https://lms.onnocenter.or.id/wiki/index.php?action=history&feed=atom&title=High_quality_screen_capture_with_avconv 2026-04-20T05:26:47Z Revision history for this page on the wiki MediaWiki 1.45.1 https://lms.onnocenter.or.id/wiki/index.php?title=High_quality_screen_capture_with_avconv&diff=40688&oldid=prev 2014-06-24T22:32:58Z

<p>New page: avconv -f x11grab -r 25 -s 1280x720 -i :0.0+0,0 -vcodec libx264 -pre lossless_ultrafast -threads 0 video.mkv Presets are now called .avpreset When capturing with audio, we need to spec...</p> <p><b>New page</b></p><div> avconv -f x11grab -r 25 -s 1280x720 -i :0.0+0,0 -vcodec libx264 -pre lossless_ultrafast -threads 0 video.mkv<br /> <br /> Presets are now called .avpreset<br /> <br /> When capturing with audio, we need to specify stream ID for the -pre option:<br /> <br /> avconv -f alsa -i pulse -f x11grab -r 25 -s 1280x720 -i :0.0+0,0 -acodec libfaac -vcodec libx264 &#039;&#039;&#039;-pre:0 lossless_ultrafast&#039;&#039;&#039; -threads 0 video.mkv<br /> <br /> Note that on Mint 13 -acodec pcm_s16le gives trouble in MKV container.<br /> <br /> Use -pre:0 lossless_slow when converting to .mov format.<br /> <br /> If having problems with &#039;&#039;&#039;-acodec libfaac&#039;&#039;&#039; try omitting acodec altogether. It will then use libvorbis which is fine (just not lossless).<br /> <br /> See also [[High quality screen capture with Ffmpeg]]<br /> <br /> [[Category:avconv]]</div>

Onnowpurbo