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Change unittests to use AEC3 instead of AEC2

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This CL changes the APM unittests to use AEC3 instead of
AEC2.


Bug: webrtc:8671
Change-Id: I80f88dbafb7c31696abd8b7efb5a187a9fb30d1c
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/129420
Reviewed-by: Gustaf Ullberg <gustaf@webrtc.org>
Commit-Queue: Per Åhgren <peah@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27607}
This commit is contained in:
Per Åhgren 2019-04-12 22:02:26 +02:00 committed by Commit Bot
parent 30f36af455
commit 8607f843a7
2 changed files with 7 additions and 253 deletions
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258
modules/audio_processing/audio_processing_unittest.cc
View File

@ -110,10 +110,6 @@ size_t TotalChannelsFromLayout(AudioProcessing::ChannelLayout layout) {
return 0;
}
int TruncateToMultipleOf10(int value) {
return (value / 10) * 10;
}
void MixStereoToMono(const float* stereo, float* mono,
size_t samples_per_channel) {
for (size_t i = 0; i < samples_per_channel; ++i)
@ -188,10 +184,7 @@ void EnableAllAPComponents(AudioProcessing* ap) {
apm_config.gain_controller1.mode =
AudioProcessing::Config::GainController1::kAdaptiveDigital;
#elif defined(WEBRTC_AUDIOPROC_FLOAT_PROFILE)
// TODO(peah): Update tests to instead use AEC3.
apm_config.echo_canceller.use_legacy_aec = true;
apm_config.echo_canceller.mobile_mode = false;
apm_config.echo_canceller.legacy_moderate_suppression_level = true;
apm_config.gain_controller1.enabled = true;
apm_config.gain_controller1.mode =
@ -421,15 +414,8 @@ ApmTest::ApmTest()
ref_filename_(test::ResourcePath("audio_processing/output_data_fixed",
"pb")),
#elif defined(WEBRTC_AUDIOPROC_FLOAT_PROFILE)
#if defined(WEBRTC_MAC)
// A different file for Mac is needed because on this platform the AEC
// constant |kFixedDelayMs| value is 20 and not 50 as it is on the rest.
ref_filename_(test::ResourcePath("audio_processing/output_data_mac",
"pb")),
#else
ref_filename_(test::ResourcePath("audio_processing/output_data_float",
"pb")),
#endif
#endif
frame_(NULL),
revframe_(NULL),
@ -870,83 +856,6 @@ TEST_F(ApmTest, SampleRatesInt) {
}
}
TEST_F(ApmTest, DISABLED_EchoCancellationReportsCorrectDelays) {
// TODO(bjornv): Fix this test to work with DA-AEC.
// Enable AEC only.
AudioProcessing::Config apm_config = apm_->GetConfig();
apm_config.echo_canceller.enabled = true;
// TODO(peah): Update tests to instead use AEC3.
apm_config.echo_canceller.use_legacy_aec = true;
apm_config.echo_canceller.mobile_mode = false;
apm_->ApplyConfig(apm_config);
Config config;
config.Set<DelayAgnostic>(new DelayAgnostic(false));
apm_->SetExtraOptions(config);
// Internally in the AEC the amount of lookahead the delay estimation can
// handle is 15 blocks and the maximum delay is set to 60 blocks.
const int kLookaheadBlocks = 15;
const int kMaxDelayBlocks = 60;
// The AEC has a startup time before it actually starts to process. This
// procedure can flush the internal far-end buffer, which of course affects
// the delay estimation. Therefore, we set a system_delay high enough to
// avoid that. The smallest system_delay you can report without flushing the
// buffer is 66 ms in 8 kHz.
