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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QFFMPEGENCODER_P_H
#define QFFMPEGENCODER_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qffmpegthread_p.h"
#include "qffmpegencodingformatcontext_p.h"
#include <private/qplatformmediarecorder_p.h>
#include <qmediarecorder.h>
#include <queue>
QT_BEGIN_NAMESPACE
class QFFmpegAudioInput;
class QVideoFrame;
class QPlatformVideoSource;
namespace QFFmpeg
{
class RecordingEngine;
class Muxer;
class AudioEncoder;
class VideoEncoder;
class VideoFrameEncoder;
template <typename T>
T dequeueIfPossible(std::queue<T> &queue)
{
if (queue.empty())
return T{};
auto result = std::move(queue.front());
queue.pop();
return result;
}
class RecordingEngine : public QObject
{
Q_OBJECT
public:
RecordingEngine(const QMediaEncoderSettings &settings, std::unique_ptr<EncodingFormatContext> context);
~RecordingEngine();
void addAudioInput(QFFmpegAudioInput *input);
void addVideoSource(QPlatformVideoSource *source);
void start();
void finalize();
void setPaused(bool p);
void setMetaData(const QMediaMetaData &metaData);
AVFormatContext *avFormatContext() { return m_formatContext->avFormatContext(); }
Muxer *getMuxer() { return m_muxer; }
public Q_SLOTS:
void newTimeStamp(qint64 time);
Q_SIGNALS:
void durationChanged(qint64 duration);
void error(QMediaRecorder::Error code, const QString &description);
void finalizationDone();
private:
template<typename... Args>
void addMediaFrameHandler(Args &&...args);
class EncodingFinalizer : public QThread
{
public:
EncodingFinalizer(RecordingEngine &recordingEngine);
void run() override;
private:
RecordingEngine &m_recordingEngine;
};
private:
QMediaEncoderSettings m_settings;
QMediaMetaData m_metaData;
std::unique_ptr<EncodingFormatContext> m_formatContext;
Muxer *m_muxer = nullptr;
AudioEncoder *m_audioEncoder = nullptr;
QList<VideoEncoder *> m_videoEncoders;
QList<QMetaObject::Connection> m_connections;
QMutex m_timeMutex;
qint64 m_timeRecorded = 0;
bool m_isHeaderWritten = false;
};
}
QT_END_NAMESPACE
#endif
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