Hi,
> From: Hans Verkuil [mailto:[email protected]]
> Sent: Thursday, January 24, 2013 1:51 PM
>
> On Thu 24 January 2013 13:35:05 Kamil Debski wrote:
> > 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 <[email protected]>
> > Signed-off-by: Kyungmin Park <[email protected]>
> > ---
> > Documentation/DocBook/media/v4l/io.xml | 6 ++++++
> > include/uapi/linux/videodev2.h | 1 +
> > 2 files changed, 7 insertions(+)
> >
> > diff --git a/Documentation/DocBook/media/v4l/io.xml
> > b/Documentation/DocBook/media/v4l/io.xml
> > index 73f202f..fdd1822 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.</entry>
> > same clock outside V4L2, use
> > <function>clock_gettime(2)</function> .</entry>
> > </row>
> > + <row>
> > +
> <entry><constant>V4L2_BUF_FLAG_TIMESTAMP_COPY</constant></entry>
> > + <entry>0x4000</entry>
> > + <entry>The CAPTURE buffer timestamp has been taken from the
> > + corresponding OUTPUT buffer.</entry>
> > + </row>
>
> I think I mentioned it before somewhere, but it is helpful if it is
> mentioned here that this only applies to mem2mem devices.
Ok, will do.
Best wishes,
Kamil
> Regards,
>
> Hans
>
> > </tbody>
> > </tgroup>
> > </table>
> > diff --git a/include/uapi/linux/videodev2.h
> > b/include/uapi/linux/videodev2.h index 72e9921..d5a59af 100644
> > --- a/include/uapi/linux/videodev2.h
> > +++ b/include/uapi/linux/videodev2.h
> > @@ -697,6 +697,7 @@ 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
> >
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