[MPlayer-dev-eng] Re: divx2svcd-0.5.1

[Nico Sabbi]

Andriy N. Gritsenko wrote:

>    Hi, Nico Sabbi!
>
>Sometime (on Monday, April 26 at 19:49) I've received something...
>  
>
>>>>b) it video is mpeg2 it would be nice to set  correctly the mpeg1_mpeg2 
>>>>bit, to make some programs like replex happy
>>>>        
>>>>
>>>  This may be good thing. Another thing may be changing default stream
>>>rate if stream is mpeg2.
>>>      
>>>
>>yes, and maybe disabling those  rate compliance flags in the system header
>>    
>>
>
>    Which ones exactly?
>  
>

CSPS, packet_rate_restriction, system_video_lock, pstd_buffer_size_bound
maybe no programs ever uses these fields, but setting them correctly 
(considering
that lavc doesn't follow any bitrate/buffer constraint)  doesn't hurt

>  
>
>>>>Do you have any idea why TMPG often stops demuxing mpeg files generated 
>>>>by mencoder long before the end?
>>>>        
>>>>
>>>  Hmm. Could you give me an example of such file? At least how it was
>>>generated to copy this behavior.
>>>      
>>>
>>almost any mpeg file with mpeg1video  will cause tmpg to break
>>    
>>
>
>    lavc's mpeg1video is sucks - it is not playable by most of players,
>even mplayer has problems with it due to badly formed headers in the
>video stream. Unfortunately. Sometime I wanted to make ve_fame encoder to
>make iso-compliance mpeg1 stream but I've given up later.
>
>    With best wishes.
>    Andriy.
>  
>
when I tried it I saw very bad quality; I hope it improved