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* [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders
@ 2022-04-26 12:57 Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 01/24] media: doc: Document dual use of H.264 pic_num/frame_num Nicolas Dufresne
                   ` (23 more replies)
  0 siblings, 24 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  Cc: nicolas, linux-media, linux-kernel

Until now, only Cedrus (a slice base decoder) supported interlaced
decoding.  In order to support field decoding in our frame-based decoder,
the v4l2-h264 library needed adaptation to produce the appropriate
reference lists.

This patch extends the v4l2-h264 library to produce the larger references
list needed to represent fields separately. Hantro, MTK-VCODEC and RKVDEC
drivers have been adapted to accommodate the larger lists. Though, only
Hantro and RKVDEC actually have HW support for field decoding. So only
these two have been updated to make use of the larger lists. All this work
has been done using the H.264 specification, LibreELEC downstream kernel
patches, Rockchip MPP reference software and Hantro reference software.

For reviewers, the following is the map of all commit. Patches that could
be merge independently of this serie are marked as independent. Note that
the test results do depend on the generic fixes.

01    : Documentation fix (independent)
02-03 : Improving some generic traces (independent)
04    : Minor v4l2-h264 fix (independent)
05-11 : v4l2-h264 field decoding support
12-16 : rkvdec h.264 generic fixes (independent)
17-20 : rkvdec h.264 field decoding support
21-24 : hantro h.264 field decoding support

All this work have been tested using GStreamer mainline implementation
but also with FFMPEG LibreELEC fork using the testing tool fluster
running through the ITU-T H.264 (2016-02) AVCv2 set of bitstream. Before
this patch, the scores were:

Hantro:
  FFMPEG:   88/135
  GSteamer: 90/135
RKVDEC:
  FFMPEG:   73/135
  GSteamer: 77/135

And after these changes:

Hantro:
  FFMPEG:   118/135
  GSteamer: 129/135
RKVDEC:
  FFMPEG:   118/135
  GSteamer: 129/135

Note that a bug in FFMPEG / LibreELEC fork was noticed and fixed with the
following change:

diff --git a/libavcodec/v4l2_request_h264.c b/libavcodec/v4l2_request_h264.c
index 88da8f0a2d..394bae0550 100644
--- a/libavcodec/v4l2_request_h264.c
+++ b/libavcodec/v4l2_request_h264.c
@@ -66,7 +66,7 @@ static void fill_dpb_entry(struct v4l2_h264_dpb_entry *entry, const H264Picture
 {
     entry->reference_ts = ff_v4l2_request_get_capture_timestamp(pic->f);
     entry->pic_num = pic->pic_id;
-    entry->frame_num = pic->frame_num;
+    entry->frame_num = pic->long_ref ? pic->pic_id : pic->frame_num;
     entry->fields = pic->reference & V4L2_H264_FRAME_REF;
     entry->flags = V4L2_H264_DPB_ENTRY_FLAG_VALID;
     if (entry->fields)

Some useful links:

Detailed Hantro Results:     https://gitlab.freedesktop.org/-/snippets/5189
Detailed RKVDEC Results:     https://gitlab.freedesktop.org/-/snippets/5253
ITU-T H.264 (2016-02) AVCv2: https://www.itu.int/net/itu-t/sigdb/spevideo/VideoForm-s.aspx?val=102002641
Fluster:                     https://github.com/fluendo/fluster
GStreamer:                   https://gitlab.freedesktop.org/gstreamer/gstreamer/
FFMPEG Fork:                 https://github.com/jernejsk/FFmpeg/tree/v4l2-request-hwaccel-4.4
Rockchip MPP:                https://github.com/rockchip-linux/mpp

Changes in v4:
- Fixed mtk-vcodec port
- Ported tegra-vde driver (compiled tested only)
- Applied Hans' commit message, comment and documentation suggestions

Changes in v3:
- Improved debug message on timestamp miss-match
- Moved H264 SPS validation into rkvdec-h264
- Added more comments around H264 SPS validation
- Also validate at streamon (rkvdec start())
- Applied more Review-by and Fixes tag
- Fixed Signed-off-by chain in Jonas patch

Changes in v2:
- Applied most of Sebastian's suggestion in comments and commit messages.
- Use a bool for dpb_valid and dpb_bottom in rkvdec
- Dropped one wrong typo fix (media: v4l2-mem2mem: Fix typo in trace message)
- Dropped Alex fix (media: rkvdec-h264: Don't hardcode SPS/PPS parameters
  + I will carry this one later, it seems cosmetic

Jonas Karlman (5):
  media: rkvdec: h264: Fix bit depth wrap in pps packet
  media: rkvdec: h264: Validate and use pic width and height in mbs
  media: rkvdec: h264: Fix reference frame_num wrap for second field
  media: rkvdec: Ensure decoded resolution fit coded resolution
  media: hantro: h264: Make dpb entry management more robust

Nicolas Dufresne (18):
  media: doc: Document dual use of H.264 pic_num/frame_num
  media: v4l2-mem2mem: Trace on implicit un-hold
  media: h264: Avoid wrapping long_term_frame_idx
  media: h264: Use v4l2_h264_reference for reflist
  media: h264: Increase reference lists size to 32
  media: h264: Store current picture fields
  media: h264: Store all fields into the unordered list
  media: v4l2: Trace calculated p/b0/b1 initial reflist
  media: h264: Sort p/b reflist using frame_num
  media: v4l2: Reorder field reflist
  media: rkvdec: Stop overclocking the decoder
  media: rkvdec: h264: Fix dpb_valid implementation
  media: rkvdec: Move H264 SPS validation in rkvdec-h264
  media: rkvdec-h264: Add field decoding support
  media: rkvdec: Enable capture buffer holding for H264
  media: hantro: Stop using H.264 parameter pic_num
  media: hantro: Add H.264 field decoding support
  media: hantro: Enable HOLD_CAPTURE_BUF for H.264

Sebastian Fricke (1):
  media: videobuf2-v4l2: Warn on holding buffers without support

 .../media/v4l/ext-ctrls-codec-stateless.rst   |  10 +-
 .../media/common/videobuf2/videobuf2-v4l2.c   |   7 +-
 .../mediatek/vcodec/vdec/vdec_h264_req_if.c   |  36 ++-
 .../media/platform/nvidia/tegra-vde/h264.c    |  19 +-
 drivers/media/v4l2-core/v4l2-h264.c           | 275 +++++++++++++++---
 drivers/media/v4l2-core/v4l2-mem2mem.c        |   1 +
 .../staging/media/hantro/hantro_g1_h264_dec.c |  38 +--
 drivers/staging/media/hantro/hantro_h264.c    | 134 +++++++--
 drivers/staging/media/hantro/hantro_hw.h      |   7 +-
 drivers/staging/media/hantro/hantro_v4l2.c    |  25 ++
 .../media/hantro/rockchip_vpu2_hw_h264_dec.c  |  98 +++----
 drivers/staging/media/rkvdec/rkvdec-h264.c    | 157 +++++++---
 drivers/staging/media/rkvdec/rkvdec.c         |  35 +--
 drivers/staging/media/rkvdec/rkvdec.h         |   2 +
 include/media/v4l2-h264.h                     |  31 +-
 15 files changed, 639 insertions(+), 236 deletions(-)

-- 
2.34.1


^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 01/24] media: doc: Document dual use of H.264 pic_num/frame_num
  2022-04-26 12:57 [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders Nicolas Dufresne
@ 2022-04-26 12:57 ` Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 02/24] media: v4l2-mem2mem: Trace on implicit un-hold Nicolas Dufresne
                   ` (22 subsequent siblings)
  23 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Mauro Carvalho Chehab
  Cc: nicolas, linux-media, Sebastian Fricke, linux-kernel

These two fields need documentation as they have dual meaning. It is also
confusing since pic_num is a derived value from frame_num, so this should
help application developers. If we ever need to make a V2 of this API, I
would suggest to remove pic_num entirely.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
---
 .../media/v4l/ext-ctrls-codec-stateless.rst            | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst
index 6541e4c32b26..bee73065e993 100644
--- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst
+++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst
@@ -649,10 +649,16 @@ Stateless Codec Control ID
         :c:type:`timeval` in struct :c:type:`v4l2_buffer` to a __u64.
     * - __u32
       - ``pic_num``
-      -
+      - For short term references, this must match the derived value PicNum
+	(8-28) and for long term references it must match the derived value
+	LongTermPicNum (8-29). When decoding frames (as opposed to fields)
+	pic_num is the same as FrameNumWrap.
     * - __u16
       - ``frame_num``
-      -
+      - For short term references, this must match the frame_num value from
+	the slice header syntax (the driver will wrap the value if needed). For
+	long term references, this must be set to the value of
+	long_term_frame_idx described in the dec_ref_pic_marking() syntax.
     * - __u8
       - ``fields``
       - Specifies how the DPB entry is referenced. See :ref:`Reference Fields <h264_ref_fields>`
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 02/24] media: v4l2-mem2mem: Trace on implicit un-hold
  2022-04-26 12:57 [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 01/24] media: doc: Document dual use of H.264 pic_num/frame_num Nicolas Dufresne
@ 2022-04-26 12:57 ` Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 03/24] media: videobuf2-v4l2: Warn on holding buffers without support Nicolas Dufresne
                   ` (21 subsequent siblings)
  23 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Mauro Carvalho Chehab
  Cc: nicolas, linux-media, Sebastian Fricke, Ezequiel Garcia, linux-kernel

If the timestamp of the src buffer differs from the timestamp of a held
dst buffer, the held buffer is implicitly removed and marked as done.
Add a trace to help debugging if someone hits that case.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
---
 drivers/media/v4l2-core/v4l2-mem2mem.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/v4l2-core/v4l2-mem2mem.c b/drivers/media/v4l2-core/v4l2-mem2mem.c
index 675e22895ebe..d1d29d6ab024 100644
--- a/drivers/media/v4l2-core/v4l2-mem2mem.c
+++ b/drivers/media/v4l2-core/v4l2-mem2mem.c
@@ -336,6 +336,7 @@ static void __v4l2_m2m_try_queue(struct v4l2_m2m_dev *m2m_dev,
 	if (src && dst && dst->is_held &&
 	    dst->vb2_buf.copied_timestamp &&
 	    dst->vb2_buf.timestamp != src->vb2_buf.timestamp) {
+		dprintk("Timestamp mismatch, returning held capture buffer\n");
 		dst->is_held = false;
 		v4l2_m2m_dst_buf_remove(m2m_ctx);
 		v4l2_m2m_buf_done(dst, VB2_BUF_STATE_DONE);
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 03/24] media: videobuf2-v4l2: Warn on holding buffers without support
  2022-04-26 12:57 [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 01/24] media: doc: Document dual use of H.264 pic_num/frame_num Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 02/24] media: v4l2-mem2mem: Trace on implicit un-hold Nicolas Dufresne
@ 2022-04-26 12:57 ` Nicolas Dufresne
  2022-04-27  4:31   ` Tomasz Figa
  2022-04-26 12:57 ` [PATCH v4 04/24] media: h264: Avoid wrapping long_term_frame_idx Nicolas Dufresne
                   ` (20 subsequent siblings)
  23 siblings, 1 reply; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Tomasz Figa, Marek Szyprowski, Mauro Carvalho Chehab
  Cc: nicolas, Sebastian Fricke, linux-media, Ezequiel Garcia, linux-kernel

From: Sebastian Fricke <sebastian.fricke@collabora.com>

Using V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF flag without specifying the
subsystem flag VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF, results in
silently ignoring it.
Warn the user via a debug print when the flag is requested but ignored
by the videobuf2 framework.

Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
---
 drivers/media/common/videobuf2/videobuf2-v4l2.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 6edf4508c636..812c8d1962e0 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -329,8 +329,13 @@ static int vb2_fill_vb2_v4l2_buffer(struct vb2_buffer *vb, struct v4l2_buffer *b
 		 */
 		vbuf->flags &= ~V4L2_BUF_FLAG_TIMECODE;
 		vbuf->field = b->field;
-		if (!(q->subsystem_flags & VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF))
+		if (!(q->subsystem_flags & VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF)) {
+			if (vbuf->flags & V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF)
+				dprintk(q, 1,
+					"Request holding buffer (%d), unsupported on output queue\n",
+					b->index);
 			vbuf->flags &= ~V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF;
+		}
 	} else {
 		/* Zero any output buffer flags as this is a capture buffer */
 		vbuf->flags &= ~V4L2_BUFFER_OUT_FLAGS;
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 04/24] media: h264: Avoid wrapping long_term_frame_idx
  2022-04-26 12:57 [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders Nicolas Dufresne
                   ` (2 preceding siblings ...)
  2022-04-26 12:57 ` [PATCH v4 03/24] media: videobuf2-v4l2: Warn on holding buffers without support Nicolas Dufresne
@ 2022-04-26 12:57 ` Nicolas Dufresne
  2022-04-26 12:57   ` Nicolas Dufresne
                   ` (19 subsequent siblings)
  23 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Mauro Carvalho Chehab
  Cc: nicolas, linux-media, Sebastian Fricke, Ezequiel Garcia, linux-kernel

For long term references, frame_num is set to long_term_frame_idx which
does not require wrapping. This is fixed by observation, no directly
related issue have been found yet.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
---
 drivers/media/v4l2-core/v4l2-h264.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/media/v4l2-core/v4l2-h264.c b/drivers/media/v4l2-core/v4l2-h264.c
index 5633a242520a..ac47519a9fbe 100644
--- a/drivers/media/v4l2-core/v4l2-h264.c
+++ b/drivers/media/v4l2-core/v4l2-h264.c
@@ -57,8 +57,10 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b,
 		 * '8.2.4.1 Decoding process for picture numbers' of the spec.
 		 * TODO: This logic will have to be adjusted when we start
 		 * supporting interlaced content.
+		 * For long term references, frame_num is set to
+		 * long_term_frame_idx which requires no wrapping.
 		 */
-		if (dpb[i].frame_num > cur_frame_num)
+		if (!b->refs[i].longterm && dpb[i].frame_num > cur_frame_num)
 			b->refs[i].frame_num = (int)dpb[i].frame_num -
 					       max_frame_num;
 		else
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 05/24] media: h264: Use v4l2_h264_reference for reflist
  2022-04-26 12:57 [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 01/24] media: doc: Document dual use of H.264 pic_num/frame_num Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 02/24] media: v4l2-mem2mem: Trace on implicit un-hold Nicolas Dufresne
@ 2022-04-26 12:57   ` Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 04/24] media: h264: Avoid wrapping long_term_frame_idx Nicolas Dufresne
                     ` (20 subsequent siblings)
  23 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab,
	Dmitry Osipenko, Thierry Reding, Jonathan Hunter,
	Ezequiel Garcia, Philipp Zabel, Greg Kroah-Hartman,
	Heiko Stuebner, Matthias Brugger
  Cc: nicolas, linux-media, linux-kernel, linux-tegra, linux-rockchip,
	linux-staging, linux-arm-kernel, linux-mediatek

In preparation for adding field decoding support, convert the byte arrays
for reflist into array of struct v4l2_h264_reference. That struct will
allow us to mark which field of the reference picture is being referenced.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
---
 .../mediatek/vcodec/vdec/vdec_h264_req_if.c   | 36 +++++--
 .../media/platform/nvidia/tegra-vde/h264.c    | 19 ++--
 drivers/media/v4l2-core/v4l2-h264.c           | 33 ++++---
 .../staging/media/hantro/hantro_g1_h264_dec.c | 38 +++----
 drivers/staging/media/hantro/hantro_hw.h      |  6 +-
 .../media/hantro/rockchip_vpu2_hw_h264_dec.c  | 98 +++++++++----------
 drivers/staging/media/rkvdec/rkvdec-h264.c    | 12 +--
 include/media/v4l2-h264.h                     | 19 ++--
 8 files changed, 143 insertions(+), 118 deletions(-)

diff --git a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c
index 43542de11e9c..8e59cf5c05a0 100644
--- a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c
+++ b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c
@@ -439,11 +439,24 @@ static void update_dpb(const struct v4l2_ctrl_h264_decode_params *dec_param,
 	}
 }
 
-/*
- * The firmware expects unused reflist entries to have the value 0x20.
- */
-static void fixup_ref_list(u8 *ref_list, size_t num_valid)
+static void get_ref_list(u8 *ref_list,
+			 const struct v4l2_h264_reference *v4l2_ref_list,
+			 int num_valid)
 {
+	u32 i;
+
+	/*
+	 * TODO The firmware does not support field decoding. Future
+	 * implementation must use v4l2_ref_list[i].fields to obtain
+	 * the reference field parity.
+	 */
+
+	for (i = 0; i < num_valid; i++)
+		ref_list[i] = v4l2_ref_list[i].index;
+
+	/*
+	 * The firmware expects unused reflist entries to have the value 0x20.
+	 */
 	memset(&ref_list[num_valid], 0x20, 32 - num_valid);
 }
 
@@ -459,6 +472,9 @@ static void get_vdec_decode_parameters(struct vdec_h264_slice_inst *inst)
 		get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_SCALING_MATRIX);
 	struct mtk_h264_dec_slice_param *slice_param = &inst->h264_slice_param;
 	struct v4l2_h264_reflist_builder reflist_builder;
+	struct v4l2_h264_reference v4l2_p0_reflist[V4L2_H264_REF_LIST_LEN];
+	struct v4l2_h264_reference v4l2_b0_reflist[V4L2_H264_REF_LIST_LEN];
+	struct v4l2_h264_reference v4l2_b1_reflist[V4L2_H264_REF_LIST_LEN];
 	u8 *p0_reflist = slice_param->decode_params.ref_pic_list_p0;
 	u8 *b0_reflist = slice_param->decode_params.ref_pic_list_b0;
 	u8 *b1_reflist = slice_param->decode_params.ref_pic_list_b1;
@@ -475,12 +491,14 @@ static void get_vdec_decode_parameters(struct vdec_h264_slice_inst *inst)
 	/* Build the reference lists */
 	v4l2_h264_init_reflist_builder(&reflist_builder, dec_params, sps,
 				       inst->dpb);
-	v4l2_h264_build_p_ref_list(&reflist_builder, p0_reflist);
-	v4l2_h264_build_b_ref_lists(&reflist_builder, b0_reflist, b1_reflist);
+	v4l2_h264_build_p_ref_list(&reflist_builder, v4l2_p0_reflist);
+	v4l2_h264_build_b_ref_lists(&reflist_builder, v4l2_b0_reflist,
+				    v4l2_b1_reflist);
+
 	/* Adapt the built lists to the firmware's expectations */
-	fixup_ref_list(p0_reflist, reflist_builder.num_valid);
-	fixup_ref_list(b0_reflist, reflist_builder.num_valid);
-	fixup_ref_list(b1_reflist, reflist_builder.num_valid);
+	get_ref_list(p0_reflist, v4l2_p0_reflist, reflist_builder.num_valid);
+	get_ref_list(b0_reflist, v4l2_b0_reflist, reflist_builder.num_valid);
+	get_ref_list(b1_reflist, v4l2_b1_reflist, reflist_builder.num_valid);
 
 	memcpy(&inst->vsi_ctx.h264_slice_params, slice_param,
 	       sizeof(inst->vsi_ctx.h264_slice_params));
diff --git a/drivers/media/platform/nvidia/tegra-vde/h264.c b/drivers/media/platform/nvidia/tegra-vde/h264.c
index d8e5534e80c8..acc1b97f06ad 100644
--- a/drivers/media/platform/nvidia/tegra-vde/h264.c
+++ b/drivers/media/platform/nvidia/tegra-vde/h264.c
@@ -45,9 +45,9 @@ struct tegra_vde_h264_decoder_ctx {
 };
 
 struct h264_reflists {
-	u8 p[V4L2_H264_NUM_DPB_ENTRIES];
-	u8 b0[V4L2_H264_NUM_DPB_ENTRIES];
-	u8 b1[V4L2_H264_NUM_DPB_ENTRIES];
+	struct v4l2_h264_reference p[V4L2_H264_NUM_DPB_ENTRIES];
+	struct v4l2_h264_reference b0[V4L2_H264_NUM_DPB_ENTRIES];
+	struct v4l2_h264_reference b1[V4L2_H264_NUM_DPB_ENTRIES];
 };
 
 static int tegra_vde_wait_mbe(struct tegra_vde *vde)
@@ -768,7 +768,7 @@ static int tegra_vde_h264_setup_frames(struct tegra_ctx *ctx,
 	struct h264_reflists reflists;
 	struct vb2_buffer *ref;
 	unsigned int i;
-	u8 *dpb_id;
+	struct v4l2_h264_reference *dpb_id;
 	int err;
 
 	/*
@@ -811,14 +811,16 @@ static int tegra_vde_h264_setup_frames(struct tegra_ctx *ctx,
 	}
 
 	for (i = 0; i < b.num_valid; i++) {
-		ref = get_ref_buf(ctx, dst, dpb_id[i]);
+		int dpb_idx = dpb_id[i].index;
 
-		err = tegra_vde_h264_setup_frame(ctx, h264, &b, ref, dpb_id[i],
+		ref = get_ref_buf(ctx, dst, dpb_idx);
+
+		err = tegra_vde_h264_setup_frame(ctx, h264, &b, ref, dpb_idx,
 						 h264->dpb_frames_nb++);
 		if (err)
 			return err;
 
-		if (b.refs[dpb_id[i]].pic_order_count < b.cur_pic_order_count)
+		if (b.refs[dpb_idx].top_field_order_cnt < b.cur_pic_order_count)
 			h264->dpb_ref_frames_with_earlier_poc_nb++;
 	}
 
@@ -880,6 +882,9 @@ static int tegra_vde_h264_setup_context(struct tegra_ctx *ctx,
 	if (h->pps->flags & V4L2_H264_PPS_FLAG_ENTROPY_CODING_MODE)
 		return -EOPNOTSUPP;
 
+	if (h->decode_params->flags & V4L2_H264_DECODE_PARAM_FLAG_FIELD_PIC)
+		return -EOPNOTSUPP;
+
 	if (h->sps->profile_idc == 66)
 		h264->baseline_profile = 1;
 
diff --git a/drivers/media/v4l2-core/v4l2-h264.c b/drivers/media/v4l2-core/v4l2-h264.c
index ac47519a9fbe..afbfcf78efe4 100644
--- a/drivers/media/v4l2-core/v4l2-h264.c
+++ b/drivers/media/v4l2-core/v4l2-h264.c
@@ -75,12 +75,12 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b,
 			pic_order_count = dpb[i].top_field_order_cnt;
 
 		b->refs[i].pic_order_count = pic_order_count;
-		b->unordered_reflist[b->num_valid] = i;
+		b->unordered_reflist[b->num_valid].index = i;
 		b->num_valid++;
 	}
 
 	for (i = b->num_valid; i < ARRAY_SIZE(b->unordered_reflist); i++)
-		b->unordered_reflist[i] = i;
+		b->unordered_reflist[i].index = i;
 }
 EXPORT_SYMBOL_GPL(v4l2_h264_init_reflist_builder);
 
@@ -90,8 +90,8 @@ static int v4l2_h264_p_ref_list_cmp(const void *ptra, const void *ptrb,
 	const struct v4l2_h264_reflist_builder *builder = data;
 	u8 idxa, idxb;
 
-	idxa = *((u8 *)ptra);
-	idxb = *((u8 *)ptrb);
+	idxa = ((struct v4l2_h264_reference *)ptra)->index;
+	idxb = ((struct v4l2_h264_reference *)ptrb)->index;
 
 	if (WARN_ON(idxa >= V4L2_H264_NUM_DPB_ENTRIES ||
 		    idxb >= V4L2_H264_NUM_DPB_ENTRIES))
@@ -125,8 +125,8 @@ static int v4l2_h264_b0_ref_list_cmp(const void *ptra, const void *ptrb,
 	s32 poca, pocb;
 	u8 idxa, idxb;
 
-	idxa = *((u8 *)ptra);
-	idxb = *((u8 *)ptrb);
+	idxa = ((struct v4l2_h264_reference *)ptra)->index;
+	idxb = ((struct v4l2_h264_reference *)ptrb)->index;
 
 	if (WARN_ON(idxa >= V4L2_H264_NUM_DPB_ENTRIES ||
 		    idxb >= V4L2_H264_NUM_DPB_ENTRIES))
@@ -170,8 +170,8 @@ static int v4l2_h264_b1_ref_list_cmp(const void *ptra, const void *ptrb,
 	s32 poca, pocb;
 	u8 idxa, idxb;
 
-	idxa = *((u8 *)ptra);
-	idxb = *((u8 *)ptrb);
+	idxa = ((struct v4l2_h264_reference *)ptra)->index;
+	idxb = ((struct v4l2_h264_reference *)ptrb)->index;
 
 	if (WARN_ON(idxa >= V4L2_H264_NUM_DPB_ENTRIES ||
 		    idxb >= V4L2_H264_NUM_DPB_ENTRIES))
@@ -212,8 +212,8 @@ static int v4l2_h264_b1_ref_list_cmp(const void *ptra, const void *ptrb,
  * v4l2_h264_build_p_ref_list() - Build the P reference list
  *
  * @builder: reference list builder context
- * @reflist: 16-bytes array used to store the P reference list. Each entry
- *	     is an index in the DPB
+ * @reflist: 16 sized array used to store the P reference list. Each entry
+ *	     is a v4l2_h264_reference structure
  *
  * This functions builds the P reference lists. This procedure is describe in
  * section '8.2.4 Decoding process for reference picture lists construction'
@@ -222,7 +222,7 @@ static int v4l2_h264_b1_ref_list_cmp(const void *ptra, const void *ptrb,
  */
 void
 v4l2_h264_build_p_ref_list(const struct v4l2_h264_reflist_builder *builder,
-			   u8 *reflist)
+			   struct v4l2_h264_reference *reflist)
 {
 	memcpy(reflist, builder->unordered_reflist,
 	       sizeof(builder->unordered_reflist[0]) * builder->num_valid);
@@ -235,10 +235,10 @@ EXPORT_SYMBOL_GPL(v4l2_h264_build_p_ref_list);
  * v4l2_h264_build_b_ref_lists() - Build the B0/B1 reference lists
  *
  * @builder: reference list builder context
- * @b0_reflist: 16-bytes array used to store the B0 reference list. Each entry
- *		is an index in the DPB
- * @b1_reflist: 16-bytes array used to store the B1 reference list. Each entry
- *		is an index in the DPB
+ * @b0_reflist: 16 sized array used to store the B0 reference list. Each entry
+ *		is a v4l2_h264_reference structure
+ * @b1_reflist: 16 sized array used to store the B1 reference list. Each entry
+ *		is a v4l2_h264_reference structure
  *
  * This functions builds the B0/B1 reference lists. This procedure is described
  * in section '8.2.4 Decoding process for reference picture lists construction'
@@ -247,7 +247,8 @@ EXPORT_SYMBOL_GPL(v4l2_h264_build_p_ref_list);
  */
 void
 v4l2_h264_build_b_ref_lists(const struct v4l2_h264_reflist_builder *builder,
-			    u8 *b0_reflist, u8 *b1_reflist)
+			    struct v4l2_h264_reference *b0_reflist,
+			    struct v4l2_h264_reference *b1_reflist)
 {
 	memcpy(b0_reflist, builder->unordered_reflist,
 	       sizeof(builder->unordered_reflist[0]) * builder->num_valid);
diff --git a/drivers/staging/media/hantro/hantro_g1_h264_dec.c b/drivers/staging/media/hantro/hantro_g1_h264_dec.c
index f49dbfb8a843..9de7f05eff2a 100644
--- a/drivers/staging/media/hantro/hantro_g1_h264_dec.c
+++ b/drivers/staging/media/hantro/hantro_g1_h264_dec.c
@@ -126,7 +126,7 @@ static void set_params(struct hantro_ctx *ctx, struct vb2_v4l2_buffer *src_buf)
 
 static void set_ref(struct hantro_ctx *ctx)
 {
-	const u8 *b0_reflist, *b1_reflist, *p_reflist;
+	const struct v4l2_h264_reference *b0_reflist, *b1_reflist, *p_reflist;
 	struct hantro_dev *vpu = ctx->dev;
 	int reg_num;
 	u32 reg;
@@ -157,12 +157,12 @@ static void set_ref(struct hantro_ctx *ctx)
 	 */
 	reg_num = 0;
 	for (i = 0; i < 15; i += 3) {
-		reg = G1_REG_BD_REF_PIC_BINIT_RLIST_F0(b0_reflist[i]) |
-		      G1_REG_BD_REF_PIC_BINIT_RLIST_F1(b0_reflist[i + 1]) |
-		      G1_REG_BD_REF_PIC_BINIT_RLIST_F2(b0_reflist[i + 2]) |
-		      G1_REG_BD_REF_PIC_BINIT_RLIST_B0(b1_reflist[i]) |
-		      G1_REG_BD_REF_PIC_BINIT_RLIST_B1(b1_reflist[i + 1]) |
-		      G1_REG_BD_REF_PIC_BINIT_RLIST_B2(b1_reflist[i + 2]);
+		reg = G1_REG_BD_REF_PIC_BINIT_RLIST_F0(b0_reflist[i].index) |
+		      G1_REG_BD_REF_PIC_BINIT_RLIST_F1(b0_reflist[i + 1].index) |
+		      G1_REG_BD_REF_PIC_BINIT_RLIST_F2(b0_reflist[i + 2].index) |
+		      G1_REG_BD_REF_PIC_BINIT_RLIST_B0(b1_reflist[i].index) |
+		      G1_REG_BD_REF_PIC_BINIT_RLIST_B1(b1_reflist[i + 1].index) |
+		      G1_REG_BD_REF_PIC_BINIT_RLIST_B2(b1_reflist[i + 2].index);
 		vdpu_write_relaxed(vpu, reg, G1_REG_BD_REF_PIC(reg_num++));
 	}
 
@@ -171,12 +171,12 @@ static void set_ref(struct hantro_ctx *ctx)
 	 * of forward and backward reference picture lists and first 4 entries
 	 * of P forward picture list.
 	 */
-	reg = G1_REG_BD_P_REF_PIC_BINIT_RLIST_F15(b0_reflist[15]) |
-	      G1_REG_BD_P_REF_PIC_BINIT_RLIST_B15(b1_reflist[15]) |
-	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F0(p_reflist[0]) |
-	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F1(p_reflist[1]) |
-	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F2(p_reflist[2]) |
-	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F3(p_reflist[3]);
+	reg = G1_REG_BD_P_REF_PIC_BINIT_RLIST_F15(b0_reflist[15].index) |
+	      G1_REG_BD_P_REF_PIC_BINIT_RLIST_B15(b1_reflist[15].index) |
+	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F0(p_reflist[0].index) |
+	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F1(p_reflist[1].index) |
+	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F2(p_reflist[2].index) |
+	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F3(p_reflist[3].index);
 	vdpu_write_relaxed(vpu, reg, G1_REG_BD_P_REF_PIC);
 
 	/*
@@ -185,12 +185,12 @@ static void set_ref(struct hantro_ctx *ctx)
 	 */
 	reg_num = 0;
 	for (i = 4; i < HANTRO_H264_DPB_SIZE; i += 6) {
-		reg = G1_REG_FWD_PIC_PINIT_RLIST_F0(p_reflist[i]) |
-		      G1_REG_FWD_PIC_PINIT_RLIST_F1(p_reflist[i + 1]) |
-		      G1_REG_FWD_PIC_PINIT_RLIST_F2(p_reflist[i + 2]) |
-		      G1_REG_FWD_PIC_PINIT_RLIST_F3(p_reflist[i + 3]) |
-		      G1_REG_FWD_PIC_PINIT_RLIST_F4(p_reflist[i + 4]) |
-		      G1_REG_FWD_PIC_PINIT_RLIST_F5(p_reflist[i + 5]);
+		reg = G1_REG_FWD_PIC_PINIT_RLIST_F0(p_reflist[i].index) |
+		      G1_REG_FWD_PIC_PINIT_RLIST_F1(p_reflist[i + 1].index) |
+		      G1_REG_FWD_PIC_PINIT_RLIST_F2(p_reflist[i + 2].index) |
+		      G1_REG_FWD_PIC_PINIT_RLIST_F3(p_reflist[i + 3].index) |
+		      G1_REG_FWD_PIC_PINIT_RLIST_F4(p_reflist[i + 4].index) |
+		      G1_REG_FWD_PIC_PINIT_RLIST_F5(p_reflist[i + 5].index);
 		vdpu_write_relaxed(vpu, reg, G1_REG_FWD_PIC(reg_num++));
 	}
 
diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
index ed018e293ba0..2bc6b8f088f5 100644
--- a/drivers/staging/media/hantro/hantro_hw.h
+++ b/drivers/staging/media/hantro/hantro_hw.h
@@ -69,9 +69,9 @@ struct hantro_h264_dec_ctrls {
  * @b1:		B1 reflist
  */
 struct hantro_h264_dec_reflists {
-	u8 p[HANTRO_H264_DPB_SIZE];
-	u8 b0[HANTRO_H264_DPB_SIZE];
-	u8 b1[HANTRO_H264_DPB_SIZE];
+	struct v4l2_h264_reference p[HANTRO_H264_DPB_SIZE];
+	struct v4l2_h264_reference b0[HANTRO_H264_DPB_SIZE];
+	struct v4l2_h264_reference b1[HANTRO_H264_DPB_SIZE];
 };
 
 /**
diff --git a/drivers/staging/media/hantro/rockchip_vpu2_hw_h264_dec.c b/drivers/staging/media/hantro/rockchip_vpu2_hw_h264_dec.c
index 64a6330475eb..46c1a83bcc4e 100644
--- a/drivers/staging/media/hantro/rockchip_vpu2_hw_h264_dec.c
+++ b/drivers/staging/media/hantro/rockchip_vpu2_hw_h264_dec.c
@@ -298,7 +298,7 @@ static void set_params(struct hantro_ctx *ctx, struct vb2_v4l2_buffer *src_buf)
 
 static void set_ref(struct hantro_ctx *ctx)
 {
-	const u8 *b0_reflist, *b1_reflist, *p_reflist;
+	const struct v4l2_h264_reference *b0_reflist, *b1_reflist, *p_reflist;
 	struct hantro_dev *vpu = ctx->dev;
 	u32 reg;
 	int i;
@@ -307,20 +307,20 @@ static void set_ref(struct hantro_ctx *ctx)
 	b1_reflist = ctx->h264_dec.reflists.b1;
 	p_reflist = ctx->h264_dec.reflists.p;
 
-	reg = VDPU_REG_PINIT_RLIST_F9(p_reflist[9]) |
-	      VDPU_REG_PINIT_RLIST_F8(p_reflist[8]) |
-	      VDPU_REG_PINIT_RLIST_F7(p_reflist[7]) |
-	      VDPU_REG_PINIT_RLIST_F6(p_reflist[6]) |
-	      VDPU_REG_PINIT_RLIST_F5(p_reflist[5]) |
-	      VDPU_REG_PINIT_RLIST_F4(p_reflist[4]);
+	reg = VDPU_REG_PINIT_RLIST_F9(p_reflist[9].index) |
+	      VDPU_REG_PINIT_RLIST_F8(p_reflist[8].index) |
+	      VDPU_REG_PINIT_RLIST_F7(p_reflist[7].index) |
+	      VDPU_REG_PINIT_RLIST_F6(p_reflist[6].index) |
+	      VDPU_REG_PINIT_RLIST_F5(p_reflist[5].index) |
+	      VDPU_REG_PINIT_RLIST_F4(p_reflist[4].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(74));
 
-	reg = VDPU_REG_PINIT_RLIST_F15(p_reflist[15]) |
-	      VDPU_REG_PINIT_RLIST_F14(p_reflist[14]) |
-	      VDPU_REG_PINIT_RLIST_F13(p_reflist[13]) |
-	      VDPU_REG_PINIT_RLIST_F12(p_reflist[12]) |
-	      VDPU_REG_PINIT_RLIST_F11(p_reflist[11]) |
-	      VDPU_REG_PINIT_RLIST_F10(p_reflist[10]);
+	reg = VDPU_REG_PINIT_RLIST_F15(p_reflist[15].index) |
+	      VDPU_REG_PINIT_RLIST_F14(p_reflist[14].index) |
+	      VDPU_REG_PINIT_RLIST_F13(p_reflist[13].index) |
+	      VDPU_REG_PINIT_RLIST_F12(p_reflist[12].index) |
+	      VDPU_REG_PINIT_RLIST_F11(p_reflist[11].index) |
+	      VDPU_REG_PINIT_RLIST_F10(p_reflist[10].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(75));
 
 	reg = VDPU_REG_REFER1_NBR(hantro_h264_get_ref_nbr(ctx, 1)) |
@@ -355,54 +355,54 @@ static void set_ref(struct hantro_ctx *ctx)
 	      VDPU_REG_REFER14_NBR(hantro_h264_get_ref_nbr(ctx, 14));
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(83));
 
-	reg = VDPU_REG_BINIT_RLIST_F5(b0_reflist[5]) |
-	      VDPU_REG_BINIT_RLIST_F4(b0_reflist[4]) |
-	      VDPU_REG_BINIT_RLIST_F3(b0_reflist[3]) |
-	      VDPU_REG_BINIT_RLIST_F2(b0_reflist[2]) |
-	      VDPU_REG_BINIT_RLIST_F1(b0_reflist[1]) |
-	      VDPU_REG_BINIT_RLIST_F0(b0_reflist[0]);
+	reg = VDPU_REG_BINIT_RLIST_F5(b0_reflist[5].index) |
+	      VDPU_REG_BINIT_RLIST_F4(b0_reflist[4].index) |
+	      VDPU_REG_BINIT_RLIST_F3(b0_reflist[3].index) |
+	      VDPU_REG_BINIT_RLIST_F2(b0_reflist[2].index) |
+	      VDPU_REG_BINIT_RLIST_F1(b0_reflist[1].index) |
+	      VDPU_REG_BINIT_RLIST_F0(b0_reflist[0].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(100));
 
-	reg = VDPU_REG_BINIT_RLIST_F11(b0_reflist[11]) |
-	      VDPU_REG_BINIT_RLIST_F10(b0_reflist[10]) |
-	      VDPU_REG_BINIT_RLIST_F9(b0_reflist[9]) |
-	      VDPU_REG_BINIT_RLIST_F8(b0_reflist[8]) |
-	      VDPU_REG_BINIT_RLIST_F7(b0_reflist[7]) |
-	      VDPU_REG_BINIT_RLIST_F6(b0_reflist[6]);
+	reg = VDPU_REG_BINIT_RLIST_F11(b0_reflist[11].index) |
+	      VDPU_REG_BINIT_RLIST_F10(b0_reflist[10].index) |
+	      VDPU_REG_BINIT_RLIST_F9(b0_reflist[9].index) |
+	      VDPU_REG_BINIT_RLIST_F8(b0_reflist[8].index) |
+	      VDPU_REG_BINIT_RLIST_F7(b0_reflist[7].index) |
+	      VDPU_REG_BINIT_RLIST_F6(b0_reflist[6].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(101));
 
-	reg = VDPU_REG_BINIT_RLIST_F15(b0_reflist[15]) |
-	      VDPU_REG_BINIT_RLIST_F14(b0_reflist[14]) |
-	      VDPU_REG_BINIT_RLIST_F13(b0_reflist[13]) |
-	      VDPU_REG_BINIT_RLIST_F12(b0_reflist[12]);
+	reg = VDPU_REG_BINIT_RLIST_F15(b0_reflist[15].index) |
+	      VDPU_REG_BINIT_RLIST_F14(b0_reflist[14].index) |
+	      VDPU_REG_BINIT_RLIST_F13(b0_reflist[13].index) |
+	      VDPU_REG_BINIT_RLIST_F12(b0_reflist[12].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(102));
 
-	reg = VDPU_REG_BINIT_RLIST_B5(b1_reflist[5]) |
-	      VDPU_REG_BINIT_RLIST_B4(b1_reflist[4]) |
-	      VDPU_REG_BINIT_RLIST_B3(b1_reflist[3]) |
-	      VDPU_REG_BINIT_RLIST_B2(b1_reflist[2]) |
-	      VDPU_REG_BINIT_RLIST_B1(b1_reflist[1]) |
-	      VDPU_REG_BINIT_RLIST_B0(b1_reflist[0]);
+	reg = VDPU_REG_BINIT_RLIST_B5(b1_reflist[5].index) |
+	      VDPU_REG_BINIT_RLIST_B4(b1_reflist[4].index) |
+	      VDPU_REG_BINIT_RLIST_B3(b1_reflist[3].index) |
+	      VDPU_REG_BINIT_RLIST_B2(b1_reflist[2].index) |
+	      VDPU_REG_BINIT_RLIST_B1(b1_reflist[1].index) |
+	      VDPU_REG_BINIT_RLIST_B0(b1_reflist[0].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(103));
 
-	reg = VDPU_REG_BINIT_RLIST_B11(b1_reflist[11]) |
-	      VDPU_REG_BINIT_RLIST_B10(b1_reflist[10]) |
-	      VDPU_REG_BINIT_RLIST_B9(b1_reflist[9]) |
-	      VDPU_REG_BINIT_RLIST_B8(b1_reflist[8]) |
-	      VDPU_REG_BINIT_RLIST_B7(b1_reflist[7]) |
-	      VDPU_REG_BINIT_RLIST_B6(b1_reflist[6]);
+	reg = VDPU_REG_BINIT_RLIST_B11(b1_reflist[11].index) |
+	      VDPU_REG_BINIT_RLIST_B10(b1_reflist[10].index) |
+	      VDPU_REG_BINIT_RLIST_B9(b1_reflist[9].index) |
+	      VDPU_REG_BINIT_RLIST_B8(b1_reflist[8].index) |
+	      VDPU_REG_BINIT_RLIST_B7(b1_reflist[7].index) |
+	      VDPU_REG_BINIT_RLIST_B6(b1_reflist[6].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(104));
 
-	reg = VDPU_REG_BINIT_RLIST_B15(b1_reflist[15]) |
-	      VDPU_REG_BINIT_RLIST_B14(b1_reflist[14]) |
-	      VDPU_REG_BINIT_RLIST_B13(b1_reflist[13]) |
-	      VDPU_REG_BINIT_RLIST_B12(b1_reflist[12]);
+	reg = VDPU_REG_BINIT_RLIST_B15(b1_reflist[15].index) |
+	      VDPU_REG_BINIT_RLIST_B14(b1_reflist[14].index) |
+	      VDPU_REG_BINIT_RLIST_B13(b1_reflist[13].index) |
+	      VDPU_REG_BINIT_RLIST_B12(b1_reflist[12].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(105));
 
-	reg = VDPU_REG_PINIT_RLIST_F3(p_reflist[3]) |
-	      VDPU_REG_PINIT_RLIST_F2(p_reflist[2]) |
-	      VDPU_REG_PINIT_RLIST_F1(p_reflist[1]) |
-	      VDPU_REG_PINIT_RLIST_F0(p_reflist[0]);
+	reg = VDPU_REG_PINIT_RLIST_F3(p_reflist[3].index) |
+	      VDPU_REG_PINIT_RLIST_F2(p_reflist[2].index) |
+	      VDPU_REG_PINIT_RLIST_F1(p_reflist[1].index) |
+	      VDPU_REG_PINIT_RLIST_F0(p_reflist[0].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(106));
 
 	reg = VDPU_REG_REFER_LTERM_E(ctx->h264_dec.dpb_longterm);
diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
index 951e19231da2..3c7f3d87fab4 100644
--- a/drivers/staging/media/rkvdec/rkvdec-h264.c
+++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
@@ -100,9 +100,9 @@ struct rkvdec_h264_priv_tbl {
 #define RKVDEC_H264_DPB_SIZE 16
 
 struct rkvdec_h264_reflists {
-	u8 p[RKVDEC_H264_DPB_SIZE];
-	u8 b0[RKVDEC_H264_DPB_SIZE];
-	u8 b1[RKVDEC_H264_DPB_SIZE];
+	struct v4l2_h264_reference p[RKVDEC_H264_DPB_SIZE];
+	struct v4l2_h264_reference b0[RKVDEC_H264_DPB_SIZE];
+	struct v4l2_h264_reference b1[RKVDEC_H264_DPB_SIZE];
 	u8 num_valid;
 };
 
@@ -767,13 +767,13 @@ static void assemble_hw_rps(struct rkvdec_ctx *ctx,
 
 			switch (j) {
 			case 0:
-				idx = h264_ctx->reflists.p[i];
+				idx = h264_ctx->reflists.p[i].index;
 				break;
 			case 1:
-				idx = h264_ctx->reflists.b0[i];
+				idx = h264_ctx->reflists.b0[i].index;
 				break;
 			case 2:
-				idx = h264_ctx->reflists.b1[i];
+				idx = h264_ctx->reflists.b1[i].index;
 				break;
 			}
 
diff --git a/include/media/v4l2-h264.h b/include/media/v4l2-h264.h
index 4b1c71c935e0..ef9a894e3c32 100644
--- a/include/media/v4l2-h264.h
+++ b/include/media/v4l2-h264.h
@@ -37,7 +37,7 @@ struct v4l2_h264_reflist_builder {
 		u16 longterm : 1;
 	} refs[V4L2_H264_NUM_DPB_ENTRIES];
 	s32 cur_pic_order_count;
-	u8 unordered_reflist[V4L2_H264_NUM_DPB_ENTRIES];
+	struct v4l2_h264_reference unordered_reflist[V4L2_H264_NUM_DPB_ENTRIES];
 	u8 num_valid;
 };
 
