- Move 720p files to 720p dir
- Move 1080p files to 1080p dir
Check which track you need to select:
mkvmerge -i myfile.mkv | grep audio
You'll get something like this:
Track ID 1: audio (A_AAC)
Track ID 2: audio (A_AAC)
Set filetype and number:
export F_TYPE=aac
export F_NUMBER=2
Extract audio tracks:
find ./720p -type f -name *.mkv -exec basename {} \; | while read i; do mkvextract tracks "720p/$i" $F_NUMBER:"sound/${i%.*}".$F_TYPE; done
Mux audio tracks to 1080p mkv files:
find ./1080p -type f -name *.mkv -exec basename {} \; | while read i; do mkvmerge -o "1080pRUS/${i}" "1080p/${i}" "sound/${i%mkv}$F_TYPE" ; done
DON'T FORGET THAT FILES SHOULD HAVE SAME NAME. For now had to rename manually