//
// It is known that for 16 kHz (and 32 kHz) sampling frequency there is an
// additional stuffing of 8 ms on the fly, but it seems to have no impact on
// delay estimation. This should be noted though. In case of test failure,
// this could be the cause.
const int kSystemDelayMs = 66;
// Test a couple of corner cases and verify that the estimated delay is
// within a valid region (set to +-1.5 blocks). Note that these cases are
// sampling frequency dependent.
for (size_t i = 0; i < arraysize(kProcessSampleRates); i++) {
Init(kProcessSampleRates[i],
kProcessSampleRates[i],
kProcessSampleRates[i],
2,
2,
2,
false);
// Sampling frequency dependent variables.
const int num_ms_per_block =
std::max(4, static_cast<int>(640 / frame_->samples_per_channel_));
const int delay_min_ms = -kLookaheadBlocks * num_ms_per_block;
const int delay_max_ms = (kMaxDelayBlocks - 1) * num_ms_per_block;
// 1) Verify correct delay estimate at lookahead boundary.
int delay_ms = TruncateToMultipleOf10(kSystemDelayMs + delay_min_ms);
ProcessDelayVerificationTest(delay_ms, kSystemDelayMs, delay_min_ms,
delay_max_ms);
// 2) A delay less than maximum lookahead should give an delay estimate at
// the boundary (= -kLookaheadBlocks * num_ms_per_block).
delay_ms -= 20;
ProcessDelayVerificationTest(delay_ms, kSystemDelayMs, delay_min_ms,
delay_max_ms);
// 3) Three values around zero delay. Note that we need to compensate for
// the fake system_delay.
delay_ms = TruncateToMultipleOf10(kSystemDelayMs - 10);
ProcessDelayVerificationTest(delay_ms, kSystemDelayMs, delay_min_ms,
delay_max_ms);
delay_ms = TruncateToMultipleOf10(kSystemDelayMs);
ProcessDelayVerificationTest(delay_ms, kSystemDelayMs, delay_min_ms,
delay_max_ms);
delay_ms = TruncateToMultipleOf10(kSystemDelayMs + 10);
ProcessDelayVerificationTest(delay_ms, kSystemDelayMs, delay_min_ms,
delay_max_ms);
// 4) Verify correct delay estimate at maximum delay boundary.
delay_ms = TruncateToMultipleOf10(kSystemDelayMs + delay_max_ms);
ProcessDelayVerificationTest(delay_ms, kSystemDelayMs, delay_min_ms,
delay_max_ms);
// 5) A delay above the maximum delay should give an estimate at the
// boundary (= (kMaxDelayBlocks - 1) * num_ms_per_block).
delay_ms += 20;
ProcessDelayVerificationTest(delay_ms, kSystemDelayMs, delay_min_ms,
delay_max_ms);
}
}
TEST_F(ApmTest, GainControl) {
// Testing gain modes
EXPECT_EQ(apm_->kNoError,
@ -1452,8 +1361,6 @@ TEST_F(ApmTest, SplittingFilter) {
// Check the test is valid. We should have distortion from the filter
// when AEC is enabled (which won't affect the audio).
apm_config.echo_canceller.enabled = true;
// TODO(peah): Update tests to instead use AEC3.
apm_config.echo_canceller.use_legacy_aec = true;
apm_config.echo_canceller.mobile_mode = false;
apm_->ApplyConfig(apm_config);
frame_->samples_per_channel_ = 320;
@ -1703,114 +1610,6 @@ TEST_F(ApmTest, DebugDumpFromFileHandle) {
#endif // WEBRTC_AUDIOPROC_DEBUG_DUMP
}
TEST_F(ApmTest, FloatAndIntInterfacesGiveSimilarResults) {
audioproc::OutputData ref_data;
OpenFileAndReadMessage(ref_filename_, &ref_data);
Config config;
config.Set<ExperimentalAgc>(new ExperimentalAgc(false));
std::unique_ptr<AudioProcessing> fapm(
AudioProcessingBuilder().Create(config));
EnableAllComponents();
EnableAllAPComponents(fapm.get());
for (int i = 0; i < ref_data.test_size(); i++) {
printf("Running test %d of %d...\n", i + 1, ref_data.test_size());
audioproc::Test* test = ref_data.mutable_test(i);
// TODO(ajm): Restore downmixing test cases.
