[mythtv-users] Re: Video library playback using 802.11g wireless
barryhee at gmail.com
Mon Jul 18 04:12:48 EDT 2005
On Jul 13, 2005, at 5:21 AM, Eskil Brun wrote:
> 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
> 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.
> mythtv-dev mailing list
> mythtv-dev at mythtv.org
I also have had this problem specifically when playback recordings. I
have less of a problem when watching LiveTV, so I guess there is more
overhead when watching recordings.
My WiFi network can sustain about 2.00MB/s and that is with an Apple
Airport Extreme Base Station.
Hope someone can help fix this?
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