TS Files Missing Data

[gabest]

Help! I've been scratching my head on this for a while and it doesn't make sense. I'm looking for any advice on where to look for the problem.

I'm running NPVR 2.0.3 on Windows 2008 R2 (yes, it's a server OS, and maybe that's part of the problem...). My scheduled recordings are missing chunks, but they run to completion. There are NO errors logged in NRecord.log - they start as scheduled and end as scheduled. I'm running a Dvico USB tuner that I've been running on a Windows 7 machine for years without issues.

The only evidence is from Timing.info. Here's a sample - the last two columns are the calculated differences between the prior entry and this entry for the two sets of number so you can see the problem in the last few entries:

2646291 4939150288 858 1760808
2647149 4940827248 858 1676960
2648023 4942504208 874 1676960
2648897 4944181168 874 1676960
2649786 4945941976 889 1760808
2650644 4947702784 858 1760808
2651533 4949463592 889 1760808
2746257 4950385920 94724 922328
2857751 4950469768 111494 83848
2969260 4950553616 111509 83848
3080754 4950637464 111494 83848
3192264 4950721312 111510 83848
3303758 4950805160 111494 83848
3415267 4950889008 111509 83848
3526761 4950972856 111494 83848
3638271 4951056704 111510 83848
3749780 4951140552 111509 83848

This occurs randomly during recordings and not every time. I've tried reloading everything and moved the output files to other local and network drives, but no luck. I'm really just interested in any clue anyone can give me that might point to the root of the problem.

Thanks in advance

[gabest]

Edit: Any chance this is occuring when the HD broadcast switches to SD. for example at a commercial?

[mvallevand]

Since installing BDA drivers on Win2008R2 is a hack, have you checked at the source to see if this is known problem?

Martin

[gabest]

I've searched and searched, but no info found. I'm pretty sure it's something different in the 2008 OS as well, but the hack uses all MS files and standard registry entries, though it's possible something that handles anomolies/changes in the transport stream is missing. Any ideas on what it might be? Here's the NRecord.log for the recording in the first post:

2011-03-27 15:24:15.922 [INFO][7] Creating BDA graph
2011-03-27 15:24:15.937 [DEBUG][7] Using tuner Bluebird, BDA Tuner1 (1)
2011-03-27 15:24:15.937 [DEBUG][7] About to auto detect capture filter
2011-03-27 15:24:15.937 [DEBUG][7] Got capture filter: 'Bluebird, WDM TsCapture1'
2011-03-27 15:24:15.937 [DEBUG][7] Added capture filter
2011-03-27 15:24:15.937 [DEBUG][7] Connected Tuner to Capture
2011-03-27 15:24:15.953 [DEBUG][7] Graph filter list:
2011-03-27 15:24:15.953 [DEBUG][7] - MPEG-2 Sections and Tables
2011-03-27 15:24:15.953 [DEBUG][7] - BDA MPEG2 Transport Information Filter
2011-03-27 15:24:15.953 [DEBUG][7] - MPEG-2 Demultiplexer
2011-03-27 15:24:15.953 [DEBUG][7] - NPVR TS Mon
2011-03-27 15:24:15.953 [DEBUG][7] - Capture
2011-03-27 15:24:15.953 [DEBUG][7] - Tuner
2011-03-27 15:24:15.953 [DEBUG][7] - Network Provider
2011-03-27 15:24:15.953 [INFO][7] About to start BDA graph
2011-03-27 15:24:15.953 [DEBUG][7] Starting graph...
2011-03-27 15:24:16.095 [DEBUG][7] About to tune BDA graph:
<tuning>
<type>QAM</type>
<locator>
<physical_channel>114</physical_channel>
</locator>
<service_id>6</service_id>
<tsid>33944</tsid>
<service_type>1</service_type>
</tuning>

2011-03-27 15:24:16.095 [INFO][7] Setting locator to BDA_MOD_256QAM

2011-03-27 15:24:16.095 [INFO][7] Tuning to frequency 114
2011-03-27 15:24:16.115 [DEBUG][7] About to try setting tuner modulation
2011-03-27 15:24:16.115 [DEBUG][7] Got tuner output pin
2011-03-27 15:24:16.115 [DEBUG][7] Got IKsPropertySet interface
2011-03-27 15:24:16.115 [DEBUG][7] KSPROPSETID_BdaDigitalDemodulator is supported...
2011-03-27 15:24:16.125 [DEBUG][7] Modulation set
2011-03-27 15:24:16.145 [DEBUG][7] Calling LockChannel()
2011-03-27 15:24:18.195 [DEBUG][7] locked=1, present=1, strength=-6960, quality=100 (took 2044ms to check)
2011-03-27 15:24:18.205 [INFO][7] DigitalRecorder.StartStream() allocated handle: 0x4
2011-03-27 15:24:18.205 [DEBUG][7] Temp at 3/27/2011 3:24:28 PM
2011-03-27 15:24:18.205 [DEBUG][7] Started recording (966:\\WIN7ULTIMATE\VideosVM\College Basketball\College Basketball_20110327_13101555.ts)
2011-03-27 15:24:18.215 [DEBUG][7] No C:\Users\Public\NPVR\Scripts\ParallelProcessing.bat
2011-03-27 15:57:00.258 [DEBUG][7] Stopping recording (966). Past end time of recording.
2011-03-27 15:57:00.258 [INFO][7] DigitalRecorder.StopStream() handle: 4

[sub]

There is no sign of any problem in that log snippet. It sounds like there are periods when your device (or the BDA subsystem) stops delivering data.

[gabest]

Thanks, Sub. Any way you can suggest to check that out? I just noticed that the problem also seems to affect live TV. Watching golf on my client and live TV froze.

[sub]

To be honest, I'm not sure. Maybe check if you get the same in some other app. It'd at least help confirm the source of the problem.

[Reddwarf]

It almost looks like a signal dropout

[gabest]

I'll ty out the native tv viewer for the tuner. Maybe it will give me a clue. Thanks for thinking about it.