346 lines
12 KiB
C++
346 lines
12 KiB
C++
|
/*
|
||
|
|
* Copyright (c) 2014 The WebRTC 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 <memory>
|
||
|
|
|
||
|
|
#include "webrtc/common_audio/blocker.h"
|
||
|
|
|
||
|
|
#include "testing/gtest/include/gtest/gtest.h"
|
||
|
|
#include "webrtc/base/arraysize.h"
|
||
|
|
|
||
|
|
namespace {
|
||
|
|
|
||
|
|
// Callback Function to add 3 to every sample in the signal.
|
||
|
|
class PlusThreeBlockerCallback : public webrtc::BlockerCallback {
|
||
|
|
public:
|
||
|
|
void ProcessBlock(const float* const* input,
|
||
|
|
size_t num_frames,
|
||
|
|
size_t num_input_channels,
|
||
|
|
size_t num_output_channels,
|
||
|
|
float* const* output) override {
|
||
|
|
for (size_t i = 0; i < num_output_channels; ++i) {
|
||
|
|
for (size_t j = 0; j < num_frames; ++j) {
|
||
|
|
output[i][j] = input[i][j] + 3;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
// No-op Callback Function.
|
||
|
|
class CopyBlockerCallback : public webrtc::BlockerCallback {
|
||
|
|
public:
|
||
|
|
void ProcessBlock(const float* const* input,
|
||
|
|
size_t num_frames,
|
||
|
|
size_t num_input_channels,
|
||
|
|
size_t num_output_channels,
|
||
|
|
float* const* output) override {
|
||
|
|
for (size_t i = 0; i < num_output_channels; ++i) {
|
||
|
|
for (size_t j = 0; j < num_frames; ++j) {
|
||
|
|
output[i][j] = input[i][j];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace
|
||
|
|
|
||
|
|
namespace webrtc {
|
||
|
|
|
||
|
|
// Tests blocking with a window that multiplies the signal by 2, a callback
|
||
|
|
// that adds 3 to each sample in the signal, and different combinations of chunk
|
||
|
|
// size, block size, and shift amount.
|
||
|
|
class BlockerTest : public ::testing::Test {
|
||
|
|
protected:
|
||
|
|
void RunTest(Blocker* blocker,
|
||
|
|
size_t chunk_size,
|
||
|
|
size_t num_frames,
|
||
|
|
const float* const* input,
|
||
|
|
float* const* input_chunk,
|
||
|
|
float* const* output,
|
||
|
|
float* const* output_chunk,
|
||
|
|
size_t num_input_channels,
|
||
|
|
size_t num_output_channels) {
|
||
|
|
size_t start = 0;
|
||
|
|
size_t end = chunk_size - 1;
|
||
|
|
while (end < num_frames) {
|
||
|
|
CopyTo(input_chunk, 0, start, num_input_channels, chunk_size, input);
|
||
|
|
blocker->ProcessChunk(input_chunk,
|
||
|
|
chunk_size,
|
||
|
|
num_input_channels,
|
||
|
|
num_output_channels,
|
||
|
|
output_chunk);
|
||
|
|
CopyTo(output, start, 0, num_output_channels, chunk_size, output_chunk);
|
||
|
|
|
||
|
|
start += chunk_size;
|
||
|
|
end += chunk_size;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void ValidateSignalEquality(const float* const* expected,
|
||
|
|
const float* const* actual,
|
||
|
|
size_t num_channels,
|
||
|
|
size_t num_frames) {
|
||
|
|
for (size_t i = 0; i < num_channels; ++i) {
|
||
|
|
for (size_t j = 0; j < num_frames; ++j) {
|
||
|
|
EXPECT_FLOAT_EQ(expected[i][j], actual[i][j]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void ValidateInitialDelay(const float* const* output,
|
||
|
|
size_t num_channels,
|
||
|
|
size_t num_frames,
|
||
|
|
size_t initial_delay) {
