87 lines
2.5 KiB
C++
87 lines
2.5 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 VIDEORENDERFRAMECACHE_H
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#define VIDEORENDERFRAMECACHE_H
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#include <QMutex>
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#include "common/rational.h"
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#include "common/timerange.h"
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#include "render/pixelformat.h"
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#include "render/playbackcache.h"
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#include "render/videoparams.h"
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OLIVE_NAMESPACE_ENTER
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class FrameHashCache : public PlaybackCache
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{
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Q_OBJECT
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public:
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FrameHashCache() = default;
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QByteArray GetHash(const rational& time) const;
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void SetHash(const rational& time, const QByteArray& hash);
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void SetTimebase(const rational& tb);
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/**
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* @brief Returns a list of frames that use a particular hash
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*/
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QList<rational> GetFramesWithHash(const QByteArray& hash) const;
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/**
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* @brief Same as FramesWithHash() but also removes these frames from the map
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*/
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QList<rational> TakeFramesWithHash(const QByteArray& hash);
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const QMap<rational, QByteArray>& time_hash_map() const;
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/**
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* @brief Return the path of the cached image at this time
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*/
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static QString CachePathName(const QByteArray &hash, const PixelFormat::Format& pix_fmt);
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static bool SaveCacheFrame(const QString& filename, char *data, const VideoRenderingParams &vparam);
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static void SaveCacheFrame(const QByteArray& hash, char *data, const VideoRenderingParams &vparam);
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static void SaveCacheFrame(const QByteArray& hash, FramePtr frame);
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static QString GetFormatExtension(const PixelFormat::Format& f);
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static QList<rational> GetFrameListFromTimeRange(TimeRangeList range_list, const rational& timebase);
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QList<rational> GetFrameListFromTimeRange(const TimeRangeList &range) const;
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protected:
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virtual void LengthChangedEvent(const rational& old, const rational& newlen) override;
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virtual void InvalidateEvent(const TimeRange& range) override;
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private:
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QMap<rational, QByteArray> time_hash_map_;
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rational timebase_;
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};
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OLIVE_NAMESPACE_EXIT
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#endif // VIDEORENDERFRAMECACHE_H
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