Commit 04a99cb3 authored by Marco's avatar Marco Committed by Marco

Bias against non-zero mv for large blocks.

Change is only for real-time mode, speed > 5, and non-screen content mode.
Bias is based on block size and motion vector level (motion above some threshold).

Helps to improves stability in background from lightning changes.
PSNR/SSIM metrics on RTC set almost no change/neutral (within +/- 0.1).

Change-Id: I7eac13c1ae10be4ab1f40acc7f9f1df5653ece9d
parent d73e6cef
......@@ -1477,6 +1477,20 @@ void vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x,
this_rdc.rate += ref_frame_cost[ref_frame];
this_rdc.rdcost = RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist);
// Bias against non-zero (above some threshold) motion for large blocks.
// This is temporary fix to avoid selection of large mv for big blocks.
if (cpi->oxcf.speed > 5 &&
cpi->oxcf.content != VP9E_CONTENT_SCREEN &&
(frame_mv[this_mode][ref_frame].as_mv.row > 64 ||
frame_mv[this_mode][ref_frame].as_mv.row < -64 ||
frame_mv[this_mode][ref_frame].as_mv.col > 64 ||
frame_mv[this_mode][ref_frame].as_mv.col < -64)) {
if (bsize == BLOCK_64X64)
this_rdc.rdcost = this_rdc.rdcost << 1;
else if (bsize >= BLOCK_32X32)
this_rdc.rdcost = 3 * this_rdc.rdcost >> 1;
}
// Skipping checking: test to see if this block can be reconstructed by
// prediction only.
if (cpi->allow_encode_breakout) {
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment