Best Compression Methods for 'Specific' Games. Q&A

[KaktoR]

You can even rip out unused languages from videos files with ffmpeg. Unfortunatelly the audio streams are not named, therefore you have to figure out what audio stream is what language they speak.

Usage:

ffmpeg -i "C_GameEnd.mp4" -map 0:0 -map 0:X -acodec copy -vcodec copy "Processed\C_GameEnd.mp4"


-map 0:X
I don't know what number is for which language. Use MPC and change audio track to listen.

X = Audio stream ID

-map 0:0 is the main audio track (non-voice) I guess.

First -map 0:0 tells ffmpreg to not touch non-voice track (main audio like sounds and stuff)
Second -map 0:X tells ffmpeg to not touch selected voice audio track (X).
In the above example ffmpeg removes all audio tracks with the exception of 0 (main audio track) and X.
"-acodec copy" tells ffmpeg to copy audio source (it doesn't change stuff like bitrate, etc.). Just a 1-to-1 copy without changing anything.
"-vcodec copy" is the same for video source.

If you want to leave 2 voice languages, add a third -map option:
ffmpeg -i "C_GameEnd.mp4" -map 0:0 -map 0:X -map 0:Y -acodec copy -vcodec copy "Processed\C_GameEnd.mp4"