[FFmpeg-devel] [PATCH] lavf/img2: add support to IFF images sequences

[Tomas Härdin]

On Wed, 2012-10-24 at 13:03 +0000, Paul B Mahol wrote:
> On 10/24/12, Stefano Sabatini <stefasab at gmail.com> wrote:
> > Should address trac ticket #661, not tested.
> > ---
> >  libavformat/img2.c |    2 ++
> >  1 files changed, 2 insertions(+), 0 deletions(-)
> >
> > diff --git a/libavformat/img2.c b/libavformat/img2.c
> > index 3867477..af83e74 100644
> > --- a/libavformat/img2.c
> > +++ b/libavformat/img2.c
> > @@ -29,6 +29,8 @@ typedef struct {
> >  } IdStrMap;
> >
> >  static const IdStrMap img_tags[] = {
> > +    { AV_CODEC_ID_IFF_ILBM  , "iff"},
> > +    { AV_CODEC_ID_IFF_BYTERUN1, "iff"},
> >      { AV_CODEC_ID_MJPEG     , "jpeg"},
> >      { AV_CODEC_ID_MJPEG     , "jpg"},
> >      { AV_CODEC_ID_MJPEG     , "jps"},
> > --
> > 1.7.5.4
> >
> 
> First these two codecs should be merged into one;
> second image demuxer should not use extensions to
> detect files.

+1, but that's a rather large task. Each still image codec would need a
probe function. I toyed around with JPEG, PNG, GIF and BMP probes a
while back, but I seem to have misplaced the code.

In a more general sense, is changing codec of a stream ever allowed? I'm
considering the hypothetical situation that someone mixes image types in
a sequence.

/Tomas