[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)

Stefano Sabatini stefasab at gmail.com
Sat Jan 21 23:06:21 CET 2012

On date Saturday 2012-01-21 19:30:15 +0000, maujhsn encoded:
> 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?

Looks like you didn't compile with --enable-libx264.
ffmpeg-user random tip #22
See the capture of a video4linux device:
ffplay -s 640x480 -f video4linux /dev/video0 

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