[Ffmpeg-devel] DivX Incompatibility

Mike Melanson mike
Mon Jun 6 03:01:46 CEST 2005

Brian White wrote:
> Somewhere between version 1.0pre5-3.3.4 and version 1.0pre7-3.3.5 of 
> "mencoder" (sorry, but I don't know the corresponding versions of 
> ffmpeg) the tag on encoded MPEG-4 files has changed from "DIVX" to 
> "FMP4".  While mplayer has no trouble with this change, I can no longer 
> play generated files under Windoze with the stock DivX codecs.
> At the bottom of this message is a diff of the mplayer output when 
> trying to play two generated files (made at different dates).  If I use 
> a binary editor to change "FMP4" to "DIVX" in two location in the later 
> file, then it plays fine under Windoze.

	Check out the '-vtag' command line switch under FFmpeg. It will allow 
you specify fourcc.

	-Mike Melanson

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