90 lines
2.4 KiB
C++
90 lines
2.4 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2019 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 AUDIOHYBRIDDEVICE_H
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#define AUDIOHYBRIDDEVICE_H
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#include <memory>
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#include <QAudioOutput>
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#include <QBuffer>
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#include <QIODevice>
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#include <QMutex>
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#include "outputdeviceproxy.h"
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class AudioOutputManager : public QObject
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{
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Q_OBJECT
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public:
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AudioOutputManager(QObject* parent = nullptr);
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bool OutputIsSet();
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/**
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* @brief If enabled, this will emit the SentSamples() signal whenever samples are sent to the output device
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*/
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void SetEnableSendingSamples(bool e);
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void SetOutputDevice(QAudioDeviceInfo info, QAudioFormat format);
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void Push(const QByteArray &samples);
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/**
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* @brief Connect a QIODevice (e.g. QFile) to start sending to the audio output
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*
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* This will clear any pushed samples or QIODevices currently being read and will start reading from this next time
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* the audio output requests data.
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*/
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void PullFromDevice(QIODevice* device, int playback_speed);
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void ResetToPushMode();
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void SetParameters(const AudioRenderingParams& params);
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signals:
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/**
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* @brief Signal emitted when samples are sent to the output device
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*
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* This sends an array of values corresponding to the channel count. Each value is an average of all the samples just
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* sent to that channel. Useful for connecting to AudioMonitor.
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*
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* Can be disabled with SetEnableSendingSamples() to save CPU usage.
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*/
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void SentSamples(QVector<double> averages);
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private:
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void ProcessAverages(const char* data, int length);
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std::unique_ptr<QAudioOutput> output_;
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QIODevice* push_device_;
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QByteArray pushed_samples_;
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int pushed_sample_index_;
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bool enable_sending_samples_;
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AudioOutputDeviceProxy device_proxy_;
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private slots:
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void OutputNotified();
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};
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#endif // AUDIOHYBRIDDEVICE_H
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