Translate a media file to a new type 1ffmpeg -formats 2ffmpeg -i ${input} ${output} Reduce video quality 1quality=20 2ffmpeg -i ${input}.mp4 -vcodec libx264 -crf ${quality} ${output}.mp4 A crf quality of 18 is high, while 24 is low quality. Convert from mkv to mp4 with a codec 1ffmpeg -i ${input}.mkv -codec copy …

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