riffvideo.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 RIFFVIDEO_HPP
#define RIFFVIDEO_HPP
 
// *****************************************************************************
#include "exiv2lib_export.h"
 
// included header files
#include "exif.hpp"
#include "image.hpp"
 
// *****************************************************************************
// namespace extensions
namespace Exiv2 {
 
// *****************************************************************************
// class definitions
 
    // Add RIFF to the supported image formats
    namespace ImageType {
        const int riff = 20; 
    }

    class EXIV2LIB_DEPRECATED_EXPORT RiffVideo:public Image
    {
    public:


        RiffVideo(BasicIo::AutoPtr io);


        void printStructure(std::ostream& out, PrintStructureOption option,int depth);
        void readMetadata();
        void writeMetadata();


        std::string mimeType() const;
        const char* printAudioEncoding(uint64_t i);
 
    protected:
        void decodeBlock();
        void tagDecoder(Exiv2::DataBuf& buf, unsigned long size);
        void junkHandler(long size);
        void streamHandler(long size);
        void streamFormatHandler(long size);
        void aviHeaderTagsHandler(long size);
        void listHandler(long size);
        void streamDataTagHandler(long size);
        void infoTagsHandler();
        void nikonTagsHandler();
        void odmlTagsHandler();
        void skipListData();
        void dateTimeOriginal(long size, int i = 0);
        double returnSampleRate(Exiv2::DataBuf& buf, long divisor = 1);
        void fillAspectRatio(long width = 1,long height = 1);
        void fillDuration(double frame_rate, long frame_count);
 
    private:


        RiffVideo(const RiffVideo& rhs);
        RiffVideo& operator=(const RiffVideo& rhs);
        bool equalsRiffTag(Exiv2::DataBuf& buf ,const char* str);
 
    private:
        const static int RIFF_TAG_SIZE;
        const static char* RIFF_CHUNK_HEADER_ICCP;
        const static char* RIFF_CHUNK_HEADER_EXIF;
        const static char* RIFF_CHUNK_HEADER_XMP;
        bool continueTraversing_;
        int streamType_;
 
    }; //Class RiffVideo
 
// *****************************************************************************
// template, inline and free functions
 
    // These could be static private functions on Image subclasses but then
    // ImageFactory needs to be made a friend.
    EXIV2LIB_DEPRECATED_EXPORT Image::AutoPtr newRiffInstance(BasicIo::AutoPtr io, bool create);

    EXIV2LIB_DEPRECATED_EXPORT bool isRiffType(BasicIo& iIo, bool advance);
 
}                                       // namespace Exiv2
 
#endif                                  // RIFFVIDEO_HPP