[FFmpeg-user] mpeg2 filesize reduction: reduce video, enhance audio, codec selection

Carl Eugen Hoyos cehoyos at ag.or.at
Wed May 7 11:51:24 CEST 2014

Beeblebrox <zaphod <at> berentweb.com> writes:

> ffmpeg -i concat:M2U00210.MPG\|M2U00211.MPG\|M2U00212.MPG\| 
> -c copy video1.mpg
> but is there any difference in resulting quality vs "cat"?

I don't understand (protocols do not imply quality settings), 
but the concat protocol does exactly the same as the cat 
command (it is just meant to spare you the typing).

> Final ffmpeg command looks a little better:
> "$ ffmpeg -i video1.mpg -c:a libfaac 'volume=2' 
> -c:v libx264 -preset slow -crf 28 video1-out.mp4"

> Is libfaac the right choice?

libfdk is the recommended aac encoder.

Carl Eugen

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