Use MP4 if using audio compression, otherwise use Matroska. Use H.264 because of its good quality, size and compatibility. Slower, CPU-intensive, more accurate, with re-encoding $ ffmpeg -i $in -ss 00:18:20 -to 00:18:30 $out Slower, more accurate, with re-encoding $ ffmpeg -ss 00:18:20 -i $in -t 10 $out Try following commands in descending orderįast without re-encoding $ ffmpeg -i $in -ss 00:18:20 -c:v copy -c:a copy -to 00:18:30 $outĪbout as fast as previous, no re-encoding $ ffmpeg -ss 00:18:20 -i $in -c:v copy -c:a copy -t 10 $out Trim/cut video to video $ in =/path/to/input/file Whatever the original video extension is.įinally, convert to GIF $ ffmpeg -i video_source_resized.mp4 -b 2048k video.gif Online If you get an error about audio encoding, just copy/reencode the same audio $ ffmpeg -i video_source.mp4 -vf scale = -1:720 -c:a copy video_source_resized.mp4įile extension mp4 refers only to container, is not that relevant. Resize video to desired size of GIF, using only one coordinate $ ffmpeg -i video_source.mp4 -vf scale = -1:720 video_source_resized.mp4 Manually extract portion of video into a video file adding extra stuff likeĮffects, subtitles, merges with images, etc. Substitute below level Built-in Audio Analog Stereo to 70%
Open pavucontrol again, and configure using below pictures as guide To perform capture and lossless compression with x264 and Vorbis in one go,Ĭlose pavucontrol and run below to load loopback module $ pactl load-module module-loopback latency_msec =1 Screencast on Linux with PulseAudioĬhoose a PulseAudio source device $ pactl list sources Map video and audio streams into single outputįfmpeg and quodlibet/ operon Encode/compress raw video and audioĬompress raw video into Matroska container, seeĭigitizing VHS cassettes.Videos with wrong orientation in metadata.
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