89 lines
2.2 KiB
C++
89 lines
2.2 KiB
C++
#ifndef TAG_PARSER_MP4ATOM_H
|
|
#define TAG_PARSER_MP4ATOM_H
|
|
|
|
#include "./mp4ids.h"
|
|
|
|
#include "../genericfileelement.h"
|
|
|
|
#include <c++utilities/conversion/stringconversion.h>
|
|
#include <c++utilities/conversion/types.h>
|
|
|
|
#include <iostream>
|
|
#include <list>
|
|
#include <memory>
|
|
|
|
namespace TagParser {
|
|
|
|
class Mp4Atom;
|
|
class Mp4Container;
|
|
|
|
/*!
|
|
* \brief Defines traits for the GenericFileElement implementation Mp4Atom.
|
|
*/
|
|
template <> class TAG_PARSER_EXPORT FileElementTraits<Mp4Atom> {
|
|
public:
|
|
typedef Mp4Container ContainerType;
|
|
typedef uint32 IdentifierType;
|
|
typedef uint64 DataSizeType;
|
|
|
|
/*!
|
|
* \brief Returns the minimal atom size which is 8 byte.
|
|
*/
|
|
static constexpr byte minimumElementSize()
|
|
{
|
|
return 8;
|
|
}
|
|
};
|
|
|
|
class TAG_PARSER_EXPORT Mp4Atom : public GenericFileElement<Mp4Atom> {
|
|
friend class GenericFileElement<Mp4Atom>;
|
|
|
|
public:
|
|
Mp4Atom(ContainerType &container, uint64 startOffset);
|
|
|
|
std::string idToString() const;
|
|
bool isParent() const;
|
|
bool isPadding() const;
|
|
uint64 firstChildOffset() const;
|
|
|
|
static void seekBackAndWriteAtomSize(std::ostream &stream, const std::ostream::pos_type &startOffset, Diagnostics &diag);
|
|
static void seekBackAndWriteAtomSize64(std::ostream &stream, const std::ostream::pos_type &startOffset);
|
|
static constexpr void addHeaderSize(uint64 &dataSize);
|
|
static void makeHeader(uint64 size, uint32 id, IoUtilities::BinaryWriter &writer);
|
|
|
|
protected:
|
|
Mp4Atom(ContainerType &container, uint64 startOffset, uint64 maxSize);
|
|
Mp4Atom(Mp4Atom &parent, uint64 startOffset);
|
|
|
|
void internalParse(Diagnostics &diag);
|
|
|
|
private:
|
|
std::string parsingContext() const;
|
|
};
|
|
|
|
/*!
|
|
* \brief Converts the specified atom \a ID to a printable string.
|
|
*/
|
|
inline std::string Mp4Atom::idToString() const
|
|
{
|
|
auto idString = ConversionUtilities::interpretIntegerAsString<IdentifierType>(id());
|
|
for (char &c : idString) {
|
|
if (c < ' ') {
|
|
c = '?';
|
|
}
|
|
}
|
|
return idString;
|
|
}
|
|
|
|
/*!
|
|
* \brief Adds the header size to the specified \a data size.
|
|
*/
|
|
constexpr void Mp4Atom::addHeaderSize(uint64 &dataSize)
|
|
{
|
|
dataSize += (dataSize < 0xFFFFFFF7 ? 8 : 16);
|
|
}
|
|
|
|
} // namespace TagParser
|
|
|
|
#endif // TAG_PARSER_MP4ATOM_H
|