ref: 91ccad2179f11d4d5fef625fdef2e7a2c8604dee
parent: 6a2e3760d7e5c302671b5e2558d695fc27e3ee6d
parent: 94ae0430d28c7204af0ee911e90e598542c65fdc
author: Marco Paniconi <marpan@google.com>
date: Thu Jun 26 09:03:49 EDT 2014
Merge "vp8: Add temporal denoising for UV-channel."
--- a/vp8/common/rtcd_defs.pl
+++ b/vp8/common/rtcd_defs.pl
@@ -552,6 +552,9 @@
if (vpx_config("CONFIG_TEMPORAL_DENOISING") eq "yes") {add_proto qw/int vp8_denoiser_filter/, "unsigned char *mc_running_avg_y, int mc_avg_y_stride, unsigned char *running_avg_y, int avg_y_stride, unsigned char *sig, int sig_stride, unsigned int motion_magnitude, int increase_denoising";
specialize qw/vp8_denoiser_filter sse2 neon/;
+ add_proto qw/int vp8_denoiser_filter_uv/, "unsigned char *mc_running_avg, int mc_avg_stride, unsigned char *running_avg, int avg_stride, unsigned char *sig, int sig_stride, unsigned int motion_magnitude, int increase_denoising";
+ specialize qw/vp8_denoiser_filter_uv sse2/;
+
}
# End of encoder only functions
--- a/vp8/encoder/denoising.c
+++ b/vp8/encoder/denoising.c
@@ -191,6 +191,148 @@
return FILTER_BLOCK;
}
+int vp8_denoiser_filter_uv_c(unsigned char *mc_running_avg_uv,
+ int mc_avg_uv_stride,
+ unsigned char *running_avg_uv,
+ int avg_uv_stride,
+ unsigned char *sig,
+ int sig_stride,
+ unsigned int motion_magnitude,
+ int increase_denoising) {+ unsigned char *running_avg_uv_start = running_avg_uv;
+ unsigned char *sig_start = sig;
+ int sum_diff_thresh;
+ int r, c;
+ int sum_diff = 0;
+ int sum_block = 0;
+ int adj_val[3] = {3, 4, 6};+ int shift_inc1 = 0;
+ int shift_inc2 = 1;
+ /* If motion_magnitude is small, making the denoiser more aggressive by
+ * increasing the adjustment for each level. Add another increment for
+ * blocks that are labeled for increase denoising. */
+ if (motion_magnitude <= MOTION_MAGNITUDE_THRESHOLD_UV) {+ if (increase_denoising) {+ shift_inc1 = 1;
+ shift_inc2 = 2;
+ }
+ adj_val[0] += shift_inc2;
+ adj_val[1] += shift_inc2;
+ adj_val[2] += shift_inc2;
+ }
+
+ // Avoid denoising color signal if its close to average level.
+ for (r = 0; r < 8; ++r) {+ for (c = 0; c < 8; ++c) {+ sum_block += sig[c];
+ }
+ sig += sig_stride;
+ }
+ if (abs(sum_block - (128 * 8 * 8)) < SUM_DIFF_FROM_AVG_THRESH_UV) {+ return COPY_BLOCK;
+ }
+
+ sig -= sig_stride * 8;
+ for (r = 0; r < 8; ++r) {+ for (c = 0; c < 8; ++c) {+ int diff = 0;
+ int adjustment = 0;
+ int absdiff = 0;
+
+ diff = mc_running_avg_uv[c] - sig[c];
+ absdiff = abs(diff);
+
+ // When |diff| <= |3 + shift_inc1|, use pixel value from
+ // last denoised raw.
