[x264-devel] Re: H.264 motion vector predictor?

[Tuukka Toivonen]

On Mon, 21 Feb 2005, Tuukka Toivonen wrote:

> As far as I know, the MV predictor is obtained as median of MVs of 
> (sub)partitions left, above, and above left of the current (sub)partition. For
                                          ^^^^
Should be "right", of course. It's getting late =)

I'll describe how 16x8 and 8x16 partition MVs are predicted, just for 
record:
- MV predictor for leftmost 8x16 partition is the MV from the
   (sub)partition at the left side of it (in previous macroblock)
- MV predictor for rightmost 8x16 partition is the MV from partition at
   above right
- MV predictor for upper 16x8 partition is the MV from the (sub)partition
   above it.
- MV predictor for the lower 16x8 partition is the MV from the partition at
   left of it.

Correct me if I made any mistakes.

-- 
This is the x264-devel mailing-list
To unsubscribe, go to: http://developers.videolan.org/lists.html