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714e3cbb48
Bug: webrtc:13579 Change-Id: Ifec66fb6ba9724d18539de7245a358c2d13c7939 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/268547 Reviewed-by: Ivo Creusen <ivoc@webrtc.org> Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org> Commit-Queue: Ali Tofigh <alito@webrtc.org> Cr-Commit-Position: refs/heads/main@{#37573}
71 lines
2.4 KiB
C++
71 lines
2.4 KiB
C++
/* Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "modules/audio_coding/neteq/expand_uma_logger.h"
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#include "absl/strings/string_view.h"
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#include "rtc_base/checks.h"
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#include "system_wrappers/include/metrics.h"
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namespace webrtc {
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namespace {
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std::unique_ptr<TickTimer::Countdown> GetNewCountdown(
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const TickTimer& tick_timer,
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int logging_period_s) {
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return tick_timer.GetNewCountdown((logging_period_s * 1000) /
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tick_timer.ms_per_tick());
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}
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} // namespace
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ExpandUmaLogger::ExpandUmaLogger(absl::string_view uma_name,
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int logging_period_s,
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const TickTimer* tick_timer)
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: uma_name_(uma_name),
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logging_period_s_(logging_period_s),
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tick_timer_(*tick_timer),
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timer_(GetNewCountdown(tick_timer_, logging_period_s_)) {
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RTC_DCHECK(tick_timer);
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RTC_DCHECK_GT(logging_period_s_, 0);
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}
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ExpandUmaLogger::~ExpandUmaLogger() = default;
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void ExpandUmaLogger::UpdateSampleCounter(uint64_t samples,
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int sample_rate_hz) {
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if ((last_logged_value_ && *last_logged_value_ > samples) ||
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sample_rate_hz_ != sample_rate_hz) {
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// Sanity checks. The incremental counter moved backwards, or sample rate
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// changed.
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last_logged_value_.reset();
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}
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last_value_ = samples;
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sample_rate_hz_ = sample_rate_hz;
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if (!last_logged_value_) {
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last_logged_value_ = absl::optional<uint64_t>(samples);
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}
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if (!timer_->Finished()) {
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// Not yet time to log.
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return;
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}
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RTC_DCHECK(last_logged_value_);
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RTC_DCHECK_GE(last_value_, *last_logged_value_);
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const uint64_t diff = last_value_ - *last_logged_value_;
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last_logged_value_ = absl::optional<uint64_t>(last_value_);
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// Calculate rate in percent.
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RTC_DCHECK_GT(sample_rate_hz, 0);
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const int rate = (100 * diff) / (sample_rate_hz * logging_period_s_);
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RTC_DCHECK_GE(rate, 0);
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RTC_DCHECK_LE(rate, 100);
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RTC_HISTOGRAM_PERCENTAGE_SPARSE(uma_name_, rate);
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timer_ = GetNewCountdown(tick_timer_, logging_period_s_);
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}
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} // namespace webrtc
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