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s4y/ac3_downmix.txt

Last active January 9, 2019 09:22
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Convert mkv to mp4, downmix audio to stereo, keep original audio as second track
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ac3_downmix.txt
for f in *.mkv; do ffmpeg -hide_banner -y -i "$f" -c copy -c:s mov_text -map 0:v -map 0:a -map 0:a -map s -ac:a:0 2 -c:a:0 aac -disposition:a:0 none -disposition:a:1 default -movflags +faststart "${f%.mkv}.mp4" || break; done
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