@@ -51,10 +51,10 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b,
  * v4l2_h264_build_b_ref_lists() - Build the B0/B1 reference lists
  *
  * @builder: reference list builder context
- * @b0_reflist: 16-bytes array used to store the B0 reference list. Each entry
- *		is an index in the DPB
- * @b1_reflist: 16-bytes array used to store the B1 reference list. Each entry
- *		is an index in the DPB
+ * @b0_reflist: 16 sized array used to store the B0 reference list. Each entry
+ *		is a v4l2_h264_reference structure
+ * @b1_reflist: 16 sized array used to store the B1 reference list. Each entry
+ *		is a v4l2_h264_reference structure
  *
  * This functions builds the B0/B1 reference lists. This procedure is described
  * in section '8.2.4 Decoding process for reference picture lists construction'
@@ -63,14 +63,15 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b,
  */
 void
 v4l2_h264_build_b_ref_lists(const struct v4l2_h264_reflist_builder *builder,
-			    u8 *b0_reflist, u8 *b1_reflist);
+			    struct v4l2_h264_reference *b0_reflist,
+			    struct v4l2_h264_reference *b1_reflist);
 
 /**
  * v4l2_h264_build_p_ref_list() - Build the P reference list
  *
  * @builder: reference list builder context
- * @reflist: 16-bytes array used to store the P reference list. Each entry
- *	     is an index in the DPB
+ * @reflist: 16 sized array used to store the P reference list. Each entry
+ *	     is a v4l2_h264_reference structure
  *
  * This functions builds the P reference lists. This procedure is describe in
  * section '8.2.4 Decoding process for reference picture lists construction'
@@ -79,6 +80,6 @@ v4l2_h264_build_b_ref_lists(const struct v4l2_h264_reflist_builder *builder,
  */
 void
 v4l2_h264_build_p_ref_list(const struct v4l2_h264_reflist_builder *builder,
-			   u8 *reflist);
+			   struct v4l2_h264_reference *reflist);
 
 #endif /* _MEDIA_V4L2_H264_H */
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 05/24] media: h264: Use v4l2_h264_reference for reflist
@ 2022-04-26 12:57   ` Nicolas Dufresne
  0 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab,
	Dmitry Osipenko, Thierry Reding, Jonathan Hunter,
	Ezequiel Garcia, Philipp Zabel, Greg Kroah-Hartman,
	Heiko Stuebner, Matthias Brugger
  Cc: nicolas, linux-media, linux-kernel, linux-tegra, linux-rockchip,
	linux-staging, linux-arm-kernel, linux-mediatek

In preparation for adding field decoding support, convert the byte arrays
for reflist into array of struct v4l2_h264_reference. That struct will
allow us to mark which field of the reference picture is being referenced.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
---
 .../mediatek/vcodec/vdec/vdec_h264_req_if.c   | 36 +++++--
 .../media/platform/nvidia/tegra-vde/h264.c    | 19 ++--
 drivers/media/v4l2-core/v4l2-h264.c           | 33 ++++---
 .../staging/media/hantro/hantro_g1_h264_dec.c | 38 +++----
 drivers/staging/media/hantro/hantro_hw.h      |  6 +-
 .../media/hantro/rockchip_vpu2_hw_h264_dec.c  | 98 +++++++++----------
 drivers/staging/media/rkvdec/rkvdec-h264.c    | 12 +--
 include/media/v4l2-h264.h                     | 19 ++--
 8 files changed, 143 insertions(+), 118 deletions(-)

diff --git a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c
index 43542de11e9c..8e59cf5c05a0 100644
--- a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c
+++ b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c
@@ -439,11 +439,24 @@ static void update_dpb(const struct v4l2_ctrl_h264_decode_params *dec_param,
 	}
 }
 
-/*
- * The firmware expects unused reflist entries to have the value 0x20.
- */
-static void fixup_ref_list(u8 *ref_list, size_t num_valid)
+static void get_ref_list(u8 *ref_list,
+			 const struct v4l2_h264_reference *v4l2_ref_list,
+			 int num_valid)
 {
+	u32 i;
+
+	/*
+	 * TODO The firmware does not support field decoding. Future
+	 * implementation must use v4l2_ref_list[i].fields to obtain
+	 * the reference field parity.
+	 */
+
+	for (i = 0; i < num_valid; i++)
+		ref_list[i] = v4l2_ref_list[i].index;
+
+	/*
+	 * The firmware expects unused reflist entries to have the value 0x20.
+	 */
 	memset(&ref_list[num_valid], 0x20, 32 - num_valid);
 }
 
@@ -459,6 +472,9 @@ static void get_vdec_decode_parameters(struct vdec_h264_slice_inst *inst)
 		get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_SCALING_MATRIX);
 	struct mtk_h264_dec_slice_param *slice_param = &inst->h264_slice_param;
 	struct v4l2_h264_reflist_builder reflist_builder;
+	struct v4l2_h264_reference v4l2_p0_reflist[V4L2_H264_REF_LIST_LEN];
+	struct v4l2_h264_reference v4l2_b0_reflist[V4L2_H264_REF_LIST_LEN];
+	struct v4l2_h264_reference v4l2_b1_reflist[V4L2_H264_REF_LIST_LEN];
 	u8 *p0_reflist = slice_param->decode_params.ref_pic_list_p0;
 	u8 *b0_reflist = slice_param->decode_params.ref_pic_list_b0;
 	u8 *b1_reflist = slice_param->decode_params.ref_pic_list_b1;
@@ -475,12 +491,14 @@ static void get_vdec_decode_parameters(struct vdec_h264_slice_inst *inst)
 	/* Build the reference lists */
 	v4l2_h264_init_reflist_builder(&reflist_builder, dec_params, sps,
 				       inst->dpb);
-	v4l2_h264_build_p_ref_list(&reflist_builder, p0_reflist);
-	v4l2_h264_build_b_ref_lists(&reflist_builder, b0_reflist, b1_reflist);
+	v4l2_h264_build_p_ref_list(&reflist_builder, v4l2_p0_reflist);
+	v4l2_h264_build_b_ref_lists(&reflist_builder, v4l2_b0_reflist,
+				    v4l2_b1_reflist);
+
 	/* Adapt the built lists to the firmware's expectations */
-	fixup_ref_list(p0_reflist, reflist_builder.num_valid);
-	fixup_ref_list(b0_reflist, reflist_builder.num_valid);
-	fixup_ref_list(b1_reflist, reflist_builder.num_valid);
+	get_ref_list(p0_reflist, v4l2_p0_reflist, reflist_builder.num_valid);
+	get_ref_list(b0_reflist, v4l2_b0_reflist, reflist_builder.num_valid);
+	get_ref_list(b1_reflist, v4l2_b1_reflist, reflist_builder.num_valid);
 
 	memcpy(&inst->vsi_ctx.h264_slice_params, slice_param,
 	       sizeof(inst->vsi_ctx.h264_slice_params));
diff --git a/drivers/media/platform/nvidia/tegra-vde/h264.c b/drivers/media/platform/nvidia/tegra-vde/h264.c
index d8e5534e80c8..acc1b97f06ad 100644
--- a/drivers/media/platform/nvidia/tegra-vde/h264.c
+++ b/drivers/media/platform/nvidia/tegra-vde/h264.c
@@ -45,9 +45,9 @@ struct tegra_vde_h264_decoder_ctx {
 };
 
 struct h264_reflists {
-	u8 p[V4L2_H264_NUM_DPB_ENTRIES];
-	u8 b0[V4L2_H264_NUM_DPB_ENTRIES];
-	u8 b1[V4L2_H264_NUM_DPB_ENTRIES];
+	struct v4l2_h264_reference p[V4L2_H264_NUM_DPB_ENTRIES];
+	struct v4l2_h264_reference b0[V4L2_H264_NUM_DPB_ENTRIES];
+	struct v4l2_h264_reference b1[V4L2_H264_NUM_DPB_ENTRIES];
 };
 
 static int tegra_vde_wait_mbe(struct tegra_vde *vde)
@@ -768,7 +768,7 @@ static int tegra_vde_h264_setup_frames(struct tegra_ctx *ctx,
 	struct h264_reflists reflists;
 	struct vb2_buffer *ref;
 	unsigned int i;
-	u8 *dpb_id;
+	struct v4l2_h264_reference *dpb_id;
 	int err;
 
 	/*
@@ -811,14 +811,16 @@ static int tegra_vde_h264_setup_frames(struct tegra_ctx *ctx,
 	}
 
 	for (i = 0; i < b.num_valid; i++) {
-		ref = get_ref_buf(ctx, dst, dpb_id[i]);
+		int dpb_idx = dpb_id[i].index;
 
-		err = tegra_vde_h264_setup_frame(ctx, h264, &b, ref, dpb_id[i],
+		ref = get_ref_buf(ctx, dst, dpb_idx);
+
+		err = tegra_vde_h264_setup_frame(ctx, h264, &b, ref, dpb_idx,
 						 h264->dpb_frames_nb++);
 		if (err)
 			return err;
 
-		if (b.refs[dpb_id[i]].pic_order_count < b.cur_pic_order_count)
+		if (b.refs[dpb_idx].top_field_order_cnt < b.cur_pic_order_count)
 			h264->dpb_ref_frames_with_earlier_poc_nb++;
 	}
 
@@ -880,6 +882,9 @@ static int tegra_vde_h264_setup_context(struct tegra_ctx *ctx,
 	if (h->pps->flags & V4L2_H264_PPS_FLAG_ENTROPY_CODING_MODE)
 		return -EOPNOTSUPP;
 
+	if (h->decode_params->flags & V4L2_H264_DECODE_PARAM_FLAG_FIELD_PIC)
+		return -EOPNOTSUPP;
+
 	if (h->sps->profile_idc == 66)
 		h264->baseline_profile = 1;
 
diff --git a/drivers/media/v4l2-core/v4l2-h264.c b/drivers/media/v4l2-core/v4l2-h264.c
index ac47519a9fbe..afbfcf78efe4 100644
--- a/drivers/media/v4l2-core/v4l2-h264.c
+++ b/drivers/media/v4l2-core/v4l2-h264.c
@@ -75,12 +75,12 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b,
 			pic_order_count = dpb[i].top_field_order_cnt;
 
 		b->refs[i].pic_order_count = pic_order_count;
-		b->unordered_reflist[b->num_valid] = i;
+		b->unordered_reflist[b->num_valid].index = i;
 		b->num_valid++;
 	}
 
 	for (i = b->num_valid; i < ARRAY_SIZE(b->unordered_reflist); i++)
-		b->unordered_reflist[i] = i;
+		b->unordered_reflist[i].index = i;
 }
 EXPORT_SYMBOL_GPL(v4l2_h264_init_reflist_builder);
 
@@ -90,8 +90,8 @@ static int v4l2_h264_p_ref_list_cmp(const void *ptra, const void *ptrb,
 	const struct v4l2_h264_reflist_builder *builder = data;
 	u8 idxa, idxb;
 
-	idxa = *((u8 *)ptra);
-	idxb = *((u8 *)ptrb);
+	idxa = ((struct v4l2_h264_reference *)ptra)->index;
+	idxb = ((struct v4l2_h264_reference *)ptrb)->index;
 
 	if (WARN_ON(idxa >= V4L2_H264_NUM_DPB_ENTRIES ||
 		    idxb >= V4L2_H264_NUM_DPB_ENTRIES))
@@ -125,8 +125,8 @@ static int v4l2_h264_b0_ref_list_cmp(const void *ptra, const void *ptrb,
 	s32 poca, pocb;
 	u8 idxa, idxb;
 
-	idxa = *((u8 *)ptra);
-	idxb = *((u8 *)ptrb);
+	idxa = ((struct v4l2_h264_reference *)ptra)->index;
+	idxb = ((struct v4l2_h264_reference *)ptrb)->index;
 
 	if (WARN_ON(idxa >= V4L2_H264_NUM_DPB_ENTRIES ||
 		    idxb >= V4L2_H264_NUM_DPB_ENTRIES))
@@ -170,8 +170,8 @@ static int v4l2_h264_b1_ref_list_cmp(const void *ptra, const void *ptrb,
 	s32 poca, pocb;
 	u8 idxa, idxb;
 
-	idxa = *((u8 *)ptra);
-	idxb = *((u8 *)ptrb);
+	idxa = ((struct v4l2_h264_reference *)ptra)->index;
+	idxb = ((struct v4l2_h264_reference *)ptrb)->index;
 
 	if (WARN_ON(idxa >= V4L2_H264_NUM_DPB_ENTRIES ||
 		    idxb >= V4L2_H264_NUM_DPB_ENTRIES))
@@ -212,8 +212,8 @@ static int v4l2_h264_b1_ref_list_cmp(const void *ptra, const void *ptrb,
  * v4l2_h264_build_p_ref_list() - Build the P reference list
  *
  * @builder: reference list builder context
- * @reflist: 16-bytes array used to store the P reference list. Each entry
- *	     is an index in the DPB
+ * @reflist: 16 sized array used to store the P reference list. Each entry
+ *	     is a v4l2_h264_reference structure
  *
  * This functions builds the P reference lists. This procedure is describe in
  * section '8.2.4 Decoding process for reference picture lists construction'
@@ -222,7 +222,7 @@ static int v4l2_h264_b1_ref_list_cmp(const void *ptra, const void *ptrb,
  */
 void
 v4l2_h264_build_p_ref_list(const struct v4l2_h264_reflist_builder *builder,
-			   u8 *reflist)
+			   struct v4l2_h264_reference *reflist)
 {
 	memcpy(reflist, builder->unordered_reflist,
 	       sizeof(builder->unordered_reflist[0]) * builder->num_valid);
@@ -235,10 +235,10 @@ EXPORT_SYMBOL_GPL(v4l2_h264_build_p_ref_list);
  * v4l2_h264_build_b_ref_lists() - Build the B0/B1 reference lists
  *
  * @builder: reference list builder context
- * @b0_reflist: 16-bytes array used to store the B0 reference list. Each entry
- *		is an index in the DPB
- * @b1_reflist: 16-bytes array used to store the B1 reference list. Each entry
- *		is an index in the DPB
+ * @b0_reflist: 16 sized array used to store the B0 reference list. Each entry
+ *		is a v4l2_h264_reference structure
+ * @b1_reflist: 16 sized array used to store the B1 reference list. Each entry
+ *		is a v4l2_h264_reference structure
  *
  * This functions builds the B0/B1 reference lists. This procedure is described
  * in section '8.2.4 Decoding process for reference picture lists construction'
@@ -247,7 +247,8 @@ EXPORT_SYMBOL_GPL(v4l2_h264_build_p_ref_list);
  */
 void
 v4l2_h264_build_b_ref_lists(const struct v4l2_h264_reflist_builder *builder,
-			    u8 *b0_reflist, u8 *b1_reflist)
+			    struct v4l2_h264_reference *b0_reflist,
+			    struct v4l2_h264_reference *b1_reflist)
 {
 	memcpy(b0_reflist, builder->unordered_reflist,
 	       sizeof(builder->unordered_reflist[0]) * builder->num_valid);
diff --git a/drivers/staging/media/hantro/hantro_g1_h264_dec.c b/drivers/staging/media/hantro/hantro_g1_h264_dec.c
index f49dbfb8a843..9de7f05eff2a 100644
--- a/drivers/staging/media/hantro/hantro_g1_h264_dec.c
+++ b/drivers/staging/media/hantro/hantro_g1_h264_dec.c
@@ -126,7 +126,7 @@ static void set_params(struct hantro_ctx *ctx, struct vb2_v4l2_buffer *src_buf)
 
 static void set_ref(struct hantro_ctx *ctx)
 {
-	const u8 *b0_reflist, *b1_reflist, *p_reflist;
+	const struct v4l2_h264_reference *b0_reflist, *b1_reflist, *p_reflist;
 	struct hantro_dev *vpu = ctx->dev;
 	int reg_num;
 	u32 reg;
@@ -157,12 +157,12 @@ static void set_ref(struct hantro_ctx *ctx)
 	 */
 	reg_num = 0;
 	for (i = 0; i < 15; i += 3) {
-		reg = G1_REG_BD_REF_PIC_BINIT_RLIST_F0(b0_reflist[i]) |
-		      G1_REG_BD_REF_PIC_BINIT_RLIST_F1(b0_reflist[i + 1]) |
-		      G1_REG_BD_REF_PIC_BINIT_RLIST_F2(b0_reflist[i + 2]) |
-		      G1_REG_BD_REF_PIC_BINIT_RLIST_B0(b1_reflist[i]) |
-		      G1_REG_BD_REF_PIC_BINIT_RLIST_B1(b1_reflist[i + 1]) |
-		      G1_REG_BD_REF_PIC_BINIT_RLIST_B2(b1_reflist[i + 2]);
+		reg = G1_REG_BD_REF_PIC_BINIT_RLIST_F0(b0_reflist[i].index) |
+		      G1_REG_BD_REF_PIC_BINIT_RLIST_F1(b0_reflist[i + 1].index) |
+		      G1_REG_BD_REF_PIC_BINIT_RLIST_F2(b0_reflist[i + 2].index) |
+		      G1_REG_BD_REF_PIC_BINIT_RLIST_B0(b1_reflist[i].index) |
+		      G1_REG_BD_REF_PIC_BINIT_RLIST_B1(b1_reflist[i + 1].index) |
+		      G1_REG_BD_REF_PIC_BINIT_RLIST_B2(b1_reflist[i + 2].index);
 		vdpu_write_relaxed(vpu, reg, G1_REG_BD_REF_PIC(reg_num++));
 	}
 
@@ -171,12 +171,12 @@ static void set_ref(struct hantro_ctx *ctx)
 	 * of forward and backward reference picture lists and first 4 entries
 	 * of P forward picture list.
 	 */
-	reg = G1_REG_BD_P_REF_PIC_BINIT_RLIST_F15(b0_reflist[15]) |
-	      G1_REG_BD_P_REF_PIC_BINIT_RLIST_B15(b1_reflist[15]) |
-	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F0(p_reflist[0]) |
-	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F1(p_reflist[1]) |
-	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F2(p_reflist[2]) |
-	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F3(p_reflist[3]);
+	reg = G1_REG_BD_P_REF_PIC_BINIT_RLIST_F15(b0_reflist[15].index) |
+	      G1_REG_BD_P_REF_PIC_BINIT_RLIST_B15(b1_reflist[15].index) |
+	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F0(p_reflist[0].index) |
+	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F1(p_reflist[1].index) |
+	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F2(p_reflist[2].index) |
+	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F3(p_reflist[3].index);
 	vdpu_write_relaxed(vpu, reg, G1_REG_BD_P_REF_PIC);
 
 	/*
@@ -185,12 +185,12 @@ static void set_ref(struct hantro_ctx *ctx)
 	 */
 	reg_num = 0;
 	for (i = 4; i < HANTRO_H264_DPB_SIZE; i += 6) {
-		reg = G1_REG_FWD_PIC_PINIT_RLIST_F0(p_reflist[i]) |
-		      G1_REG_FWD_PIC_PINIT_RLIST_F1(p_reflist[i + 1]) |
-		      G1_REG_FWD_PIC_PINIT_RLIST_F2(p_reflist[i + 2]) |
-		      G1_REG_FWD_PIC_PINIT_RLIST_F3(p_reflist[i + 3]) |
-		      G1_REG_FWD_PIC_PINIT_RLIST_F4(p_reflist[i + 4]) |
-		      G1_REG_FWD_PIC_PINIT_RLIST_F5(p_reflist[i + 5]);
+		reg = G1_REG_FWD_PIC_PINIT_RLIST_F0(p_reflist[i].index) |
+		      G1_REG_FWD_PIC_PINIT_RLIST_F1(p_reflist[i + 1].index) |
+		      G1_REG_FWD_PIC_PINIT_RLIST_F2(p_reflist[i + 2].index) |
+		      G1_REG_FWD_PIC_PINIT_RLIST_F3(p_reflist[i + 3].index) |
+		      G1_REG_FWD_PIC_PINIT_RLIST_F4(p_reflist[i + 4].index) |
+		      G1_REG_FWD_PIC_PINIT_RLIST_F5(p_reflist[i + 5].index);
 		vdpu_write_relaxed(vpu, reg, G1_REG_FWD_PIC(reg_num++));
 	}
 
diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
index ed018e293ba0..2bc6b8f088f5 100644
--- a/drivers/staging/media/hantro/hantro_hw.h
+++ b/drivers/staging/media/hantro/hantro_hw.h
@@ -69,9 +69,9 @@ struct hantro_h264_dec_ctrls {
  * @b1:		B1 reflist
  */
 struct hantro_h264_dec_reflists {
-	u8 p[HANTRO_H264_DPB_SIZE];
-	u8 b0[HANTRO_H264_DPB_SIZE];
-	u8 b1[HANTRO_H264_DPB_SIZE];
+	struct v4l2_h264_reference p[HANTRO_H264_DPB_SIZE];
+	struct v4l2_h264_reference b0[HANTRO_H264_DPB_SIZE];
+	struct v4l2_h264_reference b1[HANTRO_H264_DPB_SIZE];
 };
 
 /**
diff --git a/drivers/staging/media/hantro/rockchip_vpu2_hw_h264_dec.c b/drivers/staging/media/hantro/rockchip_vpu2_hw_h264_dec.c
index 64a6330475eb..46c1a83bcc4e 100644
--- a/drivers/staging/media/hantro/rockchip_vpu2_hw_h264_dec.c
+++ b/drivers/staging/media/hantro/rockchip_vpu2_hw_h264_dec.c
@@ -298,7 +298,7 @@ static void set_params(struct hantro_ctx *ctx, struct vb2_v4l2_buffer *src_buf)
 
 static void set_ref(struct hantro_ctx *ctx)
 {
-	const u8 *b0_reflist, *b1_reflist, *p_reflist;
+	const struct v4l2_h264_reference *b0_reflist, *b1_reflist, *p_reflist;
 	struct hantro_dev *vpu = ctx->dev;
 	u32 reg;
 	int i;
@@ -307,20 +307,20 @@ static void set_ref(struct hantro_ctx *ctx)
 	b1_reflist = ctx->h264_dec.reflists.b1;
 	p_reflist = ctx->h264_dec.reflists.p;
 
-	reg = VDPU_REG_PINIT_RLIST_F9(p_reflist[9]) |
-	      VDPU_REG_PINIT_RLIST_F8(p_reflist[8]) |
-	      VDPU_REG_PINIT_RLIST_F7(p_reflist[7]) |
-	      VDPU_REG_PINIT_RLIST_F6(p_reflist[6]) |
-	      VDPU_REG_PINIT_RLIST_F5(p_reflist[5]) |
-	      VDPU_REG_PINIT_RLIST_F4(p_reflist[4]);
+	reg = VDPU_REG_PINIT_RLIST_F9(p_reflist[9].index) |
+	      VDPU_REG_PINIT_RLIST_F8(p_reflist[8].index) |
+	      VDPU_REG_PINIT_RLIST_F7(p_reflist[7].index) |
+	      VDPU_REG_PINIT_RLIST_F6(p_reflist[6].index) |
+	      VDPU_REG_PINIT_RLIST_F5(p_reflist[5].index) |
+	      VDPU_REG_PINIT_RLIST_F4(p_reflist[4].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(74));
 
-	reg = VDPU_REG_PINIT_RLIST_F15(p_reflist[15]) |
-	      VDPU_REG_PINIT_RLIST_F14(p_reflist[14]) |
-	      VDPU_REG_PINIT_RLIST_F13(p_reflist[13]) |
-	      VDPU_REG_PINIT_RLIST_F12(p_reflist[12]) |
-	      VDPU_REG_PINIT_RLIST_F11(p_reflist[11]) |
-	      VDPU_REG_PINIT_RLIST_F10(p_reflist[10]);
+	reg = VDPU_REG_PINIT_RLIST_F15(p_reflist[15].index) |
+	      VDPU_REG_PINIT_RLIST_F14(p_reflist[14].index) |
+	      VDPU_REG_PINIT_RLIST_F13(p_reflist[13].index) |
+	      VDPU_REG_PINIT_RLIST_F12(p_reflist[12].index) |
+	      VDPU_REG_PINIT_RLIST_F11(p_reflist[11].index) |
+	      VDPU_REG_PINIT_RLIST_F10(p_reflist[10].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(75));
 
 	reg = VDPU_REG_REFER1_NBR(hantro_h264_get_ref_nbr(ctx, 1)) |
@@ -355,54 +355,54 @@ static void set_ref(struct hantro_ctx *ctx)
 	      VDPU_REG_REFER14_NBR(hantro_h264_get_ref_nbr(ctx, 14));
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(83));
 
-	reg = VDPU_REG_BINIT_RLIST_F5(b0_reflist[5]) |
-	      VDPU_REG_BINIT_RLIST_F4(b0_reflist[4]) |
-	      VDPU_REG_BINIT_RLIST_F3(b0_reflist[3]) |
-	      VDPU_REG_BINIT_RLIST_F2(b0_reflist[2]) |
-	      VDPU_REG_BINIT_RLIST_F1(b0_reflist[1]) |
-	      VDPU_REG_BINIT_RLIST_F0(b0_reflist[0]);
+	reg = VDPU_REG_BINIT_RLIST_F5(b0_reflist[5].index) |
+	      VDPU_REG_BINIT_RLIST_F4(b0_reflist[4].index) |
+	      VDPU_REG_BINIT_RLIST_F3(b0_reflist[3].index) |
+	      VDPU_REG_BINIT_RLIST_F2(b0_reflist[2].index) |
+	      VDPU_REG_BINIT_RLIST_F1(b0_reflist[1].index) |
+	      VDPU_REG_BINIT_RLIST_F0(b0_reflist[0].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(100));
 
-	reg = VDPU_REG_BINIT_RLIST_F11(b0_reflist[11]) |
-	      VDPU_REG_BINIT_RLIST_F10(b0_reflist[10]) |
-	      VDPU_REG_BINIT_RLIST_F9(b0_reflist[9]) |
-	      VDPU_REG_BINIT_RLIST_F8(b0_reflist[8]) |
-	      VDPU_REG_BINIT_RLIST_F7(b0_reflist[7]) |
-	      VDPU_REG_BINIT_RLIST_F6(b0_reflist[6]);
+	reg = VDPU_REG_BINIT_RLIST_F11(b0_reflist[11].index) |
+	      VDPU_REG_BINIT_RLIST_F10(b0_reflist[10].index) |
+	      VDPU_REG_BINIT_RLIST_F9(b0_reflist[9].index) |
+	      VDPU_REG_BINIT_RLIST_F8(b0_reflist[8].index) |
+	      VDPU_REG_BINIT_RLIST_F7(b0_reflist[7].index) |
+	      VDPU_REG_BINIT_RLIST_F6(b0_reflist[6].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(101));
 
-	reg = VDPU_REG_BINIT_RLIST_F15(b0_reflist[15]) |
-	      VDPU_REG_BINIT_RLIST_F14(b0_reflist[14]) |
-	      VDPU_REG_BINIT_RLIST_F13(b0_reflist[13]) |
-	      VDPU_REG_BINIT_RLIST_F12(b0_reflist[12]);
+	reg = VDPU_REG_BINIT_RLIST_F15(b0_reflist[15].index) |
+	      VDPU_REG_BINIT_RLIST_F14(b0_reflist[14].index) |
+	      VDPU_REG_BINIT_RLIST_F13(b0_reflist[13].index) |
+	      VDPU_REG_BINIT_RLIST_F12(b0_reflist[12].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(102));
 
-	reg = VDPU_REG_BINIT_RLIST_B5(b1_reflist[5]) |
-	      VDPU_REG_BINIT_RLIST_B4(b1_reflist[4]) |
-	      VDPU_REG_BINIT_RLIST_B3(b1_reflist[3]) |
-	      VDPU_REG_BINIT_RLIST_B2(b1_reflist[2]) |
-	      VDPU_REG_BINIT_RLIST_B1(b1_reflist[1]) |
-	      VDPU_REG_BINIT_RLIST_B0(b1_reflist[0]);
+	reg = VDPU_REG_BINIT_RLIST_B5(b1_reflist[5].index) |
+	      VDPU_REG_BINIT_RLIST_B4(b1_reflist[4].index) |
+	      VDPU_REG_BINIT_RLIST_B3(b1_reflist[3].index) |
+	      VDPU_REG_BINIT_RLIST_B2(b1_reflist[2].index) |
+	      VDPU_REG_BINIT_RLIST_B1(b1_reflist[1].index) |
+	      VDPU_REG_BINIT_RLIST_B0(b1_reflist[0].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(103));
 
-	reg = VDPU_REG_BINIT_RLIST_B11(b1_reflist[11]) |
-	      VDPU_REG_BINIT_RLIST_B10(b1_reflist[10]) |
-	      VDPU_REG_BINIT_RLIST_B9(b1_reflist[9]) |
-	      VDPU_REG_BINIT_RLIST_B8(b1_reflist[8]) |
-	      VDPU_REG_BINIT_RLIST_B7(b1_reflist[7]) |
-	      VDPU_REG_BINIT_RLIST_B6(b1_reflist[6]);
+	reg = VDPU_REG_BINIT_RLIST_B11(b1_reflist[11].index) |
+	      VDPU_REG_BINIT_RLIST_B10(b1_reflist[10].index) |
+	      VDPU_REG_BINIT_RLIST_B9(b1_reflist[9].index) |
+	      VDPU_REG_BINIT_RLIST_B8(b1_reflist[8].index) |
+	      VDPU_REG_BINIT_RLIST_B7(b1_reflist[7].index) |
+	      VDPU_REG_BINIT_RLIST_B6(b1_reflist[6].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(104));
 
-	reg = VDPU_REG_BINIT_RLIST_B15(b1_reflist[15]) |
-	      VDPU_REG_BINIT_RLIST_B14(b1_reflist[14]) |
-	      VDPU_REG_BINIT_RLIST_B13(b1_reflist[13]) |
-	      VDPU_REG_BINIT_RLIST_B12(b1_reflist[12]);
+	reg = VDPU_REG_BINIT_RLIST_B15(b1_reflist[15].index) |
+	      VDPU_REG_BINIT_RLIST_B14(b1_reflist[14].index) |
+	      VDPU_REG_BINIT_RLIST_B13(b1_reflist[13].index) |
+	      VDPU_REG_BINIT_RLIST_B12(b1_reflist[12].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(105));
 
-	reg = VDPU_REG_PINIT_RLIST_F3(p_reflist[3]) |
-	      VDPU_REG_PINIT_RLIST_F2(p_reflist[2]) |
-	      VDPU_REG_PINIT_RLIST_F1(p_reflist[1]) |
-	      VDPU_REG_PINIT_RLIST_F0(p_reflist[0]);
+	reg = VDPU_REG_PINIT_RLIST_F3(p_reflist[3].index) |
+	      VDPU_REG_PINIT_RLIST_F2(p_reflist[2].index) |
+	      VDPU_REG_PINIT_RLIST_F1(p_reflist[1].index) |
+	      VDPU_REG_PINIT_RLIST_F0(p_reflist[0].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(106));
 
 	reg = VDPU_REG_REFER_LTERM_E(ctx->h264_dec.dpb_longterm);
diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
index 951e19231da2..3c7f3d87fab4 100644
--- a/drivers/staging/media/rkvdec/rkvdec-h264.c
+++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
@@ -100,9 +100,9 @@ struct rkvdec_h264_priv_tbl {
 #define RKVDEC_H264_DPB_SIZE 16
 
 struct rkvdec_h264_reflists {
-	u8 p[RKVDEC_H264_DPB_SIZE];
-	u8 b0[RKVDEC_H264_DPB_SIZE];
-	u8 b1[RKVDEC_H264_DPB_SIZE];
+	struct v4l2_h264_reference p[RKVDEC_H264_DPB_SIZE];
+	struct v4l2_h264_reference b0[RKVDEC_H264_DPB_SIZE];
+	struct v4l2_h264_reference b1[RKVDEC_H264_DPB_SIZE];
 	u8 num_valid;
 };
 
@@ -767,13 +767,13 @@ static void assemble_hw_rps(struct rkvdec_ctx *ctx,
 
 			switch (j) {
 			case 0:
-				idx = h264_ctx->reflists.p[i];
+				idx = h264_ctx->reflists.p[i].index;
 				break;
 			case 1:
-				idx = h264_ctx->reflists.b0[i];
+				idx = h264_ctx->reflists.b0[i].index;
 				break;
 			case 2:
-				idx = h264_ctx->reflists.b1[i];
+				idx = h264_ctx->reflists.b1[i].index;
 				break;
 			}
 
diff --git a/include/media/v4l2-h264.h b/include/media/v4l2-h264.h
index 4b1c71c935e0..ef9a894e3c32 100644
--- a/include/media/v4l2-h264.h
+++ b/include/media/v4l2-h264.h
@@ -37,7 +37,7 @@ struct v4l2_h264_reflist_builder {
 		u16 longterm : 1;
 	} refs[V4L2_H264_NUM_DPB_ENTRIES];
 	s32 cur_pic_order_count;
-	u8 unordered_reflist[V4L2_H264_NUM_DPB_ENTRIES];
+	struct v4l2_h264_reference unordered_reflist[V4L2_H264_NUM_DPB_ENTRIES];
 	u8 num_valid;
 };
 
@@ -51,10 +51,10 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b,
  * v4l2_h264_build_b_ref_lists() - Build the B0/B1 reference lists
  *
  * @builder: reference list builder context
- * @b0_reflist: 16-bytes array used to store the B0 reference list. Each entry
- *		is an index in the DPB
- * @b1_reflist: 16-bytes array used to store the B1 reference list. Each entry
- *		is an index in the DPB
+ * @b0_reflist: 16 sized array used to store the B0 reference list. Each entry
+ *		is a v4l2_h264_reference structure
+ * @b1_reflist: 16 sized array used to store the B1 reference list. Each entry
+ *		is a v4l2_h264_reference structure
  *
  * This functions builds the B0/B1 reference lists. This procedure is described
  * in section '8.2.4 Decoding process for reference picture lists construction'
@@ -63,14 +63,15 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b,
  */
 void
 v4l2_h264_build_b_ref_lists(const struct v4l2_h264_reflist_builder *builder,
-			    u8 *b0_reflist, u8 *b1_reflist);
+			    struct v4l2_h264_reference *b0_reflist,
+			    struct v4l2_h264_reference *b1_reflist);
 
 /**
  * v4l2_h264_build_p_ref_list() - Build the P reference list
  *
  * @builder: reference list builder context
- * @reflist: 16-bytes array used to store the P reference list. Each entry
- *	     is an index in the DPB
+ * @reflist: 16 sized array used to store the P reference list. Each entry
+ *	     is a v4l2_h264_reference structure
  *
  * This functions builds the P reference lists. This procedure is describe in
  * section '8.2.4 Decoding process for reference picture lists construction'
@@ -79,6 +80,6 @@ v4l2_h264_build_b_ref_lists(const struct v4l2_h264_reflist_builder *builder,
  */
 void
 v4l2_h264_build_p_ref_list(const struct v4l2_h264_reflist_builder *builder,
-			   u8 *reflist);
+			   struct v4l2_h264_reference *reflist);
 
 #endif /* _MEDIA_V4L2_H264_H */
-- 
2.34.1


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^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 05/24] media: h264: Use v4l2_h264_reference for reflist
@ 2022-04-26 12:57   ` Nicolas Dufresne
  0 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab,
	Dmitry Osipenko, Thierry Reding, Jonathan Hunter,
	Ezequiel Garcia, Philipp Zabel, Greg Kroah-Hartman,
	Heiko Stuebner, Matthias Brugger
  Cc: nicolas, linux-media, linux-kernel, linux-tegra, linux-rockchip,
	linux-staging, linux-arm-kernel, linux-mediatek

In preparation for adding field decoding support, convert the byte arrays
for reflist into array of struct v4l2_h264_reference. That struct will
allow us to mark which field of the reference picture is being referenced.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
---
 .../mediatek/vcodec/vdec/vdec_h264_req_if.c   | 36 +++++--
 .../media/platform/nvidia/tegra-vde/h264.c    | 19 ++--
 drivers/media/v4l2-core/v4l2-h264.c           | 33 ++++---
 .../staging/media/hantro/hantro_g1_h264_dec.c | 38 +++----
 drivers/staging/media/hantro/hantro_hw.h      |  6 +-
 .../media/hantro/rockchip_vpu2_hw_h264_dec.c  | 98 +++++++++----------
 drivers/staging/media/rkvdec/rkvdec-h264.c    | 12 +--
 include/media/v4l2-h264.h                     | 19 ++--
 8 files changed, 143 insertions(+), 118 deletions(-)

diff --git a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c
index 43542de11e9c..8e59cf5c05a0 100644
--- a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c
+++ b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c
@@ -439,11 +439,24 @@ static void update_dpb(const struct v4l2_ctrl_h264_decode_params *dec_param,
 	}
 }
 
-/*
- * The firmware expects unused reflist entries to have the value 0x20.
- */
-static void fixup_ref_list(u8 *ref_list, size_t num_valid)
+static void get_ref_list(u8 *ref_list,
+			 const struct v4l2_h264_reference *v4l2_ref_list,
+			 int num_valid)
 {
+	u32 i;
+
+	/*
+	 * TODO The firmware does not support field decoding. Future
+	 * implementation must use v4l2_ref_list[i].fields to obtain
+	 * the reference field parity.
+	 */
+
+	for (i = 0; i < num_valid; i++)
+		ref_list[i] = v4l2_ref_list[i].index;
+
+	/*
+	 * The firmware expects unused reflist entries to have the value 0x20.
+	 */
 	memset(&ref_list[num_valid], 0x20, 32 - num_valid);
 }
 
@@ -459,6 +472,9 @@ static void get_vdec_decode_parameters(struct vdec_h264_slice_inst *inst)
 		get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_SCALING_MATRIX);
 	struct mtk_h264_dec_slice_param *slice_param = &inst->h264_slice_param;
 	struct v4l2_h264_reflist_builder reflist_builder;
+	struct v4l2_h264_reference v4l2_p0_reflist[V4L2_H264_REF_LIST_LEN];
+	struct v4l2_h264_reference v4l2_b0_reflist[V4L2_H264_REF_LIST_LEN];
+	struct v4l2_h264_reference v4l2_b1_reflist[V4L2_H264_REF_LIST_LEN];
 	u8 *p0_reflist = slice_param->decode_params.ref_pic_list_p0;
 	u8 *b0_reflist = slice_param->decode_params.ref_pic_list_b0;
 	u8 *b1_reflist = slice_param->decode_params.ref_pic_list_b1;
@@ -475,12 +491,14 @@ static void get_vdec_decode_parameters(struct vdec_h264_slice_inst *inst)
 	/* Build the reference lists */
 	v4l2_h264_init_reflist_builder(&reflist_builder, dec_params, sps,
 				       inst->dpb);
-	v4l2_h264_build_p_ref_list(&reflist_builder, p0_reflist);
-	v4l2_h264_build_b_ref_lists(&reflist_builder, b0_reflist, b1_reflist);
+	v4l2_h264_build_p_ref_list(&reflist_builder, v4l2_p0_reflist);
+	v4l2_h264_build_b_ref_lists(&reflist_builder, v4l2_b0_reflist,
+				    v4l2_b1_reflist);
+
 	/* Adapt the built lists to the firmware's expectations */
-	fixup_ref_list(p0_reflist, reflist_builder.num_valid);
-	fixup_ref_list(b0_reflist, reflist_builder.num_valid);
-	fixup_ref_list(b1_reflist, reflist_builder.num_valid);
+	get_ref_list(p0_reflist, v4l2_p0_reflist, reflist_builder.num_valid);
+	get_ref_list(b0_reflist, v4l2_b0_reflist, reflist_builder.num_valid);
+	get_ref_list(b1_reflist, v4l2_b1_reflist, reflist_builder.num_valid);
 
 	memcpy(&inst->vsi_ctx.h264_slice_params, slice_param,
 	       sizeof(inst->vsi_ctx.h264_slice_params));
diff --git a/drivers/media/platform/nvidia/tegra-vde/h264.c b/drivers/media/platform/nvidia/tegra-vde/h264.c
index d8e5534e80c8..acc1b97f06ad 100644
--- a/drivers/media/platform/nvidia/tegra-vde/h264.c
+++ b/drivers/media/platform/nvidia/tegra-vde/h264.c
@@ -45,9 +45,9 @@ struct tegra_vde_h264_decoder_ctx {
 };
 
 struct h264_reflists {
-	u8 p[V4L2_H264_NUM_DPB_ENTRIES];
-	u8 b0[V4L2_H264_NUM_DPB_ENTRIES];
-	u8 b1[V4L2_H264_NUM_DPB_ENTRIES];
+	struct v4l2_h264_reference p[V4L2_H264_NUM_DPB_ENTRIES];
+	struct v4l2_h264_reference b0[V4L2_H264_NUM_DPB_ENTRIES];
+	struct v4l2_h264_reference b1[V4L2_H264_NUM_DPB_ENTRIES];
 };
 
 static int tegra_vde_wait_mbe(struct tegra_vde *vde)
@@ -768,7 +768,7 @@ static int tegra_vde_h264_setup_frames(struct tegra_ctx *ctx,
 	struct h264_reflists reflists;
 	struct vb2_buffer *ref;
 	unsigned int i;
-	u8 *dpb_id;
+	struct v4l2_h264_reference *dpb_id;
 	int err;
 
 	/*
@@ -811,14 +811,16 @@ static int tegra_vde_h264_setup_frames(struct tegra_ctx *ctx,
 	}
 
 	for (i = 0; i < b.num_valid; i++) {
-		ref = get_ref_buf(ctx, dst, dpb_id[i]);
+		int dpb_idx = dpb_id[i].index;
 
-		err = tegra_vde_h264_setup_frame(ctx, h264, &b, ref, dpb_id[i],
+		ref = get_ref_buf(ctx, dst, dpb_idx);
+
+		err = tegra_vde_h264_setup_frame(ctx, h264, &b, ref, dpb_idx,
 						 h264->dpb_frames_nb++);
 		if (err)
 			return err;
 
-		if (b.refs[dpb_id[i]].pic_order_count < b.cur_pic_order_count)
+		if (b.refs[dpb_idx].top_field_order_cnt < b.cur_pic_order_count)
 			h264->dpb_ref_frames_with_earlier_poc_nb++;
 	}
 
@@ -880,6 +882,9 @@ static int tegra_vde_h264_setup_context(struct tegra_ctx *ctx,
 	if (h->pps->flags & V4L2_H264_PPS_FLAG_ENTROPY_CODING_MODE)
 		return -EOPNOTSUPP;
 
+	if (h->decode_params->flags & V4L2_H264_DECODE_PARAM_FLAG_FIELD_PIC)
+		return -EOPNOTSUPP;
+
 	if (h->sps->profile_idc == 66)
 		h264->baseline_profile = 1;
 
diff --git a/drivers/media/v4l2-core/v4l2-h264.c b/drivers/media/v4l2-core/v4l2-h264.c
index ac47519a9fbe..afbfcf78efe4 100644
--- a/drivers/media/v4l2-core/v4l2-h264.c
+++ b/drivers/media/v4l2-core/v4l2-h264.c
@@ -75,12 +75,12 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b,
 			pic_order_count = dpb[i].top_field_order_cnt;
 
 		b->refs[i].pic_order_count = pic_order_count;
-		b->unordered_reflist[b->num_valid] = i;
+		b->unordered_reflist[b->num_valid].index = i;
 		b->num_valid++;
 	}
 
 	for (i = b->num_valid; i < ARRAY_SIZE(b->unordered_reflist); i++)
-		b->unordered_reflist[i] = i;
+		b->unordered_reflist[i].index = i;
 }
 EXPORT_SYMBOL_GPL(v4l2_h264_init_reflist_builder);
 
@@ -90,8 +90,8 @@ static int v4l2_h264_p_ref_list_cmp(const void *ptra, const void *ptrb,
 	const struct v4l2_h264_reflist_builder *builder = data;
 	u8 idxa, idxb;
 
-	idxa = *((u8 *)ptra);
-	idxb = *((u8 *)ptrb);
+	idxa = ((struct v4l2_h264_reference *)ptra)->index;
+	idxb = ((struct v4l2_h264_reference *)ptrb)->index;
 
 	if (WARN_ON(idxa >= V4L2_H264_NUM_DPB_ENTRIES ||
 		    idxb >= V4L2_H264_NUM_DPB_ENTRIES))
@@ -125,8 +125,8 @@ static int v4l2_h264_b0_ref_list_cmp(const void *ptra, const void *ptrb,
 	s32 poca, pocb;
 	u8 idxa, idxb;
 
