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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 VIDEORENDERFRAMECACHE_H
#define VIDEORENDERFRAMECACHE_H
#include <QMutex>
#include "common/rational.h"
#include "common/timerange.h"
#include "render/pixelformat.h"
#include "render/playbackcache.h"
#include "render/videoparams.h"
OLIVE_NAMESPACE_ENTER
class FrameHashCache : public PlaybackCache
{
Q_OBJECT
public:
FrameHashCache(QObject* parent = nullptr) :
PlaybackCache(parent)
{
}
QByteArray GetHash(const rational& time);
void SetTimebase(const rational& tb);
/**
* @brief Returns a list of frames that use a particular hash
*/
QList<rational> GetFramesWithHash(const QByteArray& hash);
/**
* @brief Same as FramesWithHash() but also removes these frames from the map
*/
QList<rational> TakeFramesWithHash(const QByteArray& hash);
QMap<rational, QByteArray> time_hash_map();
/**
* @brief Return the path of the cached image at this time
*/
static QString CachePathName(const QByteArray &hash);
static bool SaveCacheFrame(const QString& filename, char *data, const VideoParams &vparam, int linesize_bytes);
static void SaveCacheFrame(const QByteArray& hash, char *data, const VideoParams &vparam, int linesize_bytes);
static void SaveCacheFrame(const QByteArray& hash, FramePtr frame);
static FramePtr LoadCacheFrame(const QByteArray& hash);
static FramePtr LoadCacheFrame(const QString& fn);
static QString GetFormatExtension();
static QVector<rational> GetFrameListFromTimeRange(TimeRangeList range_list, const rational& timebase);
QVector<rational> GetFrameListFromTimeRange(const TimeRangeList &range);
QVector<rational> GetInvalidatedFrames();
public slots:
void SetHash(const OLIVE_NAMESPACE::rational& time, const QByteArray& hash, const qint64 &job_time);
protected:
virtual void LengthChangedEvent(const rational& old, const rational& newlen) override;
virtual void InvalidateEvent(const TimeRange& range) override;
virtual void ShiftEvent(const rational& from, const rational& to) override;
private:
QMap<rational, QByteArray> time_hash_map_;
rational timebase_;
};
OLIVE_NAMESPACE_EXIT
#endif // VIDEORENDERFRAMECACHE_H
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