ref: c7da053d4b6e652343cb9e6b7bd5d126ff9b8a6d
parent: c2f6a7df8d500ba540503d042dc1dbc519a2a873
author: Marco <marpan@chromium.org>
date: Sun Nov 1 09:40:05 EST 2015
Move noise level estimate outside denoiser. Source noise level estimate is also useful for setting variance encoder parameters (variance thresholds, qp-delta, mode selection, etc), so allow it to be used also if denoising is not on. Change-Id: I4fe23d47607b4e17a35287057f489c29114beed1
--- a/vp9/encoder/vp9_aq_cyclicrefresh.c
+++ b/vp9/encoder/vp9_aq_cyclicrefresh.c
@@ -490,12 +490,9 @@
cr->rate_ratio_qdelta = 3.0;
} else {cr->rate_ratio_qdelta = 2.0;
-#if CONFIG_VP9_TEMPORAL_DENOISING
- if (cpi->oxcf.noise_sensitivity > 0 &&
- cpi->denoiser.denoising_level >= kMedium)
+ if (cpi->noise_estimate.enabled && cpi->noise_estimate.level >= kMedium)
// Reduce the delta-qp if the estimated source noise is above threshold.
cr->rate_ratio_qdelta = 1.5;
-#endif
}
// Adjust some parameters for low resolutions at low bitrates.
if (cm->width <= 352 &&
--- a/vp9/encoder/vp9_denoiser.c
+++ b/vp9/encoder/vp9_denoiser.c
@@ -323,7 +323,7 @@
struct buf_2d src = mb->plane[0].src;
int is_skin = 0;
- if (bs <= BLOCK_16X16 && denoiser->denoising_level >= kMedium) {+ if (bs <= BLOCK_16X16 && denoiser->denoising_level >= kDenMedium) {// Take center pixel in block to determine is_skin.
const int y_width_shift = (4 << b_width_log2_lookup[bs]) >> 1;
const int y_height_shift = (4 << b_height_log2_lookup[bs]) >> 1;
@@ -343,13 +343,13 @@
mv_col = ctx->best_sse_mv.as_mv.col;
mv_row = ctx->best_sse_mv.as_mv.row;
motion_magnitude = mv_row * mv_row + mv_col * mv_col;
- if (denoiser->denoising_level == kHigh && motion_magnitude < 16) {+ if (denoiser->denoising_level == kDenHigh && motion_magnitude < 16) {denoiser->increase_denoising = 1;
} else {denoiser->increase_denoising = 0;
}
- if (denoiser->denoising_level >= kMedium)
+ if (denoiser->denoising_level >= kDenMedium)
decision = perform_motion_compensation(denoiser, mb, bs,
denoiser->increase_denoising,
mi_row, mi_col, ctx,
@@ -524,27 +524,9 @@
#endif
denoiser->increase_denoising = 0;
denoiser->frame_buffer_initialized = 1;
- vp9_denoiser_init_noise_estimate(denoiser, width, height);
return 0;
}
-void vp9_denoiser_init_noise_estimate(VP9_DENOISER *denoiser,
- int width,
- int height) {- // Denoiser is off by default, i.e., no denoising is performed.
- // Noise level is measured periodically, and if observed to be above
- // thresh_noise_estimate, then denoising is performed.
- denoiser->denoising_level = kLow;
- denoiser->noise_estimate = 0;
- denoiser->noise_estimate_count = 0;
- denoiser->thresh_noise_estimate = 20;
- if (width * height >= 1920 * 1080) {- denoiser->thresh_noise_estimate = 70;
- } else if (width * height >= 1280 * 720) {- denoiser->thresh_noise_estimate = 40;
- }
-}
-
void vp9_denoiser_free(VP9_DENOISER *denoiser) {int i;
denoiser->frame_buffer_initialized = 0;
@@ -558,123 +540,9 @@
vpx_free_frame_buffer(&denoiser->last_source);
}
-void vp9_denoiser_update_noise_estimate(VP9_COMP *const cpi) {- const VP9_COMMON *const cm = &cpi->common;
- CYCLIC_REFRESH *const cr = cpi->cyclic_refresh;
- int frame_period = 10;
- int thresh_consec_zeromv = 8;
- unsigned int thresh_sum_diff = 128;
- int num_frames_estimate = 20;
- int min_blocks_estimate = cm->mi_rows * cm->mi_cols >> 7;
- // Estimate of noise level every frame_period frames.
