From 4664b219a298387c009b393de2c2a023adfaa741 Mon Sep 17 00:00:00 2001
From: Guillaume Martres <smarter3@gmail.com>
Date: Sun, 6 Apr 2014 01:07:53 +0200
Subject: [PATCH] vp9_ratectrl: change ARF overlays rate correction factor
ARF overlays now use the same rate correction factor as regular inter
frames, further testing would be needed to see if it makes sense to use
a completely separate rate correction factor for ARF overlays.
$ vpxenc --cpu-used=5 --fps=50/1 --target-bitrate=2000
parkjoy.y4m -o out.webm
=> Before: 3356 kb/s
=> After: 2271 kb/s
Change-Id: I73e4defa615ba7a8a2bdb845864f4b1721cbbffe
---
vp9/encoder/vp9_ratectrl.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/vp9/encoder/vp9_ratectrl.c b/vp9/encoder/vp9_ratectrl.c
index 26e89addfb..c033b2fb6b 100644
--- a/vp9/encoder/vp9_ratectrl.c
+++ b/vp9/encoder/vp9_ratectrl.c
@@ -272,6 +272,7 @@ static double get_rate_correction_factor(const VP9_COMP *cpi) {
return cpi->rc.key_frame_rate_correction_factor;
} else {
if ((cpi->refresh_alt_ref_frame || cpi->refresh_golden_frame) &&
+ !cpi->rc.is_src_frame_alt_ref &&
!(cpi->use_svc && cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER))
return cpi->rc.gf_rate_correction_factor;
else
@@ -284,6 +285,7 @@ static void set_rate_correction_factor(VP9_COMP *cpi, double factor) {
cpi->rc.key_frame_rate_correction_factor = factor;
} else {
if ((cpi->refresh_alt_ref_frame || cpi->refresh_golden_frame) &&
+ !cpi->rc.is_src_frame_alt_ref &&
!(cpi->use_svc && cpi->oxcf.end_usage == USAGE_STREAM_FROM_SERVER))
cpi->rc.gf_rate_correction_factor = factor;
else
--
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