[mythtv-users] HLS Streaming Problem

Mon Oct 22 21:36:51 UTC 2012

Is the enigma actually doing HLS? It's been a while since I looked at an
enigma device but i thought it just offered up the transport stream.

I'm not sure how this differs from HLS though

Chris

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On 22 Oct 2012 21:49, "Chris Notley" <mythtv at notleyc.fastmail.fm> wrote:

> Hi there,
>
> I've been hoping to simplify the process of integrating Myth and Enigma2
> based satellite receivers.
>
> I've been experimenting with the new HTTP Live Streaming feature of Myth
> 0.26 with a hope to simplify the process of integrating an Enigma2 based
> satellite receiver.  It feels as though the solution is within reach,
> but I'm not there yet.
>
> I started by creating a m3u playlist hosted on my backend containing
> streaming links taken directly off the Enigma2 box as follows:
>
> #EXTM3U
> #EXTINF:0,1 - BBC1
> #EXTMYTHTV:xmltvid=london.bbc1.bbc.co.uk
>
> http://enigma2_ip/web/stream.m3u?ref=1:0:1:189D:7FD:2:11A0000:0:0:0:&name=BBC%201%20London
> #EXTINF:0,2 - BBC2
> #EXTMYTHTV:xmltvid=england.bbc2.bbc.co.uk
>
> http://enigma2_ip/web/stream.m3u?ref=1:0:1:189E:7FD:2:11A0000:0:0:0:&name=BBC%202%20England
>
> The above was saved in /var/www and if I opened it using VLC I could
> switch between playlist entries and successfully play either channel, so
> then tried adding it to a freshly built test box running Myth 0.26
> broadly following the guide at
> (
> http://www.mythtv.org/wiki/User_Manual:Setting_up_HTTP_Live_Streaming_Recorder
> - thanks Jean-Yves for an excellent article).  I was able to configure
> the new card, source and scan for channels, but could not watch or
> record anything.
>
> After enabling verbose logging I could see there was a problem with my
> playlist as there was an 'unhandled url' error reported when I tried to
> record/watch a channel from my playlist.
>
> To verify that the problem was definitely with the playlist I'd created,
> I added the playlist listed in the wiki page above hosted by Jean-Yves,
> which worked.  I then also re-read and noticed the comment at the start
> of the wiki entry stating that "The link provided must be to a HTTP Live
> Streaming playlist", so I then modified my playlists so the main
> playlist (as referenced in the capture card) contained the following:
>
> #EXTM3U
> #EXTINF:0,1 - BBC1
> #EXTMYTHTV:xmltvid=london.bbc1.bbc.co.uk
> http://myth026_ip/bbc1.m3u
> #EXTINF:0,2 - BBC2
> #EXTMYTHTV:xmltvid=england.bbc2.bbc.co.uk
> http://myth026_ip/bbc2.m3u
>
> The two new playlists referenced above were as follows:
>
> #EXTM3U
> #EXTINF:0,1 - BBC1
> #EXT-X-TARGETDURATION:10
>
> http://enigma2_ip/web/stream.m3u?ref=1:0:1:189D:7FD:2:11A0000:0:0:0:&name=BBC%201%20London
>
> and
>
> #EXTM3U
> #EXTINF:0,2 - BBC2
> #EXT-X-TARGETDURATION:10
>
> http://enigma2_ip/web/stream.m3u?ref=1:0:1:189E:7FD:2:11A0000:0:0:0:&name=BBC%202%20England
>
> After trying to record again, the verbose logging looked a little more
> promising, as shown in the extract below:
>
> 2012-10-22 21:08:45.895657 I  ChannelBase(1): Input #1: 'MPEG2TS'
> schan(1) sourceid(1) ccid(1)
> 2012-10-22 21:08:45.895668 I  ChannelBase(1): Current Input #1:
> 'MPEG2TS'
> 2012-10-22 21:08:45.895725 I  IPTVChan(1): Open() -- end
> 2012-10-22 21:08:45.896032 I  IPTVChan(1): GetChanInfo() -- begin
> 2012-10-22 21:08:45.896038 I  IPTVChan(1): GetChanInfo() -- locked
> 2012-10-22 21:08:45.897843 I  IPTVFeed: Open() -- begin
> 2012-10-22 21:08:45.897848 I  IPTVFeed: Init() -- begin
> 2012-10-22 21:08:45.930427 I  IPTVFeed: Init() -- adding listeners
> 2012-10-22 21:08:45.930513 I  IPTVFeed: Init() -- end 1
> 2012-10-22 21:08:45.930548 I  IPTVHLS: Open(http://myth026_ip/bbc1.m3u)
> -- begin
> 2012-10-22 21:08:45.930643 I  IPTVHLS: Open() -- end
> 2012-10-22 21:08:45.930647 I  IPTVFeed: Open() -- end
> 2012-10-22 21:08:46.384148 I  HLSBuffer: HTTP Live Streaming
> (http://myth026_ip/bbc1.m3u)
> 2012-10-22 21:08:46.384342 I  HLSBuffer: Live Playlist HLS protocol
> version: 1
> 2012-10-22 21:08:46.385151 I  HLSBuffer: Starting Prefetch for 1
> segments
> 2012-10-22 21:08:46.789217 I  HLSBuffer: Finished Prefetch (0.404079s)
> 2012-10-22 21:08:46.789476 I  HLSBuffer: pausing until we get sufficient
> data buffered
> 2012-10-22 21:08:46.890451 I  HLSBuffer: reloading HLS live meta
> playlist
> 2012-10-22 21:08:47.493555 I  HLSBuffer: Live Playlist HLS protocol
> version: 1
> 2012-10-22 21:08:47.493707 I  HLSBuffer: updated hls stream
> (program-id=0, bitrate=0) has 1 segments
> 2012-10-22 21:08:50.960231 I  sleeping for 60000 ms (interuptable)
> 2012-10-22 21:08:52.494786 I  HLSBuffer: reloading HLS live meta
> playlist
> 2012-10-22 21:08:53.096349 I  HLSBuffer: Live Playlist HLS protocol
> version: 1
> 2012-10-22 21:08:53.096397 I  HLSBuffer: updated hls stream
> (program-id=0, bitrate=0) has 1 segments
> 2012-10-22 21:08:54.975745 I  Cardid 1: max bitrate 162597 KB/min
> 2012-10-22 21:08:54.975756 I  Maximal bitrate of busy encoders is 162597
> KB/min
> 2012-10-22 21:08:58.096612 I  HLSBuffer: reloading HLS live meta
> playlist
> 2012-10-22 21:08:58.698109 I  HLSBuffer: Live Playlist HLS protocol
> version: 1
> 2012-10-22 21:08:58.698157 I  HLSBuffer: updated hls stream
> (program-id=0, bitrate=0) has 1 segments
>
> Running wireshark during the attempted recording shows an HTTP get
> request being sent to the Enigma2 box from the mythtv box, so it appears
> the structure of the playlist is sound, but the recording never seems to
> happen.
>
> I've run out of steam this evening, but any pointers would be greatly
> appreciated!!
>
> Cheers,
> Chris
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>
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