Added a bitexactness test for the gain controller in the audio processing module.
BUG=webrtc:5339 Review URL: https://codereview.webrtc.org/1812433002 Cr-Commit-Position: refs/heads/master@{#12124}
This commit is contained in:
peah
315
webrtc/modules/audio_processing/gain_control_unittest.cc
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315
webrtc/modules/audio_processing/gain_control_unittest.cc
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/*
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* Copyright (c) 2016 The WebRTC 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 <vector>
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#include "testing/gtest/include/gtest/gtest.h"
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#include "webrtc/base/array_view.h"
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#include "webrtc/modules/audio_processing/audio_buffer.h"
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#include "webrtc/modules/audio_processing/gain_control_impl.h"
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#include "webrtc/modules/audio_processing/test/audio_buffer_tools.h"
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#include "webrtc/modules/audio_processing/test/bitexactness_tools.h"
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namespace webrtc {
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namespace {
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const int kNumFramesToProcess = 1000;
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void ProcessOneFrame(int sample_rate_hz,
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AudioBuffer* render_audio_buffer,
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AudioBuffer* capture_audio_buffer,
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GainControlImpl* gain_controller) {
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if (sample_rate_hz > AudioProcessing::kSampleRate16kHz) {
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render_audio_buffer->SplitIntoFrequencyBands();
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capture_audio_buffer->SplitIntoFrequencyBands();
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}
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gain_controller->ProcessRenderAudio(render_audio_buffer);
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gain_controller->AnalyzeCaptureAudio(capture_audio_buffer);
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gain_controller->ProcessCaptureAudio(capture_audio_buffer, false);
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if (sample_rate_hz > AudioProcessing::kSampleRate16kHz) {
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capture_audio_buffer->MergeFrequencyBands();
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}
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}
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void SetupComponent(int sample_rate_hz,
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GainControl::Mode mode,
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int target_level_dbfs,
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int stream_analog_level,
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int compression_gain_db,
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bool enable_limiter,
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int analog_level_min,
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int analog_level_max,
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GainControlImpl* gain_controller) {
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gain_controller->Initialize(1, sample_rate_hz);
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GainControl* gc = static_cast<GainControl*>(gain_controller);
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gc->Enable(true);
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gc->set_mode(mode);
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gc->set_stream_analog_level(stream_analog_level);
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gc->set_target_level_dbfs(target_level_dbfs);
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gc->set_compression_gain_db(compression_gain_db);
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gc->enable_limiter(enable_limiter);
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gc->set_analog_level_limits(analog_level_min, analog_level_max);
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}
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void RunBitExactnessTest(int sample_rate_hz,
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size_t num_channels,
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GainControl::Mode mode,
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int target_level_dbfs,
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int stream_analog_level,
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int compression_gain_db,
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bool enable_limiter,
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int analog_level_min,
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int analog_level_max,
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int achieved_stream_analog_level_reference,
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rtc::ArrayView<const float> output_reference) {
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rtc::CriticalSection crit_render;
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rtc::CriticalSection crit_capture;
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GainControlImpl gain_controller(&crit_render, &crit_capture);
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SetupComponent(sample_rate_hz, mode, target_level_dbfs, stream_analog_level,
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compression_gain_db, enable_limiter, analog_level_min,
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analog_level_max, &gain_controller);
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const int samples_per_channel = rtc::CheckedDivExact(sample_rate_hz, 100);
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const StreamConfig render_config(sample_rate_hz, num_channels, false);
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AudioBuffer render_buffer(
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render_config.num_frames(), render_config.num_channels(),
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render_config.num_frames(), 1, render_config.num_frames());
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test::InputAudioFile render_file(
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test::GetApmRenderTestVectorFileName(sample_rate_hz));
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std::vector<float> render_input(samples_per_channel * num_channels);
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const StreamConfig capture_config(sample_rate_hz, num_channels, false);
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AudioBuffer capture_buffer(
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capture_config.num_frames(), capture_config.num_channels(),
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capture_config.num_frames(), 1, capture_config.num_frames());
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test::InputAudioFile capture_file(
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test::GetApmCaptureTestVectorFileName(sample_rate_hz));
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std::vector<float> capture_input(samples_per_channel * num_channels);
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for (int frame_no = 0; frame_no < kNumFramesToProcess; ++frame_no) {
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ReadFloatSamplesFromStereoFile(samples_per_channel, num_channels,
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&render_file, render_input);
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ReadFloatSamplesFromStereoFile(samples_per_channel, num_channels,
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&capture_file, capture_input);
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test::CopyVectorToAudioBuffer(render_config, render_input, &render_buffer);
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test::CopyVectorToAudioBuffer(capture_config, capture_input,
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&capture_buffer);
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ProcessOneFrame(sample_rate_hz, &render_buffer, &capture_buffer,
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&gain_controller);
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}
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// Extract and verify the test results.
