|  | /* | 
|  | *  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 "api/array_view.h" | 
|  | #include "modules/audio_processing/audio_buffer.h" | 
|  | #include "modules/audio_processing/gain_control_impl.h" | 
|  | #include "modules/audio_processing/test/audio_buffer_tools.h" | 
|  | #include "modules/audio_processing/test/bitexactness_tools.h" | 
|  | #include "test/gtest.h" | 
|  |  | 
|  | namespace webrtc { | 
|  | namespace { | 
|  |  | 
|  | const int kNumFramesToProcess = 100; | 
|  |  | 
|  | void ProcessOneFrame(int sample_rate_hz, | 
|  | AudioBuffer* render_audio_buffer, | 
|  | AudioBuffer* capture_audio_buffer, | 
|  | GainControlImpl* gain_controller) { | 
|  | if (sample_rate_hz > AudioProcessing::kSampleRate16kHz) { | 
|  | render_audio_buffer->SplitIntoFrequencyBands(); | 
|  | capture_audio_buffer->SplitIntoFrequencyBands(); | 
|  | } | 
|  |  | 
|  | std::vector<int16_t> render_audio; | 
|  | GainControlImpl::PackRenderAudioBuffer(*render_audio_buffer, &render_audio); | 
|  | gain_controller->ProcessRenderAudio(render_audio); | 
|  | gain_controller->AnalyzeCaptureAudio(*capture_audio_buffer); | 
|  | gain_controller->ProcessCaptureAudio(capture_audio_buffer, false); | 
|  |  | 
|  | if (sample_rate_hz > AudioProcessing::kSampleRate16kHz) { | 
|  | capture_audio_buffer->MergeFrequencyBands(); | 
|  | } | 
|  | } | 
|  |  | 
|  | void SetupComponent(int sample_rate_hz, | 
|  | GainControl::Mode mode, | 
|  | int target_level_dbfs, | 
|  | int stream_analog_level, | 
|  | int compression_gain_db, | 
|  | bool enable_limiter, | 
|  | int analog_level_min, | 
|  | int analog_level_max, | 
|  | GainControlImpl* gain_controller) { | 
|  | gain_controller->Initialize(1, sample_rate_hz); | 
|  | GainControl* gc = static_cast<GainControl*>(gain_controller); | 
|  | gc->set_mode(mode); | 
|  | gc->set_stream_analog_level(stream_analog_level); | 
|  | gc->set_target_level_dbfs(target_level_dbfs); | 
|  | gc->set_compression_gain_db(compression_gain_db); | 
|  | gc->enable_limiter(enable_limiter); | 
|  | gc->set_analog_level_limits(analog_level_min, analog_level_max); | 
|  | } | 
|  |  | 
|  | void RunBitExactnessTest(int sample_rate_hz, | 
|  | size_t num_channels, | 
|  | GainControl::Mode mode, | 
|  | int target_level_dbfs, | 
|  | int stream_analog_level, | 
|  | int compression_gain_db, | 
|  | bool enable_limiter, | 
|  | int analog_level_min, | 
|  | int analog_level_max, | 
|  | int achieved_stream_analog_level_reference, | 
|  | rtc::ArrayView<const float> output_reference) { | 
|  | GainControlImpl gain_controller; | 
|  | SetupComponent(sample_rate_hz, mode, target_level_dbfs, stream_analog_level, | 
|  | compression_gain_db, enable_limiter, analog_level_min, | 
|  | analog_level_max, &gain_controller); | 
|  |  | 
|  | 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.sample_rate_hz(), render_config.num_channels(), | 
|  | render_config.sample_rate_hz(), 1, render_config.sample_rate_hz(), 1); | 
