[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)

maujhsn 103730258b at gmail.com
Mon Jan 23 20:45:29 CET 2012


I enjoyed reading your post! Fake Outdoorsman has several great ideas!
Thanks for the tip!



On Sun, Jan 22, 2012 at 9:24 AM, Lou <lou at lrcd.com> wrote:

> On Sat, Jan 21, 2012 at 07:30:15PM +0000, 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?
>
> I think you mean the old convention because it appears that you're using
> a very old version of FFmpeg from the Ubuntu repository. By default Ubuntu
> doesn't enable libx264. You need to manually install an additional
> package to enable it. See option B here:
>
> http://ubuntuforums.org/showthread.php?t=1117283
>
> ...or you could compile FFmpeg yourself as shown in Option A.
>
> Also, remove "-qscale 1". It is superfluous with lossless encoding and
> you shouldn't use that option with libx264 anyway.
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