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[129.46.96.20]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-29498d40a73sm177671325ad.74.2025.10.30.00.00.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 30 Oct 2025 00:00:24 -0700 (PDT) From: Deepa Guthyappa Madivalara Date: Thu, 30 Oct 2025 00:00:06 -0700 Subject: [PATCH v3 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: <20251030-av1d_stateful_v3-v3-1-a1184de52fc4@oss.qualcomm.com> References: <20251030-av1d_stateful_v3-v3-0-a1184de52fc4@oss.qualcomm.com> In-Reply-To: <20251030-av1d_stateful_v3-v3-0-a1184de52fc4@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=1761807623; l=2423; i=deepa.madivalara@oss.qualcomm.com; s=20250814; h=from:subject:message-id; bh=nkMTv+cGBneu9mDQTjTqBZI+GutDvkdMMD3WodVls7o=; b=YXg1T+6exolovBIvmlpqgpeHmi+0zn2Pmy4thtiJSXAp0j6HTJrXOM/YQbZc+4P6CcLABv4rE q2MIfsrUPaXCg1YK7dZpsV59L/HyCErY8nDeVeciPW1QNp5dTQbYeLK X-Developer-Key: i=deepa.madivalara@oss.qualcomm.com; a=ed25519; pk=MOEXgyokievn+bgpHdS6Ixh/KQYyS90z2mqIbQ822FQ= X-Proofpoint-ORIG-GUID: 1TCXgc4J1ICx1vxS5kB1UgjYOxXyw6nQ X-Proofpoint-GUID: 1TCXgc4J1ICx1vxS5kB1UgjYOxXyw6nQ X-Authority-Analysis: v=2.4 cv=Cf4FJbrl c=1 sm=1 tr=0 ts=69030d0a cx=c_pps a=IZJwPbhc+fLeJZngyXXI0A==:117 a=ouPCqIW2jiPt+lZRy3xVPw==:17 a=IkcTkHD0fZMA:10 a=x6icFKpwvdMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=5q8hE9cQKCNJD2usWYQA:9 a=QEXdDO2ut3YA:10 a=uG9DUKGECoFWVXl0Dc02:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMDMwMDA1NSBTYWx0ZWRfXzz+/U/45SvbF 92qIP2ZXdinXNaqf4xdVM6VpCkCGNL4GtM820tzL+yDdzNOdiCoewzN+thClU6NgDMxJvQqOUnh Fg1z3YfxdlaJfO+cmtHKZslywzn26lhk1bzfVSaBQdpG3wT+YotuCGPKCbnPVGtJ9LJqTR0JbNd 3xQHaKP2AQZybLvLZwzAjeyvCWdZyaCpJ6ZGs1ZsPYvs5VhgcxANMkgMWUiKfCvh2DS/2Gc1eK2 CzNjJs2gJaGIQtUFYNtDBNoEJFgeL1rsz0027n85SMoa86apv9iWD3kB6W1moAP7OS2D+XJEned ADzYlSrCzu9F9w9YvTExUbmEE8tf2gNAohkEE+kE31+Fki60946sSKu0/Vm0WYRHKGdTNXkMC6a 6ZVgEwKnGC7gR5wzuo2wePrXxy2sRw== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-10-30_01,2025-10-29_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 suspectscore=0 phishscore=0 malwarescore=0 impostorscore=0 clxscore=1015 priorityscore=1501 lowpriorityscore=0 spamscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2510240001 definitions=main-2510300055 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: Bryan O'Donoghue --- 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 c7efb0465db6480fe35be8557728c196e0e530f4..0c70410ffd4d58e0719d3cf13ad= 336c97b454ae9 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. =20 + * .. _V4L2-PIX-FMT-AV1: + + - ``V4L2_PIX_FMT_AV1`` + - 'AV01' + - 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..cf0b71bbe0f9d397e1e6c88433a= 0fc3ba11fb947 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', '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 */ --=20 2.34.1