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(parent: 77a3bec) | patch
Improving the forward 16x16 ADST/DCT accuracy
authorJingning Han <jingning@google.com>
Mon, 25 Feb 2013 20:08:29 +0000 (12:08 -0800)
committerJingning Han <jingning@google.com>
Mon, 25 Feb 2013 20:13:37 +0000 (12:13 -0800)
commit65821d668038d69b7b813616a02ffd97f7563821
tree63ecd535239cc28cdfe05f79cd134926c10cce93tree | snapshot
parent77a3becf92b6385ce7e2ffcf636c9cc373d8760ccommit | diff
Improving the forward 16x16 ADST/DCT accuracy

Increase the first stage dynamic range by 4 times, and reduce it
back with proper rounding before applying the second stage. Hence
it still fits in the given dynamic range and slightly improves
the key frame coding performance.

Change-Id: Ia4c5907446f20a95dc3de079c314b3ad1221d8aa
vp9/encoder/vp9_dct.c diff | blob | history
Domain: Multimedia / Codec;