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| Please see ["DOMS movies proposal"] for the proposal that will be sent to the proper people at SB. | Please see [[DOMS movies proposal]] for the proposal that will be sent to the proper people at SB. |
De facto standard for SB is MPEG 1 and MPEG 2, with audio in MP2.
Please see DOMS movies proposal for the proposal that will be sent to the proper people at SB.
Overall considerations
As opposed to sound, text and still images, uncompressed movies takes up too much space to be economically feasible to use: A raw RGB grab from television is 720x576 * 3 bytes ~= 1 MB. At 25 fps (after deinterlacing), this is ~= 100 GB/hour.
Most movie grabber cards anno 2006 uses MPEG 1 or 2, with uncompressed or MPEG 1 Audio Layer 2 or 3 compressed audio.
MPEG 1
Pregressive
MPEG 2
http://en.wikipedia.org/wiki/Mpeg2
There's an extension to MPEG 2, that adds AAC sound, which supposedly is complex to decode. One obvious simplification would be to disallow the use of the AAC audio codec.
MPEG 2 is robust against biterrors, as it was designed to be usable for over-the-air broadcasting.