GBPVR w/HDHomeRun

[sub]

Does it use different graphs or codecs ?

It uses its own built in codecs, which arent usable by third party apps.

Did you try overlay? Most people think it gives a better picture.

[bjt3]

Did you try the Overlay renderer? and any other audio decoder/renderers?

Interesting. Moving to the Overlay Manager, which I never use, has got gbpvr so that it consistently changes channels and generates video and audio. The CPU cost is quite high (50% on average), there are some dropouts and data loss, a/v(lipsync) issues and some operations (like Live TV startup) take a long time (20+ seconds). But, there is data, every time.

When I switched video decoders, I always also switched to the corresponding audio decoder.

I haven't really done much with the varying audio renderer settings, as they are even less clear to me than the video.

Does the change in behavior with the Overlay Manager suggest (or confirm) anything ?

[sub]

Interesting. Moving to the Overlay Manager, which I never use, has got gbpvr so that it consistently changes channels and generates video and audio. The CPU cost is quite high (50% on average), there are some dropouts and data loss, a/v(lipsync) issues and some operations (like Live TV startup) take a long time (20+ seconds). But, there is data, every time.

Some progress at least...

Does the change in behavior with the Overlay Manager suggest (or confirm) anything ?

Not really, but video renders/decoder and in combination with videocards is pretty complex and people often see different results. Too many variables.

Many videocards have better support for Overlay given its an older, more established technology.

[bjt3]

Some progress at least...

Not really, but video renders/decoder and in combination with videocards is pretty complex and people often see different results. Too many variables.

Well, my head is spinning, so to speak.

I'll try some more combinations, but probably tomorrow. I'm on the verge of losing track of what does/doesn't work and when and why.

If you think of any other experiments that might yield interesting or valuable info, please let me know. The "too many variables" is clearly true. I'm also operating at a slight disadvantage as I'm not sure what "wheels and knobs" connect and interact with what. You clearly have the advantage there !

Thanks again. I'm going to keep poking at this and probably update this thread if I find anything of interest.

[laserfan]

Hi bjt3! I don't use GB-PVR for playback at all, nor do I sit & watch any of my HDTV captures on my PC, but I do "check" them on my PC from time-to-time, and...

I have an ancient, cheap, crappy MX400 video card, but I am still able to look at HDTV transport streams pretty much glitch-free using the Elecard MPEG Player. It seems at least on my PC to have the best "thruput", and I've tried lots of players & HDTV pump & other stuff. BUT... I don't view these HD files in full-res either, I use Elecard's FilterConfig utility to adjust the MPEG2 decoder to "Quarter" resolution. This puts the window for a normally 1920x1080 file at, what, 480x270 or some such. But it does play pretty much flawlessly and in-sync.

This prolly isn't what you want, but still it might help you in determining whether the FILES are glitchy or your SYSTEM is at issue. The Elecard player will play past the trial date, with a scrolling "you need to register" at the bottom, but for my purposes I don't care about that (again I don't actually sit and watch an entire show w/Elecard).