[MPlayer-dev-eng] [PATCH] fix 4xm playback (bugzilla 882)

[Roberto Togni]

On Sun, 26 Aug 2007 00:05:55 +0200
Roberto Togni <rxt at rtogni.it> wrote:

> Hi all,
>  this patch fixes the regression to 4xm playback after the latest
> changes to ffmpeg.
> 
> FFmpeg now passes some data from 4xm lavf demuxer to 4xv lavc video
> decoder using codec_tag. Since MPlayer does not always pass codec_tag
> unchanged from demuxer to video decoder, the decoding fails even after
> fixing the usual codec_id<->fourcc matching.
> 
> The patch move the data from codec_tag to extradata in demuxer_lavf,
> and then writes it again to codec_tag in vd_ffmpeg.
> This should also allow streamcopy to a different container (untested).
> 
> 
> A better fix probably would be changing ffmpeg so that
> is uses extradata to pass codec version for 4xm. 
> 
> 
> For some samples (like aitd-daddy.4xm) there is a big A/V desync (video
> too slow) but that issue was already there before the latest ffmpeg
> changes to 4xm.
> 
> 

Applied the codecs.conf part, the extradata handling changed in ffmpeg.

Ciao,
 Roberto

-- 
Better is the enemy of good enough.