Add srt subtitles to mp4 files with ffmpeg

Step 1

Go to the directory where your video files are.

Step 2

Make sure you have the desired subtitle files ( `.srt` ) and that they have the same filename as the source video files. So, if you have videofile_01.mp4, you should have videofile_01.srt.

Step 3

Make sure ffmpeg is installed.

Step 4

Copy the below script to a file, for instance: `add_subtitles.sh` and modify the file properties to make it executable.

chmod +x add_subtitles.sh

#!/bin/bash
for i in ./*.mp4
  do
    ffmpeg -i "$i" -i "${i%.*}.srt" -c copy -c:s mov_text "added/${i%.*}-added-subtitle.mp4";
    echo -e "${1} converted successfully ${i%.*}-added-subtitle.mp4";
  done
                shell

Step 5

Execute the script by running add_subtitles.sh.

Step 6

Test the generated file(s) and remove the one(s) without subtitles if you want to free up some disk space.

Photo by Immo Wegmann

Add srt subtitles to mp4 files with ffmpeg

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Step 6

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