mirror of
https://github.com/classilla/tenfourfox.git
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439 lines
12 KiB
C++
439 lines
12 KiB
C++
/*
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* Copyright 2011 The LibYuv Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include "../unit_test/unit_test.h"
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#include "libyuv/basic_types.h"
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#include "libyuv/compare.h"
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#include "libyuv/cpu_id.h"
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#include "libyuv/row.h"
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namespace libyuv {
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// hash seed of 5381 recommended.
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static uint32 ReferenceHashDjb2(const uint8* src, uint64 count, uint32 seed) {
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uint32 hash = seed;
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if (count > 0) {
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do {
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hash = hash * 33 + *src++;
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} while (--count);
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}
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return hash;
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}
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TEST_F(libyuvTest, Djb2_Test) {
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const int kMaxTest = benchmark_width_ * benchmark_height_;
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align_buffer_64(src_a, kMaxTest);
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align_buffer_64(src_b, kMaxTest);
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const char* fox = "The quick brown fox jumps over the lazy dog"
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" and feels as if he were in the seventh heaven of typography"
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" together with Hermann Zapf";
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uint32 foxhash = HashDjb2(reinterpret_cast<const uint8*>(fox), 131, 5381);
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const uint32 kExpectedFoxHash = 2611006483u;
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EXPECT_EQ(kExpectedFoxHash, foxhash);
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for (int i = 0; i < kMaxTest; ++i) {
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src_a[i] = (random() & 0xff);
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src_b[i] = (random() & 0xff);
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}
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// Compare different buffers. Expect hash is different.
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uint32 h1 = HashDjb2(src_a, kMaxTest, 5381);
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uint32 h2 = HashDjb2(src_b, kMaxTest, 5381);
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EXPECT_NE(h1, h2);
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// Make last half same. Expect hash is different.
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memcpy(src_a + kMaxTest / 2, src_b + kMaxTest / 2, kMaxTest / 2);
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h1 = HashDjb2(src_a, kMaxTest, 5381);
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h2 = HashDjb2(src_b, kMaxTest, 5381);
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EXPECT_NE(h1, h2);
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// Make first half same. Expect hash is different.
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memcpy(src_a + kMaxTest / 2, src_a, kMaxTest / 2);
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memcpy(src_b + kMaxTest / 2, src_b, kMaxTest / 2);
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memcpy(src_a, src_b, kMaxTest / 2);
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h1 = HashDjb2(src_a, kMaxTest, 5381);
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h2 = HashDjb2(src_b, kMaxTest, 5381);
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EXPECT_NE(h1, h2);
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// Make same. Expect hash is same.
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memcpy(src_a, src_b, kMaxTest);
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h1 = HashDjb2(src_a, kMaxTest, 5381);
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h2 = HashDjb2(src_b, kMaxTest, 5381);
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EXPECT_EQ(h1, h2);
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// Mask seed different. Expect hash is different.
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memcpy(src_a, src_b, kMaxTest);
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h1 = HashDjb2(src_a, kMaxTest, 5381);
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h2 = HashDjb2(src_b, kMaxTest, 1234);
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EXPECT_NE(h1, h2);
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// Make one byte different in middle. Expect hash is different.
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memcpy(src_a, src_b, kMaxTest);
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++src_b[kMaxTest / 2];
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h1 = HashDjb2(src_a, kMaxTest, 5381);
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h2 = HashDjb2(src_b, kMaxTest, 5381);
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EXPECT_NE(h1, h2);
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// Make first byte different. Expect hash is different.
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memcpy(src_a, src_b, kMaxTest);
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++src_b[0];
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h1 = HashDjb2(src_a, kMaxTest, 5381);
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h2 = HashDjb2(src_b, kMaxTest, 5381);
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EXPECT_NE(h1, h2);
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// Make last byte different. Expect hash is different.
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memcpy(src_a, src_b, kMaxTest);
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++src_b[kMaxTest - 1];
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h1 = HashDjb2(src_a, kMaxTest, 5381);
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h2 = HashDjb2(src_b, kMaxTest, 5381);
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EXPECT_NE(h1, h2);
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// Make a zeros. Test different lengths. Expect hash is different.
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memset(src_a, 0, kMaxTest);
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h1 = HashDjb2(src_a, kMaxTest, 5381);
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h2 = HashDjb2(src_a, kMaxTest / 2, 5381);
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EXPECT_NE(h1, h2);
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// Make a zeros and seed of zero. Test different lengths. Expect hash is same.
