Media freeze when playing "live TV" from HLS
Posted: 11 Mar 2013 19:27
The Swedish public service company SVT recently started to publish their regular channels on the web: http://www.svtplay.se/kanaler/
These are accessible with HTTP Live Streams or F4M.
F4M is a nasty format, and as VLC supports HLS I tried the HLS-stream in VLC, and it worked, but it froze after a few seconds.
I don't think that the streams are accessible from outside Sweden, but the data can be retreived from here:
Which serves the HLS stream ("playerType":"ios"), for example: http://svt10hls-lh.akamaihd.net/i/svt10 ... ?__b__=563
The m3u8 looks like this:
The index_6_av-b.m3u8, for a "random" quality looks like this:
and a few seconds later
I think it may be a result of continuously updated M3U8-playlists, as the stream is "live"..
I have not found any references in VLC sources if this should be supported or not, but wikipedia states the VLC is supporting both live and on-demand: http://en.wikipedia.org/wiki/HTTP_Live_Streaming for HLS. I'm not sure if SVTPlay is some kind of "corner case" for live HLS, but it would be nice if this was supported..
These are accessible with HTTP Live Streams or F4M.
F4M is a nasty format, and as VLC supports HLS I tried the HLS-stream in VLC, and it worked, but it froze after a few seconds.
I don't think that the streams are accessible from outside Sweden, but the data can be retreived from here:
Code: Select all
http://www.svtplay.se/kanaler/svt1?output=jsonThe m3u8 looks like this:
Code: Select all
#EXTM3U
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=563000,RESOLUTION=512x288,CODECS="avc1.66.30, mp4a.40.2"
http://svt10hls-lh.akamaihd.net/i/svt10hls_0@78142/index_3_av-p.m3u8?sd=10&rebase=on&e=1
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=563000,RESOLUTION=512x288,CODECS="avc1.66.30, mp4a.40.2"
http://svt10hls-lh.akamaihd.net/i/svt10hls_0@78142/index_3_av-b.m3u8?sd=10&rebase=on&e=1
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=240000,RESOLUTION=512x288,CODECS="avc1.66.30, mp4a.40.2"
http://svt10hls-lh.akamaihd.net/i/svt10hls_0@78142/index_1_av-p.m3u8?sd=10&rebase=on&e=1
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=240000,RESOLUTION=512x288,CODECS="avc1.66.30, mp4a.40.2"
http://svt10hls-lh.akamaihd.net/i/svt10hls_0@78142/index_1_av-b.m3u8?sd=10&rebase=on&e=1
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=347000,RESOLUTION=512x288,CODECS="avc1.66.30, mp4a.40.2"
http://svt10hls-lh.akamaihd.net/i/svt10hls_0@78142/index_2_av-p.m3u8?sd=10&rebase=on&e=1
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=347000,RESOLUTION=512x288,CODECS="avc1.66.30, mp4a.40.2"
http://svt10hls-lh.akamaihd.net/i/svt10hls_0@78142/index_2_av-b.m3u8?sd=10&rebase=on&e=1
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=986000,RESOLUTION=768x432,CODECS="avc1.77.30, mp4a.40.2"
http://svt10hls-lh.akamaihd.net/i/svt10hls_0@78142/index_4_av-p.m3u8?sd=10&rebase=on&e=1
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=986000,RESOLUTION=768x432,CODECS="avc1.77.30, mp4a.40.2"
http://svt10hls-lh.akamaihd.net/i/svt10hls_0@78142/index_4_av-b.m3u8?sd=10&rebase=on&e=1
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=1680000,RESOLUTION=1024x576,CODECS="avc1.77.30, mp4a.40.2"
http://svt10hls-lh.akamaihd.net/i/svt10hls_0@78142/index_5_av-p.m3u8?sd=10&rebase=on&e=1
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=1680000,RESOLUTION=1024x576,CODECS="avc1.77.30, mp4a.40.2"
http://svt10hls-lh.akamaihd.net/i/svt10hls_0@78142/index_5_av-b.m3u8?sd=10&rebase=on&e=1
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=2795000,RESOLUTION=1280x720,CODECS="avc1.77.30, mp4a.40.2"
http://svt10hls-lh.akamaihd.net/i/svt10hls_0@78142/index_6_av-p.m3u8?sd=10&rebase=on&e=1
#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=2795000,RESOLUTION=1280x720,CODECS="avc1.77.30, mp4a.40.2"
http://svt10hls-lh.akamaihd.net/i/svt10hls_0@78142/index_6_av-b.m3u8?sd=10&rebase=on&e=1
Code: Select all
#EXTM3U
#EXT-X-TARGETDURATION:10
#EXT-X-ALLOW-CACHE:YES
#EXT-X-VERSION:3
#EXT-X-MEDIA-SEQUENCE:136291158
#EXTINF:10.000,
http://svt12hls-lh.akamaihd.net/i/svt12hls_0@78144/segment136291158_6_av-p.ts?sd=10&rebase=on&e=1
#EXTINF:10.000,
http://svt12hls-lh.akamaihd.net/i/svt12hls_0@78144/segment136291159_6_av-p.ts?sd=10&rebase=on&e=1
#EXTINF:10.000,
http://svt12hls-lh.akamaihd.net/i/svt12hls_0@78144/segment136291160_6_av-p.ts?sd=10&rebase=on&e=1 Code: Select all
#EXTM3U
#EXT-X-TARGETDURATION:10
#EXT-X-ALLOW-CACHE:YES
#EXT-X-VERSION:3
#EXT-X-MEDIA-SEQUENCE:136291160
#EXTINF:10.000,
http://svt12hls-lh.akamaihd.net/i/svt12hls_0@78144/segment136291160_6_av-p.ts?sd=10&rebase=on&e=1
#EXTINF:10.000,
http://svt12hls-lh.akamaihd.net/i/svt12hls_0@78144/segment136291161_6_av-p.ts?sd=10&rebase=on&e=1
#EXTINF:10.000,
http://svt12hls-lh.akamaihd.net/i/svt12hls_0@78144/segment136291162_6_av-p.ts?sd=10&rebase=on&e=1
I have not found any references in VLC sources if this should be supported or not, but wikipedia states the VLC is supporting both live and on-demand: http://en.wikipedia.org/wiki/HTTP_Live_Streaming for HLS. I'm not sure if SVTPlay is some kind of "corner case" for live HLS, but it would be nice if this was supported..