Difference between revisions of "High quality screen capture with Ffmpeg"
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The settings will be remembered until we change them back. | The settings will be remembered until we change them back. | ||
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== References == | == References == | ||
Revision as of 20:01, 30 August 2010
Capture without audio:
ffmpeg -f x11grab -r 25 -s 1280x720 -i :0.0+0,48 -vcodec libx264 -vpre lossless_ultrafast -threads 0 video.mkv
Compress and convert to MP4 format (Youtube ready):
ffmpeg -i video.mkv -vcodec libx264 -vpre hq -crf 22 -threads 0 video.mp4
Lower -crf gives higher quality.
For including audio:
ffmpeg -f alsa -ac 2 -i pulse -f x11grab -r 30 -s 1024x768 -i :0.0 -acodec pcm_s16le -vcodec libx264 -vpre lossless_ultrafast -threads 0 output.mkv
In order to make ffmpeg capture audio from other applications:
- Start the ffmpeg capture (it just has to run)
- Start pavucontrol
- In the Recording tab, ffmpeg should be visible and here we can choose between input and monitor
The settings will be remembered until we change them back.
Note: This does not work with Java running in firefox.
References
- How to do Proper Screencasts on Linux Using Ffmpeg: http://verb3k.wordpress.com/2010/01/26/how-to-do-proper-screencasts-on-linux/
- https://bugs.launchpad.net/ubuntu/+source/ffmpeg/+bug/305286
