[FFmpeg-devel] [PATCH 2/3] Silicon Graphics Motion Video Compressor 1 & 2 decoder

[Peter Ross]

On Tue, Dec 18, 2012 at 05:46:30PM +0000, Paul B Mahol wrote:
> On 12/14/12, Peter Ross <pross at xvid.org> wrote:
> > Signed-off-by: Peter Ross <pross at xvid.org>
> > ---
> >  Changelog               |   1 +
> >  doc/general.texi        |   2 +
> >  libavcodec/Makefile     |   2 +
> >  libavcodec/allcodecs.c  |   2 +
> >  libavcodec/avcodec.h    |   2 +
> >  libavcodec/codec_desc.c |  14 +++
> >  libavcodec/mvcdec.c     | 287
> > ++++++++++++++++++++++++++++++++++++++++++++++++
> >  7 files changed, 310 insertions(+)
> >  create mode 100644 libavcodec/mvcdec.c
> >
> 
> [...]
> 
> > +
> > +static int decode_mvc1(AVCodecContext *avctx, GetByteContext *gb, uint8_t
> > *dst_start, int width, int height, int linesize)
> 
> This and others functions are still build if one of decoders is disabled.
> Also i do not see much point in having two different codecs (they do not share
> much except init and close) in same file.

True. It is extra work then having to roll a custom extradata layout, to convey
both the version and BottumUp flag.

The SGI tools libdmedia / dmconvert ''may'' be able to store mvc1 & mvc2 in
the QuickTime container. I dont have any samples, but will try and generate some.

-- Peter
(A907 E02F A6E5 0CD2 34CD 20D2 6760 79C5 AC40 DD6B)
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