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memset(src_a, 0, kMaxTest);
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h1 = HashDjb2(src_a, kMaxTest, 0);
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h2 = HashDjb2(src_a, kMaxTest / 2, 0);
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EXPECT_EQ(h1, h2);
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free_aligned_buffer_64(src_a);
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free_aligned_buffer_64(src_b);
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}
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TEST_F(libyuvTest, BenchmarkDjb2_Opt) {
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const int kMaxTest = benchmark_width_ * benchmark_height_;
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align_buffer_64(src_a, kMaxTest);
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for (int i = 0; i < kMaxTest; ++i) {
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src_a[i] = i;
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}
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uint32 h2 = ReferenceHashDjb2(src_a, kMaxTest, 5381);
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uint32 h1;
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for (int i = 0; i < benchmark_iterations_; ++i) {
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h1 = HashDjb2(src_a, kMaxTest, 5381);
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}
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EXPECT_EQ(h1, h2);
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free_aligned_buffer_64(src_a);
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}
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TEST_F(libyuvTest, BenchmarkDjb2_Unaligned) {
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const int kMaxTest = benchmark_width_ * benchmark_height_;
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align_buffer_64(src_a, kMaxTest + 1);
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for (int i = 0; i < kMaxTest; ++i) {
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src_a[i + 1] = i;
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}
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uint32 h2 = ReferenceHashDjb2(src_a + 1, kMaxTest, 5381);
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uint32 h1;
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for (int i = 0; i < benchmark_iterations_; ++i) {
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h1 = HashDjb2(src_a + 1, kMaxTest, 5381);
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}
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EXPECT_EQ(h1, h2);
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free_aligned_buffer_64(src_a);
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}
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TEST_F(libyuvTest, BenchmarkSumSquareError_Opt) {
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const int kMaxWidth = 4096 * 3;
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align_buffer_64(src_a, kMaxWidth);
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align_buffer_64(src_b, kMaxWidth);
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memset(src_a, 0, kMaxWidth);
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memset(src_b, 0, kMaxWidth);
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memcpy(src_a, "test0123test4567", 16);
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memcpy(src_b, "tick0123tock4567", 16);
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uint64 h1 = ComputeSumSquareError(src_a, src_b, 16);
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EXPECT_EQ(790u, h1);
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for (int i = 0; i < kMaxWidth; ++i) {
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src_a[i] = i;
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src_b[i] = i;
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}
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memset(src_a, 0, kMaxWidth);
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memset(src_b, 0, kMaxWidth);
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int count = benchmark_iterations_ *
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((benchmark_width_ * benchmark_height_ + kMaxWidth - 1) / kMaxWidth);
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for (int i = 0; i < count; ++i) {
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h1 = ComputeSumSquareError(src_a, src_b, kMaxWidth);
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}
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EXPECT_EQ(0, h1);
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free_aligned_buffer_64(src_a);
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free_aligned_buffer_64(src_b);
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}
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TEST_F(libyuvTest, SumSquareError) {
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const int kMaxWidth = 4096 * 3;
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align_buffer_64(src_a, kMaxWidth);
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align_buffer_64(src_b, kMaxWidth);
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memset(src_a, 0, kMaxWidth);
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memset(src_b, 0, kMaxWidth);
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uint64 err;
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err = ComputeSumSquareError(src_a, src_b, kMaxWidth);
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EXPECT_EQ(0, err);
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memset(src_a, 1, kMaxWidth);
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err = ComputeSumSquareError(src_a, src_b, kMaxWidth);
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EXPECT_EQ(err, kMaxWidth);
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memset(src_a, 190, kMaxWidth);
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memset(src_b, 193, kMaxWidth);
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err = ComputeSumSquareError(src_a, src_b, kMaxWidth);
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EXPECT_EQ(kMaxWidth * 3 * 3, err);
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srandom(time(NULL));
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for (int i = 0; i < kMaxWidth; ++i) {
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src_a[i] = (random() & 0xff);
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src_b[i] = (random() & 0xff);
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}
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MaskCpuFlags(0);
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uint64 c_err = ComputeSumSquareError(src_a, src_b, kMaxWidth);
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MaskCpuFlags(-1);
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uint64 opt_err = ComputeSumSquareError(src_a, src_b, kMaxWidth);
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EXPECT_EQ(c_err, opt_err);
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free_aligned_buffer_64(src_a);
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free_aligned_buffer_64(src_b);
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}
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TEST_F(libyuvTest, BenchmarkPsnr_Opt) {
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align_buffer_64(src_a, benchmark_width_ * benchmark_height_);
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align_buffer_64(src_b, benchmark_width_ * benchmark_height_);