+ if (absdiff <= 3 + shift_inc1) {+ running_avg_uv[c] = mc_running_avg_uv[c];
+ sum_diff += diff;
+ } else {+ if (absdiff >= 4 && absdiff <= 7)
+ adjustment = adj_val[0];
+ else if (absdiff >= 8 && absdiff <= 15)
+ adjustment = adj_val[1];
+ else
+ adjustment = adj_val[2];
+ if (diff > 0) {+ if ((sig[c] + adjustment) > 255)
+ running_avg_uv[c] = 255;
+ else
+ running_avg_uv[c] = sig[c] + adjustment;
+ sum_diff += adjustment;
+ } else {+ if ((sig[c] - adjustment) < 0)
+ running_avg_uv[c] = 0;
+ else
+ running_avg_uv[c] = sig[c] - adjustment;
+ sum_diff -= adjustment;
+ }
+ }
+ }
+ /* Update pointers for next iteration. */
+ sig += sig_stride;
+ mc_running_avg_uv += mc_avg_uv_stride;
+ running_avg_uv += avg_uv_stride;
+ }
+
+ sum_diff_thresh= SUM_DIFF_THRESHOLD_UV;
+ if (increase_denoising) sum_diff_thresh = SUM_DIFF_THRESHOLD_HIGH_UV;
+ if (abs(sum_diff) > sum_diff_thresh) {+ // Before returning to copy the block (i.e., apply no denoising), check
+ // if we can still apply some (weaker) temporal filtering to this block,
+ // that would otherwise not be denoised at all. Simplest is to apply
+ // an additional adjustment to running_avg_y to bring it closer to sig.
+ // The adjustment is capped by a maximum delta, and chosen such that
+ // in most cases the resulting sum_diff will be within the
+ // accceptable range given by sum_diff_thresh.
+
+ // The delta is set by the excess of absolute pixel diff over threshold.
+ int delta = ((abs(sum_diff) - sum_diff_thresh) >> 8) + 1;
+ // Only apply the adjustment for max delta up to 3.
+ if (delta < 4) {+ sig -= sig_stride * 8;
+ mc_running_avg_uv -= mc_avg_uv_stride * 8;
+ running_avg_uv -= avg_uv_stride * 8;
+ for (r = 0; r < 8; ++r) {+ for (c = 0; c < 8; ++c) {+ int diff = mc_running_avg_uv[c] - sig[c];
+ int adjustment = abs(diff);
+ if (adjustment > delta)
+ adjustment = delta;
+ if (diff > 0) {+ // Bring denoised signal down.
+ if (running_avg_uv[c] - adjustment < 0)
+ running_avg_uv[c] = 0;
+ else
+ running_avg_uv[c] = running_avg_uv[c] - adjustment;
+ sum_diff -= adjustment;
+ } else if (diff < 0) {+ // Bring denoised signal up.
+ if (running_avg_uv[c] + adjustment > 255)
+ running_avg_uv[c] = 255;
+ else
+ running_avg_uv[c] = running_avg_uv[c] + adjustment;
+ sum_diff += adjustment;
+ }
+ }
+ // TODO(marpan): Check here if abs(sum_diff) has gone below the
+ // threshold sum_diff_thresh, and if so, we can exit the row loop.
+ sig += sig_stride;
+ mc_running_avg_uv += mc_avg_uv_stride;
+ running_avg_uv += avg_uv_stride;
+ }
+ if (abs(sum_diff) > sum_diff_thresh)
+ return COPY_BLOCK;
+ } else {+ return COPY_BLOCK;
+ }
+ }
+
+ vp8_copy_mem8x8(running_avg_uv_start, avg_uv_stride, sig_start,
+ sig_stride);
+ return FILTER_BLOCK;
+}
+
int vp8_denoiser_allocate(VP8_DENOISER *denoiser, int width, int height,
int num_mb_rows, int num_mb_cols)
{@@ -260,6 +402,8 @@
unsigned int motion_magnitude2;
unsigned int sse_thresh;
int sse_diff_thresh = 0;
+ // Denoise the UV channel.
