ffmpeg commads to make your life easy

Posted on May 27, 2023

Convert all mkv to mp4:

for i in *.mkv; do
    ffmpeg -i "$i" -codec copy "${i%.*}.mp4"
    done

Convert webm to mp4:

for i in *.webm; do
    ffmpeg -fflags +genpts -i "$i" - r 24 "${i%.*}.mp4"
        done

ffmpeg -fflags +genpts -i 1.webm -r 24 1.mp4

Convert audio m4a mp3:

for f in *.m4a; do ffmpeg -i "$f" -codec:v copy -codec:a libmp3lame -q:a 2 "${f%.m4a}.mp3"; done

Merge multiple file under a directory into one:

for f in *.mp4; do echo "file '$f'" >> videos.txt; done

ffmpeg -f concat -i videos.txt -c copy output.mp4

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