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

Nico Sabbi nicola_sabbi at fastwebnet.it
Tue Jun 12 23:02:21 CEST 2007


Nicolas Hesler wrote:

>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.
>
>  
>
we need a gdb backtrace for cases like this



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