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/*
* Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef AUDIO_AUDIO_STATE_H_
#define AUDIO_AUDIO_STATE_H_
#include <map>
#include <memory>
#include <unordered_set>
#include "audio/audio_transport_impl.h"
#include "audio/null_audio_poller.h"
#include "call/audio_state.h"
#include "rtc_base/constructormagic.h"
#include "rtc_base/criticalsection.h"
#include "rtc_base/refcount.h"
#include "rtc_base/thread_checker.h"
namespace webrtc {
class AudioSendStream;
class AudioReceiveStream;
namespace internal {
class AudioState final : public webrtc::AudioState {
public:
explicit AudioState(const AudioState::Config& config);
~AudioState() override;
AudioProcessing* audio_processing() override {
RTC_DCHECK(config_.audio_processing);
return config_.audio_processing.get();
}
AudioTransport* audio_transport() override {
return &audio_transport_;
}
void SetPlayout(bool enabled) override;
void SetRecording(bool enabled) override;
Stats GetAudioInputStats() const override;
void SetStereoChannelSwapping(bool enable) override;
AudioDeviceModule* audio_device_module() {
RTC_DCHECK(config_.audio_device_module);
return config_.audio_device_module.get();
}
bool typing_noise_detected() const;
void AddReceivingStream(webrtc::AudioReceiveStream* stream);
void RemoveReceivingStream(webrtc::AudioReceiveStream* stream);
void AddSendingStream(webrtc::AudioSendStream* stream,
int sample_rate_hz, size_t num_channels);
void RemoveSendingStream(webrtc::AudioSendStream* stream);
private:
// rtc::RefCountInterface implementation.
void AddRef() const override;
rtc::RefCountReleaseStatus Release() const override;
void UpdateAudioTransportWithSendingStreams();
rtc::ThreadChecker thread_checker_;
rtc::ThreadChecker process_thread_checker_;
const webrtc::AudioState::Config config_;
bool recording_enabled_ = true;
bool playout_enabled_ = true;
// Reference count; implementation copied from rtc::RefCountedObject.
// TODO(nisse): Use RefCountedObject or RefCountedBase instead.
mutable volatile int ref_count_ = 0;
// Transports mixed audio from the mixer to the audio device and
// recorded audio to the sending streams.
AudioTransportImpl audio_transport_;
// Null audio poller is used to continue polling the audio streams if audio
// playout is disabled so that audio processing still happens and the audio
// stats are still updated.
std::unique_ptr<NullAudioPoller> null_audio_poller_;
std::unordered_set<webrtc::AudioReceiveStream*> receiving_streams_;
struct StreamProperties {
int sample_rate_hz = 0;
size_t num_channels = 0;
};
std::map<webrtc::AudioSendStream*, StreamProperties> sending_streams_;
RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(AudioState);
};
} // namespace internal
} // namespace webrtc
#endif // AUDIO_AUDIO_STATE_H_
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