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