CompuServe Thread

#Where is PCI capture??

4 messages in this thread
#2536From: Robb OlsenFeb 2, 1995 10:57 PM
Curious that there are no PCI video capture devices, at least that I can find. What gives? Seems a natural for video and audio capture, and, though PCI is Intel's baby, even the Smart Video Recorder Pro is ISA only. I know Intel folks won't "comment on unreleased products", but how about some opinion from forum folks about PCI video capture. Sure would love to auto configure those IRQ's and memory addresses and get the higher throughput. Thoughts? Regards, Robb.
#2549From: Virtually RealFeb 3, 1995 12:13 AM
I agree totally with you concerning the "plug and play" advantages to PCI bus. I think that you will begin to see many companies entering this arena this year. PCI seems to be a stable standard now, processors are gaining workstation speeds, etc. The alternative to this type of thing is something like a Personal Animation Recorder/TBC-IV combo. The are standard ISA devices but do not rely on the bus to handle video information. They are processors in amongst themselves and only use the bus to receive instructions from your operating system. 752×480, 60 field per second capture is standard with this combo irregardless of what computer you are running them in. Albiet, this solution is a tad more expensive than, say, a $500.00 capture card but depending on what quality of output you wish to attain, it is money well spent. Biggest problem with standard capture cards (just my opinion) is their compatiblity (or lack thereof) with whatever video accellerator you happen to have. While there is supposed to be the VESA 1.2 standard as well as a standard feature connection, the slightest anomolie an a video card's bios or driver can cause problems. I use the PAR/TBC combo everyday for everything from 3D animation to rotoscoping and playing around with the latest video's of my two year old. Anyway, I think that you will soon see a whole new ere in PCI devices unveiled at NAB and SIGGRAPH this year. Keep your eyes open! Dean Oliver Virtually Real
#2551From: Steve Bennett/SYSOPFeb 3, 1995 12:17 AM
Robb, I'll throw this out, as inacurate as it may be. Most of the capture card makers that I have seen for the PC do everything off the buss except for the actual HD I/O. Therefore the need for bandwidth is lessened. All of the "effects" are done through dedicated hardware on the card or offline and rendered. I am not enough of a hardware guy to tell you even "why" they would want to do it all in the CPU as oppsoed to using the dedicated card-based hardware to do the dirty work, but, having seen Amigas do their tricks I can tell you that there are certainly advantages. -John
#2601From: Robb OlsenFeb 3, 1995 6:55 PM
John and Dean, Thanks for your responses, helpful info. I'll still keep my eyes peeled for PCI options. Regards, Robb.