[MEncoder-users] x264 2-pass, FAAC, smearing

[GM]

Using those options, you are messing up quality.
This is because the first pass will have wrong bitrate distribution when
applied to your second pass.

This means that on scene changes 1-2 frames will be really blurry. You
might not notice it unless you skip frame-by-frame and it might happen
with only some videos, but it will be there due to how 2-pass encoding
works.

On Thu, 2009-01-15 at 08:17 -0500, John Ratliff wrote:
> GM wrote:
> > Yes, I have.
> >
> > -nosound screws up audio sync, because obviously sound is not processed.
> > harddup is ALWAYS used, since I remux the video later anyway, but this
> > is of no concern at all here, because the messed up video comes out of
> > mencoder, not because of remuxing later.
> 
> Please note I am an encoding novice and know next to nothing at all... 
> I'll just let you know what works for me. I'm reencoding DVD's into 
> matroska with x264 video and ogg audio. I use external ogg encoder, and 
> mencoder for x264. I use -nosound for first pass, then oac copy for 
> second. Audio will desync for me if I use nosound for both passes. I 
> can't remember if I got bad result with oac copy for both or not, but I 
> do remember the audio desync with nosound for both. I use mkvmerge to 
> build matroska container.
> 
> --John Ratliff
> 
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