Re: [PATCH v3 3/9] DocBook/v4l: Add compressed video formats used on MT8173 codec driver
From: tiffany lin
Date: Sun Jul 10 2016 - 22:56:21 EST
Hi Hans,
On Fri, 2016-07-08 at 12:23 +0200, Hans Verkuil wrote:
> On 05/30/2016 02:29 PM, Tiffany Lin wrote:
> > Add V4L2_PIX_FMT_MT21 documentation
> >
> > Signed-off-by: Tiffany Lin <tiffany.lin@xxxxxxxxxxxx>
> > ---
> > Documentation/DocBook/media/v4l/pixfmt.xml | 6 ++++++
> > 1 file changed, 6 insertions(+)
> >
> > diff --git a/Documentation/DocBook/media/v4l/pixfmt.xml b/Documentation/DocBook/media/v4l/pixfmt.xml
> > index 5a08aee..d40e0ce 100644
> > --- a/Documentation/DocBook/media/v4l/pixfmt.xml
> > +++ b/Documentation/DocBook/media/v4l/pixfmt.xml
> > @@ -1980,6 +1980,12 @@ array. Anything what's in between the UYVY lines is JPEG data and should be
> > concatenated to form the JPEG stream. </para>
> > </entry>
> > </row>
> > + <row id="V4L2_PIX_FMT_MT21">
> > + <entry><constant>V4L2_PIX_FMT_MT21</constant></entry>
> > + <entry>'MT21'</entry>
> > + <entry>Compressed two-planar YVU420 format used by Mediatek MT8173
> > + codec driver.</entry>
>
> Can you give a few more details? The encoder driver doesn't seem to produce this
> format, so who is creating this? Where is this format documented?
>
It can be as input format for encoder, MDP and display drivers in our
platform.
This private format is only available in our platform.
So I put it in "Reserved Format Identifiers" sections.
best regards,
Tiffany
> Regards,
>
> Hans
>
> > + </row>
> > </tbody>
> > </tgroup>
> > </table>
> >