- // Estimate is between current source and last source.
- if (cm->current_video_frame % frame_period != 0 ||
- cpi->denoiser.last_source.y_buffer == NULL ||
- cpi->resize_pending != 0) {- copy_frame(&cpi->denoiser.last_source, cpi->Source);
- return;
- } else {- int num_samples = 0;
- uint64_t avg_est = 0;
- int bsize = BLOCK_16X16;
- static const unsigned char const_source[16] = {- 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
- 128, 128};
- // Loop over sub-sample of 16x16 blocks of frame, and for blocks that have
- // been encoded as zero/small mv at least x consecutive frames, compute
- // the variance to update estimate of noise in the source.
- const uint8_t *src_y = cpi->Source->y_buffer;
- const int src_ystride = cpi->Source->y_stride;
- const uint8_t *last_src_y = cpi->denoiser.last_source.y_buffer;
- const int last_src_ystride = cpi->denoiser.last_source.y_stride;
- const uint8_t *src_u = cpi->Source->u_buffer;
- const uint8_t *src_v = cpi->Source->v_buffer;
- const int src_uvstride = cpi->Source->uv_stride;
- const int y_width_shift = (4 << b_width_log2_lookup[bsize]) >> 1;
- const int y_height_shift = (4 << b_height_log2_lookup[bsize]) >> 1;
- const int uv_width_shift = y_width_shift >> 1;
- const int uv_height_shift = y_height_shift >> 1;
- int mi_row, mi_col;
- for (mi_row = 0; mi_row < cm->mi_rows; mi_row ++) {- for (mi_col = 0; mi_col < cm->mi_cols; mi_col ++) {- // 16x16 blocks, 1/4 sample of frame.
- if (mi_row % 4 == 0 && mi_col % 4 == 0) {- int bl_index = mi_row * cm->mi_cols + mi_col;
- int bl_index1 = bl_index + 1;
- int bl_index2 = bl_index + cm->mi_cols;
- int bl_index3 = bl_index2 + 1;
- // Only consider blocks that are likely steady background. i.e, have
- // been encoded as zero/low motion x (= thresh_consec_zeromv) frames
- // in a row. consec_zero_mv[] defined for 8x8 blocks, so consider all
- // 4 sub-blocks for 16x16 block. Also, avoid skin blocks.
- const uint8_t ysource =
- src_y[y_height_shift * src_ystride + y_width_shift];
- const uint8_t usource =
- src_u[uv_height_shift * src_uvstride + uv_width_shift];
- const uint8_t vsource =
- src_v[uv_height_shift * src_uvstride + uv_width_shift];
- int is_skin = vp9_skin_pixel(ysource, usource, vsource);
- if (cr->consec_zero_mv[bl_index] > thresh_consec_zeromv &&
- cr->consec_zero_mv[bl_index1] > thresh_consec_zeromv &&
- cr->consec_zero_mv[bl_index2] > thresh_consec_zeromv &&
- cr->consec_zero_mv[bl_index3] > thresh_consec_zeromv &&
- !is_skin) {- // Compute variance.
- unsigned int sse;
- unsigned int variance = cpi->fn_ptr[bsize].vf(src_y,
- src_ystride,
- last_src_y,
- last_src_ystride,
- &sse);
- // Only consider this block as valid for noise measurement if the
- // average term (sse - variance = N * avg^{2}, N = 16X16) of the- // temporal residual is small (avoid effects from lighting change).