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for (int i = 0; i < benchmark_width_ * benchmark_height_; ++i) {
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src_a[i] = i;
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src_b[i] = i;
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}
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MaskCpuFlags(-1);
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double opt_time = get_time();
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for (int i = 0; i < benchmark_iterations_; ++i)
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CalcFramePsnr(src_a, benchmark_width_,
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src_b, benchmark_width_,
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benchmark_width_, benchmark_height_);
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opt_time = (get_time() - opt_time) / benchmark_iterations_;
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printf("BenchmarkPsnr_Opt - %8.2f us opt\n", opt_time * 1e6);
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EXPECT_EQ(0, 0);
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free_aligned_buffer_64(src_a);
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free_aligned_buffer_64(src_b);
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}
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TEST_F(libyuvTest, Psnr) {
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const int kSrcWidth = benchmark_width_;
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const int kSrcHeight = benchmark_height_;
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const int b = 128;
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const int kSrcPlaneSize = (kSrcWidth + b * 2) * (kSrcHeight + b * 2);
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const int kSrcStride = 2 * b + kSrcWidth;
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align_buffer_64(src_a, kSrcPlaneSize);
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align_buffer_64(src_b, kSrcPlaneSize);
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memset(src_a, 0, kSrcPlaneSize);
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memset(src_b, 0, kSrcPlaneSize);
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double err;
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err = CalcFramePsnr(src_a + kSrcStride * b + b, kSrcStride,
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src_b + kSrcStride * b + b, kSrcStride,
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kSrcWidth, kSrcHeight);
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EXPECT_EQ(err, kMaxPsnr);
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memset(src_a, 255, kSrcPlaneSize);
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err = CalcFramePsnr(src_a + kSrcStride * b + b, kSrcStride,
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src_b + kSrcStride * b + b, kSrcStride,
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kSrcWidth, kSrcHeight);
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EXPECT_EQ(err, 0.0);
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memset(src_a, 1, kSrcPlaneSize);
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err = CalcFramePsnr(src_a + kSrcStride * b + b, kSrcStride,
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src_b + kSrcStride * b + b, kSrcStride,
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kSrcWidth, kSrcHeight);
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EXPECT_GT(err, 48.0);
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EXPECT_LT(err, 49.0);
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for (int i = 0; i < kSrcPlaneSize; ++i) {
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src_a[i] = i;
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}
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err = CalcFramePsnr(src_a + kSrcStride * b + b, kSrcStride,
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src_b + kSrcStride * b + b, kSrcStride,
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kSrcWidth, kSrcHeight);
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EXPECT_GT(err, 2.0);
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if (kSrcWidth * kSrcHeight >= 256) {
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EXPECT_LT(err, 6.0);
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}
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srandom(time(NULL));
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memset(src_a, 0, kSrcPlaneSize);
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memset(src_b, 0, kSrcPlaneSize);
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for (int i = b; i < (kSrcHeight + b); ++i) {
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for (int j = b; j < (kSrcWidth + b); ++j) {
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src_a[(i * kSrcStride) + j] = (random() & 0xff);
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src_b[(i * kSrcStride) + j] = (random() & 0xff);
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}
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}
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MaskCpuFlags(0);
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double c_err, opt_err;
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c_err = CalcFramePsnr(src_a + kSrcStride * b + b, kSrcStride,
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src_b + kSrcStride * b + b, kSrcStride,
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kSrcWidth, kSrcHeight);
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MaskCpuFlags(-1);
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opt_err = CalcFramePsnr(src_a + kSrcStride * b + b, kSrcStride,
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src_b + kSrcStride * b + b, kSrcStride,
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kSrcWidth, kSrcHeight);
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EXPECT_EQ(opt_err, c_err);
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free_aligned_buffer_64(src_a);
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free_aligned_buffer_64(src_b);
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}
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TEST_F(libyuvTest, DISABLED_BenchmarkSsim_Opt) {
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align_buffer_64(src_a, benchmark_width_ * benchmark_height_);
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align_buffer_64(src_b, benchmark_width_ * benchmark_height_);
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for (int i = 0; i < benchmark_width_ * benchmark_height_; ++i) {
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src_a[i] = i;
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src_b[i] = i;
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}
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MaskCpuFlags(-1);
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double opt_time = get_time();
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for (int i = 0; i < benchmark_iterations_; ++i)
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CalcFrameSsim(src_a, benchmark_width_,
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src_b, benchmark_width_,
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benchmark_width_, benchmark_height_);
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opt_time = (get_time() - opt_time) / benchmark_iterations_;
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printf("BenchmarkSsim_Opt - %8.2f us opt\n", opt_time * 1e6);
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EXPECT_EQ(0, 0); // Pass if we get this far.
