[mythtv] HDTV Random Blockiness

Kyle Rose krose+mythtv at krose.org
Sun Feb 13 14:38:51 UTC 2005

> In the end I concluded that the BT878 was inadequate for this purpose;
> it isn't designed for it and so the FIFO is too small. It's provisioned
> for audio data at up to a megabit, not ATSC/DVB data at 20 Mbit or
> above.

I second this analysis.  The megablocks patch I wrote for the HD-2000
driver solves interrupt latency issues, but not bus latency issues,
and I don't believe the bus latency issues *can* be solved with the
existing hardware FIFO.


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