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/*
* Copyright (c) 2018 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/echo_control_mobile_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 {
// TODO(peah): Increase the number of frames to proces when the issue of
// non repeatable test results have been found.
const int kNumFramesToProcess = 200;
void SetupComponent(int sample_rate_hz,
EchoControlMobileImpl::RoutingMode routing_mode,
bool comfort_noise_enabled,
EchoControlMobileImpl* echo_control_mobile) {
echo_control_mobile->Initialize(
sample_rate_hz > 16000 ? 16000 : sample_rate_hz, 1, 1);
echo_control_mobile->set_routing_mode(routing_mode);
echo_control_mobile->enable_comfort_noise(comfort_noise_enabled);
}
void ProcessOneFrame(int sample_rate_hz,
int stream_delay_ms,
AudioBuffer* render_audio_buffer,
AudioBuffer* capture_audio_buffer,
EchoControlMobileImpl* echo_control_mobile) {
if (sample_rate_hz > AudioProcessing::kSampleRate16kHz) {
render_audio_buffer->SplitIntoFrequencyBands();
capture_audio_buffer->SplitIntoFrequencyBands();
}
std::vector<int16_t> render_audio;
EchoControlMobileImpl::PackRenderAudioBuffer(
render_audio_buffer, 1, render_audio_buffer->num_channels(),
&render_audio);
echo_control_mobile->ProcessRenderAudio(render_audio);
echo_control_mobile->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,
EchoControlMobileImpl::RoutingMode routing_mode,
bool comfort_noise_enabled,
const rtc::ArrayView<const float>& output_reference) {
EchoControlMobileImpl echo_control_mobile;
SetupComponent(sample_rate_hz, routing_mode, comfort_noise_enabled,
&echo_control_mobile);
const int samples_per_channel = rtc::CheckedDivExact(sample_rate_hz, 100);
const StreamConfig render_config(sample_rate_hz, num_channels);
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);
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, stream_delay_ms, &render_buffer,
&capture_buffer, &echo_control_mobile);
}
// Extract and verify the test results.
std::vector<float> capture_output;
test::ExtractVectorFromAudioBuffer(capture_config, &capture_buffer,
&capture_output);
// 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): Renable once the integer overflow issue in aecm_core.c:932:69
// has been solved.
TEST(EchoControlMobileBitExactnessTest,
DISABLED_Mono8kHz_LoudSpeakerPhone_CngOn_StreamDelay0) {
const float kOutputReference[] = {0.005280f, 0.002380f, -0.000427f};
RunBitexactnessTest(8000, 1, 0,
EchoControlMobileImpl::RoutingMode::kLoudSpeakerphone,
true, kOutputReference);
}
TEST(EchoControlMobileBitExactnessTest,
DISABLED_Mono16kHz_LoudSpeakerPhone_CngOn_StreamDelay0) {
const float kOutputReference[] = {0.003601f, 0.002991f, 0.001923f};
RunBitexactnessTest(16000, 1, 0,
EchoControlMobileImpl::RoutingMode::kLoudSpeakerphone,
true, kOutputReference);
}
TEST(EchoControlMobileBitExactnessTest,
DISABLED_Mono32kHz_LoudSpeakerPhone_CngOn_StreamDelay0) {
const float kOutputReference[] = {0.002258f, 0.002899f, 0.003906f};
RunBitexactnessTest(32000, 1, 0,
EchoControlMobileImpl::RoutingMode::kLoudSpeakerphone,
true, kOutputReference);
}
TEST(EchoControlMobileBitExactnessTest,
DISABLED_Mono48kHz_LoudSpeakerPhone_CngOn_StreamDelay0) {
const float kOutputReference[] = {-0.000046f, 0.000041f, 0.000249f};
RunBitexactnessTest(48000, 1, 0,
EchoControlMobileImpl::RoutingMode::kLoudSpeakerphone,
true, kOutputReference);
}
TEST(EchoControlMobileBitExactnessTest,
DISABLED_Mono16kHz_LoudSpeakerPhone_CngOff_StreamDelay0) {
const float kOutputReference[] = {0.000000f, 0.000000f, 0.000000f};
RunBitexactnessTest(16000, 1, 0,
EchoControlMobileImpl::RoutingMode::kLoudSpeakerphone,
false, kOutputReference);
}
// TODO(peah): Renable once the integer overflow issue in aecm_core.c:932:69
// has been solved.
TEST(EchoControlMobileBitExactnessTest,
DISABLED_Mono16kHz_LoudSpeakerPhone_CngOn_StreamDelay5) {
const float kOutputReference[] = {0.003693f, 0.002930f, 0.001801f};
RunBitexactnessTest(16000, 1, 5,
EchoControlMobileImpl::RoutingMode::kLoudSpeakerphone,
true, kOutputReference);
}
TEST(EchoControlMobileBitExactnessTest,
Mono16kHz_LoudSpeakerPhone_CngOn_StreamDelay10) {
const float kOutputReference[] = {-0.002380f, -0.002533f, -0.002563f};
RunBitexactnessTest(16000, 1, 10,
EchoControlMobileImpl::RoutingMode::kLoudSpeakerphone,
true, kOutputReference);
}
TEST(EchoControlMobileBitExactnessTest,
DISABLED_Mono16kHz_QuietEarpieceOrHeadset_CngOn_StreamDelay0) {
const float kOutputReference[] = {0.000397f, 0.000000f, -0.000305f};
RunBitexactnessTest(
16000, 1, 0, EchoControlMobileImpl::RoutingMode::kQuietEarpieceOrHeadset,
true, kOutputReference);
}
TEST(EchoControlMobileBitExactnessTest,
DISABLED_Mono16kHz_Earpiece_CngOn_StreamDelay0) {
const float kOutputReference[] = {0.002167f, 0.001617f, 0.001038f};
RunBitexactnessTest(16000, 1, 0,
EchoControlMobileImpl::RoutingMode::kEarpiece, true,
kOutputReference);
}
TEST(EchoControlMobileBitExactnessTest,
DISABLED_Mono16kHz_LoudEarpiece_CngOn_StreamDelay0) {
const float kOutputReference[] = {0.003540f, 0.002899f, 0.001862f};
RunBitexactnessTest(16000, 1, 0,
EchoControlMobileImpl::RoutingMode::kLoudEarpiece, true,
kOutputReference);
}
TEST(EchoControlMobileBitExactnessTest,
DISABLED_Mono16kHz_SpeakerPhone_CngOn_StreamDelay0) {
const float kOutputReference[] = {0.003632f, 0.003052f, 0.001984f};
RunBitexactnessTest(16000, 1, 0,
EchoControlMobileImpl::RoutingMode::kSpeakerphone, true,
kOutputReference);
}
} // namespace webrtc