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nabeards
Level 7

HLS Alternative Audio

Does anyone know if using alternative audio groups in HLS should work? Here's an example playlist:
#EXTM3U
#EXT-X-VERSION:7
#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="aac-hi",NAME="English",DEFAULT=YES,AUTOSELECT=YES,LANGUAGE="en",URI="aac-hi/playlist.m3u8"

#EXT-X-STREAM-INF:AVERAGE-BANDWIDTH=1777603,BANDWIDTH=1775895,VIDEO-RANGE=SDR,CODECS="avc1.64001e",RESOLUTION=720x404,FRAME-RATE=23.976,CLOSED-CAPTIONS=NONE,AUDIO="aac-hi"
https://example.com/video/playlist.m3u8


When I test this (using the wonderful stream tester tool or within a feed) I get the first second or two of audio, then the audio cuts out. Video plays fine the entire time. This same playlist works correctly in Apple Safari and VLC. The audio seems to cut out right after the initial byterange in the EXT-X-MAP row loads.
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nabeards
Level 7

Re: HLS Alternative Audio

Just a quick follow up: if I use segments instead of byteranges, the first audio segment plays then no other segments play.
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