Ffmpeg mp4 to webm Code Example - Coding

ffmpeg webm to mp4

ffmpeg -i input.mkv -codec copy output.mp4

ffmpeg webm to mp4

ffmpeg -i "01 - file.webm" -crf 23 "file.mp4"

ffmpeg mp4 to webm vp8

ffmpeg  -i input.mp4  -b:v 0  -crf 30  -pass 1  -an -f webm -y /dev/null
ffmpeg  -i input.mp4  -b:v 0  -crf 30  -pass 2  output.webm

ffmpeg mp4 to webm

# lower -crf value = higher quality & larger output
ffmpeg -i input.mp4 -c:v libvpx-vp9 -crf 30 -b:v 0 -b:a 128k -c:a libvorbis output.webm

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