-	idxa = *((u8 *)ptra);
-	idxb = *((u8 *)ptrb);
+	idxa = ((struct v4l2_h264_reference *)ptra)->index;
+	idxb = ((struct v4l2_h264_reference *)ptrb)->index;
 
 	if (WARN_ON(idxa >= V4L2_H264_NUM_DPB_ENTRIES ||
 		    idxb >= V4L2_H264_NUM_DPB_ENTRIES))
@@ -170,8 +170,8 @@ static int v4l2_h264_b1_ref_list_cmp(const void *ptra, const void *ptrb,
 	s32 poca, pocb;
 	u8 idxa, idxb;
 
-	idxa = *((u8 *)ptra);
-	idxb = *((u8 *)ptrb);
+	idxa = ((struct v4l2_h264_reference *)ptra)->index;
+	idxb = ((struct v4l2_h264_reference *)ptrb)->index;
 
 	if (WARN_ON(idxa >= V4L2_H264_NUM_DPB_ENTRIES ||
 		    idxb >= V4L2_H264_NUM_DPB_ENTRIES))
@@ -212,8 +212,8 @@ static int v4l2_h264_b1_ref_list_cmp(const void *ptra, const void *ptrb,
  * v4l2_h264_build_p_ref_list() - Build the P reference list
  *
  * @builder: reference list builder context
- * @reflist: 16-bytes array used to store the P reference list. Each entry
- *	     is an index in the DPB
+ * @reflist: 16 sized array used to store the P reference list. Each entry
+ *	     is a v4l2_h264_reference structure
  *
  * This functions builds the P reference lists. This procedure is describe in
  * section '8.2.4 Decoding process for reference picture lists construction'
@@ -222,7 +222,7 @@ static int v4l2_h264_b1_ref_list_cmp(const void *ptra, const void *ptrb,
  */
 void
 v4l2_h264_build_p_ref_list(const struct v4l2_h264_reflist_builder *builder,
-			   u8 *reflist)
+			   struct v4l2_h264_reference *reflist)
 {
 	memcpy(reflist, builder->unordered_reflist,
 	       sizeof(builder->unordered_reflist[0]) * builder->num_valid);
@@ -235,10 +235,10 @@ EXPORT_SYMBOL_GPL(v4l2_h264_build_p_ref_list);
  * v4l2_h264_build_b_ref_lists() - Build the B0/B1 reference lists
  *
  * @builder: reference list builder context
- * @b0_reflist: 16-bytes array used to store the B0 reference list. Each entry
- *		is an index in the DPB
- * @b1_reflist: 16-bytes array used to store the B1 reference list. Each entry
- *		is an index in the DPB
+ * @b0_reflist: 16 sized array used to store the B0 reference list. Each entry
+ *		is a v4l2_h264_reference structure
+ * @b1_reflist: 16 sized array used to store the B1 reference list. Each entry
+ *		is a v4l2_h264_reference structure
  *
  * This functions builds the B0/B1 reference lists. This procedure is described
  * in section '8.2.4 Decoding process for reference picture lists construction'
@@ -247,7 +247,8 @@ EXPORT_SYMBOL_GPL(v4l2_h264_build_p_ref_list);
  */
 void
 v4l2_h264_build_b_ref_lists(const struct v4l2_h264_reflist_builder *builder,
-			    u8 *b0_reflist, u8 *b1_reflist)
+			    struct v4l2_h264_reference *b0_reflist,
+			    struct v4l2_h264_reference *b1_reflist)
 {
 	memcpy(b0_reflist, builder->unordered_reflist,
 	       sizeof(builder->unordered_reflist[0]) * builder->num_valid);
diff --git a/drivers/staging/media/hantro/hantro_g1_h264_dec.c b/drivers/staging/media/hantro/hantro_g1_h264_dec.c
index f49dbfb8a843..9de7f05eff2a 100644
--- a/drivers/staging/media/hantro/hantro_g1_h264_dec.c
+++ b/drivers/staging/media/hantro/hantro_g1_h264_dec.c
@@ -126,7 +126,7 @@ static void set_params(struct hantro_ctx *ctx, struct vb2_v4l2_buffer *src_buf)
 
 static void set_ref(struct hantro_ctx *ctx)
 {
-	const u8 *b0_reflist, *b1_reflist, *p_reflist;
+	const struct v4l2_h264_reference *b0_reflist, *b1_reflist, *p_reflist;
 	struct hantro_dev *vpu = ctx->dev;
 	int reg_num;
 	u32 reg;
@@ -157,12 +157,12 @@ static void set_ref(struct hantro_ctx *ctx)
 	 */
 	reg_num = 0;
 	for (i = 0; i < 15; i += 3) {
-		reg = G1_REG_BD_REF_PIC_BINIT_RLIST_F0(b0_reflist[i]) |
-		      G1_REG_BD_REF_PIC_BINIT_RLIST_F1(b0_reflist[i + 1]) |
-		      G1_REG_BD_REF_PIC_BINIT_RLIST_F2(b0_reflist[i + 2]) |
-		      G1_REG_BD_REF_PIC_BINIT_RLIST_B0(b1_reflist[i]) |
-		      G1_REG_BD_REF_PIC_BINIT_RLIST_B1(b1_reflist[i + 1]) |
-		      G1_REG_BD_REF_PIC_BINIT_RLIST_B2(b1_reflist[i + 2]);
+		reg = G1_REG_BD_REF_PIC_BINIT_RLIST_F0(b0_reflist[i].index) |
+		      G1_REG_BD_REF_PIC_BINIT_RLIST_F1(b0_reflist[i + 1].index) |
+		      G1_REG_BD_REF_PIC_BINIT_RLIST_F2(b0_reflist[i + 2].index) |
+		      G1_REG_BD_REF_PIC_BINIT_RLIST_B0(b1_reflist[i].index) |
+		      G1_REG_BD_REF_PIC_BINIT_RLIST_B1(b1_reflist[i + 1].index) |
+		      G1_REG_BD_REF_PIC_BINIT_RLIST_B2(b1_reflist[i + 2].index);
 		vdpu_write_relaxed(vpu, reg, G1_REG_BD_REF_PIC(reg_num++));
 	}
 
@@ -171,12 +171,12 @@ static void set_ref(struct hantro_ctx *ctx)
 	 * of forward and backward reference picture lists and first 4 entries
 	 * of P forward picture list.
 	 */
-	reg = G1_REG_BD_P_REF_PIC_BINIT_RLIST_F15(b0_reflist[15]) |
-	      G1_REG_BD_P_REF_PIC_BINIT_RLIST_B15(b1_reflist[15]) |
-	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F0(p_reflist[0]) |
-	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F1(p_reflist[1]) |
-	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F2(p_reflist[2]) |
-	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F3(p_reflist[3]);
+	reg = G1_REG_BD_P_REF_PIC_BINIT_RLIST_F15(b0_reflist[15].index) |
+	      G1_REG_BD_P_REF_PIC_BINIT_RLIST_B15(b1_reflist[15].index) |
+	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F0(p_reflist[0].index) |
+	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F1(p_reflist[1].index) |
+	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F2(p_reflist[2].index) |
+	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F3(p_reflist[3].index);
 	vdpu_write_relaxed(vpu, reg, G1_REG_BD_P_REF_PIC);
 
 	/*
@@ -185,12 +185,12 @@ static void set_ref(struct hantro_ctx *ctx)
 	 */
 	reg_num = 0;
 	for (i = 4; i < HANTRO_H264_DPB_SIZE; i += 6) {
-		reg = G1_REG_FWD_PIC_PINIT_RLIST_F0(p_reflist[i]) |
-		      G1_REG_FWD_PIC_PINIT_RLIST_F1(p_reflist[i + 1]) |
-		      G1_REG_FWD_PIC_PINIT_RLIST_F2(p_reflist[i + 2]) |
-		      G1_REG_FWD_PIC_PINIT_RLIST_F3(p_reflist[i + 3]) |
-		      G1_REG_FWD_PIC_PINIT_RLIST_F4(p_reflist[i + 4]) |
-		      G1_REG_FWD_PIC_PINIT_RLIST_F5(p_reflist[i + 5]);
+		reg = G1_REG_FWD_PIC_PINIT_RLIST_F0(p_reflist[i].index) |
+		      G1_REG_FWD_PIC_PINIT_RLIST_F1(p_reflist[i + 1].index) |
+		      G1_REG_FWD_PIC_PINIT_RLIST_F2(p_reflist[i + 2].index) |
+		      G1_REG_FWD_PIC_PINIT_RLIST_F3(p_reflist[i + 3].index) |
+		      G1_REG_FWD_PIC_PINIT_RLIST_F4(p_reflist[i + 4].index) |
+		      G1_REG_FWD_PIC_PINIT_RLIST_F5(p_reflist[i + 5].index);
 		vdpu_write_relaxed(vpu, reg, G1_REG_FWD_PIC(reg_num++));
 	}
 
diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
index ed018e293ba0..2bc6b8f088f5 100644
--- a/drivers/staging/media/hantro/hantro_hw.h
+++ b/drivers/staging/media/hantro/hantro_hw.h
@@ -69,9 +69,9 @@ struct hantro_h264_dec_ctrls {
  * @b1:		B1 reflist
  */
 struct hantro_h264_dec_reflists {
-	u8 p[HANTRO_H264_DPB_SIZE];
-	u8 b0[HANTRO_H264_DPB_SIZE];
-	u8 b1[HANTRO_H264_DPB_SIZE];
+	struct v4l2_h264_reference p[HANTRO_H264_DPB_SIZE];
+	struct v4l2_h264_reference b0[HANTRO_H264_DPB_SIZE];
+	struct v4l2_h264_reference b1[HANTRO_H264_DPB_SIZE];
 };
 
 /**
diff --git a/drivers/staging/media/hantro/rockchip_vpu2_hw_h264_dec.c b/drivers/staging/media/hantro/rockchip_vpu2_hw_h264_dec.c
index 64a6330475eb..46c1a83bcc4e 100644
--- a/drivers/staging/media/hantro/rockchip_vpu2_hw_h264_dec.c
+++ b/drivers/staging/media/hantro/rockchip_vpu2_hw_h264_dec.c
@@ -298,7 +298,7 @@ static void set_params(struct hantro_ctx *ctx, struct vb2_v4l2_buffer *src_buf)
 
 static void set_ref(struct hantro_ctx *ctx)
 {
-	const u8 *b0_reflist, *b1_reflist, *p_reflist;
+	const struct v4l2_h264_reference *b0_reflist, *b1_reflist, *p_reflist;
 	struct hantro_dev *vpu = ctx->dev;
 	u32 reg;
 	int i;
@@ -307,20 +307,20 @@ static void set_ref(struct hantro_ctx *ctx)
 	b1_reflist = ctx->h264_dec.reflists.b1;
 	p_reflist = ctx->h264_dec.reflists.p;
 
-	reg = VDPU_REG_PINIT_RLIST_F9(p_reflist[9]) |
-	      VDPU_REG_PINIT_RLIST_F8(p_reflist[8]) |
-	      VDPU_REG_PINIT_RLIST_F7(p_reflist[7]) |
-	      VDPU_REG_PINIT_RLIST_F6(p_reflist[6]) |
-	      VDPU_REG_PINIT_RLIST_F5(p_reflist[5]) |
-	      VDPU_REG_PINIT_RLIST_F4(p_reflist[4]);
+	reg = VDPU_REG_PINIT_RLIST_F9(p_reflist[9].index) |
+	      VDPU_REG_PINIT_RLIST_F8(p_reflist[8].index) |
+	      VDPU_REG_PINIT_RLIST_F7(p_reflist[7].index) |
+	      VDPU_REG_PINIT_RLIST_F6(p_reflist[6].index) |
+	      VDPU_REG_PINIT_RLIST_F5(p_reflist[5].index) |
+	      VDPU_REG_PINIT_RLIST_F4(p_reflist[4].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(74));
 
-	reg = VDPU_REG_PINIT_RLIST_F15(p_reflist[15]) |
-	      VDPU_REG_PINIT_RLIST_F14(p_reflist[14]) |
-	      VDPU_REG_PINIT_RLIST_F13(p_reflist[13]) |
-	      VDPU_REG_PINIT_RLIST_F12(p_reflist[12]) |
-	      VDPU_REG_PINIT_RLIST_F11(p_reflist[11]) |
-	      VDPU_REG_PINIT_RLIST_F10(p_reflist[10]);
+	reg = VDPU_REG_PINIT_RLIST_F15(p_reflist[15].index) |
+	      VDPU_REG_PINIT_RLIST_F14(p_reflist[14].index) |
+	      VDPU_REG_PINIT_RLIST_F13(p_reflist[13].index) |
+	      VDPU_REG_PINIT_RLIST_F12(p_reflist[12].index) |
+	      VDPU_REG_PINIT_RLIST_F11(p_reflist[11].index) |
+	      VDPU_REG_PINIT_RLIST_F10(p_reflist[10].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(75));
 
 	reg = VDPU_REG_REFER1_NBR(hantro_h264_get_ref_nbr(ctx, 1)) |
@@ -355,54 +355,54 @@ static void set_ref(struct hantro_ctx *ctx)
 	      VDPU_REG_REFER14_NBR(hantro_h264_get_ref_nbr(ctx, 14));
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(83));
 
-	reg = VDPU_REG_BINIT_RLIST_F5(b0_reflist[5]) |
-	      VDPU_REG_BINIT_RLIST_F4(b0_reflist[4]) |
-	      VDPU_REG_BINIT_RLIST_F3(b0_reflist[3]) |
-	      VDPU_REG_BINIT_RLIST_F2(b0_reflist[2]) |
-	      VDPU_REG_BINIT_RLIST_F1(b0_reflist[1]) |
-	      VDPU_REG_BINIT_RLIST_F0(b0_reflist[0]);
+	reg = VDPU_REG_BINIT_RLIST_F5(b0_reflist[5].index) |
+	      VDPU_REG_BINIT_RLIST_F4(b0_reflist[4].index) |
+	      VDPU_REG_BINIT_RLIST_F3(b0_reflist[3].index) |
+	      VDPU_REG_BINIT_RLIST_F2(b0_reflist[2].index) |
+	      VDPU_REG_BINIT_RLIST_F1(b0_reflist[1].index) |
+	      VDPU_REG_BINIT_RLIST_F0(b0_reflist[0].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(100));
 
-	reg = VDPU_REG_BINIT_RLIST_F11(b0_reflist[11]) |
-	      VDPU_REG_BINIT_RLIST_F10(b0_reflist[10]) |
-	      VDPU_REG_BINIT_RLIST_F9(b0_reflist[9]) |
-	      VDPU_REG_BINIT_RLIST_F8(b0_reflist[8]) |
-	      VDPU_REG_BINIT_RLIST_F7(b0_reflist[7]) |
-	      VDPU_REG_BINIT_RLIST_F6(b0_reflist[6]);
+	reg = VDPU_REG_BINIT_RLIST_F11(b0_reflist[11].index) |
+	      VDPU_REG_BINIT_RLIST_F10(b0_reflist[10].index) |
+	      VDPU_REG_BINIT_RLIST_F9(b0_reflist[9].index) |
+	      VDPU_REG_BINIT_RLIST_F8(b0_reflist[8].index) |
+	      VDPU_REG_BINIT_RLIST_F7(b0_reflist[7].index) |
+	      VDPU_REG_BINIT_RLIST_F6(b0_reflist[6].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(101));
 
-	reg = VDPU_REG_BINIT_RLIST_F15(b0_reflist[15]) |
-	      VDPU_REG_BINIT_RLIST_F14(b0_reflist[14]) |
-	      VDPU_REG_BINIT_RLIST_F13(b0_reflist[13]) |
-	      VDPU_REG_BINIT_RLIST_F12(b0_reflist[12]);
+	reg = VDPU_REG_BINIT_RLIST_F15(b0_reflist[15].index) |
+	      VDPU_REG_BINIT_RLIST_F14(b0_reflist[14].index) |
+	      VDPU_REG_BINIT_RLIST_F13(b0_reflist[13].index) |
+	      VDPU_REG_BINIT_RLIST_F12(b0_reflist[12].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(102));
 
-	reg = VDPU_REG_BINIT_RLIST_B5(b1_reflist[5]) |
-	      VDPU_REG_BINIT_RLIST_B4(b1_reflist[4]) |
-	      VDPU_REG_BINIT_RLIST_B3(b1_reflist[3]) |
-	      VDPU_REG_BINIT_RLIST_B2(b1_reflist[2]) |
-	      VDPU_REG_BINIT_RLIST_B1(b1_reflist[1]) |
-	      VDPU_REG_BINIT_RLIST_B0(b1_reflist[0]);
+	reg = VDPU_REG_BINIT_RLIST_B5(b1_reflist[5].index) |
+	      VDPU_REG_BINIT_RLIST_B4(b1_reflist[4].index) |
+	      VDPU_REG_BINIT_RLIST_B3(b1_reflist[3].index) |
+	      VDPU_REG_BINIT_RLIST_B2(b1_reflist[2].index) |
+	      VDPU_REG_BINIT_RLIST_B1(b1_reflist[1].index) |
+	      VDPU_REG_BINIT_RLIST_B0(b1_reflist[0].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(103));
 
-	reg = VDPU_REG_BINIT_RLIST_B11(b1_reflist[11]) |
-	      VDPU_REG_BINIT_RLIST_B10(b1_reflist[10]) |
-	      VDPU_REG_BINIT_RLIST_B9(b1_reflist[9]) |
-	      VDPU_REG_BINIT_RLIST_B8(b1_reflist[8]) |
-	      VDPU_REG_BINIT_RLIST_B7(b1_reflist[7]) |
-	      VDPU_REG_BINIT_RLIST_B6(b1_reflist[6]);
+	reg = VDPU_REG_BINIT_RLIST_B11(b1_reflist[11].index) |
+	      VDPU_REG_BINIT_RLIST_B10(b1_reflist[10].index) |
+	      VDPU_REG_BINIT_RLIST_B9(b1_reflist[9].index) |
+	      VDPU_REG_BINIT_RLIST_B8(b1_reflist[8].index) |
+	      VDPU_REG_BINIT_RLIST_B7(b1_reflist[7].index) |
+	      VDPU_REG_BINIT_RLIST_B6(b1_reflist[6].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(104));
 
-	reg = VDPU_REG_BINIT_RLIST_B15(b1_reflist[15]) |
-	      VDPU_REG_BINIT_RLIST_B14(b1_reflist[14]) |
-	      VDPU_REG_BINIT_RLIST_B13(b1_reflist[13]) |
-	      VDPU_REG_BINIT_RLIST_B12(b1_reflist[12]);
+	reg = VDPU_REG_BINIT_RLIST_B15(b1_reflist[15].index) |
+	      VDPU_REG_BINIT_RLIST_B14(b1_reflist[14].index) |
+	      VDPU_REG_BINIT_RLIST_B13(b1_reflist[13].index) |
+	      VDPU_REG_BINIT_RLIST_B12(b1_reflist[12].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(105));
 
-	reg = VDPU_REG_PINIT_RLIST_F3(p_reflist[3]) |
-	      VDPU_REG_PINIT_RLIST_F2(p_reflist[2]) |
-	      VDPU_REG_PINIT_RLIST_F1(p_reflist[1]) |
-	      VDPU_REG_PINIT_RLIST_F0(p_reflist[0]);
+	reg = VDPU_REG_PINIT_RLIST_F3(p_reflist[3].index) |
+	      VDPU_REG_PINIT_RLIST_F2(p_reflist[2].index) |
+	      VDPU_REG_PINIT_RLIST_F1(p_reflist[1].index) |
+	      VDPU_REG_PINIT_RLIST_F0(p_reflist[0].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(106));
 
 	reg = VDPU_REG_REFER_LTERM_E(ctx->h264_dec.dpb_longterm);
diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
index 951e19231da2..3c7f3d87fab4 100644
--- a/drivers/staging/media/rkvdec/rkvdec-h264.c
+++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
@@ -100,9 +100,9 @@ struct rkvdec_h264_priv_tbl {
 #define RKVDEC_H264_DPB_SIZE 16
 
 struct rkvdec_h264_reflists {
-	u8 p[RKVDEC_H264_DPB_SIZE];
-	u8 b0[RKVDEC_H264_DPB_SIZE];
-	u8 b1[RKVDEC_H264_DPB_SIZE];
+	struct v4l2_h264_reference p[RKVDEC_H264_DPB_SIZE];
+	struct v4l2_h264_reference b0[RKVDEC_H264_DPB_SIZE];
+	struct v4l2_h264_reference b1[RKVDEC_H264_DPB_SIZE];
 	u8 num_valid;
 };
 
@@ -767,13 +767,13 @@ static void assemble_hw_rps(struct rkvdec_ctx *ctx,
 
 			switch (j) {
 			case 0:
-				idx = h264_ctx->reflists.p[i];
+				idx = h264_ctx->reflists.p[i].index;
 				break;
 			case 1:
-				idx = h264_ctx->reflists.b0[i];
+				idx = h264_ctx->reflists.b0[i].index;
 				break;
 			case 2:
-				idx = h264_ctx->reflists.b1[i];
+				idx = h264_ctx->reflists.b1[i].index;
 				break;
 			}
 
diff --git a/include/media/v4l2-h264.h b/include/media/v4l2-h264.h
index 4b1c71c935e0..ef9a894e3c32 100644
--- a/include/media/v4l2-h264.h
+++ b/include/media/v4l2-h264.h
@@ -37,7 +37,7 @@ struct v4l2_h264_reflist_builder {
 		u16 longterm : 1;
 	} refs[V4L2_H264_NUM_DPB_ENTRIES];
 	s32 cur_pic_order_count;
-	u8 unordered_reflist[V4L2_H264_NUM_DPB_ENTRIES];
+	struct v4l2_h264_reference unordered_reflist[V4L2_H264_NUM_DPB_ENTRIES];
 	u8 num_valid;
 };
 
@@ -51,10 +51,10 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b,
  * v4l2_h264_build_b_ref_lists() - Build the B0/B1 reference lists
  *
  * @builder: reference list builder context
- * @b0_reflist: 16-bytes array used to store the B0 reference list. Each entry
- *		is an index in the DPB
- * @b1_reflist: 16-bytes array used to store the B1 reference list. Each entry
- *		is an index in the DPB
+ * @b0_reflist: 16 sized array used to store the B0 reference list. Each entry
+ *		is a v4l2_h264_reference structure
+ * @b1_reflist: 16 sized array used to store the B1 reference list. Each entry
+ *		is a v4l2_h264_reference structure
  *
  * This functions builds the B0/B1 reference lists. This procedure is described
  * in section '8.2.4 Decoding process for reference picture lists construction'
@@ -63,14 +63,15 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b,
  */
 void
 v4l2_h264_build_b_ref_lists(const struct v4l2_h264_reflist_builder *builder,
-			    u8 *b0_reflist, u8 *b1_reflist);
+			    struct v4l2_h264_reference *b0_reflist,
+			    struct v4l2_h264_reference *b1_reflist);
 
 /**
  * v4l2_h264_build_p_ref_list() - Build the P reference list
  *
  * @builder: reference list builder context
- * @reflist: 16-bytes array used to store the P reference list. Each entry
- *	     is an index in the DPB
+ * @reflist: 16 sized array used to store the P reference list. Each entry
+ *	     is a v4l2_h264_reference structure
  *
  * This functions builds the P reference lists. This procedure is describe in
  * section '8.2.4 Decoding process for reference picture lists construction'
@@ -79,6 +80,6 @@ v4l2_h264_build_b_ref_lists(const struct v4l2_h264_reflist_builder *builder,
  */
 void
 v4l2_h264_build_p_ref_list(const struct v4l2_h264_reflist_builder *builder,
-			   u8 *reflist);
+			   struct v4l2_h264_reference *reflist);
 
 #endif /* _MEDIA_V4L2_H264_H */
-- 
2.34.1


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^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 05/24] media: h264: Use v4l2_h264_reference for reflist
@ 2022-04-26 12:57   ` Nicolas Dufresne
  0 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab,
	Dmitry Osipenko, Thierry Reding, Jonathan Hunter,
	Ezequiel Garcia, Philipp Zabel, Greg Kroah-Hartman,
	Heiko Stuebner, Matthias Brugger
  Cc: nicolas, linux-media, linux-kernel, linux-tegra, linux-rockchip,
	linux-staging, linux-arm-kernel, linux-mediatek

In preparation for adding field decoding support, convert the byte arrays
for reflist into array of struct v4l2_h264_reference. That struct will
allow us to mark which field of the reference picture is being referenced.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
---
 .../mediatek/vcodec/vdec/vdec_h264_req_if.c   | 36 +++++--
 .../media/platform/nvidia/tegra-vde/h264.c    | 19 ++--
 drivers/media/v4l2-core/v4l2-h264.c           | 33 ++++---
 .../staging/media/hantro/hantro_g1_h264_dec.c | 38 +++----
 drivers/staging/media/hantro/hantro_hw.h      |  6 +-
 .../media/hantro/rockchip_vpu2_hw_h264_dec.c  | 98 +++++++++----------
 drivers/staging/media/rkvdec/rkvdec-h264.c    | 12 +--
 include/media/v4l2-h264.h                     | 19 ++--
 8 files changed, 143 insertions(+), 118 deletions(-)

diff --git a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c
index 43542de11e9c..8e59cf5c05a0 100644
--- a/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c
+++ b/drivers/media/platform/mediatek/vcodec/vdec/vdec_h264_req_if.c
@@ -439,11 +439,24 @@ static void update_dpb(const struct v4l2_ctrl_h264_decode_params *dec_param,
 	}
 }
 
-/*
- * The firmware expects unused reflist entries to have the value 0x20.
- */
-static void fixup_ref_list(u8 *ref_list, size_t num_valid)
+static void get_ref_list(u8 *ref_list,
+			 const struct v4l2_h264_reference *v4l2_ref_list,
+			 int num_valid)
 {
+	u32 i;
+
+	/*
+	 * TODO The firmware does not support field decoding. Future
+	 * implementation must use v4l2_ref_list[i].fields to obtain
+	 * the reference field parity.
+	 */
+
+	for (i = 0; i < num_valid; i++)
+		ref_list[i] = v4l2_ref_list[i].index;
+
+	/*
+	 * The firmware expects unused reflist entries to have the value 0x20.
+	 */
 	memset(&ref_list[num_valid], 0x20, 32 - num_valid);
 }
 
@@ -459,6 +472,9 @@ static void get_vdec_decode_parameters(struct vdec_h264_slice_inst *inst)
 		get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_SCALING_MATRIX);
 	struct mtk_h264_dec_slice_param *slice_param = &inst->h264_slice_param;
 	struct v4l2_h264_reflist_builder reflist_builder;
+	struct v4l2_h264_reference v4l2_p0_reflist[V4L2_H264_REF_LIST_LEN];
+	struct v4l2_h264_reference v4l2_b0_reflist[V4L2_H264_REF_LIST_LEN];
+	struct v4l2_h264_reference v4l2_b1_reflist[V4L2_H264_REF_LIST_LEN];
 	u8 *p0_reflist = slice_param->decode_params.ref_pic_list_p0;
 	u8 *b0_reflist = slice_param->decode_params.ref_pic_list_b0;
 	u8 *b1_reflist = slice_param->decode_params.ref_pic_list_b1;
@@ -475,12 +491,14 @@ static void get_vdec_decode_parameters(struct vdec_h264_slice_inst *inst)
 	/* Build the reference lists */
 	v4l2_h264_init_reflist_builder(&reflist_builder, dec_params, sps,
 				       inst->dpb);
-	v4l2_h264_build_p_ref_list(&reflist_builder, p0_reflist);
-	v4l2_h264_build_b_ref_lists(&reflist_builder, b0_reflist, b1_reflist);
+	v4l2_h264_build_p_ref_list(&reflist_builder, v4l2_p0_reflist);
+	v4l2_h264_build_b_ref_lists(&reflist_builder, v4l2_b0_reflist,
+				    v4l2_b1_reflist);
+
 	/* Adapt the built lists to the firmware's expectations */
-	fixup_ref_list(p0_reflist, reflist_builder.num_valid);
-	fixup_ref_list(b0_reflist, reflist_builder.num_valid);
-	fixup_ref_list(b1_reflist, reflist_builder.num_valid);
+	get_ref_list(p0_reflist, v4l2_p0_reflist, reflist_builder.num_valid);
+	get_ref_list(b0_reflist, v4l2_b0_reflist, reflist_builder.num_valid);
+	get_ref_list(b1_reflist, v4l2_b1_reflist, reflist_builder.num_valid);
 
 	memcpy(&inst->vsi_ctx.h264_slice_params, slice_param,
 	       sizeof(inst->vsi_ctx.h264_slice_params));
diff --git a/drivers/media/platform/nvidia/tegra-vde/h264.c b/drivers/media/platform/nvidia/tegra-vde/h264.c
index d8e5534e80c8..acc1b97f06ad 100644
--- a/drivers/media/platform/nvidia/tegra-vde/h264.c
+++ b/drivers/media/platform/nvidia/tegra-vde/h264.c
@@ -45,9 +45,9 @@ struct tegra_vde_h264_decoder_ctx {
 };
 
 struct h264_reflists {
-	u8 p[V4L2_H264_NUM_DPB_ENTRIES];
-	u8 b0[V4L2_H264_NUM_DPB_ENTRIES];
-	u8 b1[V4L2_H264_NUM_DPB_ENTRIES];
+	struct v4l2_h264_reference p[V4L2_H264_NUM_DPB_ENTRIES];
+	struct v4l2_h264_reference b0[V4L2_H264_NUM_DPB_ENTRIES];
+	struct v4l2_h264_reference b1[V4L2_H264_NUM_DPB_ENTRIES];
 };
 
 static int tegra_vde_wait_mbe(struct tegra_vde *vde)
@@ -768,7 +768,7 @@ static int tegra_vde_h264_setup_frames(struct tegra_ctx *ctx,
 	struct h264_reflists reflists;
 	struct vb2_buffer *ref;
 	unsigned int i;
-	u8 *dpb_id;
+	struct v4l2_h264_reference *dpb_id;
 	int err;
 
 	/*
@@ -811,14 +811,16 @@ static int tegra_vde_h264_setup_frames(struct tegra_ctx *ctx,
 	}
 
 	for (i = 0; i < b.num_valid; i++) {
-		ref = get_ref_buf(ctx, dst, dpb_id[i]);
+		int dpb_idx = dpb_id[i].index;
 
-		err = tegra_vde_h264_setup_frame(ctx, h264, &b, ref, dpb_id[i],
+		ref = get_ref_buf(ctx, dst, dpb_idx);
+
+		err = tegra_vde_h264_setup_frame(ctx, h264, &b, ref, dpb_idx,
 						 h264->dpb_frames_nb++);
 		if (err)
 			return err;
 
-		if (b.refs[dpb_id[i]].pic_order_count < b.cur_pic_order_count)
+		if (b.refs[dpb_idx].top_field_order_cnt < b.cur_pic_order_count)
 			h264->dpb_ref_frames_with_earlier_poc_nb++;
 	}
 
@@ -880,6 +882,9 @@ static int tegra_vde_h264_setup_context(struct tegra_ctx *ctx,
 	if (h->pps->flags & V4L2_H264_PPS_FLAG_ENTROPY_CODING_MODE)
 		return -EOPNOTSUPP;
 
+	if (h->decode_params->flags & V4L2_H264_DECODE_PARAM_FLAG_FIELD_PIC)
+		return -EOPNOTSUPP;
+
 	if (h->sps->profile_idc == 66)
 		h264->baseline_profile = 1;
 
diff --git a/drivers/media/v4l2-core/v4l2-h264.c b/drivers/media/v4l2-core/v4l2-h264.c
index ac47519a9fbe..afbfcf78efe4 100644
--- a/drivers/media/v4l2-core/v4l2-h264.c
+++ b/drivers/media/v4l2-core/v4l2-h264.c
@@ -75,12 +75,12 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b,
 			pic_order_count = dpb[i].top_field_order_cnt;
 
 		b->refs[i].pic_order_count = pic_order_count;
-		b->unordered_reflist[b->num_valid] = i;
+		b->unordered_reflist[b->num_valid].index = i;
 		b->num_valid++;
 	}
 
 	for (i = b->num_valid; i < ARRAY_SIZE(b->unordered_reflist); i++)
-		b->unordered_reflist[i] = i;
+		b->unordered_reflist[i].index = i;
 }
 EXPORT_SYMBOL_GPL(v4l2_h264_init_reflist_builder);
 
@@ -90,8 +90,8 @@ static int v4l2_h264_p_ref_list_cmp(const void *ptra, const void *ptrb,
 	const struct v4l2_h264_reflist_builder *builder = data;
 	u8 idxa, idxb;
 
-	idxa = *((u8 *)ptra);
-	idxb = *((u8 *)ptrb);
+	idxa = ((struct v4l2_h264_reference *)ptra)->index;
+	idxb = ((struct v4l2_h264_reference *)ptrb)->index;
 
 	if (WARN_ON(idxa >= V4L2_H264_NUM_DPB_ENTRIES ||
 		    idxb >= V4L2_H264_NUM_DPB_ENTRIES))
@@ -125,8 +125,8 @@ static int v4l2_h264_b0_ref_list_cmp(const void *ptra, const void *ptrb,
 	s32 poca, pocb;
 	u8 idxa, idxb;
 
-	idxa = *((u8 *)ptra);
-	idxb = *((u8 *)ptrb);
+	idxa = ((struct v4l2_h264_reference *)ptra)->index;
+	idxb = ((struct v4l2_h264_reference *)ptrb)->index;
 
 	if (WARN_ON(idxa >= V4L2_H264_NUM_DPB_ENTRIES ||
 		    idxb >= V4L2_H264_NUM_DPB_ENTRIES))
@@ -170,8 +170,8 @@ static int v4l2_h264_b1_ref_list_cmp(const void *ptra, const void *ptrb,
 	s32 poca, pocb;
 	u8 idxa, idxb;
 
-	idxa = *((u8 *)ptra);
-	idxb = *((u8 *)ptrb);
+	idxa = ((struct v4l2_h264_reference *)ptra)->index;
+	idxb = ((struct v4l2_h264_reference *)ptrb)->index;
 
 	if (WARN_ON(idxa >= V4L2_H264_NUM_DPB_ENTRIES ||
 		    idxb >= V4L2_H264_NUM_DPB_ENTRIES))
@@ -212,8 +212,8 @@ static int v4l2_h264_b1_ref_list_cmp(const void *ptra, const void *ptrb,
  * v4l2_h264_build_p_ref_list() - Build the P reference list
  *
  * @builder: reference list builder context
- * @reflist: 16-bytes array used to store the P reference list. Each entry
- *	     is an index in the DPB
+ * @reflist: 16 sized array used to store the P reference list. Each entry
+ *	     is a v4l2_h264_reference structure
  *
  * This functions builds the P reference lists. This procedure is describe in
  * section '8.2.4 Decoding process for reference picture lists construction'
@@ -222,7 +222,7 @@ static int v4l2_h264_b1_ref_list_cmp(const void *ptra, const void *ptrb,
  */
 void
 v4l2_h264_build_p_ref_list(const struct v4l2_h264_reflist_builder *builder,
-			   u8 *reflist)
+			   struct v4l2_h264_reference *reflist)
 {
 	memcpy(reflist, builder->unordered_reflist,
 	       sizeof(builder->unordered_reflist[0]) * builder->num_valid);
@@ -235,10 +235,10 @@ EXPORT_SYMBOL_GPL(v4l2_h264_build_p_ref_list);
  * v4l2_h264_build_b_ref_lists() - Build the B0/B1 reference lists
  *
  * @builder: reference list builder context
- * @b0_reflist: 16-bytes array used to store the B0 reference list. Each entry
- *		is an index in the DPB
- * @b1_reflist: 16-bytes array used to store the B1 reference list. Each entry
- *		is an index in the DPB
+ * @b0_reflist: 16 sized array used to store the B0 reference list. Each entry
+ *		is a v4l2_h264_reference structure
+ * @b1_reflist: 16 sized array used to store the B1 reference list. Each entry
+ *		is a v4l2_h264_reference structure
  *
  * This functions builds the B0/B1 reference lists. This procedure is described
  * in section '8.2.4 Decoding process for reference picture lists construction'
@@ -247,7 +247,8 @@ EXPORT_SYMBOL_GPL(v4l2_h264_build_p_ref_list);
  */
 void
 v4l2_h264_build_b_ref_lists(const struct v4l2_h264_reflist_builder *builder,
-			    u8 *b0_reflist, u8 *b1_reflist)
+			    struct v4l2_h264_reference *b0_reflist,
+			    struct v4l2_h264_reference *b1_reflist)
 {
 	memcpy(b0_reflist, builder->unordered_reflist,
 	       sizeof(builder->unordered_reflist[0]) * builder->num_valid);
diff --git a/drivers/staging/media/hantro/hantro_g1_h264_dec.c b/drivers/staging/media/hantro/hantro_g1_h264_dec.c
index f49dbfb8a843..9de7f05eff2a 100644
--- a/drivers/staging/media/hantro/hantro_g1_h264_dec.c
+++ b/drivers/staging/media/hantro/hantro_g1_h264_dec.c
@@ -126,7 +126,7 @@ static void set_params(struct hantro_ctx *ctx, struct vb2_v4l2_buffer *src_buf)
 
 static void set_ref(struct hantro_ctx *ctx)
 {
-	const u8 *b0_reflist, *b1_reflist, *p_reflist;
+	const struct v4l2_h264_reference *b0_reflist, *b1_reflist, *p_reflist;
 	struct hantro_dev *vpu = ctx->dev;
 	int reg_num;
 	u32 reg;
@@ -157,12 +157,12 @@ static void set_ref(struct hantro_ctx *ctx)
 	 */
 	reg_num = 0;
 	for (i = 0; i < 15; i += 3) {
-		reg = G1_REG_BD_REF_PIC_BINIT_RLIST_F0(b0_reflist[i]) |
-		      G1_REG_BD_REF_PIC_BINIT_RLIST_F1(b0_reflist[i + 1]) |
-		      G1_REG_BD_REF_PIC_BINIT_RLIST_F2(b0_reflist[i + 2]) |
-		      G1_REG_BD_REF_PIC_BINIT_RLIST_B0(b1_reflist[i]) |
-		      G1_REG_BD_REF_PIC_BINIT_RLIST_B1(b1_reflist[i + 1]) |
-		      G1_REG_BD_REF_PIC_BINIT_RLIST_B2(b1_reflist[i + 2]);
+		reg = G1_REG_BD_REF_PIC_BINIT_RLIST_F0(b0_reflist[i].index) |
+		      G1_REG_BD_REF_PIC_BINIT_RLIST_F1(b0_reflist[i + 1].index) |
+		      G1_REG_BD_REF_PIC_BINIT_RLIST_F2(b0_reflist[i + 2].index) |
+		      G1_REG_BD_REF_PIC_BINIT_RLIST_B0(b1_reflist[i].index) |
+		      G1_REG_BD_REF_PIC_BINIT_RLIST_B1(b1_reflist[i + 1].index) |
+		      G1_REG_BD_REF_PIC_BINIT_RLIST_B2(b1_reflist[i + 2].index);
 		vdpu_write_relaxed(vpu, reg, G1_REG_BD_REF_PIC(reg_num++));
 	}
 
@@ -171,12 +171,12 @@ static void set_ref(struct hantro_ctx *ctx)
 	 * of forward and backward reference picture lists and first 4 entries
 	 * of P forward picture list.
 	 */
-	reg = G1_REG_BD_P_REF_PIC_BINIT_RLIST_F15(b0_reflist[15]) |
-	      G1_REG_BD_P_REF_PIC_BINIT_RLIST_B15(b1_reflist[15]) |
-	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F0(p_reflist[0]) |
-	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F1(p_reflist[1]) |
-	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F2(p_reflist[2]) |
-	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F3(p_reflist[3]);
+	reg = G1_REG_BD_P_REF_PIC_BINIT_RLIST_F15(b0_reflist[15].index) |
+	      G1_REG_BD_P_REF_PIC_BINIT_RLIST_B15(b1_reflist[15].index) |
+	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F0(p_reflist[0].index) |
+	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F1(p_reflist[1].index) |
+	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F2(p_reflist[2].index) |
+	      G1_REG_BD_P_REF_PIC_PINIT_RLIST_F3(p_reflist[3].index);
 	vdpu_write_relaxed(vpu, reg, G1_REG_BD_P_REF_PIC);
 
 	/*
@@ -185,12 +185,12 @@ static void set_ref(struct hantro_ctx *ctx)
 	 */
 	reg_num = 0;
 	for (i = 4; i < HANTRO_H264_DPB_SIZE; i += 6) {
-		reg = G1_REG_FWD_PIC_PINIT_RLIST_F0(p_reflist[i]) |
-		      G1_REG_FWD_PIC_PINIT_RLIST_F1(p_reflist[i + 1]) |
-		      G1_REG_FWD_PIC_PINIT_RLIST_F2(p_reflist[i + 2]) |
-		      G1_REG_FWD_PIC_PINIT_RLIST_F3(p_reflist[i + 3]) |
-		      G1_REG_FWD_PIC_PINIT_RLIST_F4(p_reflist[i + 4]) |
-		      G1_REG_FWD_PIC_PINIT_RLIST_F5(p_reflist[i + 5]);
+		reg = G1_REG_FWD_PIC_PINIT_RLIST_F0(p_reflist[i].index) |
+		      G1_REG_FWD_PIC_PINIT_RLIST_F1(p_reflist[i + 1].index) |
+		      G1_REG_FWD_PIC_PINIT_RLIST_F2(p_reflist[i + 2].index) |
+		      G1_REG_FWD_PIC_PINIT_RLIST_F3(p_reflist[i + 3].index) |
+		      G1_REG_FWD_PIC_PINIT_RLIST_F4(p_reflist[i + 4].index) |
+		      G1_REG_FWD_PIC_PINIT_RLIST_F5(p_reflist[i + 5].index);
 		vdpu_write_relaxed(vpu, reg, G1_REG_FWD_PIC(reg_num++));
 	}
 
diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
index ed018e293ba0..2bc6b8f088f5 100644
--- a/drivers/staging/media/hantro/hantro_hw.h
+++ b/drivers/staging/media/hantro/hantro_hw.h
@@ -69,9 +69,9 @@ struct hantro_h264_dec_ctrls {
  * @b1:		B1 reflist
  */
 struct hantro_h264_dec_reflists {
-	u8 p[HANTRO_H264_DPB_SIZE];
-	u8 b0[HANTRO_H264_DPB_SIZE];
-	u8 b1[HANTRO_H264_DPB_SIZE];
+	struct v4l2_h264_reference p[HANTRO_H264_DPB_SIZE];
+	struct v4l2_h264_reference b0[HANTRO_H264_DPB_SIZE];
+	struct v4l2_h264_reference b1[HANTRO_H264_DPB_SIZE];
 };
 
 /**
diff --git a/drivers/staging/media/hantro/rockchip_vpu2_hw_h264_dec.c b/drivers/staging/media/hantro/rockchip_vpu2_hw_h264_dec.c
index 64a6330475eb..46c1a83bcc4e 100644
--- a/drivers/staging/media/hantro/rockchip_vpu2_hw_h264_dec.c
+++ b/drivers/staging/media/hantro/rockchip_vpu2_hw_h264_dec.c
@@ -298,7 +298,7 @@ static void set_params(struct hantro_ctx *ctx, struct vb2_v4l2_buffer *src_buf)
 
 static void set_ref(struct hantro_ctx *ctx)
 {
-	const u8 *b0_reflist, *b1_reflist, *p_reflist;
+	const struct v4l2_h264_reference *b0_reflist, *b1_reflist, *p_reflist;
 	struct hantro_dev *vpu = ctx->dev;
 	u32 reg;
 	int i;
@@ -307,20 +307,20 @@ static void set_ref(struct hantro_ctx *ctx)
 	b1_reflist = ctx->h264_dec.reflists.b1;
 	p_reflist = ctx->h264_dec.reflists.p;
 
-	reg = VDPU_REG_PINIT_RLIST_F9(p_reflist[9]) |
-	      VDPU_REG_PINIT_RLIST_F8(p_reflist[8]) |
-	      VDPU_REG_PINIT_RLIST_F7(p_reflist[7]) |
-	      VDPU_REG_PINIT_RLIST_F6(p_reflist[6]) |
-	      VDPU_REG_PINIT_RLIST_F5(p_reflist[5]) |
-	      VDPU_REG_PINIT_RLIST_F4(p_reflist[4]);
+	reg = VDPU_REG_PINIT_RLIST_F9(p_reflist[9].index) |
+	      VDPU_REG_PINIT_RLIST_F8(p_reflist[8].index) |
+	      VDPU_REG_PINIT_RLIST_F7(p_reflist[7].index) |
+	      VDPU_REG_PINIT_RLIST_F6(p_reflist[6].index) |
+	      VDPU_REG_PINIT_RLIST_F5(p_reflist[5].index) |
+	      VDPU_REG_PINIT_RLIST_F4(p_reflist[4].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(74));
 
