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84 lines
2.8 KiB
C++
84 lines
2.8 KiB
C++
/*
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* Copyright 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef OBOE_LIVEEFFECTENGINE_H
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#define OBOE_LIVEEFFECTENGINE_H
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#include <jni.h>
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#include <oboe/Oboe.h>
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#include <string>
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#include <thread>
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#include "FullDuplexPass.h"
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class LiveEffectEngine : public oboe::AudioStreamCallback {
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public:
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LiveEffectEngine();
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void setRecordingDeviceId(int32_t deviceId);
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void setPlaybackDeviceId(int32_t deviceId);
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/**
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* @param isOn
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* @return true if it succeeds
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*/
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bool setEffectOn(bool isOn);
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/*
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* oboe::AudioStreamDataCallback interface implementation
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*/
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oboe::DataCallbackResult onAudioReady(oboe::AudioStream *oboeStream,
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void *audioData, int32_t numFrames) override;
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/*
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* oboe::AudioStreamErrorCallback interface implementation
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*/
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void onErrorBeforeClose(oboe::AudioStream *oboeStream, oboe::Result error) override;
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void onErrorAfterClose(oboe::AudioStream *oboeStream, oboe::Result error) override;
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bool setAudioApi(oboe::AudioApi);
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bool isAAudioRecommended(void);
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private:
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bool mIsEffectOn = false;
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int32_t mRecordingDeviceId = oboe::kUnspecified;
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int32_t mPlaybackDeviceId = oboe::kUnspecified;
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const oboe::AudioFormat mFormat = oboe::AudioFormat::Float; // for easier processing
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oboe::AudioApi mAudioApi = oboe::AudioApi::AAudio;
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int32_t mSampleRate = oboe::kUnspecified;
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const int32_t mInputChannelCount = oboe::ChannelCount::Stereo;
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const int32_t mOutputChannelCount = oboe::ChannelCount::Stereo;
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std::unique_ptr<FullDuplexPass> mDuplexStream;
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std::shared_ptr<oboe::AudioStream> mRecordingStream;
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std::shared_ptr<oboe::AudioStream> mPlayStream;
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oboe::Result openStreams();
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void closeStreams();
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void closeStream(std::shared_ptr<oboe::AudioStream> &stream);
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oboe::AudioStreamBuilder *setupCommonStreamParameters(
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oboe::AudioStreamBuilder *builder);
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oboe::AudioStreamBuilder *setupRecordingStreamParameters(
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oboe::AudioStreamBuilder *builder, int32_t sampleRate);
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oboe::AudioStreamBuilder *setupPlaybackStreamParameters(
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oboe::AudioStreamBuilder *builder);
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void warnIfNotLowLatency(std::shared_ptr<oboe::AudioStream> &stream);
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};
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#endif // OBOE_LIVEEFFECTENGINE_H
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