| /* |
| * Copyright (c) 2016 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 <vector> |
| |
| #include "webrtc/base/array_view.h" |
| #include "webrtc/modules/audio_processing/audio_buffer.h" |
| #include "webrtc/modules/audio_processing/echo_cancellation_impl.h" |
| #include "webrtc/modules/audio_processing/test/audio_buffer_tools.h" |
| #include "webrtc/modules/audio_processing/test/bitexactness_tools.h" |
| #include "webrtc/test/gtest.h" |
| |
| namespace webrtc { |
| namespace { |
| |
| const int kNumFramesToProcess = 100; |
| |
| void SetupComponent(int sample_rate_hz, |
| EchoCancellation::SuppressionLevel suppression_level, |
| bool drift_compensation_enabled, |
| EchoCancellationImpl* echo_canceller) { |
| echo_canceller->Initialize(sample_rate_hz, 1, 1, 1); |
| EchoCancellation* ec = static_cast<EchoCancellation*>(echo_canceller); |
| ec->Enable(true); |
| ec->set_suppression_level(suppression_level); |
| ec->enable_drift_compensation(drift_compensation_enabled); |
| |
| Config config; |
| config.Set<DelayAgnostic>(new DelayAgnostic(true)); |
| config.Set<ExtendedFilter>(new ExtendedFilter(true)); |
| echo_canceller->SetExtraOptions(config); |
| } |
| |
| void ProcessOneFrame(int sample_rate_hz, |
| int stream_delay_ms, |
| bool drift_compensation_enabled, |
| int stream_drift_samples, |
| AudioBuffer* render_audio_buffer, |
| AudioBuffer* capture_audio_buffer, |
| EchoCancellationImpl* echo_canceller) { |
| if (sample_rate_hz > AudioProcessing::kSampleRate16kHz) { |
| render_audio_buffer->SplitIntoFrequencyBands(); |
| capture_audio_buffer->SplitIntoFrequencyBands(); |
| } |
| |
| echo_canceller->ProcessRenderAudio(render_audio_buffer); |
| |
| if (drift_compensation_enabled) { |
| static_cast<EchoCancellation*>(echo_canceller) |
| ->set_stream_drift_samples(stream_drift_samples); |
| } |
| |
| echo_canceller->ProcessCaptureAudio(capture_audio_buffer, stream_delay_ms); |
| |
| if (sample_rate_hz > AudioProcessing::kSampleRate16kHz) { |
| capture_audio_buffer->MergeFrequencyBands(); |
| } |
| } |
| |
| void RunBitexactnessTest(int sample_rate_hz, |
| size_t num_channels, |
| int stream_delay_ms, |
| bool drift_compensation_enabled, |
| int stream_drift_samples, |
| EchoCancellation::SuppressionLevel suppression_level, |
| bool stream_has_echo_reference, |
| const rtc::ArrayView<const float>& output_reference) { |
| rtc::CriticalSection crit_render; |
| rtc::CriticalSection crit_capture; |
| EchoCancellationImpl echo_canceller(&crit_render, &crit_capture); |
| SetupComponent(sample_rate_hz, suppression_level, drift_compensation_enabled, |
| &echo_canceller); |
| |
| const int samples_per_channel = rtc::CheckedDivExact(sample_rate_hz, 100); |
| const StreamConfig render_config(sample_rate_hz, num_channels, false); |
| AudioBuffer render_buffer( |
| render_config.num_frames(), render_config.num_channels(), |
| render_config.num_frames(), 1, render_config.num_frames()); |
| test::InputAudioFile render_file( |
| test::GetApmRenderTestVectorFileName(sample_rate_hz)); |
| std::vector<float> render_input(samples_per_channel * num_channels); |
| |
| const StreamConfig capture_config(sample_rate_hz, num_channels, false); |
| AudioBuffer capture_buffer( |
| capture_config.num_frames(), capture_config.num_channels(), |
