[FFmpeg-user] The Creating A Screencast command has been modified Ubuntu 10.04 FFmpeg version SVN-r0.5.1-4:0.5.1-1ubuntu1.3(What's the new convention)

dE . de.techno at gmail.com
Tue Jan 24 10:00:22 CET 2012

On 01/22/12 01:00, maujhsn wrote:
> ubuntu at ubuntu:~$ ffmpeg -f alsa -ac 2 -i pulse -f x11grab -r 30 -s 1024x720
> -i :0.0 -qscale 1 -acodec pcm_s161e  -vcodec libx264 -vpre
> lossless_ultrafast -threads 0 output.mkv
> I get this code: Unknown encoder 'libx264'
> Can anybody tell me the new convention?

-vpre is sort of obsolete.

Use '-preset ultrafast' instead. If you want lossless, use '-x264opts 
qp=0' in addition and remove -qscale 1, it has no affect.

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