ffmpeg - Subtitles - Check if ffmpeg supports manipulating subtitles

ffmpeg uses the subtitles filter to add subtitles on top of the input video.

• The subtitles filter requires a build with libavcodec and libavformat to convert the passed subtitle files.

ffmpeg uses the libsrt library to add SRT subtitles on top of the input video.

• The libsrt library is a portable subtitle renderer for the SRT subtitle format.
• It converts the input subtitle file to an SRT file.

ffmpeg uses the subtitles filter and the libass library to add ASS subtitles on top of the input video.

• The libass library is a portable subtitle renderer for the ASS subtitle format.
• It converts the input subtitle file to an ASS file.

ffmpeg —version

returns:

ffmpeg version 6.1.1-3ubuntu5 Copyright (c) 2000-2023 the FFmpeg developers
...
--enable-libass
...

ffmpeg —version

returns:

ffmpeg version 6.1.1-3ubuntu5 Copyright (c) 2000-2023 the FFmpeg developers
...
--enable-libsrt
...