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std::vector<float> capture_output;
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test::ExtractVectorFromAudioBuffer(capture_config, &capture_buffer,
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&capture_output);
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EXPECT_EQ(achieved_stream_analog_level_reference,
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gain_controller.stream_analog_level());
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// Compare the output with the reference. Only the first values of the output
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// from last frame processed are compared in order not having to specify all
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// preceeding frames as testvectors. As the algorithm being tested has a
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// memory, testing only the last frame implicitly also tests the preceeding
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// frames.
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const float kTolerance = 1.0f / 32768.0f;
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EXPECT_TRUE(test::BitExactFrame(
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capture_config.num_frames(), capture_config.num_channels(),
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output_reference, capture_output, kTolerance));
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}
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} // namespace
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TEST(GainControlBitExactnessTest,
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Mono8kHz_AdaptiveAnalog_Tl10_SL50_CG5_Lim_AL0_100) {
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const int kStreamAnalogLevelReference = 50;
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const float kOutputReference[] = {-0.004578f, -0.003998f, -0.002991f};
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RunBitExactnessTest(8000, 1, GainControl::Mode::kAdaptiveAnalog, 10, 50, 5,
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true, 0, 100, kStreamAnalogLevelReference,
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kOutputReference);
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}
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TEST(GainControlBitExactnessTest,
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Mono16kHz_AdaptiveAnalog_Tl10_SL50_CG5_Lim_AL0_100) {
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const int kStreamAnalogLevelReference = 50;
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const float kOutputReference[] = {-0.004303f, -0.004150f, -0.004089f};
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RunBitExactnessTest(16000, 1, GainControl::Mode::kAdaptiveAnalog, 10, 50, 5,
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true, 0, 100, kStreamAnalogLevelReference,
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kOutputReference);
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}
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TEST(GainControlBitExactnessTest,
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Stereo16kHz_AdaptiveAnalog_Tl10_SL50_CG5_Lim_AL0_100) {
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const int kStreamAnalogLevelReference = 50;
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const float kOutputReference[] = {-0.010254f, -0.004761f, -0.009918f,
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-0.010254f, -0.004761f, -0.009918f};
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RunBitExactnessTest(16000, 2, GainControl::Mode::kAdaptiveAnalog, 10, 50, 5,
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true, 0, 100, kStreamAnalogLevelReference,
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kOutputReference);
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}
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TEST(GainControlBitExactnessTest,
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Mono32kHz_AdaptiveAnalog_Tl10_SL50_CG5_Lim_AL0_100) {
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const int kStreamAnalogLevelReference = 50;
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const float kOutputReference[] = {-0.005554f, -0.005066f, -0.004242f};
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RunBitExactnessTest(32000, 1, GainControl::Mode::kAdaptiveAnalog, 10, 50, 5,
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true, 0, 100, kStreamAnalogLevelReference,
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kOutputReference);
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}
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TEST(GainControlBitExactnessTest,
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Mono48kHz_AdaptiveAnalog_Tl10_SL50_CG5_Lim_AL0_100) {
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const int kStreamAnalogLevelReference = 50;
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const float kOutputReference[] = {-0.005554f, -0.005066f, -0.004242f};
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RunBitExactnessTest(32000, 1, GainControl::Mode::kAdaptiveAnalog, 10, 50, 5,
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true, 0, 100, kStreamAnalogLevelReference,
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kOutputReference);
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}
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TEST(GainControlBitExactnessTest,
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Mono8kHz_AdaptiveDigital_Tl10_SL50_CG5_Lim_AL0_100) {
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const int kStreamAnalogLevelReference = 50;
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const float kOutputReference[] = {-0.014221f, -0.012421f, -0.009308f};
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RunBitExactnessTest(8000, 1, GainControl::Mode::kAdaptiveDigital, 10, 50, 5,