+ int apply_color_denoise = 0;
// Spatial loop filter: only applied selectively based on
// temporal filter state of block relative to top/left neighbors.
int apply_spatial_loop_filter = 1;
@@ -267,6 +411,8 @@
MV_REFERENCE_FRAME zero_frame = x->best_zeromv_reference_frame;
enum vp8_denoiser_decision decision = FILTER_BLOCK;
+ enum vp8_denoiser_decision decision_u = FILTER_BLOCK;
+ enum vp8_denoiser_decision decision_v = FILTER_BLOCK;
if (zero_frame)
{@@ -376,11 +522,37 @@
/* Filter. */
decision = vp8_denoiser_filter(mc_running_avg_y, mc_avg_y_stride,
- running_avg_y, avg_y_stride,
- x->thismb, 16, motion_magnitude2,
- x->increase_denoising);
+ running_avg_y, avg_y_stride,
+ x->thismb, 16, motion_magnitude2,
+ x->increase_denoising);
denoiser->denoise_state[block_index] = motion_magnitude2 > 0 ?
kFilterNonZeroMV : kFilterZeroMV;
+ // Only denoise UV for zero motion, and if y channel was denoised.
+ if (apply_color_denoise &&
+ motion_magnitude2 == 0 &&
+ decision == FILTER_BLOCK) {+ unsigned char *mc_running_avg_u =
+ denoiser->yv12_mc_running_avg.u_buffer + recon_uvoffset;
+ unsigned char *running_avg_u =
+ denoiser->yv12_running_avg[INTRA_FRAME].u_buffer + recon_uvoffset;
+ unsigned char *mc_running_avg_v =
+ denoiser->yv12_mc_running_avg.v_buffer + recon_uvoffset;
+ unsigned char *running_avg_v =
+ denoiser->yv12_running_avg[INTRA_FRAME].v_buffer + recon_uvoffset;
+ int mc_avg_uv_stride = denoiser->yv12_mc_running_avg.uv_stride;
+ int avg_uv_stride = denoiser->yv12_running_avg[INTRA_FRAME].uv_stride;
+ int signal_stride = x->block[16].src_stride;
+ decision_u =
+ vp8_denoiser_filter_uv(mc_running_avg_u, mc_avg_uv_stride,
+ running_avg_u, avg_uv_stride,
+ x->block[16].src + *x->block[16].base_src,
+ signal_stride, motion_magnitude2, 0);
+ decision_v =
+ vp8_denoiser_filter_uv(mc_running_avg_v, mc_avg_uv_stride,
+ running_avg_v, avg_uv_stride,
+ x->block[20].src + *x->block[20].base_src,
+ signal_stride, motion_magnitude2, 0);
+ }
}
if (decision == COPY_BLOCK)
{@@ -393,7 +565,21 @@
denoiser->yv12_running_avg[INTRA_FRAME].y_stride);
denoiser->denoise_state[block_index] = kNoFilter;
}
- // Option to selectively deblock the denoised signal.
+ if (apply_color_denoise) {+ if (decision_u == COPY_BLOCK) {+ vp8_copy_mem8x8(
+ x->block[16].src + *x->block[16].base_src, x->block[16].src_stride,
+ denoiser->yv12_running_avg[INTRA_FRAME].u_buffer + recon_uvoffset,
+ denoiser->yv12_running_avg[INTRA_FRAME].uv_stride);
+ }
+ if (decision_v == COPY_BLOCK) {+ vp8_copy_mem8x8(
+ x->block[20].src + *x->block[20].base_src, x->block[16].src_stride,
+ denoiser->yv12_running_avg[INTRA_FRAME].v_buffer + recon_uvoffset,
+ denoiser->yv12_running_avg[INTRA_FRAME].uv_stride);
+ }
+ }
+ // Option to selectively deblock the denoised signal, for y channel only.
