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Fix the standard deviation calculation in the level controller perf tests.

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BUG=webrtc:5920

Review-Url: https://codereview.webrtc.org/2518523002
Cr-Commit-Position: refs/heads/master@{#15186}
This commit is contained in:
ivoc 2016-11-22 03:36:50 -08:00 committed by Commit bot
parent 820f578f2b
commit 0dbb6f57fc
1 changed files with 5 additions and 5 deletions
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10
webrtc/modules/audio_processing/level_controller/level_controller_complexity_unittest.cc
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@ -135,11 +135,11 @@ class SubmodulePerformanceTimer {
RTC_DCHECK(!timestamps_us_.empty());
double average_duration = GetDurationAverage();
int64_t variance =
std::accumulate(timestamps_us_.begin(), timestamps_us_.end(), 0,
[average_duration](const int64_t& a, const int64_t& b) {
return a + (b - average_duration);
});
double variance = std::accumulate(
timestamps_us_.begin(), timestamps_us_.end(), 0.0,
[average_duration](const double& a, const int64_t& b) {
return a + (b - average_duration) * (b - average_duration);
});
return sqrt(variance / timestamps_us_.size());
}