a first attempt at a new render system

2020-05-14 14:43:03 +10:00
parent c5dfddff0d
commit 863ae1b913
60 changed files with 927 additions and 3164 deletions
@@ -0,0 +1,82 @@
+/***
+
+  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() = default;
+
+  QByteArray GetHash(const rational& time) const;
+
+  void SetHash(const rational& time, const QByteArray& hash);
+
+  void SetTimebase(const rational& tb);
+
+  /**
+   * @brief Returns a list of frames that use a particular hash
+   */
+  QList<rational> GetFramesWithHash(const QByteArray& hash) const;
+
+  /**
+   * @brief Same as FramesWithHash() but also removes these frames from the map
+   */
+  QList<rational> TakeFramesWithHash(const QByteArray& hash);
+
+  const QMap<rational, QByteArray>& time_hash_map() const;
+
+  /**
+   * @brief Return the path of the cached image at this time
+   */
+  static QString CachePathName(const QByteArray &hash, const PixelFormat::Format& pix_fmt);
+
+  static bool SaveCacheFrame(const QString& filename, char *data, const VideoRenderingParams &vparam);
+  static void SaveCacheFrame(const QByteArray& hash, char *data, const VideoRenderingParams &vparam);
+
+  static QString GetFormatExtension(const PixelFormat::Format& f);
+
+protected:
+  virtual void LengthChangedEvent(const rational& old, const rational& newlen) override;
+
+  virtual void InvalidateEvent(const TimeRange& range) override;
+
+private:
+  QMap<rational, QByteArray> time_hash_map_;
+
+  rational timebase_;
+
+};
+
+OLIVE_NAMESPACE_EXIT
+
+#endif // VIDEORENDERFRAMECACHE_H