This is useful if you must parse the output. This command inspects the streams in input.mkv, but only shows the subtitle streams. Here's how you list the subtitle streams:įfprobe -v error -of json input.mkv -of json -show_entries "stream=index:stream_tags=language" -select_streams s You must use ffprobe to find which subtitles stream is where, then extract the streams you want one by one. You will get an error like "SRT supports only a single subtitles stream" or "Exactly one WebVTT stream is needed".Īs far as I know, there is no way to select only the first subtitle track of each language. ffmpeg will try to fit multiple English subtitle streams in the same. However, this fails if you have multiple tracks with the same language.
I know how to extract a single channel at time in a way like: ffmpeg -i input.mov -map 0:1 -c:a copy output.mov However this will work for the first channel only. ass file if you want a different type of subtitles. I have this file, and would be cool use ffmpeg for extract all audio channels to separate files. This command uses -map to select all English language streams ( eng), then filters out the audio and video streams, then writes the subtitles stream to a. For example, this is how you would find the English subtitles:įfmpeg -i input.mkv -map "0:m:language:eng" -map "-0:v" -map "-0:a" output.srt You can directly refer to subtitle streams with ffmpeg's -map. vtt subtitles from a video file with embedded subtitles.
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