stream.hls: alternative video streams

[enzanki-ars]

Feature Request

• [X] This is a feature request and I have read the contribution guidelines.
• [X] I am using the latest development version from the master branch.

Description

streamlink does not handle streams with alternate video streams.

> streamlink https://vr.fcf.io/YBVR/LIVE/live.m3u8
[cli][info] Found matching plugin hls for URL https://vr.fcf.io/YBVR/LIVE/live.m3u8
Available streams: drone_1, drone_1_alt2

This should show 8 different video feeds with qualities each.

Additional comments, etc.

Example playlist: https://vr.fcf.io/YBVR/LIVE/live.m3u8

#EXTM3U
#EXT-X-VERSION:6
#EXT-X-INDEPENDENT-SEGMENTS


#EXT-X-MEDIA:TYPE=AUDIO,URI="fcfliveq_1000-256.m3u8",GROUP-ID="audio",LANGUAGE="en",NAME="South_End_zone",AUTOSELECT=YES,CHANNELS="2"
#EXT-X-MEDIA:TYPE=AUDIO,URI="fcfliveq_1000-256.m3u8",GROUP-ID="audio",LANGUAGE="en",NAME="North_End_zone",AUTOSELECT=YES,CHANNELS="2"
#EXT-X-MEDIA:TYPE=AUDIO,URI="fcfliveq_1000-256.m3u8",GROUP-ID="audio",LANGUAGE="en",NAME="15_yd_defense",AUTOSELECT=YES,CHANNELS="2"
#EXT-X-MEDIA:TYPE=AUDIO,URI="fcfliveq_1000-256.m3u8",GROUP-ID="audio",LANGUAGE="en",NAME="15_yd_offense",AUTOSELECT=YES,CHANNELS="2"
#EXT-X-MEDIA:TYPE=AUDIO,URI="fcfliveq_1004-256.m3u8",GROUP-ID="audio",LANGUAGE="en",NAME="QB",AUTOSELECT=YES,CHANNELS="2"
#EXT-X-MEDIA:TYPE=AUDIO,URI="fcfliveq_1005-256.m3u8",GROUP-ID="audio",LANGUAGE="en",NAME="LB",AUTOSELECT=YES,CHANNELS="2"
#EXT-X-MEDIA:TYPE=AUDIO,URI="fcfliveq_1006-256.m3u8",GROUP-ID="audio",LANGUAGE="en",NAME="Ref",AUTOSELECT=YES,CHANNELS="2"
#EXT-X-MEDIA:TYPE=AUDIO,URI="fcfliveq_1000-256.m3u8",GROUP-ID="audio",LANGUAGE="en",NAME="Drone_1",AUTOSELECT=YES,CHANNELS="2"

#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="20000k",NAME="South_End_zone",AUTOSELECT=YES,DEFAULT=YES
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="15000k",NAME="South_End_zone",AUTOSELECT=YES,DEFAULT=YES
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="10000k",NAME="South_End_zone",AUTOSELECT=YES,DEFAULT=YES
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="6000k",NAME="South_End_zone",AUTOSELECT=YES,DEFAULT=YES
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="4000k",NAME="South_End_zone",AUTOSELECT=YES,DEFAULT=YES
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="1000k",NAME="South_End_zone",AUTOSELECT=YES,DEFAULT=YES

#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="20000k",NAME="North_End_zone",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_1-20000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="15000k",NAME="North_End_zone",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_1-15000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="10000k",NAME="North_End_zone",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_1-10000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="6000k",NAME="North_End_zone",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_1-10000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="4000k",NAME="North_End_zone",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_1-10000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="1000k",NAME="North_End_zone",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_1-10000.m3u8"

#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="20000k",NAME="15_yd_defense",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_2-20000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="15000k",NAME="15_yd_defense",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_2-15000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="10000k",NAME="15_yd_defense",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_2-10000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="6000k",NAME="15_yd_defense",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_2-10000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="4000k",NAME="15_yd_defense",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_2-10000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="1000k",NAME="15_yd_defense",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_2-10000.m3u8"

#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="20000k",NAME="15_yd_offense",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_3-20000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="15000k",NAME="15_yd_offense",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_3-15000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="10000k",NAME="15_yd_offense",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_3-10000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="6000k",NAME="15_yd_offense",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_3-10000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="4000k",NAME="15_yd_offense",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_3-10000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="1000k",NAME="15_yd_offense",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_3-10000.m3u8"

#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="20000k",NAME="QB",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_4-6000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="15000k",NAME="QB",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_4-6000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="10000k",NAME="QB",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_4-6000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="6000k",NAME="QB",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_4-6000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="4000k",NAME="QB",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_4-4000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="1000k",NAME="QB",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_4-1000.m3u8"

#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="20000k",NAME="LB",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_5-6000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="15000k",NAME="LB",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_5-6000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="10000k",NAME="LB",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_5-6000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="6000k",NAME="LB",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_5-6000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="4000k",NAME="LB",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_5-4000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="1000k",NAME="LB",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_5-1000.m3u8"

#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="20000k",NAME="Ref",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_6-6000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="15000k",NAME="Ref",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_6-6000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="10000k",NAME="Ref",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_6-6000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="6000k",NAME="Ref",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_6-6000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="4000k",NAME="Ref",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_6-4000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="1000k",NAME="Ref",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_6-1000.m3u8"

#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="20000k",NAME="Drone_1",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_7-6000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="15000k",NAME="Drone_1",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_7-6000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="10000k",NAME="Drone_1",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_7-6000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="6000k",NAME="Drone_1",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_7-6000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="4000k",NAME="Drone_1",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_7-4000.m3u8"
#EXT-X-MEDIA:TYPE=VIDEO,GROUP-ID="1000k",NAME="Drone_1",AUTOSELECT=YES,DEFAULT=NO,URI="fcfliveq_7-1000.m3u8"

#EXT-X-STREAM-INF:BANDWIDTH=20000000,CODECS="avc1.42c032,mp4a.40.2",VIDEO="20000k",AUDIO="audio"
fcfliveq_0-20000.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=15000000,CODECS="avc1.42c032,mp4a.40.2",VIDEO="15000k",AUDIO="audio"
fcfliveq_0-15000.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=10000000,CODECS="avc1.42c032,mp4a.40.2",VIDEO="10000k",AUDIO="audio"
fcfliveq_0-10000.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=6000000,CODECS="avc1.42c032,mp4a.40.2",VIDEO="6000k",AUDIO="audio"
fcfliveq_0-10000.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=4000000,CODECS="avc1.42c032,mp4a.40.2",VIDEO="4000k",AUDIO="audio"
fcfliveq_0-10000.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=1000000,CODECS="avc1.42c032,mp4a.40.2",VIDEO="1000k",AUDIO="audio"
fcfliveq_0-10000.m3u8