From 2536a89a4f6398b9b48e5443f8259b9968ae9da6 Mon Sep 17 00:00:00 2001
From: Jingning Han <jingning@google.com>
Date: Wed, 2 Apr 2014 22:44:06 -0700
Subject: [PATCH] Adjust key frame quantization index for rtc coding
This commit slightly increases the bit allocation for key frame. This
improves speed -5 coding performance by 2.77% with aq-mode=0 and by
2.78% with aq-mode=3.
Change-Id: Iaa3e777f80b9706306606af06e89852bac146659
---
vp9/encoder/vp9_speed_features.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/vp9/encoder/vp9_speed_features.c b/vp9/encoder/vp9_speed_features.c
index 6f1cdcae97..0d9007b94b 100644
--- a/vp9/encoder/vp9_speed_features.c
+++ b/vp9/encoder/vp9_speed_features.c
@@ -244,10 +244,10 @@ static void set_rt_speed_feature(VP9_COMMON *cm,
sf->min_partition_size = BLOCK_8X8;
sf->partition_check =
(cm->current_video_frame % sf->last_partitioning_redo_frequency == 1);
- sf->force_ref_frame =
+ sf->force_ref_frame = cm->frame_type == KEY_FRAME ||
(cm->current_video_frame %
(sf->last_partitioning_redo_frequency << 1) == 1);
- sf->max_delta_qindex = 15;
+ sf->max_delta_qindex = (cm->frame_type == KEY_FRAME) ? 20 : 15;
sf->partition_search_type = REFERENCE_PARTITION;
sf->use_nonrd_pick_mode = 1;
sf->search_method = FAST_DIAMOND;
--
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