Text output must be selected in order for it to be converted to other text formats, like, in this instance, srt. Libzvbi_teletextdec can decode that, and output in two formats, either "image" output or "text" output. Vbi teletext is a format specification that allows for including text (characters) and a few basic images as metadata between video frames of a broadcast. Stream #0:17 -> #3:0 (dvb_teletext (libzvbi_teletextdec) -> subrip (srt)) Your FFmpeg needs to be configured with -enable-libzvbi for this to work, and results in something like this: To convert to srt from dvb_teletext.įfmpeg -txt_format text -i input_file out.srt You can extract or convert those subtitles. FFmpeg can "read" and/or "extract" subtitles from embedded subtitle tracks.įor instance, if you run ffmpeg -i and you see something like:
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