| capture_config.num_frames(), 1, capture_config.num_frames()); |
| test::InputAudioFile capture_file( |
| test::GetApmCaptureTestVectorFileName(sample_rate_hz)); |
| std::vector<float> capture_input(samples_per_channel * num_channels); |
| |
| for (int frame_no = 0; frame_no < kNumFramesToProcess; ++frame_no) { |
| ReadFloatSamplesFromStereoFile(samples_per_channel, num_channels, |
| &render_file, render_input); |
| ReadFloatSamplesFromStereoFile(samples_per_channel, num_channels, |
| &capture_file, capture_input); |
| |
| test::CopyVectorToAudioBuffer(render_config, render_input, &render_buffer); |
| test::CopyVectorToAudioBuffer(capture_config, capture_input, |
| &capture_buffer); |
| |
| ProcessOneFrame(sample_rate_hz, stream_delay_ms, drift_compensation_enabled, |
| stream_drift_samples, &render_buffer, &capture_buffer, |
| &echo_canceller); |
| } |
| |
| // Extract and verify the test results. |
| std::vector<float> capture_output; |
| test::ExtractVectorFromAudioBuffer(capture_config, &capture_buffer, |
| &capture_output); |
| |
| EXPECT_EQ(stream_has_echo_reference, |
| static_cast<EchoCancellation*>(&echo_canceller)->stream_has_echo()); |
| |
| // Compare the output with the reference. Only the first values of the output |
| // from last frame processed are compared in order not having to specify all |
| // preceeding frames as testvectors. As the algorithm being tested has a |
| // memory, testing only the last frame implicitly also tests the preceeding |
| // frames. |
| const float kElementErrorBound = 1.0f / 32768.0f; |
| EXPECT_TRUE(test::VerifyDeinterleavedArray( |
| capture_config.num_frames(), capture_config.num_channels(), |
| output_reference, capture_output, kElementErrorBound)); |
| } |
| |
| const bool kStreamHasEchoReference = false; |
| |
| } // namespace |
| |
| // TODO(peah): Activate all these tests for ARM and ARM64 once the issue on the |
| // Chromium ARM and ARM64 boths have been identified. This is tracked in the |
| // issue https://bugs.chromium.org/p/webrtc/issues/detail?id=5711. |
| |
| #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ |
| defined(WEBRTC_ANDROID)) |
| TEST(EchoCancellationBitExactnessTest, |
| Mono8kHz_HighLevel_NoDrift_StreamDelay0) { |
| #else |
| TEST(EchoCancellationBitExactnessTest, |
| DISABLED_Mono8kHz_HighLevel_NoDrift_StreamDelay0) { |
| #endif |
| const float kOutputReference[] = {-0.006622f, -0.002747f, 0.001587f}; |
| RunBitexactnessTest(8000, 1, 0, false, 0, |
| EchoCancellation::SuppressionLevel::kHighSuppression, |
| kStreamHasEchoReference, kOutputReference); |
| } |
| |
| #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ |
| defined(WEBRTC_ANDROID)) |
| TEST(EchoCancellationBitExactnessTest, |
| Mono16kHz_HighLevel_NoDrift_StreamDelay0) { |
| #else |
| TEST(EchoCancellationBitExactnessTest, |
| DISABLED_Mono16kHz_HighLevel_NoDrift_StreamDelay0) { |
| #endif |
| const float kOutputReference[] = {-0.006561f, -0.004608f, -0.002899f}; |
| RunBitexactnessTest(16000, 1, 0, false, 0, |
| EchoCancellation::SuppressionLevel::kHighSuppression, |
| kStreamHasEchoReference, kOutputReference); |
| } |
| |
| #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ |
| defined(WEBRTC_ANDROID)) |
| TEST(EchoCancellationBitExactnessTest, |
