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marcduiker/ffmpeg_video_for_twitter.md

Last active April 7, 2024 19:35
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FFmpeg command for creating video for Twitter
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ffmpeg_video_for_twitter.md

Convert pngs to mp4

This FFmpeg command reads images named frame_[4 char digit].png and converts it to an mp4 using the h264 encoding which Twitter accepts. The bitrate is set to 5M to reduce blocking as much as possible while keeping the size small.

ffmpeg -framerate 10 -i frame_%04d.png -c:v h264_qsv -b:v 5M video.mp4

Convert and scale an existing mp4 to 1080:

ffmpeg -i input.mp4 -c:v h264_qsv -vf: scale=1080:-1 -b:v 5M output.mp4

Convert infinite looping gif to limited looping mp4 (no scaling)

ffmpeg -i input.gif -c:v h264_qsv -filter_complex loop=loop=<NrOfLoops>:size=<TotalFrames>:start=<FramesToSkip> -b:v 5M output.mp4

Extract a frame from a video

ffmpeg -i input.mp4 -vf "select=eq(n\,65)" -vframes 1 output.png

@khlorghaal
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if it complains about MFX error, remove _qsv from h264
twitter still wont accept it though, i think bframes need sanitized somehow especially if converting from webm

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