Removing Audio Track & Adding Subtitle for Multiple Files at Once

[MohamedYousri]

Hello All,

The default audio track is the English one, I want to change it to Japanese and removing the English track.

Also i want to add the Arabic subtitle files i already have.

Is there anyway to do this to all the videos at once since it's very very hard to do it manually for every file.

Thanks and appreciated in advance

[pcspeak]

The default audio track is the English one, I want to change it to Japanese and removing the English track.

If the order of the audio tracks on all you videos does NOT change:
e.g.
1. en
2. ja
3. es
4. etc

Then a batch file can be written one way.
If the order DOES change then there is the need to find the --track-order.

Also i want to add the Arabic subtitle files i already have.

What format are the subtitles in? (.srt, .ass, .vtt, etc)
Are they always the same format?

Cheers.

[MohamedYousri]

The default audio track is the English one, I want to change it to Japanese and removing the English track.

If the order of the audio tracks on all you videos does NOT change:
e.g.
1. en
2. ja
3. es
4. etc

Then a batch file can be written one way.
If the order DOES change then there is the need to find the --track-order.

Also i want to add the Arabic subtitle files i already have.

What format are the subtitles in? (.srt, .ass, .vtt, etc)
Are they always the same format?

Cheers.

ASS Subs

first audio always English , 2nd Javanese

[pcspeak]

Hi.
Output goes in the sub-folder New\
Your path to mkvmerge.exe may be different.

@echo off
if not exist New\ md New
for %%a in ("*.mkv") do "C:\Program Files\MKVToolNix\mkvmerge.exe" --output "New\%%a" --audio-tracks 2 --language 0:und --language 2:fr --track-name 2:Commentary "%%a" --sub-charset 0:ISO-8859-6 --language 0:ar "%%~na.ass" --track-order 0:0,0:2,1:0
pause

If the subtitles come out incorrect, try removing --sub-charset 0:ISO-8859-6 from the command.
Your .ass subs may have a different sub-charset within the file.
Cheers.

[pcspeak]

I made a couple of assumptions.

1. You're working with MKV files.
2. You knew to have matching video and subtitle file names.
e.g.
My Great Video.mkv
My Great Video.ass

So, I changed my batch file to do checking.

@echo off
if not exist New\ md New
for %%a in ("*.mkv") do if not exist "%%~na.ass" (
	echo "%%a" - Matching "%%~na.ass" not found &pause
	) else (
	"C:\Program Files\MKVToolNix\mkvmerge.exe" --output "New\%%a" --audio-tracks 2 --language 0:und --language 2:fr --track-name 2:Commentary "%%a" --sub-charset 0:ISO-8859-15 --language 0:ar "%%~na.ass" --track-order 0:0,0:2,1:0
	)
echo Press any key to Exit. &pause>nul

The part above about '--sub-charset 0:ISO-8859-6' still applies.

Cheers