if (apply_spatial_loop_filter) {loop_filter_info lfi;
int apply_filter_col = 0;
--- a/vp8/encoder/denoising.h
+++ b/vp8/encoder/denoising.h
@@ -22,6 +22,11 @@
#define SUM_DIFF_THRESHOLD_HIGH (16 * 16 * 3)
#define MOTION_MAGNITUDE_THRESHOLD (8*3)
+#define SUM_DIFF_THRESHOLD_UV (96) // (8 * 8 * 1.5)
+#define SUM_DIFF_THRESHOLD_HIGH_UV (8 * 8 * 2)
+#define SUM_DIFF_FROM_AVG_THRESH_UV (8 * 8 * 4)
+#define MOTION_MAGNITUDE_THRESHOLD_UV (8*3)
+
enum vp8_denoiser_decision
{COPY_BLOCK,
--- a/vp8/encoder/x86/denoising_sse2.c
+++ b/vp8/encoder/x86/denoising_sse2.c
@@ -17,11 +17,24 @@
#include <emmintrin.h>
#include "vpx_ports/emmintrin_compat.h"
-union sum_union {- __m128i v;
- signed char e[16];
-};
+/* Compute the sum of all pixel differences of this MB. */
+static inline unsigned int abs_sum_diff_16x1(__m128i acc_diff) {+ const __m128i k_1 = _mm_set1_epi16(1);
+ const __m128i acc_diff_lo = _mm_srai_epi16(
+ _mm_unpacklo_epi8(acc_diff, acc_diff), 8);
+ const __m128i acc_diff_hi = _mm_srai_epi16(
+ _mm_unpackhi_epi8(acc_diff, acc_diff), 8);
+ const __m128i acc_diff_16 = _mm_add_epi16(acc_diff_lo, acc_diff_hi);
+ const __m128i hg_fe_dc_ba = _mm_madd_epi16(acc_diff_16, k_1);
+ const __m128i hgfe_dcba = _mm_add_epi32(hg_fe_dc_ba,
+ _mm_srli_si128(hg_fe_dc_ba, 8));
+ const __m128i hgfedcba = _mm_add_epi32(hgfe_dcba,
+ _mm_srli_si128(hgfe_dcba, 4));
+ unsigned int sum_diff = _mm_cvtsi128_si32(hgfedcba);
+ return abs(sum_diff);
+}
+
int vp8_denoiser_filter_sse2(unsigned char *mc_running_avg_y,
int mc_avg_y_stride,
unsigned char *running_avg_y, int avg_y_stride,
@@ -103,16 +116,10 @@
{/* Compute the sum of all pixel differences of this MB. */
- union sum_union s;
- int sum_diff = 0;
- s.v = acc_diff;
- sum_diff = s.e[0] + s.e[1] + s.e[2] + s.e[3] + s.e[4] + s.e[5]
- + s.e[6] + s.e[7] + s.e[8] + s.e[9] + s.e[10] + s.e[11]
- + s.e[12] + s.e[13] + s.e[14] + s.e[15];
-
+ unsigned int abs_sum_diff = abs_sum_diff_16x1(acc_diff);
sum_diff_thresh = SUM_DIFF_THRESHOLD;
if (increase_denoising) sum_diff_thresh = SUM_DIFF_THRESHOLD_HIGH;
- if (abs(sum_diff) > sum_diff_thresh) {+ if (abs_sum_diff > sum_diff_thresh) {// Before returning to copy the block (i.e., apply no denoising),
// checK if we can still apply some (weaker) temporal filtering to
// this block, that would otherwise not be denoised at all. Simplest
@@ -123,7 +130,7 @@
// The delta is set by the excess of absolute pixel diff over the
// threshold.
- int delta = ((abs(sum_diff) - sum_diff_thresh) >> 8) + 1;
+ int delta = ((abs_sum_diff - sum_diff_thresh) >> 8) + 1;
// Only apply the adjustment for max delta up to 3.
if (delta < 4) {const __m128i k_delta = _mm_set1_epi8(delta);
@@ -162,16 +169,9 @@
mc_running_avg_y += mc_avg_y_stride;
running_avg_y += avg_y_stride;
}
- {- // Update the sum of all pixel differences of this MB.
