This tutorial will show you step by step how to merge SRT subtitles with an MP4 video or movie permanently.

In linux
ffmpeg -i Movie.mp4 -vf subtitles=Movie.srt Movie2.mp4

FFmpeg will now convert the MP4 video to another MP4 video with hardcoded subtitles.

This may take a while.

These tools shift all the time stamps of a movie subtitle file. They can be used for synchronizing the subtitles to a movie when there is a slight offset between the two (this can be the case when the subtitles and the movie come from two different sources), or when there is a time scale difference (for instance if the movie and the subtitle file have different frame rates).

SubShifter currently supports the SRT file format, which is supported by most modern media players.