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Increasing the speed of the initial alignment in AEC3

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This CL increases the speech of the initial alignment in AEC3 by
loosening the requirements on the accuracy of the initial estimates.

Bug: webrtc:8784, chromium:804270
Change-Id: I86e2d97830843524090a1cf877965739f66dc058
Reviewed-on: https://webrtc-review.googlesource.com/40660
Commit-Queue: Per Åhgren <peah@webrtc.org>
Reviewed-by: Gustaf Ullberg <gustaf@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#21728}
This commit is contained in:
Per Åhgren
2018-01-22 20:24:06 +01:00
committed by Commit Bot
parent f11772afd6
commit 0eef9c0c61
6 changed files with 23 additions and 52 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
modules/audio_processing/aec3/render_delay_controller.cc
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@ -44,7 +44,6 @@ class RenderDelayControllerImpl final : public RenderDelayController {
const int hysteresis_limit_2_blocks_;
rtc::Optional<size_t> delay_;
EchoPathDelayEstimator delay_estimator_;
size_t align_call_counter_ = 0;
std::vector<float> delay_buf_;
int delay_buf_index_ = 0;
RenderDelayControllerMetrics metrics_;
@ -106,7 +105,6 @@ RenderDelayControllerImpl::~RenderDelayControllerImpl() = default;
void RenderDelayControllerImpl::Reset() {
delay_ = rtc::nullopt;
align_call_counter_ = 0;
std::fill(delay_buf_.begin(), delay_buf_.end(), 0.f);
delay_estimator_.Reset();
}
@ -124,7 +122,6 @@ rtc::Optional<size_t> RenderDelayControllerImpl::GetDelay(
const DownsampledRenderBuffer& render_buffer,
rtc::ArrayView<const float> capture) {
RTC_DCHECK_EQ(kBlockSize, capture.size());
++align_call_counter_;
// Estimate the delay with a delayed capture.
RTC_DCHECK_LT(delay_buf_index_ + kBlockSize - 1, delay_buf_.size());
@ -139,11 +136,9 @@ rtc::Optional<size_t> RenderDelayControllerImpl::GetDelay(
if (delay_samples) {
// Compute and set new render delay buffer delay.
if (align_call_counter_ > kNumBlocksPerSecond) {
delay_ = ComputeNewBufferDelay(
delay_, delay_headroom_blocks_, hysteresis_limit_1_blocks_,
hysteresis_limit_2_blocks_, static_cast<int>(*delay_samples));
}
metrics_.Update(static_cast<int>(*delay_samples), delay_ ? *delay_ : 0);
} else {