[mythtv] Video library playback using 802.11g wireless network
Eskil Brun
eskil at eskil.net
Wed Jul 13 07:21:27 EDT 2005
After googling and searching the mythtv mailing lists I have not
found an answer to the following:
I have just set up a mythtv backend (2.4ghz P4 with two pvr150 cards)
that works just fine. Great work, guys!
I use a 802.11g wireless network in my house. So far this has been
sufficient.
I have been using mythfrontend on my macintosh Powerbook.
Playing around with encoding and transcoding settings, I have found
out that MPEG4 with 1 megabit of transfer rate will give me
acceptable quality.
Using the mythfrontend, playback will abort and return to the
frontend anywhere from a few minutes to a few seconds after starting.
In the log on the backend I get this message:
WriteBlock zerocnt timeout
Using HTTP for streaming the .nuv file from my backend to VLC on my
powerbook, playback is flawless and uninterrupted.
Since I can use the frontend with a 100MB ethernet connection (i have
a switch) to my backend with no problem, I assume that the unregular
data rate of my wireless network combined with insufficient video
buffering is causing this.
Both my frontend hosts have 1GB of system memory and I would like to
increase the buffering capacity of the mythfrontend software.
Since my wireless network is fully capable of 1 megabit rate in
average (but not substained) this should solve my playback problems.
My question is: Is this not possible due to how the frontend player
works? I know little about its workings.
If possible, any hints to where in the source code I could try out
increasing buffer capacity would be helpful.
Also, any comments about about what I would like to do is welcome.
Also, where could I change the behaviour of the frontend from
aborting? Is it the backend aborting the stream?
I could go diving in to the source code myself, but I would very much
like some advice.
Eskil...
:-)
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