blob: ddcebe56258ae9d89ac862a41c51e64653eb1133 [file] [log] [blame]
* Copyright (c) 2012 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.
#include "webrtc/base/criticalsection.h"
#include "webrtc/common_audio/resampler/include/push_resampler.h"
#include "webrtc/common_types.h"
#include "webrtc/modules/audio_mixer/include/new_audio_conference_mixer.h"
#include "webrtc/modules/audio_mixer/include/audio_mixer_defines.h"
#include "webrtc/modules/utility/include/file_recorder.h"
#include "webrtc/voice_engine/level_indicator.h"
#include "webrtc/voice_engine/voice_engine_defines.h"
namespace webrtc {
class AudioProcessing;
class FileWrapper;
class VoEMediaProcess;
namespace voe {
class Statistics;
// Note: this class is in the process of being rewritten and merged
// with AudioConferenceMixer. Expect inheritance chains to be changed,
// member functions removed or renamed.
class AudioMixer : public OldAudioMixerOutputReceiver, public FileCallback {
static int32_t Create(AudioMixer*& mixer, uint32_t instanceId); // NOLINT
static void Destroy(AudioMixer*& mixer); // NOLINT
int32_t SetEngineInformation(Statistics& engineStatistics); // NOLINT
int32_t SetAudioProcessingModule(AudioProcessing* audioProcessingModule);
// VoEExternalMedia
int RegisterExternalMediaProcessing(VoEMediaProcess& // NOLINT
int DeRegisterExternalMediaProcessing();
int32_t MixActiveChannels();
int32_t DoOperationsOnCombinedSignal(bool feed_data_to_apm);
int32_t SetMixabilityStatus(MixerAudioSource& participant, // NOLINT
bool mixable);
int32_t SetAnonymousMixabilityStatus(MixerAudioSource& participant, // NOLINT
bool mixable);
int GetMixedAudio(int sample_rate_hz,
size_t num_channels,
AudioFrame* audioFrame);
// VoEVolumeControl
int GetSpeechOutputLevel(uint32_t& level); // NOLINT
int GetSpeechOutputLevelFullRange(uint32_t& level); // NOLINT
int SetOutputVolumePan(float left, float right);
int GetOutputVolumePan(float& left, float& right); // NOLINT
// VoEFile
int StartRecordingPlayout(const char* fileName, const CodecInst* codecInst);
int StartRecordingPlayout(OutStream* stream, const CodecInst* codecInst);
int StopRecordingPlayout();
virtual ~AudioMixer();
// from AudioMixerOutputReceiver
virtual void NewMixedAudio(int32_t id,
const AudioFrame& generalAudioFrame,
const AudioFrame** uniqueAudioFrames,
uint32_t size);
// For file recording
void PlayNotification(int32_t id, uint32_t durationMs);
void RecordNotification(int32_t id, uint32_t durationMs);
void PlayFileEnded(int32_t id);
void RecordFileEnded(int32_t id);
explicit AudioMixer(uint32_t instanceId);
// uses
Statistics* _engineStatisticsPtr;
AudioProcessing* _audioProcessingModulePtr;
rtc::CriticalSection _callbackCritSect;
// protect the _outputFileRecorderPtr and _outputFileRecording
rtc::CriticalSection _fileCritSect;
NewAudioConferenceMixer& _mixerModule;
AudioFrame _audioFrame;
// Converts mixed audio to the audio device output rate.
PushResampler<int16_t> resampler_;
// Converts mixed audio to the audio processing rate.
PushResampler<int16_t> audioproc_resampler_;
AudioLevel _audioLevel; // measures audio level for the combined signal
int _instanceId;
VoEMediaProcess* _externalMediaCallbackPtr;
bool _externalMedia;
float _panLeft;
float _panRight;
int _mixingFrequencyHz;
FileRecorder* _outputFileRecorderPtr;
bool _outputFileRecording;
} // namespace voe
} // namespace webrtc