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Avoid AGC2 runtime allocation and activate it on demand

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This CL ensures that the AGC2 is created and initialized only when
needed.

Apart from that, the CL also avoids a runtime-reallocation that happens
each time the setting is applied.

Bug: webrtc:5298
Change-Id: Iad9eaa05a3d0baa0788cd11b2aa17ddd8e0c509b
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/163987
Commit-Queue: Per Åhgren <peah@webrtc.org>
Reviewed-by: Sam Zackrisson <saza@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30139}
This commit is contained in:
Per Åhgren
2020-01-03 10:36:34 +01:00
committed by Commit Bot
parent 83ee98292f
commit 2bd85ab039
2 changed files with 30 additions and 14 deletions
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17
modules/audio_processing/gain_controller2.cc
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@ -27,8 +27,11 @@ GainController2::GainController2()
new ApmDataDumper(rtc::AtomicOps::Increment(&instance_count_))),
gain_applier_(/*hard_clip_samples=*/false,
/*initial_gain_factor=*/0.f),
adaptive_agc_(new AdaptiveAgc(data_dumper_.get())),
limiter_(static_cast<size_t>(48000), data_dumper_.get(), "Agc2") {}
limiter_(static_cast<size_t>(48000), data_dumper_.get(), "Agc2") {
if (config_.adaptive_digital.enabled) {
adaptive_agc_.reset(new AdaptiveAgc(data_dumper_.get()));
}
}
GainController2::~GainController2() = default;
@ -47,14 +50,14 @@ void GainController2::Process(AudioBuffer* audio) {
audio->num_frames());
// Apply fixed gain first, then the adaptive one.
gain_applier_.ApplyGain(float_frame);
if (config_.adaptive_digital.enabled) {
if (adaptive_agc_) {
adaptive_agc_->Process(float_frame, limiter_.LastAudioLevel());
}
limiter_.Process(float_frame);
}
void GainController2::NotifyAnalogLevel(int level) {
if (analog_level_ != level && config_.adaptive_digital.enabled) {
if (analog_level_ != level && adaptive_agc_) {
adaptive_agc_->Reset();
}
analog_level_ = level;
@ -72,7 +75,11 @@ void GainController2::ApplyConfig(
limiter_.Reset();
}
gain_applier_.SetGainFactor(DbToRatio(config_.fixed_digital.gain_db));
adaptive_agc_.reset(new AdaptiveAgc(data_dumper_.get(), config_));
if (config_.adaptive_digital.enabled) {
adaptive_agc_.reset(new AdaptiveAgc(data_dumper_.get(), config_));
} else {
adaptive_agc_.reset();
}
}
bool GainController2::Validate(