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ffmpeg
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# cut video with 15s from 0s (super fast without conversion) | |
ffmpeg -ss 00:00:00 -t 00:00:15 -i [input] -c copy [output] | |
# fixed audio quality with 20% volume https://trac.ffmpeg.org/wiki/Encode/MP3 | |
ffmpeg -i input.mp3 -map 0:a:0 -filter:a "volume=0.2" -b:a 80k output.mp3 | |
# variable audio quality | |
ffmpeg -i input.mp3 -map 0:a:0 -qscale:a 7 output.mp3 | |
# compress video and keep metadata https://trac.ffmpeg.org/wiki/Encode/H.264 | |
ffmpeg -i [input] -acodec copy -c:v libx264 [-tune stillimage] -preset veryslow -movflags use_metadata_tags [output] |
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