[MEncoder-users] What's the special about the I-frames in libavcodec?

[Xi Chen]

Pepe wrote:
>
>> Try to use keyint with a lower value. May be the default (250) is too high
>> for your player. The manual suggest <=132 for a strict MPEG-1/2/4
>> compliance.
>>     
>
> I've just tried with keyint=100 and then keyint=10. Nothing changed. The same 
> result :-(
>
>   
Just a wild guess. Is it possible that your dvd player requires your 
mpeg4 files to have closed GOP? xvid defaults to cgop but lavc does not. 
Try to add -lavcopts cgop:sc_threshold=1000000000

The second option disables the scene detection since lavc does not 
support cgop with scene detection atm.