I'm trying to create hls playlist and multiple subtitles using ffmpeg with following command list:
ffmpeg -i video.mp4 -i sub1.srt -i sub2.srt -map 0:v -map 1:0 -map 2:0 -c:v:0 copy -c:s:0 webvtt -c:s:1 webvtt -start_number 0 -hls_time 10 -hls_list_size 0 -f hls index.m3u8
and I get this error:
Exactly one WebVTT stream is needed.
Is there a possibility to add more than one subtitle to hls playlist?