From 62a78f0342ca45fc295aa63bbc4d6974b0c57da7 Mon Sep 17 00:00:00 2001 From: Yaowu Xu Date: Wed, 15 Feb 2012 15:01:35 -0800 Subject: re-scaled 2nd order haar transform During the work of extend_qrange, we have rolled a factor of 2 from quantization/dequatnization into 2nd order walsh-hadamard transform. This commit does the same for the 2nd order haar transform. so they can share the same quantizaiton process as the 2nd order WHT. Change-Id: I734af4a20ea8149a01b5b1971a065092977dfe33 --- vp8/common/idctllm.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'vp8/common') diff --git a/vp8/common/idctllm.c b/vp8/common/idctllm.c index 22c9baa46..e21af6871 100644 --- a/vp8/common/idctllm.c +++ b/vp8/common/idctllm.c @@ -487,10 +487,10 @@ void vp8_short_ihaar2x2_c(short *input, short *output, int pitch) op[i] = 0; } - op[0] = (ip[0] + ip[1] + ip[4] + ip[8])>>2; - op[1] = (ip[0] - ip[1] + ip[4] - ip[8])>>2; - op[4] = (ip[0] + ip[1] - ip[4] - ip[8])>>2; - op[8] = (ip[0] - ip[1] - ip[4] + ip[8])>>2; + op[0] = (ip[0] + ip[1] + ip[4] + ip[8])>>1; + op[1] = (ip[0] - ip[1] + ip[4] - ip[8])>>1; + op[4] = (ip[0] + ip[1] - ip[4] - ip[8])>>1; + op[8] = (ip[0] - ip[1] - ip[4] + ip[8])>>1; } void vp8_short_ihaar2x2_1_c(short *input, short *output, int pitch) -- cgit v1.2.3