|
||
|
|
for (size_t i = 0; i < num_channels; ++i) {
|
||
|
|
for (size_t j = 0; j < num_frames; ++j) {
|
||
|
|
if (j < initial_delay) {
|
||
|
|
EXPECT_FLOAT_EQ(output[i][j], 0.f);
|
||
|
|
} else {
|
||
|
|
EXPECT_GT(output[i][j], 0.f);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void CopyTo(float* const* dst,
|
||
|
|
size_t start_index_dst,
|
||
|
|
size_t start_index_src,
|
||
|
|
size_t num_channels,
|
||
|
|
size_t num_frames,
|
||
|
|
const float* const* src) {
|
||
|
|
for (size_t i = 0; i < num_channels; ++i) {
|
||
|
|
memcpy(&dst[i][start_index_dst],
|
||
|
|
&src[i][start_index_src],
|
||
|
|
num_frames * sizeof(float));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
TEST_F(BlockerTest, TestBlockerMutuallyPrimeChunkandBlockSize) {
|
||
|
|
const size_t kNumInputChannels = 3;
|
||
|
|
const size_t kNumOutputChannels = 2;
|
||
|
|
const size_t kNumFrames = 10;
|
||
|
|
const size_t kBlockSize = 4;
|
||
|
|
const size_t kChunkSize = 5;
|
||
|
|
const size_t kShiftAmount = 2;
|
||
|
|
|
||
|
|
const float kInput[kNumInputChannels][kNumFrames] = {
|
||
|
|
{1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
|
||
|
|
{2, 2, 2, 2, 2, 2, 2, 2, 2, 2},
|
||
|
|
{3, 3, 3, 3, 3, 3, 3, 3, 3, 3}};
|
||
|
|
ChannelBuffer<float> input_cb(kNumFrames, kNumInputChannels);
|
||
|
|
input_cb.SetDataForTesting(kInput[0], sizeof(kInput) / sizeof(**kInput));
|
||
|
|
|
||
|
|
const float kExpectedOutput[kNumInputChannels][kNumFrames] = {
|
||
|
|
{6, 6, 12, 20, 20, 20, 20, 20, 20, 20},
|
||
|
|
{6, 6, 12, 28, 28, 28, 28, 28, 28, 28}};
|
||
|
|
ChannelBuffer<float> expected_output_cb(kNumFrames, kNumInputChannels);
|
||
|
|
expected_output_cb.SetDataForTesting(
|
||
|
|
kExpectedOutput[0], sizeof(kExpectedOutput) / sizeof(**kExpectedOutput));
|
||
|
|
|
||
|
|
const float kWindow[kBlockSize] = {2.f, 2.f, 2.f, 2.f};
|
||
|
|
|
||
|
|
ChannelBuffer<float> actual_output_cb(kNumFrames, kNumOutputChannels);
|
||
|
|
ChannelBuffer<float> input_chunk_cb(kChunkSize, kNumInputChannels);
|
||
|
|
ChannelBuffer<float> output_chunk_cb(kChunkSize, kNumOutputChannels);
|
||
|
|
|
||
|
|
PlusThreeBlockerCallback callback;
|
||
|
|
Blocker blocker(kChunkSize,
|
||
|
|
kBlockSize,
|
||
|
|
kNumInputChannels,
|
||
|
|
kNumOutputChannels,
|
||
|
|
kWindow,
|
||
|
|
kShiftAmount,
|
||
|
|
&callback);
|
||
|
|
|
||
|
|
RunTest(&blocker,
|
||
|
|
kChunkSize,
|
||
|
|
kNumFrames,
|
||
|
|
input_cb.channels(),
|
||
|
|
input_chunk_cb.channels(),
|
||
|
|
actual_output_cb.channels(),
|
||
|
|
output_chunk_cb.channels(),
|
||
|
|
kNumInputChannels,
|
||
|
|
kNumOutputChannels);
|
||
|
|
|
||
|
|
ValidateSignalEquality(expected_output_cb.channels(),
|
||
|
|
actual_output_cb.channels(),
|
||
|
|
kNumOutputChannels,
|
||
|
|
kNumFrames);
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST_F(BlockerTest, TestBlockerMutuallyPrimeShiftAndBlockSize) {
|
||
|
|
const size_t kNumInputChannels = 3;
|
||
|
|
const size_t kNumOutputChannels = 2;
|
||
|
|
const size_t kNumFrames = 12;
|
||
|
|
const size_t kBlockSize = 4;
|
||
|
|
const size_t kChunkSize = 6;
|
||
|
|
const size_t kShiftAmount = 3;
