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-rw-r--r--media/libaom/src/aom_dsp/psnr.c381
1 files changed, 381 insertions, 0 deletions
diff --git a/media/libaom/src/aom_dsp/psnr.c b/media/libaom/src/aom_dsp/psnr.c
new file mode 100644
index 000000000..50f376a4a
--- /dev/null
+++ b/media/libaom/src/aom_dsp/psnr.c
@@ -0,0 +1,381 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include <assert.h>
+#include <math.h>
+
+#include "config/aom_dsp_rtcd.h"
+
+#include "aom_dsp/psnr.h"
+#include "aom_scale/yv12config.h"
+
+double aom_sse_to_psnr(double samples, double peak, double sse) {
+ if (sse > 0.0) {
+ const double psnr = 10.0 * log10(samples * peak * peak / sse);
+ return psnr > MAX_PSNR ? MAX_PSNR : psnr;
+ } else {
+ return MAX_PSNR;
+ }
+}
+
+/* TODO(yaowu): The block_variance calls the unoptimized versions of variance()
+ * and highbd_8_variance(). It should not.
+ */
+static void encoder_variance(const uint8_t *a, int a_stride, const uint8_t *b,
+ int b_stride, int w, int h, unsigned int *sse,
+ int *sum) {
+ int i, j;
+
+ *sum = 0;
+ *sse = 0;
+
+ for (i = 0; i < h; i++) {
+ for (j = 0; j < w; j++) {
+ const int diff = a[j] - b[j];
+ *sum += diff;
+ *sse += diff * diff;
+ }
+
+ a += a_stride;
+ b += b_stride;
+ }
+}
+
+static void encoder_highbd_variance64(const uint8_t *a8, int a_stride,
+ const uint8_t *b8, int b_stride, int w,
+ int h, uint64_t *sse, int64_t *sum) {
+ const uint16_t *a = CONVERT_TO_SHORTPTR(a8);
+ const uint16_t *b = CONVERT_TO_SHORTPTR(b8);
+ int64_t tsum = 0;
+ uint64_t tsse = 0;
+ for (int i = 0; i < h; ++i) {
+ int32_t lsum = 0;
+ for (int j = 0; j < w; ++j) {
+ const int diff = a[j] - b[j];
+ lsum += diff;
+ tsse += (uint32_t)(diff * diff);
+ }
+ tsum += lsum;
+ a += a_stride;
+ b += b_stride;
+ }
+ *sum = tsum;
+ *sse = tsse;
+}
+
+static void encoder_highbd_8_variance(const uint8_t *a8, int a_stride,
+ const uint8_t *b8, int b_stride, int w,
+ int h, unsigned int *sse, int *sum) {
+ uint64_t sse_long = 0;
+ int64_t sum_long = 0;
+ encoder_highbd_variance64(a8, a_stride, b8, b_stride, w, h, &sse_long,
+ &sum_long);
+ *sse = (unsigned int)sse_long;
+ *sum = (int)sum_long;
+}
+
+static int64_t get_sse(const uint8_t *a, int a_stride, const uint8_t *b,
+ int b_stride, int width, int height) {
+ const int dw = width % 16;
+ const int dh = height % 16;
+ int64_t total_sse = 0;
+ unsigned int sse = 0;
+ int sum = 0;
+ int x, y;
+
+ if (dw > 0) {
+ encoder_variance(&a[width - dw], a_stride, &b[width - dw], b_stride, dw,
+ height, &sse, &sum);
+ total_sse += sse;
+ }
+
+ if (dh > 0) {
+ encoder_variance(&a[(height - dh) * a_stride], a_stride,
+ &b[(height - dh) * b_stride], b_stride, width - dw, dh,
+ &sse, &sum);
+ total_sse += sse;
+ }
+
+ for (y = 0; y < height / 16; ++y) {
+ const uint8_t *pa = a;
+ const uint8_t *pb = b;
+ for (x = 0; x < width / 16; ++x) {
+ aom_mse16x16(pa, a_stride, pb, b_stride, &sse);
