/*****************************************************************************
* Copyright (C) 2022 VLC authors and VideoLAN
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifndef THUMBNAILCOLLECTOR_HPP
#define THUMBNAILCOLLECTOR_HPP
#include <QObject>
#include <QHash>
#include <QSet>
#include <QMutex>
#include <memory>
#include <functional>
class MediaLib;
struct vlc_medialibrary_t;
struct vlc_ml_event_callback_t;
struct vlc_ml_event_t;
class ThumbnailCollector : public QObject
{
Q_OBJECT
public:
ThumbnailCollector(QObject *parent = nullptr);
void start(MediaLib *ml, const QSet<int64_t> &mlIds);
QHash<int64_t, QString> allGenerated() { return m_thumbnails; }
signals:
void finished();
private:
static void onVlcMLEvent(void *data, const vlc_ml_event_t *event);
QMutex m_mut;
MediaLib *m_ml {};
std::unique_ptr<vlc_ml_event_callback_t,
std::function<void(vlc_ml_event_callback_t*)>> m_ml_event_handle {};
QSet<int64_t> m_pending;
QHash<int64_t, QString> m_thumbnails;
};
#endif // THUMBNAILCOLLECTOR_HPP
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