|
||
|
|
|
||
|
|
const float kInput[kNumInputChannels][kNumFrames] = {
|
||
|
|
{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
|
||
|
|
{2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2},
|
||
|
|
{3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3}};
|
||
|
|
ChannelBuffer<float> input_cb(kNumFrames, kNumInputChannels);
|
||
|
|
input_cb.SetDataForTesting(kInput[0], sizeof(kInput) / sizeof(**kInput));
|
||
|
|
|
||
|
|
const float kExpectedOutput[kNumOutputChannels][kNumFrames] = {
|
||
|
|
{6, 10, 10, 20, 10, 10, 20, 10, 10, 20, 10, 10},
|
||
|
|
{6, 14, 14, 28, 14, 14, 28, 14, 14, 28, 14, 14}};
|
||
|
|
ChannelBuffer<float> expected_output_cb(kNumFrames, kNumOutputChannels);
|
||
|
|
expected_output_cb.SetDataForTesting(
|
||
|
|
kExpectedOutput[0], sizeof(kExpectedOutput) / sizeof(**kExpectedOutput));
|
||
|
|
|
||
|
|
const float kWindow[kBlockSize] = {2.f, 2.f, 2.f, 2.f};
|
||
|
|
|
||
|
|
ChannelBuffer<float> actual_output_cb(kNumFrames, kNumOutputChannels);
|
||
|
|
ChannelBuffer<float> input_chunk_cb(kChunkSize, kNumInputChannels);
|
||
|
|
ChannelBuffer<float> output_chunk_cb(kChunkSize, kNumOutputChannels);
|
||
|
|
|
||
|
|
PlusThreeBlockerCallback callback;
|
||
|
|
Blocker blocker(kChunkSize,
|
||
|
|
kBlockSize,
|
||
|
|
kNumInputChannels,
|
||
|
|
kNumOutputChannels,
|
||
|
|
kWindow,
|
||
|
|
kShiftAmount,
|
||
|
|
&callback);
|
||
|
|
|
||
|
|
RunTest(&blocker,
|
||
|
|
kChunkSize,
|
||
|
|
kNumFrames,
|
||
|
|
input_cb.channels(),
|
||
|
|
input_chunk_cb.channels(),
|
||
|
|
actual_output_cb.channels(),
|
||
|
|
output_chunk_cb.channels(),
|
||
|
|
kNumInputChannels,
|
||
|
|
kNumOutputChannels);
|
||
|
|
|
||
|
|
ValidateSignalEquality(expected_output_cb.channels(),
|
||
|
|
actual_output_cb.channels(),
|
||
|
|
kNumOutputChannels,
|
||
|
|
kNumFrames);
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST_F(BlockerTest, TestBlockerNoOverlap) {
|
||
|
|
const size_t kNumInputChannels = 3;
|
||
|
|
const size_t kNumOutputChannels = 2;
|
||
|
|
const size_t kNumFrames = 12;
|
||
|
|
const size_t kBlockSize = 4;
|
||
|
|
const size_t kChunkSize = 4;
|
||
|
|
const size_t kShiftAmount = 4;
|
||
|
|
|
||
|
|
const float kInput[kNumInputChannels][kNumFrames] = {
|
||
|
|
{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
|
||
|
|
{2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2},
|
||
|
|
{3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3}};
|
||
|
|
ChannelBuffer<float> input_cb(kNumFrames, kNumInputChannels);
|
||
|
|
input_cb.SetDataForTesting(kInput[0], sizeof(kInput) / sizeof(**kInput));
|
||
|
|
|
||
|
|
const float kExpectedOutput[kNumOutputChannels][kNumFrames] = {
|
||
|
|
{10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10},
|
||
|
|
{14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14}};
|
||
|
|
ChannelBuffer<float> expected_output_cb(kNumFrames, kNumOutputChannels);
|
||
|
|
expected_output_cb.SetDataForTesting(
|
||
|
|
kExpectedOutput[0], sizeof(kExpectedOutput) / sizeof(**kExpectedOutput));
|
||
|
|
|
||
|
|
const float kWindow[kBlockSize] = {2.f, 2.f, 2.f, 2.f};
|
||
|
|
|
||
|
|
