From 4ce70e8847f73e70ad3e2ffa5ce3773b06addac0 Mon Sep 17 00:00:00 2001 From: Jingning Han Date: Wed, 11 Feb 2015 10:51:50 -0800 Subject: [PATCH] Add ref frame rate cost to non-RD mode decision This commit adds a heuristic rate cost of reference frame to the non-RD mode decision. It improves the compression performance of speed -6 by 0.31% and speed -5 by 0.69%. Change-Id: If7f3b45519d49b2cb640bcb7316a254efc8be446 --- vp9/encoder/vp9_pickmode.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/vp9/encoder/vp9_pickmode.c b/vp9/encoder/vp9_pickmode.c index 70e90b6..d24e4c7 100644 --- a/vp9/encoder/vp9_pickmode.c +++ b/vp9/encoder/vp9_pickmode.c @@ -577,6 +577,9 @@ static const PREDICTION_MODE inter_mode_set[INTER_MODES] = { ZEROMV, NEARESTMV, NEARMV, NEWMV, }; +static const int ref_frame_cost[MAX_REF_FRAMES] = { + 1235, 229, 530, 615, +}; // TODO(jingning) placeholder for inter-frame non-RD mode decision. // this needs various further optimizations. to be continued.. void vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x, @@ -865,6 +868,7 @@ void vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x, this_rdc.rate += rate_mv; this_rdc.rate += cpi->inter_mode_cost[mbmi->mode_context[ref_frame]] [INTER_OFFSET(this_mode)]; + this_rdc.rate += ref_frame_cost[ref_frame]; this_rdc.rdcost = RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist); @@ -971,6 +975,7 @@ void vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x, this_rdc.rate = args.rate; this_rdc.dist = args.dist; this_rdc.rate += cpi->mbmode_cost[this_mode]; + this_rdc.rate += ref_frame_cost[INTRA_FRAME]; this_rdc.rate += intra_cost_penalty; this_rdc.rdcost = RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist); -- 2.7.4