[MEncoder-users] B-frames and GOP with MPEG-2 for DVD

Nicolas Hesler nicolas.hesler at sheridanc.on.ca
Tue Jun 12 22:52:39 CEST 2007


Justin Randall wrote:
> I understand why you don't use B-frames on MEncoder because
> support is b0rked as far as I know (has this changed?) but for x264
> MPEG-4 AVC etc. B-frames are great!  If you're encoding for Quicktime
> with x264 I know it supports up to 2 B-frames, and generally I encode
> with 3 B-frames.  It's great for compression and does not sacrifice
> quality at all (I can't speak for XviD or ASP compression, but I know
> from experience that B-frames on x264 and AVC compression is awesome).
>   

How is support broken ??   I certainly can't seem to create a mpeg2 with 
b frames with
MEncoder 1.0rc1-4.1.2.   Am I doing something wrong?  It continually 
crashes mencoder when I try to use vmax_b_frames=2:vb_strategy=2.





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