itsmattkc
412a6dfdc2
macOS audio playback failed due to audio being processed in the main thread. Now all audio playback has been placed into its own high priority thread to always keep up better with the operating system's demands.
69 lines
1.6 KiB
C++
69 lines
1.6 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 AUDIOOUTPUTDEVICEPROXY_H
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#define AUDIOOUTPUTDEVICEPROXY_H
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#include <QFile>
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#include "common/define.h"
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#include "tempoprocessor.h"
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OLIVE_NAMESPACE_ENTER
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/**
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* @brief QIODevice wrapper that can adjust speed/reverse an audio file
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*/
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class AudioOutputDeviceProxy : public QIODevice
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{
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Q_OBJECT
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public:
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AudioOutputDeviceProxy() = default;
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virtual ~AudioOutputDeviceProxy() override;
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void SetParameters(const AudioRenderingParams& params);
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void SetDevice(const QString &filename, qint64 offset, int playback_speed);
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virtual void close() override;
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protected:
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virtual qint64 readData(char *data, qint64 maxlen) override;
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virtual qint64 writeData(const char *data, qint64 maxSize) override;
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private:
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qint64 ReverseAwareRead(char* data, qint64 maxlen);
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QFile file_;
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TempoProcessor tempo_processor_;
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AudioRenderingParams params_;
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int playback_speed_;
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};
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OLIVE_NAMESPACE_EXIT
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#endif // AUDIOOUTPUTDEVICEPROXY_H
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