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authorMarco <marpan@google.com>2017-01-25 11:39:02 -0800
committerMarco <marpan@google.com>2017-01-25 11:48:09 -0800
commit3b2d08a93b218c110100d9ac2b7e939f3a7c4ed4 (patch)
treed73813a5687d4490673300f46b504a135aa8150d /vp9/encoder/vp9_denoiser.c
parent70a365269326a034c2f3a60dc2424c92da157f1b (diff)
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vp9-denoiser: Modify skip denoising condition for small blocks.
Skip denoising for blocks < 16x16, and for block = 16x16 skip denoising for low noise levels and width > 480 for now. Allow for some speed-up in denoiser. Change-Id: Ib46cefe4741962d145fa08775defea3a9c928567
Diffstat (limited to 'vp9/encoder/vp9_denoiser.c')
-rw-r--r--vp9/encoder/vp9_denoiser.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/vp9/encoder/vp9_denoiser.c b/vp9/encoder/vp9_denoiser.c
index 336abb406..a505d4105 100644
--- a/vp9/encoder/vp9_denoiser.c
+++ b/vp9/encoder/vp9_denoiser.c
@@ -188,7 +188,7 @@ static VP9_DENOISER_DECISION perform_motion_compensation(
VP9_DENOISER *denoiser, MACROBLOCK *mb, BLOCK_SIZE bs,
int increase_denoising, int mi_row, int mi_col, PICK_MODE_CONTEXT *ctx,
int motion_magnitude, int is_skin, int *zeromv_filter, int consec_zeromv,
- int num_spatial_layers) {
+ int num_spatial_layers, int width) {
int sse_diff = ctx->zeromv_sse - ctx->newmv_sse;
MV_REFERENCE_FRAME frame;
MACROBLOCKD *filter_mbd = &mb->e_mbd;
@@ -203,11 +203,11 @@ static VP9_DENOISER_DECISION perform_motion_compensation(
if (is_skin && (motion_magnitude > 0 || consec_zeromv < 4)) return COPY_BLOCK;
- // Avoid denoising for small block (unless motion is small).
- // Small blocks are selected in variance partition (before encoding) and
- // will typically lie on moving areas.
- if (denoiser->denoising_level < kDenHigh && motion_magnitude > 16 &&
- bs <= BLOCK_8X8)
+ // Avoid denoising small blocks. When noise > kDenLow or frame width > 480,
+ // denoise 16x16 blocks.
+ if (bs == BLOCK_8X8 || bs == BLOCK_8X16 || bs == BLOCK_16X8 ||
+ (bs == BLOCK_16X16 && width > 480 &&
+ denoiser->denoising_level <= kDenLow))
return COPY_BLOCK;
// If the best reference frame uses inter-prediction and there is enough of a
@@ -366,7 +366,7 @@ void vp9_denoiser_denoise(VP9_COMP *cpi, MACROBLOCK *mb, int mi_row, int mi_col,
decision = perform_motion_compensation(
denoiser, mb, bs, denoiser->increase_denoising, mi_row, mi_col, ctx,
motion_magnitude, is_skin, &zeromv_filter, consec_zeromv,
- cpi->svc.number_spatial_layers);
+ cpi->svc.number_spatial_layers, cpi->Source->y_width);
if (decision == FILTER_BLOCK) {
decision = vp9_denoiser_filter(