-	reg = VDPU_REG_PINIT_RLIST_F15(p_reflist[15]) |
-	      VDPU_REG_PINIT_RLIST_F14(p_reflist[14]) |
-	      VDPU_REG_PINIT_RLIST_F13(p_reflist[13]) |
-	      VDPU_REG_PINIT_RLIST_F12(p_reflist[12]) |
-	      VDPU_REG_PINIT_RLIST_F11(p_reflist[11]) |
-	      VDPU_REG_PINIT_RLIST_F10(p_reflist[10]);
+	reg = VDPU_REG_PINIT_RLIST_F15(p_reflist[15].index) |
+	      VDPU_REG_PINIT_RLIST_F14(p_reflist[14].index) |
+	      VDPU_REG_PINIT_RLIST_F13(p_reflist[13].index) |
+	      VDPU_REG_PINIT_RLIST_F12(p_reflist[12].index) |
+	      VDPU_REG_PINIT_RLIST_F11(p_reflist[11].index) |
+	      VDPU_REG_PINIT_RLIST_F10(p_reflist[10].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(75));
 
 	reg = VDPU_REG_REFER1_NBR(hantro_h264_get_ref_nbr(ctx, 1)) |
@@ -355,54 +355,54 @@ static void set_ref(struct hantro_ctx *ctx)
 	      VDPU_REG_REFER14_NBR(hantro_h264_get_ref_nbr(ctx, 14));
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(83));
 
-	reg = VDPU_REG_BINIT_RLIST_F5(b0_reflist[5]) |
-	      VDPU_REG_BINIT_RLIST_F4(b0_reflist[4]) |
-	      VDPU_REG_BINIT_RLIST_F3(b0_reflist[3]) |
-	      VDPU_REG_BINIT_RLIST_F2(b0_reflist[2]) |
-	      VDPU_REG_BINIT_RLIST_F1(b0_reflist[1]) |
-	      VDPU_REG_BINIT_RLIST_F0(b0_reflist[0]);
+	reg = VDPU_REG_BINIT_RLIST_F5(b0_reflist[5].index) |
+	      VDPU_REG_BINIT_RLIST_F4(b0_reflist[4].index) |
+	      VDPU_REG_BINIT_RLIST_F3(b0_reflist[3].index) |
+	      VDPU_REG_BINIT_RLIST_F2(b0_reflist[2].index) |
+	      VDPU_REG_BINIT_RLIST_F1(b0_reflist[1].index) |
+	      VDPU_REG_BINIT_RLIST_F0(b0_reflist[0].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(100));
 
-	reg = VDPU_REG_BINIT_RLIST_F11(b0_reflist[11]) |
-	      VDPU_REG_BINIT_RLIST_F10(b0_reflist[10]) |
-	      VDPU_REG_BINIT_RLIST_F9(b0_reflist[9]) |
-	      VDPU_REG_BINIT_RLIST_F8(b0_reflist[8]) |
-	      VDPU_REG_BINIT_RLIST_F7(b0_reflist[7]) |
-	      VDPU_REG_BINIT_RLIST_F6(b0_reflist[6]);
+	reg = VDPU_REG_BINIT_RLIST_F11(b0_reflist[11].index) |
+	      VDPU_REG_BINIT_RLIST_F10(b0_reflist[10].index) |
+	      VDPU_REG_BINIT_RLIST_F9(b0_reflist[9].index) |
+	      VDPU_REG_BINIT_RLIST_F8(b0_reflist[8].index) |
+	      VDPU_REG_BINIT_RLIST_F7(b0_reflist[7].index) |
+	      VDPU_REG_BINIT_RLIST_F6(b0_reflist[6].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(101));
 
-	reg = VDPU_REG_BINIT_RLIST_F15(b0_reflist[15]) |
-	      VDPU_REG_BINIT_RLIST_F14(b0_reflist[14]) |
-	      VDPU_REG_BINIT_RLIST_F13(b0_reflist[13]) |
-	      VDPU_REG_BINIT_RLIST_F12(b0_reflist[12]);
+	reg = VDPU_REG_BINIT_RLIST_F15(b0_reflist[15].index) |
+	      VDPU_REG_BINIT_RLIST_F14(b0_reflist[14].index) |
+	      VDPU_REG_BINIT_RLIST_F13(b0_reflist[13].index) |
+	      VDPU_REG_BINIT_RLIST_F12(b0_reflist[12].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(102));
 
-	reg = VDPU_REG_BINIT_RLIST_B5(b1_reflist[5]) |
-	      VDPU_REG_BINIT_RLIST_B4(b1_reflist[4]) |
-	      VDPU_REG_BINIT_RLIST_B3(b1_reflist[3]) |
-	      VDPU_REG_BINIT_RLIST_B2(b1_reflist[2]) |
-	      VDPU_REG_BINIT_RLIST_B1(b1_reflist[1]) |
-	      VDPU_REG_BINIT_RLIST_B0(b1_reflist[0]);
+	reg = VDPU_REG_BINIT_RLIST_B5(b1_reflist[5].index) |
+	      VDPU_REG_BINIT_RLIST_B4(b1_reflist[4].index) |
+	      VDPU_REG_BINIT_RLIST_B3(b1_reflist[3].index) |
+	      VDPU_REG_BINIT_RLIST_B2(b1_reflist[2].index) |
+	      VDPU_REG_BINIT_RLIST_B1(b1_reflist[1].index) |
+	      VDPU_REG_BINIT_RLIST_B0(b1_reflist[0].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(103));
 
-	reg = VDPU_REG_BINIT_RLIST_B11(b1_reflist[11]) |
-	      VDPU_REG_BINIT_RLIST_B10(b1_reflist[10]) |
-	      VDPU_REG_BINIT_RLIST_B9(b1_reflist[9]) |
-	      VDPU_REG_BINIT_RLIST_B8(b1_reflist[8]) |
-	      VDPU_REG_BINIT_RLIST_B7(b1_reflist[7]) |
-	      VDPU_REG_BINIT_RLIST_B6(b1_reflist[6]);
+	reg = VDPU_REG_BINIT_RLIST_B11(b1_reflist[11].index) |
+	      VDPU_REG_BINIT_RLIST_B10(b1_reflist[10].index) |
+	      VDPU_REG_BINIT_RLIST_B9(b1_reflist[9].index) |
+	      VDPU_REG_BINIT_RLIST_B8(b1_reflist[8].index) |
+	      VDPU_REG_BINIT_RLIST_B7(b1_reflist[7].index) |
+	      VDPU_REG_BINIT_RLIST_B6(b1_reflist[6].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(104));
 
-	reg = VDPU_REG_BINIT_RLIST_B15(b1_reflist[15]) |
-	      VDPU_REG_BINIT_RLIST_B14(b1_reflist[14]) |
-	      VDPU_REG_BINIT_RLIST_B13(b1_reflist[13]) |
-	      VDPU_REG_BINIT_RLIST_B12(b1_reflist[12]);
+	reg = VDPU_REG_BINIT_RLIST_B15(b1_reflist[15].index) |
+	      VDPU_REG_BINIT_RLIST_B14(b1_reflist[14].index) |
+	      VDPU_REG_BINIT_RLIST_B13(b1_reflist[13].index) |
+	      VDPU_REG_BINIT_RLIST_B12(b1_reflist[12].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(105));
 
-	reg = VDPU_REG_PINIT_RLIST_F3(p_reflist[3]) |
-	      VDPU_REG_PINIT_RLIST_F2(p_reflist[2]) |
-	      VDPU_REG_PINIT_RLIST_F1(p_reflist[1]) |
-	      VDPU_REG_PINIT_RLIST_F0(p_reflist[0]);
+	reg = VDPU_REG_PINIT_RLIST_F3(p_reflist[3].index) |
+	      VDPU_REG_PINIT_RLIST_F2(p_reflist[2].index) |
+	      VDPU_REG_PINIT_RLIST_F1(p_reflist[1].index) |
+	      VDPU_REG_PINIT_RLIST_F0(p_reflist[0].index);
 	vdpu_write_relaxed(vpu, reg, VDPU_SWREG(106));
 
 	reg = VDPU_REG_REFER_LTERM_E(ctx->h264_dec.dpb_longterm);
diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
index 951e19231da2..3c7f3d87fab4 100644
--- a/drivers/staging/media/rkvdec/rkvdec-h264.c
+++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
@@ -100,9 +100,9 @@ struct rkvdec_h264_priv_tbl {
 #define RKVDEC_H264_DPB_SIZE 16
 
 struct rkvdec_h264_reflists {
-	u8 p[RKVDEC_H264_DPB_SIZE];
-	u8 b0[RKVDEC_H264_DPB_SIZE];
-	u8 b1[RKVDEC_H264_DPB_SIZE];
+	struct v4l2_h264_reference p[RKVDEC_H264_DPB_SIZE];
+	struct v4l2_h264_reference b0[RKVDEC_H264_DPB_SIZE];
+	struct v4l2_h264_reference b1[RKVDEC_H264_DPB_SIZE];
 	u8 num_valid;
 };
 
@@ -767,13 +767,13 @@ static void assemble_hw_rps(struct rkvdec_ctx *ctx,
 
 			switch (j) {
 			case 0:
-				idx = h264_ctx->reflists.p[i];
+				idx = h264_ctx->reflists.p[i].index;
 				break;
 			case 1:
-				idx = h264_ctx->reflists.b0[i];
+				idx = h264_ctx->reflists.b0[i].index;
 				break;
 			case 2:
-				idx = h264_ctx->reflists.b1[i];
+				idx = h264_ctx->reflists.b1[i].index;
 				break;
 			}
 
diff --git a/include/media/v4l2-h264.h b/include/media/v4l2-h264.h
index 4b1c71c935e0..ef9a894e3c32 100644
--- a/include/media/v4l2-h264.h
+++ b/include/media/v4l2-h264.h
@@ -37,7 +37,7 @@ struct v4l2_h264_reflist_builder {
 		u16 longterm : 1;
 	} refs[V4L2_H264_NUM_DPB_ENTRIES];
 	s32 cur_pic_order_count;
-	u8 unordered_reflist[V4L2_H264_NUM_DPB_ENTRIES];
+	struct v4l2_h264_reference unordered_reflist[V4L2_H264_NUM_DPB_ENTRIES];
 	u8 num_valid;
 };
 
@@ -51,10 +51,10 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b,
  * v4l2_h264_build_b_ref_lists() - Build the B0/B1 reference lists
  *
  * @builder: reference list builder context
- * @b0_reflist: 16-bytes array used to store the B0 reference list. Each entry
- *		is an index in the DPB
- * @b1_reflist: 16-bytes array used to store the B1 reference list. Each entry
- *		is an index in the DPB
+ * @b0_reflist: 16 sized array used to store the B0 reference list. Each entry
+ *		is a v4l2_h264_reference structure
+ * @b1_reflist: 16 sized array used to store the B1 reference list. Each entry
+ *		is a v4l2_h264_reference structure
  *
  * This functions builds the B0/B1 reference lists. This procedure is described
  * in section '8.2.4 Decoding process for reference picture lists construction'
@@ -63,14 +63,15 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b,
  */
 void
 v4l2_h264_build_b_ref_lists(const struct v4l2_h264_reflist_builder *builder,
-			    u8 *b0_reflist, u8 *b1_reflist);
+			    struct v4l2_h264_reference *b0_reflist,
+			    struct v4l2_h264_reference *b1_reflist);
 
 /**
  * v4l2_h264_build_p_ref_list() - Build the P reference list
  *
  * @builder: reference list builder context
- * @reflist: 16-bytes array used to store the P reference list. Each entry
- *	     is an index in the DPB
+ * @reflist: 16 sized array used to store the P reference list. Each entry
+ *	     is a v4l2_h264_reference structure
  *
  * This functions builds the P reference lists. This procedure is describe in
  * section '8.2.4 Decoding process for reference picture lists construction'
@@ -79,6 +80,6 @@ v4l2_h264_build_b_ref_lists(const struct v4l2_h264_reflist_builder *builder,
  */
 void
 v4l2_h264_build_p_ref_list(const struct v4l2_h264_reflist_builder *builder,
-			   u8 *reflist);
+			   struct v4l2_h264_reference *reflist);
 
 #endif /* _MEDIA_V4L2_H264_H */
-- 
2.34.1


_______________________________________________
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^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 06/24] media: h264: Increase reference lists size to 32
  2022-04-26 12:57 [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders Nicolas Dufresne
@ 2022-04-26 12:57   ` Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 02/24] media: v4l2-mem2mem: Trace on implicit un-hold Nicolas Dufresne
                     ` (22 subsequent siblings)
  23 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Mauro Carvalho Chehab, Ezequiel Garcia, Philipp Zabel,
	Greg Kroah-Hartman
  Cc: nicolas, linux-media, Sebastian Fricke, linux-kernel,
	linux-rockchip, linux-staging

This is to accommodate support for field decoding, which splits the top
and the bottom references into the reference list.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
---
 drivers/media/v4l2-core/v4l2-h264.c        | 6 +++---
 drivers/staging/media/hantro/hantro_hw.h   | 6 +++---
 drivers/staging/media/rkvdec/rkvdec-h264.c | 6 +++---
 include/media/v4l2-h264.h                  | 8 ++++----
 4 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/media/v4l2-core/v4l2-h264.c b/drivers/media/v4l2-core/v4l2-h264.c
index afbfcf78efe4..4b46b36526c0 100644
--- a/drivers/media/v4l2-core/v4l2-h264.c
+++ b/drivers/media/v4l2-core/v4l2-h264.c
@@ -212,7 +212,7 @@ static int v4l2_h264_b1_ref_list_cmp(const void *ptra, const void *ptrb,
  * v4l2_h264_build_p_ref_list() - Build the P reference list
  *
  * @builder: reference list builder context
- * @reflist: 16 sized array used to store the P reference list. Each entry
+ * @reflist: 32 sized array used to store the P reference list. Each entry
  *	     is a v4l2_h264_reference structure
  *
  * This functions builds the P reference lists. This procedure is describe in
@@ -235,9 +235,9 @@ EXPORT_SYMBOL_GPL(v4l2_h264_build_p_ref_list);
  * v4l2_h264_build_b_ref_lists() - Build the B0/B1 reference lists
  *
  * @builder: reference list builder context
- * @b0_reflist: 16 sized array used to store the B0 reference list. Each entry
+ * @b0_reflist: 32 sized array used to store the B0 reference list. Each entry
  *		is a v4l2_h264_reference structure
- * @b1_reflist: 16 sized array used to store the B1 reference list. Each entry
+ * @b1_reflist: 32 sized array used to store the B1 reference list. Each entry
  *		is a v4l2_h264_reference structure
  *
  * This functions builds the B0/B1 reference lists. This procedure is described
diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
index 2bc6b8f088f5..292aaaabaf24 100644
--- a/drivers/staging/media/hantro/hantro_hw.h
+++ b/drivers/staging/media/hantro/hantro_hw.h
@@ -69,9 +69,9 @@ struct hantro_h264_dec_ctrls {
  * @b1:		B1 reflist
  */
 struct hantro_h264_dec_reflists {
-	struct v4l2_h264_reference p[HANTRO_H264_DPB_SIZE];
-	struct v4l2_h264_reference b0[HANTRO_H264_DPB_SIZE];
-	struct v4l2_h264_reference b1[HANTRO_H264_DPB_SIZE];
+	struct v4l2_h264_reference p[V4L2_H264_REF_LIST_LEN];
+	struct v4l2_h264_reference b0[V4L2_H264_REF_LIST_LEN];
+	struct v4l2_h264_reference b1[V4L2_H264_REF_LIST_LEN];
 };
 
 /**
diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
index 3c7f3d87fab4..dff89732ddd0 100644
--- a/drivers/staging/media/rkvdec/rkvdec-h264.c
+++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
@@ -100,9 +100,9 @@ struct rkvdec_h264_priv_tbl {
 #define RKVDEC_H264_DPB_SIZE 16
 
 struct rkvdec_h264_reflists {
-	struct v4l2_h264_reference p[RKVDEC_H264_DPB_SIZE];
-	struct v4l2_h264_reference b0[RKVDEC_H264_DPB_SIZE];
-	struct v4l2_h264_reference b1[RKVDEC_H264_DPB_SIZE];
+	struct v4l2_h264_reference p[V4L2_H264_REF_LIST_LEN];
+	struct v4l2_h264_reference b0[V4L2_H264_REF_LIST_LEN];
+	struct v4l2_h264_reference b1[V4L2_H264_REF_LIST_LEN];
 	u8 num_valid;
 };
 
diff --git a/include/media/v4l2-h264.h b/include/media/v4l2-h264.h
index ef9a894e3c32..e282fb16ac58 100644
--- a/include/media/v4l2-h264.h
+++ b/include/media/v4l2-h264.h
@@ -37,7 +37,7 @@ struct v4l2_h264_reflist_builder {
 		u16 longterm : 1;
 	} refs[V4L2_H264_NUM_DPB_ENTRIES];
 	s32 cur_pic_order_count;
-	struct v4l2_h264_reference unordered_reflist[V4L2_H264_NUM_DPB_ENTRIES];
+	struct v4l2_h264_reference unordered_reflist[V4L2_H264_REF_LIST_LEN];
 	u8 num_valid;
 };
 
@@ -51,9 +51,9 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b,
  * v4l2_h264_build_b_ref_lists() - Build the B0/B1 reference lists
  *
  * @builder: reference list builder context
- * @b0_reflist: 16 sized array used to store the B0 reference list. Each entry
+ * @b0_reflist: 32 sized array used to store the B0 reference list. Each entry
  *		is a v4l2_h264_reference structure
- * @b1_reflist: 16 sized array used to store the B1 reference list. Each entry
+ * @b1_reflist: 32 sized array used to store the B1 reference list. Each entry
  *		is a v4l2_h264_reference structure
  *
  * This functions builds the B0/B1 reference lists. This procedure is described
@@ -70,7 +70,7 @@ v4l2_h264_build_b_ref_lists(const struct v4l2_h264_reflist_builder *builder,
  * v4l2_h264_build_p_ref_list() - Build the P reference list
  *
  * @builder: reference list builder context
- * @reflist: 16 sized array used to store the P reference list. Each entry
+ * @reflist: 32 sized array used to store the P reference list. Each entry
  *	     is a v4l2_h264_reference structure
  *
  * This functions builds the P reference lists. This procedure is describe in
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 06/24] media: h264: Increase reference lists size to 32
@ 2022-04-26 12:57   ` Nicolas Dufresne
  0 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Mauro Carvalho Chehab, Ezequiel Garcia, Philipp Zabel,
	Greg Kroah-Hartman
  Cc: nicolas, linux-media, Sebastian Fricke, linux-kernel,
	linux-rockchip, linux-staging

This is to accommodate support for field decoding, which splits the top
and the bottom references into the reference list.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
---
 drivers/media/v4l2-core/v4l2-h264.c        | 6 +++---
 drivers/staging/media/hantro/hantro_hw.h   | 6 +++---
 drivers/staging/media/rkvdec/rkvdec-h264.c | 6 +++---
 include/media/v4l2-h264.h                  | 8 ++++----
 4 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/media/v4l2-core/v4l2-h264.c b/drivers/media/v4l2-core/v4l2-h264.c
index afbfcf78efe4..4b46b36526c0 100644
--- a/drivers/media/v4l2-core/v4l2-h264.c
+++ b/drivers/media/v4l2-core/v4l2-h264.c
@@ -212,7 +212,7 @@ static int v4l2_h264_b1_ref_list_cmp(const void *ptra, const void *ptrb,
  * v4l2_h264_build_p_ref_list() - Build the P reference list
  *
  * @builder: reference list builder context
- * @reflist: 16 sized array used to store the P reference list. Each entry
+ * @reflist: 32 sized array used to store the P reference list. Each entry
  *	     is a v4l2_h264_reference structure
  *
  * This functions builds the P reference lists. This procedure is describe in
@@ -235,9 +235,9 @@ EXPORT_SYMBOL_GPL(v4l2_h264_build_p_ref_list);
  * v4l2_h264_build_b_ref_lists() - Build the B0/B1 reference lists
  *
  * @builder: reference list builder context
- * @b0_reflist: 16 sized array used to store the B0 reference list. Each entry
+ * @b0_reflist: 32 sized array used to store the B0 reference list. Each entry
  *		is a v4l2_h264_reference structure
- * @b1_reflist: 16 sized array used to store the B1 reference list. Each entry
+ * @b1_reflist: 32 sized array used to store the B1 reference list. Each entry
  *		is a v4l2_h264_reference structure
  *
  * This functions builds the B0/B1 reference lists. This procedure is described
diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
index 2bc6b8f088f5..292aaaabaf24 100644
--- a/drivers/staging/media/hantro/hantro_hw.h
+++ b/drivers/staging/media/hantro/hantro_hw.h
@@ -69,9 +69,9 @@ struct hantro_h264_dec_ctrls {
  * @b1:		B1 reflist
  */
 struct hantro_h264_dec_reflists {
-	struct v4l2_h264_reference p[HANTRO_H264_DPB_SIZE];
-	struct v4l2_h264_reference b0[HANTRO_H264_DPB_SIZE];
-	struct v4l2_h264_reference b1[HANTRO_H264_DPB_SIZE];
+	struct v4l2_h264_reference p[V4L2_H264_REF_LIST_LEN];
+	struct v4l2_h264_reference b0[V4L2_H264_REF_LIST_LEN];
+	struct v4l2_h264_reference b1[V4L2_H264_REF_LIST_LEN];
 };
 
 /**
diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
index 3c7f3d87fab4..dff89732ddd0 100644
--- a/drivers/staging/media/rkvdec/rkvdec-h264.c
+++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
@@ -100,9 +100,9 @@ struct rkvdec_h264_priv_tbl {
 #define RKVDEC_H264_DPB_SIZE 16
 
 struct rkvdec_h264_reflists {
-	struct v4l2_h264_reference p[RKVDEC_H264_DPB_SIZE];
-	struct v4l2_h264_reference b0[RKVDEC_H264_DPB_SIZE];
-	struct v4l2_h264_reference b1[RKVDEC_H264_DPB_SIZE];
+	struct v4l2_h264_reference p[V4L2_H264_REF_LIST_LEN];
+	struct v4l2_h264_reference b0[V4L2_H264_REF_LIST_LEN];
+	struct v4l2_h264_reference b1[V4L2_H264_REF_LIST_LEN];
 	u8 num_valid;
 };
 
diff --git a/include/media/v4l2-h264.h b/include/media/v4l2-h264.h
index ef9a894e3c32..e282fb16ac58 100644
--- a/include/media/v4l2-h264.h
+++ b/include/media/v4l2-h264.h
@@ -37,7 +37,7 @@ struct v4l2_h264_reflist_builder {
 		u16 longterm : 1;
 	} refs[V4L2_H264_NUM_DPB_ENTRIES];
 	s32 cur_pic_order_count;
-	struct v4l2_h264_reference unordered_reflist[V4L2_H264_NUM_DPB_ENTRIES];
+	struct v4l2_h264_reference unordered_reflist[V4L2_H264_REF_LIST_LEN];
 	u8 num_valid;
 };
 
@@ -51,9 +51,9 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b,
  * v4l2_h264_build_b_ref_lists() - Build the B0/B1 reference lists
  *
  * @builder: reference list builder context
- * @b0_reflist: 16 sized array used to store the B0 reference list. Each entry
+ * @b0_reflist: 32 sized array used to store the B0 reference list. Each entry
  *		is a v4l2_h264_reference structure
- * @b1_reflist: 16 sized array used to store the B1 reference list. Each entry
+ * @b1_reflist: 32 sized array used to store the B1 reference list. Each entry
  *		is a v4l2_h264_reference structure
  *
  * This functions builds the B0/B1 reference lists. This procedure is described
@@ -70,7 +70,7 @@ v4l2_h264_build_b_ref_lists(const struct v4l2_h264_reflist_builder *builder,
  * v4l2_h264_build_p_ref_list() - Build the P reference list
  *
  * @builder: reference list builder context
- * @reflist: 16 sized array used to store the P reference list. Each entry
+ * @reflist: 32 sized array used to store the P reference list. Each entry
  *	     is a v4l2_h264_reference structure
  *
  * This functions builds the P reference lists. This procedure is describe in
-- 
2.34.1


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 07/24] media: h264: Store current picture fields
  2022-04-26 12:57 [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders Nicolas Dufresne
                   ` (5 preceding siblings ...)
  2022-04-26 12:57   ` Nicolas Dufresne
@ 2022-04-26 12:57 ` Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 08/24] media: h264: Store all fields into the unordered list Nicolas Dufresne
                   ` (16 subsequent siblings)
  23 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Mauro Carvalho Chehab
  Cc: nicolas, linux-media, Sebastian Fricke, linux-kernel

This information, also called picture structure, is required in field
decoding mode to construct reference lists.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
---
 drivers/media/v4l2-core/v4l2-h264.c | 10 +++++++---
 include/media/v4l2-h264.h           |  4 ++++
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/media/v4l2-core/v4l2-h264.c b/drivers/media/v4l2-core/v4l2-h264.c
index 4b46b36526c0..58f18bb0afb6 100644
--- a/drivers/media/v4l2-core/v4l2-h264.c
+++ b/drivers/media/v4l2-core/v4l2-h264.c
@@ -34,13 +34,17 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b,
 	cur_frame_num = dec_params->frame_num;
 
 	memset(b, 0, sizeof(*b));
-	if (!(dec_params->flags & V4L2_H264_DECODE_PARAM_FLAG_FIELD_PIC))
+	if (!(dec_params->flags & V4L2_H264_DECODE_PARAM_FLAG_FIELD_PIC)) {
 		b->cur_pic_order_count = min(dec_params->bottom_field_order_cnt,
 					     dec_params->top_field_order_cnt);
-	else if (dec_params->flags & V4L2_H264_DECODE_PARAM_FLAG_BOTTOM_FIELD)
+		b->cur_pic_fields = V4L2_H264_FRAME_REF;
+	} else if (dec_params->flags & V4L2_H264_DECODE_PARAM_FLAG_BOTTOM_FIELD) {
 		b->cur_pic_order_count = dec_params->bottom_field_order_cnt;
-	else
+		b->cur_pic_fields = V4L2_H264_BOTTOM_FIELD_REF;
+	} else {
 		b->cur_pic_order_count = dec_params->top_field_order_cnt;
+		b->cur_pic_fields = V4L2_H264_TOP_FIELD_REF;
+	}
 
 	for (i = 0; i < V4L2_H264_NUM_DPB_ENTRIES; i++) {
 		u32 pic_order_count;
diff --git a/include/media/v4l2-h264.h b/include/media/v4l2-h264.h
index e282fb16ac58..e165a54c68fa 100644
--- a/include/media/v4l2-h264.h
+++ b/include/media/v4l2-h264.h
@@ -21,6 +21,7 @@
  * @refs.longterm: set to true for a long term reference
  * @refs: array of references
  * @cur_pic_order_count: picture order count of the frame being decoded
+ * @cur_pic_fields: fields present in the frame being decoded
  * @unordered_reflist: unordered list of references. Will be used to generate
  *		       ordered P/B0/B1 lists
  * @num_valid: number of valid references in the refs array
@@ -36,7 +37,10 @@ struct v4l2_h264_reflist_builder {
 		u32 pic_num;
 		u16 longterm : 1;
 	} refs[V4L2_H264_NUM_DPB_ENTRIES];
+
 	s32 cur_pic_order_count;
+	u8 cur_pic_fields;
+
 	struct v4l2_h264_reference unordered_reflist[V4L2_H264_REF_LIST_LEN];
 	u8 num_valid;
 };
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 08/24] media: h264: Store all fields into the unordered list
  2022-04-26 12:57 [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders Nicolas Dufresne
                   ` (6 preceding siblings ...)
  2022-04-26 12:57 ` [PATCH v4 07/24] media: h264: Store current picture fields Nicolas Dufresne
@ 2022-04-26 12:57 ` Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 09/24] media: v4l2: Trace calculated p/b0/b1 initial reflist Nicolas Dufresne
                   ` (15 subsequent siblings)
  23 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Mauro Carvalho Chehab
  Cc: nicolas, linux-media, Sebastian Fricke, linux-kernel

When the current picture is a field, store each field into the
unordered_list and preserve both top and bottom picture order
count.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
---
 drivers/media/v4l2-core/v4l2-h264.c | 65 +++++++++++++++++++++--------
 include/media/v4l2-h264.h           |  6 ++-
 2 files changed, 51 insertions(+), 20 deletions(-)

diff --git a/drivers/media/v4l2-core/v4l2-h264.c b/drivers/media/v4l2-core/v4l2-h264.c
index 58f18bb0afb6..38d8dbda0045 100644
--- a/drivers/media/v4l2-core/v4l2-h264.c
+++ b/drivers/media/v4l2-core/v4l2-h264.c
@@ -47,8 +47,6 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b,
 	}
 
 	for (i = 0; i < V4L2_H264_NUM_DPB_ENTRIES; i++) {
-		u32 pic_order_count;
-
 		if (!(dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE))
 			continue;
 
@@ -59,8 +57,6 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b,
 		/*
 		 * Handle frame_num wraparound as described in section
 		 * '8.2.4.1 Decoding process for picture numbers' of the spec.
-		 * TODO: This logic will have to be adjusted when we start
-		 * supporting interlaced content.
 		 * For long term references, frame_num is set to
 		 * long_term_frame_idx which requires no wrapping.
 		 */
@@ -70,17 +66,33 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b,
 		else
 			b->refs[i].frame_num = dpb[i].frame_num;
 
-		if (dpb[i].fields == V4L2_H264_FRAME_REF)
-			pic_order_count = min(dpb[i].top_field_order_cnt,
-					      dpb[i].bottom_field_order_cnt);
-		else if (dpb[i].fields & V4L2_H264_BOTTOM_FIELD_REF)
-			pic_order_count = dpb[i].bottom_field_order_cnt;
-		else
-			pic_order_count = dpb[i].top_field_order_cnt;
+		b->refs[i].top_field_order_cnt = dpb[i].top_field_order_cnt;
+		b->refs[i].bottom_field_order_cnt = dpb[i].bottom_field_order_cnt;
+
+		if (b->cur_pic_fields == V4L2_H264_FRAME_REF) {
+			u8 fields = V4L2_H264_FRAME_REF;
+
+			b->unordered_reflist[b->num_valid].index = i;
+			b->unordered_reflist[b->num_valid].fields = fields;
+			b->num_valid++;
+			continue;
+		}
+
+		if (dpb[i].fields & V4L2_H264_TOP_FIELD_REF) {
+			u8 fields = V4L2_H264_TOP_FIELD_REF;
+
+			b->unordered_reflist[b->num_valid].index = i;
+			b->unordered_reflist[b->num_valid].fields = fields;
+			b->num_valid++;
+		}
 
-		b->refs[i].pic_order_count = pic_order_count;
-		b->unordered_reflist[b->num_valid].index = i;
-		b->num_valid++;
+		if (dpb[i].fields & V4L2_H264_BOTTOM_FIELD_REF) {
+			u8 fields = V4L2_H264_BOTTOM_FIELD_REF;
+
+			b->unordered_reflist[b->num_valid].index = i;
+			b->unordered_reflist[b->num_valid].fields = fields;
+			b->num_valid++;
+		}
 	}
 
 	for (i = b->num_valid; i < ARRAY_SIZE(b->unordered_reflist); i++)
@@ -88,6 +100,23 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b,
 }
 EXPORT_SYMBOL_GPL(v4l2_h264_init_reflist_builder);
 
+static s32 v4l2_h264_get_poc(const struct v4l2_h264_reflist_builder *b,
+			     const struct v4l2_h264_reference *ref)
+{
+	switch (ref->fields) {
+	case V4L2_H264_FRAME_REF:
+		return min(b->refs[ref->index].top_field_order_cnt,
+				b->refs[ref->index].bottom_field_order_cnt);
+	case V4L2_H264_TOP_FIELD_REF:
+		return b->refs[ref->index].top_field_order_cnt;
+	case V4L2_H264_BOTTOM_FIELD_REF:
+		return b->refs[ref->index].bottom_field_order_cnt;
+	}
+
+	/* not reached */
+	return 0;
+}
+
 static int v4l2_h264_p_ref_list_cmp(const void *ptra, const void *ptrb,
 				    const void *data)
 {
@@ -150,8 +179,8 @@ static int v4l2_h264_b0_ref_list_cmp(const void *ptra, const void *ptrb,
 		       builder->refs[idxb].pic_num ?
 		       -1 : 1;
 
-	poca = builder->refs[idxa].pic_order_count;
-	pocb = builder->refs[idxb].pic_order_count;
+	poca = v4l2_h264_get_poc(builder, ptra);
+	pocb = v4l2_h264_get_poc(builder, ptrb);
 
 	/*
 	 * Short term pics with POC < cur POC first in POC descending order
@@ -195,8 +224,8 @@ static int v4l2_h264_b1_ref_list_cmp(const void *ptra, const void *ptrb,
 		       builder->refs[idxb].pic_num ?
 		       -1 : 1;
 
-	poca = builder->refs[idxa].pic_order_count;
-	pocb = builder->refs[idxb].pic_order_count;
+	poca = v4l2_h264_get_poc(builder, ptra);
+	pocb = v4l2_h264_get_poc(builder, ptrb);
 
 	/*
 	 * Short term pics with POC > cur POC first in POC ascending order
diff --git a/include/media/v4l2-h264.h b/include/media/v4l2-h264.h
index e165a54c68fa..4cef717b3f18 100644
--- a/include/media/v4l2-h264.h
+++ b/include/media/v4l2-h264.h
@@ -15,7 +15,8 @@
 /**
  * struct v4l2_h264_reflist_builder - Reference list builder object
  *
- * @refs.pic_order_count: reference picture order count
+ * @refs.top_field_order_cnt: top field order count
+ * @refs.bottom_field_order_cnt: bottom field order count
  * @refs.frame_num: reference frame number
  * @refs.pic_num: reference picture number
  * @refs.longterm: set to true for a long term reference
@@ -32,7 +33,8 @@
  */
 struct v4l2_h264_reflist_builder {
 	struct {
-		s32 pic_order_count;
+		s32 top_field_order_cnt;
+		s32 bottom_field_order_cnt;
 		int frame_num;
 		u32 pic_num;
 		u16 longterm : 1;
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 09/24] media: v4l2: Trace calculated p/b0/b1 initial reflist
  2022-04-26 12:57 [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders Nicolas Dufresne
                   ` (7 preceding siblings ...)
  2022-04-26 12:57 ` [PATCH v4 08/24] media: h264: Store all fields into the unordered list Nicolas Dufresne
@ 2022-04-26 12:57 ` Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 10/24] media: h264: Sort p/b reflist using frame_num Nicolas Dufresne
                   ` (14 subsequent siblings)
  23 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Mauro Carvalho Chehab
  Cc: nicolas, linux-media, Sebastian Fricke, linux-kernel

Add debug print statements to print the content of P & B reference
lists, to verify that the ordering of the generated reference lists is
correct. This is especially important for the field decoding mode,
where sorting is more complex.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Tested-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
---
 drivers/media/v4l2-core/v4l2-h264.c | 100 ++++++++++++++++++++++++++++
 1 file changed, 100 insertions(+)

diff --git a/drivers/media/v4l2-core/v4l2-h264.c b/drivers/media/v4l2-core/v4l2-h264.c
index 38d8dbda0045..853f54e0fe67 100644
--- a/drivers/media/v4l2-core/v4l2-h264.c
+++ b/drivers/media/v4l2-core/v4l2-h264.c
@@ -12,6 +12,12 @@
 
 #include <media/v4l2-h264.h>
 
+/*
+ * Size of the tempory buffer allocated when printing reference lists. The
+ * output will be truncated if the size is too small.
+ */
+static const int tmp_str_size = 1024;
+
 /**
  * v4l2_h264_init_reflist_builder() - Initialize a P/B0/B1 reference list
  *				      builder
@@ -241,6 +247,95 @@ static int v4l2_h264_b1_ref_list_cmp(const void *ptra, const void *ptrb,
 	return poca < pocb ? -1 : 1;
 }
 
+static char ref_type_to_char(u8 ref_type)
+{
+	switch (ref_type) {
+	case V4L2_H264_FRAME_REF:
+		return 'f';
+	case V4L2_H264_TOP_FIELD_REF:
+		return 't';
+	case V4L2_H264_BOTTOM_FIELD_REF:
+		return 'b';
+	}
+
+	return '?';
+}
+
+static const char *format_ref_list_p(const struct v4l2_h264_reflist_builder *builder,
+				     struct v4l2_h264_reference *reflist,
+				     char **out_str)
+{
+	int n = 0, i;
+
+	*out_str = kmalloc(tmp_str_size, GFP_KERNEL);
+
+	n += snprintf(*out_str + n, tmp_str_size - n, "|");
+
+	for (i = 0; i < builder->num_valid; i++) {
+		/* this is pic_num for frame and frame_num (wrapped) for field,
+		 * but for frame pic_num is equal to frame_num (wrapped).
+		 */
+		int frame_num = builder->refs[reflist[i].index].frame_num;
+		bool longterm = builder->refs[reflist[i].index].longterm;
+
+		n += scnprintf(*out_str + n, tmp_str_size - n, "%i%c%c|",
+			       frame_num, longterm ? 'l' : 's',
+			       ref_type_to_char(reflist[i].fields));
+	}
+
+	return *out_str;
+}
+
+static void print_ref_list_p(const struct v4l2_h264_reflist_builder *builder,
+			     struct v4l2_h264_reference *reflist)
+{
+	char *buf = NULL;
+
+	pr_debug("ref_pic_list_p (cur_poc %u%c) %s\n",
+		 builder->cur_pic_order_count,
+		 ref_type_to_char(builder->cur_pic_fields),
+		 format_ref_list_p(builder, reflist, &buf));
+
+	kfree(buf);
+}
+
+static const char *format_ref_list_b(const struct v4l2_h264_reflist_builder *builder,
+				     struct v4l2_h264_reference *reflist,
+				     char **out_str)
+{
+	int n = 0, i;
+
+	*out_str = kmalloc(tmp_str_size, GFP_KERNEL);
+
+	n += snprintf(*out_str + n, tmp_str_size - n, "|");
+
+	for (i = 0; i < builder->num_valid; i++) {
+		int frame_num = builder->refs[reflist[i].index].frame_num;
+		u32 poc = v4l2_h264_get_poc(builder, reflist + i);
+		bool longterm = builder->refs[reflist[i].index].longterm;
+
+		n += scnprintf(*out_str + n, tmp_str_size - n, "%i%c%c|",
+			       longterm ? frame_num : poc,
+			       longterm ? 'l' : 's',
+			       ref_type_to_char(reflist[i].fields));
+	}
+
+	return *out_str;
+}
+
+static void print_ref_list_b(const struct v4l2_h264_reflist_builder *builder,
+			     struct v4l2_h264_reference *reflist, u8 list_num)
+{
+	char *buf = NULL;
+
+	pr_debug("ref_pic_list_b%u (cur_poc %u%c) %s",
+		 list_num, builder->cur_pic_order_count,
+		 ref_type_to_char(builder->cur_pic_fields),
+		 format_ref_list_b(builder, reflist, &buf));
+
+	kfree(buf);
+}
+
 /**
  * v4l2_h264_build_p_ref_list() - Build the P reference list
  *
@@ -261,6 +356,8 @@ v4l2_h264_build_p_ref_list(const struct v4l2_h264_reflist_builder *builder,
 	       sizeof(builder->unordered_reflist[0]) * builder->num_valid);
 	sort_r(reflist, builder->num_valid, sizeof(*reflist),
 	       v4l2_h264_p_ref_list_cmp, NULL, builder);
+
+	print_ref_list_p(builder, reflist);
 }
 EXPORT_SYMBOL_GPL(v4l2_h264_build_p_ref_list);
 
@@ -296,6 +393,9 @@ v4l2_h264_build_b_ref_lists(const struct v4l2_h264_reflist_builder *builder,
 	if (builder->num_valid > 1 &&
 	    !memcmp(b1_reflist, b0_reflist, builder->num_valid))
 		swap(b1_reflist[0], b1_reflist[1]);
+
+	print_ref_list_b(builder, b0_reflist, 0);
+	print_ref_list_b(builder, b1_reflist, 1);
 }
 EXPORT_SYMBOL_GPL(v4l2_h264_build_b_ref_lists);
 
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 10/24] media: h264: Sort p/b reflist using frame_num
  2022-04-26 12:57 [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders Nicolas Dufresne
                   ` (8 preceding siblings ...)
  2022-04-26 12:57 ` [PATCH v4 09/24] media: v4l2: Trace calculated p/b0/b1 initial reflist Nicolas Dufresne
@ 2022-04-26 12:57 ` Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 11/24] media: v4l2: Reorder field reflist Nicolas Dufresne
                   ` (13 subsequent siblings)
  23 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Mauro Carvalho Chehab
  Cc: nicolas, linux-media, Sebastian Fricke, linux-kernel

In the reference list builder, frame_num refers to FrameNumWrap
in the spec, which is the same as the pic_num for frame decoding.
The same applies for long_term_pic_num and long_term_frame_idx.

