[FFmpeg-devel] [PATCH] MPEG-TS demuxer: Report 4cc in codec_tag field instead of SMTPE RID

Reimar Döffinger Reimar.Doeffinger
Mon Aug 31 20:51:00 CEST 2009

On Mon, Aug 31, 2009 at 11:31:32AM -0700, Baptiste Coudurier wrote:
> On 8/31/2009 10:42 AM, M?ns Rullg?rd wrote:
> > The correct solution is to make the MPEG-TS demuxer figure out the correct
> > codec_id value based on all available information.  Then apps will not
> > need to care about codec_tag.
> Exactly, and that's what is done. If codec is not determined or not 
> known by libavformat, codec_tag can help application determine format.
> Assuming codec based on fourcc has been proven deficient many times.

Of course. If you verified and say it does a sensible thing that's fine
by me. I just saw quite some nonsense in my tests with DVB-T, but maybe
that was due to bad reception or I messed up something else, no idea.
If I ever come over it again I'll try to get you some samples.

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