From: Yaowu Xu <yaowu@google.com>
Date: Tue, 28 Feb 2012 19:49:12 +0000 (-0800)
Subject: Try to enable 8x8 tranform for smaller resolution
X-Git-Tag: v1.3.0~1217^2~380^2~25^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=42891098f36ecbc2aea611ecea778fdf38d834ac;p=platform%2Fupstream%2Flibvpx.git

Try to enable 8x8 tranform for smaller resolution

The commit overall on derf test is break even to very slightly positive
comparing to all 4x4 transform.

Change-Id: I2a7c19599aa54c2d3a5b35db0dc891ba8a6a2b26
---

diff --git a/vp8/encoder/ratectrl.c b/vp8/encoder/ratectrl.c
index 05dc09e..a501c3e 100644
--- a/vp8/encoder/ratectrl.c
+++ b/vp8/encoder/ratectrl.c
@@ -252,7 +252,8 @@ void vp8_setup_key_frame(VP8_COMP *cpi)
 void vp8_setup_inter_frame(VP8_COMP *cpi)
 {
 #if CONFIG_T8X8
-    if(cpi->common.Width * cpi->common.Height > 640*360)
+    if(cpi->common.Width * cpi->common.Height > 640*360
+        ||cpi->this_frame_target < 7 * cpi->common.MBs)
         cpi->common.txfm_mode = ALLOW_8X8;
     else
         cpi->common.txfm_mode = ONLY_4X4;