Spent the last several hours with the Blackmagic Design folks. I'm writing this from the show press room. The executive summary is as follows:
It is possible to use the Sony Compression-Decomperession Chip that immediately follows the 1920x1080 capture CCD(s) or CMOS(s) but precedes the HDV section of HDV camcorders with HDMI output to get uncompressed 4:2:2 video from those cameras into a Mac Pro and soon dual core G5 PowerMacs with PCIe as well.
The Intensity HDMI i/o PCIe card for Mac Pro and soon dual core g5's (bug in the firmware) will include a three camera solution by NAB using three cards - one for each camera - to be called On-Air 3.0.
The uncompressed HDV can come best from live and almost as good off the HDV recordings - including all HDV recordings made on non-HDMI out capable camcorders - i.e. all HDV recordings since day one. What comes out the HDMI port bypasses the entire HDV section of the camcorder and comes directly from the capture processor off the tape in true 1920x1080 instead of 1440x1080 that the HDV section outputs from the FireWire port. The HDMI output is true 4:2:2 uncompressed HD and as it goes into the Mac Pro and soon Quad and dual core G5 PowerMacs, a superior codec is used to reduce the file size but provide much better frame accurate rendering of the recordings than can be garnered from the FireWire HDV signal.
I want to get back to the show so I'll stop here. I think the
Blackmagicdesign Intensity solution is one of the the most exciting revolutionary engineering achievements in the history of video communications.
I wonder if the 8 core Mac Pro will have HDMI input(s) added to it. You need to fill up all 4 PCIe slots for the 3 camera On-Air 3.0 live studio switching system.