vertical-left intra prediction (4x4) reconstructs bottom-right pixel wrongly

flaccidware / webm

Automatically exported from code.google.com/p/webm

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vertical-left intra prediction (4x4) reconstructs bottom-right pixel wrongly #1015

Open GoogleCodeExporter opened 8 years ago

GoogleCodeExporter commented 8 years ago

If we assume a block like this:

q r s t u v w x
0 1 2 3
4 5 6 7
8 9 A B
C D E F

Then F (in vp8) used to be w + 3 * x (and e.g. E was v + w * 2 + x). However, 
in vp9, a typo caused F to be just x. I think this is unintentional, and should 
be fixed in vp10.

Original issue reported on code.google.com by rsbul...@gmail.com on 4 Jun 2015 at 11:53

GoogleCodeExporter commented 8 years ago

Original comment by fgalli...@google.com on 18 Jun 2015 at 10:11

Changed state: Available

GoogleCodeExporter commented 8 years ago

Original comment by ya...@google.com on 17 Jul 2015 at 12:12

Added labels: Hotlist-VP10-must-fix

GoogleCodeExporter commented 8 years ago

Original comment by ya...@google.com on 12 Aug 2015 at 10:06

Changed state: Assigned