From: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
To: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
devel@driverdev.osuosl.org, linux-arm-kernel@lists.infradead.org,
linux-sunxi@googlegroups.com
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>,
Maxime Ripard <maxime.ripard@bootlin.com>,
Paul Kocialkowski <paul.kocialkowski@bootlin.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Chen-Yu Tsai <wens@csie.org>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
Hans Verkuil <hverkuil@xs4all.nl>,
Ezequiel Garcia <ezequiel@collabora.com>,
Tomasz Figa <tfiga@chromium.org>,
Alexandre Courbot <acourbot@chromium.org>,
Nicolas Dufresne <nicolas@ndufresne.ca>,
Boris Brezillon <boris.brezillon@collabora.com>,
Jernej Skrabec <jernej.skrabec@siol.net>,
Jonas Karlman <jonas@kwiboo.se>
Subject: [PATCH v6 1/5] media: v4l2-ctrls: Split off MPEG-2 controls validation
Date: Fri, 14 Jun 2019 16:38:33 +0200 [thread overview]
Message-ID: <20190614143837.15605-2-paul.kocialkowski@bootlin.com> (raw)
In-Reply-To: <20190614143837.15605-1-paul.kocialkowski@bootlin.com>
Since codec controls validation comes with its own logic, split off
std_validate for MPEG-2 for better clarity.
Use a shorter name for the validated structure and use the
type-specific pointer to grab it while at it.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
---
drivers/media/v4l2-core/v4l2-ctrls.c | 95 +++++++++++++++-------------
1 file changed, 52 insertions(+), 43 deletions(-)
diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
index f2b9bdedbf8c..824126267c44 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -1617,11 +1617,61 @@ static void std_log(const struct v4l2_ctrl *ctrl)
0; \
})
+static int std_validate_mpeg2(const struct v4l2_ctrl *ctrl, u32 idx,
+ union v4l2_ctrl_ptr ptr)
+{
+ struct v4l2_ctrl_mpeg2_slice_params *slice_params =
+ ptr.p_mpeg2_slice_params;
+
+ switch ((u32)ctrl->type) {
+ case V4L2_CTRL_TYPE_MPEG2_SLICE_PARAMS:
+ switch (slice_params->sequence.chroma_format) {
+ case 1: /* 4:2:0 */
+ case 2: /* 4:2:2 */
+ case 3: /* 4:4:4 */
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (slice_params->picture.intra_dc_precision) {
+ case 0: /* 8 bits */
+ case 1: /* 9 bits */
+ case 2: /* 10 bits */
+ case 3: /* 11 bits */
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (slice_params->picture.picture_structure) {
+ case 1: /* interlaced top field */
+ case 2: /* interlaced bottom field */
+ case 3: /* progressive */
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (slice_params->picture.picture_coding_type) {
+ case V4L2_MPEG2_PICTURE_CODING_TYPE_I:
+ case V4L2_MPEG2_PICTURE_CODING_TYPE_P:
+ case V4L2_MPEG2_PICTURE_CODING_TYPE_B:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+ default:
+ return 0;
+ }
+}
+
/* Validate a new control */
static int std_validate(const struct v4l2_ctrl *ctrl, u32 idx,
union v4l2_ctrl_ptr ptr)
{
- struct v4l2_ctrl_mpeg2_slice_params *p_mpeg2_slice_params;
size_t len;
u64 offset;
s64 val;
@@ -1685,49 +1735,8 @@ static int std_validate(const struct v4l2_ctrl *ctrl, u32 idx,
return 0;
case V4L2_CTRL_TYPE_MPEG2_SLICE_PARAMS:
- p_mpeg2_slice_params = ptr.p;
-
- switch (p_mpeg2_slice_params->sequence.chroma_format) {
- case 1: /* 4:2:0 */
- case 2: /* 4:2:2 */
- case 3: /* 4:4:4 */
- break;
- default:
- return -EINVAL;
- }
-
- switch (p_mpeg2_slice_params->picture.intra_dc_precision) {
- case 0: /* 8 bits */
- case 1: /* 9 bits */
- case 2: /* 10 bits */
- case 3: /* 11 bits */
- break;
- default:
- return -EINVAL;
- }
-
- switch (p_mpeg2_slice_params->picture.picture_structure) {
- case 1: /* interlaced top field */
- case 2: /* interlaced bottom field */
- case 3: /* progressive */
- break;
- default:
- return -EINVAL;
- }
-
- switch (p_mpeg2_slice_params->picture.picture_coding_type) {
- case V4L2_MPEG2_PICTURE_CODING_TYPE_I:
- case V4L2_MPEG2_PICTURE_CODING_TYPE_P:
- case V4L2_MPEG2_PICTURE_CODING_TYPE_B:
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-
case V4L2_CTRL_TYPE_MPEG2_QUANTIZATION:
- return 0;
+ return std_validate_mpeg2(ctrl, idx, ptr);
case V4L2_CTRL_TYPE_FWHT_PARAMS:
return 0;
--
2.21.0
next prev parent reply other threads:[~2019-06-14 14:39 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-14 14:38 [PATCH v6 0/5] HEVC/H.265 stateless support for V4L2 and Cedrus Paul Kocialkowski
2019-06-14 14:38 ` Paul Kocialkowski [this message]
2019-06-14 14:38 ` [PATCH v6 2/5] media: v4l2-ctrls: Split off MPEG-2 controls initialization Paul Kocialkowski
2019-06-14 14:38 ` [PATCH v6 3/5] media: v4l: Add definitions for the HEVC slice controls Paul Kocialkowski
2019-07-22 14:40 ` Hans Verkuil
2019-07-25 12:52 ` Paul Kocialkowski
2019-06-14 14:38 ` [PATCH v6 4/5] media: pixfmt: Document the HEVC slice pixel format Paul Kocialkowski
2019-06-14 14:38 ` [PATCH v6 5/5] media: cedrus: Add HEVC/H.265 decoding support Paul Kocialkowski
2019-07-22 13:17 ` [PATCH v6 0/5] HEVC/H.265 stateless support for V4L2 and Cedrus Paul Kocialkowski
2019-07-22 14:41 ` Hans Verkuil
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