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Optimize the filter analyzer.

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Bug: None
Change-Id: I03e4e66295029df0f54dee83acbb5b5266d36645
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/247184
Reviewed-by: Per Åhgren <peah@webrtc.org>
Commit-Queue: Christian Schuldt <cschuldt@google.com>
Cr-Commit-Position: refs/heads/main@{#35717}
This commit is contained in:
cschuldt 2022-01-17 15:38:28 +01:00 committed by WebRTC LUCI CQ
parent d62de66eff
commit 9609a825eb
1 changed files with 15 additions and 6 deletions
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21
modules/audio_processing/aec3/filter_analyzer.cc
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@ -170,11 +170,16 @@ void FilterAnalyzer::PreProcessFilters(
std::fill(h_highpass_[ch].begin() + region_.start_sample_,
h_highpass_[ch].begin() + region_.end_sample_ + 1, 0.f);
float* h_highpass_ch = h_highpass_[ch].data();
const float* filters_time_domain_ch = filters_time_domain[ch].data();
const size_t region_end = region_.end_sample_;
for (size_t k = std::max(h.size() - 1, region_.start_sample_);
k <= region_.end_sample_; ++k) {
k <= region_end; ++k) {
float tmp = h_highpass_ch[k];
for (size_t j = 0; j < h.size(); ++j) {
h_highpass_[ch][k] += filters_time_domain[ch][k - j] * h[j];
tmp += filters_time_domain_ch[k - j] * h[j];
}
h_highpass_ch[k] = tmp;
}
}
}
@ -230,19 +235,23 @@ bool FilterAnalyzer::ConsistentFilterDetector::Detect(
peak_index > filter_to_analyze.size() - 129 ? 0 : peak_index + 128;
}
float filter_floor_accum = filter_floor_accum_;
float filter_secondary_peak = filter_secondary_peak_;
for (size_t k = region.start_sample_;
k < std::min(region.end_sample_ + 1, filter_floor_low_limit_); ++k) {
float abs_h = fabsf(filter_to_analyze[k]);
filter_floor_accum_ += abs_h;
filter_secondary_peak_ = std::max(filter_secondary_peak_, abs_h);
filter_floor_accum += abs_h;
filter_secondary_peak = std::max(filter_secondary_peak, abs_h);
}
for (size_t k = std::max(filter_floor_high_limit_, region.start_sample_);
k <= region.end_sample_; ++k) {
float abs_h = fabsf(filter_to_analyze[k]);
filter_floor_accum_ += abs_h;
filter_secondary_peak_ = std::max(filter_secondary_peak_, abs_h);
filter_floor_accum += abs_h;
filter_secondary_peak = std::max(filter_secondary_peak, abs_h);
}
filter_floor_accum_ = filter_floor_accum;
filter_secondary_peak_ = filter_secondary_peak;
if (region.end_sample_ == filter_to_analyze.size() - 1) {
float filter_floor = filter_floor_accum_ /