| Mono32kHz_HighLevel_NoDrift_StreamDelay0) { |
| #else |
| TEST(EchoCancellationBitExactnessTest, |
| DISABLED_Mono32kHz_HighLevel_NoDrift_StreamDelay0) { |
| #endif |
| const float kOutputReference[] = {-0.010162f, -0.009155f, -0.008301f}; |
| RunBitexactnessTest(32000, 1, 0, false, 0, |
| EchoCancellation::SuppressionLevel::kHighSuppression, |
| kStreamHasEchoReference, kOutputReference); |
| } |
| |
| #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ |
| defined(WEBRTC_ANDROID)) |
| TEST(EchoCancellationBitExactnessTest, |
| Mono48kHz_HighLevel_NoDrift_StreamDelay0) { |
| #else |
| TEST(EchoCancellationBitExactnessTest, |
| DISABLED_Mono48kHz_HighLevel_NoDrift_StreamDelay0) { |
| #endif |
| const float kOutputReference[] = {-0.009554f, -0.009857f, -0.009868f}; |
| RunBitexactnessTest(48000, 1, 0, false, 0, |
| EchoCancellation::SuppressionLevel::kHighSuppression, |
| kStreamHasEchoReference, kOutputReference); |
| } |
| |
| #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ |
| defined(WEBRTC_ANDROID)) |
| TEST(EchoCancellationBitExactnessTest, |
| Mono16kHz_LowLevel_NoDrift_StreamDelay0) { |
| #else |
| TEST(EchoCancellationBitExactnessTest, |
| DISABLED_Mono16kHz_LowLevel_NoDrift_StreamDelay0) { |
| #endif |
| const float kOutputReference[] = {-0.006561f, -0.004608f, -0.002899f}; |
| RunBitexactnessTest(16000, 1, 0, false, 0, |
| EchoCancellation::SuppressionLevel::kLowSuppression, |
| kStreamHasEchoReference, kOutputReference); |
| } |
| |
| #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ |
| defined(WEBRTC_ANDROID)) |
| TEST(EchoCancellationBitExactnessTest, |
| Mono16kHz_ModerateLevel_NoDrift_StreamDelay0) { |
| #else |
| TEST(EchoCancellationBitExactnessTest, |
| DISABLED_Mono16kHz_ModerateLevel_NoDrift_StreamDelay0) { |
| #endif |
| const float kOutputReference[] = {-0.006561f, -0.004608f, -0.002899f}; |
| RunBitexactnessTest(16000, 1, 0, false, 0, |
| EchoCancellation::SuppressionLevel::kModerateSuppression, |
| kStreamHasEchoReference, kOutputReference); |
| } |
| |
| #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ |
| defined(WEBRTC_ANDROID)) |
| TEST(EchoCancellationBitExactnessTest, |
| Mono16kHz_HighLevel_NoDrift_StreamDelay10) { |
| #else |
| TEST(EchoCancellationBitExactnessTest, |
| DISABLED_Mono16kHz_HighLevel_NoDrift_StreamDelay10) { |
| #endif |
| const float kOutputReference[] = {-0.006561f, -0.004608f, -0.002899f}; |
| RunBitexactnessTest(16000, 1, 10, false, 0, |
| EchoCancellation::SuppressionLevel::kHighSuppression, |
| kStreamHasEchoReference, kOutputReference); |
| } |
| |
| #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ |
| defined(WEBRTC_ANDROID)) |
| TEST(EchoCancellationBitExactnessTest, |
| Mono16kHz_HighLevel_NoDrift_StreamDelay20) { |
| #else |
| TEST(EchoCancellationBitExactnessTest, |
| DISABLED_Mono16kHz_HighLevel_NoDrift_StreamDelay20) { |
| #endif |
| const float kOutputReference[] = {-0.006561f, -0.004608f, -0.002899f}; |
| RunBitexactnessTest(16000, 1, 20, false, 0, |
| EchoCancellation::SuppressionLevel::kHighSuppression, |
| kStreamHasEchoReference, kOutputReference); |
| } |
| |
| #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ |
| defined(WEBRTC_ANDROID)) |
| TEST(EchoCancellationBitExactnessTest, |
