How to add subtitles to an MP4 video
Four ways to add subtitles to an MP4: a WebVTT track, an SRT file converted to WebVTT, burned-in captions with ffmpeg, and broadcast-adjacent formats ...
#WebVTT
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How to add chapters to an MP4 video
Three ways to add chapter markers to an MP4: embed them in the container, ship a WebVTT chapters track, or pass a `chapters` prop to ImageKit's Video ...