ffmpeg hls muxer is missing codec info in master playlist when codecs are copied from input

user_1568165 0
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ffmpeg hls muxer has the option to set master playlist but the created playlist is missing the important codec information.

Example:

ffmpeg -hide_banner -i <input> -c copy -f hls -master_pl_name master.m3u8  stream.m3u8

Expected:

#EXTM3U
#EXT-X-VERSION:3
#EXT-X-STREAM-INF:BANDWIDTH=77595,RESOLUTION=1280x720,CODECS="avc1.64001f,mp4a.40.2"
stream.m3u8

Instead I get this

#EXTM3U
#EXT-X-VERSION:3
#EXT-X-STREAM-INF:BANDWIDTH=77595,RESOLUTION=1280x720
stream.m3u8

Is there a way to make ffmpeg set the codec info in playlist from the input source? It works as expected if I encode the input using libx264 but I do not want to do any expensive encoding but copy the codecs from the input.

http-live-streaming ffmpeg
1 Answers

That is because of -c copy; tell ffmpeg about video & audio CODECs and stream rates using -tag:v:0 hvc1 -b:v:0 2000k and -tag:a:0 mp4a -b:a:0 128k.

user_183331100
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