|  | 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.sample_rate_hz(), capture_config.num_channels(), | 
|  | capture_config.sample_rate_hz(), 1, capture_config.sample_rate_hz(), 1); | 
|  | 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, &render_buffer, &capture_buffer, | 
|  | &gain_controller); | 
|  | } | 
|  |  | 
|  | // Extract and verify the test results. | 
|  | std::vector<float> capture_output; | 
|  | test::ExtractVectorFromAudioBuffer(capture_config, &capture_buffer, | 
|  | &capture_output); | 
|  |  | 
|  | EXPECT_EQ(achieved_stream_analog_level_reference, | 
|  | gain_controller.stream_analog_level()); | 
|  |  | 
|  | // 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)); | 
|  | } | 
|  |  | 
|  | }  // 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(GainControlBitExactnessTest, | 
|  | Mono16kHz_AdaptiveAnalog_Tl10_SL50_CG5_Lim_AL0_100) { | 
|  | #else | 
|  | TEST(GainControlBitExactnessTest, | 
|  | DISABLED_Mono16kHz_AdaptiveAnalog_Tl10_SL50_CG5_Lim_AL0_100) { | 
|  | #endif | 
|  | const int kStreamAnalogLevelReference = 50; | 
|  | const float kOutputReference[] = {-0.006561f, -0.004608f, -0.002899f}; | 
|  | RunBitExactnessTest(16000, 1, GainControl::Mode::kAdaptiveAnalog, 10, 50, 5, | 
|  | true, 0, 100, kStreamAnalogLevelReference, | 
|  | kOutputReference); | 
|  | } | 
|  |  | 
|  | #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ | 
|  | defined(WEBRTC_ANDROID)) | 
|  | TEST(GainControlBitExactnessTest, | 
|  | Stereo16kHz_AdaptiveAnalog_Tl10_SL50_CG5_Lim_AL0_100) { | 
|  | #else | 
|  | TEST(GainControlBitExactnessTest, | 
|  | DISABLED_Stereo16kHz_AdaptiveAnalog_Tl10_SL50_CG5_Lim_AL0_100) { | 
|  | #endif | 
|  | const int kStreamAnalogLevelReference = 50; | 
|  | const float kOutputReference[] = {-0.027313f, -0.015900f, -0.028107f, | 
|  | -0.027313f, -0.015900f, -0.028107f}; | 
|  | RunBitExactnessTest(16000, 2, GainControl::Mode::kAdaptiveAnalog, 10, 50, 5, | 
|  | true, 0, 100, kStreamAnalogLevelReference, | 
|  | kOutputReference); | 
|  | } | 
|  |  | 
|  | #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ | 
|  | defined(WEBRTC_ANDROID)) | 
|  | TEST(GainControlBitExactnessTest, | 
|  | Mono32kHz_AdaptiveAnalog_Tl10_SL50_CG5_Lim_AL0_100) { | 
|  | #else | 
|  | TEST(GainControlBitExactnessTest, | 
|  | DISABLED_Mono32kHz_AdaptiveAnalog_Tl10_SL50_CG5_Lim_AL0_100) { | 
|  | #endif | 
|  | const int kStreamAnalogLevelReference = 50; | 
|  | const float kOutputReference[] = {-0.010162f, -0.009155f, -0.008301f}; | 
|  | RunBitExactnessTest(32000, 1, GainControl::Mode::kAdaptiveAnalog, 10, 50, 5, | 
|  | true, 0, 100, kStreamAnalogLevelReference, | 
|  | kOutputReference); | 
|  | } | 
|  |  | 
|  | #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ | 
|  | defined(WEBRTC_ANDROID)) | 
|  | TEST(GainControlBitExactnessTest, | 
|  | Mono48kHz_AdaptiveAnalog_Tl10_SL50_CG5_Lim_AL0_100) { | 
|  | #else | 
|  | TEST(GainControlBitExactnessTest, | 
|  | DISABLED_Mono48kHz_AdaptiveAnalog_Tl10_SL50_CG5_Lim_AL0_100) { | 
