On Tue, 2016-07-12 at 16:16 +0800, Wu-Cheng Li (李務誠) wrote: > 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)? > > We are working on this. Will upstream soon. > > 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. That's right in MT8173 platform. best regards, Tiffany > > 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 devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
