Use ffmpeg to add text subtitles [closed]

by

NOTE: This solution adds the subtitles to the video as a separate optional (and user-controlled) subtitle track.

ffmpeg -i infile.mp4 -i infile.srt -c copy -c:s mov_text outfile.mp4

-vf subtitles=infile.srt will not work with -c copy

The order of -c copy -c:s mov_text is important. You are telling FFmpeg:

  1. Video: copy, Audio: copy, Subtitle: copy
  2. Subtitle: mov_text

If you reverse them, you are telling FFmpeg:

  1. Subtitle: mov_text
  2. Video: copy, Audio: copy, Subtitle: copy

Alternatively you could just use -c:v copy -c:a copy -c:s mov_text in any
order.

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