[FFmpeg-devel] tkhd transformation matrix in mov is ignored except for width/height and scaling

Samuel Gendler sgendler
Fri Nov 6 18:14:22 CET 2009


On Wed, Nov 4, 2009 at 6:59 AM, Michael Niedermayer <michaelni at gmx.at>wrote:

> On Tue, Nov 03, 2009 at 07:17:14AM -0800, Samuel Gendler wrote:
> > On Mon, Nov 2, 2009 at 12:22 PM, Michael Niedermayer <michaelni at gmx.at
> >wrote:
> > >
> > >
> > > 1. The matrix should be put in AVStream
> > > 2. AVOutputFormat needs a new flag that indicates that a muxer is
> capable
> > > of
> > >   storing such a matrix.
> > > 3. ffmpeg should copy such matrix to the output AVStream when the
> > >   output muxer has that flag or if the flag is not set insert a
> avfilter
> > > that can
> > >   apply such matrix to all images
> > > 3b. write such avfilter
> > > 4. the mov muxer should write the matrix from AVStream into the output
> file
> > >
> > >
> > >
> > I'll see if I can't figure out how to do all of that.
>
> Note, even doing just one part of it is usefull to us!
> and one patch for each seperateable part instead of one big one is
> preferred
>
> It will be a while before I dig into it.  My hack job gets me back on
track, but I've got a tight schedule to meet over the next couple of weeks.
Then I can look into it.



More information about the ffmpeg-devel mailing list