if (test->num_input_channels() != test->num_output_channels())
continue;
const size_t num_render_channels =
static_cast<size_t>(test->num_reverse_channels());
const size_t num_input_channels =
static_cast<size_t>(test->num_input_channels());
const size_t num_output_channels =
static_cast<size_t>(test->num_output_channels());
const size_t samples_per_channel = static_cast<size_t>(
test->sample_rate() * AudioProcessing::kChunkSizeMs / 1000);
Init(test->sample_rate(), test->sample_rate(), test->sample_rate(),
num_input_channels, num_output_channels, num_render_channels, true);
Init(fapm.get());
ChannelBuffer<int16_t> output_cb(samples_per_channel, num_input_channels);
ChannelBuffer<int16_t> output_int16(samples_per_channel,
num_input_channels);
int analog_level = 127;
size_t num_bad_chunks = 0;
while (ReadFrame(far_file_, revframe_, revfloat_cb_.get()) &&
ReadFrame(near_file_, frame_, float_cb_.get())) {
frame_->vad_activity_ = AudioFrame::kVadUnknown;
EXPECT_NOERR(apm_->ProcessReverseStream(revframe_));
EXPECT_NOERR(fapm->AnalyzeReverseStream(
revfloat_cb_->channels(),
samples_per_channel,
test->sample_rate(),
LayoutFromChannels(num_render_channels)));
EXPECT_NOERR(apm_->set_stream_delay_ms(0));
EXPECT_NOERR(fapm->set_stream_delay_ms(0));
EXPECT_NOERR(apm_->gain_control()->set_stream_analog_level(analog_level));
EXPECT_NOERR(fapm->gain_control()->set_stream_analog_level(analog_level));
EXPECT_NOERR(apm_->ProcessStream(frame_));
Deinterleave(frame_->data(), samples_per_channel, num_output_channels,
output_int16.channels());
EXPECT_NOERR(fapm->ProcessStream(
float_cb_->channels(),
samples_per_channel,
test->sample_rate(),
LayoutFromChannels(num_input_channels),
test->sample_rate(),
LayoutFromChannels(num_output_channels),
float_cb_->channels()));
for (size_t j = 0; j < num_output_channels; ++j) {
FloatToS16(float_cb_->channels()[j],
samples_per_channel,
output_cb.channels()[j]);
float variance = 0;
float snr = ComputeSNR(output_int16.channels()[j],
output_cb.channels()[j],
samples_per_channel, &variance);
const float kVarianceThreshold = 20;
const float kSNRThreshold = 20;
// Skip frames with low energy.
if (std::sqrt(variance) > kVarianceThreshold && snr < kSNRThreshold) {
++num_bad_chunks;
}
}
analog_level = fapm->gain_control()->stream_analog_level();
EXPECT_EQ(apm_->gain_control()->stream_analog_level(),
fapm->gain_control()->stream_analog_level());
EXPECT_NEAR(apm_->noise_suppression()->speech_probability(),
fapm->noise_suppression()->speech_probability(),
0.01);
// Reset in case of downmixing.
frame_->num_channels_ = static_cast<size_t>(test->num_input_channels());
}
#if defined(WEBRTC_AUDIOPROC_FLOAT_PROFILE)
const size_t kMaxNumBadChunks = 0;
#elif defined(WEBRTC_AUDIOPROC_FIXED_PROFILE)
// There are a few chunks in the fixed-point profile that give low SNR.
// Listening confirmed the difference is acceptable.
const size_t kMaxNumBadChunks = 60;
#endif
EXPECT_LE(num_bad_chunks, kMaxNumBadChunks);
rewind(far_file_);
rewind(near_file_);
}
}
// TODO(andrew): Add a test to process a few frames with different combinations
// of enabled components.
