AnotherFoxGuy/webrtc-audio-processing
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Bump to WebRTC M131 release

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Ongoing fixes and improvements, transient suppressor is gone. Also,
dropping isac because it doesn't seem to be useful, and is just build
system deadweight now.

Upstream references:

  Version: 131.0.6778.200
  WebRTC: 79aff54b0fa9238ce3518dd9eaf9610cd6f22e82
  Chromium: 2a19506ad24af755f2a215a4c61f775393e0db42
This commit is contained in:
Arun Raghavan
2024-12-24 19:32:07 -05:00
parent 8bdb53d91c
commit b5c48b97f6
263 changed files with 4628 additions and 20416 deletions
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38
webrtc/modules/audio_processing/agc2/clipping_predictor.cc
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@ -131,11 +131,11 @@ class ClippingEventPredictor : public ClippingPredictor {
// if at least `GetMinFramesProcessed()` frames have been processed since the
// last reset and a clipping event is predicted. `level`, `min_mic_level`, and
// `max_mic_level` are limited to [0, 255] and `default_step` to [1, 255].
absl::optional<int> EstimateClippedLevelStep(int channel,
int level,
int default_step,
int min_mic_level,
int max_mic_level) const {
std::optional<int> EstimateClippedLevelStep(int channel,
int level,
int default_step,
int min_mic_level,
int max_mic_level) const {
RTC_CHECK_GE(channel, 0);
RTC_CHECK_LT(channel, ch_buffers_.size());
RTC_DCHECK_GE(level, 0);
@ -147,7 +147,7 @@ class ClippingEventPredictor : public ClippingPredictor {
RTC_DCHECK_GE(max_mic_level, 0);
RTC_DCHECK_LE(max_mic_level, 255);
if (level <= min_mic_level) {
return absl::nullopt;
return std::nullopt;
}
if (PredictClippingEvent(channel)) {
const int new_level =
@ -157,7 +157,7 @@ class ClippingEventPredictor : public ClippingPredictor {
return step;
}
}
return absl::nullopt;
return std::nullopt;
}
private:
@ -271,11 +271,11 @@ class ClippingPeakPredictor : public ClippingPredictor {
// least `GetMinFramesProcessed()` frames have been processed since the last
// reset and a clipping event is predicted. `level`, `min_mic_level`, and
// `max_mic_level` are limited to [0, 255] and `default_step` to [1, 255].
absl::optional<int> EstimateClippedLevelStep(int channel,
int level,
int default_step,
int min_mic_level,
int max_mic_level) const {
std::optional<int> EstimateClippedLevelStep(int channel,
int level,
int default_step,
int min_mic_level,
int max_mic_level) const {
RTC_DCHECK_GE(channel, 0);
RTC_DCHECK_LT(channel, ch_buffers_.size());
RTC_DCHECK_GE(level, 0);
@ -287,9 +287,9 @@ class ClippingPeakPredictor : public ClippingPredictor {
RTC_DCHECK_GE(max_mic_level, 0);
RTC_DCHECK_LE(max_mic_level, 255);
if (level <= min_mic_level) {
return absl::nullopt;
return std::nullopt;
}
absl::optional<float> estimate_db = EstimatePeakValue(channel);
std::optional<float> estimate_db = EstimatePeakValue(channel);
if (estimate_db.has_value() && estimate_db.value() > clipping_threshold_) {
int step = 0;
if (!adaptive_step_estimation_) {
@ -309,7 +309,7 @@ class ClippingPeakPredictor : public ClippingPredictor {
return level - new_level;
}
}
return absl::nullopt;
return std::nullopt;
}
private:
@ -319,18 +319,18 @@ class ClippingPeakPredictor : public ClippingPredictor {
// Predicts clipping sample peaks based on the processed audio frames.
// Returns the estimated peak value if clipping is predicted. Otherwise
// returns absl::nullopt.
absl::optional<float> EstimatePeakValue(int channel) const {
// returns std::nullopt.
std::optional<float> EstimatePeakValue(int channel) const {
const auto reference_metrics = ch_buffers_[channel]->ComputePartialMetrics(
reference_window_delay_, reference_window_length_);
if (!reference_metrics.has_value()) {
return absl::nullopt;
return std::nullopt;
}
const auto metrics =
ch_buffers_[channel]->ComputePartialMetrics(0, window_length_);
if (!metrics.has_value() ||
!(FloatS16ToDbfs(metrics.value().max) > clipping_threshold_)) {
return absl::nullopt;
return std::nullopt;
}
const float reference_crest_factor =
ComputeCrestFactor(reference_metrics.value());