Use the subtitles filter to 'burn-in' text based subtitle formats (SRT, ASS, VTT, etc). Hardsubs Text based subtitle format inputs Same as above but use the -map option to choose the first video stream, second audio stream, and third subtitle stream: ffmpeg -i input.mkv -map 0:v:0 -map 0:a:1 -map 0:s:2 -c:v libx264 -c:a aac -c:s mov_text -metadata:s:s:0 language=eng output.mp4

Same as above but re-encode the video and audio to formats compatible with the MP4 container (H.264 video: ffmpeg -i input.mkv -map 0 -c:v libx264 -c:a aac -c:s mov_text -metadata:s:s:0 language=eng -metadata:s:s:1 language=ipk output.mp4

ffmpeg -i input.mkv -map 0 -c copy -c:s mov_text -metadata:s:s:0 language=eng -metadata:s:s:1 language=ipk output.mp4 MP4 supports streaming text format subtitles, but playback support for this among players and devices is not universal.īasic example using default stream selection behavior while stream copying the audio: ffmpeg -i input.mkv -c copy -c:s mov_text output.mp4Įxample to stream copy all of the video and audio streams, convert the all text based subtitle input streams (SRT, ASS, VTT, etc) to the streaming text format, and set the language for the first two subtitle streams.

Ffmpeg map closed captions