- if ((sse - variance) < thresh_sum_diff) {- unsigned int sse2;
- const unsigned int spatial_variance =
- cpi->fn_ptr[bsize].vf(src_y, src_ystride, const_source,
- 0, &sse2);
- avg_est += variance / (10 + spatial_variance);
- num_samples++;
- }
- }
- }
- src_y += 8;
- last_src_y += 8;
- src_u += 4;
- src_v += 4;
- }
- src_y += (src_ystride << 3) - (cm->mi_cols << 3);
- last_src_y += (last_src_ystride << 3) - (cm->mi_cols << 3);
- src_u += (src_uvstride << 2) - (cm->mi_cols << 2);
- src_v += (src_uvstride << 2) - (cm->mi_cols << 2);
- }
- // Update noise estimate if we have at a minimum number of block samples,
- // and avg_est > 0 (avg_est == 0 can happen if the application inputs
- // duplicate frames).
- if (num_samples > min_blocks_estimate && avg_est > 0) {- // Normalize.
- avg_est = (avg_est << 8) / num_samples;
- // Update noise estimate.
- cpi->denoiser.noise_estimate = (3 * cpi->denoiser.noise_estimate +
- avg_est) >> 2;
- cpi->denoiser.noise_estimate_count++;
- if (cpi->denoiser.noise_estimate_count == num_frames_estimate) {- // Reset counter and check noise level condition.
- cpi->denoiser.noise_estimate_count = 0;
- if (cpi->denoiser.noise_estimate >
- (cpi->denoiser.thresh_noise_estimate << 1))
- cpi->denoiser.denoising_level = kHigh;
- else
- if (cpi->denoiser.noise_estimate >
- cpi->denoiser.thresh_noise_estimate)
- cpi->denoiser.denoising_level = kMedium;
- else
- cpi->denoiser.denoising_level = kLow;
- }
- }
- }
- copy_frame(&cpi->denoiser.last_source, cpi->Source);
+void vp9_denoiser_set_noise_level(VP9_DENOISER *denoiser,
+ int noise_level) {+ denoiser->denoising_level = noise_level;
}
#ifdef OUTPUT_YUV_DENOISED
--- a/vp9/encoder/vp9_denoiser.h
+++ b/vp9/encoder/vp9_denoiser.h
@@ -27,9 +27,9 @@
} VP9_DENOISER_DECISION;
typedef enum vp9_denoiser_level {- kLow,
- kMedium,
- kHigh
+ kDenLow,
+ kDenMedium,
+ kDenHigh
} VP9_DENOISER_LEVEL;
typedef struct vp9_denoiser {@@ -39,9 +39,6 @@
int increase_denoising;
int frame_buffer_initialized;
VP9_DENOISER_LEVEL denoising_level;
- int noise_estimate;
- int thresh_noise_estimate;
- int noise_estimate_count;
} VP9_DENOISER;
struct VP9_COMP;
@@ -82,11 +79,8 @@
void vp9_denoiser_free(VP9_DENOISER *denoiser);
-void vp9_denoiser_init_noise_estimate(VP9_DENOISER *denoiser,
- int width,
- int height);
-
-void vp9_denoiser_update_noise_estimate(struct VP9_COMP *const cpi);
+void vp9_denoiser_set_noise_level(VP9_DENOISER *denoiser,
+ int noise_level);
#ifdef __cplusplus
} // extern "C"
--- a/vp9/encoder/vp9_encodeframe.c
+++ b/vp9/encoder/vp9_encodeframe.c
@@ -489,16 +489,14 @@
thresholds[2] = threshold_base >> 2;
thresholds[3] = threshold_base << 2;
} else {-#if CONFIG_VP9_TEMPORAL_DENOISING
- if (cpi->oxcf.noise_sensitivity > 0) {- // Increase base variance threshold is estimated noise level is high.
- if (cpi->denoiser.denoising_level == kHigh)
- threshold_base = threshold_base << 2;
- else
- if (cpi->denoiser.denoising_level == kMedium)
- threshold_base = threshold_base << 1;
- }
-#endif
+ // Increase base variance threshold if estimated noise level is high.
