Skip to content

Instantly share code, notes, and snippets.

@muresan
Last active February 1, 2026 17:25
Show Gist options
  • Select an option

  • Save muresan/e21ff03cbadf19f6834472fe7deed3e3 to your computer and use it in GitHub Desktop.

Select an option

Save muresan/e21ff03cbadf19f6834472fe7deed3e3 to your computer and use it in GitHub Desktop.
ffmpeg-dual-audio
ffmpeg -i file1.mkv -i file2.mkv \
-map 0:v:0 \
-map 0:a \
-map 1:a \
-c copy \
-metadata:s:a:0 language=eng \
-metadata:s:a:1 language=jpn \
output.mkv
ffmpeg -i file1.mkv -i file2.mkv -i subs_eng.srt -i subs_jpn.srt \
-map 0:v:0 \
-map 0:a \
-map 1:a \
-map 2:s:0 \
-map 3:s:0 \
-c copy \
-metadata:s:a:0 language=eng \
-metadata:s:a:1 language=jpn \
-metadata:s:s:0 language=eng \
-metadata:s:s:1 language=jpn \
output.mkv
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment