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bbk
Joined: 15 Oct 2005 Posts: 79
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Posted: Wed Feb 01, 2006 9:00 pm Post subject: Stream Hauppauge |
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Hello
Just for testing and fun i have set up a video stream directly from my tv card.
I used the following to go....
v4l
for the tv card on linux
ffmpeg2theora
to get the input from the tv card and transcode on-fly into ogg theora
oggfwd
to froward it to the icecast server
icecast server
cortado
is a java applet to look at the theora stream without the need of a video player
finally i got it to work but i have some problems....
i used the vlc to test the stream in my lan and after a few seconds the image get freezed and restarts for less seconds than before and gets freezed again and never comes up again.
i can reproduce this and i tried it with vlc on osx and on freebsd.
has anybody had the same problems?
do i just receive the burst and then a little bit and.....?
i tried with the lowest settings of quality i can do:
inputframerate 15
160x128
video quality 1
videobitrate 45
and secondly i have no audio but that does not care me a lot but i whould like to know why.. isn't it included in the theora?
greets _________________ ::bbk::
http://audioasyl.net |
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karlH Code Warrior
Joined: 13 Jun 2005 Posts: 5476 Location: UK
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Posted: Wed Feb 01, 2006 10:10 pm Post subject: |
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make sure you have the bandwidth to distribute the stream, and note that theora is a video codec so no audio in video, Ogg being the container can contain vorbis and theora.
karl. |
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EvilOverlord Forum Admin
Joined: 12 Jun 2005 Posts: 173 Location: Isle of Man
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Posted: Thu Feb 02, 2006 2:14 pm Post subject: |
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Also take a look at the machine's load. I had this sort of problem when trying to encode on a machine that wasn't powerful enough. Encoding video on the fly takes alot of umpf. |
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bbk
Joined: 15 Oct 2005 Posts: 79
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Posted: Thu Feb 02, 2006 6:08 pm Post subject: |
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hello
first of all thank you for your answer.
as i wrote i was testing the stream in my lan so the bandwith shouldn't be the problem.
i just checked the the cpu load and it's about 40% so it should also be ok.
for testing i changed the framerate from 15 to 5 and it worked without stopping... then i stopped the source and restarted later with no changing of the settings and here we go again it has the same problem again.
maybe i should check out a other client for watching... _________________ ::bbk::
http://audioasyl.net |
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bbk
Joined: 15 Oct 2005 Posts: 79
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Posted: Sun Feb 12, 2006 6:40 pm Post subject: cpu load |
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ok...
i checked again.. and it seems really to be a problem; i don't have enough "horsepower"
the programm effectv consumed too much ressources when i used some effect.
i tried with a amd 1.2Mhz athlon.... that is not enough.
i give some more reports soon but i have a lot to do for the moment.
by... _________________ ::bbk::
http://audioasyl.net |
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EvilOverlord Forum Admin
Joined: 12 Jun 2005 Posts: 173 Location: Isle of Man
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Posted: Sun Feb 12, 2006 7:20 pm Post subject: |
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Have you tried different video settings? Encoding video in realtime is alot to ask of even a fairly new computer. |
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bbk
Joined: 15 Oct 2005 Posts: 79
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Posted: Sun Feb 12, 2006 7:29 pm Post subject: |
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yes and it really is the problem...
the encoding with ffmpeg2theora is no more a problem i solved it when i took a other pc (1,2Mhz) and it works fine
i also use effectv to have a real time video effect over the input of the tv or webcam.
some effects like matrixtv take a lot of power away... and don't work. with some others i get the stream up. _________________ ::bbk::
http://audioasyl.net |
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