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Use low cut filtering whenever NS or AEC are enabled

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These submodules implicitly rely on low cut filtering being enabled.

This CL clarifies a distinction:
High pass filtering is a feature that users can enable, according to the WebRTC standard.
Low cut filtering is a processing effect that is applied when any of the following is active:
- high pass filter
- noise suppression
- builtin echo cancellation

Bug: webrtc:9535
Change-Id: I9474276fb11354ea3b01e65a0699f6c29263770b
Reviewed-on: https://webrtc-review.googlesource.com/102600
Reviewed-by: Per Åhgren <peah@webrtc.org>
Commit-Queue: Sam Zackrisson <saza@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24892}
This commit is contained in:
Sam Zackrisson
2018-09-28 14:15:09 +02:00
committed by Commit Bot
parent 7e4ee6eb86
commit cb1b55612c
3 changed files with 15 additions and 30 deletions
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25
modules/audio_processing/audio_processing_unittest.cc
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@ -1410,33 +1410,12 @@ TEST_F(ApmTest, SplittingFilter) {
EXPECT_EQ(apm_->kNoError, apm_->level_estimator()->Enable(false));
EXPECT_EQ(apm_->kNoError, apm_->voice_detection()->Enable(false));
// 5. Not using super-wb.
frame_->samples_per_channel_ = 160;
frame_->num_channels_ = 2;
frame_->sample_rate_hz_ = 16000;
// Enable AEC, which would require the filter in super-wb. We rely on the
// first few frames of data being unaffected by the AEC.
// TODO(andrew): This test, and the one below, rely rather tenuously on the
// behavior of the AEC. Think of something more robust.
// Check the test is valid. We should have distortion from the filter
// when AEC is enabled (which won't affect the audio).
AudioProcessing::Config apm_config = apm_->GetConfig();
apm_config.echo_canceller.enabled = true;
apm_config.echo_canceller.mobile_mode = false;
apm_->ApplyConfig(apm_config);
// Make sure we have extended filter enabled. This makes sure nothing is
// touched until we have a farend frame.
Config config;
config.Set<ExtendedFilter>(new ExtendedFilter(true));
apm_->SetExtraOptions(config);
SetFrameTo(frame_, 1000);
frame_copy.CopyFrom(*frame_);
EXPECT_EQ(apm_->kNoError, apm_->set_stream_delay_ms(0));
EXPECT_EQ(apm_->kNoError, apm_->ProcessStream(frame_));
EXPECT_EQ(apm_->kNoError, apm_->set_stream_delay_ms(0));
EXPECT_EQ(apm_->kNoError, apm_->ProcessStream(frame_));
EXPECT_TRUE(FrameDataAreEqual(*frame_, frame_copy));
// Check the test is valid. We should have distortion from the filter
// when AEC is enabled (which won't affect the audio).
frame_->samples_per_channel_ = 320;
frame_->num_channels_ = 2;
frame_->sample_rate_hz_ = 32000;