mpeg4descriptor.h

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#ifndef TAG_PARSER_MPEG4DESCRIPTOR_H
#define TAG_PARSER_MPEG4DESCRIPTOR_H
 
#include "../genericfileelement.h"
 
#include <memory>
 
namespace TagParser {
 
class Mp4Container;
class Mpeg4Descriptor;
 
template <> class TAG_PARSER_EXPORT FileElementTraits<Mpeg4Descriptor> {
public:
    using ContainerType = Mp4Container;
    using IdentifierType = std::uint8_t;
    using DataSizeType = std::uint32_t;
 
    static constexpr std::uint8_t minimumElementSize()
    {
        return 2;
    }
};
 
class TAG_PARSER_EXPORT Mpeg4Descriptor : public GenericFileElement<Mpeg4Descriptor> {
    friend class GenericFileElement<Mpeg4Descriptor>;
 
public:
    Mpeg4Descriptor(ContainerType &container, std::uint64_t startOffset, std::uint64_t maxSize);
 
    std::string idToString() const;
    bool isParent() const;
    bool isPadding() const;
    std::uint64_t firstChildOffset() const;
 
protected:
    Mpeg4Descriptor(Mpeg4Descriptor &parent, std::uint64_t startOffset);
 
    void internalParse(Diagnostics &diag);
 
private:
    std::string parsingContext() const;
};
 
inline bool Mpeg4Descriptor::isParent() const
{
    return m_firstChild != nullptr;
}
 
inline bool Mpeg4Descriptor::isPadding() const
{
    return false;
}
 
inline std::uint64_t Mpeg4Descriptor::firstChildOffset() const
{
    return firstChild() ? firstChild()->startOffset() - startOffset() : 0;
}
 
} // namespace TagParser
 
#endif // TAG_PARSER_MPEG4DESCRIPTOR_H