[FFmpeg-devel] [PATCH]Allow QuickTime rawvideo tag in avi

[Reimar Döffinger]

On Wed, Dec 14, 2011 at 05:22:40PM +0100, Michael Niedermayer wrote:
> i think someone once said there where fourccs that differed in meaning
> between containers
> i cant name one though without checking ...

It depends on what qualifies, but mov demuxer returns sometimes
mp4a/mp4v for basically _all_ audio/video streams whereas in other
containers it stands for AAC and MPEG-4 ASP.
Though I'd rather consider this a case of the mov demuxer writing
nonsense into codec_tag.