+ if (cpi->noise_estimate.enabled) {+ if (cpi->noise_estimate.level == kHigh)
+ threshold_base = threshold_base << 2;
+ else
+ if (cpi->noise_estimate.level == kMedium)
+ threshold_base = threshold_base << 1;
+ }
thresholds[1] = threshold_base;
if (cm->width <= 352 && cm->height <= 288) {thresholds[0] = threshold_base >> 2;
--- a/vp9/encoder/vp9_encoder.c
+++ b/vp9/encoder/vp9_encoder.c
@@ -47,6 +47,7 @@
#include "vp9/encoder/vp9_ethread.h"
#include "vp9/encoder/vp9_firstpass.h"
#include "vp9/encoder/vp9_mbgraph.h"
+#include "vp9/encoder/vp9_noise_estimate.h"
#include "vp9/encoder/vp9_picklpf.h"
#include "vp9/encoder/vp9_ratectrl.h"
#include "vp9/encoder/vp9_rd.h"
@@ -805,6 +806,8 @@
cpi->ref_frame_flags = 0;
init_buffer_indices(cpi);
+
+ vp9_noise_estimate_init(&cpi->noise_estimate, cm->width, cm->height);
}
static void set_rc_buffer_sizes(RATE_CONTROL *rc,
@@ -3160,6 +3163,7 @@
// TODO(agrange) Scale cpi->max_mv_magnitude if frame-size has changed.
set_mv_search_params(cpi);
+ vp9_noise_estimate_init(&cpi->noise_estimate, cm->width, cm->height);
#if CONFIG_VP9_TEMPORAL_DENOISING
// Reset the denoiser on the resized frame.
if (cpi->oxcf.noise_sensitivity > 0) {@@ -3241,21 +3245,18 @@
// Avoid scaling last_source unless its needed.
// Last source is currently only used for screen-content mode,
- // or if partition_search_type == SOURCE_VAR_BASED_PARTITION.
+ // if partition_search_type == SOURCE_VAR_BASED_PARTITION, or if noise
+ // estimation is enabled.
if (cpi->unscaled_last_source != NULL &&
(cpi->oxcf.content == VP9E_CONTENT_SCREEN ||
- cpi->sf.partition_search_type == SOURCE_VAR_BASED_PARTITION))
+ cpi->sf.partition_search_type == SOURCE_VAR_BASED_PARTITION ||
+ cpi->noise_estimate.enabled))
cpi->Last_Source = vp9_scale_if_required(cm,
cpi->unscaled_last_source,
&cpi->scaled_last_source,
(cpi->oxcf.pass == 0));
-#if CONFIG_VP9_TEMPORAL_DENOISING
- if (cpi->oxcf.noise_sensitivity > 0 &&
- cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ) {- vp9_denoiser_update_noise_estimate(cpi);
- }
-#endif
+ vp9_update_noise_estimate(cpi);
if (cpi->oxcf.pass == 0 &&
cpi->oxcf.rc_mode == VPX_CBR &&
--- a/vp9/encoder/vp9_encoder.h
+++ b/vp9/encoder/vp9_encoder.h
@@ -35,6 +35,7 @@
#include "vp9/encoder/vp9_lookahead.h"
#include "vp9/encoder/vp9_mbgraph.h"
#include "vp9/encoder/vp9_mcomp.h"
+#include "vp9/encoder/vp9_noise_estimate.h"
#include "vp9/encoder/vp9_quantize.h"
#include "vp9/encoder/vp9_ratectrl.h"
#include "vp9/encoder/vp9_rd.h"
@@ -489,6 +490,8 @@
int resize_avg_qp;
int resize_buffer_underflow;
int resize_count;
+
+ NOISE_ESTIMATE noise_estimate;
// VAR_BASED_PARTITION thresholds
// 0 - threshold_64x64; 1 - threshold_32x32;
--- /dev/null
+++ b/vp9/encoder/vp9_noise_estimate.c
@@ -1,0 +1,210 @@
+/*
+ * Copyright (c) 2015 The WebM project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <assert.h>
+#include <limits.h>
+#include <math.h>
+
+#include "./vpx_dsp_rtcd.h"
+#include "vpx_dsp/vpx_dsp_common.h"
+#include "vpx_scale/yv12config.h"
+#include "vpx/vpx_integer.h"
+#include "vp9/common/vp9_reconinter.h"
+#include "vp9/encoder/vp9_context_tree.h"
+#include "vp9/encoder/vp9_noise_estimate.h"
+#include "vp9/encoder/vp9_encoder.h"
+
+void vp9_noise_estimate_init(NOISE_ESTIMATE *const ne,
+ int width,
+ int height) {+ ne->enabled = 0;
+ ne->level = kLow;
+ ne->value = 0;
+ ne->count = 0;
+ ne->thresh = 20;
+ if (width * height >= 1920 * 1080) {+ ne->thresh = 70;
+ } else if (width * height >= 1280 * 720) {+ ne->thresh = 40;
+ }
+}
+
+int enable_noise_estimation(VP9_COMP *const cpi) {+ // Enable noise estimation if denoising is on (and cyclic refresh, since
+ // noise estimate is currently using a struct defined in cyclic refresh).
