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79ea89ee74
This adds the histogram WebRTC.Audio.AudioMixer.NewHighestSourceCount which logs the highest number of sources an AudioMixer has had. The statistic is logged whenever the highest number of sources increases. This allows us to differentiate the statistic to see how many times the mixer has had a certain maximum number of sources. Chromium CL: https://chromium-review.googlesource.com/c/chromium/src/+/4414896 Bug: chromium:1430806 Change-Id: Iab92e201a0b667741cc8f3bbbed92fa989d7fcda Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/300860 Reviewed-by: Olga Sharonova <olka@webrtc.org> Commit-Queue: Fredrik Hernqvist <fhernqvist@google.com> Reviewed-by: Alessio Bazzica <alessiob@webrtc.org> Cr-Commit-Position: refs/heads/main@{#39833}
105 lines
3.4 KiB
C++
105 lines
3.4 KiB
C++
/*
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* Copyright (c) 2012 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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#ifndef MODULES_AUDIO_MIXER_AUDIO_MIXER_IMPL_H_
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#define MODULES_AUDIO_MIXER_AUDIO_MIXER_IMPL_H_
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#include <stddef.h>
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#include <memory>
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#include <vector>
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#include "api/array_view.h"
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#include "api/audio/audio_frame.h"
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#include "api/audio/audio_mixer.h"
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#include "api/scoped_refptr.h"
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#include "modules/audio_mixer/frame_combiner.h"
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#include "modules/audio_mixer/output_rate_calculator.h"
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#include "rtc_base/race_checker.h"
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#include "rtc_base/synchronization/mutex.h"
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#include "rtc_base/thread_annotations.h"
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namespace webrtc {
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class AudioMixerImpl : public AudioMixer {
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public:
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struct SourceStatus;
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// AudioProcessing only accepts 10 ms frames.
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static const int kFrameDurationInMs = 10;
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static const int kDefaultNumberOfMixedAudioSources = 3;
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static rtc::scoped_refptr<AudioMixerImpl> Create(
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int max_sources_to_mix = kDefaultNumberOfMixedAudioSources);
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static rtc::scoped_refptr<AudioMixerImpl> Create(
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std::unique_ptr<OutputRateCalculator> output_rate_calculator,
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bool use_limiter,
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int max_sources_to_mix = kDefaultNumberOfMixedAudioSources);
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~AudioMixerImpl() override;
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AudioMixerImpl(const AudioMixerImpl&) = delete;
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AudioMixerImpl& operator=(const AudioMixerImpl&) = delete;
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// AudioMixer functions
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bool AddSource(Source* audio_source) override;
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void RemoveSource(Source* audio_source) override;
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void Mix(size_t number_of_channels,
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AudioFrame* audio_frame_for_mixing) override
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RTC_LOCKS_EXCLUDED(mutex_);
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// Returns true if the source was mixed last round. Returns
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// false and logs an error if the source was never added to the
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// mixer.
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bool GetAudioSourceMixabilityStatusForTest(Source* audio_source) const;
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protected:
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AudioMixerImpl(std::unique_ptr<OutputRateCalculator> output_rate_calculator,
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bool use_limiter,
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int max_sources_to_mix);
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private:
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struct HelperContainers;
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void UpdateSourceCountStats() RTC_EXCLUSIVE_LOCKS_REQUIRED(mutex_);
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// Compute what audio sources to mix from audio_source_list_. Ramp
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// in and out. Update mixed status. Mixes up to
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// kMaximumAmountOfMixedAudioSources audio sources.
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rtc::ArrayView<AudioFrame* const> GetAudioFromSources(int output_frequency)
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RTC_EXCLUSIVE_LOCKS_REQUIRED(mutex_);
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// The critical section lock guards audio source insertion and
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// removal, which can be done from any thread. The race checker
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// checks that mixing is done sequentially.
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mutable Mutex mutex_;
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const int max_sources_to_mix_;
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std::unique_ptr<OutputRateCalculator> output_rate_calculator_;
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// List of all audio sources.
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std::vector<std::unique_ptr<SourceStatus>> audio_source_list_
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RTC_GUARDED_BY(mutex_);
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const std::unique_ptr<HelperContainers> helper_containers_
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RTC_GUARDED_BY(mutex_);
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// Component that handles actual adding of audio frames.
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FrameCombiner frame_combiner_;
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// The highest source count this mixer has ever had. Used for UMA stats.
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size_t max_source_count_ever_ = 0;
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};
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} // namespace webrtc
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#endif // MODULES_AUDIO_MIXER_AUDIO_MIXER_IMPL_H_
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