[MEncoder-users] Why the duration becomes longer after converting?

[belcampo]

wisent wrote:
> Hi, all
>  
> I want to convert a m2ts format video to h264 format using mencoder.exe, but every time the duration of the converted video is about twice than the source file. The command line that I used is like:
>  
> mencoder.exe test.m2ts -o test.h264 -mc 0 -af volnorm,lavcresample=44100:channels=2 -vf scale=320:240,harddup -ofps 29.97 -ovc lavc -lavcopts vcodec=libx264 -oac copy -srate 44100
>  
> Why does this happen? Is there anything wrong with the command line? 
Not wrong if one doesn't know what the source is. But doubling I think 
is caused by the fact that the source is interlaced. Your mencoder 
version doesn't detect that and thinks the source is 59.94fps
> Any suggestions will be greatly appreciated.
> Thanks!
>  
>  
> -Wisent
>  
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