On Mon, Jul 11, 2016 at 10:56 AM, tiffany lin <tiffany.lin@xxxxxxxxxxxx> wrote: > 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? Decoder hardware produces MT21 (compressed). Image processor can convert it to a format that can be input of display driver. Tiffany. When do you plan to upstream image processor (mtk-mdp)? > > It can be as input format for encoder, MDP and display drivers in our > platform. I remember display driver can only accept uncompressed MT21. Right? Basically V4L2_PIX_FMT_MT21 is compressed and is like an opaque format. It's not usable until it's decompressed and converted by image processor. > 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> >> > > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-media" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