ChannelBuffer<float> actual_output_cb(kNumFrames, kNumOutputChannels);
|
||
|
|
ChannelBuffer<float> input_chunk_cb(kChunkSize, kNumInputChannels);
|
||
|
|
ChannelBuffer<float> output_chunk_cb(kChunkSize, kNumOutputChannels);
|
||
|
|
|
||
|
|
PlusThreeBlockerCallback callback;
|
||
|
|
Blocker blocker(kChunkSize,
|
||
|
|
kBlockSize,
|
||
|
|
kNumInputChannels,
|
||
|
|
kNumOutputChannels,
|
||
|
|
kWindow,
|
||
|
|
kShiftAmount,
|
||
|
|
&callback);
|
||
|
|
|
||
|
|
RunTest(&blocker,
|
||
|
|
kChunkSize,
|
||
|
|
kNumFrames,
|
||
|
|
input_cb.channels(),
|
||
|
|
input_chunk_cb.channels(),
|
||
|
|
actual_output_cb.channels(),
|
||
|
|
output_chunk_cb.channels(),
|
||
|
|
kNumInputChannels,
|
||
|
|
kNumOutputChannels);
|
||
|
|
|
||
|
|
ValidateSignalEquality(expected_output_cb.channels(),
|
||
|
|
actual_output_cb.channels(),
|
||
|
|
kNumOutputChannels,
|
||
|
|
kNumFrames);
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST_F(BlockerTest, InitialDelaysAreMinimum) {
|
||
|
|
const size_t kNumInputChannels = 3;
|
||
|
|
const size_t kNumOutputChannels = 2;
|
||
|
|
const size_t kNumFrames = 1280;
|
||
|
|
const size_t kChunkSize[] =
|
||
|
|
{80, 80, 80, 80, 80, 80, 160, 160, 160, 160, 160, 160};
|
||
|
|
const size_t kBlockSize[] =
|
||
|
|
{64, 64, 64, 128, 128, 128, 128, 128, 128, 256, 256, 256};
|
||
|
|
const size_t kShiftAmount[] =
|
||
|
|
{16, 32, 64, 32, 64, 128, 32, 64, 128, 64, 128, 256};
|
||
|
|
const size_t kInitialDelay[] =
|
||
|
|
{48, 48, 48, 112, 112, 112, 96, 96, 96, 224, 224, 224};
|
||
|
|
|
||
|
|
float input[kNumInputChannels][kNumFrames];
|
||
|
|
for (size_t i = 0; i < kNumInputChannels; ++i) {
|
||
|
|
for (size_t j = 0; j < kNumFrames; ++j) {
|
||
|
|
input[i][j] = i + 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
ChannelBuffer<float> input_cb(kNumFrames, kNumInputChannels);
|
||
|
|
input_cb.SetDataForTesting(input[0], sizeof(input) / sizeof(**input));
|
||
|
|
|
||
|
|
ChannelBuffer<float> output_cb(kNumFrames, kNumOutputChannels);
|
||
|
|
|
||
|
|
CopyBlockerCallback callback;
|
||
|
|
|
||
|
|
for (size_t i = 0; i < arraysize(kChunkSize); ++i) {
|
||
|
|
std::unique_ptr<float[]> window(new float[kBlockSize[i]]);
|
||
|
|
for (size_t j = 0; j < kBlockSize[i]; ++j) {
|
||
|
|
window[j] = 1.f;
|
||
|
|
}
|
||
|
|
|
||
|
|
ChannelBuffer<float> input_chunk_cb(kChunkSize[i], kNumInputChannels);
|
||
|
|
ChannelBuffer<float> output_chunk_cb(kChunkSize[i], kNumOutputChannels);
|
||
|
|
|
||
|
|
Blocker blocker(kChunkSize[i],
|
||
|
|
kBlockSize[i],
|
||
|
|
kNumInputChannels,
|
||
|
|
kNumOutputChannels,
|
||
|
|
window.get(),
|
||
|
|
kShiftAmount[i],
|
||
|
|
&callback);
|
||
|
|
|
||
|
|
RunTest(&blocker,
|
||
|
|
kChunkSize[i],
|
||
|
|
kNumFrames,
|
||
|
|
input_cb.channels(),
|
||
|
|
input_chunk_cb.channels(),
|
||
|
|
output_cb.channels(),
|
||
|
|
output_chunk_cb.channels(),
|
||
|
|
kNumInputChannels,
|
||
|
|
kNumOutputChannels);
|
||
|
|
|
||
|
|
ValidateInitialDelay(output_cb.channels(),
|
||
|
|
kNumOutputChannels,
|
||
|
|
kNumFrames,
|
||
|
|
kInitialDelay[i]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace webrtc
|