+#if CONFIG_VP9_TEMPORAL_DENOISING
+ if (cpi->oxcf.noise_sensitivity > 0 &&
+ cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ)
+ return 1;
+#endif
+ // Only allow noise estimate under certain encoding mode.
+ // Enabled for 1 pass CBR, speed >=5, and if resolution is same as original.
+ // Not enabled for SVC mode and screen_content_mode.
+ // Not enabled for low resolutions.
+ if (cpi->oxcf.pass == 0 &&
+ cpi->oxcf.rc_mode == VPX_CBR &&
+ cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ &&
+ cpi->oxcf.speed >= 5 &&
+ cpi->resize_state == ORIG &&
+ !cpi->use_svc &&
+ cpi->oxcf.content != VP9E_CONTENT_SCREEN &&
+ cpi->common.width > 352 &&
+ cpi->common.height > 288)
+ return 1;
+ else
+ return 0;
+}
+
+static void copy_frame(YV12_BUFFER_CONFIG * const dest,
+ const YV12_BUFFER_CONFIG * const src) {+ int r;
+ const uint8_t *srcbuf = src->y_buffer;
+ uint8_t *destbuf = dest->y_buffer;
+
+ assert(dest->y_width == src->y_width);
+ assert(dest->y_height == src->y_height);
+
+ for (r = 0; r < dest->y_height; ++r) {+ memcpy(destbuf, srcbuf, dest->y_width);
+ destbuf += dest->y_stride;
+ srcbuf += src->y_stride;
+ }
+}
+
+void vp9_update_noise_estimate(VP9_COMP *const cpi) {+ const VP9_COMMON *const cm = &cpi->common;
+ CYCLIC_REFRESH *const cr = cpi->cyclic_refresh;
+ NOISE_ESTIMATE *const ne = &cpi->noise_estimate;
+ // Estimate of noise level every frame_period frames.
+ int frame_period = 10;
+ int thresh_consec_zeromv = 8;
+ unsigned int thresh_sum_diff = 128;
+ int num_frames_estimate = 20;
+ int min_blocks_estimate = cm->mi_rows * cm->mi_cols >> 7;
+ // Estimate is between current source and last source.
+ YV12_BUFFER_CONFIG *last_source = cpi->Last_Source;
+#if CONFIG_VP9_TEMPORAL_DENOISING
+ if (cpi->oxcf.noise_sensitivity > 0)
+ last_source = &cpi->denoiser.last_source;
+#endif
+ ne->enabled = enable_noise_estimation(cpi);
+ if (!ne->enabled ||
+ cm->current_video_frame % frame_period != 0 ||
+ last_source == NULL) {+#if CONFIG_VP9_TEMPORAL_DENOISING
+ if (cpi->oxcf.noise_sensitivity > 0)
+ copy_frame(&cpi->denoiser.last_source, cpi->Source);
+#endif
+ return;
+ } else {+ int num_samples = 0;
+ uint64_t avg_est = 0;
+ int bsize = BLOCK_16X16;
+ static const unsigned char const_source[16] = {+ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
+ 128, 128};
+ // Loop over sub-sample of 16x16 blocks of frame, and for blocks that have
+ // been encoded as zero/small mv at least x consecutive frames, compute
+ // the variance to update estimate of noise in the source.
