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sunmingtao / sample-code

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FFmpeg cheatsheet #188

Closed sunmingtao closed 3 years ago

sunmingtao commented 3 years ago

Check file info ffmpeg -i input.mp4

Convert from mkv to mp4 ffmpeg -i input.mkv -c:v copy -c:a copy output.mp4

Compress mp4 ffmpeg -i input.mp4 -b:v 1.5M -s 854x480 -preset ultrafast output.mp4

Concatenate multiple ts2 files cat *.ts > all.ts

Fix ts files ffmpeg -y -i all.ts -copyts -map 0 -c copy -ignore_unknown all-fixed.ts

Convert ts to mp4 ffmpeg -i all-fixed.ts -c:v libx264 -c:a aac all-fixed-new.mp4

Sync two folders rsync -rzv /source/ /destination/ Note: r=recursive (include folder), z=compress, v=verbose

sunmingtao commented 2 years ago

If getting

[mp4 @ 0x7fffe98ae500] track 1: codec frame size is not set
[mp4 @ 0x7fffe98ae500] opus in MP4 support is experimental, add '-strict -2' if you want to use it.
Could not write header for output file #0 (incorrect codec parameters ?): Experimental feature

Try command ffmpeg -i "13.mkv" -map 0 -c copy -c:a aac "13.mp4"