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free_aligned_buffer_64(src_a);
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free_aligned_buffer_64(src_b);
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}
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TEST_F(libyuvTest, Ssim) {
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const int kSrcWidth = benchmark_width_;
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const int kSrcHeight = benchmark_height_;
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const int b = 128;
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const int kSrcPlaneSize = (kSrcWidth + b * 2) * (kSrcHeight + b * 2);
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const int kSrcStride = 2 * b + kSrcWidth;
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align_buffer_64(src_a, kSrcPlaneSize);
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align_buffer_64(src_b, kSrcPlaneSize);
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memset(src_a, 0, kSrcPlaneSize);
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memset(src_b, 0, kSrcPlaneSize);
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if (kSrcWidth <=8 || kSrcHeight <= 8) {
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printf("warning - Ssim size too small. Testing function executes.\n");
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}
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double err;
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err = CalcFrameSsim(src_a + kSrcStride * b + b, kSrcStride,
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src_b + kSrcStride * b + b, kSrcStride,
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kSrcWidth, kSrcHeight);
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if (kSrcWidth > 8 && kSrcHeight > 8) {
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EXPECT_EQ(err, 1.0);
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}
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memset(src_a, 255, kSrcPlaneSize);
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err = CalcFrameSsim(src_a + kSrcStride * b + b, kSrcStride,
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src_b + kSrcStride * b + b, kSrcStride,
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kSrcWidth, kSrcHeight);
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if (kSrcWidth > 8 && kSrcHeight > 8) {
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EXPECT_LT(err, 0.0001);
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}
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memset(src_a, 1, kSrcPlaneSize);
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err = CalcFrameSsim(src_a + kSrcStride * b + b, kSrcStride,
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src_b + kSrcStride * b + b, kSrcStride,
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kSrcWidth, kSrcHeight);
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if (kSrcWidth > 8 && kSrcHeight > 8) {
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EXPECT_GT(err, 0.0001);
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EXPECT_LT(err, 0.9);
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}
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for (int i = 0; i < kSrcPlaneSize; ++i) {
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src_a[i] = i;
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}
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err = CalcFrameSsim(src_a + kSrcStride * b + b, kSrcStride,
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src_b + kSrcStride * b + b, kSrcStride,
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kSrcWidth, kSrcHeight);
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if (kSrcWidth > 8 && kSrcHeight > 8) {
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EXPECT_GT(err, 0.0);
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EXPECT_LT(err, 0.01);
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}
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srandom(time(NULL));
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for (int i = b; i < (kSrcHeight + b); ++i) {
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for (int j = b; j < (kSrcWidth + b); ++j) {
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src_a[(i * kSrcStride) + j] = (random() & 0xff);
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src_b[(i * kSrcStride) + j] = (random() & 0xff);
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}
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}
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MaskCpuFlags(0);
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double c_err, opt_err;
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c_err = CalcFrameSsim(src_a + kSrcStride * b + b, kSrcStride,
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src_b + kSrcStride * b + b, kSrcStride,
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kSrcWidth, kSrcHeight);
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MaskCpuFlags(-1);
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opt_err = CalcFrameSsim(src_a + kSrcStride * b + b, kSrcStride,
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src_b + kSrcStride * b + b, kSrcStride,
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kSrcWidth, kSrcHeight);
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if (kSrcWidth > 8 && kSrcHeight > 8) {
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EXPECT_EQ(opt_err, c_err);
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}
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free_aligned_buffer_64(src_a);
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free_aligned_buffer_64(src_b);
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}
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} // namespace libyuv
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