IPTV/HLS/M3U: Failing to parse EXT-X-VERSION 7

[angelaschmid]

Running latest master.

Streams from Zattoo, Teleboy, famous IPTV providers in Germany/Switzerland, are failing to play in MythTV. They play fine in VLC.
MythTV does not have version 7 M3U implemented.

The stream contains the following M3U data:

#EXTM3U
#EXT-X-VERSION:7
#EXT-X-INDEPENDENT-SEGMENTS
#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="audio",NAME="deutsch",DEFAULT=YES,AUTOSELECT=YES,LANGUAGE="deu",URI="https://zba6-0-hls7-live.zahs.tv/telebielingue/t_track_audio_bw_128000000_num_0_tid_2_p_10_l_de_nd_1600_mbr_2999.m3u8?z32=MF2......"
#EXT-X-STREAM-INF:BANDWIDTH=2999000,CODECS="avc1.4d4020,mp4a.40.2",RESOLUTION=1024x576,FRAME-RATE=50,AUDIO="audio",CLOSED-CAPTIONS=NONE
https://zba6-0-hls7-live.zahs.tv/telebielingue/t_track_video_bw_2799000_num_0_tid_1_nd_1600_mbr_2999.m3u8?z32=MF2......

• MythTV version:
  Latest master

• Component:
  mythbackend

What do you see instead?

Logfile mythbackend:
StreamHandler m3u.cpp:106 (ParseVersion) - #EXT-X-VERSION is 7, but we only understand 0 through 3

Changing the source to also allow version 7, gives the following failures, and the stream does not play:

2024-08-05 10:41:19.523190 I [344463/352425] StreamHandler m3u.cpp:120 (ParseStreamInformation) - Parsing stream from https://zba6-1-hls7-live.zahs.tv/HD_s1/t_track_video_bw_7800000_num_0_tid_1_nd_1600_mbr_8000.m3u8?z32=MF2WI2L
2024-08-05 10:41:19.523196 I [344463/352425] StreamHandler m3u.cpp:132 (ParseStreamInformation) - #EXT-X-STREAM-INF: expected PROGRAM-ID=, using -1
2024-08-05 10:41:19.523200 I [344463/352425] StreamHandler m3u.cpp:157 (ParseStreamInformation) - bandwidth adaptation detected (program-id=-1, bandwidth=8000000
2024-08-05 10:41:20.590946 D [344463/352428] HLSPlaylist m3u.cpp:367 (ParseProgramDateTime) - https://zba6-1-hls7-live.zahs.tv/HD_s1/t_track_video_bw_7800000_num_0_tid_1_nd_1600_mbr_8000.m3u8?z32=MF2WI2L tag not supported: #EXT-X-PROGRAM-DATE-TIME #EXT-X-PROGRAM-DATE-TIME:2024-08-05T08:39:56.800+00:00
2024-08-05 10:41:21.603634 D [344463/352428] HLSPlaylist m3u.cpp:367 (ParseProgramDateTime) - https://zba6-1-hls7-live.zahs.tv/HD_s1/t_track_video_bw_7800000_num_0_tid_1_nd_1600_mbr_8000.m3u8?z32=MF2WI2L tag not supported: #EXT-X-PROGRAM-DATE-TIME #EXT-X-PROGRAM-DATE-TIME:2024-08-05T08:39:56.800+00:00
2024-08-05 10:41:22.615515 D [344463/352428] HLSPlaylist m3u.cpp:367 (ParseProgramDateTime) - https://zba6-1-hls7-live.zahs.tv/HD_s1/t_track_video_bw_7800000_num_0_tid_1_nd_1600_mbr_8000.m3u8?z32=MF2WI2L tag not supported: #EXT-X-PROGRAM-DATE-TIME #EXT-X-PROGRAM-DATE-TIME:2024-08-05T08:39:58.400+00:00
2024-08-05 10:44:24.025961 I [344463/358923] StreamHandler m3u.cpp:120 (ParseStreamInformation) - Parsing stream from https://zh4-11-hls7-live.zahs.tv/HD_s1/t_track_video_bw_7800000_num_0_tid_1_nd_1600_mbr_8000.m3u8?z32=MF2W
2024-08-05 10:44:24.025965 I [344463/358923] StreamHandler m3u.cpp:132 (ParseStreamInformation) - #EXT-X-STREAM-INF: expected PROGRAM-ID=, using -1
2024-08-05 10:44:24.025969 I [344463/358923] StreamHandler m3u.cpp:157 (ParseStreamInformation) - bandwidth adaptation detected (program-id=-1, bandwidth=8000000
2024-08-05 10:44:25.103642 D [344463/358926] HLSPlaylist m3u.cpp:367 (ParseProgramDateTime) - https://zh4-11-hls7-live.zahs.tv/HD_s1/t_track_video_bw_7800000_num_0_tid_1_nd_1600_mbr_8000.m3u8?z32=MF2Wtag not supported: #EXT-X-PROGRAM-DATE-TIME #EXT-X-PROGRAM-DATE-TIME:2024-08-05T08:43:00.800+00:00
2024-08-05 10:44:26.117132 D [344463/358926] HLSPlaylist m3u.cpp:367 (ParseProgramDateTime) - https://zh4-11-hls7-live.zahs.tv/HD_s1/t_track_video_bw_7800000_num_0_tid_1_nd_1600_mbr_8000.m3u8?z32=MF2Wtag not supported: #EXT-X-PROGRAM-DATE-TIME #EXT-X-PROGRAM-DATE-TIME:2024-08-05T08:43:02.400+00:00