shithub: libvpx

Download patch

ref: f94124cf3127795544cd8e1772ebf3d31a80dda0
parent: 79dc6c03932079d0067e1b4056feae361818ff49
author: Marco <[email protected]>
date: Fri Mar 25 07:34:56 EDT 2016

vp9: 1 pass vbr mode at speed 5: switch to use mv.search to NSTEP.

Change only affects 1 pass, vbr, speed = 5 (real-time mode).

Some improvement for high motion content.
AvgPSNR/SSIM metrics for ytlive set all up, on average ~2%,
some clips (high motion ones) up 4/5%.

Encoder speed down: on mynintendo_x1.1280_720.y4m: 47fps -> 44fps.

Change-Id: I9e3eaa6392dcb6b5b44ee6f43004f97ba859bc11

--- a/vp9/encoder/vp9_speed_features.c

+++ b/vp9/encoder/vp9_speed_features.c

@@ -400,6 +400,8 @@

     sf->mode_search_skip_flags = FLAG_SKIP_INTRA_DIRMISMATCH;

     sf->tx_size_search_method = is_keyframe ? USE_LARGESTALL : USE_TX_8X8;

     sf->simple_model_rd_from_var = 1;

+    if (cpi->oxcf.rc_mode == VPX_VBR)

+      sf->mv.search_method = NSTEP;

     if (!is_keyframe) {

       int i;