VOD with DVB-T

Discussion about configuration and usage of VLM (a stream scheduler) within VLC.
muse
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VOD with DVB-T

Postby muse » 20 Mar 2008 23:54

Hi, i'm trying to setup a vod server with one DVB-T card to stream to various pc over a lan..
I'm using a script where each channel is defined by an entry like this

new LA7 vod enabled
setup LA7 input dvb/ts:adapter=1:frequency=786000000:inversion=0:bandwidth=8:code-rate-hp=2:code-rate-lp=0:modulation=64:transmission=8:guard=32:budget-mode=1
setup LA7 option ":program=20"

...

The channels i want to stream are all on the same transponder.
I found 2 issues:

- It works fine if i play a stream only from one pc.. i if try to access to a stream from another ip it doesn't work and vlc server shows me this message :
[00000463] [Media: LA7] dvb access error: FrontEndOpen: opening device failed (Dispositivo o risorsa occupata)
[00000463] [Media: LA7] vcdx access warning: Can't get file status for adapter=1:frequency=786000000:inversion=0:bandwidth=8:code-rate-hp=2:code-rate-lp=0:modulation=64:transmission=8:guard=32:budget-mode=1:
Nessun file o directory
[00000463] [Media: LA7] access_file access warning: adapter=1:frequency=786000000:inversion=0:bandwidth=8:code-rate-hp=2:code-rate-lp=0:modulation=64:transmission=8:guard=32:budget-mode=1: Nessun file o directory
[00000463] [Media: LA7] cdda access warning: could not open adapter=1:frequency=786000000:inversion=0:bandwidth=8:code-rate-hp=2:code-rate-lp=0:modulation=64:transmission=8:guard=32:budget-mode=1
[00000463] [Media: LA7] main access warning: no access2 module matching "dvb" could be loaded
[00000460] [Media: LA7] main input error: no suitable access module for `dvb/ts:adapter=1:frequency=786000000:inversion=0:bandwidth=8:code-rate-hp=2:code-rate-lp=0:modulation=64:transmission=8:guard=32:budget-mode=1'
[00000467] [Media: LA7] dvb access error: FrontEndOpen: opening device failed (Dispositivo o risorsa occupata)
[00000467] [Media: LA7] vcdx access warning: Can't get file status for adapter=1:frequency=786000000:inversion=0:bandwidth=8:code-rate-hp=2:code-rate-lp=0:modulation=64:transmission=8:guard=32:budget-mode=1:
Nessun file o directory
[00000467] [Media: LA7] access_file access warning: adapter=1:frequency=786000000:inversion=0:bandwidth=8:code-rate-hp=2:code-rate-lp=0:modulation=64:transmission=8:guard=32:budget-mode=1: Nessun file o directory
- Some channels seem to drop frames when i stream it with rtsp (vod) but they work fine with broadcast..

This is a feature i wanna include into a php interface i'm developing and i wanna release asap, i hope someone here could help me.
:(
thanks
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Jean-Baptiste Kempf
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Re: VOD with DVB-T

Postby Jean-Baptiste Kempf » 21 Mar 2008 00:20

tried frequency=786000 ?
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muse
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Re: VOD with DVB-T

Postby muse » 21 Mar 2008 00:56

I could try it but i don't think it's a problem because this entry works well when i play a stream from one pc.. vlc gives me an error when i try to access to the same rtsp stream from a second pc .. it tells me "device occupied"
[00000463] [Media: LA7] dvb access error: FrontEndOpen: opening device failed (Dispositivo o risorsa occupata)
it seems like i was trying to tune it to another frequency... :roll:

I was thinking also to use another step before this.. i could setup various broadcast streams to localhost on different ports, and after use each broad stream as input for the vod entries (one for each channel). in this case i'd use broadcast features to differentiate every single channel into the same transponder..
btw, the main goal is to setup a vod server with dvb channels.

thanks
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