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true, 0, 100, kStreamAnalogLevelReference,
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kOutputReference);
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}
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TEST(GainControlBitExactnessTest,
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Mono16kHz_AdaptiveDigital_Tl10_SL50_CG5_Lim_AL0_100) {
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const int kStreamAnalogLevelReference = 50;
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const float kOutputReference[] = {-0.014923f, -0.014404f, -0.014191f};
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RunBitExactnessTest(16000, 1, GainControl::Mode::kAdaptiveDigital, 10, 50, 5,
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true, 0, 100, kStreamAnalogLevelReference,
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kOutputReference);
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}
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TEST(GainControlBitExactnessTest,
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Stereo16kHz_AdaptiveDigital_Tl10_SL50_CG5_Lim_AL0_100) {
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const int kStreamAnalogLevelReference = 50;
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const float kOutputReference[] = {-0.009796f, -0.004547f, -0.009460f,
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-0.009796f, -0.004547f, -0.009460f};
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RunBitExactnessTest(16000, 2, GainControl::Mode::kAdaptiveDigital, 10, 50, 5,
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true, 0, 100, kStreamAnalogLevelReference,
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kOutputReference);
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}
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TEST(GainControlBitExactnessTest,
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Mono32kHz_AdaptiveDigital_Tl10_SL50_CG5_Lim_AL0_100) {
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const int kStreamAnalogLevelReference = 50;
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const float kOutputReference[] = {-0.019287f, -0.017578f, -0.014709f};
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RunBitExactnessTest(32000, 1, GainControl::Mode::kAdaptiveDigital, 10, 50, 5,
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true, 0, 100, kStreamAnalogLevelReference,
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kOutputReference);
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}
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TEST(GainControlBitExactnessTest,
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Mono48kHz_AdaptiveDigital_Tl10_SL50_CG5_Lim_AL0_100) {
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const int kStreamAnalogLevelReference = 50;
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const float kOutputReference[] = {-0.019287f, -0.017578f, -0.014709f};
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RunBitExactnessTest(32000, 1, GainControl::Mode::kAdaptiveDigital, 10, 50, 5,
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true, 0, 100, kStreamAnalogLevelReference,
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kOutputReference);
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}
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TEST(GainControlBitExactnessTest,
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Mono8kHz_FixedDigital_Tl10_SL50_CG5_Lim_AL0_100) {
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const int kStreamAnalogLevelReference = 50;
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const float kOutputReference[] = {-0.008209f, -0.007172f, -0.005371f};
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RunBitExactnessTest(8000, 1, GainControl::Mode::kFixedDigital, 10, 50, 5,
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true, 0, 100, kStreamAnalogLevelReference,
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kOutputReference);
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}
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TEST(GainControlBitExactnessTest,
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Mono16kHz_FixedDigital_Tl10_SL50_CG5_Lim_AL0_100) {
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const int kStreamAnalogLevelReference = 50;
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const float kOutputReference[] = {-0.007721f, -0.007446f, -0.007355f};
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RunBitExactnessTest(16000, 1, GainControl::Mode::kFixedDigital, 10, 50, 5,
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true, 0, 100, kStreamAnalogLevelReference,
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kOutputReference);
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}
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TEST(GainControlBitExactnessTest,
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Stereo16kHz_FixedDigital_Tl10_SL50_CG5_Lim_AL0_100) {
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const int kStreamAnalogLevelReference = 50;
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const float kOutputReference[] = {-0.018402f, -0.008545f, -0.017792f,
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-0.018402f, -0.008545f, -0.017792f};
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RunBitExactnessTest(16000, 2, GainControl::Mode::kFixedDigital, 10, 50, 5,
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true, 0, 100, kStreamAnalogLevelReference,
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kOutputReference);
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}
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TEST(GainControlBitExactnessTest,
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Mono32kHz_FixedDigital_Tl10_SL50_CG5_Lim_AL0_100) {
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const int kStreamAnalogLevelReference = 50;
