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Optional: Use nullopt and implicit construction in /modules/audio_processing

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Changes places where we explicitly construct an Optional to instead use
nullopt or the requisite value type only.

This CL was uploaded by git cl split.

R=henrik.lundin@webrtc.org

Bug: None
Change-Id: I733a83f702fe11884d229a1713cfac952727bde8
Reviewed-on: https://webrtc-review.googlesource.com/23601
Commit-Queue: Oskar Sundbom <ossu@webrtc.org>
Reviewed-by: Henrik Lundin <henrik.lundin@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#20786}
This commit is contained in:
Oskar Sundbom
2017-11-17 14:34:48 +01:00
committed by Commit Bot
parent 28dfeb7f24
commit aa8b67da9d
27 changed files with 124 additions and 147 deletions
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2
modules/audio_processing/level_controller/level_controller.cc
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@ -202,7 +202,7 @@ void LevelController::Initialize(int sample_rate_hz) {
metrics_.Initialize(sample_rate_hz);
last_gain_ = 1.0f;
sample_rate_hz_ = rtc::Optional<int>(sample_rate_hz);
sample_rate_hz_ = sample_rate_hz;
dc_forgetting_factor_ = 0.01f * sample_rate_hz / 48000.f;
std::fill(dc_level_, dc_level_ + arraysize(dc_level_), 0.f);
}