- union sum_union s;
- s.v = acc_diff;
- sum_diff = s.e[0] + s.e[1] + s.e[2] + s.e[3] + s.e[4] + s.e[5]
- + s.e[6] + s.e[7] + s.e[8] + s.e[9] + s.e[10] + s.e[11]
- + s.e[12] + s.e[13] + s.e[14] + s.e[15];
- if (abs(sum_diff) > sum_diff_thresh) {- return COPY_BLOCK;
- }
+ abs_sum_diff = abs_sum_diff_16x1(acc_diff);
+ if (abs_sum_diff > sum_diff_thresh) {+ return COPY_BLOCK;
}
} else {return COPY_BLOCK;
@@ -180,5 +180,200 @@
}
vp8_copy_mem16x16(running_avg_y_start, avg_y_stride, sig_start, sig_stride);
+ return FILTER_BLOCK;
+}
+
+int vp8_denoiser_filter_uv_sse2(unsigned char *mc_running_avg,
+ int mc_avg_stride,
+ unsigned char *running_avg, int avg_stride,
+ unsigned char *sig, int sig_stride,
+ unsigned int motion_magnitude,
+ int increase_denoising) {+ unsigned char *running_avg_start = running_avg;
+ unsigned char *sig_start = sig;
+ int sum_diff_thresh;
+ int r;
+ int shift_inc = (increase_denoising &&
+ motion_magnitude <= MOTION_MAGNITUDE_THRESHOLD_UV) ? 1 : 0;
+ __m128i acc_diff = _mm_setzero_si128();
+ const __m128i k_0 = _mm_setzero_si128();
+ const __m128i k_4 = _mm_set1_epi8(4 + shift_inc);
+ const __m128i k_8 = _mm_set1_epi8(8);
+ const __m128i k_16 = _mm_set1_epi8(16);
+ /* Modify each level's adjustment according to motion_magnitude. */
+ const __m128i l3 = _mm_set1_epi8(
+ (motion_magnitude <= MOTION_MAGNITUDE_THRESHOLD_UV) ?
+ 7 + shift_inc : 6);
+ /* Difference between level 3 and level 2 is 2. */
+ const __m128i l32 = _mm_set1_epi8(2);
+ /* Difference between level 2 and level 1 is 1. */
+ const __m128i l21 = _mm_set1_epi8(1);
+
+ {+ const __m128i k_1 = _mm_set1_epi16(1);
+ __m128i vec_sum_block = _mm_setzero_si128();
+
+ // Avoid denoising color signal if its close to average level.
+ for (r = 0; r < 8; ++r) {+ const __m128i v_sig = _mm_loadl_epi64((__m128i *)(&sig[0]));
+ const __m128i v_sig_unpack = _mm_unpacklo_epi8(v_sig, k_0);
+ vec_sum_block = _mm_add_epi16(vec_sum_block, v_sig_unpack);
+ sig += sig_stride;
+ }
+ sig -= sig_stride * 8;
+ {+ const __m128i hg_fe_dc_ba = _mm_madd_epi16(vec_sum_block, k_1);
+ const __m128i hgfe_dcba = _mm_add_epi32(hg_fe_dc_ba,
+ _mm_srli_si128(hg_fe_dc_ba, 8));
+ const __m128i hgfedcba = _mm_add_epi32(hgfe_dcba,
+ _mm_srli_si128(hgfe_dcba, 4));
+ const int sum_block = _mm_cvtsi128_si32(hgfedcba);
+ if (abs(sum_block - (128 * 8 * 8)) < SUM_DIFF_FROM_AVG_THRESH_UV) {+ return COPY_BLOCK;
+ }
+ }
+ }
+
+ for (r = 0; r < 4; ++r) {+ /* Calculate differences */
+ const __m128i v_sig_low = _mm_castpd_si128(
+ _mm_load_sd((double *)(&sig[0])));
+ const __m128i v_sig = _mm_castpd_si128(
+ _mm_loadh_pd(_mm_castsi128_pd(v_sig_low),
+ (double *)(&sig[sig_stride])));
+ const __m128i v_mc_running_avg_low = _mm_castpd_si128(
+ _mm_load_sd((double *)(&mc_running_avg[0])));
