proxygenerator.h

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/***

    Olive - Non-Linear Video Editor
    Copyright (C) 2019  Olive Team

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

***/

#ifndef PROXYGENERATOR_H
#define PROXYGENERATOR_H

#include <QThread>
#include <QVector>
#include <QMutex>
#include <QWaitCondition>

#include "project/footage.h"

struct ProxyInfo {
    FootagePtr footage;
    double size_multiplier;
    int codec_type;
    QString path;
};

class ProxyGenerator : public QThread {
    Q_OBJECT
public:
    ProxyGenerator();
    void run();
    void queue(const ProxyInfo& info);
    void cancel();
    double get_proxy_progress(FootagePtr f);
private:
    // queue of footage to process proxies for
    QVector<ProxyInfo> proxy_queue;

    // threading objects
    QWaitCondition waitCond;
    QMutex mutex;

    // set to true if you want to permanently close ProxyGenerator
    bool cancelled;

    // set to true if you want to abort the footage currently being processed
    bool skip;

    // stores progress in percent of proxy currently being processed
    double current_progress;

    // function that performs the actual transcode
    void transcode(const ProxyInfo& info);
};

// proxy generator is a global omnipotent entity
extern ProxyGenerator proxy_generator;

#endif // PROXYGENERATOR_H