Change subtitle color on a Mac

[okizen]

How do I change the subtitle color of an mkv video on a Mac?

[videobruger]

Start by telling the format of the subtitles and what program is used for playing the video.

[okizen]

Oh sorry. The subtitle format is vobsub and I'd like to play the video on my tv and on vlc on my laptop.

[videobruger]

I'm not a MAC user so I'm afraid the only way I can think of is somewhat cumbersome.

If you don't already have it install MKVToolnix. Assuming your video has a video-, audio- and subtitle track extract the idx/vobsub with

mkvextract tracks color.mkv 2:test.srt

Now it would be easist if you already has an idx file with the colors you want then you could replace the upper part of the extracted idx file:


[Attachment 46916 - Click to enlarge]

Else you need to edit the color palette


[Attachment 46917 - Click to enlarge]

This may involve some trial and error. The color palette has 16 entries of which 4 is used in the subtitle: BG Background (often transparent), TXT (which I ussume is the one you want to change), OUT outline often black, ANT antialiasing often grey if used.


[Attachment 46918 - Click to enlarge]

Unfortunately there are no rules for how these colors are mapped to the palette but it is most often the first 4 entries.

If you have access to a Windows PC you could use BDSup2Sub++ to visually edit the colors in the idx/vobsub.

After editing mux the video with the new idx/vobsub using MKVToolnix GUI.

[okizen]

Thanks a lot, videobruger. I'll definitely give your method a try.