[FFmpeg-user] Worse quality than mencoder

James Darnley james.darnley at gmail.com
Mon Nov 24 15:30:01 CET 2014

On 2014-11-24 15:11, n32 at email.cz wrote:
> Hi all,
> I used these commands to encode my videos:
> for pass in 1 2; do
>   mencoder -oac mp3lame -lameopts cbr:br=128 -ovc x264 -x264encopts pass=$
> pass:preset=veryslow:fast_pskip=0:tune=film:frameref=15:bitrate=1000 -o out.
> avi in.avi
> done
> I wanted to change to ffmpeg because of troubles with A/V sync, so I encoded
> by these commands:
> for pass in 1 2; do
>   ffmpeg -y -i in.avi -c:a libmp3lame -b:a 128k -c:v libx264 -b:v 1000k -
> minrate:v 1000k -maxrate:v 1000k -bufsize 1835k -pass $pass -preset veryslow
> -tune film -x264-params fast_pskip=0:frameref=15 out.avi
> done

You are setting VBV options for ffmpeg and not in mencoder (and forcing
CBR at that) do I'm not surprised you get different output.

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