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Tue, 28 Jun 2022 02:19:37 +0000 From: Ming Qian To: mchehab@kernel.org, hverkuil-cisco@xs4all.nl Cc: shawnguo@kernel.org, robh+dt@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH] media: videobuf2: add V4L2_BUF_FLAG_CODECCONFIG flag Date: Tue, 28 Jun 2022 10:19:09 +0800 Message-Id: <20220628021909.14620-1-ming.qian@nxp.com> X-Mailer: git-send-email 2.36.1 X-ClientProxiedBy: SI2PR01CA0019.apcprd01.prod.exchangelabs.com (2603:1096:4:192::12) To AM6PR04MB6341.eurprd04.prod.outlook.com (2603:10a6:20b:d8::14) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: a26b6096-b4de-4d82-15da-08da58aca641 X-MS-TrafficTypeDiagnostic: DBBPR04MB8044:EE_ X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:AM6PR04MB6341.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230016)(4636009)(39860400002)(396003)(366004)(346002)(136003)(376002)(5660300002)(44832011)(7416002)(2616005)(316002)(8936002)(478600001)(1076003)(36756003)(41300700001)(83380400001)(186003)(6486002)(66556008)(26005)(86362001)(52116002)(6512007)(6506007)(66946007)(38100700002)(38350700002)(66476007)(4326008)(6666004)(2906002)(8676002);DIR:OUT;SFP:1101; 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It's only used for parsing header, and can't be decoded. Current, it's usually used by android. Signed-off-by: Ming Qian Reported-by: kernel test robot --- Documentation/userspace-api/media/v4l/buffer.rst | 9 +++++++++ include/uapi/linux/videodev2.h | 2 ++ 2 files changed, 11 insertions(+) diff --git a/Documentation/userspace-api/media/v4l/buffer.rst b/Documentation/userspace-api/media/v4l/buffer.rst index 4638ec64db00..acdc4556f4f4 100644 --- a/Documentation/userspace-api/media/v4l/buffer.rst +++ b/Documentation/userspace-api/media/v4l/buffer.rst @@ -607,6 +607,15 @@ Buffer Flags the format. Any subsequent call to the :ref:`VIDIOC_DQBUF ` ioctl will not block anymore, but return an ``EPIPE`` error code. + * .. _`V4L2-BUF-FLAG-CODECCONFIG`: + + - ``V4L2_BUF_FLAG_CODECCONFIG`` + - 0x00200000 + - This flag may be set when the buffer only contains codec config + header, but does not contain any frame data. Usually the codec config + header is merged to the next idr frame, with the flag + ``V4L2_BUF_FLAG_KEYFRAME``, but there is still some scenes that will + split the header and queue it separately. * .. _`V4L2-BUF-FLAG-REQUEST-FD`: - ``V4L2_BUF_FLAG_REQUEST_FD`` diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 5311ac4fde35..8708ef257710 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -1131,6 +1131,8 @@ static inline __u64 v4l2_timeval_to_ns(const struct timeval *tv) #define V4L2_BUF_FLAG_TSTAMP_SRC_SOE 0x00010000 /* mem2mem encoder/decoder */ #define V4L2_BUF_FLAG_LAST 0x00100000 +/* Buffer only contains codec header */ +#define V4L2_BUF_FLAG_CODECCONFIG 0x00200000 /* request_fd is valid */ #define V4L2_BUF_FLAG_REQUEST_FD 0x00800000