|  | #endif | 
|  | const int kStreamAnalogLevelReference = 50; | 
|  | const float kOutputReference[] = {-0.010162f, -0.009155f, -0.008301f}; | 
|  | RunBitExactnessTest(32000, 1, GainControl::Mode::kAdaptiveAnalog, 10, 50, 5, | 
|  | true, 0, 100, kStreamAnalogLevelReference, | 
|  | kOutputReference); | 
|  | } | 
|  |  | 
|  | #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ | 
|  | defined(WEBRTC_ANDROID)) | 
|  | TEST(GainControlBitExactnessTest, | 
|  | Mono16kHz_AdaptiveDigital_Tl10_SL50_CG5_Lim_AL0_100) { | 
|  | #else | 
|  | TEST(GainControlBitExactnessTest, | 
|  | DISABLED_Mono16kHz_AdaptiveDigital_Tl10_SL50_CG5_Lim_AL0_100) { | 
|  | #endif | 
|  | const int kStreamAnalogLevelReference = 50; | 
|  | const float kOutputReference[] = {-0.003967f, -0.002777f, -0.001770f}; | 
|  | RunBitExactnessTest(16000, 1, GainControl::Mode::kAdaptiveDigital, 10, 50, 5, | 
|  | true, 0, 100, kStreamAnalogLevelReference, | 
|  | kOutputReference); | 
|  | } | 
|  |  | 
|  | #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ | 
|  | defined(WEBRTC_ANDROID)) | 
|  | TEST(GainControlBitExactnessTest, | 
|  | Stereo16kHz_AdaptiveDigital_Tl10_SL50_CG5_Lim_AL0_100) { | 
|  | #else | 
|  | TEST(GainControlBitExactnessTest, | 
|  | DISABLED_Stereo16kHz_AdaptiveDigital_Tl10_SL50_CG5_Lim_AL0_100) { | 
|  | #endif | 
|  | const int kStreamAnalogLevelReference = 50; | 
|  | const float kOutputReference[] = {-0.015411f, -0.008972f, -0.015839f, | 
|  | -0.015411f, -0.008972f, -0.015839f}; | 
|  | RunBitExactnessTest(16000, 2, GainControl::Mode::kAdaptiveDigital, 10, 50, 5, | 
|  | true, 0, 100, kStreamAnalogLevelReference, | 
|  | kOutputReference); | 
|  | } | 
|  |  | 
|  | #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ | 
|  | defined(WEBRTC_ANDROID)) | 
|  | TEST(GainControlBitExactnessTest, | 
|  | Mono32kHz_AdaptiveDigital_Tl10_SL50_CG5_Lim_AL0_100) { | 
|  | #else | 
|  | TEST(GainControlBitExactnessTest, | 
|  | DISABLED_Mono32kHz_AdaptiveDigital_Tl10_SL50_CG5_Lim_AL0_100) { | 
|  | #endif | 
|  | const int kStreamAnalogLevelReference = 50; | 
|  | const float kOutputReference[] = {-0.006134f, -0.005524f, -0.005005f}; | 
|  | RunBitExactnessTest(32000, 1, GainControl::Mode::kAdaptiveDigital, 10, 50, 5, | 
|  | true, 0, 100, kStreamAnalogLevelReference, | 
|  | kOutputReference); | 
|  | } | 
|  |  | 
|  | #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ | 
|  | defined(WEBRTC_ANDROID)) | 
|  | TEST(GainControlBitExactnessTest, | 
|  | Mono48kHz_AdaptiveDigital_Tl10_SL50_CG5_Lim_AL0_100) { | 
|  | #else | 
|  | TEST(GainControlBitExactnessTest, | 
|  | DISABLED_Mono48kHz_AdaptiveDigital_Tl10_SL50_CG5_Lim_AL0_100) { | 
|  | #endif | 
|  | const int kStreamAnalogLevelReference = 50; | 
|  | const float kOutputReference[] = {-0.006134f, -0.005524f, -0.005005}; | 
|  | RunBitExactnessTest(32000, 1, GainControl::Mode::kAdaptiveDigital, 10, 50, 5, | 
|  | true, 0, 100, kStreamAnalogLevelReference, | 
|  | kOutputReference); | 
