From: Benjamin Gaignard <benjamin.gaignard@collabora.com>
To: mchehab@kernel.org, hverkuil@xs4all.nl,
ezequiel@vanguardiasur.com.ar, p.zabel@pengutronix.de,
gregkh@linuxfoundation.org, mripard@kernel.org,
paul.kocialkowski@bootlin.com, wens@csie.org,
jernej.skrabec@gmail.com, samuel@sholland.org,
nicolas.dufresne@collabora.com, andrzej.p@collabora.com
Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-rockchip@lists.infradead.org,
linux-staging@lists.linux.dev,
linux-arm-kernel@lists.infradead.org,
linux-sunxi@lists.linux.dev, kernel@collabora.com,
Benjamin Gaignard <benjamin.gaignard@collabora.com>
Subject: [PATCH v6 16/17] media: uapi: Change data_bit_offset definition
Date: Fri, 27 May 2022 16:31:33 +0200 [thread overview]
Message-ID: <20220527143134.3360174-17-benjamin.gaignard@collabora.com> (raw)
In-Reply-To: <20220527143134.3360174-1-benjamin.gaignard@collabora.com>
'F.7.3.6.1 General slice segment header syntax' section of HEVC
specification describes that a slice header always end aligned on
byte boundary, therefore we only need to provide the data offset in bytes.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst | 4 ++--
drivers/staging/media/sunxi/cedrus/cedrus_h265.c | 2 +-
include/media/hevc-ctrls.h | 4 ++--
3 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
index 48a8825a001b..37079581c661 100644
--- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
+++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
@@ -3008,8 +3008,8 @@ enum v4l2_mpeg_video_hevc_size_of_length_field -
- ``bit_size``
- Size (in bits) of the current slice data.
* - __u32
- - ``data_bit_offset``
- - Offset (in bits) to the video data in the current slice data.
+ - ``data_byte_offset``
+ - Offset (in bytes) to the video data in the current slice data.
* - __u32
- ``num_entry_point_offsets``
- Specifies the number of entry point offset syntax elements in the slice header.
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_h265.c b/drivers/staging/media/sunxi/cedrus/cedrus_h265.c
index 411601975124..835454239f73 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_h265.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_h265.c
@@ -405,7 +405,7 @@ static void cedrus_h265_setup(struct cedrus_ctx *ctx,
/* Initialize bitstream access. */
cedrus_write(dev, VE_DEC_H265_TRIGGER, VE_DEC_H265_TRIGGER_INIT_SWDEC);
- cedrus_h265_skip_bits(dev, slice_params->data_bit_offset);
+ cedrus_h265_skip_bits(dev, slice_params->data_byte_offset * 8);
/* Bitstream parameters. */
diff --git a/include/media/hevc-ctrls.h b/include/media/hevc-ctrls.h
index 9abca1a75bd4..936ff693967b 100644
--- a/include/media/hevc-ctrls.h
+++ b/include/media/hevc-ctrls.h
@@ -312,7 +312,7 @@ struct v4l2_hevc_pred_weight_table {
* V4L2_CTRL_FLAG_DYNAMIC_ARRAY flag must be set when using it.
*
* @bit_size: size (in bits) of the current slice data
- * @data_bit_offset: offset (in bits) to the video data in the current slice data
+ * @data_byte_offset: offset (in bytes) to the video data in the current slice data
* @num_entry_point_offsets: specifies the number of entry point offset syntax
* elements in the slice header.
* @nal_unit_type: specifies the coding type of the slice (B, P or I)
@@ -356,7 +356,7 @@ struct v4l2_hevc_pred_weight_table {
*/
struct v4l2_ctrl_hevc_slice_params {
__u32 bit_size;
- __u32 data_bit_offset;
+ __u32 data_byte_offset;
__u32 num_entry_point_offsets;
/* ISO/IEC 23008-2, ITU-T Rec. H.265: NAL unit header */
__u8 nal_unit_type;
--
2.32.0
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next prev parent reply other threads:[~2022-05-27 14:39 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-27 14:31 [PATCH v6 00/17] Move HEVC stateless controls out of staging Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 01/17] videodev2.h: add V4L2_CTRL_FLAG_DYNAMIC_ARRAY Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 02/17] v4l2-ctrls: add support for dynamically allocated arrays Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 03/17] vivid: add dynamic array test control Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 04/17] media: uapi: HEVC: Add missing fields in HEVC controls Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 05/17] media: uapi: HEVC: Rename HEVC stateless controls with STATELESS prefix Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 06/17] media: uapi: HEVC: Change pic_order_cnt definition in v4l2_hevc_dpb_entry Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 07/17] media: uapi: HEVC: Add SEI pic struct flags Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 08/17] media: uapi: HEVC: Add documentation to uAPI structure Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 09/17] media: uapi: HEVC: Define V4L2_CID_STATELESS_HEVC_SLICE_PARAMS as a dynamic array Benjamin Gaignard
2022-05-29 9:19 ` Jernej Škrabec
2022-06-01 15:43 ` Jernej Škrabec
2022-06-01 16:02 ` Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 10/17] media: uapi: Move parsed HEVC pixel format out of staging Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 11/17] media: uapi: Add V4L2_CID_STATELESS_HEVC_ENTRY_POINT_OFFSETS control Benjamin Gaignard
2022-05-29 6:40 ` Jernej Škrabec
2022-05-30 9:18 ` Hans Verkuil
2022-05-30 13:49 ` Hans Verkuil
2022-05-30 21:24 ` Jernej Škrabec
2022-05-31 6:58 ` Benjamin Gaignard
2022-05-31 18:20 ` Jernej Škrabec
2022-06-01 16:20 ` Nicolas Dufresne
2022-06-01 16:35 ` Jernej Škrabec
2022-06-01 17:07 ` Nicolas Dufresne
2022-06-10 14:08 ` John Cox
2022-05-27 14:31 ` [PATCH v6 12/17] media: uapi: Move the HEVC stateless control type out of staging Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 13/17] media: controls: Log HEVC stateless control in .std_log Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 14/17] media: hantro: Stop using Hantro dedicated control Benjamin Gaignard
2022-05-27 14:31 ` [PATCH v6 15/17] media: uapi: HEVC: fix padding in v4l2 control structures Benjamin Gaignard
2022-05-27 14:31 ` Benjamin Gaignard [this message]
2022-05-29 6:45 ` [PATCH v6 16/17] media: uapi: Change data_bit_offset definition Jernej Škrabec
2022-06-01 16:17 ` Jernej Škrabec
2022-06-01 16:33 ` Benjamin Gaignard
2022-06-12 20:40 ` Jernej Škrabec
2022-06-13 18:17 ` Jernej Škrabec
2022-06-10 14:00 ` [PATCH v6 00/17] Move HEVC stateless controls out of staging John Cox
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