+ total_sse += sse;
+
+ pa += 16;
+ pb += 16;
+ }
+
+ a += 16 * a_stride;
+ b += 16 * b_stride;
+ }
+
+ return total_sse;
+}
+
+static int64_t highbd_get_sse_shift(const uint8_t *a8, int a_stride,
+ const uint8_t *b8, int b_stride, int width,
+ int height, unsigned int input_shift) {
+ const uint16_t *a = CONVERT_TO_SHORTPTR(a8);
+ const uint16_t *b = CONVERT_TO_SHORTPTR(b8);
+ int64_t total_sse = 0;
+ int x, y;
+ for (y = 0; y < height; ++y) {
+ for (x = 0; x < width; ++x) {
+ int64_t diff;
+ diff = (a[x] >> input_shift) - (b[x] >> input_shift);
+ total_sse += diff * diff;
+ }
+ a += a_stride;
+ b += b_stride;
+ }
+ return total_sse;
+}
+
+static int64_t highbd_get_sse(const uint8_t *a, int a_stride, const uint8_t *b,
+ int b_stride, int width, int height) {
+ int64_t total_sse = 0;
+ int x, y;
+ const int dw = width % 16;
+ const int dh = height % 16;
+ unsigned int sse = 0;
+ int sum = 0;
+ if (dw > 0) {
+ encoder_highbd_8_variance(&a[width - dw], a_stride, &b[width - dw],
+ b_stride, dw, height, &sse, &sum);
+ total_sse += sse;
+ }
+ if (dh > 0) {
+ encoder_highbd_8_variance(&a[(height - dh) * a_stride], a_stride,
+ &b[(height - dh) * b_stride], b_stride,
+ width - dw, dh, &sse, &sum);
+ total_sse += sse;
+ }
+ for (y = 0; y < height / 16; ++y) {
+ const uint8_t *pa = a;
+ const uint8_t *pb = b;
+ for (x = 0; x < width / 16; ++x) {
+ aom_highbd_8_mse16x16(pa, a_stride, pb, b_stride, &sse);
+ total_sse += sse;
+ pa += 16;
+ pb += 16;
+ }
+ a += 16 * a_stride;
+ b += 16 * b_stride;
+ }
+ return total_sse;
+}
+
+int64_t aom_get_y_sse_part(const YV12_BUFFER_CONFIG *a,
+ const YV12_BUFFER_CONFIG *b, int hstart, int width,
+ int vstart, int height) {
+ return get_sse(a->y_buffer + vstart * a->y_stride + hstart, a->y_stride,
+ b->y_buffer + vstart * b->y_stride + hstart, b->y_stride,
+ width, height);
+}
+
+int64_t aom_get_y_sse(const YV12_BUFFER_CONFIG *a,
+ const YV12_BUFFER_CONFIG *b) {
+ assert(a->y_crop_width == b->y_crop_width);
+ assert(a->y_crop_height == b->y_crop_height);
+
+ return get_sse(a->y_buffer, a->y_stride, b->y_buffer, b->y_stride,
+ a->y_crop_width, a->y_crop_height);
+}
+
+int64_t aom_get_u_sse_part(const YV12_BUFFER_CONFIG *a,
+ const YV12_BUFFER_CONFIG *b, int hstart, int width,
+ int vstart, int height) {
+ return get_sse(a->u_buffer + vstart * a->uv_stride + hstart, a->uv_stride,
+ b->u_buffer + vstart * b->uv_stride + hstart, b->uv_stride,
+ width, height);
+}
+
+int64_t aom_get_u_sse(const YV12_BUFFER_CONFIG *a,
+ const YV12_BUFFER_CONFIG *b) {
+ assert(a->uv_crop_width == b->uv_crop_width);
+ assert(a->uv_crop_height == b->uv_crop_height);
+
+ return get_sse(a->u_buffer, a->uv_stride, b->u_buffer, b->uv_stride,
+ a->uv_crop_width, a->uv_crop_height);
+}
+
+int64_t aom_get_v_sse_part(const YV12_BUFFER_CONFIG *a,
+ const YV12_BUFFER_CONFIG *b, int hstart, int width,
+ int vstart, int height) {
