quicktimevideo.hpp

// ***************************************************************** -*- C++ -*-
/*
 * Copyright (C) 2004-2021 Exiv2 authors
 * This program is part of the Exiv2 distribution.
 *
 * 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, 5th Floor, Boston, MA 02110-1301 USA.
 */
#ifndef QUICKTIMEVIDEO_HPP_
#define QUICKTIMEVIDEO_HPP_
 
// *****************************************************************************
#include "exiv2lib_export.h"
 
// included header files
#include "exif.hpp"
#include "image.hpp"
 
// *****************************************************************************
// namespace extensions
namespace Exiv2 {
 
// *****************************************************************************
// class definitions
 
class EXIV2API QuickTimeVideo : public Image {
 public:
 
 
  explicit QuickTimeVideo(BasicIo::UniquePtr io, size_t max_recursion_depth = 1000);
 
 
  void readMetadata() override;
  void writeMetadata() override;
 
 
  [[nodiscard]] std::string mimeType() const override;
 
 protected:
  void decodeBlock(size_t recursion_depth, std::string const& entered_from = "");
  void tagDecoder(Exiv2::DataBuf& buf, size_t size, size_t recursion_depth);
 
 private:
  void fileTypeDecoder(size_t size);
  void mediaHeaderDecoder(size_t size);
  void videoHeaderDecoder(size_t size);
  void movieHeaderDecoder(size_t size);
  void trackHeaderDecoder(size_t size);
  void handlerDecoder(size_t size);
  void multipleEntriesDecoder(size_t recursion_depth);
  void sampleDesc(size_t size);
  void imageDescDecoder();
  void userDataDecoder(size_t size, size_t recursion_depth);
  void previewTagDecoder(size_t size);
  void keysTagDecoder(size_t size);
  void trackApertureTagDecoder(size_t size);
  void NikonTagsDecoder(size_t size);
  void CameraTagsDecoder(size_t size);
  void audioDescDecoder();
  void timeToSampleDecoder();
  void setMediaStream();
  void discard(size_t size);
 
  uint64_t timeScale_ = 0;
  int currentStream_ = 0;
  bool continueTraversing_ = false;
  uint64_t height_ = 0;
  uint64_t width_ = 0;
  const size_t max_recursion_depth_;
 
};  // QuickTimeVideo End
 
// *****************************************************************************
// template, inline and free functions
 
// These could be static private functions on Image subclasses but then
// ImageFactory needs to be made a friend.
EXIV2API Image::UniquePtr newQTimeInstance(BasicIo::UniquePtr io, bool create);
 
EXIV2API bool isQTimeType(BasicIo& iIo, bool advance);
 
}  // namespace Exiv2
 
#endif  // QUICKTIMEVIDEO_HPP_