| Mono16kHz_HighLevel_Drift0_StreamDelay0) { |
| #else |
| TEST(EchoCancellationBitExactnessTest, |
| DISABLED_Mono16kHz_HighLevel_Drift0_StreamDelay0) { |
| #endif |
| const float kOutputReference[] = {-0.006561f, -0.004608f, -0.002899f}; |
| RunBitexactnessTest(16000, 1, 0, true, 0, |
| EchoCancellation::SuppressionLevel::kHighSuppression, |
| kStreamHasEchoReference, kOutputReference); |
| } |
| |
| #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ |
| defined(WEBRTC_ANDROID)) |
| TEST(EchoCancellationBitExactnessTest, |
| Mono16kHz_HighLevel_Drift5_StreamDelay0) { |
| #else |
| TEST(EchoCancellationBitExactnessTest, |
| DISABLED_Mono16kHz_HighLevel_Drift5_StreamDelay0) { |
| #endif |
| const float kOutputReference[] = {-0.006561f, -0.004608f, -0.002899f}; |
| RunBitexactnessTest(16000, 1, 0, true, 5, |
| EchoCancellation::SuppressionLevel::kHighSuppression, |
| kStreamHasEchoReference, kOutputReference); |
| } |
| |
| #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ |
| defined(WEBRTC_ANDROID)) |
| TEST(EchoCancellationBitExactnessTest, |
| Stereo8kHz_HighLevel_NoDrift_StreamDelay0) { |
| #else |
| TEST(EchoCancellationBitExactnessTest, |
| DISABLED_Stereo8kHz_HighLevel_NoDrift_StreamDelay0) { |
| #endif |
| const float kOutputReference[] = {-0.027359f, -0.015823f, -0.028488f, |
| -0.027359f, -0.015823f, -0.028488f}; |
| RunBitexactnessTest(8000, 2, 0, false, 0, |
| EchoCancellation::SuppressionLevel::kHighSuppression, |
| kStreamHasEchoReference, kOutputReference); |
| } |
| |
| #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ |
| defined(WEBRTC_ANDROID)) |
| TEST(EchoCancellationBitExactnessTest, |
| Stereo16kHz_HighLevel_NoDrift_StreamDelay0) { |
| #else |
| TEST(EchoCancellationBitExactnessTest, |
| DISABLED_Stereo16kHz_HighLevel_NoDrift_StreamDelay0) { |
| #endif |
| const float kOutputReference[] = {-0.027298f, -0.015900f, -0.028107f, |
| -0.027298f, -0.015900f, -0.028107f}; |
| RunBitexactnessTest(16000, 2, 0, false, 0, |
| EchoCancellation::SuppressionLevel::kHighSuppression, |
| kStreamHasEchoReference, kOutputReference); |
| } |
| |
| #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ |
| defined(WEBRTC_ANDROID)) |
| TEST(EchoCancellationBitExactnessTest, |
| Stereo32kHz_HighLevel_NoDrift_StreamDelay0) { |
| #else |
| TEST(EchoCancellationBitExactnessTest, |
| DISABLED_Stereo32kHz_HighLevel_NoDrift_StreamDelay0) { |
| #endif |
| const float kOutputReference[] = {0.004547f, -0.004456f, -0.000946f, |
| 0.004547f, -0.004456f, -0.000946f}; |
| RunBitexactnessTest(32000, 2, 0, false, 0, |
| EchoCancellation::SuppressionLevel::kHighSuppression, |
| kStreamHasEchoReference, kOutputReference); |
| } |
| |
| #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ |
| defined(WEBRTC_ANDROID)) |
| TEST(EchoCancellationBitExactnessTest, |
| Stereo48kHz_HighLevel_NoDrift_StreamDelay0) { |
| #else |
| TEST(EchoCancellationBitExactnessTest, |
| DISABLED_Stereo48kHz_HighLevel_NoDrift_StreamDelay0) { |
| #endif |
| const float kOutputReference[] = {-0.003500f, -0.001894f, -0.003176f, |
| -0.003500f, -0.001894f, -0.003176f}; |
| RunBitexactnessTest(48000, 2, 0, false, 0, |
| EchoCancellation::SuppressionLevel::kHighSuppression, |
| kStreamHasEchoReference, kOutputReference); |
| } |
| |
| } // namespace webrtc |
