From: Kamil Debski Date: Fri, 25 Jan 2013 09:29:56 +0000 (-0300) Subject: [media] v4l: Define video buffer flag for the COPY timestamp type X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=53bf0f446bc387eabdd535dca080789cc74607f4;p=openwrt%2Fstaging%2Fblogic.git [media] v4l: Define video buffer flag for the COPY timestamp type Define video buffer flag for the COPY timestamp. In this case the timestamp value is copied from the OUTPUT to the corresponding CAPTURE buffer. Signed-off-by: Kamil Debski Signed-off-by: Kyungmin Park Reviewed-by: Sylwester Nawrocki Acked-by: Hans Verkuil Signed-off-by: Sylwester Nawrocki Signed-off-by: Mauro Carvalho Chehab --- diff --git a/Documentation/DocBook/media/v4l/io.xml b/Documentation/DocBook/media/v4l/io.xml index e6c58559ca6b..2c4c068dde83 100644 --- a/Documentation/DocBook/media/v4l/io.xml +++ b/Documentation/DocBook/media/v4l/io.xml @@ -1145,6 +1145,12 @@ in which case caches have not been used. same clock outside V4L2, use clock_gettime(2) . + + V4L2_BUF_FLAG_TIMESTAMP_COPY + 0x4000 + The CAPTURE buffer timestamp has been taken from the + corresponding OUTPUT buffer. This flag applies only to mem2mem devices. + diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 234d1d870914..b5f5cddcf1c3 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -705,6 +705,7 @@ struct v4l2_buffer { #define V4L2_BUF_FLAG_TIMESTAMP_MASK 0xe000 #define V4L2_BUF_FLAG_TIMESTAMP_UNKNOWN 0x0000 #define V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC 0x2000 +#define V4L2_BUF_FLAG_TIMESTAMP_COPY 0x4000 /** * struct v4l2_exportbuffer - export of video buffer as DMABUF file descriptor