131 lines
3.9 KiB
C
131 lines
3.9 KiB
C
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/*
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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 WEBRTC_VOICE_ENGINE_OUTPUT_MIXER_H_
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#define WEBRTC_VOICE_ENGINE_OUTPUT_MIXER_H_
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#include "webrtc/base/criticalsection.h"
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#include "webrtc/common_audio/resampler/include/push_resampler.h"
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#include "webrtc/common_types.h"
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#include "webrtc/modules/audio_conference_mixer/include/audio_conference_mixer.h"
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#include "webrtc/modules/audio_conference_mixer/include/audio_conference_mixer_defines.h"
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#include "webrtc/modules/utility/include/file_recorder.h"
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#include "webrtc/voice_engine/level_indicator.h"
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#include "webrtc/voice_engine/voice_engine_defines.h"
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namespace webrtc {
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class AudioProcessing;
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class FileWrapper;
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class VoEMediaProcess;
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namespace voe {
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class Statistics;
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class OutputMixer : public AudioMixerOutputReceiver,
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public FileCallback
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{
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public:
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static int32_t Create(OutputMixer*& mixer, uint32_t instanceId);
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static void Destroy(OutputMixer*& mixer);
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int32_t SetEngineInformation(Statistics& engineStatistics);
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int32_t SetAudioProcessingModule(
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AudioProcessing* audioProcessingModule);
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// VoEExternalMedia
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int RegisterExternalMediaProcessing(
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VoEMediaProcess& proccess_object);
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int DeRegisterExternalMediaProcessing();
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int32_t MixActiveChannels();
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int32_t DoOperationsOnCombinedSignal(bool feed_data_to_apm);
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int32_t SetMixabilityStatus(MixerParticipant& participant,
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bool mixable);
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int32_t SetAnonymousMixabilityStatus(MixerParticipant& participant,
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bool mixable);
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int GetMixedAudio(int sample_rate_hz, size_t num_channels,
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AudioFrame* audioFrame);
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// VoEVolumeControl
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int GetSpeechOutputLevel(uint32_t& level);
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int GetSpeechOutputLevelFullRange(uint32_t& level);
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int SetOutputVolumePan(float left, float right);
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int GetOutputVolumePan(float& left, float& right);
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// VoEFile
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int StartRecordingPlayout(const char* fileName,
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const CodecInst* codecInst);
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int StartRecordingPlayout(OutStream* stream,
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const CodecInst* codecInst);
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int StopRecordingPlayout();
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virtual ~OutputMixer();
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// from AudioMixerOutputReceiver
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virtual void NewMixedAudio(
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int32_t id,
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const AudioFrame& generalAudioFrame,
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const AudioFrame** uniqueAudioFrames,
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uint32_t size);
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// For file recording
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void PlayNotification(int32_t id, uint32_t durationMs);
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void RecordNotification(int32_t id, uint32_t durationMs);
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void PlayFileEnded(int32_t id);
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void RecordFileEnded(int32_t id);
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private:
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OutputMixer(uint32_t instanceId);
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// uses
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Statistics* _engineStatisticsPtr;
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AudioProcessing* _audioProcessingModulePtr;
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rtc::CriticalSection _callbackCritSect;
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// protect the _outputFileRecorderPtr and _outputFileRecording
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rtc::CriticalSection _fileCritSect;
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AudioConferenceMixer& _mixerModule;
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AudioFrame _audioFrame;
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// Converts mixed audio to the audio device output rate.
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PushResampler<int16_t> resampler_;
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// Converts mixed audio to the audio processing rate.
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PushResampler<int16_t> audioproc_resampler_;
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AudioLevel _audioLevel; // measures audio level for the combined signal
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int _instanceId;
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VoEMediaProcess* _externalMediaCallbackPtr;
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bool _externalMedia;
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float _panLeft;
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float _panRight;
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int _mixingFrequencyHz;
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FileRecorder* _outputFileRecorderPtr;
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bool _outputFileRecording;
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};
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} // namespace voe
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} // namespace werbtc
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#endif // VOICE_ENGINE_OUTPUT_MIXER_H_
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