itsmattkc
ee81a47f2e
Qt's audio system has served us well, but it's a little limited moving forward. PortAudio is a mature and versatile library that will allow for better audio for users.
128 lines
2.9 KiB
C++
128 lines
2.9 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2021 Olive Team
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#ifndef AUDIOMANAGER_H
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#define AUDIOMANAGER_H
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#include <memory>
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#include <QAudioInput>
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#include <QtConcurrent/QtConcurrent>
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#include <QThread>
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#include <portaudio.h>
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#include "audiovisualwaveform.h"
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#include "common/define.h"
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#include "render/audioparams.h"
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#include "render/audioplaybackcache.h"
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#include "render/previewaudiodevice.h"
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namespace olive {
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/**
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* @brief Audio input and output management class
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*
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* Wraps around a QAudioOutput and AudioHybridDevice, connecting them together and exposing audio functionality to
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* the rest of the system.
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*/
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class AudioManager : public QObject
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{
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Q_OBJECT
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public:
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enum Backend {
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kAudioBackendQt,
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kAudioBackendCount
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};
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static QString GetAudioBackendName(Backend b);
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static void CreateInstance();
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static void DestroyInstance();
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static AudioManager* instance();
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void RefreshDevices();
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bool IsRefreshingOutputs();
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bool IsRefreshingInputs();
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void PushToOutput(const QByteArray& samples);
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/**
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* @brief Start playing audio from AudioPlaybackCache
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*/
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void StartOutput(std::shared_ptr<PreviewAudioDevice> device);
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/**
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* @brief Stop audio output immediately
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*/
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void StopOutput();
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void SetOutputDevice(const QAudioDeviceInfo& info);
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void SetOutputParams(const AudioParams& params);
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void SetInputDevice(const QAudioDeviceInfo& info);
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const QList<QAudioDeviceInfo>& ListInputDevices();
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const QList<QAudioDeviceInfo>& ListOutputDevices();
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signals:
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void OutputListReady();
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void InputListReady();
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private:
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AudioManager();
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virtual ~AudioManager() override;
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void StartOutputStream(PaStreamCallback *streamCallback = nullptr);
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void StopOutputStream();
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QList<QAudioDeviceInfo> input_devices_;
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QList<QAudioDeviceInfo> output_devices_;
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bool is_refreshing_inputs_;
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bool is_refreshing_outputs_;
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static AudioManager* instance_;
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PaDeviceIndex output_;
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PaStream *output_stream_;
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AudioParams output_params_;
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std::shared_ptr<QIODevice> output_device_;
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std::unique_ptr<QAudioInput> input_;
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QAudioDeviceInfo input_device_info_;
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QIODevice* input_file_;
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private slots:
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void OutputDevicesRefreshed();
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void InputDevicesRefreshed();
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};
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}
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#endif // AUDIOMANAGER_H
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