@ -1938,18 +1737,11 @@ TEST_F(ApmTest, Process) {
const float echo_return_loss = stats.echo_return_loss.value_or(-1.0f);
const float echo_return_loss_enhancement =
stats.echo_return_loss_enhancement.value_or(-1.0f);
const float divergent_filter_fraction =
stats.divergent_filter_fraction.value_or(-1.0f);
const float residual_echo_likelihood =
stats.residual_echo_likelihood.value_or(-1.0f);
const float residual_echo_likelihood_recent_max =
stats.residual_echo_likelihood_recent_max.value_or(-1.0f);
// Delay metrics.
const int32_t delay_median_ms = stats.delay_median_ms.value_or(-1.0);
const int32_t delay_standard_deviation_ms =
stats.delay_standard_deviation_ms.value_or(-1.0);
if (!write_ref_data) {
const audioproc::Test::EchoMetrics& reference =
test->echo_metrics(stats_index);
@ -1957,34 +1749,20 @@ TEST_F(ApmTest, Process) {
EXPECT_NEAR(echo_return_loss, reference.echo_return_loss(), kEpsilon);
EXPECT_NEAR(echo_return_loss_enhancement,
reference.echo_return_loss_enhancement(), kEpsilon);
EXPECT_NEAR(divergent_filter_fraction,
reference.divergent_filter_fraction(), kEpsilon);
EXPECT_NEAR(residual_echo_likelihood,
reference.residual_echo_likelihood(), kEpsilon);
EXPECT_NEAR(residual_echo_likelihood_recent_max,
reference.residual_echo_likelihood_recent_max(),
kEpsilon);
const audioproc::Test::DelayMetrics& reference_delay =
test->delay_metrics(stats_index);
EXPECT_EQ(reference_delay.median(), delay_median_ms);
EXPECT_EQ(reference_delay.std(), delay_standard_deviation_ms);
++stats_index;
} else {
audioproc::Test::EchoMetrics* message_echo = test->add_echo_metrics();
message_echo->set_echo_return_loss(echo_return_loss);
message_echo->set_echo_return_loss_enhancement(
echo_return_loss_enhancement);
message_echo->set_divergent_filter_fraction(
divergent_filter_fraction);
message_echo->set_residual_echo_likelihood(residual_echo_likelihood);
message_echo->set_residual_echo_likelihood_recent_max(
residual_echo_likelihood_recent_max);
audioproc::Test::DelayMetrics* message_delay =
test->add_delay_metrics();
message_delay->set_median(delay_median_ms);
message_delay->set_std(delay_standard_deviation_ms);
}
}
#endif // defined(WEBRTC_AUDIOPROC_FLOAT_PROFILE).
@ -2689,12 +2467,8 @@ TEST(ApmConfiguration, EchoControlInjection) {
apm->ProcessStream(&audio);
}
std::unique_ptr<AudioProcessing> CreateApm(bool use_AEC2) {
std::unique_ptr<AudioProcessing> CreateApm(bool mobile_aec) {
Config old_config;
if (use_AEC2) {
old_config.Set<ExtendedFilter>(new ExtendedFilter(true));
old_config.Set<DelayAgnostic>(new DelayAgnostic(true));
}
std::unique_ptr<AudioProcessing> apm(
AudioProcessingBuilder().Create(old_config));
if (!apm) {
@ -2709,14 +2483,12 @@ std::unique_ptr<AudioProcessing> CreateApm(bool use_AEC2) {
}
// Disable all components except for an AEC and the residual echo detector.
// TODO(peah): Update this to also work on AEC3.
AudioProcessing::Config apm_config;
apm_config.residual_echo_detector.enabled = true;
apm_config.high_pass_filter.enabled = false;
apm_config.gain_controller2.enabled = false;
apm_config.echo_canceller.enabled = true;
apm_config.echo_canceller.mobile_mode = !use_AEC2;
apm_config.echo_canceller.use_legacy_aec = use_AEC2;
apm_config.echo_canceller.mobile_mode = mobile_aec;
apm->ApplyConfig(apm_config);
EXPECT_EQ(apm->gain_control()->Enable(false), 0);
EXPECT_EQ(apm->level_estimator()->Enable(false), 0);
@ -2731,14 +2503,12 @@ std::unique_ptr<AudioProcessing> CreateApm(bool use_AEC2) {
#define MAYBE_ApmStatistics ApmStatistics
#endif
TEST(MAYBE_ApmStatistics, AEC2EnabledTest) {
// Set up APM with AEC2 and process some audio.
