![]() var_stream_map "v:0,agroup:audio,ccgroup:cc a:0,agroup:audio,language:ger,ccgroup:cc a:1,agroup:audio,language:eng,ccgroup:cc a:2,agroup:audio,language:fra,ccgroup:cc a:3,agroup:audio,language:spa,ccgroup:cc" \ ![]() cc_stream_map "ccgroup:cc,instreamid:CC1,language:ger ccgroup:cc,instreamid:CC2,language:eng ccgroup:cc,instreamid:CC3,language:fra ccgroup:cc,instreamid:CC4,language:spa" \ i LFS_000420_heidelberg4sprachen_spa.vtt \ i LFS_000420_heidelberg4sprachen_fra.vtt \ i LFS_000420_heidelberg4sprachen_eng.vtt \ i LFS_000420_heidelberg4sprachen_ger.vtt \ Here's what I've been trying to do: ffmpeg -i LFS_000420_heidelberg4sprachen.mp4 \ Mapping the separate vtt files into the mix doesn't seem to work. This works fine, including different variant streams for the languages. I'm resizing the file and turning it into transport segments and the HLS playlists using the HLS muxer of FFmpeg 4.2 (Version from the Fedora 32 repos).
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