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13 lines
769 B
Text
13 lines
769 B
Text
Packets come from 1394 480 bytes at a time. This is not a video segment
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length. This causes problems, since a packet boundary crossing a video
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segment can split a video segment if we lose an iso packet. We can
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recover from this, sorta, with significant changes to the parser. We have
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to deal with the idea that a) some macroblocks just don't exist (we have
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zero's for them) and b) when any of the 5 macroblocks doesn't exist, we
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can't do pass 3.
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Since things are bitstream-based, we can deal with this, but we have to
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add a layer of code that tries to save time (maybe) by not decoding things
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that don't exist. Not sure how this is gonna work with the parse code
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being based on video segments, and not easily splittable into
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macroblock-level parsing (or is it?).
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