Sort all type of references by frame_num so the sort can be reused
for fields reflist were the sorting is done using frame_num instead.
In short, pic_num is never actually used for building reference
lists.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
---
 drivers/media/v4l2-core/v4l2-h264.c | 23 +++++++++++++----------
 include/media/v4l2-h264.h           |  2 --
 2 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/drivers/media/v4l2-core/v4l2-h264.c b/drivers/media/v4l2-core/v4l2-h264.c
index 853f54e0fe67..fe215035d9e8 100644
--- a/drivers/media/v4l2-core/v4l2-h264.c
+++ b/drivers/media/v4l2-core/v4l2-h264.c
@@ -56,7 +56,6 @@ v4l2_h264_init_reflist_builder(struct v4l2_h264_reflist_builder *b,
 		if (!(dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE))
 			continue;
 
-		b->refs[i].pic_num = dpb[i].pic_num;
 		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM)
 			b->refs[i].longterm = true;
 
@@ -145,15 +144,19 @@ static int v4l2_h264_p_ref_list_cmp(const void *ptra, const void *ptrb,
 	}
 
 	/*
-	 * Short term pics in descending pic num order, long term ones in
-	 * ascending order.
+	 * For frames, short term pics are in descending pic num order and long
+	 * term ones in ascending order. For fields, the same direction is used
+	 * but with frame_num (wrapped). For frames, the value of pic_num and
+	 * frame_num are the same (see formula (8-28) and (8-29)). For this
+	 * reason we can use frame_num only and share this function between
+	 * frames and fields reflist.
 	 */
 	if (!builder->refs[idxa].longterm)
 		return builder->refs[idxb].frame_num <
 		       builder->refs[idxa].frame_num ?
 		       -1 : 1;
 
-	return builder->refs[idxa].pic_num < builder->refs[idxb].pic_num ?
+	return builder->refs[idxa].frame_num < builder->refs[idxb].frame_num ?
 	       -1 : 1;
 }
 
@@ -179,10 +182,10 @@ static int v4l2_h264_b0_ref_list_cmp(const void *ptra, const void *ptrb,
 			return 1;
 	}
 
-	/* Long term pics in ascending pic num order. */
+	/* Long term pics in ascending frame num order. */
 	if (builder->refs[idxa].longterm)
-		return builder->refs[idxa].pic_num <
-		       builder->refs[idxb].pic_num ?
+		return builder->refs[idxa].frame_num <
+		       builder->refs[idxb].frame_num ?
 		       -1 : 1;
 
 	poca = v4l2_h264_get_poc(builder, ptra);
@@ -224,10 +227,10 @@ static int v4l2_h264_b1_ref_list_cmp(const void *ptra, const void *ptrb,
 			return 1;
 	}
 
-	/* Long term pics in ascending pic num order. */
+	/* Long term pics in ascending frame num order. */
 	if (builder->refs[idxa].longterm)
-		return builder->refs[idxa].pic_num <
-		       builder->refs[idxb].pic_num ?
+		return builder->refs[idxa].frame_num <
+		       builder->refs[idxb].frame_num ?
 		       -1 : 1;
 
 	poca = v4l2_h264_get_poc(builder, ptra);
diff --git a/include/media/v4l2-h264.h b/include/media/v4l2-h264.h
index 4cef717b3f18..0d9eaa956123 100644
--- a/include/media/v4l2-h264.h
+++ b/include/media/v4l2-h264.h
@@ -18,7 +18,6 @@
  * @refs.top_field_order_cnt: top field order count
  * @refs.bottom_field_order_cnt: bottom field order count
  * @refs.frame_num: reference frame number
- * @refs.pic_num: reference picture number
  * @refs.longterm: set to true for a long term reference
  * @refs: array of references
  * @cur_pic_order_count: picture order count of the frame being decoded
@@ -36,7 +35,6 @@ struct v4l2_h264_reflist_builder {
 		s32 top_field_order_cnt;
 		s32 bottom_field_order_cnt;
 		int frame_num;
-		u32 pic_num;
 		u16 longterm : 1;
 	} refs[V4L2_H264_NUM_DPB_ENTRIES];
 
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 11/24] media: v4l2: Reorder field reflist
  2022-04-26 12:57 [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders Nicolas Dufresne
                   ` (9 preceding siblings ...)
  2022-04-26 12:57 ` [PATCH v4 10/24] media: h264: Sort p/b reflist using frame_num Nicolas Dufresne
@ 2022-04-26 12:57 ` Nicolas Dufresne
  2022-04-26 12:57   ` Nicolas Dufresne
                   ` (12 subsequent siblings)
  23 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Mauro Carvalho Chehab
  Cc: nicolas, linux-media, Sebastian Fricke, linux-kernel

As per spec, the field reflist requires interleaving top and bottom
field in a specific way that does not fit inside the sort operation.
The process consist of alternating references parity, starting with
a reference of the same parity as the current picture. This
processs is done twice, once for short term references and a second
time for the long term references.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
---
 drivers/media/v4l2-core/v4l2-h264.c | 42 +++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/drivers/media/v4l2-core/v4l2-h264.c b/drivers/media/v4l2-core/v4l2-h264.c
index fe215035d9e8..72bd64f65198 100644
--- a/drivers/media/v4l2-core/v4l2-h264.c
+++ b/drivers/media/v4l2-core/v4l2-h264.c
@@ -250,6 +250,40 @@ static int v4l2_h264_b1_ref_list_cmp(const void *ptra, const void *ptrb,
 	return poca < pocb ? -1 : 1;
 }
 
+/*
+ * The references need to be reordered so that references are alternating
+ * between top and bottom field references starting with the current picture
+ * parity. This has to be done for short term and long term references
+ * separately.
+ */
+static void reorder_field_reflist(const struct v4l2_h264_reflist_builder *b,
+				  struct v4l2_h264_reference *reflist)
+{
+	struct v4l2_h264_reference tmplist[V4L2_H264_REF_LIST_LEN];
+	u8 lt, i = 0, j = 0, k = 0;
+
+	memcpy(tmplist, reflist, sizeof(tmplist[0]) * b->num_valid);
+
+	for (lt = 0; lt <= 1; lt++) {
+		do {
+			for (; i < b->num_valid && b->refs[tmplist[i].index].longterm == lt; i++) {
+				if (tmplist[i].fields == b->cur_pic_fields) {
+					reflist[k++] = tmplist[i++];
+					break;
+				}
+			}
+
+			for (; j < b->num_valid && b->refs[tmplist[j].index].longterm == lt; j++) {
+				if (tmplist[j].fields != b->cur_pic_fields) {
+					reflist[k++] = tmplist[j++];
+					break;
+				}
+			}
+		} while ((i < b->num_valid && b->refs[tmplist[i].index].longterm == lt) ||
+			 (j < b->num_valid && b->refs[tmplist[j].index].longterm == lt));
+	}
+}
+
 static char ref_type_to_char(u8 ref_type)
 {
 	switch (ref_type) {
@@ -360,6 +394,9 @@ v4l2_h264_build_p_ref_list(const struct v4l2_h264_reflist_builder *builder,
 	sort_r(reflist, builder->num_valid, sizeof(*reflist),
 	       v4l2_h264_p_ref_list_cmp, NULL, builder);
 
+	if (builder->cur_pic_fields != V4L2_H264_FRAME_REF)
+		reorder_field_reflist(builder, reflist);
+
 	print_ref_list_p(builder, reflist);
 }
 EXPORT_SYMBOL_GPL(v4l2_h264_build_p_ref_list);
@@ -393,6 +430,11 @@ v4l2_h264_build_b_ref_lists(const struct v4l2_h264_reflist_builder *builder,
 	sort_r(b1_reflist, builder->num_valid, sizeof(*b1_reflist),
 	       v4l2_h264_b1_ref_list_cmp, NULL, builder);
 
+	if (builder->cur_pic_fields != V4L2_H264_FRAME_REF) {
+		reorder_field_reflist(builder, b0_reflist);
+		reorder_field_reflist(builder, b1_reflist);
+	}
+
 	if (builder->num_valid > 1 &&
 	    !memcmp(b1_reflist, b0_reflist, builder->num_valid))
 		swap(b1_reflist[0], b1_reflist[1]);
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 12/24] media: rkvdec: Stop overclocking the decoder
  2022-04-26 12:57 [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders Nicolas Dufresne
@ 2022-04-26 12:57   ` Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 02/24] media: v4l2-mem2mem: Trace on implicit un-hold Nicolas Dufresne
                     ` (22 subsequent siblings)
  23 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Mauro Carvalho Chehab, Greg Kroah-Hartman,
	Hans Verkuil, Boris Brezillon
  Cc: nicolas, linux-media, Sebastian Fricke, Mauro Carvalho Chehab,
	linux-rockchip, linux-staging, linux-kernel

While this overclock hack seems to work on some implementations
(some ChromeBooks, RockPi4) it also causes instability on other
implementations (notably LibreComputer Renegade, but there were more
reports in the LibreELEC project, where this has been removed). While
performance is indeed affected (tested with GStreamer), 4K playback
still works as long as you don't operate in lock step and keep at
least 1 frame ahead of time in the decode queue.

After discussion with ChromeOS members, it would seem that their
implementation indeed used to synchronously decode each frame, so
this hack was simply compensating for their code being less
efficient. In my opinion, this hack should not have been included
upstream.

Fixes: cd33c830448ba ("media: rkvdec: Add the rkvdec driver")
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
---
 drivers/staging/media/rkvdec/rkvdec.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/staging/media/rkvdec/rkvdec.c b/drivers/staging/media/rkvdec/rkvdec.c
index c0cf3488f970..2df8cf4883e2 100644
--- a/drivers/staging/media/rkvdec/rkvdec.c
+++ b/drivers/staging/media/rkvdec/rkvdec.c
@@ -1027,12 +1027,6 @@ static int rkvdec_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	/*
-	 * Bump ACLK to max. possible freq. (500 MHz) to improve performance
-	 * When 4k video playback.
-	 */
-	clk_set_rate(rkvdec->clocks[0].clk, 500 * 1000 * 1000);
-
 	rkvdec->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(rkvdec->regs))
 		return PTR_ERR(rkvdec->regs);
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 12/24] media: rkvdec: Stop overclocking the decoder
@ 2022-04-26 12:57   ` Nicolas Dufresne
  0 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Mauro Carvalho Chehab, Greg Kroah-Hartman,
	Hans Verkuil, Boris Brezillon
  Cc: nicolas, linux-media, Sebastian Fricke, Mauro Carvalho Chehab,
	linux-rockchip, linux-staging, linux-kernel

While this overclock hack seems to work on some implementations
(some ChromeBooks, RockPi4) it also causes instability on other
implementations (notably LibreComputer Renegade, but there were more
reports in the LibreELEC project, where this has been removed). While
performance is indeed affected (tested with GStreamer), 4K playback
still works as long as you don't operate in lock step and keep at
least 1 frame ahead of time in the decode queue.

After discussion with ChromeOS members, it would seem that their
implementation indeed used to synchronously decode each frame, so
this hack was simply compensating for their code being less
efficient. In my opinion, this hack should not have been included
upstream.

Fixes: cd33c830448ba ("media: rkvdec: Add the rkvdec driver")
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
---
 drivers/staging/media/rkvdec/rkvdec.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/staging/media/rkvdec/rkvdec.c b/drivers/staging/media/rkvdec/rkvdec.c
index c0cf3488f970..2df8cf4883e2 100644
--- a/drivers/staging/media/rkvdec/rkvdec.c
+++ b/drivers/staging/media/rkvdec/rkvdec.c
@@ -1027,12 +1027,6 @@ static int rkvdec_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	/*
-	 * Bump ACLK to max. possible freq. (500 MHz) to improve performance
-	 * When 4k video playback.
-	 */
-	clk_set_rate(rkvdec->clocks[0].clk, 500 * 1000 * 1000);
-
 	rkvdec->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(rkvdec->regs))
 		return PTR_ERR(rkvdec->regs);
-- 
2.34.1


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 13/24] media: rkvdec: h264: Fix dpb_valid implementation
  2022-04-26 12:57 [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders Nicolas Dufresne
@ 2022-04-26 12:57   ` Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 02/24] media: v4l2-mem2mem: Trace on implicit un-hold Nicolas Dufresne
                     ` (22 subsequent siblings)
  23 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Mauro Carvalho Chehab, Greg Kroah-Hartman,
	Boris Brezillon, Hans Verkuil
  Cc: nicolas, linux-media, Sebastian Fricke, Mauro Carvalho Chehab,
	linux-rockchip, linux-staging, linux-kernel

The ref builder only provided references that are marked as valid in the
dpb. Thus the current implementation of dpb_valid would always set the
flag to 1. This is not representing missing frames (this is called
'non-existing' pictures in the spec). In some context, these non-existing
pictures still need to occupy a slot in the reference list according to
the spec.

Fixes: cd33c830448ba ("media: rkvdec: Add the rkvdec driver")
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
---
 drivers/staging/media/rkvdec/rkvdec-h264.c | 33 ++++++++++++++++------
 1 file changed, 24 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
index dff89732ddd0..bcde37d72244 100644
--- a/drivers/staging/media/rkvdec/rkvdec-h264.c
+++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
@@ -112,6 +112,7 @@ struct rkvdec_h264_run {
 	const struct v4l2_ctrl_h264_sps *sps;
 	const struct v4l2_ctrl_h264_pps *pps;
 	const struct v4l2_ctrl_h264_scaling_matrix *scaling_matrix;
+	int ref_buf_idx[V4L2_H264_NUM_DPB_ENTRIES];
 };
 
 struct rkvdec_h264_ctx {
@@ -725,6 +726,26 @@ static void assemble_hw_pps(struct rkvdec_ctx *ctx,
 	}
 }
 
+static void lookup_ref_buf_idx(struct rkvdec_ctx *ctx,
+			       struct rkvdec_h264_run *run)
+{
+	const struct v4l2_ctrl_h264_decode_params *dec_params = run->decode_params;
+	u32 i;
+
+	for (i = 0; i < ARRAY_SIZE(dec_params->dpb); i++) {
+		struct v4l2_m2m_ctx *m2m_ctx = ctx->fh.m2m_ctx;
+		const struct v4l2_h264_dpb_entry *dpb = run->decode_params->dpb;
+		struct vb2_queue *cap_q = &m2m_ctx->cap_q_ctx.q;
+		int buf_idx = -1;
+
+		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)
+			buf_idx = vb2_find_timestamp(cap_q,
+						     dpb[i].reference_ts, 0);
+
+		run->ref_buf_idx[i] = buf_idx;
+	}
+}
+
 static void assemble_hw_rps(struct rkvdec_ctx *ctx,
 			    struct rkvdec_h264_run *run)
 {
@@ -762,7 +783,7 @@ static void assemble_hw_rps(struct rkvdec_ctx *ctx,
 
 	for (j = 0; j < RKVDEC_NUM_REFLIST; j++) {
 		for (i = 0; i < h264_ctx->reflists.num_valid; i++) {
-			u8 dpb_valid = 0;
+			bool dpb_valid = run->ref_buf_idx[i] >= 0;
 			u8 idx = 0;
 
 			switch (j) {
@@ -779,8 +800,6 @@ static void assemble_hw_rps(struct rkvdec_ctx *ctx,
 
 			if (idx >= ARRAY_SIZE(dec_params->dpb))
 				continue;
-			dpb_valid = !!(dpb[idx].flags &
-				       V4L2_H264_DPB_ENTRY_FLAG_ACTIVE);
 
 			set_ps_field(hw_rps, DPB_INFO(i, j),
 				     idx | dpb_valid << 4);
@@ -859,13 +878,8 @@ get_ref_buf(struct rkvdec_ctx *ctx, struct rkvdec_h264_run *run,
 	    unsigned int dpb_idx)
 {
 	struct v4l2_m2m_ctx *m2m_ctx = ctx->fh.m2m_ctx;
-	const struct v4l2_h264_dpb_entry *dpb = run->decode_params->dpb;
 	struct vb2_queue *cap_q = &m2m_ctx->cap_q_ctx.q;
-	int buf_idx = -1;
-
-	if (dpb[dpb_idx].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)
-		buf_idx = vb2_find_timestamp(cap_q,
-					     dpb[dpb_idx].reference_ts, 0);
+	int buf_idx = run->ref_buf_idx[dpb_idx];
 
 	/*
 	 * If a DPB entry is unused or invalid, address of current destination
@@ -1102,6 +1116,7 @@ static int rkvdec_h264_run(struct rkvdec_ctx *ctx)
 
 	assemble_hw_scaling_list(ctx, &run);
 	assemble_hw_pps(ctx, &run);
+	lookup_ref_buf_idx(ctx, &run);
 	assemble_hw_rps(ctx, &run);
 	config_registers(ctx, &run);
 
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 13/24] media: rkvdec: h264: Fix dpb_valid implementation
@ 2022-04-26 12:57   ` Nicolas Dufresne
  0 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Mauro Carvalho Chehab, Greg Kroah-Hartman,
	Boris Brezillon, Hans Verkuil
  Cc: nicolas, linux-media, Sebastian Fricke, Mauro Carvalho Chehab,
	linux-rockchip, linux-staging, linux-kernel

The ref builder only provided references that are marked as valid in the
dpb. Thus the current implementation of dpb_valid would always set the
flag to 1. This is not representing missing frames (this is called
'non-existing' pictures in the spec). In some context, these non-existing
pictures still need to occupy a slot in the reference list according to
the spec.

Fixes: cd33c830448ba ("media: rkvdec: Add the rkvdec driver")
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
---
 drivers/staging/media/rkvdec/rkvdec-h264.c | 33 ++++++++++++++++------
 1 file changed, 24 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
index dff89732ddd0..bcde37d72244 100644
--- a/drivers/staging/media/rkvdec/rkvdec-h264.c
+++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
@@ -112,6 +112,7 @@ struct rkvdec_h264_run {
 	const struct v4l2_ctrl_h264_sps *sps;
 	const struct v4l2_ctrl_h264_pps *pps;
 	const struct v4l2_ctrl_h264_scaling_matrix *scaling_matrix;
+	int ref_buf_idx[V4L2_H264_NUM_DPB_ENTRIES];
 };
 
 struct rkvdec_h264_ctx {
@@ -725,6 +726,26 @@ static void assemble_hw_pps(struct rkvdec_ctx *ctx,
 	}
 }
 
+static void lookup_ref_buf_idx(struct rkvdec_ctx *ctx,
+			       struct rkvdec_h264_run *run)
+{
+	const struct v4l2_ctrl_h264_decode_params *dec_params = run->decode_params;
+	u32 i;
+
+	for (i = 0; i < ARRAY_SIZE(dec_params->dpb); i++) {
+		struct v4l2_m2m_ctx *m2m_ctx = ctx->fh.m2m_ctx;
+		const struct v4l2_h264_dpb_entry *dpb = run->decode_params->dpb;
+		struct vb2_queue *cap_q = &m2m_ctx->cap_q_ctx.q;
+		int buf_idx = -1;
+
+		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)
+			buf_idx = vb2_find_timestamp(cap_q,
+						     dpb[i].reference_ts, 0);
+
+		run->ref_buf_idx[i] = buf_idx;
+	}
+}
+
 static void assemble_hw_rps(struct rkvdec_ctx *ctx,
 			    struct rkvdec_h264_run *run)
 {
@@ -762,7 +783,7 @@ static void assemble_hw_rps(struct rkvdec_ctx *ctx,
 
 	for (j = 0; j < RKVDEC_NUM_REFLIST; j++) {
 		for (i = 0; i < h264_ctx->reflists.num_valid; i++) {
-			u8 dpb_valid = 0;
+			bool dpb_valid = run->ref_buf_idx[i] >= 0;
 			u8 idx = 0;
 
 			switch (j) {
@@ -779,8 +800,6 @@ static void assemble_hw_rps(struct rkvdec_ctx *ctx,
 
 			if (idx >= ARRAY_SIZE(dec_params->dpb))
 				continue;
-			dpb_valid = !!(dpb[idx].flags &
-				       V4L2_H264_DPB_ENTRY_FLAG_ACTIVE);
 
 			set_ps_field(hw_rps, DPB_INFO(i, j),
 				     idx | dpb_valid << 4);
@@ -859,13 +878,8 @@ get_ref_buf(struct rkvdec_ctx *ctx, struct rkvdec_h264_run *run,
 	    unsigned int dpb_idx)
 {
 	struct v4l2_m2m_ctx *m2m_ctx = ctx->fh.m2m_ctx;
-	const struct v4l2_h264_dpb_entry *dpb = run->decode_params->dpb;
 	struct vb2_queue *cap_q = &m2m_ctx->cap_q_ctx.q;
-	int buf_idx = -1;
-
-	if (dpb[dpb_idx].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)
-		buf_idx = vb2_find_timestamp(cap_q,
-					     dpb[dpb_idx].reference_ts, 0);
+	int buf_idx = run->ref_buf_idx[dpb_idx];
 
 	/*
 	 * If a DPB entry is unused or invalid, address of current destination
@@ -1102,6 +1116,7 @@ static int rkvdec_h264_run(struct rkvdec_ctx *ctx)
 
 	assemble_hw_scaling_list(ctx, &run);
 	assemble_hw_pps(ctx, &run);
+	lookup_ref_buf_idx(ctx, &run);
 	assemble_hw_rps(ctx, &run);
 	config_registers(ctx, &run);
 
-- 
2.34.1


_______________________________________________
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Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 14/24] media: rkvdec: h264: Fix bit depth wrap in pps packet
  2022-04-26 12:57 [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders Nicolas Dufresne
@ 2022-04-26 12:57   ` Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 02/24] media: v4l2-mem2mem: Trace on implicit un-hold Nicolas Dufresne
                     ` (22 subsequent siblings)
  23 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Mauro Carvalho Chehab, Greg Kroah-Hartman,
	Hans Verkuil, Boris Brezillon
  Cc: nicolas, Jonas Karlman, linux-media, Ezequiel Garcia,
	Mauro Carvalho Chehab, linux-rockchip, linux-staging,
	linux-kernel

From: Jonas Karlman <jonas@kwiboo.se>

The luma and chroma bit depth fields in the pps packet are 3 bits wide.
8 is wrongly added to the bit depth values written to these 3 bit fields.
Because only the 3 LSB are written, the hardware was configured
correctly.

Correct this by not adding 8 to the luma and chroma bit depth value.

Fixes: cd33c830448ba ("media: rkvdec: Add the rkvdec driver")
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>
---
 drivers/staging/media/rkvdec/rkvdec-h264.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
index bcde37d72244..8d44a884a52e 100644
--- a/drivers/staging/media/rkvdec/rkvdec-h264.c
+++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
@@ -662,8 +662,8 @@ static void assemble_hw_pps(struct rkvdec_ctx *ctx,
 	WRITE_PPS(0xff, PROFILE_IDC);
 	WRITE_PPS(1, CONSTRAINT_SET3_FLAG);
 	WRITE_PPS(sps->chroma_format_idc, CHROMA_FORMAT_IDC);
-	WRITE_PPS(sps->bit_depth_luma_minus8 + 8, BIT_DEPTH_LUMA);
-	WRITE_PPS(sps->bit_depth_chroma_minus8 + 8, BIT_DEPTH_CHROMA);
+	WRITE_PPS(sps->bit_depth_luma_minus8, BIT_DEPTH_LUMA);
+	WRITE_PPS(sps->bit_depth_chroma_minus8, BIT_DEPTH_CHROMA);
 	WRITE_PPS(0, QPPRIME_Y_ZERO_TRANSFORM_BYPASS_FLAG);
 	WRITE_PPS(sps->log2_max_frame_num_minus4, LOG2_MAX_FRAME_NUM_MINUS4);
 	WRITE_PPS(sps->max_num_ref_frames, MAX_NUM_REF_FRAMES);
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 14/24] media: rkvdec: h264: Fix bit depth wrap in pps packet
@ 2022-04-26 12:57   ` Nicolas Dufresne
  0 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Mauro Carvalho Chehab, Greg Kroah-Hartman,
	Hans Verkuil, Boris Brezillon
  Cc: nicolas, Jonas Karlman, linux-media, Ezequiel Garcia,
	Mauro Carvalho Chehab, linux-rockchip, linux-staging,
	linux-kernel

From: Jonas Karlman <jonas@kwiboo.se>

The luma and chroma bit depth fields in the pps packet are 3 bits wide.
8 is wrongly added to the bit depth values written to these 3 bit fields.
Because only the 3 LSB are written, the hardware was configured
correctly.

Correct this by not adding 8 to the luma and chroma bit depth value.

Fixes: cd33c830448ba ("media: rkvdec: Add the rkvdec driver")
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>
---
 drivers/staging/media/rkvdec/rkvdec-h264.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
index bcde37d72244..8d44a884a52e 100644
--- a/drivers/staging/media/rkvdec/rkvdec-h264.c
+++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
@@ -662,8 +662,8 @@ static void assemble_hw_pps(struct rkvdec_ctx *ctx,
 	WRITE_PPS(0xff, PROFILE_IDC);
 	WRITE_PPS(1, CONSTRAINT_SET3_FLAG);
 	WRITE_PPS(sps->chroma_format_idc, CHROMA_FORMAT_IDC);
-	WRITE_PPS(sps->bit_depth_luma_minus8 + 8, BIT_DEPTH_LUMA);
-	WRITE_PPS(sps->bit_depth_chroma_minus8 + 8, BIT_DEPTH_CHROMA);
+	WRITE_PPS(sps->bit_depth_luma_minus8, BIT_DEPTH_LUMA);
+	WRITE_PPS(sps->bit_depth_chroma_minus8, BIT_DEPTH_CHROMA);
 	WRITE_PPS(0, QPPRIME_Y_ZERO_TRANSFORM_BYPASS_FLAG);
 	WRITE_PPS(sps->log2_max_frame_num_minus4, LOG2_MAX_FRAME_NUM_MINUS4);
 	WRITE_PPS(sps->max_num_ref_frames, MAX_NUM_REF_FRAMES);
-- 
2.34.1


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 15/24] media: rkvdec: Move H264 SPS validation in rkvdec-h264
  2022-04-26 12:57 [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders Nicolas Dufresne
@ 2022-04-26 12:57   ` Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 02/24] media: v4l2-mem2mem: Trace on implicit un-hold Nicolas Dufresne
                     ` (22 subsequent siblings)
  23 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Mauro Carvalho Chehab, Greg Kroah-Hartman
  Cc: nicolas, linux-media, linux-rockchip, linux-staging, linux-kernel

No functional change, this moves H264 specific validation into the H264
specific code. This is in preparation of improving this validation and
reusing it when VIDIOC_STREAMON is called.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
---
 drivers/staging/media/rkvdec/rkvdec-h264.c | 23 ++++++++++++++++++++++
 drivers/staging/media/rkvdec/rkvdec.c      | 23 ++++++----------------
 drivers/staging/media/rkvdec/rkvdec.h      |  1 +
 3 files changed, 30 insertions(+), 17 deletions(-)

diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
index 8d44a884a52e..0dcbcb1bac80 100644
--- a/drivers/staging/media/rkvdec/rkvdec-h264.c
+++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
@@ -1137,9 +1137,32 @@ static int rkvdec_h264_run(struct rkvdec_ctx *ctx)
 	return 0;
 }
 
+static int rkvdec_h264_try_ctrl(struct rkvdec_ctx *ctx, struct v4l2_ctrl *ctrl)
+{
+	if (ctrl->id == V4L2_CID_STATELESS_H264_SPS) {
+		const struct v4l2_ctrl_h264_sps *sps = ctrl->p_new.p_h264_sps;
+		/*
+		 * TODO: The hardware supports 10-bit and 4:2:2 profiles,
+		 * but it's currently broken in the driver.
+		 * Reject them for now, until it's fixed.
+		 */
+		if (sps->chroma_format_idc > 1)
+			/* Only 4:0:0 and 4:2:0 are supported */
+			return -EINVAL;
+		if (sps->bit_depth_luma_minus8 != sps->bit_depth_chroma_minus8)
+			/* Luma and chroma bit depth mismatch */
+			return -EINVAL;
+		if (sps->bit_depth_luma_minus8 != 0)
+			/* Only 8-bit is supported */
+			return -EINVAL;
+	}
+	return 0;
+}
+
 const struct rkvdec_coded_fmt_ops rkvdec_h264_fmt_ops = {
 	.adjust_fmt = rkvdec_h264_adjust_fmt,
 	.start = rkvdec_h264_start,
 	.stop = rkvdec_h264_stop,
 	.run = rkvdec_h264_run,
+	.try_ctrl = rkvdec_h264_try_ctrl,
 };
diff --git a/drivers/staging/media/rkvdec/rkvdec.c b/drivers/staging/media/rkvdec/rkvdec.c
index 2df8cf4883e2..e3d44d5b35f3 100644
--- a/drivers/staging/media/rkvdec/rkvdec.c
+++ b/drivers/staging/media/rkvdec/rkvdec.c
@@ -29,23 +29,12 @@
 
 static int rkvdec_try_ctrl(struct v4l2_ctrl *ctrl)
 {
-	if (ctrl->id == V4L2_CID_STATELESS_H264_SPS) {
-		const struct v4l2_ctrl_h264_sps *sps = ctrl->p_new.p_h264_sps;
-		/*
-		 * TODO: The hardware supports 10-bit and 4:2:2 profiles,
-		 * but it's currently broken in the driver.
-		 * Reject them for now, until it's fixed.
-		 */
-		if (sps->chroma_format_idc > 1)
-			/* Only 4:0:0 and 4:2:0 are supported */
-			return -EINVAL;
-		if (sps->bit_depth_luma_minus8 != sps->bit_depth_chroma_minus8)
-			/* Luma and chroma bit depth mismatch */
-			return -EINVAL;
-		if (sps->bit_depth_luma_minus8 != 0)
-			/* Only 8-bit is supported */
-			return -EINVAL;
-	}
+	struct rkvdec_ctx *ctx = container_of(ctrl->handler, struct rkvdec_ctx, ctrl_hdl);
+	const struct rkvdec_coded_fmt_desc *desc = ctx->coded_fmt_desc;
+
+	if (desc->ops->try_ctrl)
+		return desc->ops->try_ctrl(ctx, ctrl);
+
 	return 0;
 }
 
diff --git a/drivers/staging/media/rkvdec/rkvdec.h b/drivers/staging/media/rkvdec/rkvdec.h
index 2f4ea1786b93..9df0fba799a4 100644
--- a/drivers/staging/media/rkvdec/rkvdec.h
+++ b/drivers/staging/media/rkvdec/rkvdec.h
@@ -72,6 +72,7 @@ struct rkvdec_coded_fmt_ops {
 	void (*done)(struct rkvdec_ctx *ctx, struct vb2_v4l2_buffer *src_buf,
 		     struct vb2_v4l2_buffer *dst_buf,
 		     enum vb2_buffer_state result);
+	int (*try_ctrl)(struct rkvdec_ctx *ctx, struct v4l2_ctrl *ctrl);
 };
 
 struct rkvdec_coded_fmt_desc {
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 15/24] media: rkvdec: Move H264 SPS validation in rkvdec-h264
@ 2022-04-26 12:57   ` Nicolas Dufresne
  0 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Mauro Carvalho Chehab, Greg Kroah-Hartman
  Cc: nicolas, linux-media, linux-rockchip, linux-staging, linux-kernel

No functional change, this moves H264 specific validation into the H264
specific code. This is in preparation of improving this validation and
reusing it when VIDIOC_STREAMON is called.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
---
 drivers/staging/media/rkvdec/rkvdec-h264.c | 23 ++++++++++++++++++++++
 drivers/staging/media/rkvdec/rkvdec.c      | 23 ++++++----------------
 drivers/staging/media/rkvdec/rkvdec.h      |  1 +
 3 files changed, 30 insertions(+), 17 deletions(-)

diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
index 8d44a884a52e..0dcbcb1bac80 100644
--- a/drivers/staging/media/rkvdec/rkvdec-h264.c
+++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
@@ -1137,9 +1137,32 @@ static int rkvdec_h264_run(struct rkvdec_ctx *ctx)
 	return 0;
 }
 
+static int rkvdec_h264_try_ctrl(struct rkvdec_ctx *ctx, struct v4l2_ctrl *ctrl)
+{
+	if (ctrl->id == V4L2_CID_STATELESS_H264_SPS) {
+		const struct v4l2_ctrl_h264_sps *sps = ctrl->p_new.p_h264_sps;
+		/*
+		 * TODO: The hardware supports 10-bit and 4:2:2 profiles,
+		 * but it's currently broken in the driver.
+		 * Reject them for now, until it's fixed.
+		 */
+		if (sps->chroma_format_idc > 1)
+			/* Only 4:0:0 and 4:2:0 are supported */
+			return -EINVAL;
+		if (sps->bit_depth_luma_minus8 != sps->bit_depth_chroma_minus8)
+			/* Luma and chroma bit depth mismatch */
+			return -EINVAL;
+		if (sps->bit_depth_luma_minus8 != 0)
+			/* Only 8-bit is supported */
+			return -EINVAL;
+	}
+	return 0;
+}
+
 const struct rkvdec_coded_fmt_ops rkvdec_h264_fmt_ops = {
 	.adjust_fmt = rkvdec_h264_adjust_fmt,
 	.start = rkvdec_h264_start,
 	.stop = rkvdec_h264_stop,
 	.run = rkvdec_h264_run,
+	.try_ctrl = rkvdec_h264_try_ctrl,
 };
diff --git a/drivers/staging/media/rkvdec/rkvdec.c b/drivers/staging/media/rkvdec/rkvdec.c
index 2df8cf4883e2..e3d44d5b35f3 100644
--- a/drivers/staging/media/rkvdec/rkvdec.c
+++ b/drivers/staging/media/rkvdec/rkvdec.c
@@ -29,23 +29,12 @@
 
 static int rkvdec_try_ctrl(struct v4l2_ctrl *ctrl)
 {
-	if (ctrl->id == V4L2_CID_STATELESS_H264_SPS) {
-		const struct v4l2_ctrl_h264_sps *sps = ctrl->p_new.p_h264_sps;
-		/*
-		 * TODO: The hardware supports 10-bit and 4:2:2 profiles,
-		 * but it's currently broken in the driver.
-		 * Reject them for now, until it's fixed.
-		 */
-		if (sps->chroma_format_idc > 1)
-			/* Only 4:0:0 and 4:2:0 are supported */
-			return -EINVAL;
-		if (sps->bit_depth_luma_minus8 != sps->bit_depth_chroma_minus8)
-			/* Luma and chroma bit depth mismatch */
-			return -EINVAL;
-		if (sps->bit_depth_luma_minus8 != 0)
-			/* Only 8-bit is supported */
-			return -EINVAL;
-	}
+	struct rkvdec_ctx *ctx = container_of(ctrl->handler, struct rkvdec_ctx, ctrl_hdl);
+	const struct rkvdec_coded_fmt_desc *desc = ctx->coded_fmt_desc;
+
+	if (desc->ops->try_ctrl)
+		return desc->ops->try_ctrl(ctx, ctrl);
+
 	return 0;
 }
 
diff --git a/drivers/staging/media/rkvdec/rkvdec.h b/drivers/staging/media/rkvdec/rkvdec.h
index 2f4ea1786b93..9df0fba799a4 100644
--- a/drivers/staging/media/rkvdec/rkvdec.h
+++ b/drivers/staging/media/rkvdec/rkvdec.h
@@ -72,6 +72,7 @@ struct rkvdec_coded_fmt_ops {
 	void (*done)(struct rkvdec_ctx *ctx, struct vb2_v4l2_buffer *src_buf,
 		     struct vb2_v4l2_buffer *dst_buf,
 		     enum vb2_buffer_state result);
+	int (*try_ctrl)(struct rkvdec_ctx *ctx, struct v4l2_ctrl *ctrl);
 };
 
 struct rkvdec_coded_fmt_desc {
-- 
2.34.1


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 16/24] media: rkvdec: h264: Validate and use pic width and height in mbs
  2022-04-26 12:57 [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders Nicolas Dufresne
@ 2022-04-26 12:57   ` Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 02/24] media: v4l2-mem2mem: Trace on implicit un-hold Nicolas Dufresne
                     ` (22 subsequent siblings)
  23 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Mauro Carvalho Chehab, Greg Kroah-Hartman
  Cc: nicolas, Jonas Karlman, linux-media, linux-rockchip,
	linux-staging, linux-kernel

From: Jonas Karlman <jonas@kwiboo.se>

The width and height in macroblocks is currently configured based on OUTPUT
buffer resolution, this works for frame pictures but can cause issues for
field pictures.

When frame_mbs_only_flag is 0 the height in mbs should be height of
the field instead of height of frame.

Validate pic_width_in_mbs_minus1 and pic_height_in_map_units_minus1
against OUTPUT buffer resolution and use these values to configure HW.
The validation is happening in both try_ctrt() and start() since it is
otherwise possible to trick the driver during initialization by changing
the OUTPUT format after having set a valid control.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
---
 drivers/staging/media/rkvdec/rkvdec-h264.c | 81 +++++++++++++++++-----
 1 file changed, 62 insertions(+), 19 deletions(-)

diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
index 0dcbcb1bac80..d5ac0285f36f 100644
--- a/drivers/staging/media/rkvdec/rkvdec-h264.c
+++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
@@ -672,8 +672,17 @@ static void assemble_hw_pps(struct rkvdec_ctx *ctx,
 		  LOG2_MAX_PIC_ORDER_CNT_LSB_MINUS4);
 	WRITE_PPS(!!(sps->flags & V4L2_H264_SPS_FLAG_DELTA_PIC_ORDER_ALWAYS_ZERO),
 		  DELTA_PIC_ORDER_ALWAYS_ZERO_FLAG);
-	WRITE_PPS(DIV_ROUND_UP(ctx->coded_fmt.fmt.pix_mp.width, 16), PIC_WIDTH_IN_MBS);
-	WRITE_PPS(DIV_ROUND_UP(ctx->coded_fmt.fmt.pix_mp.height, 16), PIC_HEIGHT_IN_MBS);
+
+	/*
+	 * Use the SPS values since they are already in macroblocks
+	 * dimensions, height can be field height (halved) if
+	 * V4L2_H264_SPS_FLAG_FRAME_MBS_ONLY is not set and also it allows
+	 * decoding smaller images into larger allocation which can be used
+	 * to implementing SVC spatial layer support.
+	 */
+	WRITE_PPS(sps->pic_width_in_mbs_minus1 + 1, PIC_WIDTH_IN_MBS);
+	WRITE_PPS(sps->pic_height_in_map_units_minus1 + 1, PIC_HEIGHT_IN_MBS);
+
 	WRITE_PPS(!!(sps->flags & V4L2_H264_SPS_FLAG_FRAME_MBS_ONLY),
 		  FRAME_MBS_ONLY_FLAG);
 	WRITE_PPS(!!(sps->flags & V4L2_H264_SPS_FLAG_MB_ADAPTIVE_FRAME_FIELD),
@@ -1035,13 +1044,61 @@ static int rkvdec_h264_adjust_fmt(struct rkvdec_ctx *ctx,
 	return 0;
 }
 
+static int rkvdec_h264_validate_sps(struct rkvdec_ctx *ctx,
+				    const struct v4l2_ctrl_h264_sps *sps)
+{
+	unsigned int width, height;
+
+	/*
+	 * TODO: The hardware supports 10-bit and 4:2:2 profiles,
+	 * but it's currently broken in the driver.
+	 * Reject them for now, until it's fixed.
+	 */
+	if (sps->chroma_format_idc > 1)
+		/* Only 4:0:0 and 4:2:0 are supported */
+		return -EINVAL;
+	if (sps->bit_depth_luma_minus8 != sps->bit_depth_chroma_minus8)
+		/* Luma and chroma bit depth mismatch */
+		return -EINVAL;
+	if (sps->bit_depth_luma_minus8 != 0)
+		/* Only 8-bit is supported */
+		return -EINVAL;
+
+	width = (sps->pic_width_in_mbs_minus1 + 1) * 16;
+	height = (sps->pic_height_in_map_units_minus1 + 1) * 16;
+
+	/*
+	 * when frame_mbs_only_flag is not set, this is field height,
+	 * which is half the final height (see (7-18) in the
+	 * specification)
+	 */
+	if (!(sps->flags & V4L2_H264_SPS_FLAG_FRAME_MBS_ONLY))
+		height *= 2;
+
+	if (width > ctx->coded_fmt.fmt.pix_mp.width ||
+	    height > ctx->coded_fmt.fmt.pix_mp.height)
+		return -EINVAL;
+
+	return 0;
+}
+
 static int rkvdec_h264_start(struct rkvdec_ctx *ctx)
 {
 	struct rkvdec_dev *rkvdec = ctx->dev;
 	struct rkvdec_h264_priv_tbl *priv_tbl;
 	struct rkvdec_h264_ctx *h264_ctx;
+	struct v4l2_ctrl *ctrl;
 	int ret;
 
+	ctrl = v4l2_ctrl_find(&ctx->ctrl_hdl,
+			      V4L2_CID_STATELESS_H264_SPS);
+	if (!ctrl)
+		return -EINVAL;
+
+	ret = rkvdec_h264_validate_sps(ctx, ctrl->p_new.p_h264_sps);
+	if (ret)
+		return ret;
+
 	h264_ctx = kzalloc(sizeof(*h264_ctx), GFP_KERNEL);
 	if (!h264_ctx)
 		return -ENOMEM;
@@ -1139,23 +1196,9 @@ static int rkvdec_h264_run(struct rkvdec_ctx *ctx)
 
 static int rkvdec_h264_try_ctrl(struct rkvdec_ctx *ctx, struct v4l2_ctrl *ctrl)
 {
-	if (ctrl->id == V4L2_CID_STATELESS_H264_SPS) {
-		const struct v4l2_ctrl_h264_sps *sps = ctrl->p_new.p_h264_sps;
-		/*
-		 * TODO: The hardware supports 10-bit and 4:2:2 profiles,
-		 * but it's currently broken in the driver.
-		 * Reject them for now, until it's fixed.
-		 */
-		if (sps->chroma_format_idc > 1)
-			/* Only 4:0:0 and 4:2:0 are supported */
-			return -EINVAL;
-		if (sps->bit_depth_luma_minus8 != sps->bit_depth_chroma_minus8)
-			/* Luma and chroma bit depth mismatch */
-			return -EINVAL;
-		if (sps->bit_depth_luma_minus8 != 0)
-			/* Only 8-bit is supported */
-			return -EINVAL;
-	}
+	if (ctrl->id == V4L2_CID_STATELESS_H264_SPS)
+		return rkvdec_h264_validate_sps(ctx, ctrl->p_new.p_h264_sps);
+
 	return 0;
 }
 
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 16/24] media: rkvdec: h264: Validate and use pic width and height in mbs
@ 2022-04-26 12:57   ` Nicolas Dufresne
  0 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Mauro Carvalho Chehab, Greg Kroah-Hartman
  Cc: nicolas, Jonas Karlman, linux-media, linux-rockchip,
	linux-staging, linux-kernel

From: Jonas Karlman <jonas@kwiboo.se>

The width and height in macroblocks is currently configured based on OUTPUT
buffer resolution, this works for frame pictures but can cause issues for
field pictures.

When frame_mbs_only_flag is 0 the height in mbs should be height of
the field instead of height of frame.

Validate pic_width_in_mbs_minus1 and pic_height_in_map_units_minus1
against OUTPUT buffer resolution and use these values to configure HW.
The validation is happening in both try_ctrt() and start() since it is
otherwise possible to trick the driver during initialization by changing
the OUTPUT format after having set a valid control.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
---
 drivers/staging/media/rkvdec/rkvdec-h264.c | 81 +++++++++++++++++-----
 1 file changed, 62 insertions(+), 19 deletions(-)

diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
index 0dcbcb1bac80..d5ac0285f36f 100644
--- a/drivers/staging/media/rkvdec/rkvdec-h264.c
+++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
@@ -672,8 +672,17 @@ static void assemble_hw_pps(struct rkvdec_ctx *ctx,
 		  LOG2_MAX_PIC_ORDER_CNT_LSB_MINUS4);
 	WRITE_PPS(!!(sps->flags & V4L2_H264_SPS_FLAG_DELTA_PIC_ORDER_ALWAYS_ZERO),
 		  DELTA_PIC_ORDER_ALWAYS_ZERO_FLAG);
-	WRITE_PPS(DIV_ROUND_UP(ctx->coded_fmt.fmt.pix_mp.width, 16), PIC_WIDTH_IN_MBS);
-	WRITE_PPS(DIV_ROUND_UP(ctx->coded_fmt.fmt.pix_mp.height, 16), PIC_HEIGHT_IN_MBS);
+
+	/*
+	 * Use the SPS values since they are already in macroblocks
+	 * dimensions, height can be field height (halved) if
+	 * V4L2_H264_SPS_FLAG_FRAME_MBS_ONLY is not set and also it allows
+	 * decoding smaller images into larger allocation which can be used
+	 * to implementing SVC spatial layer support.
+	 */
+	WRITE_PPS(sps->pic_width_in_mbs_minus1 + 1, PIC_WIDTH_IN_MBS);
+	WRITE_PPS(sps->pic_height_in_map_units_minus1 + 1, PIC_HEIGHT_IN_MBS);
+
 	WRITE_PPS(!!(sps->flags & V4L2_H264_SPS_FLAG_FRAME_MBS_ONLY),
 		  FRAME_MBS_ONLY_FLAG);
 	WRITE_PPS(!!(sps->flags & V4L2_H264_SPS_FLAG_MB_ADAPTIVE_FRAME_FIELD),
@@ -1035,13 +1044,61 @@ static int rkvdec_h264_adjust_fmt(struct rkvdec_ctx *ctx,
 	return 0;
 }
 
+static int rkvdec_h264_validate_sps(struct rkvdec_ctx *ctx,
+				    const struct v4l2_ctrl_h264_sps *sps)
+{
+	unsigned int width, height;
+
+	/*
+	 * TODO: The hardware supports 10-bit and 4:2:2 profiles,
+	 * but it's currently broken in the driver.
+	 * Reject them for now, until it's fixed.
+	 */
+	if (sps->chroma_format_idc > 1)
+		/* Only 4:0:0 and 4:2:0 are supported */
+		return -EINVAL;
+	if (sps->bit_depth_luma_minus8 != sps->bit_depth_chroma_minus8)
+		/* Luma and chroma bit depth mismatch */
+		return -EINVAL;
+	if (sps->bit_depth_luma_minus8 != 0)
+		/* Only 8-bit is supported */
+		return -EINVAL;
+
+	width = (sps->pic_width_in_mbs_minus1 + 1) * 16;
+	height = (sps->pic_height_in_map_units_minus1 + 1) * 16;
+
+	/*
+	 * when frame_mbs_only_flag is not set, this is field height,
+	 * which is half the final height (see (7-18) in the
+	 * specification)
+	 */
+	if (!(sps->flags & V4L2_H264_SPS_FLAG_FRAME_MBS_ONLY))
+		height *= 2;
+
+	if (width > ctx->coded_fmt.fmt.pix_mp.width ||
+	    height > ctx->coded_fmt.fmt.pix_mp.height)
+		return -EINVAL;
+
+	return 0;
+}
+
 static int rkvdec_h264_start(struct rkvdec_ctx *ctx)
 {
 	struct rkvdec_dev *rkvdec = ctx->dev;
 	struct rkvdec_h264_priv_tbl *priv_tbl;
 	struct rkvdec_h264_ctx *h264_ctx;
+	struct v4l2_ctrl *ctrl;
 	int ret;
 
+	ctrl = v4l2_ctrl_find(&ctx->ctrl_hdl,
+			      V4L2_CID_STATELESS_H264_SPS);
+	if (!ctrl)
+		return -EINVAL;
+
+	ret = rkvdec_h264_validate_sps(ctx, ctrl->p_new.p_h264_sps);
+	if (ret)
+		return ret;
+
 	h264_ctx = kzalloc(sizeof(*h264_ctx), GFP_KERNEL);
 	if (!h264_ctx)
 		return -ENOMEM;
@@ -1139,23 +1196,9 @@ static int rkvdec_h264_run(struct rkvdec_ctx *ctx)
 
 static int rkvdec_h264_try_ctrl(struct rkvdec_ctx *ctx, struct v4l2_ctrl *ctrl)
 {
-	if (ctrl->id == V4L2_CID_STATELESS_H264_SPS) {
-		const struct v4l2_ctrl_h264_sps *sps = ctrl->p_new.p_h264_sps;
-		/*
-		 * TODO: The hardware supports 10-bit and 4:2:2 profiles,
-		 * but it's currently broken in the driver.
-		 * Reject them for now, until it's fixed.
-		 */
-		if (sps->chroma_format_idc > 1)
-			/* Only 4:0:0 and 4:2:0 are supported */
-			return -EINVAL;
-		if (sps->bit_depth_luma_minus8 != sps->bit_depth_chroma_minus8)
-			/* Luma and chroma bit depth mismatch */
-			return -EINVAL;
-		if (sps->bit_depth_luma_minus8 != 0)
-			/* Only 8-bit is supported */
-			return -EINVAL;
-	}
+	if (ctrl->id == V4L2_CID_STATELESS_H264_SPS)
+		return rkvdec_h264_validate_sps(ctx, ctrl->p_new.p_h264_sps);
+
 	return 0;
 }
 
-- 
2.34.1


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 17/24] media: rkvdec: h264: Fix reference frame_num wrap for second field
  2022-04-26 12:57 [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders Nicolas Dufresne
@ 2022-04-26 12:57   ` Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 02/24] media: v4l2-mem2mem: Trace on implicit un-hold Nicolas Dufresne
                     ` (22 subsequent siblings)
  23 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Mauro Carvalho Chehab, Greg Kroah-Hartman
  Cc: nicolas, Jonas Karlman, linux-media, Ezequiel Garcia,
	Sebastian Fricke, linux-rockchip, linux-staging, linux-kernel

From: Jonas Karlman <jonas@kwiboo.se>

When decoding the second field in a complementary field pair the second
field is sharing the same frame_num with the first field.

