Note: Updated Lurker's Guide available (but not this page!)This page belongs to the old 1990s SGI Lurker's Guide. As of 2008, several of the Lurker's Guide pages have been updated for HDTV and for modern OS platforms like Windows and Mac. This particular page is not one of those, but you can see what new stuff is available here. Thanks!
These pages do not cover external video disk recorders such as those from Abekas or Accom. External video disk recorders record and play back video in real-time using their own video inputs and outputs. An attached computer issues play/stop/record/seek commands to the disk recorder, and can upload or download video data, typically in non-real-time, over a serial, ethernet, SCSI, or GIO link.
These pages do not yet cover recording and playing synchronized audio along with the video.
We will show you SGI Movie Library calls you can use to efficiently read and write uncompressed video in a QuickTime file.
All the devices in this list support the 2-byte-per-pixel 4:2:2 VL_PACKING_YVYU_422_8 packing at full-rate. Many of them also have full-rate support for various RGBA and 4:2:2 and 4:4:4 YCrCb packings ranging from 2 to 8 bytes per pixel. The Pixel Rosetta Stone: Packings and Colorspaces discusses the packings in detail and indicates which are supported in real-time by which devices.
The vino (built-in Indy) device can bring video into memory at full-size and full-rate. This case study currently does not discuss uncompressed video disk i/o with this combination, though theoretically it is possible (since one can insert a GIO card to get the required disk bandwidth).
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 | thailand fever I co-authored this bilingual cultural guidebook to Thai-Western romantic relationships. | ||||||||||
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 | jeed illustration My English-fluent Thai friend Jeed is a freelance illustrator who is available for hire. | ||||||||||
| Copyright | All text and images copyright 1999-2008 Chris Pirazzi unless otherwise indicated. | ||||||||||