|  | } | 
|  |  | 
|  | #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ | 
|  | defined(WEBRTC_ANDROID)) | 
|  | TEST(GainControlBitExactnessTest, | 
|  | Mono16kHz_FixedDigital_Tl10_SL50_CG5_Lim_AL0_100) { | 
|  | #else | 
|  | TEST(GainControlBitExactnessTest, | 
|  | DISABLED_Mono16kHz_FixedDigital_Tl10_SL50_CG5_Lim_AL0_100) { | 
|  | #endif | 
|  | const int kStreamAnalogLevelReference = 50; | 
|  | const float kOutputReference[] = {-0.011749f, -0.008270f, -0.005219f}; | 
|  | RunBitExactnessTest(16000, 1, GainControl::Mode::kFixedDigital, 10, 50, 5, | 
|  | true, 0, 100, kStreamAnalogLevelReference, | 
|  | kOutputReference); | 
|  | } | 
|  |  | 
|  | #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ | 
|  | defined(WEBRTC_ANDROID)) | 
|  | TEST(GainControlBitExactnessTest, | 
|  | Stereo16kHz_FixedDigital_Tl10_SL50_CG5_Lim_AL0_100) { | 
|  | #else | 
|  | TEST(GainControlBitExactnessTest, | 
|  | DISABLED_Stereo16kHz_FixedDigital_Tl10_SL50_CG5_Lim_AL0_100) { | 
|  | #endif | 
|  | const int kStreamAnalogLevelReference = 50; | 
|  | const float kOutputReference[] = {-0.048896f, -0.028479f, -0.050345f, | 
|  | -0.048896f, -0.028479f, -0.050345f}; | 
|  | RunBitExactnessTest(16000, 2, GainControl::Mode::kFixedDigital, 10, 50, 5, | 
|  | true, 0, 100, kStreamAnalogLevelReference, | 
|  | kOutputReference); | 
|  | } | 
|  |  | 
|  | #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ | 
|  | defined(WEBRTC_ANDROID)) | 
|  | TEST(GainControlBitExactnessTest, | 
|  | Mono32kHz_FixedDigital_Tl10_SL50_CG5_Lim_AL0_100) { | 
|  | #else | 
|  | TEST(GainControlBitExactnessTest, | 
|  | DISABLED_Mono32kHz_FixedDigital_Tl10_SL50_CG5_Lim_AL0_100) { | 
|  | #endif | 
|  | const int kStreamAnalogLevelReference = 50; | 
|  | const float kOutputReference[] = {-0.018158f, -0.016357f, -0.014832f}; | 
|  | RunBitExactnessTest(32000, 1, GainControl::Mode::kFixedDigital, 10, 50, 5, | 
|  | true, 0, 100, kStreamAnalogLevelReference, | 
|  | kOutputReference); | 
|  | } | 
|  |  | 
|  | #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ | 
|  | defined(WEBRTC_ANDROID)) | 
|  | TEST(GainControlBitExactnessTest, | 
|  | Mono48kHz_FixedDigital_Tl10_SL50_CG5_Lim_AL0_100) { | 
|  | #else | 
|  | TEST(GainControlBitExactnessTest, | 
|  | DISABLED_Mono48kHz_FixedDigital_Tl10_SL50_CG5_Lim_AL0_100) { | 
|  | #endif | 
|  | const int kStreamAnalogLevelReference = 50; | 
|  | const float kOutputReference[] = {-0.018158f, -0.016357f, -0.014832f}; | 
|  | RunBitExactnessTest(32000, 1, GainControl::Mode::kFixedDigital, 10, 50, 5, | 
|  | true, 0, 100, kStreamAnalogLevelReference, | 
|  | kOutputReference); | 
|  | } | 
|  |  | 
|  | #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ | 
|  | defined(WEBRTC_ANDROID)) | 
|  | TEST(GainControlBitExactnessTest, | 
|  | Mono16kHz_AdaptiveAnalog_Tl10_SL10_CG5_Lim_AL0_100) { | 
|  | #else | 
|  | TEST(GainControlBitExactnessTest, | 
|  | DISABLED_Mono16kHz_AdaptiveAnalog_Tl10_SL10_CG5_Lim_AL0_100) { | 
|  | #endif | 
