HVR2200 and bad analogue recordings
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2008-09-24, 04:50 AM
hmm, I just tried it now and that file seems to play fine for me. It reports the duration as 20 seconds, and plays from the tail end of some guy getting punked, through to ashton saying it'd been a great year. At the end it just stops and goes back to the video library, and I can play it again.
2008-09-24, 05:22 AM
sub Wrote:hmm, I just tried it now and that file seems to play fine for me. It reports the duration as 20 seconds, and plays from the tail end of some guy getting punked, through to ashton saying it'd been a great year. At the end it just stops and goes back to the video library, and I can play it again.Ok, that first clip plays ok, yes, but when analysing it with TS-Doctor it reports that it contains 2 PMTs (and errors to do with that). I thought you might have had tools to analyse it and spot some of the internal errors. Never mind; I'll upload the second clip from the middle of FG - this is the one that broke my system pretty badly.
2008-09-24, 05:24 AM
I can check the PMTs in the debugger, but its a bit time consuming and I'd rather do it on a file where I can visibly see problems before I start.
2008-09-24, 07:31 AM
After a PC crash (ahem, nothing to do with gbpvr ;-) ) I have just uploaded the broken TS file:
http://www.megaupload.com/?d=O9HZYUBQ
2008-09-24, 02:55 PM
This file looks to be full of continuity errors (566 of them). This makes me think your bit error rate is high, and almost certainly caused by less than perfect reception. My recordings typically have 0 continuity errors, so the number you're having is very high.
2008-09-24, 11:24 PM
sub Wrote:This file looks to be full of continuity errors (566 of them). This makes me think your bit error rate is high, and almost certainly caused by less than perfect reception. My recordings typically have 0 continuity errors, so the number you're having is very high.Hi Sub, yes I am suspicious of my reception - sometimes recordings seem flawless but I wonder how many internal errors there are internally.... I wonder if I have grounding or shorting on my antenna during rough weather (knowe ye of any good antenna techs in wgtn? ;-) ) Anyway, without getting into too much detail, how does gbpvr handle all these continuity errors... for playback does gbpvr simply ask the decoder and/or renderer to play xxx.ts, or does gbpvr read xxx.ts and stream all the data/packets to the appropriate driver(s)? What I'm getting at is, does gbpvr have any say in what the driver(s) tries to process? Because it looks like something is corrupting things (probably memory space) somewhere along the way, making pvrx2 unstable and in come cases crashing the entire OS, so I'd like to know where the problem is.
2008-09-24, 11:31 PM
GB-PVR doesnt really have any say in what the driver produces, and everything is passed on unaltered (either to the file or demux). In the case of bad reception, transport stream packets can have the error bits set and/or entirely missing packets, and the its up to the demux to decide if they're passed on further down the stream. The demux will probably try to do do some error handling, but it can only do so much. GB-PVR doesnt really have any say in how that behaves, so your best bet is probably to see if you can improve your reception to see if things improve.
2008-09-25, 01:16 AM
sub Wrote:so your best bet is probably to see if you can improve your reception to see if things improve.Yeah I keep getting back to this but I haven't found anything that reports the reception (at least for an HVR2200). Can you recommend anything?
2008-09-25, 01:31 AM
I'm not really sure. I think Hauppauge have a signal strength meter utility, but I'm not sure if its compatible with the HVR2200.
2008-09-25, 01:52 AM
sub Wrote:GB-PVR doesnt really have any say in what the driver produces, and everything is passed on unaltered (either to the file or demux).Is the demux part of the decoder I choose, or is this done by whatever hardware supports it? (I have a leadtek 8500GT video card.) sub Wrote:I'm not really sure. I think Hauppauge have a signal strength meter utility, but I'm not sure if its compatible with the HVR2200.Yeah it's not listed under their tools (last time I looked anyway)... maybe I need to email them. |
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