Monthly Archives: August 2020

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ffmpeg: Remove audio from several videos while preserving quality

18 August 2020  in Bash / GNU/Linux  tagged audio / ffmpeg by Tux

To create audio-less copies of all the .mp4 videos in a folder, execute the following:

find . -type f -name "*.mp4" -exec bash -c 'FILE="$1"; ffmpeg -i "${FILE}" -c copy -an "${FILE%.mp4}.ns.mp4";' _ '{}' \;

For a single file, the command would be:

ffmpeg -i input.mp4 -c copy -an output.mp4

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Making high quality GIF from video in Ubuntu 20.04LTS

5 August 2020  in GNU/Linux  tagged ffmpeg / gif / gif.ski / ubuntu by Tux

First install gif.ski using snap.

snap install gifski;

Then use ffmpeg to break down your video to frames:

ffmpeg -i video.mp4 frame%05d.png;

Finally use gif.ski to create your gif from the frames:

gifski -o clip.gif frame*.png;

Delete the frames if you do not need them, they will be taking a lot of space.

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