|  | const int kStreamAnalogLevelReference = 12; | 
|  | const float kOutputReference[] = {-0.006561f, -0.004608f, -0.002899f}; | 
|  | RunBitExactnessTest(16000, 1, GainControl::Mode::kAdaptiveAnalog, 10, 10, 5, | 
|  | true, 0, 100, kStreamAnalogLevelReference, | 
|  | kOutputReference); | 
|  | } | 
|  |  | 
|  | #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ | 
|  | defined(WEBRTC_ANDROID)) | 
|  | TEST(GainControlBitExactnessTest, | 
|  | Mono16kHz_AdaptiveAnalog_Tl10_SL100_CG5_Lim_AL70_80) { | 
|  | #else | 
|  | TEST(GainControlBitExactnessTest, | 
|  | DISABLED_Mono16kHz_AdaptiveAnalog_Tl10_SL100_CG5_Lim_AL70_80) { | 
|  | #endif | 
|  | const int kStreamAnalogLevelReference = 100; | 
|  | const float kOutputReference[] = {-0.003998f, -0.002808f, -0.001770f}; | 
|  | RunBitExactnessTest(16000, 1, GainControl::Mode::kAdaptiveAnalog, 10, 100, 5, | 
|  | true, 70, 80, kStreamAnalogLevelReference, | 
|  | kOutputReference); | 
|  | } | 
|  |  | 
|  | #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ | 
|  | defined(WEBRTC_ANDROID)) | 
|  | TEST(GainControlBitExactnessTest, | 
|  | Mono16kHz_AdaptiveDigital_Tl10_SL100_CG5_NoLim_AL0_100) { | 
|  | #else | 
|  | TEST(GainControlBitExactnessTest, | 
|  | DISABLED_Mono16kHz_AdaptiveDigital_Tl10_SL100_CG5_NoLim_AL0_100) { | 
|  | #endif | 
|  | const int kStreamAnalogLevelReference = 100; | 
|  | const float kOutputReference[] = {-0.004028f, -0.002838f, -0.001770f}; | 
|  | RunBitExactnessTest(16000, 1, GainControl::Mode::kAdaptiveDigital, 10, 100, 5, | 
|  | false, 0, 100, kStreamAnalogLevelReference, | 
|  | kOutputReference); | 
|  | } | 
|  |  | 
|  | #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ | 
|  | defined(WEBRTC_ANDROID)) | 
|  | TEST(GainControlBitExactnessTest, | 
|  | Mono16kHz_AdaptiveDigital_Tl40_SL100_CG5_Lim_AL0_100) { | 
|  | #else | 
|  | TEST(GainControlBitExactnessTest, | 
|  | DISABLED_Mono16kHz_AdaptiveDigital_Tl40_SL100_CG5_Lim_AL0_100) { | 
|  | #endif | 
|  | const int kStreamAnalogLevelReference = 100; | 
|  | const float kOutputReference[] = {-0.008728f, -0.006134f, -0.003845f}; | 
|  | RunBitExactnessTest(16000, 1, GainControl::Mode::kAdaptiveDigital, 40, 100, 5, | 
|  | true, 0, 100, kStreamAnalogLevelReference, | 
|  | kOutputReference); | 
|  | } | 
|  |  | 
|  | #if !(defined(WEBRTC_ARCH_ARM64) || defined(WEBRTC_ARCH_ARM) || \ | 
|  | defined(WEBRTC_ANDROID)) | 
|  | TEST(GainControlBitExactnessTest, | 
|  | Mono16kHz_AdaptiveDigital_Tl10_SL100_CG30_Lim_AL0_100) { | 
|  | #else | 
|  | TEST(GainControlBitExactnessTest, | 
|  | DISABLED_Mono16kHz_AdaptiveDigital_Tl10_SL100_CG30_Lim_AL0_100) { | 
|  | #endif | 
|  | const int kStreamAnalogLevelReference = 100; | 
|  | const float kOutputReference[] = {-0.005859f, -0.004120f, -0.002594f}; | 
|  | RunBitExactnessTest(16000, 1, GainControl::Mode::kAdaptiveDigital, 10, 100, | 
|  | 30, true, 0, 100, kStreamAnalogLevelReference, | 
|  | kOutputReference); | 
|  | } | 
|  |  | 
|  | }  // namespace webrtc |