From 0e9a6ed72a06dd367049d33ec656f7e3bf2211a2 Mon Sep 17 00:00:00 2001
From: Yunqing Wang <yunqingwang@google.com>
Date: Wed, 13 Jul 2011 14:51:02 -0400
Subject: [PATCH] Add improvements made in good-quality mode to real-time mode
Several improvements we made in good-quality mode can be added
into real-time mode to speed up encoding in speed 1, 2, and 3
with small quality loss. Tests using tulip clip showed:
--rt --cpu-used=-1
(before change)
PSNR: 38.028
time: 1m33.195s
(after change)
PSNR: 38.014
time: 1m20.851s
--rt --cpu-used=-2
(before change)
PSNR: 37.773
time: 0m57.650s
(after change)
PSNR: 37.759
time: 0m54.594s
--rt --cpu-used=-3
(before change)
PSNR: 37.392
time: 0m42.865s
(after change)
PSNR: 37.375
time: 0m41.949s
Change-Id: I76ab2a38d72bc5efc91f6fe20d332c472f6510c9
---
vp8/encoder/onyx_if.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/vp8/encoder/onyx_if.c b/vp8/encoder/onyx_if.c
index d2b0bf36aa..85d63563a4 100644
--- a/vp8/encoder/onyx_if.c
+++ b/vp8/encoder/onyx_if.c
@@ -898,6 +898,10 @@ void vp8_set_speed_features(VP8_COMP *cpi)
sf->improved_quant = 0;
sf->improved_dct = 0;
+
+ sf->use_fastquant_for_pick = 1;
+ sf->no_skip_block4x4_search = 0;
+ sf->first_step = 1;
}
if (Speed > 1)
--
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