+ return get_sse(a->v_buffer + vstart * a->uv_stride + hstart, a->uv_stride,
+ b->v_buffer + vstart * b->uv_stride + hstart, b->uv_stride,
+ width, height);
+}
+
+int64_t aom_get_v_sse(const YV12_BUFFER_CONFIG *a,
+ const YV12_BUFFER_CONFIG *b) {
+ assert(a->uv_crop_width == b->uv_crop_width);
+ assert(a->uv_crop_height == b->uv_crop_height);
+
+ return get_sse(a->v_buffer, a->uv_stride, b->v_buffer, b->uv_stride,
+ a->uv_crop_width, a->uv_crop_height);
+}
+
+int64_t aom_highbd_get_y_sse_part(const YV12_BUFFER_CONFIG *a,
+ const YV12_BUFFER_CONFIG *b, int hstart,
+ int width, int vstart, int height) {
+ return highbd_get_sse(
+ a->y_buffer + vstart * a->y_stride + hstart, a->y_stride,
+ b->y_buffer + vstart * b->y_stride + hstart, b->y_stride, width, height);
+}
+
+int64_t aom_highbd_get_y_sse(const YV12_BUFFER_CONFIG *a,
+ const YV12_BUFFER_CONFIG *b) {
+ assert(a->y_crop_width == b->y_crop_width);
+ assert(a->y_crop_height == b->y_crop_height);
+ assert((a->flags & YV12_FLAG_HIGHBITDEPTH) != 0);
+ assert((b->flags & YV12_FLAG_HIGHBITDEPTH) != 0);
+
+ return highbd_get_sse(a->y_buffer, a->y_stride, b->y_buffer, b->y_stride,
+ a->y_crop_width, a->y_crop_height);
+}
+
+int64_t aom_highbd_get_u_sse_part(const YV12_BUFFER_CONFIG *a,
+ const YV12_BUFFER_CONFIG *b, int hstart,
+ int width, int vstart, int height) {
+ return highbd_get_sse(a->u_buffer + vstart * a->uv_stride + hstart,
+ a->uv_stride,
+ b->u_buffer + vstart * b->uv_stride + hstart,
+ b->uv_stride, width, height);
+}
+
+int64_t aom_highbd_get_u_sse(const YV12_BUFFER_CONFIG *a,
+ const YV12_BUFFER_CONFIG *b) {
+ assert(a->uv_crop_width == b->uv_crop_width);
+ assert(a->uv_crop_height == b->uv_crop_height);
+ assert((a->flags & YV12_FLAG_HIGHBITDEPTH) != 0);
+ assert((b->flags & YV12_FLAG_HIGHBITDEPTH) != 0);
+
+ return highbd_get_sse(a->u_buffer, a->uv_stride, b->u_buffer, b->uv_stride,
+ a->uv_crop_width, a->uv_crop_height);
+}
+
+int64_t aom_highbd_get_v_sse_part(const YV12_BUFFER_CONFIG *a,
+ const YV12_BUFFER_CONFIG *b, int hstart,
+ int width, int vstart, int height) {
+ return highbd_get_sse(a->v_buffer + vstart * a->uv_stride + hstart,
+ a->uv_stride,
+ b->v_buffer + vstart * b->uv_stride + hstart,
+ b->uv_stride, width, height);
+}
+
+int64_t aom_highbd_get_v_sse(const YV12_BUFFER_CONFIG *a,
+ const YV12_BUFFER_CONFIG *b) {
+ assert(a->uv_crop_width == b->uv_crop_width);
+ assert(a->uv_crop_height == b->uv_crop_height);
+ assert((a->flags & YV12_FLAG_HIGHBITDEPTH) != 0);
+ assert((b->flags & YV12_FLAG_HIGHBITDEPTH) != 0);
+
+ return highbd_get_sse(a->v_buffer, a->uv_stride, b->v_buffer, b->uv_stride,
+ a->uv_crop_width, a->uv_crop_height);
+}
+
+int64_t aom_get_sse_plane(const YV12_BUFFER_CONFIG *a,
+ const YV12_BUFFER_CONFIG *b, int plane, int highbd) {
+ if (highbd) {
+ switch (plane) {
+ case 0: return aom_highbd_get_y_sse(a, b);
+ case 1: return aom_highbd_get_u_sse(a, b);
+ case 2: return aom_highbd_get_v_sse(a, b);
