Steve, running the commands you and curtis specified:<br>
<br>
plugctl -n 2 opcr[0].channel=63<br>
plugctl -n 2 opcr[0].bcast_connection=1<br>
<br>
greatly improves my firewire reliability. However, I still find
it almost unusable due to some slowdown/stuttering in the image.
(I also have a PVR-250 which works flawlessly) I know it's not my
network, so I was very curious to try out the data_rate command you
listed above, thinking that it might fix this issue. (plugctl -n
2 opcr[0].data_rate=3) <br>
<br>
Running this command and then plugreport shows that the data_rate
variable does get set to 3, (before it was zero), HOWEVER, as soon as I
begin to record a show or watch live TV, it immediately gets set back
to zero. You mentioned that you run this through a cron job every
hour, although I'm finding that if I try to set the data_rate back to 3
while something is recording, it immediately freezes and stops
recording. <br>
<br>
Any other tricks or ideas to somehow keep this setting at 3? (or anything greater than zero) <br><br><div><span class="gmail_quote">On 12/16/05, <b class="gmail_sendername">David Rudder</b> <<a href="mailto:drig@noses.org">
drig@noses.org</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Are you sure this isn't a drive-speed issue? Check hdparm -v
<br>/dev/<device>. Also, make sure you have at least a 7200 RPM drive.<br>The dct-6200 will send out an mpeg stream. I think MythTV just copies<br>it to disk. So, there's very little CPU or memory involved.<br><br>
You can try running test-mpeg2 (from the libiec61883 package). It<br>outputs the raw mpeg stream from the 6200. If it gets the same<br>corruption you see in myth, then you know it's not a myth issue.<br>test-mpeg2 >
file.mpg<br>wait maybe 30 seconds, then hit ctrl-c. mplayer file.mpg should display<br>the file.<br><br>-Dave<br><br>Azmat wrote:<br><br>>I've been using this script in a cron job for the last week, but I'm<br>>still seeing glitching. Its mostly occurring at the start of a show
<br>>and then clears up in the middle. Is it possible that I might need to<br>>use a faster processor or bump up my RAM? Right now I'm running an<br>>Athlon XP 2400+ with 1G of RAM. Thanks in advance for the help.
<br>><br>>Azmat<br>><br>>On 12/9/05, Steve Adeff <<a href="mailto:adeffs@gmail.com">adeffs@gmail.com</a>> wrote:<br>><br>><br>>>there was a thread a while back regarding this. You can search on Gossamer for
<br>>>more info. basically you want to run this bash script. It will set the p2p or<br>>>broadcast connection to 1 depending on what your machine will use. From what<br>>>I've found bcast is prefered when available, which is why it comes second
<br>>>(since its one or the other) p2p is sometimes only available and when this is<br>>>the case its fine. data_rate doesn't need to be 3, but it increases speed if<br>>>your using firewire for capture and not just channel changing. I have it run
<br>>>before mythbackend starts when I run it via init.d and I've found it resets<br>>>sometimes so I run it hourly as a cron job.<br>>><br>>>oh, and the -n # is which node it is. In case you have more than one firewire
<br>>>connection have it run for each connection as well.<br>>><br>>>#!/bin/bash<br>>>plugctl -n 2 opcr[0].channel=63<br>>>plugctl -n 2 opcr[0].n_p2p_connections=1<br>>>plugctl -n 2 opcr[0].bcast_connection=1
<br>>>plugctl -n 2 opcr[0].data_rate=3<br>>><br>>>--<br>>>Steve<br>>><br>>>On Friday 09 December 2005 14:52, Azmat wrote:<br>>><br>>><br>>>>Here's my plugreport output:
<br>>>>Host Adapter 0<br>>>>==============<br>>>><br>>>>Node 0 GUID 0x0000d10080357942<br>>>>------------------------------<br>>>>libiec61883 error: error reading oMPR
<br>>>>libiec61883 error: error reading iMPR<br>>>><br>>>>Node 1 GUID 0x4279358080357942<br>>>>------------------------------<br>>>>libiec61883 error: error reading oMPR<br>>>>libiec61883 error: error reading iMPR
<br>>>><br>>>>Node 2 GUID 0x000f9ffffe103008<br>>>>------------------------------<br>>>>oMPR n_plugs=1, data_rate=2, bcast_channel=63<br>>>>oPCR[0] online=1, bcast_connection=0, n_p2p_connections=0
<br>>>> channel=63, data_rate=0, overhead_id=0, payload=376<br>>>>iMPR n_plugs=0, data_rate=2<br>>>><br>>>>On 12/9/05, Steve Adeff <<a href="mailto:adeffs@gmail.com">adeffs@gmail.com
</a>> wrote:<br>>>><br>>>><br>>>>>On Friday 09 December 2005 12:44, Azmat wrote:<br>>>>><br>>>>><br>>>>>>Hi,<br>>>>>><br>>>>>>My mythtv system is running on an AMD Athlon XP 2400+ (2 GHz) with 1G
<br>>>>>>RAM, a PVR-350 and firewire capture from my Motorola DCT-6200 cable<br>>>>>>box. Whenever I do firewire capture from the box through Myth, the<br>>>>>>recording exhibits a audio/video glitching. The picture will
<br>>>>>>momentarily become pixelated and there will be a brief skip. I can<br>>>>>>tell the glitch is in the recording because when I rewind and playback<br>>>>>>it is reproducible. There is no pattern or regularity to the
<br>>>>>>glitching. Sometimes it will be at the start of the show and will<br>>>>>>disappear in the middle, only to reappear later. It doesn't prevent<br>>>>>>me from recording shows, but is just become a huge annoyance that I'd
<br>>>>>>like to take care of. Does anyone have any idea what might be wrong?<br>>>>>>Do you think a faster processor would help?<br>>>>>><br>>>>>>Thanks in advance,
<br>>>>>><br>>>>>>Azmat<br>>>>>><br>>>>>><br>>>>>run plugreport and paste the output.<br>>>>><br>>>>>--<br>>>>>Steve
<br>>>>><br>>>>><br>>>>--<br>>>><br>>>><br>>>>Azmat<br>>>><br>>>><br>><br>><br>>--<br>><br>><br>>Azmat<br>>_______________________________________________
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