[MEncoder-users] A/V sync problems

[Grozdan Nikolov]

On Friday 03 August 2007 16:31, Nico Sabbi wrote:
> Grozdan Nikolov wrote:
> >Conclusion: it seems that when doing a inverse telecine process and when
> > using the -nosound option for the first pass in 2-pass encoding, mencoder
> > slightly breaks A/V sync. I guess this has to do with frame
> > skipping/duplicate frames
>
> with -nosound there's no sync to keep into account, so why
> did you remove sound in the first place?

hmm, maybe because I heard somewhere that it will speed up encoding for the 
first pass as there will be no audio to encode. I didn't knew that it could 
lead to A/V desync... lesson learned now ;)

> First and second pass should always be encoded with mostly the same
> parameters in order to always skip or duplicate the same amount of frames
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