I'm using MP4Box (command line tool) to add subtitles to mp4 movies. The language of the subtitle seems to be set using ISO 639 codes. There's no differentiation between Simplified and Traditional ...
I'm starting a tutorial video podcast and have recorded a couple of episodes. I've captioned them, and have the captions file in .srt format. However I haven't yet found a way to embed that file in ...
I'm trying to achieve the following: I have an mp4 file with a single stream, for which I created an .ass file (it is important that the styling and positions in .ass are preserved when ...