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media: uapi: videodev2: Add support for AV1 stateful decoder

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Introduce a new pixel format, V4L2_PIX_FMT_AV1, to the
Video4Linux2(V4L2) API. This format is intended for AV1
bitstreams in stateful decoding/encoding workflows.
The fourcc code 'AV10' is used to distinguish
this format from the existing V4L2_PIX_FMT_AV1_FRAME,
which is used for stateless AV1 decoder implementation.

Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Signed-off-by: Deepa Guthyappa Madivalara <deepa.madivalara@oss.qualcomm.com>
Tested-by: Val Packett <val@packett.cool>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
This commit is contained in:
Deepa Guthyappa Madivalara
2025-12-10 10:59:04 -08:00
committed by Hans Verkuil
parent 17526c7e69
commit 406fc2e9ca
2 changed files with 9 additions and 0 deletions
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8
Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
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@@ -275,6 +275,14 @@ Compressed Formats
of macroblocks to decode a full corresponding frame to the matching
capture buffer.
* .. _V4L2-PIX-FMT-AV1:
- ``V4L2_PIX_FMT_AV1``
- 'AV01'
- AV1 compressed video frame. This format is adapted for implementing AV1
pipeline. The decoder implements stateful video decoder and expects one
temporal unit per buffer in OBU stream format.
The encoder generates one Temporal Unit per buffer.
.. raw:: latex
\normalsize

1
include/uapi/linux/videodev2.h
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@@ -775,6 +775,7 @@ struct v4l2_pix_format {
#define V4L2_PIX_FMT_H264_SLICE v4l2_fourcc('S', '2', '6', '4') /* H264 parsed slices */
#define V4L2_PIX_FMT_HEVC_SLICE v4l2_fourcc('S', '2', '6', '5') /* HEVC parsed slices */
#define V4L2_PIX_FMT_AV1_FRAME v4l2_fourcc('A', 'V', '1', 'F') /* AV1 parsed frame */
#define V4L2_PIX_FMT_AV1 v4l2_fourcc('A', 'V', '0', '1') /* AV1 */
#define V4L2_PIX_FMT_SPK v4l2_fourcc('S', 'P', 'K', '0') /* Sorenson Spark */
#define V4L2_PIX_FMT_RV30 v4l2_fourcc('R', 'V', '3', '0') /* RealVideo 8 */
#define V4L2_PIX_FMT_RV40 v4l2_fourcc('R', 'V', '4', '0') /* RealVideo 9 & 10 */