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(parent: 4e2697f) | patch
optimize 8x8 fdct rounding for accuracy
authorYaowu Xu <yaowu@google.com>
Fri, 22 Feb 2013 19:14:04 +0000 (11:14 -0800)
committerYaowu Xu <yaowu@google.com>
Sat, 23 Feb 2013 00:55:30 +0000 (16:55 -0800)
commit22012ee99416dae8640e1b72009ea9aeaa143850
tree077a1be6e02130b253a5bfc82b88e280fec05311tree | snapshot
parent4e2697f5cdc661f71ce2a2b947a63cd4c25712c3commit | diff
optimize 8x8 fdct rounding for accuracy

The commit added a final rounding choice for 8x8 forward dct to get
rid of a sign bias at DC position and improve the accuracry in term
of round trip error for 8x8 fDCT/iDCT.

This commit also enabled forward 8x8 dct test.

Change-Id: Ib67f99b0a24d513e230c7812bc04569d472fdc50
test/fdct8x8_test.cc diff | blob | history
test/test.mk diff | blob | history
vp9/encoder/vp9_dct.c diff | blob | history
Domain: Multimedia / Codec;