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Merge "Add bias to zero/small motion for noisy source."

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Marco Paniconi 2015-11-10 23:10:31 +00:00 committed by Gerrit Code Review
commit 79a194692f
1 changed files with 23 additions and 11 deletions
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34
vp9/encoder/vp9_pickmode.c
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@ -1483,18 +1483,30 @@ 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;
cpi->oxcf.content != VP9E_CONTENT_SCREEN) {
// 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 (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;
}
// If noise estimation is enabled, and estimated level is above threshold,
// add a bias to LAST reference with small motion, for large blocks.
if (cpi->noise_estimate.enabled &&
cpi->noise_estimate.level >= kMedium &&
bsize >= BLOCK_32X32 &&
ref_frame == LAST_FRAME &&
frame_mv[this_mode][ref_frame].as_mv.row < 8 &&
frame_mv[this_mode][ref_frame].as_mv.row > -8 &&
frame_mv[this_mode][ref_frame].as_mv.col < 8 &&
frame_mv[this_mode][ref_frame].as_mv.col > -8)
this_rdc.rdcost = 7 * this_rdc.rdcost >> 3;
}
// Skipping checking: test to see if this block can be reconstructed by