[mythtvnz] VLC, DVB and Freebox

[Nick Rout]

On 11/5/07, Sam Hadley-Jones <sam at samborambo.ws> wrote:
>
> > Date: Sat, 3 Nov 2007 17:50:29 +1300 (NZDT)
> > From: "Steven Ellis" <steven at openmedia.co.nz>
> > Subject: [mythtvnz] VLC, DVB and Freebox
> > To: mythtvnz at lists.linuxnut.co.nz
> > Message-ID:
> >       <
> 32954.192.168.0.254.1194065429.squirrel at webmail.stevencherie.homelinux.net
> >
> >
> > Content-Type: text/plain;charset=iso-8859-1
> >
> > Ok the aim is to be able to record from all of the freeview channels at
> > the same time via the mythtv freebox plugin. This is an interim solution
> > until we get working multirec support in the stable tree.
> >
> > I'm working off 0.20.1 + fixes so the freebox support only allows for
> rtsp
> > streams hence the slightly more complicated solution. Hopefully someone
> on
> > list can work out a way to do this a bit better.
> >
> > Part 1 - Extract DVB streams using VLC and pass as UDP Unicast streams
> to
> > localhost.
> >
> > Tried multicast here but it hosed my wireless connection big time. The
> > following provided me with three UDP streams over UDP.
> >
> > vlc -v --color --ttl 12  --ts-es-id-pid --programs=1025,1035,1036,1904
> dvb: \
> > --dvb-frequency=12483000 --dvb-srate=22500000 --dvb-voltage=18  \
> > --sout-standard-access=udp --sout-standard-mux=ts --sout \
> > '#duplicate{dst=std{access=udp,dst=127.0.0.1:5556
> ,sap,name="MaoriTV"},select="program=1025",dst=std{access=udp,dst=
> 127.0.0.1:5557
> ,sap,name="TVNZ6"},select="program=1904",dst=std{access=udp,dst=
> 127.0.0.1:5558,sap,name="TVONE"},select="program=1035"}'
> >
> > These can be tested with VLC by typing
> >
> > vlc udp://@:5556
> >
> > Part 2 - Provide the UDP streams as rtsp streams via a second instance
> of VLC
> >
> > This is the annoying bit. Can't work out how to get a single VLC
> instance
> > to control both sets of streams. First I create a file called
> vlm.udp.conf
> > containing
> >
> > new maori vod enabled
> > setup maori mux mp2t
> > setup maori input udp://@:5556
> >
> > new tvnz6 vod enabled
> > setup tvnz6 mux mp2t
> > setup tvnz6 input udp://@:5557
> >
> > new tvone vod enabled
> > setup tvone mux mp2t
> > setup tvone input udp://@:5558
> >
> > And then start vlc as follows
> >
> > vlc --ttl 12 -v --vlm-conf vlm.udp.conf --rtsp-host 0.0.0.0:5555
> >
> > Now I can connect to this host from anywhere on the network using VLC to
> > grap an RTSP stream
> >
> > vlc rtsp://mythtest:5555/maori
> > vlc rtsp://mythtest:5555/tvone
> >
> > >From this I can now setup a freebox channel list.
> >
> > So first up - has anyone else tried this, and how well does it work for
> you?
> >
> > Secondly anyone played with VLC enought to find a way to just use a
> single
> > instance.
> >
> > Thirdly - An ideal VLC solution would be to use the duplicate stream
> > features within a VLM config, but that doesn't appear to be possible.
> >
> > Steve
> >
> > --------------------------------------------
> > Steven Ellis - Technical Director
> > OpenMedia Limited - The Home of myPVR
> > email   - steven at openmedia.co.nz
> > sales   - sales at openmedia.co.nz
> > support - support at openmedia.co.nz
> > website - http://www.openmedia.co.nz
>
> Steve,
>
> I had this working a few weeks ago. VLC worked well in one instance with
> both transports but I didn't go as far as setting up mythtv with the m3u
> playlist. The reason I didn't pursue it was that, with VLC running and
> no one connected, the CPU usage was at 15% each on a AMD64 Dual Core
> 4000+. However, usage didn't increase no matter how many clients I had
> connected. Here's my config file (note that the LNB voltage is wrong -
> still haven't bothered getting up on the roof and changing the LNB
> polarity!):
>
> new TVNZ broadcast enabled
>
> setup TVNZ input "dvb://"
> setup TVNZ option dvb-adapter=0
> setup TVNZ option dvb-frequency=1183000
> setup TVNZ option dvb-voltage=13
> setup TVNZ option dvb-srate=22500000
> setup TVNZ option programs=1035,1036,1025,1903,1904
> setup TVNZ option ts-es-id-pid
> setup TVNZ mux mp2t
>
> setup TVNZ output
>
> #duplicate{dst=standard{access=udp,mux=ts,url=localhost:1231,sap,group="Freeview",name="TVONE"},select="program=1035",dst=standard{access=udp,mux=ts,url=localhost:1232,sap,group="Freeview",name="TVTWO"},select="program=1036",dst=standard{access=udp,mux=ts,url=localhost:1233,sap,group="Freeview",name="MAORI"},select="program=1025",dst=standard{access=udp,mux=ts,url=localhost:1234,sap,group="Freeview",name="TVNZSE"},select="program=1903",dst=standard{access=udp,mux=ts,url=localhost:1235,sap,group="Freeview",name="TVNZ6"},select="program=1904"}
>
> new Canwest broadcast enabled
>
> setup Canwest input "dvb://"
> setup Canwest option dvb-adapter=1
> setup Canwest option dvb-frequency=1156000
> setup Canwest option dvb-voltage=13
> setup Canwest option dvb-srate=22500000
> setup Canwest option programs=1920,1921,1929,1930
> setup Canwest option ts-es-id-pid
> setup Canwest mux mp2t
>
> setup Canwest output
>
> #duplicate{dst=standard{access=udp,mux=ts,url=localhost:1236,sap,group="Freeview",name="TV3"},select="program=1920",dst=standard{access=udp,mux=ts,url=localhost:1237,sap,group="Freeview",name="C4"},select="program=1921",dst=standard{access=udp,mux=ts,url=localhost:1238,sap,group="Freeview",name="RNZN"},select="program=1929",dst=standard{access=udp,mux=ts,url=localhost:1239,sap,group="Freeview",name="RNZC"},select="program=1930"}
>
> control Canwest play
> control TVNZ play


Ahhh I see you are ouputing to UDP, whereas the current stable myth (with
the freebox tuner) wants rtsp. I have had trouble getting vlc to output the
dvb stream to rtsp, hence Stephen's double use of vlc.

The newer iptv tuner (in trunk) should accept a wider variety of inputs.
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