+ const __m128i v_mc_running_avg = _mm_castpd_si128(
+ _mm_loadh_pd(_mm_castsi128_pd(v_mc_running_avg_low),
+ (double *)(&mc_running_avg[mc_avg_stride])));
+ const __m128i pdiff = _mm_subs_epu8(v_mc_running_avg, v_sig);
+ const __m128i ndiff = _mm_subs_epu8(v_sig, v_mc_running_avg);
+ /* Obtain the sign. FF if diff is negative. */
+ const __m128i diff_sign = _mm_cmpeq_epi8(pdiff, k_0);
+ /* Clamp absolute difference to 16 to be used to get mask. Doing this
+ * allows us to use _mm_cmpgt_epi8, which operates on signed byte. */
+ const __m128i clamped_absdiff = _mm_min_epu8(
+ _mm_or_si128(pdiff, ndiff), k_16);
+ /* Get masks for l2 l1 and l0 adjustments */
+ const __m128i mask2 = _mm_cmpgt_epi8(k_16, clamped_absdiff);
+ const __m128i mask1 = _mm_cmpgt_epi8(k_8, clamped_absdiff);
+ const __m128i mask0 = _mm_cmpgt_epi8(k_4, clamped_absdiff);
+ /* Get adjustments for l2, l1, and l0 */
+ __m128i adj2 = _mm_and_si128(mask2, l32);
+ const __m128i adj1 = _mm_and_si128(mask1, l21);
+ const __m128i adj0 = _mm_and_si128(mask0, clamped_absdiff);
+ __m128i adj, padj, nadj;
+ __m128i v_running_avg;
+
+ /* Combine the adjustments and get absolute adjustments. */
+ adj2 = _mm_add_epi8(adj2, adj1);
+ adj = _mm_sub_epi8(l3, adj2);
+ adj = _mm_andnot_si128(mask0, adj);
+ adj = _mm_or_si128(adj, adj0);
+
+ /* Restore the sign and get positive and negative adjustments. */
+ padj = _mm_andnot_si128(diff_sign, adj);
+ nadj = _mm_and_si128(diff_sign, adj);
+
+ /* Calculate filtered value. */
+ v_running_avg = _mm_adds_epu8(v_sig, padj);
+ v_running_avg = _mm_subs_epu8(v_running_avg, nadj);
+
+ _mm_storel_pd((double *)&running_avg[0],
+ _mm_castsi128_pd(v_running_avg));
+ _mm_storeh_pd((double *)&running_avg[avg_stride],
+ _mm_castsi128_pd(v_running_avg));
+
+ /* Adjustments <=7, and each element in acc_diff can fit in signed
+ * char.
+ */
+ acc_diff = _mm_adds_epi8(acc_diff, padj);
+ acc_diff = _mm_subs_epi8(acc_diff, nadj);
+
+ /* Update pointers for next iteration. */
+ sig += sig_stride * 2;
+ mc_running_avg += mc_avg_stride * 2;
+ running_avg += avg_stride * 2;
+ }
+
+ {+ unsigned int abs_sum_diff = abs_sum_diff_16x1(acc_diff);
+ sum_diff_thresh = SUM_DIFF_THRESHOLD_UV;
+ if (increase_denoising) sum_diff_thresh = SUM_DIFF_THRESHOLD_HIGH_UV;
+ if (abs_sum_diff > sum_diff_thresh) {+ // Before returning to copy the block (i.e., apply no denoising),
+ // checK if we can still apply some (weaker) temporal filtering to
+ // this block, that would otherwise not be denoised at all. Simplest
+ // is to apply an additional adjustment to running_avg_y to bring it
+ // closer to sig. The adjustment is capped by a maximum delta, and
+ // chosen such that in most cases the resulting sum_diff will be
+ // within the accceptable range given by sum_diff_thresh.
