On Wed Dec 10 10:59:04 2025 -0800, Deepa Guthyappa Madivalara wrote:
> 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 <[email protected]>
> Reviewed-by: Nicolas Dufresne <[email protected]>
> Reviewed-by: Hans Verkuil <[email protected]>
> Signed-off-by: Deepa Guthyappa Madivalara <[email protected]>
> Tested-by: Val Packett <[email protected]>
> Signed-off-by: Bryan O'Donoghue <[email protected]>
> Signed-off-by: Hans Verkuil <[email protected]>
Patch committed.
Thanks,
Hans Verkuil
Documentation/userspace-api/media/v4l/pixfmt-compressed.rst | 8 ++++++++
include/uapi/linux/videodev2.h | 1 +
2 files changed, 9 insertions(+)
---
diff --git a/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
b/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
index c7efb0465db6..235f955d3cd5 100644
--- a/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
+++ b/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
@@ -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
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index add08188f068..848e86617d5c 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -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 */
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