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[129.46.96.20]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7a2300f24fasm245487b3a.42.2025.10.17.11.35.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Oct 2025 11:35:25 -0700 (PDT) From: Deepa Guthyappa Madivalara Date: Fri, 17 Oct 2025 11:35:15 -0700 Subject: [PATCH v2 1/5] media: uapi: videodev2: Add support for AV1 stateful decoder Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251017-av1_irisdecoder-v2-1-964a5478139e@oss.qualcomm.com> References: <20251017-av1_irisdecoder-v2-0-964a5478139e@oss.qualcomm.com> In-Reply-To: <20251017-av1_irisdecoder-v2-0-964a5478139e@oss.qualcomm.com> To: Mauro Carvalho Chehab , Vikash Garodia , Dikshita Agarwal , Abhinav Kumar , Bryan O'Donoghue Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, kernel test robot , Deepa Guthyappa Madivalara X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1760726124; l=2423; i=deepa.madivalara@oss.qualcomm.com; s=20250814; h=from:subject:message-id; bh=0hCN7qCXSLUAZXIjLrkyQ5Q9apLRdYKGIeQ8hEqHEvA=; b=RGUIsMsESqBt6hXY0FtwCgHQ3CTacRhs+L+y0gnVmPeLhBqSoeivguFT8nRn9HVtwghv0nqUv qy4LpmxRUlqAQf8W0eYj+Od9Nf31cocgjG9o80jfH6I+NCqMwt91laD X-Developer-Key: i=deepa.madivalara@oss.qualcomm.com; a=ed25519; pk=MOEXgyokievn+bgpHdS6Ixh/KQYyS90z2mqIbQ822FQ= X-Proofpoint-ORIG-GUID: ffwmo6SYrUmbQi3yvApiTrn9zzO8NKHG X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMDExMDAxOCBTYWx0ZWRfX4OKqUOUZf5mC m1TwokUUbfmC0sxyEEg13xnq0uT4VhVJu2J/9W2mNt7H4vnDI8eI2Aabtk2Vvf2cD1MO51IRPR1 s4oRRzBN9254ltvDjqmmGD3YVndAuvaXmbt+ZbHZYpGGc4tncnYDXEhtkHjs6Z4LikuIZEHRTg1 goSbubmLTmm8g/5BuWoFiOav33WLlqsvsoLOic8JuQP+vQPm9HPJc6WN20K/R+i2oxFF+zU7Q5S 12ujyQ9Er6rf535gYgVKVDi0Y6+N7noKRja3TTr94eNa4KLRf+Ty6ooUwsXQtgyzE3fvMUIseVP UDyDGontbxRHpp1fLD6AWWFdwNv/gX7Hl8NRuNSt7284AhONWpBE+qHX/9Gd/dw17q4kGvlCArV W5dZlTUn8zBO6aQRbI0OjOt6fMHkzQ== X-Proofpoint-GUID: ffwmo6SYrUmbQi3yvApiTrn9zzO8NKHG X-Authority-Analysis: v=2.4 cv=PdTyRyhd c=1 sm=1 tr=0 ts=68f28e1c cx=c_pps a=hnmNkyzTK/kJ09Xio7VxxA==:117 a=ouPCqIW2jiPt+lZRy3xVPw==:17 a=IkcTkHD0fZMA:10 a=x6icFKpwvdMA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=5q8hE9cQKCNJD2usWYQA:9 a=QEXdDO2ut3YA:10 a=PEH46H7Ffwr30OY-TuGO:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-10-17_06,2025-10-13_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 phishscore=0 bulkscore=0 clxscore=1015 adultscore=0 lowpriorityscore=0 impostorscore=0 priorityscore=1501 spamscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2510020000 definitions=main-2510110018 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. Signed-off-by: Deepa Guthyappa Madivalara Reviewed-by: Nicolas Dufresne --- 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 806ed73ac474ce0e6df00f902850db9fd0db240e..d82557a6ac30851b4fd432a5cea= b969abaed2e25 100644 --- a/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst +++ b/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst @@ -274,6 +274,14 @@ Compressed Formats of macroblocks to decode a full corresponding frame to the matching capture buffer. =20 + * .. _V4L2-PIX-FMT-AV1: + + - ``V4L2_PIX_FMT_AV1`` + - 'AV10' + - AV1 compressed video frame. This format is adapted for implementin= g AV1 + pipeline. The decoder implements stateful video decoder and expect= s one + Temporal Unit per buffer from OBU-stream or AnnexB. + The encoder generates one Temporal Unit per buffer. .. raw:: latex =20 \normalsize diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index becd08fdbddb857f8f2bf205d2164dc6e20e80b2..e03cfe0a5ae830595f0bf69b951= ca16beaedab72 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 pa= rsed slices */ #define V4L2_PIX_FMT_HEVC_SLICE v4l2_fourcc('S', '2', '6', '5') /* HEVC pa= rsed slices */ #define V4L2_PIX_FMT_AV1_FRAME v4l2_fourcc('A', 'V', '1', 'F') /* AV1 pars= ed frame */ +#define V4L2_PIX_FMT_AV1 v4l2_fourcc('A', 'V', '1', '0') /* 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 */ --=20 2.34.1