Currently the frame_num for the first field is wrapped when it matches the
field being decoded, this caused issues decoding the second field in a
complementary field pair.

Fix this by using inclusive comparison: 'less than or equal'.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
---
 drivers/staging/media/rkvdec/rkvdec-h264.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
index d5ac0285f36f..7011b66c1aab 100644
--- a/drivers/staging/media/rkvdec/rkvdec-h264.c
+++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
@@ -782,7 +782,7 @@ static void assemble_hw_rps(struct rkvdec_ctx *ctx,
 			continue;
 
 		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM ||
-		    dpb[i].frame_num < dec_params->frame_num) {
+		    dpb[i].frame_num <= dec_params->frame_num) {
 			p[i] = dpb[i].frame_num;
 			continue;
 		}
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 17/24] media: rkvdec: h264: Fix reference frame_num wrap for second field
@ 2022-04-26 12:57   ` Nicolas Dufresne
  0 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Mauro Carvalho Chehab, Greg Kroah-Hartman
  Cc: nicolas, Jonas Karlman, linux-media, Ezequiel Garcia,
	Sebastian Fricke, linux-rockchip, linux-staging, linux-kernel

From: Jonas Karlman <jonas@kwiboo.se>

When decoding the second field in a complementary field pair the second
field is sharing the same frame_num with the first field.

Currently the frame_num for the first field is wrapped when it matches the
field being decoded, this caused issues decoding the second field in a
complementary field pair.

Fix this by using inclusive comparison: 'less than or equal'.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
---
 drivers/staging/media/rkvdec/rkvdec-h264.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
index d5ac0285f36f..7011b66c1aab 100644
--- a/drivers/staging/media/rkvdec/rkvdec-h264.c
+++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
@@ -782,7 +782,7 @@ static void assemble_hw_rps(struct rkvdec_ctx *ctx,
 			continue;
 
 		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM ||
-		    dpb[i].frame_num < dec_params->frame_num) {
+		    dpb[i].frame_num <= dec_params->frame_num) {
 			p[i] = dpb[i].frame_num;
 			continue;
 		}
-- 
2.34.1


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 18/24] media: rkvdec: Ensure decoded resolution fit coded resolution
  2022-04-26 12:57 [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders Nicolas Dufresne
@ 2022-04-26 12:57   ` Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 02/24] media: v4l2-mem2mem: Trace on implicit un-hold Nicolas Dufresne
                     ` (22 subsequent siblings)
  23 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Mauro Carvalho Chehab, Greg Kroah-Hartman
  Cc: nicolas, Jonas Karlman, linux-media, Sebastian Fricke,
	linux-rockchip, linux-staging, linux-kernel

From: Jonas Karlman <jonas@kwiboo.se>

Ensure decoded CAPTURE buffer resolution is larger or equal to the coded
OUTPUT buffer resolution.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
---
 drivers/staging/media/rkvdec/rkvdec.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/staging/media/rkvdec/rkvdec.c b/drivers/staging/media/rkvdec/rkvdec.c
index e3d44d5b35f3..2bc4b1a40989 100644
--- a/drivers/staging/media/rkvdec/rkvdec.c
+++ b/drivers/staging/media/rkvdec/rkvdec.c
@@ -257,6 +257,8 @@ static int rkvdec_try_capture_fmt(struct file *file, void *priv,
 		pix_mp->pixelformat = coded_desc->decoded_fmts[0];
 
 	/* Always apply the frmsize constraint of the coded end. */
+	pix_mp->width = max(pix_mp->width, ctx->coded_fmt.fmt.pix_mp.width);
+	pix_mp->height = max(pix_mp->height, ctx->coded_fmt.fmt.pix_mp.height);
 	v4l2_apply_frmsize_constraints(&pix_mp->width,
 				       &pix_mp->height,
 				       &coded_desc->frmsize);
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 18/24] media: rkvdec: Ensure decoded resolution fit coded resolution
@ 2022-04-26 12:57   ` Nicolas Dufresne
  0 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Mauro Carvalho Chehab, Greg Kroah-Hartman
  Cc: nicolas, Jonas Karlman, linux-media, Sebastian Fricke,
	linux-rockchip, linux-staging, linux-kernel

From: Jonas Karlman <jonas@kwiboo.se>

Ensure decoded CAPTURE buffer resolution is larger or equal to the coded
OUTPUT buffer resolution.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
---
 drivers/staging/media/rkvdec/rkvdec.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/staging/media/rkvdec/rkvdec.c b/drivers/staging/media/rkvdec/rkvdec.c
index e3d44d5b35f3..2bc4b1a40989 100644
--- a/drivers/staging/media/rkvdec/rkvdec.c
+++ b/drivers/staging/media/rkvdec/rkvdec.c
@@ -257,6 +257,8 @@ static int rkvdec_try_capture_fmt(struct file *file, void *priv,
 		pix_mp->pixelformat = coded_desc->decoded_fmts[0];
 
 	/* Always apply the frmsize constraint of the coded end. */
+	pix_mp->width = max(pix_mp->width, ctx->coded_fmt.fmt.pix_mp.width);
+	pix_mp->height = max(pix_mp->height, ctx->coded_fmt.fmt.pix_mp.height);
 	v4l2_apply_frmsize_constraints(&pix_mp->width,
 				       &pix_mp->height,
 				       &coded_desc->frmsize);
-- 
2.34.1


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 19/24] media: rkvdec-h264: Add field decoding support
  2022-04-26 12:57 [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders Nicolas Dufresne
@ 2022-04-26 12:57   ` Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 02/24] media: v4l2-mem2mem: Trace on implicit un-hold Nicolas Dufresne
                     ` (22 subsequent siblings)
  23 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Mauro Carvalho Chehab, Greg Kroah-Hartman
  Cc: nicolas, linux-media, Sebastian Fricke, linux-rockchip,
	linux-staging, linux-kernel

This makes use of the new feature in the reference builder to program
up to 32 references when doing field decoding. It also signals the
parity (top or bottom) of the field to the hardware.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
---
 drivers/staging/media/rkvdec/rkvdec-h264.c | 48 ++++++++++------------
 1 file changed, 21 insertions(+), 27 deletions(-)

diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
index 7011b66c1aab..fbe23d598720 100644
--- a/drivers/staging/media/rkvdec/rkvdec-h264.c
+++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
@@ -97,13 +97,10 @@ struct rkvdec_h264_priv_tbl {
 	u8 err_info[RKV_ERROR_INFO_SIZE];
 };
 
-#define RKVDEC_H264_DPB_SIZE 16
-
 struct rkvdec_h264_reflists {
 	struct v4l2_h264_reference p[V4L2_H264_REF_LIST_LEN];
 	struct v4l2_h264_reference b0[V4L2_H264_REF_LIST_LEN];
 	struct v4l2_h264_reference b1[V4L2_H264_REF_LIST_LEN];
-	u8 num_valid;
 };
 
 struct rkvdec_h264_run {
@@ -747,23 +744,26 @@ static void lookup_ref_buf_idx(struct rkvdec_ctx *ctx,
 		struct vb2_queue *cap_q = &m2m_ctx->cap_q_ctx.q;
 		int buf_idx = -1;
 
-		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)
+		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE) {
 			buf_idx = vb2_find_timestamp(cap_q,
 						     dpb[i].reference_ts, 0);
+			if (buf_idx < 0)
+				pr_debug("No buffer for reference_ts %llu",
+					 dpb[i].reference_ts);
+		}
 
 		run->ref_buf_idx[i] = buf_idx;
 	}
 }
 
 static void assemble_hw_rps(struct rkvdec_ctx *ctx,
+			    struct v4l2_h264_reflist_builder *builder,
 			    struct rkvdec_h264_run *run)
 {
 	const struct v4l2_ctrl_h264_decode_params *dec_params = run->decode_params;
 	const struct v4l2_h264_dpb_entry *dpb = dec_params->dpb;
 	struct rkvdec_h264_ctx *h264_ctx = ctx->priv;
-	const struct v4l2_ctrl_h264_sps *sps = run->sps;
 	struct rkvdec_h264_priv_tbl *priv_tbl = h264_ctx->priv_tbl.cpu;
-	u32 max_frame_num = 1 << (sps->log2_max_frame_num_minus4 + 4);
 
 	u32 *hw_rps = priv_tbl->rps;
 	u32 i, j;
@@ -781,37 +781,36 @@ static void assemble_hw_rps(struct rkvdec_ctx *ctx,
 		if (!(dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE))
 			continue;
 
-		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM ||
-		    dpb[i].frame_num <= dec_params->frame_num) {
-			p[i] = dpb[i].frame_num;
-			continue;
-		}
-
-		p[i] = dpb[i].frame_num - max_frame_num;
+		p[i] = builder->refs[i].frame_num;
 	}
 
 	for (j = 0; j < RKVDEC_NUM_REFLIST; j++) {
-		for (i = 0; i < h264_ctx->reflists.num_valid; i++) {
-			bool dpb_valid = run->ref_buf_idx[i] >= 0;
-			u8 idx = 0;
+		for (i = 0; i < builder->num_valid; i++) {
+			struct v4l2_h264_reference *ref;
+			bool dpb_valid;
+			bool bottom;
 
 			switch (j) {
 			case 0:
-				idx = h264_ctx->reflists.p[i].index;
+				ref = &h264_ctx->reflists.p[i];
 				break;
 			case 1:
-				idx = h264_ctx->reflists.b0[i].index;
+				ref = &h264_ctx->reflists.b0[i];
 				break;
 			case 2:
-				idx = h264_ctx->reflists.b1[i].index;
+				ref = &h264_ctx->reflists.b1[i];
 				break;
 			}
 
-			if (idx >= ARRAY_SIZE(dec_params->dpb))
+			if (WARN_ON(ref->index >= ARRAY_SIZE(dec_params->dpb)))
 				continue;
 
+			dpb_valid = run->ref_buf_idx[ref->index] >= 0;
+			bottom = ref->fields == V4L2_H264_BOTTOM_FIELD_REF;
+
 			set_ps_field(hw_rps, DPB_INFO(i, j),
-				     idx | dpb_valid << 4);
+				     ref->index | dpb_valid << 4);
+			set_ps_field(hw_rps, BOTTOM_FLAG(i, j), bottom);
 		}
 	}
 }
@@ -999,10 +998,6 @@ static void config_registers(struct rkvdec_ctx *ctx,
 				       rkvdec->regs + RKVDEC_REG_H264_BASE_REFER15);
 	}
 
-	/*
-	 * Since support frame mode only
-	 * top_field_order_cnt is the same as bottom_field_order_cnt
-	 */
 	reg = RKVDEC_CUR_POC(dec_params->top_field_order_cnt);
 	writel_relaxed(reg, rkvdec->regs + RKVDEC_REG_CUR_POC0);
 
@@ -1166,7 +1161,6 @@ static int rkvdec_h264_run(struct rkvdec_ctx *ctx)
 	/* Build the P/B{0,1} ref lists. */
 	v4l2_h264_init_reflist_builder(&reflist_builder, run.decode_params,
 				       run.sps, run.decode_params->dpb);
-	h264_ctx->reflists.num_valid = reflist_builder.num_valid;
 	v4l2_h264_build_p_ref_list(&reflist_builder, h264_ctx->reflists.p);
 	v4l2_h264_build_b_ref_lists(&reflist_builder, h264_ctx->reflists.b0,
 				    h264_ctx->reflists.b1);
@@ -1174,7 +1168,7 @@ static int rkvdec_h264_run(struct rkvdec_ctx *ctx)
 	assemble_hw_scaling_list(ctx, &run);
 	assemble_hw_pps(ctx, &run);
 	lookup_ref_buf_idx(ctx, &run);
-	assemble_hw_rps(ctx, &run);
+	assemble_hw_rps(ctx, &reflist_builder, &run);
 	config_registers(ctx, &run);
 
 	rkvdec_run_postamble(ctx, &run.base);
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 19/24] media: rkvdec-h264: Add field decoding support
@ 2022-04-26 12:57   ` Nicolas Dufresne
  0 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Mauro Carvalho Chehab, Greg Kroah-Hartman
  Cc: nicolas, linux-media, Sebastian Fricke, linux-rockchip,
	linux-staging, linux-kernel

This makes use of the new feature in the reference builder to program
up to 32 references when doing field decoding. It also signals the
parity (top or bottom) of the field to the hardware.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
---
 drivers/staging/media/rkvdec/rkvdec-h264.c | 48 ++++++++++------------
 1 file changed, 21 insertions(+), 27 deletions(-)

diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
index 7011b66c1aab..fbe23d598720 100644
--- a/drivers/staging/media/rkvdec/rkvdec-h264.c
+++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
@@ -97,13 +97,10 @@ struct rkvdec_h264_priv_tbl {
 	u8 err_info[RKV_ERROR_INFO_SIZE];
 };
 
-#define RKVDEC_H264_DPB_SIZE 16
-
 struct rkvdec_h264_reflists {
 	struct v4l2_h264_reference p[V4L2_H264_REF_LIST_LEN];
 	struct v4l2_h264_reference b0[V4L2_H264_REF_LIST_LEN];
 	struct v4l2_h264_reference b1[V4L2_H264_REF_LIST_LEN];
-	u8 num_valid;
 };
 
 struct rkvdec_h264_run {
@@ -747,23 +744,26 @@ static void lookup_ref_buf_idx(struct rkvdec_ctx *ctx,
 		struct vb2_queue *cap_q = &m2m_ctx->cap_q_ctx.q;
 		int buf_idx = -1;
 
-		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)
+		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE) {
 			buf_idx = vb2_find_timestamp(cap_q,
 						     dpb[i].reference_ts, 0);
+			if (buf_idx < 0)
+				pr_debug("No buffer for reference_ts %llu",
+					 dpb[i].reference_ts);
+		}
 
 		run->ref_buf_idx[i] = buf_idx;
 	}
 }
 
 static void assemble_hw_rps(struct rkvdec_ctx *ctx,
+			    struct v4l2_h264_reflist_builder *builder,
 			    struct rkvdec_h264_run *run)
 {
 	const struct v4l2_ctrl_h264_decode_params *dec_params = run->decode_params;
 	const struct v4l2_h264_dpb_entry *dpb = dec_params->dpb;
 	struct rkvdec_h264_ctx *h264_ctx = ctx->priv;
-	const struct v4l2_ctrl_h264_sps *sps = run->sps;
 	struct rkvdec_h264_priv_tbl *priv_tbl = h264_ctx->priv_tbl.cpu;
-	u32 max_frame_num = 1 << (sps->log2_max_frame_num_minus4 + 4);
 
 	u32 *hw_rps = priv_tbl->rps;
 	u32 i, j;
@@ -781,37 +781,36 @@ static void assemble_hw_rps(struct rkvdec_ctx *ctx,
 		if (!(dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE))
 			continue;
 
-		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM ||
-		    dpb[i].frame_num <= dec_params->frame_num) {
-			p[i] = dpb[i].frame_num;
-			continue;
-		}
-
-		p[i] = dpb[i].frame_num - max_frame_num;
+		p[i] = builder->refs[i].frame_num;
 	}
 
 	for (j = 0; j < RKVDEC_NUM_REFLIST; j++) {
-		for (i = 0; i < h264_ctx->reflists.num_valid; i++) {
-			bool dpb_valid = run->ref_buf_idx[i] >= 0;
-			u8 idx = 0;
+		for (i = 0; i < builder->num_valid; i++) {
+			struct v4l2_h264_reference *ref;
+			bool dpb_valid;
+			bool bottom;
 
 			switch (j) {
 			case 0:
-				idx = h264_ctx->reflists.p[i].index;
+				ref = &h264_ctx->reflists.p[i];
 				break;
 			case 1:
-				idx = h264_ctx->reflists.b0[i].index;
+				ref = &h264_ctx->reflists.b0[i];
 				break;
 			case 2:
-				idx = h264_ctx->reflists.b1[i].index;
+				ref = &h264_ctx->reflists.b1[i];
 				break;
 			}
 
-			if (idx >= ARRAY_SIZE(dec_params->dpb))
+			if (WARN_ON(ref->index >= ARRAY_SIZE(dec_params->dpb)))
 				continue;
 
+			dpb_valid = run->ref_buf_idx[ref->index] >= 0;
+			bottom = ref->fields == V4L2_H264_BOTTOM_FIELD_REF;
+
 			set_ps_field(hw_rps, DPB_INFO(i, j),
-				     idx | dpb_valid << 4);
+				     ref->index | dpb_valid << 4);
+			set_ps_field(hw_rps, BOTTOM_FLAG(i, j), bottom);
 		}
 	}
 }
@@ -999,10 +998,6 @@ static void config_registers(struct rkvdec_ctx *ctx,
 				       rkvdec->regs + RKVDEC_REG_H264_BASE_REFER15);
 	}
 
-	/*
-	 * Since support frame mode only
-	 * top_field_order_cnt is the same as bottom_field_order_cnt
-	 */
 	reg = RKVDEC_CUR_POC(dec_params->top_field_order_cnt);
 	writel_relaxed(reg, rkvdec->regs + RKVDEC_REG_CUR_POC0);
 
@@ -1166,7 +1161,6 @@ static int rkvdec_h264_run(struct rkvdec_ctx *ctx)
 	/* Build the P/B{0,1} ref lists. */
 	v4l2_h264_init_reflist_builder(&reflist_builder, run.decode_params,
 				       run.sps, run.decode_params->dpb);
-	h264_ctx->reflists.num_valid = reflist_builder.num_valid;
 	v4l2_h264_build_p_ref_list(&reflist_builder, h264_ctx->reflists.p);
 	v4l2_h264_build_b_ref_lists(&reflist_builder, h264_ctx->reflists.b0,
 				    h264_ctx->reflists.b1);
@@ -1174,7 +1168,7 @@ static int rkvdec_h264_run(struct rkvdec_ctx *ctx)
 	assemble_hw_scaling_list(ctx, &run);
 	assemble_hw_pps(ctx, &run);
 	lookup_ref_buf_idx(ctx, &run);
-	assemble_hw_rps(ctx, &run);
+	assemble_hw_rps(ctx, &reflist_builder, &run);
 	config_registers(ctx, &run);
 
 	rkvdec_run_postamble(ctx, &run.base);
-- 
2.34.1


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 20/24] media: rkvdec: Enable capture buffer holding for H264
  2022-04-26 12:57 [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders Nicolas Dufresne
@ 2022-04-26 12:57   ` Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 02/24] media: v4l2-mem2mem: Trace on implicit un-hold Nicolas Dufresne
                     ` (22 subsequent siblings)
  23 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Mauro Carvalho Chehab, Greg Kroah-Hartman
  Cc: nicolas, linux-media, Sebastian Fricke, linux-rockchip,
	linux-staging, linux-kernel

In order to support interlaced video decoding, the driver must
allow holding the capture buffer so that the second field can
be decoded into it.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
---
 drivers/staging/media/rkvdec/rkvdec.c | 4 ++++
 drivers/staging/media/rkvdec/rkvdec.h | 1 +
 2 files changed, 5 insertions(+)

diff --git a/drivers/staging/media/rkvdec/rkvdec.c b/drivers/staging/media/rkvdec/rkvdec.c
index 2bc4b1a40989..7bab7586918c 100644
--- a/drivers/staging/media/rkvdec/rkvdec.c
+++ b/drivers/staging/media/rkvdec/rkvdec.c
@@ -127,6 +127,7 @@ static const struct rkvdec_coded_fmt_desc rkvdec_coded_fmts[] = {
 		.ops = &rkvdec_h264_fmt_ops,
 		.num_decoded_fmts = ARRAY_SIZE(rkvdec_h264_vp9_decoded_fmts),
 		.decoded_fmts = rkvdec_h264_vp9_decoded_fmts,
+		.subsystem_flags = VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF,
 	},
 	{
 		.fourcc = V4L2_PIX_FMT_VP9_FRAME,
@@ -385,6 +386,9 @@ static int rkvdec_s_output_fmt(struct file *file, void *priv,
 	cap_fmt->fmt.pix_mp.ycbcr_enc = f->fmt.pix_mp.ycbcr_enc;
 	cap_fmt->fmt.pix_mp.quantization = f->fmt.pix_mp.quantization;
 
+	/* Enable format specific queue features */
+	vq->subsystem_flags |= desc->subsystem_flags;
+
 	return 0;
 }
 
diff --git a/drivers/staging/media/rkvdec/rkvdec.h b/drivers/staging/media/rkvdec/rkvdec.h
index 9df0fba799a4..633335ebb9c4 100644
--- a/drivers/staging/media/rkvdec/rkvdec.h
+++ b/drivers/staging/media/rkvdec/rkvdec.h
@@ -82,6 +82,7 @@ struct rkvdec_coded_fmt_desc {
 	const struct rkvdec_coded_fmt_ops *ops;
 	unsigned int num_decoded_fmts;
 	const u32 *decoded_fmts;
+	u32 subsystem_flags;
 };
 
 struct rkvdec_dev {
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 20/24] media: rkvdec: Enable capture buffer holding for H264
@ 2022-04-26 12:57   ` Nicolas Dufresne
  0 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Mauro Carvalho Chehab, Greg Kroah-Hartman
  Cc: nicolas, linux-media, Sebastian Fricke, linux-rockchip,
	linux-staging, linux-kernel

In order to support interlaced video decoding, the driver must
allow holding the capture buffer so that the second field can
be decoded into it.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
---
 drivers/staging/media/rkvdec/rkvdec.c | 4 ++++
 drivers/staging/media/rkvdec/rkvdec.h | 1 +
 2 files changed, 5 insertions(+)

diff --git a/drivers/staging/media/rkvdec/rkvdec.c b/drivers/staging/media/rkvdec/rkvdec.c
index 2bc4b1a40989..7bab7586918c 100644
--- a/drivers/staging/media/rkvdec/rkvdec.c
+++ b/drivers/staging/media/rkvdec/rkvdec.c
@@ -127,6 +127,7 @@ static const struct rkvdec_coded_fmt_desc rkvdec_coded_fmts[] = {
 		.ops = &rkvdec_h264_fmt_ops,
 		.num_decoded_fmts = ARRAY_SIZE(rkvdec_h264_vp9_decoded_fmts),
 		.decoded_fmts = rkvdec_h264_vp9_decoded_fmts,
+		.subsystem_flags = VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF,
 	},
 	{
 		.fourcc = V4L2_PIX_FMT_VP9_FRAME,
@@ -385,6 +386,9 @@ static int rkvdec_s_output_fmt(struct file *file, void *priv,
 	cap_fmt->fmt.pix_mp.ycbcr_enc = f->fmt.pix_mp.ycbcr_enc;
 	cap_fmt->fmt.pix_mp.quantization = f->fmt.pix_mp.quantization;
 
+	/* Enable format specific queue features */
+	vq->subsystem_flags |= desc->subsystem_flags;
+
 	return 0;
 }
 
diff --git a/drivers/staging/media/rkvdec/rkvdec.h b/drivers/staging/media/rkvdec/rkvdec.h
index 9df0fba799a4..633335ebb9c4 100644
--- a/drivers/staging/media/rkvdec/rkvdec.h
+++ b/drivers/staging/media/rkvdec/rkvdec.h
@@ -82,6 +82,7 @@ struct rkvdec_coded_fmt_desc {
 	const struct rkvdec_coded_fmt_ops *ops;
 	unsigned int num_decoded_fmts;
 	const u32 *decoded_fmts;
+	u32 subsystem_flags;
 };
 
 struct rkvdec_dev {
-- 
2.34.1


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 21/24] media: hantro: Stop using H.264 parameter pic_num
  2022-04-26 12:57 [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders Nicolas Dufresne
@ 2022-04-26 12:57   ` Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 02/24] media: v4l2-mem2mem: Trace on implicit un-hold Nicolas Dufresne
                     ` (22 subsequent siblings)
  23 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Philipp Zabel, Mauro Carvalho Chehab,
	Greg Kroah-Hartman
  Cc: nicolas, linux-media, Sebastian Fricke, linux-rockchip,
	linux-staging, linux-kernel

The hardware expects FrameNumWrap or long_term_frame_idx. Picture
numbers are per field, and are mostly used during the memory
management process, which is done in userland. This fixes two
ITU conformance tests:

  - MR6_BT_B
  - MR8_BT_B

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
---
 drivers/staging/media/hantro/hantro_h264.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/staging/media/hantro/hantro_h264.c b/drivers/staging/media/hantro/hantro_h264.c
index 0b4d2491be3b..228629fb3cdf 100644
--- a/drivers/staging/media/hantro/hantro_h264.c
+++ b/drivers/staging/media/hantro/hantro_h264.c
@@ -354,8 +354,6 @@ u16 hantro_h264_get_ref_nbr(struct hantro_ctx *ctx, unsigned int dpb_idx)
 
 	if (!(dpb->flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE))
 		return 0;
-	if (dpb->flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM)
-		return dpb->pic_num;
 	return dpb->frame_num;
 }
 
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 21/24] media: hantro: Stop using H.264 parameter pic_num
@ 2022-04-26 12:57   ` Nicolas Dufresne
  0 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Philipp Zabel, Mauro Carvalho Chehab,
	Greg Kroah-Hartman
  Cc: nicolas, linux-media, Sebastian Fricke, linux-rockchip,
	linux-staging, linux-kernel

The hardware expects FrameNumWrap or long_term_frame_idx. Picture
numbers are per field, and are mostly used during the memory
management process, which is done in userland. This fixes two
ITU conformance tests:

  - MR6_BT_B
  - MR8_BT_B

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
---
 drivers/staging/media/hantro/hantro_h264.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/staging/media/hantro/hantro_h264.c b/drivers/staging/media/hantro/hantro_h264.c
index 0b4d2491be3b..228629fb3cdf 100644
--- a/drivers/staging/media/hantro/hantro_h264.c
+++ b/drivers/staging/media/hantro/hantro_h264.c
@@ -354,8 +354,6 @@ u16 hantro_h264_get_ref_nbr(struct hantro_ctx *ctx, unsigned int dpb_idx)
 
 	if (!(dpb->flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE))
 		return 0;
-	if (dpb->flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM)
-		return dpb->pic_num;
 	return dpb->frame_num;
 }
 
-- 
2.34.1


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 22/24] media: hantro: h264: Make dpb entry management more robust
  2022-04-26 12:57 [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders Nicolas Dufresne
@ 2022-04-26 12:57   ` Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 02/24] media: v4l2-mem2mem: Trace on implicit un-hold Nicolas Dufresne
                     ` (22 subsequent siblings)
  23 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Philipp Zabel, Mauro Carvalho Chehab,
	Greg Kroah-Hartman
  Cc: nicolas, Jonas Karlman, linux-media, linux-rockchip,
	linux-staging, linux-kernel

From: Jonas Karlman <jonas@kwiboo.se>

The driver maintains stable slot locations for reference pictures. This
change makes the code more robust by using the reference_ts as key and
by marking all entries invalid right from the start.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
---
 drivers/staging/media/hantro/hantro_h264.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/media/hantro/hantro_h264.c b/drivers/staging/media/hantro/hantro_h264.c
index 228629fb3cdf..7377fc26f780 100644
--- a/drivers/staging/media/hantro/hantro_h264.c
+++ b/drivers/staging/media/hantro/hantro_h264.c
@@ -258,8 +258,7 @@ static void prepare_table(struct hantro_ctx *ctx)
 static bool dpb_entry_match(const struct v4l2_h264_dpb_entry *a,
 			    const struct v4l2_h264_dpb_entry *b)
 {
-	return a->top_field_order_cnt == b->top_field_order_cnt &&
-	       a->bottom_field_order_cnt == b->bottom_field_order_cnt;
+	return a->reference_ts == b->reference_ts;
 }
 
 static void update_dpb(struct hantro_ctx *ctx)
@@ -273,13 +272,13 @@ static void update_dpb(struct hantro_ctx *ctx)
 
 	/* Disable all entries by default. */
 	for (i = 0; i < ARRAY_SIZE(ctx->h264_dec.dpb); i++)
-		ctx->h264_dec.dpb[i].flags &= ~V4L2_H264_DPB_ENTRY_FLAG_ACTIVE;
+		ctx->h264_dec.dpb[i].flags = 0;
 
 	/* Try to match new DPB entries with existing ones by their POCs. */
 	for (i = 0; i < ARRAY_SIZE(dec_param->dpb); i++) {
 		const struct v4l2_h264_dpb_entry *ndpb = &dec_param->dpb[i];
 
-		if (!(ndpb->flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE))
+		if (!(ndpb->flags & V4L2_H264_DPB_ENTRY_FLAG_VALID))
 			continue;
 
 		/*
@@ -290,8 +289,7 @@ static void update_dpb(struct hantro_ctx *ctx)
 			struct v4l2_h264_dpb_entry *cdpb;
 
 			cdpb = &ctx->h264_dec.dpb[j];
-			if (cdpb->flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE ||
-			    !dpb_entry_match(cdpb, ndpb))
+			if (!dpb_entry_match(cdpb, ndpb))
 				continue;
 
 			*cdpb = *ndpb;
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 22/24] media: hantro: h264: Make dpb entry management more robust
@ 2022-04-26 12:57   ` Nicolas Dufresne
  0 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Philipp Zabel, Mauro Carvalho Chehab,
	Greg Kroah-Hartman
  Cc: nicolas, Jonas Karlman, linux-media, linux-rockchip,
	linux-staging, linux-kernel

From: Jonas Karlman <jonas@kwiboo.se>

The driver maintains stable slot locations for reference pictures. This
change makes the code more robust by using the reference_ts as key and
by marking all entries invalid right from the start.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
---
 drivers/staging/media/hantro/hantro_h264.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/media/hantro/hantro_h264.c b/drivers/staging/media/hantro/hantro_h264.c
index 228629fb3cdf..7377fc26f780 100644
--- a/drivers/staging/media/hantro/hantro_h264.c
+++ b/drivers/staging/media/hantro/hantro_h264.c
@@ -258,8 +258,7 @@ static void prepare_table(struct hantro_ctx *ctx)
 static bool dpb_entry_match(const struct v4l2_h264_dpb_entry *a,
 			    const struct v4l2_h264_dpb_entry *b)
 {
-	return a->top_field_order_cnt == b->top_field_order_cnt &&
-	       a->bottom_field_order_cnt == b->bottom_field_order_cnt;
+	return a->reference_ts == b->reference_ts;
 }
 
 static void update_dpb(struct hantro_ctx *ctx)
@@ -273,13 +272,13 @@ static void update_dpb(struct hantro_ctx *ctx)
 
 	/* Disable all entries by default. */
 	for (i = 0; i < ARRAY_SIZE(ctx->h264_dec.dpb); i++)
-		ctx->h264_dec.dpb[i].flags &= ~V4L2_H264_DPB_ENTRY_FLAG_ACTIVE;
+		ctx->h264_dec.dpb[i].flags = 0;
 
 	/* Try to match new DPB entries with existing ones by their POCs. */
 	for (i = 0; i < ARRAY_SIZE(dec_param->dpb); i++) {
 		const struct v4l2_h264_dpb_entry *ndpb = &dec_param->dpb[i];
 
-		if (!(ndpb->flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE))
+		if (!(ndpb->flags & V4L2_H264_DPB_ENTRY_FLAG_VALID))
 			continue;
 
 		/*
@@ -290,8 +289,7 @@ static void update_dpb(struct hantro_ctx *ctx)
 			struct v4l2_h264_dpb_entry *cdpb;
 
 			cdpb = &ctx->h264_dec.dpb[j];
-			if (cdpb->flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE ||
-			    !dpb_entry_match(cdpb, ndpb))
+			if (!dpb_entry_match(cdpb, ndpb))
 				continue;
 
 			*cdpb = *ndpb;
-- 
2.34.1


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 23/24] media: hantro: Add H.264 field decoding support
  2022-04-26 12:57 [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders Nicolas Dufresne
@ 2022-04-26 12:57   ` Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 02/24] media: v4l2-mem2mem: Trace on implicit un-hold Nicolas Dufresne
                     ` (22 subsequent siblings)
  23 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Philipp Zabel, Mauro Carvalho Chehab,
	Greg Kroah-Hartman
  Cc: nicolas, linux-media, Jonas Karlman, linux-rockchip,
	linux-staging, linux-kernel

This adds the required code to support field decoding. While most of
the code is derived from Rockchip and VSI reference code, the
reduction of the reference list to 16 entries was found by
trial and errors. The list consists of all the references with the
opposite field parity.

The strategy is to deduplicate the reference picture that points
to the same storage (same index). The choice of opposite parity has
been made to keep the other field of the current field pair in the
list. This method may not be robust if a field was lost.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
---
 drivers/staging/media/hantro/hantro_h264.c | 122 ++++++++++++++++++---
 drivers/staging/media/hantro/hantro_hw.h   |   1 +
 2 files changed, 109 insertions(+), 14 deletions(-)

diff --git a/drivers/staging/media/hantro/hantro_h264.c b/drivers/staging/media/hantro/hantro_h264.c
index 7377fc26f780..7502dddb324c 100644
--- a/drivers/staging/media/hantro/hantro_h264.c
+++ b/drivers/staging/media/hantro/hantro_h264.c
@@ -22,6 +22,12 @@
 #define POC_BUFFER_SIZE			34
 #define SCALING_LIST_SIZE		(6 * 16 + 2 * 64)
 
+/*
+ * For valid and long term reference marking, index are reversed, so bit 31
+ * indicates the status of the picture 0.
+ */
+#define REF_BIT(i)			BIT(32 - 1 - (i))
+
 /* Data structure describing auxiliary buffer format. */
 struct hantro_h264_dec_priv_tbl {
 	u32 cabac_table[CABAC_INIT_BUFFER_SIZE];
@@ -227,6 +233,7 @@ static void prepare_table(struct hantro_ctx *ctx)
 {
 	const struct hantro_h264_dec_ctrls *ctrls = &ctx->h264_dec.ctrls;
 	const struct v4l2_ctrl_h264_decode_params *dec_param = ctrls->decode;
+	const struct v4l2_ctrl_h264_sps *sps = ctrls->sps;
 	struct hantro_h264_dec_priv_tbl *tbl = ctx->h264_dec.priv.cpu;
 	const struct v4l2_h264_dpb_entry *dpb = ctx->h264_dec.dpb;
 	u32 dpb_longterm = 0;
@@ -237,20 +244,45 @@ static void prepare_table(struct hantro_ctx *ctx)
 		tbl->poc[i * 2] = dpb[i].top_field_order_cnt;
 		tbl->poc[i * 2 + 1] = dpb[i].bottom_field_order_cnt;
 
+		if (!(dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_VALID))
+			continue;
+
 		/*
 		 * Set up bit maps of valid and long term DPBs.
-		 * NOTE: The bits are reversed, i.e. MSb is DPB 0.
+		 * NOTE: The bits are reversed, i.e. MSb is DPB 0. For frame
+		 * decoding, bit 31 to 15 are used, while for field decoding,
+		 * all bits are used, with bit 31 being a top field, 30 a bottom
+		 * field and so on.
 		 */
-		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)
-			dpb_valid |= BIT(HANTRO_H264_DPB_SIZE - 1 - i);
-		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM)
-			dpb_longterm |= BIT(HANTRO_H264_DPB_SIZE - 1 - i);
+		if (dec_param->flags & V4L2_H264_DECODE_PARAM_FLAG_FIELD_PIC) {
+			if (dpb[i].fields & V4L2_H264_TOP_FIELD_REF)
+				dpb_valid |= REF_BIT(i * 2);
+
+			if (dpb[i].fields & V4L2_H264_BOTTOM_FIELD_REF)
+				dpb_valid |= REF_BIT(i * 2 + 1);
+
+			if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM) {
+				dpb_longterm |= REF_BIT(i * 2);
+				dpb_longterm |= REF_BIT(i * 2 + 1);
+			}
+		} else {
+			dpb_valid |= REF_BIT(i);
+
+			if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM)
+				dpb_longterm |= REF_BIT(i);
+		}
+	}
+	ctx->h264_dec.dpb_valid = dpb_valid;
+	ctx->h264_dec.dpb_longterm = dpb_longterm;
+
+	if ((dec_param->flags & V4L2_H264_DECODE_PARAM_FLAG_FIELD_PIC) ||
+	    !(sps->flags & V4L2_H264_SPS_FLAG_MB_ADAPTIVE_FRAME_FIELD)) {
+		tbl->poc[32] = ctx->h264_dec.cur_poc;
+		tbl->poc[33] = 0;
+	} else {
+		tbl->poc[32] = dec_param->top_field_order_cnt;
+		tbl->poc[33] = dec_param->bottom_field_order_cnt;
 	}
-	ctx->h264_dec.dpb_valid = dpb_valid << 16;
-	ctx->h264_dec.dpb_longterm = dpb_longterm << 16;
-
-	tbl->poc[32] = dec_param->top_field_order_cnt;
-	tbl->poc[33] = dec_param->bottom_field_order_cnt;
 
 	assemble_scaling_list(ctx);
 }
@@ -326,6 +358,8 @@ dma_addr_t hantro_h264_get_ref_buf(struct hantro_ctx *ctx,
 {
 	struct v4l2_h264_dpb_entry *dpb = ctx->h264_dec.dpb;
 	dma_addr_t dma_addr = 0;
+	s32 cur_poc = ctx->h264_dec.cur_poc;
+	u32 flags;
 
 	if (dpb[dpb_idx].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)
 		dma_addr = hantro_get_ref(ctx, dpb[dpb_idx].reference_ts);
@@ -343,7 +377,12 @@ dma_addr_t hantro_h264_get_ref_buf(struct hantro_ctx *ctx,
 		dma_addr = hantro_get_dec_buf_addr(ctx, buf);
 	}
 
-	return dma_addr;
+	flags = dpb[dpb_idx].flags & V4L2_H264_DPB_ENTRY_FLAG_FIELD ? 0x2 : 0;
+	flags |= abs(dpb[dpb_idx].top_field_order_cnt - cur_poc) <
+		 abs(dpb[dpb_idx].bottom_field_order_cnt - cur_poc) ?
+		 0x1 : 0;
+
+	return dma_addr | flags;
 }
 
 u16 hantro_h264_get_ref_nbr(struct hantro_ctx *ctx, unsigned int dpb_idx)
@@ -355,6 +394,47 @@ u16 hantro_h264_get_ref_nbr(struct hantro_ctx *ctx, unsigned int dpb_idx)
 	return dpb->frame_num;
 }
 
+/*
+ * Removes all references with he same parity as current picture from the
+ * reference list. The remaining list will have references with the opposite
+ * parity. This is effectively a deduplication of references since each buffer
+ * stores two fields. For this eason, each buffer are found twice in the
+ * reference list.
+ *
+ * This technique has been chosen through trial and error. This simple approach
+ * resulted in the highest conformance score. Note that this method may suffer
+ * worse quality in the case an opposite reference frame has been lost. If this
+ * becomes a problem in the future, it should be possible to add a preprocessing
+ * to identify un-paired fields and avoid removing them.
+ */
+static void deduplicate_reflist(struct v4l2_h264_reflist_builder *b,
+				struct v4l2_h264_reference *reflist)
+{
+	int write_idx = 0;
+	int i;
+
+	if (b->cur_pic_fields == V4L2_H264_FRAME_REF) {
+		write_idx = b->num_valid;
+		goto done;
+	}
+
+	for (i = 0; i < b->num_valid; i++) {
+		if (!(b->cur_pic_fields == reflist[i].fields)) {
+			reflist[write_idx++] = reflist[i];
+			continue;
+		}
+	}
+
+done:
+	/* Should not happen unless we have a bug in the reflist builder. */
+	if (WARN_ON(write_idx > 16))
+		write_idx = 16;
+
+	/* Clear the remaining, some streams fails otherwise */
+	for (; write_idx < 16; write_idx++)
+		reflist[write_idx].index = 15;
+}
+
 int hantro_h264_dec_prepare_run(struct hantro_ctx *ctx)
 {
 	struct hantro_h264_dec_hw_ctx *h264_ctx = &ctx->h264_dec;
@@ -386,15 +466,29 @@ int hantro_h264_dec_prepare_run(struct hantro_ctx *ctx)
 	/* Update the DPB with new refs. */
 	update_dpb(ctx);
 
-	/* Prepare data in memory. */
-	prepare_table(ctx);
-
 	/* Build the P/B{0,1} ref lists. */
 	v4l2_h264_init_reflist_builder(&reflist_builder, ctrls->decode,
 				       ctrls->sps, ctx->h264_dec.dpb);
+	h264_ctx->cur_poc = reflist_builder.cur_pic_order_count;
+
+	/* Prepare data in memory. */
+	prepare_table(ctx);
+
 	v4l2_h264_build_p_ref_list(&reflist_builder, h264_ctx->reflists.p);
 	v4l2_h264_build_b_ref_lists(&reflist_builder, h264_ctx->reflists.b0,
 				    h264_ctx->reflists.b1);
+
+	/*
+	 * Reduce ref lists to at most 16 entries, Hantro hardware will deduce
+	 * the actual picture lists in field through the dpb_valid,
+	 * dpb_longterm bitmap along with the current frame parity.
+	 */
+	if (reflist_builder.cur_pic_fields != V4L2_H264_FRAME_REF) {
+		deduplicate_reflist(&reflist_builder, h264_ctx->reflists.p);
+		deduplicate_reflist(&reflist_builder, h264_ctx->reflists.b0);
+		deduplicate_reflist(&reflist_builder, h264_ctx->reflists.b1);
+	}
+
 	return 0;
 }
 
diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
index 292aaaabaf24..fd869369fb97 100644
--- a/drivers/staging/media/hantro/hantro_hw.h
+++ b/drivers/staging/media/hantro/hantro_hw.h
@@ -91,6 +91,7 @@ struct hantro_h264_dec_hw_ctx {
 	struct hantro_h264_dec_ctrls ctrls;
 	u32 dpb_longterm;
 	u32 dpb_valid;
+	s32 cur_poc;
 };
 
 /**
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 23/24] media: hantro: Add H.264 field decoding support
@ 2022-04-26 12:57   ` Nicolas Dufresne
  0 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Philipp Zabel, Mauro Carvalho Chehab,
	Greg Kroah-Hartman
  Cc: nicolas, linux-media, Jonas Karlman, linux-rockchip,
	linux-staging, linux-kernel

This adds the required code to support field decoding. While most of
the code is derived from Rockchip and VSI reference code, the
reduction of the reference list to 16 entries was found by
trial and errors. The list consists of all the references with the
opposite field parity.

