[VOD] DVB-T on demand is CPU expensive

[becvert]

Hi all,

I just want to know if your VOD server is also CPU expensive.
My server serves DVB-T channels from a dual tuner card.
For instance, when I play a 1080i DVB-T channel directly the cpu load of the process is less than 10%.
When I play the same channel through the VOD server then the load of the server process is 50%.
Only two clients connect to the VOD server. I don't know how much the load would increase if there was more clients.
And it depends on the channel. A client playing a SD channel would make the server run around 30%.

vlc 1.0.1 server on Windows Vista. When no clients are connected the load is 0%.

config vod for channel 7 HD in Australia:

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new 7HD vod setup 7HD mux mp2t setup 7HD input dvb-t:// setup 7HD option dvb-frequency=177500000 setup 7HD option dvb-bandwidth=7 setup 7HD option ts-es-id-pid setup 7HD option programs=1348 setup 7HD enabled

accessed with that url:

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rtsp://10.1.1.3:8888/7HD

command to play directly:

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vlc dvb-t:// --dvb-frequency 177500000 --dvb-bandwidth 7 --ts-es-id-pid --programs 1348

Thank you

[Jean-Baptiste Kempf]

When I play the same channel through the VOD server then the load of the server process is 50%.

You mean VLC VLM vod ?

[becvert]

VLC VLM yep.

server started like this:

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start vlc -I telnet --rtsp-host 10.1.1.3:8888 --vlm-conf vod.vlm