View Full Version : NetworkRecorder with SageGraphRecorder - First Bad Recording
2011-09-09, 12:28 AM
After 10 days of problem-free recording, I got the first bad recording yesterday. The file is there and about 5.8GB which seems about right for 1 hour of HD. But, it just shows a black screen in NPVR, and chokes VLC. Martin, do you want a chunk of the file to look at?
After finding the bad recording, I tried live TV and it worked fine. The same program recorded fine 3 hours later (thank you repetitious cable).
2011-09-09, 12:43 AM
Sure I'd wouldn't mind a 50MB sample on dropbox or megaupload to check if it is a valid ts file. Are you using the NPVR TS writer?
2011-09-09, 12:59 AM
OK, I'll get a sample to you as soon as I find cutchunk, etc. A day or so. I do use the NPVR TS writer. I also have the Nvidia TS parser between the tuner and writer in the graph. This is a leftover from my previous experiments with Graphcorder, so I just left it. Didn't seem to affect anything negatively, until now perhaps. :)
2011-09-09, 03:38 AM
I found one version of the sub's utility here http://forums.gbpvr.com/showthread.php?42538-Can-t-see-ATSC-subchannel-video-audio-OK&p=339328#post339328 and I uploaded it to the wiki in case it get's deleted by the forum software. http://www.gbpvr.com/nwiki/pmwiki.php?n=Utility.CutChunk?action=downloadman&upname=CutChunk.zip
2011-09-10, 09:16 PM
50MB sample on the way. Timing info attached, if that's of any use.
2011-09-10, 10:25 PM
Your file plays fine with NPVR and the NMT, which is usually my first test but it does fail in NPVR. If I fire up MPC-HD which is a much much better test than VLC and I see your prepadding and recording is working just fine. Looking at the file itself there is junk in the beginning of the file and if I remove that even NPVR plays it. Maybe it took time for the cable box to become copy freely after a channel change?
This does look like a file you might want to give to sub. You are using the NPVR TS writer, and it might be able to be tweaked.
2011-09-10, 11:03 PM
Thanks. I'll check with Sub. Junk at the beginning of the file is not new for me. Don't know if it's the STB (Moto DCT64xx?) or Charter. There were a couple of HD locals when I first got the box that could not be recorded. There were missing whatever it is that is repeated every 187 bytes, or whatever. Obviously pretty fuzzy on the details.
2011-09-11, 12:13 AM
You also might want try using the NPVR TS Mon instead of the NVidia TS parser (if you need anything at all)
Edit and every 188 bytes you should see a G (0x47)
2011-09-11, 01:43 AM
That's it: 0x47 every 188 bytes. I knew it was something like that. :) I'll try the TS mon just for the heck of it. Only two more important cable shows to record, The Closer and Rizzoli and Isles. Then, it's back to broadcast.
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