The strategy is to deduplicate the reference picture that points
to the same storage (same index). The choice of opposite parity has
been made to keep the other field of the current field pair in the
list. This method may not be robust if a field was lost.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
---
 drivers/staging/media/hantro/hantro_h264.c | 122 ++++++++++++++++++---
 drivers/staging/media/hantro/hantro_hw.h   |   1 +
 2 files changed, 109 insertions(+), 14 deletions(-)

diff --git a/drivers/staging/media/hantro/hantro_h264.c b/drivers/staging/media/hantro/hantro_h264.c
index 7377fc26f780..7502dddb324c 100644
--- a/drivers/staging/media/hantro/hantro_h264.c
+++ b/drivers/staging/media/hantro/hantro_h264.c
@@ -22,6 +22,12 @@
 #define POC_BUFFER_SIZE			34
 #define SCALING_LIST_SIZE		(6 * 16 + 2 * 64)
 
+/*
+ * For valid and long term reference marking, index are reversed, so bit 31
+ * indicates the status of the picture 0.
+ */
+#define REF_BIT(i)			BIT(32 - 1 - (i))
+
 /* Data structure describing auxiliary buffer format. */
 struct hantro_h264_dec_priv_tbl {
 	u32 cabac_table[CABAC_INIT_BUFFER_SIZE];
@@ -227,6 +233,7 @@ static void prepare_table(struct hantro_ctx *ctx)
 {
 	const struct hantro_h264_dec_ctrls *ctrls = &ctx->h264_dec.ctrls;
 	const struct v4l2_ctrl_h264_decode_params *dec_param = ctrls->decode;
+	const struct v4l2_ctrl_h264_sps *sps = ctrls->sps;
 	struct hantro_h264_dec_priv_tbl *tbl = ctx->h264_dec.priv.cpu;
 	const struct v4l2_h264_dpb_entry *dpb = ctx->h264_dec.dpb;
 	u32 dpb_longterm = 0;
@@ -237,20 +244,45 @@ static void prepare_table(struct hantro_ctx *ctx)
 		tbl->poc[i * 2] = dpb[i].top_field_order_cnt;
 		tbl->poc[i * 2 + 1] = dpb[i].bottom_field_order_cnt;
 
+		if (!(dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_VALID))
+			continue;
+
 		/*
 		 * Set up bit maps of valid and long term DPBs.
-		 * NOTE: The bits are reversed, i.e. MSb is DPB 0.
+		 * NOTE: The bits are reversed, i.e. MSb is DPB 0. For frame
+		 * decoding, bit 31 to 15 are used, while for field decoding,
+		 * all bits are used, with bit 31 being a top field, 30 a bottom
+		 * field and so on.
 		 */
-		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)
-			dpb_valid |= BIT(HANTRO_H264_DPB_SIZE - 1 - i);
-		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM)
-			dpb_longterm |= BIT(HANTRO_H264_DPB_SIZE - 1 - i);
+		if (dec_param->flags & V4L2_H264_DECODE_PARAM_FLAG_FIELD_PIC) {
+			if (dpb[i].fields & V4L2_H264_TOP_FIELD_REF)
+				dpb_valid |= REF_BIT(i * 2);
+
+			if (dpb[i].fields & V4L2_H264_BOTTOM_FIELD_REF)
+				dpb_valid |= REF_BIT(i * 2 + 1);
+
+			if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM) {
+				dpb_longterm |= REF_BIT(i * 2);
+				dpb_longterm |= REF_BIT(i * 2 + 1);
+			}
+		} else {
+			dpb_valid |= REF_BIT(i);
+
+			if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM)
+				dpb_longterm |= REF_BIT(i);
+		}
+	}
+	ctx->h264_dec.dpb_valid = dpb_valid;
+	ctx->h264_dec.dpb_longterm = dpb_longterm;
+
+	if ((dec_param->flags & V4L2_H264_DECODE_PARAM_FLAG_FIELD_PIC) ||
+	    !(sps->flags & V4L2_H264_SPS_FLAG_MB_ADAPTIVE_FRAME_FIELD)) {
+		tbl->poc[32] = ctx->h264_dec.cur_poc;
+		tbl->poc[33] = 0;
+	} else {
+		tbl->poc[32] = dec_param->top_field_order_cnt;
+		tbl->poc[33] = dec_param->bottom_field_order_cnt;
 	}
-	ctx->h264_dec.dpb_valid = dpb_valid << 16;
-	ctx->h264_dec.dpb_longterm = dpb_longterm << 16;
-
-	tbl->poc[32] = dec_param->top_field_order_cnt;
-	tbl->poc[33] = dec_param->bottom_field_order_cnt;
 
 	assemble_scaling_list(ctx);
 }
@@ -326,6 +358,8 @@ dma_addr_t hantro_h264_get_ref_buf(struct hantro_ctx *ctx,
 {
 	struct v4l2_h264_dpb_entry *dpb = ctx->h264_dec.dpb;
 	dma_addr_t dma_addr = 0;
+	s32 cur_poc = ctx->h264_dec.cur_poc;
+	u32 flags;
 
 	if (dpb[dpb_idx].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)
 		dma_addr = hantro_get_ref(ctx, dpb[dpb_idx].reference_ts);
@@ -343,7 +377,12 @@ dma_addr_t hantro_h264_get_ref_buf(struct hantro_ctx *ctx,
 		dma_addr = hantro_get_dec_buf_addr(ctx, buf);
 	}
 
-	return dma_addr;
+	flags = dpb[dpb_idx].flags & V4L2_H264_DPB_ENTRY_FLAG_FIELD ? 0x2 : 0;
+	flags |= abs(dpb[dpb_idx].top_field_order_cnt - cur_poc) <
+		 abs(dpb[dpb_idx].bottom_field_order_cnt - cur_poc) ?
+		 0x1 : 0;
+
+	return dma_addr | flags;
 }
 
 u16 hantro_h264_get_ref_nbr(struct hantro_ctx *ctx, unsigned int dpb_idx)
@@ -355,6 +394,47 @@ u16 hantro_h264_get_ref_nbr(struct hantro_ctx *ctx, unsigned int dpb_idx)
 	return dpb->frame_num;
 }
 
+/*
+ * Removes all references with he same parity as current picture from the
+ * reference list. The remaining list will have references with the opposite
+ * parity. This is effectively a deduplication of references since each buffer
+ * stores two fields. For this eason, each buffer are found twice in the
+ * reference list.
+ *
+ * This technique has been chosen through trial and error. This simple approach
+ * resulted in the highest conformance score. Note that this method may suffer
+ * worse quality in the case an opposite reference frame has been lost. If this
+ * becomes a problem in the future, it should be possible to add a preprocessing
+ * to identify un-paired fields and avoid removing them.
+ */
+static void deduplicate_reflist(struct v4l2_h264_reflist_builder *b,
+				struct v4l2_h264_reference *reflist)
+{
+	int write_idx = 0;
+	int i;
+
+	if (b->cur_pic_fields == V4L2_H264_FRAME_REF) {
+		write_idx = b->num_valid;
+		goto done;
+	}
+
+	for (i = 0; i < b->num_valid; i++) {
+		if (!(b->cur_pic_fields == reflist[i].fields)) {
+			reflist[write_idx++] = reflist[i];
+			continue;
+		}
+	}
+
+done:
+	/* Should not happen unless we have a bug in the reflist builder. */
+	if (WARN_ON(write_idx > 16))
+		write_idx = 16;
+
+	/* Clear the remaining, some streams fails otherwise */
+	for (; write_idx < 16; write_idx++)
+		reflist[write_idx].index = 15;
+}
+
 int hantro_h264_dec_prepare_run(struct hantro_ctx *ctx)
 {
 	struct hantro_h264_dec_hw_ctx *h264_ctx = &ctx->h264_dec;
@@ -386,15 +466,29 @@ int hantro_h264_dec_prepare_run(struct hantro_ctx *ctx)
 	/* Update the DPB with new refs. */
 	update_dpb(ctx);
 
-	/* Prepare data in memory. */
-	prepare_table(ctx);
-
 	/* Build the P/B{0,1} ref lists. */
 	v4l2_h264_init_reflist_builder(&reflist_builder, ctrls->decode,
 				       ctrls->sps, ctx->h264_dec.dpb);
+	h264_ctx->cur_poc = reflist_builder.cur_pic_order_count;
+
+	/* Prepare data in memory. */
+	prepare_table(ctx);
+
 	v4l2_h264_build_p_ref_list(&reflist_builder, h264_ctx->reflists.p);
 	v4l2_h264_build_b_ref_lists(&reflist_builder, h264_ctx->reflists.b0,
 				    h264_ctx->reflists.b1);
+
+	/*
+	 * Reduce ref lists to at most 16 entries, Hantro hardware will deduce
+	 * the actual picture lists in field through the dpb_valid,
+	 * dpb_longterm bitmap along with the current frame parity.
+	 */
+	if (reflist_builder.cur_pic_fields != V4L2_H264_FRAME_REF) {
+		deduplicate_reflist(&reflist_builder, h264_ctx->reflists.p);
+		deduplicate_reflist(&reflist_builder, h264_ctx->reflists.b0);
+		deduplicate_reflist(&reflist_builder, h264_ctx->reflists.b1);
+	}
+
 	return 0;
 }
 
diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
index 292aaaabaf24..fd869369fb97 100644
--- a/drivers/staging/media/hantro/hantro_hw.h
+++ b/drivers/staging/media/hantro/hantro_hw.h
@@ -91,6 +91,7 @@ struct hantro_h264_dec_hw_ctx {
 	struct hantro_h264_dec_ctrls ctrls;
 	u32 dpb_longterm;
 	u32 dpb_valid;
+	s32 cur_poc;
 };
 
 /**
-- 
2.34.1


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 24/24] media: hantro: Enable HOLD_CAPTURE_BUF for H.264
  2022-04-26 12:57 [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders Nicolas Dufresne
@ 2022-04-26 12:57   ` Nicolas Dufresne
  2022-04-26 12:57 ` [PATCH v4 02/24] media: v4l2-mem2mem: Trace on implicit un-hold Nicolas Dufresne
                     ` (22 subsequent siblings)
  23 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Philipp Zabel, Mauro Carvalho Chehab,
	Greg Kroah-Hartman
  Cc: nicolas, linux-media, Sebastian Fricke, linux-rockchip,
	linux-staging, linux-kernel

This is needed to optimize field decoding. Each field will be
decoded into the same capture buffer. To be able to queue multiple
buffers, we need to be able to ask the driver to hold the capture
buffer.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
---
 drivers/staging/media/hantro/hantro_v4l2.c | 25 ++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/drivers/staging/media/hantro/hantro_v4l2.c b/drivers/staging/media/hantro/hantro_v4l2.c
index 67148ba346f5..50d636678ff3 100644
--- a/drivers/staging/media/hantro/hantro_v4l2.c
+++ b/drivers/staging/media/hantro/hantro_v4l2.c
@@ -409,6 +409,30 @@ hantro_update_requires_request(struct hantro_ctx *ctx, u32 fourcc)
 	}
 }
 
+static void
+hantro_update_requires_hold_capture_buf(struct hantro_ctx *ctx, u32 fourcc)
+{
+	struct vb2_queue *vq;
+
+	vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
+			     V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
+
+	switch (fourcc) {
+	case V4L2_PIX_FMT_JPEG:
+	case V4L2_PIX_FMT_MPEG2_SLICE:
+	case V4L2_PIX_FMT_VP8_FRAME:
+	case V4L2_PIX_FMT_HEVC_SLICE:
+	case V4L2_PIX_FMT_VP9_FRAME:
+		vq->subsystem_flags &= ~(VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF);
+		break;
+	case V4L2_PIX_FMT_H264_SLICE:
+		vq->subsystem_flags |= VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF;
+		break;
+	default:
+		break;
+	}
+}
+
 static int hantro_set_fmt_out(struct hantro_ctx *ctx,
 			      struct v4l2_pix_format_mplane *pix_mp)
 {
@@ -472,6 +496,7 @@ static int hantro_set_fmt_out(struct hantro_ctx *ctx,
 	ctx->dst_fmt.quantization = pix_mp->quantization;
 
 	hantro_update_requires_request(ctx, pix_mp->pixelformat);
+	hantro_update_requires_hold_capture_buf(ctx, pix_mp->pixelformat);
 
 	vpu_debug(0, "OUTPUT codec mode: %d\n", ctx->vpu_src_fmt->codec_mode);
 	vpu_debug(0, "fmt - w: %d, h: %d\n",
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 55+ messages in thread

* [PATCH v4 24/24] media: hantro: Enable HOLD_CAPTURE_BUF for H.264
@ 2022-04-26 12:57   ` Nicolas Dufresne
  0 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-26 12:57 UTC (permalink / raw)
  To: Ezequiel Garcia, Philipp Zabel, Mauro Carvalho Chehab,
	Greg Kroah-Hartman
  Cc: nicolas, linux-media, Sebastian Fricke, linux-rockchip,
	linux-staging, linux-kernel

This is needed to optimize field decoding. Each field will be
decoded into the same capture buffer. To be able to queue multiple
buffers, we need to be able to ask the driver to hold the capture
buffer.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
---
 drivers/staging/media/hantro/hantro_v4l2.c | 25 ++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/drivers/staging/media/hantro/hantro_v4l2.c b/drivers/staging/media/hantro/hantro_v4l2.c
index 67148ba346f5..50d636678ff3 100644
--- a/drivers/staging/media/hantro/hantro_v4l2.c
+++ b/drivers/staging/media/hantro/hantro_v4l2.c
@@ -409,6 +409,30 @@ hantro_update_requires_request(struct hantro_ctx *ctx, u32 fourcc)
 	}
 }
 
+static void
+hantro_update_requires_hold_capture_buf(struct hantro_ctx *ctx, u32 fourcc)
+{
+	struct vb2_queue *vq;
+
+	vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
+			     V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
+
+	switch (fourcc) {
+	case V4L2_PIX_FMT_JPEG:
+	case V4L2_PIX_FMT_MPEG2_SLICE:
+	case V4L2_PIX_FMT_VP8_FRAME:
+	case V4L2_PIX_FMT_HEVC_SLICE:
+	case V4L2_PIX_FMT_VP9_FRAME:
+		vq->subsystem_flags &= ~(VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF);
+		break;
+	case V4L2_PIX_FMT_H264_SLICE:
+		vq->subsystem_flags |= VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF;
+		break;
+	default:
+		break;
+	}
+}
+
 static int hantro_set_fmt_out(struct hantro_ctx *ctx,
 			      struct v4l2_pix_format_mplane *pix_mp)
 {
@@ -472,6 +496,7 @@ static int hantro_set_fmt_out(struct hantro_ctx *ctx,
 	ctx->dst_fmt.quantization = pix_mp->quantization;
 
 	hantro_update_requires_request(ctx, pix_mp->pixelformat);
+	hantro_update_requires_hold_capture_buf(ctx, pix_mp->pixelformat);
 
 	vpu_debug(0, "OUTPUT codec mode: %d\n", ctx->vpu_src_fmt->codec_mode);
 	vpu_debug(0, "fmt - w: %d, h: %d\n",
-- 
2.34.1


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

^ permalink raw reply related	[flat|nested] 55+ messages in thread

* Re: [PATCH v4 03/24] media: videobuf2-v4l2: Warn on holding buffers without support
  2022-04-26 12:57 ` [PATCH v4 03/24] media: videobuf2-v4l2: Warn on holding buffers without support Nicolas Dufresne
@ 2022-04-27  4:31   ` Tomasz Figa
  2022-04-27 15:08     ` Nicolas Dufresne
  0 siblings, 1 reply; 55+ messages in thread
From: Tomasz Figa @ 2022-04-27  4:31 UTC (permalink / raw)
  To: Nicolas Dufresne, Marek Szyprowski, Mauro Carvalho Chehab, Hans Verkuil
  Cc: nicolas, Sebastian Fricke, linux-media, Ezequiel Garcia, linux-kernel

Hi Nicolas, Sebastian,

On Tue, Apr 26, 2022 at 9:58 PM Nicolas Dufresne
<nicolas.dufresne@collabora.com> wrote:
>
> From: Sebastian Fricke <sebastian.fricke@collabora.com>
>
> Using V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF flag without specifying the
> subsystem flag VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF, results in
> silently ignoring it.
> Warn the user via a debug print when the flag is requested but ignored
> by the videobuf2 framework.
>
> Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
> Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
> Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
> ---
>  drivers/media/common/videobuf2/videobuf2-v4l2.c | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
>

Thanks for the patch. Please see my comments inline.

> diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
> index 6edf4508c636..812c8d1962e0 100644
> --- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
> +++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
> @@ -329,8 +329,13 @@ static int vb2_fill_vb2_v4l2_buffer(struct vb2_buffer *vb, struct v4l2_buffer *b
>                  */
>                 vbuf->flags &= ~V4L2_BUF_FLAG_TIMECODE;
>                 vbuf->field = b->field;
> -               if (!(q->subsystem_flags & VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF))
> +               if (!(q->subsystem_flags & VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF)) {
> +                       if (vbuf->flags & V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF)
> +                               dprintk(q, 1,
> +                                       "Request holding buffer (%d), unsupported on output queue\n",
> +                                       b->index);

I wonder if we shouldn't just fail such a QBUF operation. Otherwise
the application would get unexpected behavior from the kernel.
Although it might be too late to do it now if there are applications
that rely on this implicit ignore...

Best regards,
Tomasz

^ permalink raw reply	[flat|nested] 55+ messages in thread

* Re: [PATCH v4 03/24] media: videobuf2-v4l2: Warn on holding buffers without support
  2022-04-27  4:31   ` Tomasz Figa
@ 2022-04-27 15:08     ` Nicolas Dufresne
  2022-04-28  6:12       ` Hans Verkuil
  0 siblings, 1 reply; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-27 15:08 UTC (permalink / raw)
  To: Tomasz Figa, Marek Szyprowski, Mauro Carvalho Chehab, Hans Verkuil
  Cc: Sebastian Fricke, linux-media, Ezequiel Garcia, linux-kernel

Le mercredi 27 avril 2022 à 13:31 +0900, Tomasz Figa a écrit :
> Hi Nicolas, Sebastian,
> 
> On Tue, Apr 26, 2022 at 9:58 PM Nicolas Dufresne
> <nicolas.dufresne@collabora.com> wrote:
> > 
> > From: Sebastian Fricke <sebastian.fricke@collabora.com>
> > 
> > Using V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF flag without specifying the
> > subsystem flag VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF, results in
> > silently ignoring it.
> > Warn the user via a debug print when the flag is requested but ignored
> > by the videobuf2 framework.
> > 
> > Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
> > Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
> > Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
> > ---
> >  drivers/media/common/videobuf2/videobuf2-v4l2.c | 7 ++++++-
> >  1 file changed, 6 insertions(+), 1 deletion(-)
> > 
> 
> Thanks for the patch. Please see my comments inline.
> 
> > diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
> > index 6edf4508c636..812c8d1962e0 100644
> > --- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
> > +++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
> > @@ -329,8 +329,13 @@ static int vb2_fill_vb2_v4l2_buffer(struct vb2_buffer *vb, struct v4l2_buffer *b
> >                  */
> >                 vbuf->flags &= ~V4L2_BUF_FLAG_TIMECODE;
> >                 vbuf->field = b->field;
> > -               if (!(q->subsystem_flags & VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF))
> > +               if (!(q->subsystem_flags & VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF)) {
> > +                       if (vbuf->flags & V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF)
> > +                               dprintk(q, 1,
> > +                                       "Request holding buffer (%d), unsupported on output queue\n",
> > +                                       b->index);
> 
> I wonder if we shouldn't just fail such a QBUF operation. Otherwise
> the application would get unexpected behavior from the kernel.
> Although it might be too late to do it now if there are applications
> that rely on this implicit ignore...

In the context of this patchset, the statu quo seems to be the logical thing to
do. We can raise this up in a separate thread. The side effect is of course
confusing for developers, but it is hard for me to tell if a hard failure may
break an existing software.

regards,
Nicolas

> 
> Best regards,
> Tomasz


^ permalink raw reply	[flat|nested] 55+ messages in thread

* Re: [PATCH v4 03/24] media: videobuf2-v4l2: Warn on holding buffers without support
  2022-04-27 15:08     ` Nicolas Dufresne
@ 2022-04-28  6:12       ` Hans Verkuil
  2022-04-28 13:09         ` Nicolas Dufresne
  0 siblings, 1 reply; 55+ messages in thread
From: Hans Verkuil @ 2022-04-28  6:12 UTC (permalink / raw)
  To: Nicolas Dufresne, Tomasz Figa, Marek Szyprowski, Mauro Carvalho Chehab
  Cc: Sebastian Fricke, linux-media, Ezequiel Garcia, linux-kernel

On 27/04/2022 17:08, Nicolas Dufresne wrote:
> Le mercredi 27 avril 2022 à 13:31 +0900, Tomasz Figa a écrit :
>> Hi Nicolas, Sebastian,
>>
>> On Tue, Apr 26, 2022 at 9:58 PM Nicolas Dufresne
>> <nicolas.dufresne@collabora.com> wrote:
>>>
>>> From: Sebastian Fricke <sebastian.fricke@collabora.com>
>>>
>>> Using V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF flag without specifying the
>>> subsystem flag VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF, results in
>>> silently ignoring it.
>>> Warn the user via a debug print when the flag is requested but ignored
>>> by the videobuf2 framework.
>>>
>>> Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
>>> Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
>>> Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
>>> ---
>>>  drivers/media/common/videobuf2/videobuf2-v4l2.c | 7 ++++++-
>>>  1 file changed, 6 insertions(+), 1 deletion(-)
>>>
>>
>> Thanks for the patch. Please see my comments inline.
>>
>>> diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
>>> index 6edf4508c636..812c8d1962e0 100644
>>> --- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
>>> +++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
>>> @@ -329,8 +329,13 @@ static int vb2_fill_vb2_v4l2_buffer(struct vb2_buffer *vb, struct v4l2_buffer *b
>>>                  */
>>>                 vbuf->flags &= ~V4L2_BUF_FLAG_TIMECODE;
>>>                 vbuf->field = b->field;
>>> -               if (!(q->subsystem_flags & VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF))
>>> +               if (!(q->subsystem_flags & VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF)) {
>>> +                       if (vbuf->flags & V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF)
>>> +                               dprintk(q, 1,
>>> +                                       "Request holding buffer (%d), unsupported on output queue\n",
>>> +                                       b->index);
>>
>> I wonder if we shouldn't just fail such a QBUF operation. Otherwise
>> the application would get unexpected behavior from the kernel.
>> Although it might be too late to do it now if there are applications
>> that rely on this implicit ignore...
> 
> In the context of this patchset, the statu quo seems to be the logical thing to
> do. We can raise this up in a separate thread. The side effect is of course
> confusing for developers, but it is hard for me to tell if a hard failure may
> break an existing software.

I am leaning towards returning an error as well. It makes no sense to try
to hold on to a buffer when this is not supported.

I also thought that it should be enough to rely on the core to clear the
flag upon return if it isn't supported, but looking through the vb2 core code
it looks like we're not clearing unknown flags at all, so running this for
older kernels that do not support holding at all will not clear the flag
either.

The handling for flags in vb2 can be improved, I think I'll take a look at
that myself.

I plan to merge this series soon, but will skip this patch for now.

Regards,

	Hans

> 
> regards,
> Nicolas
> 
>>
>> Best regards,
>> Tomasz
> 


^ permalink raw reply	[flat|nested] 55+ messages in thread

* Re: [PATCH v4 23/24] media: hantro: Add H.264 field decoding support
  2022-04-26 12:57   ` Nicolas Dufresne
@ 2022-04-28  8:50     ` Hans Verkuil
  -1 siblings, 0 replies; 55+ messages in thread
From: Hans Verkuil @ 2022-04-28  8:50 UTC (permalink / raw)
  To: Nicolas Dufresne, Ezequiel Garcia, Philipp Zabel,
	Mauro Carvalho Chehab, Greg Kroah-Hartman
  Cc: nicolas, linux-media, Jonas Karlman, linux-rockchip,
	linux-staging, linux-kernel

On 26/04/2022 14:57, Nicolas Dufresne wrote:
> This adds the required code to support field decoding. While most of
> the code is derived from Rockchip and VSI reference code, the
> reduction of the reference list to 16 entries was found by
> trial and errors. The list consists of all the references with the
> opposite field parity.
> 
> The strategy is to deduplicate the reference picture that points
> to the same storage (same index). The choice of opposite parity has
> been made to keep the other field of the current field pair in the
> list. This method may not be robust if a field was lost.
> 
> Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
> Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
> ---
>  drivers/staging/media/hantro/hantro_h264.c | 122 ++++++++++++++++++---
>  drivers/staging/media/hantro/hantro_hw.h   |   1 +
>  2 files changed, 109 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/staging/media/hantro/hantro_h264.c b/drivers/staging/media/hantro/hantro_h264.c
> index 7377fc26f780..7502dddb324c 100644
> --- a/drivers/staging/media/hantro/hantro_h264.c
> +++ b/drivers/staging/media/hantro/hantro_h264.c
> @@ -22,6 +22,12 @@
>  #define POC_BUFFER_SIZE			34
>  #define SCALING_LIST_SIZE		(6 * 16 + 2 * 64)
>  
> +/*
> + * For valid and long term reference marking, index are reversed, so bit 31
> + * indicates the status of the picture 0.
> + */
> +#define REF_BIT(i)			BIT(32 - 1 - (i))
> +
>  /* Data structure describing auxiliary buffer format. */
>  struct hantro_h264_dec_priv_tbl {
>  	u32 cabac_table[CABAC_INIT_BUFFER_SIZE];
> @@ -227,6 +233,7 @@ static void prepare_table(struct hantro_ctx *ctx)
>  {
>  	const struct hantro_h264_dec_ctrls *ctrls = &ctx->h264_dec.ctrls;
>  	const struct v4l2_ctrl_h264_decode_params *dec_param = ctrls->decode;
> +	const struct v4l2_ctrl_h264_sps *sps = ctrls->sps;
>  	struct hantro_h264_dec_priv_tbl *tbl = ctx->h264_dec.priv.cpu;
>  	const struct v4l2_h264_dpb_entry *dpb = ctx->h264_dec.dpb;
>  	u32 dpb_longterm = 0;
> @@ -237,20 +244,45 @@ static void prepare_table(struct hantro_ctx *ctx)
>  		tbl->poc[i * 2] = dpb[i].top_field_order_cnt;
>  		tbl->poc[i * 2 + 1] = dpb[i].bottom_field_order_cnt;
>  
> +		if (!(dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_VALID))
> +			continue;
> +
>  		/*
>  		 * Set up bit maps of valid and long term DPBs.
> -		 * NOTE: The bits are reversed, i.e. MSb is DPB 0.
> +		 * NOTE: The bits are reversed, i.e. MSb is DPB 0. For frame
> +		 * decoding, bit 31 to 15 are used, while for field decoding,
> +		 * all bits are used, with bit 31 being a top field, 30 a bottom
> +		 * field and so on.
>  		 */
> -		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)
> -			dpb_valid |= BIT(HANTRO_H264_DPB_SIZE - 1 - i);
> -		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM)
> -			dpb_longterm |= BIT(HANTRO_H264_DPB_SIZE - 1 - i);
> +		if (dec_param->flags & V4L2_H264_DECODE_PARAM_FLAG_FIELD_PIC) {
> +			if (dpb[i].fields & V4L2_H264_TOP_FIELD_REF)
> +				dpb_valid |= REF_BIT(i * 2);
> +
> +			if (dpb[i].fields & V4L2_H264_BOTTOM_FIELD_REF)
> +				dpb_valid |= REF_BIT(i * 2 + 1);
> +
> +			if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM) {
> +				dpb_longterm |= REF_BIT(i * 2);
> +				dpb_longterm |= REF_BIT(i * 2 + 1);
> +			}
> +		} else {
> +			dpb_valid |= REF_BIT(i);
> +
> +			if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM)
> +				dpb_longterm |= REF_BIT(i);
> +		}
> +	}
> +	ctx->h264_dec.dpb_valid = dpb_valid;
> +	ctx->h264_dec.dpb_longterm = dpb_longterm;
> +
> +	if ((dec_param->flags & V4L2_H264_DECODE_PARAM_FLAG_FIELD_PIC) ||
> +	    !(sps->flags & V4L2_H264_SPS_FLAG_MB_ADAPTIVE_FRAME_FIELD)) {
> +		tbl->poc[32] = ctx->h264_dec.cur_poc;
> +		tbl->poc[33] = 0;
> +	} else {
> +		tbl->poc[32] = dec_param->top_field_order_cnt;
> +		tbl->poc[33] = dec_param->bottom_field_order_cnt;
>  	}
> -	ctx->h264_dec.dpb_valid = dpb_valid << 16;
> -	ctx->h264_dec.dpb_longterm = dpb_longterm << 16;
> -
> -	tbl->poc[32] = dec_param->top_field_order_cnt;
> -	tbl->poc[33] = dec_param->bottom_field_order_cnt;
>  
>  	assemble_scaling_list(ctx);
>  }
> @@ -326,6 +358,8 @@ dma_addr_t hantro_h264_get_ref_buf(struct hantro_ctx *ctx,
>  {
>  	struct v4l2_h264_dpb_entry *dpb = ctx->h264_dec.dpb;
>  	dma_addr_t dma_addr = 0;
> +	s32 cur_poc = ctx->h264_dec.cur_poc;
> +	u32 flags;
>  
>  	if (dpb[dpb_idx].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)
>  		dma_addr = hantro_get_ref(ctx, dpb[dpb_idx].reference_ts);
> @@ -343,7 +377,12 @@ dma_addr_t hantro_h264_get_ref_buf(struct hantro_ctx *ctx,
>  		dma_addr = hantro_get_dec_buf_addr(ctx, buf);
>  	}
>  
> -	return dma_addr;
> +	flags = dpb[dpb_idx].flags & V4L2_H264_DPB_ENTRY_FLAG_FIELD ? 0x2 : 0;
> +	flags |= abs(dpb[dpb_idx].top_field_order_cnt - cur_poc) <
> +		 abs(dpb[dpb_idx].bottom_field_order_cnt - cur_poc) ?
> +		 0x1 : 0;
> +
> +	return dma_addr | flags;
>  }
>  
>  u16 hantro_h264_get_ref_nbr(struct hantro_ctx *ctx, unsigned int dpb_idx)
> @@ -355,6 +394,47 @@ u16 hantro_h264_get_ref_nbr(struct hantro_ctx *ctx, unsigned int dpb_idx)
>  	return dpb->frame_num;
>  }
>  
> +/*
> + * Removes all references with he same parity as current picture from the
> + * reference list. The remaining list will have references with the opposite
> + * parity. This is effectively a deduplication of references since each buffer
> + * stores two fields. For this eason, each buffer are found twice in the
> + * reference list.
> + *
> + * This technique has been chosen through trial and error. This simple approach
> + * resulted in the highest conformance score. Note that this method may suffer
> + * worse quality in the case an opposite reference frame has been lost. If this
> + * becomes a problem in the future, it should be possible to add a preprocessing
> + * to identify un-paired fields and avoid removing them.
> + */
> +static void deduplicate_reflist(struct v4l2_h264_reflist_builder *b,
> +				struct v4l2_h264_reference *reflist)
> +{
> +	int write_idx = 0;
> +	int i;
> +
> +	if (b->cur_pic_fields == V4L2_H264_FRAME_REF) {
> +		write_idx = b->num_valid;
> +		goto done;
> +	}
> +
> +	for (i = 0; i < b->num_valid; i++) {
> +		if (!(b->cur_pic_fields == reflist[i].fields)) {
> +			reflist[write_idx++] = reflist[i];
> +			continue;
> +		}
> +	}
> +
> +done:
> +	/* Should not happen unless we have a bug in the reflist builder. */
> +	if (WARN_ON(write_idx > 16))
> +		write_idx = 16;
> +
> +	/* Clear the remaining, some streams fails otherwise */
> +	for (; write_idx < 16; write_idx++)
> +		reflist[write_idx].index = 15;
> +}
> +
>  int hantro_h264_dec_prepare_run(struct hantro_ctx *ctx)
>  {
>  	struct hantro_h264_dec_hw_ctx *h264_ctx = &ctx->h264_dec;
> @@ -386,15 +466,29 @@ int hantro_h264_dec_prepare_run(struct hantro_ctx *ctx)
>  	/* Update the DPB with new refs. */
>  	update_dpb(ctx);
>  
> -	/* Prepare data in memory. */
> -	prepare_table(ctx);
> -
>  	/* Build the P/B{0,1} ref lists. */
>  	v4l2_h264_init_reflist_builder(&reflist_builder, ctrls->decode,
>  				       ctrls->sps, ctx->h264_dec.dpb);
> +	h264_ctx->cur_poc = reflist_builder.cur_pic_order_count;
> +
> +	/* Prepare data in memory. */
> +	prepare_table(ctx);
> +
>  	v4l2_h264_build_p_ref_list(&reflist_builder, h264_ctx->reflists.p);
>  	v4l2_h264_build_b_ref_lists(&reflist_builder, h264_ctx->reflists.b0,
>  				    h264_ctx->reflists.b1);
> +
> +	/*
> +	 * Reduce ref lists to at most 16 entries, Hantro hardware will deduce
> +	 * the actual picture lists in field through the dpb_valid,
> +	 * dpb_longterm bitmap along with the current frame parity.
> +	 */
> +	if (reflist_builder.cur_pic_fields != V4L2_H264_FRAME_REF) {
> +		deduplicate_reflist(&reflist_builder, h264_ctx->reflists.p);
> +		deduplicate_reflist(&reflist_builder, h264_ctx->reflists.b0);
> +		deduplicate_reflist(&reflist_builder, h264_ctx->reflists.b1);
> +	}
> +
>  	return 0;
>  }
>  
> diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
> index 292aaaabaf24..fd869369fb97 100644
> --- a/drivers/staging/media/hantro/hantro_hw.h
> +++ b/drivers/staging/media/hantro/hantro_hw.h
> @@ -91,6 +91,7 @@ struct hantro_h264_dec_hw_ctx {
>  	struct hantro_h264_dec_ctrls ctrls;
>  	u32 dpb_longterm;
>  	u32 dpb_valid;
> +	s32 cur_poc;

This field isn't documented in kerneldoc.

I've added this:

+ * @cur_poc:   Current picture order count

Is that a correct description? If not, let me know what it should be.

I'll update the patch manually, no need to repost.

Regards,

	Hans

>  };
>  
>  /**


^ permalink raw reply	[flat|nested] 55+ messages in thread

* Re: [PATCH v4 23/24] media: hantro: Add H.264 field decoding support
@ 2022-04-28  8:50     ` Hans Verkuil
  0 siblings, 0 replies; 55+ messages in thread
From: Hans Verkuil @ 2022-04-28  8:50 UTC (permalink / raw)
  To: Nicolas Dufresne, Ezequiel Garcia, Philipp Zabel,
	Mauro Carvalho Chehab, Greg Kroah-Hartman
  Cc: nicolas, linux-media, Jonas Karlman, linux-rockchip,
	linux-staging, linux-kernel

On 26/04/2022 14:57, Nicolas Dufresne wrote:
> This adds the required code to support field decoding. While most of
> the code is derived from Rockchip and VSI reference code, the
> reduction of the reference list to 16 entries was found by
> trial and errors. The list consists of all the references with the
> opposite field parity.
> 
> The strategy is to deduplicate the reference picture that points
> to the same storage (same index). The choice of opposite parity has
> been made to keep the other field of the current field pair in the
> list. This method may not be robust if a field was lost.
> 
> Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
> Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
> ---
>  drivers/staging/media/hantro/hantro_h264.c | 122 ++++++++++++++++++---
>  drivers/staging/media/hantro/hantro_hw.h   |   1 +
>  2 files changed, 109 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/staging/media/hantro/hantro_h264.c b/drivers/staging/media/hantro/hantro_h264.c
> index 7377fc26f780..7502dddb324c 100644
> --- a/drivers/staging/media/hantro/hantro_h264.c
> +++ b/drivers/staging/media/hantro/hantro_h264.c
> @@ -22,6 +22,12 @@
>  #define POC_BUFFER_SIZE			34
>  #define SCALING_LIST_SIZE		(6 * 16 + 2 * 64)
>  
> +/*
> + * For valid and long term reference marking, index are reversed, so bit 31
> + * indicates the status of the picture 0.
> + */
> +#define REF_BIT(i)			BIT(32 - 1 - (i))
> +
>  /* Data structure describing auxiliary buffer format. */
>  struct hantro_h264_dec_priv_tbl {
>  	u32 cabac_table[CABAC_INIT_BUFFER_SIZE];
> @@ -227,6 +233,7 @@ static void prepare_table(struct hantro_ctx *ctx)
>  {
>  	const struct hantro_h264_dec_ctrls *ctrls = &ctx->h264_dec.ctrls;
>  	const struct v4l2_ctrl_h264_decode_params *dec_param = ctrls->decode;
> +	const struct v4l2_ctrl_h264_sps *sps = ctrls->sps;
>  	struct hantro_h264_dec_priv_tbl *tbl = ctx->h264_dec.priv.cpu;
>  	const struct v4l2_h264_dpb_entry *dpb = ctx->h264_dec.dpb;
>  	u32 dpb_longterm = 0;
> @@ -237,20 +244,45 @@ static void prepare_table(struct hantro_ctx *ctx)
>  		tbl->poc[i * 2] = dpb[i].top_field_order_cnt;
>  		tbl->poc[i * 2 + 1] = dpb[i].bottom_field_order_cnt;
>  
> +		if (!(dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_VALID))
> +			continue;
> +
>  		/*
>  		 * Set up bit maps of valid and long term DPBs.
> -		 * NOTE: The bits are reversed, i.e. MSb is DPB 0.
> +		 * NOTE: The bits are reversed, i.e. MSb is DPB 0. For frame
> +		 * decoding, bit 31 to 15 are used, while for field decoding,
> +		 * all bits are used, with bit 31 being a top field, 30 a bottom
> +		 * field and so on.
>  		 */
> -		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)
> -			dpb_valid |= BIT(HANTRO_H264_DPB_SIZE - 1 - i);
> -		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM)
> -			dpb_longterm |= BIT(HANTRO_H264_DPB_SIZE - 1 - i);
> +		if (dec_param->flags & V4L2_H264_DECODE_PARAM_FLAG_FIELD_PIC) {
> +			if (dpb[i].fields & V4L2_H264_TOP_FIELD_REF)
> +				dpb_valid |= REF_BIT(i * 2);
> +
> +			if (dpb[i].fields & V4L2_H264_BOTTOM_FIELD_REF)
> +				dpb_valid |= REF_BIT(i * 2 + 1);
> +
> +			if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM) {
> +				dpb_longterm |= REF_BIT(i * 2);
> +				dpb_longterm |= REF_BIT(i * 2 + 1);
> +			}
> +		} else {
> +			dpb_valid |= REF_BIT(i);
> +
> +			if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM)
> +				dpb_longterm |= REF_BIT(i);
> +		}
> +	}
> +	ctx->h264_dec.dpb_valid = dpb_valid;
> +	ctx->h264_dec.dpb_longterm = dpb_longterm;
> +
> +	if ((dec_param->flags & V4L2_H264_DECODE_PARAM_FLAG_FIELD_PIC) ||
> +	    !(sps->flags & V4L2_H264_SPS_FLAG_MB_ADAPTIVE_FRAME_FIELD)) {
> +		tbl->poc[32] = ctx->h264_dec.cur_poc;
> +		tbl->poc[33] = 0;
> +	} else {
> +		tbl->poc[32] = dec_param->top_field_order_cnt;
> +		tbl->poc[33] = dec_param->bottom_field_order_cnt;
>  	}
> -	ctx->h264_dec.dpb_valid = dpb_valid << 16;
> -	ctx->h264_dec.dpb_longterm = dpb_longterm << 16;
> -
> -	tbl->poc[32] = dec_param->top_field_order_cnt;
> -	tbl->poc[33] = dec_param->bottom_field_order_cnt;
>  
>  	assemble_scaling_list(ctx);
>  }
> @@ -326,6 +358,8 @@ dma_addr_t hantro_h264_get_ref_buf(struct hantro_ctx *ctx,
>  {
>  	struct v4l2_h264_dpb_entry *dpb = ctx->h264_dec.dpb;
>  	dma_addr_t dma_addr = 0;
> +	s32 cur_poc = ctx->h264_dec.cur_poc;
> +	u32 flags;
>  
>  	if (dpb[dpb_idx].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)
>  		dma_addr = hantro_get_ref(ctx, dpb[dpb_idx].reference_ts);
> @@ -343,7 +377,12 @@ dma_addr_t hantro_h264_get_ref_buf(struct hantro_ctx *ctx,
>  		dma_addr = hantro_get_dec_buf_addr(ctx, buf);
>  	}
>  
> -	return dma_addr;
> +	flags = dpb[dpb_idx].flags & V4L2_H264_DPB_ENTRY_FLAG_FIELD ? 0x2 : 0;
> +	flags |= abs(dpb[dpb_idx].top_field_order_cnt - cur_poc) <
> +		 abs(dpb[dpb_idx].bottom_field_order_cnt - cur_poc) ?
> +		 0x1 : 0;
> +
> +	return dma_addr | flags;
>  }
>  
>  u16 hantro_h264_get_ref_nbr(struct hantro_ctx *ctx, unsigned int dpb_idx)
> @@ -355,6 +394,47 @@ u16 hantro_h264_get_ref_nbr(struct hantro_ctx *ctx, unsigned int dpb_idx)
>  	return dpb->frame_num;
>  }
>  
> +/*
> + * Removes all references with he same parity as current picture from the
> + * reference list. The remaining list will have references with the opposite
> + * parity. This is effectively a deduplication of references since each buffer
> + * stores two fields. For this eason, each buffer are found twice in the
> + * reference list.
> + *
> + * This technique has been chosen through trial and error. This simple approach
> + * resulted in the highest conformance score. Note that this method may suffer
> + * worse quality in the case an opposite reference frame has been lost. If this
> + * becomes a problem in the future, it should be possible to add a preprocessing
> + * to identify un-paired fields and avoid removing them.
> + */
> +static void deduplicate_reflist(struct v4l2_h264_reflist_builder *b,
> +				struct v4l2_h264_reference *reflist)
> +{
> +	int write_idx = 0;
> +	int i;
> +
> +	if (b->cur_pic_fields == V4L2_H264_FRAME_REF) {
> +		write_idx = b->num_valid;
> +		goto done;
> +	}
> +
> +	for (i = 0; i < b->num_valid; i++) {
> +		if (!(b->cur_pic_fields == reflist[i].fields)) {
> +			reflist[write_idx++] = reflist[i];
> +			continue;
> +		}
> +	}
> +
> +done:
> +	/* Should not happen unless we have a bug in the reflist builder. */
> +	if (WARN_ON(write_idx > 16))
> +		write_idx = 16;
> +
> +	/* Clear the remaining, some streams fails otherwise */
> +	for (; write_idx < 16; write_idx++)
> +		reflist[write_idx].index = 15;
> +}
> +
>  int hantro_h264_dec_prepare_run(struct hantro_ctx *ctx)
>  {
>  	struct hantro_h264_dec_hw_ctx *h264_ctx = &ctx->h264_dec;
> @@ -386,15 +466,29 @@ int hantro_h264_dec_prepare_run(struct hantro_ctx *ctx)
>  	/* Update the DPB with new refs. */
>  	update_dpb(ctx);
>  
> -	/* Prepare data in memory. */
> -	prepare_table(ctx);
> -
>  	/* Build the P/B{0,1} ref lists. */
>  	v4l2_h264_init_reflist_builder(&reflist_builder, ctrls->decode,
>  				       ctrls->sps, ctx->h264_dec.dpb);
> +	h264_ctx->cur_poc = reflist_builder.cur_pic_order_count;
> +
> +	/* Prepare data in memory. */
> +	prepare_table(ctx);
> +
>  	v4l2_h264_build_p_ref_list(&reflist_builder, h264_ctx->reflists.p);
>  	v4l2_h264_build_b_ref_lists(&reflist_builder, h264_ctx->reflists.b0,
>  				    h264_ctx->reflists.b1);
> +
> +	/*
> +	 * Reduce ref lists to at most 16 entries, Hantro hardware will deduce
> +	 * the actual picture lists in field through the dpb_valid,
> +	 * dpb_longterm bitmap along with the current frame parity.
> +	 */
> +	if (reflist_builder.cur_pic_fields != V4L2_H264_FRAME_REF) {
> +		deduplicate_reflist(&reflist_builder, h264_ctx->reflists.p);
> +		deduplicate_reflist(&reflist_builder, h264_ctx->reflists.b0);
> +		deduplicate_reflist(&reflist_builder, h264_ctx->reflists.b1);
> +	}
> +
>  	return 0;
>  }
>  
> diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
> index 292aaaabaf24..fd869369fb97 100644
> --- a/drivers/staging/media/hantro/hantro_hw.h
> +++ b/drivers/staging/media/hantro/hantro_hw.h
> @@ -91,6 +91,7 @@ struct hantro_h264_dec_hw_ctx {
>  	struct hantro_h264_dec_ctrls ctrls;
>  	u32 dpb_longterm;
>  	u32 dpb_valid;
> +	s32 cur_poc;

This field isn't documented in kerneldoc.

I've added this:

+ * @cur_poc:   Current picture order count

Is that a correct description? If not, let me know what it should be.

I'll update the patch manually, no need to repost.

Regards,

	Hans

>  };
>  
>  /**


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

^ permalink raw reply	[flat|nested] 55+ messages in thread

* Re: [PATCH v4 03/24] media: videobuf2-v4l2: Warn on holding buffers without support
  2022-04-28  6:12       ` Hans Verkuil
@ 2022-04-28 13:09         ` Nicolas Dufresne
  2022-11-24  8:57           ` Hans Verkuil
  0 siblings, 1 reply; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-28 13:09 UTC (permalink / raw)
  To: Hans Verkuil, Tomasz Figa, Marek Szyprowski, Mauro Carvalho Chehab
  Cc: Sebastian Fricke, linux-media, Ezequiel Garcia, linux-kernel

Le jeudi 28 avril 2022 à 08:12 +0200, Hans Verkuil a écrit :
> On 27/04/2022 17:08, Nicolas Dufresne wrote:
> > Le mercredi 27 avril 2022 à 13:31 +0900, Tomasz Figa a écrit :
> > > Hi Nicolas, Sebastian,
> > > 
> > > On Tue, Apr 26, 2022 at 9:58 PM Nicolas Dufresne
> > > <nicolas.dufresne@collabora.com> wrote:
> > > > 
> > > > From: Sebastian Fricke <sebastian.fricke@collabora.com>
> > > > 
> > > > Using V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF flag without specifying the
> > > > subsystem flag VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF, results in
> > > > silently ignoring it.
> > > > Warn the user via a debug print when the flag is requested but ignored
> > > > by the videobuf2 framework.
> > > > 
> > > > Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
> > > > Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
> > > > Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
> > > > ---
> > > >  drivers/media/common/videobuf2/videobuf2-v4l2.c | 7 ++++++-
> > > >  1 file changed, 6 insertions(+), 1 deletion(-)
> > > > 
> > > 
> > > Thanks for the patch. Please see my comments inline.
> > > 
> > > > diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
> > > > index 6edf4508c636..812c8d1962e0 100644
> > > > --- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
> > > > +++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
> > > > @@ -329,8 +329,13 @@ static int vb2_fill_vb2_v4l2_buffer(struct vb2_buffer *vb, struct v4l2_buffer *b
> > > >                  */
> > > >                 vbuf->flags &= ~V4L2_BUF_FLAG_TIMECODE;
> > > >                 vbuf->field = b->field;
> > > > -               if (!(q->subsystem_flags & VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF))
> > > > +               if (!(q->subsystem_flags & VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF)) {
> > > > +                       if (vbuf->flags & V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF)
> > > > +                               dprintk(q, 1,
> > > > +                                       "Request holding buffer (%d), unsupported on output queue\n",
> > > > +                                       b->index);
> > > 
> > > I wonder if we shouldn't just fail such a QBUF operation. Otherwise
> > > the application would get unexpected behavior from the kernel.
> > > Although it might be too late to do it now if there are applications
> > > that rely on this implicit ignore...
> > 
> > In the context of this patchset, the statu quo seems to be the logical thing to
> > do. We can raise this up in a separate thread. The side effect is of course
> > confusing for developers, but it is hard for me to tell if a hard failure may
> > break an existing software.
> 
> I am leaning towards returning an error as well. It makes no sense to try
> to hold on to a buffer when this is not supported.
> 
> I also thought that it should be enough to rely on the core to clear the
> flag upon return if it isn't supported, but looking through the vb2 core code
> it looks like we're not clearing unknown flags at all, so running this for
> older kernels that do not support holding at all will not clear the flag
> either.
> 
> The handling for flags in vb2 can be improved, I think I'll take a look at
> that myself.
> 
> I plan to merge this series soon, but will skip this patch for now.

