I would like to make a subtitle file to be a part of an mp4 video file, so that I don't have to deal with two separate files.
I imagine two ways:
- Make the subtitle an intrinsic part of the video. This will require video re-encoding.
- Make the subtitle a separate stream, but still embedded in the same video file. This is far more preferable, especially because I can disable it (unlike the other approach), or even play with the font type/size.
How do I do things the 2nd way? It would also be kool to know how the 1st approach works.