std::unique_ptr<AudioProcessing> apm = CreateApm(true);
TEST(MAYBE_ApmStatistics, AECEnabledTest) {
// Set up APM with AEC3 and process some audio.
std::unique_ptr<AudioProcessing> apm = CreateApm(false);
ASSERT_TRUE(apm);
AudioProcessing::Config apm_config;
apm_config.echo_canceller.enabled = true;
// TODO(peah): Update tests to instead use AEC3.
apm_config.echo_canceller.use_legacy_aec = true;
apm->ApplyConfig(apm_config);
// Set up an audioframe.
@ -2772,13 +2542,6 @@ TEST(MAYBE_ApmStatistics, AEC2EnabledTest) {
EXPECT_NE(*stats.echo_return_loss, -100.0);
ASSERT_TRUE(stats.echo_return_loss_enhancement);
EXPECT_NE(*stats.echo_return_loss_enhancement, -100.0);
ASSERT_TRUE(stats.divergent_filter_fraction);
EXPECT_NE(*stats.divergent_filter_fraction, -1.0);
ASSERT_TRUE(stats.delay_standard_deviation_ms);
EXPECT_GE(*stats.delay_standard_deviation_ms, 0);
// We don't check stats.delay_median_ms since it takes too long to settle to a
// value. At least 20 seconds of data need to be processed before it will get
// a value, which would make this test take too much time.
// If there are no receive streams, we expect the stats not to be set. The
// 'false' argument signals to APM that no receive streams are currently
@ -2790,14 +2553,11 @@ TEST(MAYBE_ApmStatistics, AEC2EnabledTest) {
EXPECT_FALSE(stats.residual_echo_likelihood_recent_max);
EXPECT_FALSE(stats.echo_return_loss);
EXPECT_FALSE(stats.echo_return_loss_enhancement);
EXPECT_FALSE(stats.divergent_filter_fraction);
EXPECT_FALSE(stats.delay_median_ms);
EXPECT_FALSE(stats.delay_standard_deviation_ms);
}
TEST(MAYBE_ApmStatistics, AECMEnabledTest) {
// Set up APM with AECM and process some audio.
std::unique_ptr<AudioProcessing> apm = CreateApm(false);
std::unique_ptr<AudioProcessing> apm = CreateApm(true);
ASSERT_TRUE(apm);
// Set up an audioframe.
@ -2834,9 +2594,6 @@ TEST(MAYBE_ApmStatistics, AECMEnabledTest) {
}
EXPECT_FALSE(stats.echo_return_loss);
EXPECT_FALSE(stats.echo_return_loss_enhancement);
EXPECT_FALSE(stats.divergent_filter_fraction);
EXPECT_FALSE(stats.delay_median_ms);
EXPECT_FALSE(stats.delay_standard_deviation_ms);
// If there are no receive streams, we expect the stats not to be set.
stats = apm->GetStatistics(false);
@ -2844,9 +2601,6 @@ TEST(MAYBE_ApmStatistics, AECMEnabledTest) {
EXPECT_FALSE(stats.residual_echo_likelihood_recent_max);
EXPECT_FALSE(stats.echo_return_loss);
EXPECT_FALSE(stats.echo_return_loss_enhancement);
EXPECT_FALSE(stats.divergent_filter_fraction);
EXPECT_FALSE(stats.delay_median_ms);
EXPECT_FALSE(stats.delay_standard_deviation_ms);
}
TEST(ApmStatistics, ReportOutputRmsDbfs) {

2
resources/audio_processing/output_data_float.pb.sha1
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@ -1 +1 @@
f3f7efa512900b06a30af8e3c92aa7863fbc96f8
169276fe22bbeb1c06e0ed1a9df8149c5dbf8f80