Ok, no problem. For me, as long as we do something about it, since it was not
obvious and time consuming to debug.

regards,
Nicolas

> 
> Regards,
> 
> 	Hans
> 
> > 
> > regards,
> > Nicolas
> > 
> > > 
> > > Best regards,
> > > Tomasz
> > 
> 


^ permalink raw reply	[flat|nested] 55+ messages in thread

* Re: [PATCH v4 23/24] media: hantro: Add H.264 field decoding support
  2022-04-28  8:50     ` Hans Verkuil
@ 2022-04-28 13:10       ` Nicolas Dufresne
  -1 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-28 13:10 UTC (permalink / raw)
  To: Hans Verkuil, Ezequiel Garcia, Philipp Zabel,
	Mauro Carvalho Chehab, Greg Kroah-Hartman
  Cc: linux-media, Jonas Karlman, linux-rockchip, linux-staging, linux-kernel

Le jeudi 28 avril 2022 à 10:50 +0200, Hans Verkuil a écrit :
> On 26/04/2022 14:57, Nicolas Dufresne wrote:
> > This adds the required code to support field decoding. While most of
> > the code is derived from Rockchip and VSI reference code, the
> > reduction of the reference list to 16 entries was found by
> > trial and errors. The list consists of all the references with the
> > opposite field parity.
> > 
> > The strategy is to deduplicate the reference picture that points
> > to the same storage (same index). The choice of opposite parity has
> > been made to keep the other field of the current field pair in the
> > list. This method may not be robust if a field was lost.
> > 
> > Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
> > Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
> > ---
> >  drivers/staging/media/hantro/hantro_h264.c | 122 ++++++++++++++++++---
> >  drivers/staging/media/hantro/hantro_hw.h   |   1 +
> >  2 files changed, 109 insertions(+), 14 deletions(-)
> > 
> > diff --git a/drivers/staging/media/hantro/hantro_h264.c b/drivers/staging/media/hantro/hantro_h264.c
> > index 7377fc26f780..7502dddb324c 100644
> > --- a/drivers/staging/media/hantro/hantro_h264.c
> > +++ b/drivers/staging/media/hantro/hantro_h264.c
> > @@ -22,6 +22,12 @@
> >  #define POC_BUFFER_SIZE			34
> >  #define SCALING_LIST_SIZE		(6 * 16 + 2 * 64)
> >  
> > +/*
> > + * For valid and long term reference marking, index are reversed, so bit 31
> > + * indicates the status of the picture 0.
> > + */
> > +#define REF_BIT(i)			BIT(32 - 1 - (i))
> > +
> >  /* Data structure describing auxiliary buffer format. */
> >  struct hantro_h264_dec_priv_tbl {
> >  	u32 cabac_table[CABAC_INIT_BUFFER_SIZE];
> > @@ -227,6 +233,7 @@ static void prepare_table(struct hantro_ctx *ctx)
> >  {
> >  	const struct hantro_h264_dec_ctrls *ctrls = &ctx->h264_dec.ctrls;
> >  	const struct v4l2_ctrl_h264_decode_params *dec_param = ctrls->decode;
> > +	const struct v4l2_ctrl_h264_sps *sps = ctrls->sps;
> >  	struct hantro_h264_dec_priv_tbl *tbl = ctx->h264_dec.priv.cpu;
> >  	const struct v4l2_h264_dpb_entry *dpb = ctx->h264_dec.dpb;
> >  	u32 dpb_longterm = 0;
> > @@ -237,20 +244,45 @@ static void prepare_table(struct hantro_ctx *ctx)
> >  		tbl->poc[i * 2] = dpb[i].top_field_order_cnt;
> >  		tbl->poc[i * 2 + 1] = dpb[i].bottom_field_order_cnt;
> >  
> > +		if (!(dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_VALID))
> > +			continue;
> > +
> >  		/*
> >  		 * Set up bit maps of valid and long term DPBs.
> > -		 * NOTE: The bits are reversed, i.e. MSb is DPB 0.
> > +		 * NOTE: The bits are reversed, i.e. MSb is DPB 0. For frame
> > +		 * decoding, bit 31 to 15 are used, while for field decoding,
> > +		 * all bits are used, with bit 31 being a top field, 30 a bottom
> > +		 * field and so on.
> >  		 */
> > -		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)
> > -			dpb_valid |= BIT(HANTRO_H264_DPB_SIZE - 1 - i);
> > -		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM)
> > -			dpb_longterm |= BIT(HANTRO_H264_DPB_SIZE - 1 - i);
> > +		if (dec_param->flags & V4L2_H264_DECODE_PARAM_FLAG_FIELD_PIC) {
> > +			if (dpb[i].fields & V4L2_H264_TOP_FIELD_REF)
> > +				dpb_valid |= REF_BIT(i * 2);
> > +
> > +			if (dpb[i].fields & V4L2_H264_BOTTOM_FIELD_REF)
> > +				dpb_valid |= REF_BIT(i * 2 + 1);
> > +
> > +			if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM) {
> > +				dpb_longterm |= REF_BIT(i * 2);
> > +				dpb_longterm |= REF_BIT(i * 2 + 1);
> > +			}
> > +		} else {
> > +			dpb_valid |= REF_BIT(i);
> > +
> > +			if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM)
> > +				dpb_longterm |= REF_BIT(i);
> > +		}
> > +	}
> > +	ctx->h264_dec.dpb_valid = dpb_valid;
> > +	ctx->h264_dec.dpb_longterm = dpb_longterm;
> > +
> > +	if ((dec_param->flags & V4L2_H264_DECODE_PARAM_FLAG_FIELD_PIC) ||
> > +	    !(sps->flags & V4L2_H264_SPS_FLAG_MB_ADAPTIVE_FRAME_FIELD)) {
> > +		tbl->poc[32] = ctx->h264_dec.cur_poc;
> > +		tbl->poc[33] = 0;
> > +	} else {
> > +		tbl->poc[32] = dec_param->top_field_order_cnt;
> > +		tbl->poc[33] = dec_param->bottom_field_order_cnt;
> >  	}
> > -	ctx->h264_dec.dpb_valid = dpb_valid << 16;
> > -	ctx->h264_dec.dpb_longterm = dpb_longterm << 16;
> > -
> > -	tbl->poc[32] = dec_param->top_field_order_cnt;
> > -	tbl->poc[33] = dec_param->bottom_field_order_cnt;
> >  
> >  	assemble_scaling_list(ctx);
> >  }
> > @@ -326,6 +358,8 @@ dma_addr_t hantro_h264_get_ref_buf(struct hantro_ctx *ctx,
> >  {
> >  	struct v4l2_h264_dpb_entry *dpb = ctx->h264_dec.dpb;
> >  	dma_addr_t dma_addr = 0;
> > +	s32 cur_poc = ctx->h264_dec.cur_poc;
> > +	u32 flags;
> >  
> >  	if (dpb[dpb_idx].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)
> >  		dma_addr = hantro_get_ref(ctx, dpb[dpb_idx].reference_ts);
> > @@ -343,7 +377,12 @@ dma_addr_t hantro_h264_get_ref_buf(struct hantro_ctx *ctx,
> >  		dma_addr = hantro_get_dec_buf_addr(ctx, buf);
> >  	}
> >  
> > -	return dma_addr;
> > +	flags = dpb[dpb_idx].flags & V4L2_H264_DPB_ENTRY_FLAG_FIELD ? 0x2 : 0;
> > +	flags |= abs(dpb[dpb_idx].top_field_order_cnt - cur_poc) <
> > +		 abs(dpb[dpb_idx].bottom_field_order_cnt - cur_poc) ?
> > +		 0x1 : 0;
> > +
> > +	return dma_addr | flags;
> >  }
> >  
> >  u16 hantro_h264_get_ref_nbr(struct hantro_ctx *ctx, unsigned int dpb_idx)
> > @@ -355,6 +394,47 @@ u16 hantro_h264_get_ref_nbr(struct hantro_ctx *ctx, unsigned int dpb_idx)
> >  	return dpb->frame_num;
> >  }
> >  
> > +/*
> > + * Removes all references with he same parity as current picture from the
> > + * reference list. The remaining list will have references with the opposite
> > + * parity. This is effectively a deduplication of references since each buffer
> > + * stores two fields. For this eason, each buffer are found twice in the
> > + * reference list.
> > + *
> > + * This technique has been chosen through trial and error. This simple approach
> > + * resulted in the highest conformance score. Note that this method may suffer
> > + * worse quality in the case an opposite reference frame has been lost. If this
> > + * becomes a problem in the future, it should be possible to add a preprocessing
> > + * to identify un-paired fields and avoid removing them.
> > + */
> > +static void deduplicate_reflist(struct v4l2_h264_reflist_builder *b,
> > +				struct v4l2_h264_reference *reflist)
> > +{
> > +	int write_idx = 0;
> > +	int i;
> > +
> > +	if (b->cur_pic_fields == V4L2_H264_FRAME_REF) {
> > +		write_idx = b->num_valid;
> > +		goto done;
> > +	}
> > +
> > +	for (i = 0; i < b->num_valid; i++) {
> > +		if (!(b->cur_pic_fields == reflist[i].fields)) {
> > +			reflist[write_idx++] = reflist[i];
> > +			continue;
> > +		}
> > +	}
> > +
> > +done:
> > +	/* Should not happen unless we have a bug in the reflist builder. */
> > +	if (WARN_ON(write_idx > 16))
> > +		write_idx = 16;
> > +
> > +	/* Clear the remaining, some streams fails otherwise */
> > +	for (; write_idx < 16; write_idx++)
> > +		reflist[write_idx].index = 15;
> > +}
> > +
> >  int hantro_h264_dec_prepare_run(struct hantro_ctx *ctx)
> >  {
> >  	struct hantro_h264_dec_hw_ctx *h264_ctx = &ctx->h264_dec;
> > @@ -386,15 +466,29 @@ int hantro_h264_dec_prepare_run(struct hantro_ctx *ctx)
> >  	/* Update the DPB with new refs. */
> >  	update_dpb(ctx);
> >  
> > -	/* Prepare data in memory. */
> > -	prepare_table(ctx);
> > -
> >  	/* Build the P/B{0,1} ref lists. */
> >  	v4l2_h264_init_reflist_builder(&reflist_builder, ctrls->decode,
> >  				       ctrls->sps, ctx->h264_dec.dpb);
> > +	h264_ctx->cur_poc = reflist_builder.cur_pic_order_count;
> > +
> > +	/* Prepare data in memory. */
> > +	prepare_table(ctx);
> > +
> >  	v4l2_h264_build_p_ref_list(&reflist_builder, h264_ctx->reflists.p);
> >  	v4l2_h264_build_b_ref_lists(&reflist_builder, h264_ctx->reflists.b0,
> >  				    h264_ctx->reflists.b1);
> > +
> > +	/*
> > +	 * Reduce ref lists to at most 16 entries, Hantro hardware will deduce
> > +	 * the actual picture lists in field through the dpb_valid,
> > +	 * dpb_longterm bitmap along with the current frame parity.
> > +	 */
> > +	if (reflist_builder.cur_pic_fields != V4L2_H264_FRAME_REF) {
> > +		deduplicate_reflist(&reflist_builder, h264_ctx->reflists.p);
> > +		deduplicate_reflist(&reflist_builder, h264_ctx->reflists.b0);
> > +		deduplicate_reflist(&reflist_builder, h264_ctx->reflists.b1);
> > +	}
> > +
> >  	return 0;
> >  }
> >  
> > diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
> > index 292aaaabaf24..fd869369fb97 100644
> > --- a/drivers/staging/media/hantro/hantro_hw.h
> > +++ b/drivers/staging/media/hantro/hantro_hw.h
> > @@ -91,6 +91,7 @@ struct hantro_h264_dec_hw_ctx {
> >  	struct hantro_h264_dec_ctrls ctrls;
> >  	u32 dpb_longterm;
> >  	u32 dpb_valid;
> > +	s32 cur_poc;
> 
> This field isn't documented in kerneldoc.
> 
> I've added this:
> 
> + * @cur_poc:   Current picture order count
> 
> Is that a correct description? If not, let me know what it should be.
> 
> I'll update the patch manually, no need to repost.

Yes, this is entirely correct, thanks for catching this.

> 
> Regards,
> 
> 	Hans
> 
> >  };
> >  
> >  /**
> 


^ permalink raw reply	[flat|nested] 55+ messages in thread

* Re: [PATCH v4 23/24] media: hantro: Add H.264 field decoding support
@ 2022-04-28 13:10       ` Nicolas Dufresne
  0 siblings, 0 replies; 55+ messages in thread
From: Nicolas Dufresne @ 2022-04-28 13:10 UTC (permalink / raw)
  To: Hans Verkuil, Ezequiel Garcia, Philipp Zabel,
	Mauro Carvalho Chehab, Greg Kroah-Hartman
  Cc: linux-media, Jonas Karlman, linux-rockchip, linux-staging, linux-kernel

Le jeudi 28 avril 2022 à 10:50 +0200, Hans Verkuil a écrit :
> On 26/04/2022 14:57, Nicolas Dufresne wrote:
> > This adds the required code to support field decoding. While most of
> > the code is derived from Rockchip and VSI reference code, the
> > reduction of the reference list to 16 entries was found by
> > trial and errors. The list consists of all the references with the
> > opposite field parity.
> > 
> > The strategy is to deduplicate the reference picture that points
> > to the same storage (same index). The choice of opposite parity has
> > been made to keep the other field of the current field pair in the
> > list. This method may not be robust if a field was lost.
> > 
> > Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
> > Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
> > ---
> >  drivers/staging/media/hantro/hantro_h264.c | 122 ++++++++++++++++++---
> >  drivers/staging/media/hantro/hantro_hw.h   |   1 +
> >  2 files changed, 109 insertions(+), 14 deletions(-)
> > 
> > diff --git a/drivers/staging/media/hantro/hantro_h264.c b/drivers/staging/media/hantro/hantro_h264.c
> > index 7377fc26f780..7502dddb324c 100644
> > --- a/drivers/staging/media/hantro/hantro_h264.c
> > +++ b/drivers/staging/media/hantro/hantro_h264.c
> > @@ -22,6 +22,12 @@
> >  #define POC_BUFFER_SIZE			34
> >  #define SCALING_LIST_SIZE		(6 * 16 + 2 * 64)
> >  
> > +/*
> > + * For valid and long term reference marking, index are reversed, so bit 31
> > + * indicates the status of the picture 0.
> > + */
> > +#define REF_BIT(i)			BIT(32 - 1 - (i))
> > +
> >  /* Data structure describing auxiliary buffer format. */
> >  struct hantro_h264_dec_priv_tbl {
> >  	u32 cabac_table[CABAC_INIT_BUFFER_SIZE];
> > @@ -227,6 +233,7 @@ static void prepare_table(struct hantro_ctx *ctx)
> >  {
> >  	const struct hantro_h264_dec_ctrls *ctrls = &ctx->h264_dec.ctrls;
> >  	const struct v4l2_ctrl_h264_decode_params *dec_param = ctrls->decode;
> > +	const struct v4l2_ctrl_h264_sps *sps = ctrls->sps;
> >  	struct hantro_h264_dec_priv_tbl *tbl = ctx->h264_dec.priv.cpu;
> >  	const struct v4l2_h264_dpb_entry *dpb = ctx->h264_dec.dpb;
> >  	u32 dpb_longterm = 0;
> > @@ -237,20 +244,45 @@ static void prepare_table(struct hantro_ctx *ctx)
> >  		tbl->poc[i * 2] = dpb[i].top_field_order_cnt;
> >  		tbl->poc[i * 2 + 1] = dpb[i].bottom_field_order_cnt;
> >  
> > +		if (!(dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_VALID))
> > +			continue;
> > +
> >  		/*
> >  		 * Set up bit maps of valid and long term DPBs.
> > -		 * NOTE: The bits are reversed, i.e. MSb is DPB 0.
> > +		 * NOTE: The bits are reversed, i.e. MSb is DPB 0. For frame
> > +		 * decoding, bit 31 to 15 are used, while for field decoding,
> > +		 * all bits are used, with bit 31 being a top field, 30 a bottom
> > +		 * field and so on.
> >  		 */
> > -		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)
> > -			dpb_valid |= BIT(HANTRO_H264_DPB_SIZE - 1 - i);
> > -		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM)
> > -			dpb_longterm |= BIT(HANTRO_H264_DPB_SIZE - 1 - i);
> > +		if (dec_param->flags & V4L2_H264_DECODE_PARAM_FLAG_FIELD_PIC) {
> > +			if (dpb[i].fields & V4L2_H264_TOP_FIELD_REF)
> > +				dpb_valid |= REF_BIT(i * 2);
> > +
> > +			if (dpb[i].fields & V4L2_H264_BOTTOM_FIELD_REF)
> > +				dpb_valid |= REF_BIT(i * 2 + 1);
> > +
> > +			if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM) {
> > +				dpb_longterm |= REF_BIT(i * 2);
> > +				dpb_longterm |= REF_BIT(i * 2 + 1);
> > +			}
> > +		} else {
> > +			dpb_valid |= REF_BIT(i);
> > +
> > +			if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM)
> > +				dpb_longterm |= REF_BIT(i);
> > +		}
> > +	}
> > +	ctx->h264_dec.dpb_valid = dpb_valid;
> > +	ctx->h264_dec.dpb_longterm = dpb_longterm;
> > +
> > +	if ((dec_param->flags & V4L2_H264_DECODE_PARAM_FLAG_FIELD_PIC) ||
> > +	    !(sps->flags & V4L2_H264_SPS_FLAG_MB_ADAPTIVE_FRAME_FIELD)) {
> > +		tbl->poc[32] = ctx->h264_dec.cur_poc;
> > +		tbl->poc[33] = 0;
> > +	} else {
> > +		tbl->poc[32] = dec_param->top_field_order_cnt;
> > +		tbl->poc[33] = dec_param->bottom_field_order_cnt;
> >  	}
> > -	ctx->h264_dec.dpb_valid = dpb_valid << 16;
> > -	ctx->h264_dec.dpb_longterm = dpb_longterm << 16;
> > -
> > -	tbl->poc[32] = dec_param->top_field_order_cnt;
> > -	tbl->poc[33] = dec_param->bottom_field_order_cnt;
> >  
> >  	assemble_scaling_list(ctx);
> >  }
> > @@ -326,6 +358,8 @@ dma_addr_t hantro_h264_get_ref_buf(struct hantro_ctx *ctx,
> >  {
> >  	struct v4l2_h264_dpb_entry *dpb = ctx->h264_dec.dpb;
> >  	dma_addr_t dma_addr = 0;
> > +	s32 cur_poc = ctx->h264_dec.cur_poc;
> > +	u32 flags;
> >  
> >  	if (dpb[dpb_idx].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)
> >  		dma_addr = hantro_get_ref(ctx, dpb[dpb_idx].reference_ts);
> > @@ -343,7 +377,12 @@ dma_addr_t hantro_h264_get_ref_buf(struct hantro_ctx *ctx,
> >  		dma_addr = hantro_get_dec_buf_addr(ctx, buf);
> >  	}
> >  
> > -	return dma_addr;
> > +	flags = dpb[dpb_idx].flags & V4L2_H264_DPB_ENTRY_FLAG_FIELD ? 0x2 : 0;
> > +	flags |= abs(dpb[dpb_idx].top_field_order_cnt - cur_poc) <
> > +		 abs(dpb[dpb_idx].bottom_field_order_cnt - cur_poc) ?
> > +		 0x1 : 0;
> > +
> > +	return dma_addr | flags;
> >  }
> >  
> >  u16 hantro_h264_get_ref_nbr(struct hantro_ctx *ctx, unsigned int dpb_idx)
> > @@ -355,6 +394,47 @@ u16 hantro_h264_get_ref_nbr(struct hantro_ctx *ctx, unsigned int dpb_idx)
> >  	return dpb->frame_num;
> >  }
> >  
> > +/*
> > + * Removes all references with he same parity as current picture from the
> > + * reference list. The remaining list will have references with the opposite
> > + * parity. This is effectively a deduplication of references since each buffer
> > + * stores two fields. For this eason, each buffer are found twice in the
> > + * reference list.
> > + *
> > + * This technique has been chosen through trial and error. This simple approach
> > + * resulted in the highest conformance score. Note that this method may suffer
> > + * worse quality in the case an opposite reference frame has been lost. If this
> > + * becomes a problem in the future, it should be possible to add a preprocessing
> > + * to identify un-paired fields and avoid removing them.
> > + */
> > +static void deduplicate_reflist(struct v4l2_h264_reflist_builder *b,
> > +				struct v4l2_h264_reference *reflist)
> > +{
> > +	int write_idx = 0;
> > +	int i;
> > +
> > +	if (b->cur_pic_fields == V4L2_H264_FRAME_REF) {
> > +		write_idx = b->num_valid;
> > +		goto done;
> > +	}
> > +
> > +	for (i = 0; i < b->num_valid; i++) {
> > +		if (!(b->cur_pic_fields == reflist[i].fields)) {
> > +			reflist[write_idx++] = reflist[i];
> > +			continue;
> > +		}
> > +	}
> > +
> > +done:
> > +	/* Should not happen unless we have a bug in the reflist builder. */
> > +	if (WARN_ON(write_idx > 16))
> > +		write_idx = 16;
> > +
> > +	/* Clear the remaining, some streams fails otherwise */
> > +	for (; write_idx < 16; write_idx++)
> > +		reflist[write_idx].index = 15;
> > +}
> > +
> >  int hantro_h264_dec_prepare_run(struct hantro_ctx *ctx)
> >  {
> >  	struct hantro_h264_dec_hw_ctx *h264_ctx = &ctx->h264_dec;
> > @@ -386,15 +466,29 @@ int hantro_h264_dec_prepare_run(struct hantro_ctx *ctx)
> >  	/* Update the DPB with new refs. */
> >  	update_dpb(ctx);
> >  
> > -	/* Prepare data in memory. */
> > -	prepare_table(ctx);
> > -
> >  	/* Build the P/B{0,1} ref lists. */
> >  	v4l2_h264_init_reflist_builder(&reflist_builder, ctrls->decode,
> >  				       ctrls->sps, ctx->h264_dec.dpb);
> > +	h264_ctx->cur_poc = reflist_builder.cur_pic_order_count;
> > +
> > +	/* Prepare data in memory. */
> > +	prepare_table(ctx);
> > +
> >  	v4l2_h264_build_p_ref_list(&reflist_builder, h264_ctx->reflists.p);
> >  	v4l2_h264_build_b_ref_lists(&reflist_builder, h264_ctx->reflists.b0,
> >  				    h264_ctx->reflists.b1);
> > +
> > +	/*
> > +	 * Reduce ref lists to at most 16 entries, Hantro hardware will deduce
> > +	 * the actual picture lists in field through the dpb_valid,
> > +	 * dpb_longterm bitmap along with the current frame parity.
> > +	 */
> > +	if (reflist_builder.cur_pic_fields != V4L2_H264_FRAME_REF) {
> > +		deduplicate_reflist(&reflist_builder, h264_ctx->reflists.p);
> > +		deduplicate_reflist(&reflist_builder, h264_ctx->reflists.b0);
> > +		deduplicate_reflist(&reflist_builder, h264_ctx->reflists.b1);
> > +	}
> > +
> >  	return 0;
> >  }
> >  
> > diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
> > index 292aaaabaf24..fd869369fb97 100644
> > --- a/drivers/staging/media/hantro/hantro_hw.h
> > +++ b/drivers/staging/media/hantro/hantro_hw.h
> > @@ -91,6 +91,7 @@ struct hantro_h264_dec_hw_ctx {
> >  	struct hantro_h264_dec_ctrls ctrls;
> >  	u32 dpb_longterm;
> >  	u32 dpb_valid;
> > +	s32 cur_poc;
> 
> This field isn't documented in kerneldoc.
> 
> I've added this:
> 
> + * @cur_poc:   Current picture order count
> 
> Is that a correct description? If not, let me know what it should be.
> 
> I'll update the patch manually, no need to repost.

Yes, this is entirely correct, thanks for catching this.

> 
> Regards,
> 
> 	Hans
> 
> >  };
> >  
> >  /**
> 


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^ permalink raw reply	[flat|nested] 55+ messages in thread

* Re: [PATCH v4 05/24] media: h264: Use v4l2_h264_reference for reflist
  2022-04-26 12:57   ` Nicolas Dufresne
  (?)
  (?)
@ 2022-05-05  0:42     ` Dmitry Osipenko
  -1 siblings, 0 replies; 55+ messages in thread
From: Dmitry Osipenko @ 2022-05-05  0:42 UTC (permalink / raw)
  To: Nicolas Dufresne, Tiffany Lin, Andrew-CT Chen,
	Mauro Carvalho Chehab, Dmitry Osipenko, Thierry Reding,
	Jonathan Hunter, Ezequiel Garcia, Philipp Zabel,
	Greg Kroah-Hartman, Heiko Stuebner, Matthias Brugger
  Cc: nicolas, linux-media, linux-kernel, linux-tegra, linux-rockchip,
	linux-staging, linux-arm-kernel, linux-mediatek

On 4/26/22 15:57, Nicolas Dufresne wrote:
>  static int tegra_vde_wait_mbe(struct tegra_vde *vde)
> @@ -768,7 +768,7 @@ static int tegra_vde_h264_setup_frames(struct tegra_ctx *ctx,
>  	struct h264_reflists reflists;
>  	struct vb2_buffer *ref;
>  	unsigned int i;
> -	u8 *dpb_id;
> +	struct v4l2_h264_reference *dpb_id;

nit: will be nice to preserve to reverse Xmas coding style, but only if
you'll need to make v5 with more important changes

>  	int err;
>  
>  	/*
> @@ -811,14 +811,16 @@ static int tegra_vde_h264_setup_frames(struct tegra_ctx *ctx,
>  	}
>  
>  	for (i = 0; i < b.num_valid; i++) {
> -		ref = get_ref_buf(ctx, dst, dpb_id[i]);
> +		int dpb_idx = dpb_id[i].index;
>  
> -		err = tegra_vde_h264_setup_frame(ctx, h264, &b, ref, dpb_id[i],
> +		ref = get_ref_buf(ctx, dst, dpb_idx);
> +
> +		err = tegra_vde_h264_setup_frame(ctx, h264, &b, ref, dpb_idx,
>  						 h264->dpb_frames_nb++);
>  		if (err)
>  			return err;
>  
> -		if (b.refs[dpb_id[i]].pic_order_count < b.cur_pic_order_count)
> +		if (b.refs[dpb_idx].top_field_order_cnt < b.cur_pic_order_count)
>  			h264->dpb_ref_frames_with_earlier_poc_nb++;

Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>

^ permalink raw reply	[flat|nested] 55+ messages in thread

* Re: [PATCH v4 05/24] media: h264: Use v4l2_h264_reference for reflist
@ 2022-05-05  0:42     ` Dmitry Osipenko
  0 siblings, 0 replies; 55+ messages in thread
From: Dmitry Osipenko @ 2022-05-05  0:42 UTC (permalink / raw)
  To: Nicolas Dufresne, Tiffany Lin, Andrew-CT Chen,
	Mauro Carvalho Chehab, Dmitry Osipenko, Thierry Reding,
	Jonathan Hunter, Ezequiel Garcia, Philipp Zabel,
	Greg Kroah-Hartman, Heiko Stuebner, Matthias Brugger
  Cc: nicolas, linux-media, linux-kernel, linux-tegra, linux-rockchip,
	linux-staging, linux-arm-kernel, linux-mediatek

On 4/26/22 15:57, Nicolas Dufresne wrote:
>  static int tegra_vde_wait_mbe(struct tegra_vde *vde)
> @@ -768,7 +768,7 @@ static int tegra_vde_h264_setup_frames(struct tegra_ctx *ctx,
>  	struct h264_reflists reflists;
>  	struct vb2_buffer *ref;
>  	unsigned int i;
> -	u8 *dpb_id;
> +	struct v4l2_h264_reference *dpb_id;

nit: will be nice to preserve to reverse Xmas coding style, but only if
you'll need to make v5 with more important changes

>  	int err;
>  
>  	/*
> @@ -811,14 +811,16 @@ static int tegra_vde_h264_setup_frames(struct tegra_ctx *ctx,
>  	}
>  
>  	for (i = 0; i < b.num_valid; i++) {
> -		ref = get_ref_buf(ctx, dst, dpb_id[i]);
> +		int dpb_idx = dpb_id[i].index;
>  
> -		err = tegra_vde_h264_setup_frame(ctx, h264, &b, ref, dpb_id[i],
> +		ref = get_ref_buf(ctx, dst, dpb_idx);
> +
> +		err = tegra_vde_h264_setup_frame(ctx, h264, &b, ref, dpb_idx,
>  						 h264->dpb_frames_nb++);
>  		if (err)
>  			return err;
>  
> -		if (b.refs[dpb_id[i]].pic_order_count < b.cur_pic_order_count)
> +		if (b.refs[dpb_idx].top_field_order_cnt < b.cur_pic_order_count)
>  			h264->dpb_ref_frames_with_earlier_poc_nb++;

Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>

_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

^ permalink raw reply	[flat|nested] 55+ messages in thread

* Re: [PATCH v4 05/24] media: h264: Use v4l2_h264_reference for reflist
@ 2022-05-05  0:42     ` Dmitry Osipenko
  0 siblings, 0 replies; 55+ messages in thread
From: Dmitry Osipenko @ 2022-05-05  0:42 UTC (permalink / raw)
  To: Nicolas Dufresne, Tiffany Lin, Andrew-CT Chen,
	Mauro Carvalho Chehab, Dmitry Osipenko, Thierry Reding,
	Jonathan Hunter, Ezequiel Garcia, Philipp Zabel,
	Greg Kroah-Hartman, Heiko Stuebner, Matthias Brugger
  Cc: nicolas, linux-media, linux-kernel, linux-tegra, linux-rockchip,
	linux-staging, linux-arm-kernel, linux-mediatek

On 4/26/22 15:57, Nicolas Dufresne wrote:
>  static int tegra_vde_wait_mbe(struct tegra_vde *vde)
> @@ -768,7 +768,7 @@ static int tegra_vde_h264_setup_frames(struct tegra_ctx *ctx,
>  	struct h264_reflists reflists;
>  	struct vb2_buffer *ref;
>  	unsigned int i;
> -	u8 *dpb_id;
> +	struct v4l2_h264_reference *dpb_id;

nit: will be nice to preserve to reverse Xmas coding style, but only if
you'll need to make v5 with more important changes

>  	int err;
>  
>  	/*
> @@ -811,14 +811,16 @@ static int tegra_vde_h264_setup_frames(struct tegra_ctx *ctx,
>  	}
>  
>  	for (i = 0; i < b.num_valid; i++) {
> -		ref = get_ref_buf(ctx, dst, dpb_id[i]);
> +		int dpb_idx = dpb_id[i].index;
>  
> -		err = tegra_vde_h264_setup_frame(ctx, h264, &b, ref, dpb_id[i],
> +		ref = get_ref_buf(ctx, dst, dpb_idx);
> +
> +		err = tegra_vde_h264_setup_frame(ctx, h264, &b, ref, dpb_idx,
>  						 h264->dpb_frames_nb++);
>  		if (err)
>  			return err;
>  
> -		if (b.refs[dpb_id[i]].pic_order_count < b.cur_pic_order_count)
> +		if (b.refs[dpb_idx].top_field_order_cnt < b.cur_pic_order_count)
>  			h264->dpb_ref_frames_with_earlier_poc_nb++;

Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>

_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek

^ permalink raw reply	[flat|nested] 55+ messages in thread

* Re: [PATCH v4 05/24] media: h264: Use v4l2_h264_reference for reflist
@ 2022-05-05  0:42     ` Dmitry Osipenko
  0 siblings, 0 replies; 55+ messages in thread
From: Dmitry Osipenko @ 2022-05-05  0:42 UTC (permalink / raw)
  To: Nicolas Dufresne, Tiffany Lin, Andrew-CT Chen,
	Mauro Carvalho Chehab, Dmitry Osipenko, Thierry Reding,
	Jonathan Hunter, Ezequiel Garcia, Philipp Zabel,
	Greg Kroah-Hartman, Heiko Stuebner, Matthias Brugger
  Cc: nicolas, linux-media, linux-kernel, linux-tegra, linux-rockchip,
	linux-staging, linux-arm-kernel, linux-mediatek

On 4/26/22 15:57, Nicolas Dufresne wrote:
>  static int tegra_vde_wait_mbe(struct tegra_vde *vde)
> @@ -768,7 +768,7 @@ static int tegra_vde_h264_setup_frames(struct tegra_ctx *ctx,
>  	struct h264_reflists reflists;
>  	struct vb2_buffer *ref;
>  	unsigned int i;
> -	u8 *dpb_id;
> +	struct v4l2_h264_reference *dpb_id;

nit: will be nice to preserve to reverse Xmas coding style, but only if
you'll need to make v5 with more important changes

>  	int err;
>  
>  	/*
> @@ -811,14 +811,16 @@ static int tegra_vde_h264_setup_frames(struct tegra_ctx *ctx,
>  	}
>  
>  	for (i = 0; i < b.num_valid; i++) {
> -		ref = get_ref_buf(ctx, dst, dpb_id[i]);
> +		int dpb_idx = dpb_id[i].index;
>  
> -		err = tegra_vde_h264_setup_frame(ctx, h264, &b, ref, dpb_id[i],
> +		ref = get_ref_buf(ctx, dst, dpb_idx);
> +
> +		err = tegra_vde_h264_setup_frame(ctx, h264, &b, ref, dpb_idx,
>  						 h264->dpb_frames_nb++);
>  		if (err)
>  			return err;
>  
> -		if (b.refs[dpb_id[i]].pic_order_count < b.cur_pic_order_count)
> +		if (b.refs[dpb_idx].top_field_order_cnt < b.cur_pic_order_count)
>  			h264->dpb_ref_frames_with_earlier_poc_nb++;

Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 55+ messages in thread

* Re: [PATCH v4 03/24] media: videobuf2-v4l2: Warn on holding buffers without support
  2022-04-28 13:09         ` Nicolas Dufresne
@ 2022-11-24  8:57           ` Hans Verkuil
  0 siblings, 0 replies; 55+ messages in thread
From: Hans Verkuil @ 2022-11-24  8:57 UTC (permalink / raw)
  To: Nicolas Dufresne, Tomasz Figa, Marek Szyprowski, Mauro Carvalho Chehab
  Cc: Sebastian Fricke, linux-media, Ezequiel Garcia, linux-kernel

On 28/04/2022 15:09, Nicolas Dufresne wrote:
> Le jeudi 28 avril 2022 à 08:12 +0200, Hans Verkuil a écrit :
>> On 27/04/2022 17:08, Nicolas Dufresne wrote:
>>> Le mercredi 27 avril 2022 à 13:31 +0900, Tomasz Figa a écrit :
>>>> Hi Nicolas, Sebastian,
>>>>
>>>> On Tue, Apr 26, 2022 at 9:58 PM Nicolas Dufresne
>>>> <nicolas.dufresne@collabora.com> wrote:
>>>>>
>>>>> From: Sebastian Fricke <sebastian.fricke@collabora.com>
>>>>>
>>>>> Using V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF flag without specifying the
>>>>> subsystem flag VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF, results in
>>>>> silently ignoring it.
>>>>> Warn the user via a debug print when the flag is requested but ignored
>>>>> by the videobuf2 framework.
>>>>>
>>>>> Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
>>>>> Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
>>>>> Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
>>>>> ---
>>>>>  drivers/media/common/videobuf2/videobuf2-v4l2.c | 7 ++++++-
>>>>>  1 file changed, 6 insertions(+), 1 deletion(-)
>>>>>
>>>>
>>>> Thanks for the patch. Please see my comments inline.
>>>>
>>>>> diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
>>>>> index 6edf4508c636..812c8d1962e0 100644
>>>>> --- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
>>>>> +++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
>>>>> @@ -329,8 +329,13 @@ static int vb2_fill_vb2_v4l2_buffer(struct vb2_buffer *vb, struct v4l2_buffer *b
>>>>>                  */
>>>>>                 vbuf->flags &= ~V4L2_BUF_FLAG_TIMECODE;
>>>>>                 vbuf->field = b->field;
>>>>> -               if (!(q->subsystem_flags & VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF))
>>>>> +               if (!(q->subsystem_flags & VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF)) {
>>>>> +                       if (vbuf->flags & V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF)
>>>>> +                               dprintk(q, 1,
>>>>> +                                       "Request holding buffer (%d), unsupported on output queue\n",
>>>>> +                                       b->index);
>>>>
>>>> I wonder if we shouldn't just fail such a QBUF operation. Otherwise
>>>> the application would get unexpected behavior from the kernel.
>>>> Although it might be too late to do it now if there are applications
>>>> that rely on this implicit ignore...
>>>
>>> In the context of this patchset, the statu quo seems to be the logical thing to
>>> do. We can raise this up in a separate thread. The side effect is of course
>>> confusing for developers, but it is hard for me to tell if a hard failure may
>>> break an existing software.
>>
>> I am leaning towards returning an error as well. It makes no sense to try
>> to hold on to a buffer when this is not supported.
>>
>> I also thought that it should be enough to rely on the core to clear the
>> flag upon return if it isn't supported, but looking through the vb2 core code
>> it looks like we're not clearing unknown flags at all, so running this for
>> older kernels that do not support holding at all will not clear the flag
>> either.
>>
>> The handling for flags in vb2 can be improved, I think I'll take a look at
>> that myself.
>>
>> I plan to merge this series soon, but will skip this patch for now.
> 
> Ok, no problem. For me, as long as we do something about it, since it was not
> obvious and time consuming to debug.

After thinking some more (it only took me 7 months :-) ) I believe that an error
should be returned and the documentation for V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF
should be updated to mention that it will return EINVAL if set for a queue that
doesn't support this. vb2_queue_or_prepare_buf() is probably the best place for
this check.

Regards,

	Hans

> 
> regards,
> Nicolas
> 
>>
>> Regards,
>>
>> 	Hans
>>
>>>
>>> regards,
>>> Nicolas
>>>
>>>>
>>>> Best regards,
>>>> Tomasz
>>>
>>
> 


^ permalink raw reply	[flat|nested] 55+ messages in thread

end of thread, other threads:[~2022-11-24  8:57 UTC | newest]

Thread overview: 55+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-04-26 12:57 [PATCH v4 00/24] H.264 Field Decoding Support for Frame-based Decoders Nicolas Dufresne
2022-04-26 12:57 ` [PATCH v4 01/24] media: doc: Document dual use of H.264 pic_num/frame_num Nicolas Dufresne
2022-04-26 12:57 ` [PATCH v4 02/24] media: v4l2-mem2mem: Trace on implicit un-hold Nicolas Dufresne
2022-04-26 12:57 ` [PATCH v4 03/24] media: videobuf2-v4l2: Warn on holding buffers without support Nicolas Dufresne
2022-04-27  4:31   ` Tomasz Figa
2022-04-27 15:08     ` Nicolas Dufresne
2022-04-28  6:12       ` Hans Verkuil
2022-04-28 13:09         ` Nicolas Dufresne
2022-11-24  8:57           ` Hans Verkuil
2022-04-26 12:57 ` [PATCH v4 04/24] media: h264: Avoid wrapping long_term_frame_idx Nicolas Dufresne
2022-04-26 12:57 ` [PATCH v4 05/24] media: h264: Use v4l2_h264_reference for reflist Nicolas Dufresne
2022-04-26 12:57   ` Nicolas Dufresne
2022-04-26 12:57   ` Nicolas Dufresne
2022-04-26 12:57   ` Nicolas Dufresne
2022-05-05  0:42   ` Dmitry Osipenko
2022-05-05  0:42     ` Dmitry Osipenko
2022-05-05  0:42     ` Dmitry Osipenko
2022-05-05  0:42     ` Dmitry Osipenko
2022-04-26 12:57 ` [PATCH v4 06/24] media: h264: Increase reference lists size to 32 Nicolas Dufresne
2022-04-26 12:57   ` Nicolas Dufresne
2022-04-26 12:57 ` [PATCH v4 07/24] media: h264: Store current picture fields Nicolas Dufresne
2022-04-26 12:57 ` [PATCH v4 08/24] media: h264: Store all fields into the unordered list Nicolas Dufresne
2022-04-26 12:57 ` [PATCH v4 09/24] media: v4l2: Trace calculated p/b0/b1 initial reflist Nicolas Dufresne
2022-04-26 12:57 ` [PATCH v4 10/24] media: h264: Sort p/b reflist using frame_num Nicolas Dufresne
2022-04-26 12:57 ` [PATCH v4 11/24] media: v4l2: Reorder field reflist Nicolas Dufresne
2022-04-26 12:57 ` [PATCH v4 12/24] media: rkvdec: Stop overclocking the decoder Nicolas Dufresne
2022-04-26 12:57   ` Nicolas Dufresne
2022-04-26 12:57 ` [PATCH v4 13/24] media: rkvdec: h264: Fix dpb_valid implementation Nicolas Dufresne
2022-04-26 12:57   ` Nicolas Dufresne
2022-04-26 12:57 ` [PATCH v4 14/24] media: rkvdec: h264: Fix bit depth wrap in pps packet Nicolas Dufresne
2022-04-26 12:57   ` Nicolas Dufresne
2022-04-26 12:57 ` [PATCH v4 15/24] media: rkvdec: Move H264 SPS validation in rkvdec-h264 Nicolas Dufresne
2022-04-26 12:57   ` Nicolas Dufresne
2022-04-26 12:57 ` [PATCH v4 16/24] media: rkvdec: h264: Validate and use pic width and height in mbs Nicolas Dufresne
2022-04-26 12:57   ` Nicolas Dufresne
2022-04-26 12:57 ` [PATCH v4 17/24] media: rkvdec: h264: Fix reference frame_num wrap for second field Nicolas Dufresne
2022-04-26 12:57   ` Nicolas Dufresne
2022-04-26 12:57 ` [PATCH v4 18/24] media: rkvdec: Ensure decoded resolution fit coded resolution Nicolas Dufresne
2022-04-26 12:57   ` Nicolas Dufresne
2022-04-26 12:57 ` [PATCH v4 19/24] media: rkvdec-h264: Add field decoding support Nicolas Dufresne
2022-04-26 12:57   ` Nicolas Dufresne
2022-04-26 12:57 ` [PATCH v4 20/24] media: rkvdec: Enable capture buffer holding for H264 Nicolas Dufresne
2022-04-26 12:57   ` Nicolas Dufresne
2022-04-26 12:57 ` [PATCH v4 21/24] media: hantro: Stop using H.264 parameter pic_num Nicolas Dufresne
2022-04-26 12:57   ` Nicolas Dufresne
2022-04-26 12:57 ` [PATCH v4 22/24] media: hantro: h264: Make dpb entry management more robust Nicolas Dufresne
2022-04-26 12:57   ` Nicolas Dufresne
2022-04-26 12:57 ` [PATCH v4 23/24] media: hantro: Add H.264 field decoding support Nicolas Dufresne
2022-04-26 12:57   ` Nicolas Dufresne
2022-04-28  8:50   ` Hans Verkuil
2022-04-28  8:50     ` Hans Verkuil
2022-04-28 13:10     ` Nicolas Dufresne
2022-04-28 13:10       ` Nicolas Dufresne
2022-04-26 12:57 ` [PATCH v4 24/24] media: hantro: Enable HOLD_CAPTURE_BUF for H.264 Nicolas Dufresne
2022-04-26 12:57   ` Nicolas Dufresne

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