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APM: remove unused field trial in AgcManagerDirect

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The removed field trial was added in
https://webrtc-review.googlesource.com/c/src/+/160708.

Bug: webrtc:7494
Change-Id: I1abe51ea086342666a0420d5c10ddea87810aa26
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/278781
Reviewed-by: Sam Zackrisson <saza@webrtc.org>
Commit-Queue: Alessio Bazzica <alessiob@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#38366}
This commit is contained in:
Alessio Bazzica 2022-10-11 11:02:50 +02:00 committed by WebRTC LUCI CQ
parent 2235776597
commit db955f0f13
2 changed files with 5 additions and 23 deletions
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27
modules/audio_processing/agc/agc_manager_direct.cc
View File

@ -63,12 +63,6 @@ constexpr int kOverrideWaitFrames = 0;
using AnalogAgcConfig =
AudioProcessing::Config::GainController1::AnalogGainController;
// Returns whether a fall-back solution to choose the maximum level should be
// chosen.
bool UseMaxAnalogChannelLevel() {
return field_trial::IsEnabled("WebRTC-UseMaxAnalogAgcChannelLevel");
}
// If the "WebRTC-Audio-2ndAgcMinMicLevelExperiment" field trial is specified,
// parses it and returns a value between 0 and 255 depending on the field-trial
// string. Returns an unspecified value if the field trial is not specified, if
@ -486,7 +480,6 @@ AgcManagerDirect::AgcManagerDirect(int num_capture_channels,
: analog_controller_enabled_(analog_config.enabled),
min_mic_level_override_(GetMinMicLevelOverride()),
data_dumper_(new ApmDataDumper(instance_counter_.fetch_add(1) + 1)),
use_min_channel_level_(!UseMaxAnalogChannelLevel()),
num_capture_channels_(num_capture_channels),
disable_digital_adaptive_(!analog_config.enable_digital_adaptive),
frames_since_clipped_(analog_config.clipped_wait_frames),
@ -714,21 +707,11 @@ void AgcManagerDirect::AggregateChannelLevels() {
int new_recommended_input_volume =
channel_agcs_[0]->recommended_analog_level();
channel_controlling_gain_ = 0;
if (use_min_channel_level_) {
for (size_t ch = 1; ch < channel_agcs_.size(); ++ch) {
int level = channel_agcs_[ch]->recommended_analog_level();
if (level < new_recommended_input_volume) {
new_recommended_input_volume = level;
channel_controlling_gain_ = static_cast<int>(ch);
}
}
} else {
for (size_t ch = 1; ch < channel_agcs_.size(); ++ch) {
int level = channel_agcs_[ch]->recommended_analog_level();
if (level > new_recommended_input_volume) {
new_recommended_input_volume = level;
channel_controlling_gain_ = static_cast<int>(ch);
}
for (size_t ch = 1; ch < channel_agcs_.size(); ++ch) {
int level = channel_agcs_[ch]->recommended_analog_level();
if (level < new_recommended_input_volume) {
new_recommended_input_volume = level;
channel_controlling_gain_ = static_cast<int>(ch);
}
}

1
modules/audio_processing/agc/agc_manager_direct.h
View File

@ -153,7 +153,6 @@ class AgcManagerDirect final {
const absl::optional<int> min_mic_level_override_;
std::unique_ptr<ApmDataDumper> data_dumper_;
static std::atomic<int> instance_counter_;
const bool use_min_channel_level_;
const int num_capture_channels_;
const bool disable_digital_adaptive_;