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authorJingning Han <jingning@google.com>2013-02-08 16:19:42 -0800
committerJingning Han <jingning@google.com>2013-02-11 10:42:39 -0800
commit57e995ff9c01d8c09af50439c8c88876a234d205 (patch)
tree4da6003fd75c2f416a823eee29b501bc2f49de50 /vp9/encoder/vp9_rdopt.c
parent5f2e8449b7247bf110dbacc2cacb9ce0a16bbe30 (diff)
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butterfly inverse 4x4 ADST
fixed format issues. Implement the inverse 4x4 ADST using 9 multiplications. For this particular dimension, the original ADST transform can be factorized into simpler operations, hence is retained. Change-Id: Ie5d9749942468df299ab74e90d92cd899569e960
Diffstat (limited to 'vp9/encoder/vp9_rdopt.c')
-rw-r--r--vp9/encoder/vp9_rdopt.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/vp9/encoder/vp9_rdopt.c b/vp9/encoder/vp9_rdopt.c
index 317209be7..29893b819 100644
--- a/vp9/encoder/vp9_rdopt.c
+++ b/vp9/encoder/vp9_rdopt.c
@@ -1170,7 +1170,11 @@ static int64_t rd_pick_intra4x4block(VP9_COMP *cpi, MACROBLOCK *x, BLOCK *be,
// inverse transform
if (best_tx_type != DCT_DCT)
+#if CONFIG_INTHT4X4
+ vp9_short_iht4x4(best_dqcoeff, b->diff, 32, best_tx_type);
+#else
vp9_ihtllm(best_dqcoeff, b->diff, 32, best_tx_type, 4, b->eob);
+#endif
else
xd->inv_xform4x4_x8(best_dqcoeff, b->diff, 32);