[FFmpeg-devel] [Ffmpeg-devel] [PATCH] FAQ entry for videojoining

Måns Rullgård mans
Tue Jun 5 16:56:19 CEST 2007

Michel Bardiaux wrote:
> Michael Niedermayer wrote:
>> Hi
>>>> at ffmpeg-user.
>>> And if you know the rationale for MPEG4 *not* being good for
>>> concatenation, please add that too in that patch!
>> MPEG4-ES is fine for concatenation
> Is that -vcodec mpeg4 -format m4v in ffmpegese?

Something like that.

>> MPEG4-ES in MPEG-PS is also fine
> -vcodec mpeg4 -format mpeg, right?

If memory serves, yes.

> Whatever is used for digital-TV in MPEG4 should also work, no? What is it?

Nobody uses MPEG4 part 2 for digital TV.  If they did, they'd be using
MPEG2 TS though.  And yes, it works fine to cat such files.

When MPEG2 isn't good enough, broadcasters generally use H.264.  MPEG4
never caught on for primarily two reasons: it's not significantly better
than MPEG2 at broadcast quality, and the licensing terms are insane (per
minute of content royalty fees and such).

M?ns Rullg?rd
mans at mansr.com

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