+ default: assert(plane >= 0 && plane <= 2); return 0;
+ }
+ }
+ switch (plane) {
+ case 0: return aom_get_y_sse(a, b);
+ case 1: return aom_get_u_sse(a, b);
+ case 2: return aom_get_v_sse(a, b);
+ default: assert(plane >= 0 && plane <= 2); return 0;
+ }
+}
+
+void aom_calc_highbd_psnr(const YV12_BUFFER_CONFIG *a,
+ const YV12_BUFFER_CONFIG *b, PSNR_STATS *psnr,
+ uint32_t bit_depth, uint32_t in_bit_depth) {
+ const int widths[3] = { a->y_crop_width, a->uv_crop_width, a->uv_crop_width };
+ const int heights[3] = { a->y_crop_height, a->uv_crop_height,
+ a->uv_crop_height };
+ const int a_strides[3] = { a->y_stride, a->uv_stride, a->uv_stride };
+ const int b_strides[3] = { b->y_stride, b->uv_stride, b->uv_stride };
+ int i;
+ uint64_t total_sse = 0;
+ uint32_t total_samples = 0;
+ const double peak = (double)((1 << in_bit_depth) - 1);
+ const unsigned int input_shift = bit_depth - in_bit_depth;
+
+ for (i = 0; i < 3; ++i) {
+ const int w = widths[i];
+ const int h = heights[i];
+ const uint32_t samples = w * h;
+ uint64_t sse;
+ if (a->flags & YV12_FLAG_HIGHBITDEPTH) {
+ if (input_shift) {
+ sse = highbd_get_sse_shift(a->buffers[i], a_strides[i], b->buffers[i],
+ b_strides[i], w, h, input_shift);
+ } else {
+ sse = highbd_get_sse(a->buffers[i], a_strides[i], b->buffers[i],
+ b_strides[i], w, h);
+ }
+ } else {
+ sse = get_sse(a->buffers[i], a_strides[i], b->buffers[i], b_strides[i], w,
+ h);
+ }
+ psnr->sse[1 + i] = sse;
+ psnr->samples[1 + i] = samples;
+ psnr->psnr[1 + i] = aom_sse_to_psnr(samples, peak, (double)sse);
+
+ total_sse += sse;
+ total_samples += samples;
+ }
+
+ psnr->sse[0] = total_sse;
+ psnr->samples[0] = total_samples;
+ psnr->psnr[0] =
+ aom_sse_to_psnr((double)total_samples, peak, (double)total_sse);
+}
+
+void aom_calc_psnr(const YV12_BUFFER_CONFIG *a, const YV12_BUFFER_CONFIG *b,
+ PSNR_STATS *psnr) {
+ static const double peak = 255.0;
+ const int widths[3] = { a->y_crop_width, a->uv_crop_width, a->uv_crop_width };
+ const int heights[3] = { a->y_crop_height, a->uv_crop_height,
+ a->uv_crop_height };
+ const int a_strides[3] = { a->y_stride, a->uv_stride, a->uv_stride };
+ const int b_strides[3] = { b->y_stride, b->uv_stride, b->uv_stride };
+ int i;
+ uint64_t total_sse = 0;
+ uint32_t total_samples = 0;
+
+ for (i = 0; i < 3; ++i) {
+ const int w = widths[i];
+ const int h = heights[i];
+ const uint32_t samples = w * h;
+ const uint64_t sse =
+ get_sse(a->buffers[i], a_strides[i], b->buffers[i], b_strides[i], w, h);
+ psnr->sse[1 + i] = sse;
+ psnr->samples[1 + i] = samples;
+ psnr->psnr[1 + i] = aom_sse_to_psnr(samples, peak, (double)sse);
+
+ total_sse += sse;
+ total_samples += samples;
+ }
+
+ psnr->sse[0] = total_sse;
+ psnr->samples[0] = total_samples;
+ psnr->psnr[0] =
+ aom_sse_to_psnr((double)total_samples, peak, (double)total_sse);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 11:36:32 +0000