2009-01-09, 04:12 AM
I'm not convinced this is a GBPVR problem, but, well, I'd like to rule it out.
We have here a machine built around the ATI 550 capture card, and it has worked pretty well for the past couple of years. Once everything was put together, it was pretty much forgotten about and it just did what it did.
Recently, however, we've been having problems on playback. If playing from the MPEG2 recording, the video will freeze, sometimes permanently, sometimes restarting again a few minutes further into the playback.
If I let the transcoding option do its thing, the video will play through, but the audio and video will get out of sync (starting at the same place the MPEG2 version would freeze).
If I take the same file to a different machine and play it back there (via Zoom Player in this case), it plays through, BUT, there is a definite burp (maybe even a belch) at the same point. Maybe only a stutter, or may skip forward a few seconds into the video.
With this in mind, I'm reasonably confident that the issue lies with the recording, not with the playback. Presumably, for example, the transcoding is also choking at the same place, skips by the corrupt video as best it is able, and picks up from there, and that's what is getting the sound out of sync.
No changes were made on the recording machine for... fow, months. It just, well, began misbehaving. I did upgrade the 550 drivers to the newest version after it started as a test, but it didn't make any difference.
Given that the 550 does hardware encoding right on the card and (I think?) just dumps the video out without too much processing, I'm guessing that there is a problem with the card.
Still, it's only a guess. Config does let me set up different bitrates and the like, so presumably there is some processing going on.
If the card has died, well, so be it. But I don't want to invest in a new one unless I KNOW that that is the case.
So, anybody have any ideas what could be wrong, or tests I can do to find out? I don't have another machine with a PCI slot that has enough guts to test out the card, so my first plan of just sticking the card into an alternate machine has been thwarted.
I'm open to ideas.
We have here a machine built around the ATI 550 capture card, and it has worked pretty well for the past couple of years. Once everything was put together, it was pretty much forgotten about and it just did what it did.
Recently, however, we've been having problems on playback. If playing from the MPEG2 recording, the video will freeze, sometimes permanently, sometimes restarting again a few minutes further into the playback.
If I let the transcoding option do its thing, the video will play through, but the audio and video will get out of sync (starting at the same place the MPEG2 version would freeze).
If I take the same file to a different machine and play it back there (via Zoom Player in this case), it plays through, BUT, there is a definite burp (maybe even a belch) at the same point. Maybe only a stutter, or may skip forward a few seconds into the video.
With this in mind, I'm reasonably confident that the issue lies with the recording, not with the playback. Presumably, for example, the transcoding is also choking at the same place, skips by the corrupt video as best it is able, and picks up from there, and that's what is getting the sound out of sync.
No changes were made on the recording machine for... fow, months. It just, well, began misbehaving. I did upgrade the 550 drivers to the newest version after it started as a test, but it didn't make any difference.
Given that the 550 does hardware encoding right on the card and (I think?) just dumps the video out without too much processing, I'm guessing that there is a problem with the card.
Still, it's only a guess. Config does let me set up different bitrates and the like, so presumably there is some processing going on.
If the card has died, well, so be it. But I don't want to invest in a new one unless I KNOW that that is the case.
So, anybody have any ideas what could be wrong, or tests I can do to find out? I don't have another machine with a PCI slot that has enough guts to test out the card, so my first plan of just sticking the card into an alternate machine has been thwarted.
I'm open to ideas.
