[MEncoder-users] adding harddup's after the fact...

[Jarred Nicholls]

On Dec 15, 2009, at 2:54 AM, Josh Sharpe <josh.m.sharpe at gmail.com>  
wrote:

> So basically I encoded an mpeg stream without '-vf harddup' and am
> regretting it.  The file is in an AVI with h264 video and ac3 audio  
> and I'm
> trying to convert it to mp4/264/aac (so I can play it in quicktime).
>
> I've managed go get everything dumped, re-encoded and remuxed the  
> way I
> want, but I have a sync issue.  The video is going much faster than  
> the
> audio.  (Is this because all of those 0-byte frames got dropped when  
> the
> remuxing occured??)
>
> So, my original AVI file plays fine, which tells me that those 0-byte
> 'duplicate' frames must be sitting there acting like duplicates,  
> waiting to
> be blown away by the resmuxer and screwing me over...  Is there any  
> way I
> can convert all of those fake duplicate frames to hard dups **without
> re-encoding the video** so that when I do dump and remux them that  
> the sync
> issue doesn't happen?
>
> Does that all make sense?
>
> Thanks!

Use harddup always and try with '-mc 0'.  Also specify your output fps  
'-ofps'.   That should work if your original AVI is in sync.

Jarred

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