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const float kOutputReference[] = {-0.009979f, -0.009064f, -0.007629f};
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RunBitExactnessTest(32000, 1, GainControl::Mode::kFixedDigital, 10, 50, 5,
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true, 0, 100, kStreamAnalogLevelReference,
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kOutputReference);
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}
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TEST(GainControlBitExactnessTest,
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Mono48kHz_FixedDigital_Tl10_SL50_CG5_Lim_AL0_100) {
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const int kStreamAnalogLevelReference = 50;
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const float kOutputReference[] = {-0.009979f, -0.009064f, -0.007629f};
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RunBitExactnessTest(32000, 1, GainControl::Mode::kFixedDigital, 10, 50, 5,
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true, 0, 100, kStreamAnalogLevelReference,
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kOutputReference);
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}
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TEST(GainControlBitExactnessTest,
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Mono16kHz_AdaptiveAnalog_Tl10_SL10_CG5_Lim_AL0_100) {
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const int kStreamAnalogLevelReference = 12;
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const float kOutputReference[] = {-0.004303f, -0.004150f, -0.004089f};
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RunBitExactnessTest(16000, 1, GainControl::Mode::kAdaptiveAnalog, 10, 10, 5,
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true, 0, 100, kStreamAnalogLevelReference,
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kOutputReference);
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}
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TEST(GainControlBitExactnessTest,
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Mono16kHz_AdaptiveAnalog_Tl10_SL100_CG5_Lim_AL70_80) {
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const int kStreamAnalogLevelReference = 100;
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const float kOutputReference[] = {-0.004303f, -0.004150f, -0.004089f};
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RunBitExactnessTest(16000, 1, GainControl::Mode::kAdaptiveAnalog, 10, 100, 5,
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true, 70, 80, kStreamAnalogLevelReference,
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kOutputReference);
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}
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TEST(GainControlBitExactnessTest,
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Mono16kHz_AdaptiveDigital_Tl10_SL100_CG5_NoLim_AL0_100) {
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const int kStreamAnalogLevelReference = 100;
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const float kOutputReference[] = {-0.014923f, -0.014404f, -0.014191f};
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RunBitExactnessTest(16000, 1, GainControl::Mode::kAdaptiveDigital, 10, 100, 5,
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false, 0, 100, kStreamAnalogLevelReference,
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kOutputReference);
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}
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TEST(GainControlBitExactnessTest,
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Mono16kHz_AdaptiveDigital_Tl40_SL100_CG5_Lim_AL0_100) {
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const int kStreamAnalogLevelReference = 100;
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const float kOutputReference[] = {-0.020721f, -0.019989f, -0.019714f};
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RunBitExactnessTest(16000, 1, GainControl::Mode::kAdaptiveDigital, 40, 100, 5,
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true, 0, 100, kStreamAnalogLevelReference,
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kOutputReference);
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}
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TEST(GainControlBitExactnessTest,
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Mono16kHz_AdaptiveDigital_Tl10_SL100_CG30_Lim_AL0_100) {
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const int kStreamAnalogLevelReference = 100;
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const float kOutputReference[] = {-0.020416f, -0.019714f, -0.019409f};
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RunBitExactnessTest(16000, 1, GainControl::Mode::kAdaptiveDigital, 10, 100,
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30, true, 0, 100, kStreamAnalogLevelReference,
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kOutputReference);
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}
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} // namespace webrtc
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@ -444,6 +444,7 @@
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'audio_processing/audio_processing_impl_locking_unittest.cc',
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'audio_processing/audio_processing_impl_unittest.cc',
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'audio_processing/echo_control_mobile_unittest.cc',
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'audio_processing/gain_control_unittest.cc',
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'audio_processing/high_pass_filter_bitexactness_unittest.cc',
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'audio_processing/level_estimator_bitexactness_unittest.cc',
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'audio_processing/noise_suppression_bitexactness_unittest.cc',
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