50b2efef6e
The old resampler is used whenever it supports the requested rates. Otherwise the sinc resampler is enabled. Integrated with output_mixer in order to test the change through output_mixer_unittest. The sinc resampler will not yet be used, since we don't feed VoE with any rates that trigger it. BUG=webrtc:1395 R=bjornv@webrtc.org Review URL: https://webrtc-codereview.appspot.com/1355004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@3915 4adac7df-926f-26a2-2b94-8c16560cd09d
155 lines
4.7 KiB
C++
155 lines
4.7 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 WEBRTC_VOICE_ENGINE_OUTPUT_MIXER_H_
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#define WEBRTC_VOICE_ENGINE_OUTPUT_MIXER_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/interface/audio_conference_mixer.h"
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#include "webrtc/modules/audio_conference_mixer/interface/audio_conference_mixer_defines.h"
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#include "webrtc/modules/utility/interface/file_recorder.h"
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#include "webrtc/voice_engine/dtmf_inband.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 CriticalSectionWrapper;
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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 AudioMixerStatusReceiver,
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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, const 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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// VoEDtmf
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int PlayDtmfTone(uint8_t eventCode, int lengthMs, int attenuationDb);
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int StartPlayingDtmfTone(uint8_t eventCode, int attenuationDb);
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int StopPlayingDtmfTone();
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int32_t MixActiveChannels();
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int32_t DoOperationsOnCombinedSignal();
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int32_t SetMixabilityStatus(MixerParticipant& participant,
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const bool mixable);
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int32_t SetAnonymousMixabilityStatus(MixerParticipant& participant,
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const bool mixable);
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int GetMixedAudio(int sample_rate_hz, int 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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const int32_t id,
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const AudioFrame& generalAudioFrame,
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const AudioFrame** uniqueAudioFrames,
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const uint32_t size);
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// from AudioMixerStatusReceiver
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virtual void MixedParticipants(
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const int32_t id,
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const ParticipantStatistics* participantStatistics,
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const uint32_t size);
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virtual void VADPositiveParticipants(
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const int32_t id,
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const ParticipantStatistics* participantStatistics,
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const uint32_t size);
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virtual void MixedAudioLevel(const int32_t id, const uint32_t level);
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// For file recording
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void PlayNotification(const int32_t id, const uint32_t durationMs);
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void RecordNotification(const int32_t id, const uint32_t durationMs);
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void PlayFileEnded(const int32_t id);
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void RecordFileEnded(const int32_t id);
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private:
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OutputMixer(const uint32_t instanceId);
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void APMAnalyzeReverseStream();
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int InsertInbandDtmfTone();
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// uses
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Statistics* _engineStatisticsPtr;
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AudioProcessing* _audioProcessingModulePtr;
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// owns
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CriticalSectionWrapper& _callbackCritSect;
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// protect the _outputFileRecorderPtr and _outputFileRecording
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CriticalSectionWrapper& _fileCritSect;
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AudioConferenceMixer& _mixerModule;
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AudioFrame _audioFrame;
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PushResampler resampler_; // converts mixed audio to fit ADM format
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PushResampler audioproc_resampler_; // converts mixed audio to fit APM rate
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AudioLevel _audioLevel; // measures audio level for the combined signal
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DtmfInband _dtmfGenerator;
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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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