+ const uint8_t *src_y = cpi->Source->y_buffer;
+ const int src_ystride = cpi->Source->y_stride;
+ const uint8_t *last_src_y = last_source->y_buffer;
+ const int last_src_ystride = last_source->y_stride;
+ const uint8_t *src_u = cpi->Source->u_buffer;
+ const uint8_t *src_v = cpi->Source->v_buffer;
+ const int src_uvstride = cpi->Source->uv_stride;
+ const int y_width_shift = (4 << b_width_log2_lookup[bsize]) >> 1;
+ const int y_height_shift = (4 << b_height_log2_lookup[bsize]) >> 1;
+ const int uv_width_shift = y_width_shift >> 1;
+ const int uv_height_shift = y_height_shift >> 1;
+ int mi_row, mi_col;
+ for (mi_row = 0; mi_row < cm->mi_rows; mi_row++) {+ for (mi_col = 0; mi_col < cm->mi_cols; mi_col++) {+ // 16x16 blocks, 1/4 sample of frame.
+ if (mi_row % 4 == 0 && mi_col % 4 == 0) {+ int bl_index = mi_row * cm->mi_cols + mi_col;
+ int bl_index1 = bl_index + 1;
+ int bl_index2 = bl_index + cm->mi_cols;
+ int bl_index3 = bl_index2 + 1;
+ // Only consider blocks that are likely steady background. i.e, have
+ // been encoded as zero/low motion x (= thresh_consec_zeromv) frames
+ // in a row. consec_zero_mv[] defined for 8x8 blocks, so consider all
+ // 4 sub-blocks for 16x16 block. Also, avoid skin blocks.
+ const uint8_t ysource =
+ src_y[y_height_shift * src_ystride + y_width_shift];
+ const uint8_t usource =
+ src_u[uv_height_shift * src_uvstride + uv_width_shift];
+ const uint8_t vsource =
+ src_v[uv_height_shift * src_uvstride + uv_width_shift];
+ int is_skin = vp9_skin_pixel(ysource, usource, vsource);
+ if (cr->consec_zero_mv[bl_index] > thresh_consec_zeromv &&
+ cr->consec_zero_mv[bl_index1] > thresh_consec_zeromv &&
+ cr->consec_zero_mv[bl_index2] > thresh_consec_zeromv &&
+ cr->consec_zero_mv[bl_index3] > thresh_consec_zeromv &&
+ !is_skin) {+ // Compute variance.
+ unsigned int sse;
+ unsigned int variance = cpi->fn_ptr[bsize].vf(src_y,
+ src_ystride,
+ last_src_y,
+ last_src_ystride,
+ &sse);
+ // Only consider this block as valid for noise measurement if the
+ // average term (sse - variance = N * avg^{2}, N = 16X16) of the+ // temporal residual is small (avoid effects from lighting change).
+ if ((sse - variance) < thresh_sum_diff) {+ unsigned int sse2;
+ const unsigned int spatial_variance =
+ cpi->fn_ptr[bsize].vf(src_y, src_ystride, const_source,
+ 0, &sse2);
+ avg_est += variance / (10 + spatial_variance);
+ num_samples++;
+ }
+ }
+ }
+ src_y += 8;
+ last_src_y += 8;
+ src_u += 4;
+ src_v += 4;
+ }
+ src_y += (src_ystride << 3) - (cm->mi_cols << 3);
+ last_src_y += (last_src_ystride << 3) - (cm->mi_cols << 3);
+ src_u += (src_uvstride << 2) - (cm->mi_cols << 2);
+ src_v += (src_uvstride << 2) - (cm->mi_cols << 2);
+ }
+ // Update noise estimate if we have at a minimum number of block samples,
+ // and avg_est > 0 (avg_est == 0 can happen if the application inputs
+ // duplicate frames).
