2

I'm looking for a way that burning subtitles to mp4 videos with ffmpeg.

I used the following command to convert and burn subtitle but its not worked !

ffmpeg -i subtitle.vtt subtitle.srt
ffmpeg -i video.mp4 -i subtitle.vtt -c copy -c:s mov_text out.mp4
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Stream #1:0 -> #0:2 (webvtt -> mov_text)
Press [q] to stop, [?] for help
[mp4 @ 0x80aee0] Encoder did not produce proper pts, making some up.
frame= 2692 fps=1139 q=-1.0 Lsize=    2416kB time=00:01:29.83 bitrate= 220.3kbits/s
video:1264kB audio:1053kB subtitle:2 global headers:0kB muxing overhead 4.178210%
3

Your command is muxing the subtitles (putting into the video file, so client can turn them on and off); not burning them to the video.

Since you want to burn them into the video, you should first convert your .vtt to .ass (note: your ffmpeg must have been built with libass):

ffmpeg -i subtitle.vtt subtitle.ass

Then burn the subtitles to the video:

ffmpeg -i video.mp4 -vf ass=subtitle.ass out.mp4

Now out.mp4 will have burned subtitles.

  • I used these commands but still subtitle does not show up – unbl0ck3r Dec 27 '16 at 16:25
  • Did you get any errors? Are you sure your vtt subtitles are proper? I just tested the commands again and it worked for me. – Iskar Dec 28 '16 at 8:07
  • I download a auto generated subtitle from youtube video as webvtt format(using youtube-dl). then with ffmpeg -i subtitle.vtt subtitle.ass convert in and after that burn subtitle to video. but thats not worked. – unbl0ck3r Dec 28 '16 at 13:24

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.