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So we add a buf flag to tell this case. Signed-off-by: Ming Qian Signed-off-by: Shijie Qin Signed-off-by: Zhou Peng --- Documentation/userspace-api/media/v4l/buffer.rst | 7 +++++++ include/uapi/linux/videodev2.h | 1 + 2 files changed, 8 insertions(+) diff --git a/Documentation/userspace-api/media/v4l/buffer.rst b/Documentation/userspace-api/media/v4l/buffer.rst index e991ba73d873..11013bcf8a41 100644 --- a/Documentation/userspace-api/media/v4l/buffer.rst +++ b/Documentation/userspace-api/media/v4l/buffer.rst @@ -607,6 +607,13 @@ 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 + - The buffer only contains codec config data, eg. sps and pps. + Applications can set this bit when ``type`` refers to an output + stream, this flag is usually used by v4l2 decoder. * .. _`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 167c0e40ec06..5bb0682b4a23 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -1119,6 +1119,7 @@ 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 +#define V4L2_BUF_FLAG_CODECCONFIG 0x00200000 /* request_fd is valid */ #define V4L2_BUF_FLAG_REQUEST_FD 0x00800000 -- 2.32.0