[FFmpeg-user] crf mode in libvpx

Carl Eugen Hoyos cehoyos at ag.or.at
Fri Feb 3 12:32:09 CET 2012

Boštjan Strojan <bostjan.strojan <at> gmail.com> writes:

> > What did you try? Doesn't -qscale / -vq work?
> Thanks, but nope they don't seem to do anything. No errors are
> reported, i guess switches are just silently ignored.

Hard to believe...
(I tested vorbis before posting my first mail in this thread.)

> ffmpeg -i /Users/smoke/Desktop/test.mov  -strict -2
> -acodec vorbis -b:a 64k -qscale 30 -q:v 0 -vcodec libvpx
> ./Desktop/test.webm


> Please use -q:a or -q:v, -qscale is ambiguous

While this is unrelated to your problem afaict:
Did you try to follow this hint?


> (crappy quality,

Isn't that what you expect with -qscale 30?

> no sound)

You unfortunately cut the relevant part of my mail;-(

Carl Eugen

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