+ if (num_samples > min_blocks_estimate && avg_est > 0) {+ // Normalize.
+ avg_est = (avg_est << 8) / num_samples;
+ // Update noise estimate.
+ ne->value = (3 * ne->value + avg_est) >> 2;
+ ne->count++;
+ if (ne->count == num_frames_estimate) {+ // Reset counter and check noise level condition.
+ ne->count = 0;
+ if (ne->value > (ne->thresh << 1))
+ ne->level = kHigh;
+ else
+ if (ne->value > ne->thresh)
+ ne->level = kMedium;
+ else
+ ne->level = kLow;
+ }
+ }
+ }
+#if CONFIG_VP9_TEMPORAL_DENOISING
+ if (cpi->oxcf.noise_sensitivity > 0) {+ copy_frame(&cpi->denoiser.last_source, cpi->Source);
+ vp9_denoiser_set_noise_level(&cpi->denoiser, ne->level);
+ }
+#endif
+}
--- /dev/null
+++ b/vp9/encoder/vp9_noise_estimate.h
@@ -1,0 +1,52 @@
+/*
+ * Copyright (c) 2012 The WebM project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef VP9_ENCODER_NOISE_ESTIMATE_H_
+#define VP9_ENCODER_NOISE_ESTIMATE_H_
+
+#include "vp9/encoder/vp9_block.h"
+#include "vp9/encoder/vp9_skin_detection.h"
+#include "vpx_scale/yv12config.h"
+
+#if CONFIG_VP9_TEMPORAL_DENOISING
+#include "vp9/encoder/vp9_denoiser.h"
+#endif
+
+#ifdef __cplusplus
+extern "C" {+#endif
+
+typedef enum noise_level {+ kLow,
+ kMedium,
+ kHigh
+} NOISE_LEVEL;
+
+typedef struct noise_estimate {+ int enabled;
+ NOISE_LEVEL level;
+ int value;
+ int thresh;
+ int count;
+} NOISE_ESTIMATE;
+
+struct VP9_COMP;
+
+void vp9_noise_estimate_init(NOISE_ESTIMATE *const ne,
+ int width,
+ int height);
+
+void vp9_update_noise_estimate(struct VP9_COMP *const cpi);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // VP9_ENCODER_NOISE_ESTIMATE_H_
--- a/vp9/encoder/vp9_pickmode.c
+++ b/vp9/encoder/vp9_pickmode.c
@@ -1073,12 +1073,9 @@
// Reduce the intra cost penalty for small blocks (<=16x16).
int reduction_fac =
(bsize <= BLOCK_16X16) ? ((bsize <= BLOCK_8X8) ? 4 : 2) : 0;
-#if CONFIG_VP9_TEMPORAL_DENOISING
- if (cpi->oxcf.noise_sensitivity > 0 &&
- cpi->denoiser.denoising_level == kHigh)
+ if (cpi->noise_estimate.enabled && cpi->noise_estimate.level == kHigh)
// Don't reduce intra cost penalty if estimated noise level is high.
reduction_fac = 0;
-#endif
return vp9_get_intra_cost_penalty(
cm->base_qindex, cm->y_dc_delta_q, cm->bit_depth) >> reduction_fac;
}
--- a/vp9/vp9cx.mk
+++ b/vp9/vp9cx.mk
@@ -82,6 +82,8 @@
VP9_CX_SRCS-yes += encoder/vp9_aq_complexity.h
VP9_CX_SRCS-yes += encoder/vp9_skin_detection.c
VP9_CX_SRCS-yes += encoder/vp9_skin_detection.h
+VP9_CX_SRCS-yes += encoder/vp9_noise_estimate.c
+VP9_CX_SRCS-yes += encoder/vp9_noise_estimate.h
ifeq ($(CONFIG_VP9_POSTPROC),yes)
VP9_CX_SRCS-$(CONFIG_INTERNAL_STATS) += common/vp9_postproc.h
VP9_CX_SRCS-$(CONFIG_INTERNAL_STATS) += common/vp9_postproc.c