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

[Nicolas Hesler]

Nico Sabbi wrote:
> 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
>   
what does that mean?