+
+ // The delta is set by the excess of absolute pixel diff over the
+ // threshold.
+ int delta = ((abs_sum_diff - sum_diff_thresh) >> 8) + 1;
+ // Only apply the adjustment for max delta up to 3.
+ if (delta < 4) {+ const __m128i k_delta = _mm_set1_epi8(delta);
+ sig -= sig_stride * 8;
+ mc_running_avg -= mc_avg_stride * 8;
+ running_avg -= avg_stride * 8;
+ for (r = 0; r < 4; ++r) {+ // Calculate differences.
+ const __m128i v_sig_low = _mm_castpd_si128(
+ _mm_load_sd((double *)(&sig[0])));
+ const __m128i v_sig = _mm_castpd_si128(
+ _mm_loadh_pd(_mm_castsi128_pd(v_sig_low),
+ (double *)(&sig[sig_stride])));
+ const __m128i v_mc_running_avg_low = _mm_castpd_si128(
+ _mm_load_sd((double *)(&mc_running_avg[0])));
+ const __m128i v_mc_running_avg = _mm_castpd_si128(
+ _mm_loadh_pd(_mm_castsi128_pd(v_mc_running_avg_low),
+ (double *)(&mc_running_avg[mc_avg_stride])));
+ const __m128i pdiff = _mm_subs_epu8(v_mc_running_avg, v_sig);
+ const __m128i ndiff = _mm_subs_epu8(v_sig, v_mc_running_avg);
+ // Obtain the sign. FF if diff is negative.
+ const __m128i diff_sign = _mm_cmpeq_epi8(pdiff, k_0);
+ // Clamp absolute difference to delta to get the adjustment.
+ const __m128i adj =
+ _mm_min_epu8(_mm_or_si128(pdiff, ndiff), k_delta);
+ // Restore the sign and get positive and negative adjustments.
+ __m128i padj, nadj;
+ const __m128i v_running_avg_low = _mm_castpd_si128(
+ _mm_load_sd((double *)(&running_avg[0])));
+ __m128i v_running_avg = _mm_castpd_si128(
+ _mm_loadh_pd(_mm_castsi128_pd(v_running_avg_low),
+ (double *)(&running_avg[avg_stride])));
+ padj = _mm_andnot_si128(diff_sign, adj);
+ nadj = _mm_and_si128(diff_sign, adj);
+ // Calculate filtered value.
+ v_running_avg = _mm_subs_epu8(v_running_avg, padj);
+ v_running_avg = _mm_adds_epu8(v_running_avg, nadj);
+
+ _mm_storel_pd((double *)&running_avg[0],
+ _mm_castsi128_pd(v_running_avg));
+ _mm_storeh_pd((double *)&running_avg[avg_stride],
+ _mm_castsi128_pd(v_running_avg));
+
+ // Accumulate the adjustments.
+ acc_diff = _mm_subs_epi8(acc_diff, padj);
+ acc_diff = _mm_adds_epi8(acc_diff, nadj);
+
+ // Update pointers for next iteration.
+ sig += sig_stride * 2;
+ mc_running_avg += mc_avg_stride * 2;
+ running_avg += avg_stride * 2;
+ }
+ abs_sum_diff = abs_sum_diff_16x1(acc_diff);
+ if (abs_sum_diff > sum_diff_thresh) {+ return COPY_BLOCK;
+ }
+ } else {+ return COPY_BLOCK;
+ }
+ }
+ }
+
+ vp8_copy_mem8x8(running_avg_start, avg_stride, sig_start, sig_stride);
return FILTER_BLOCK;
}