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#ifndef __MP3_Handler_hpp__
#define __MP3_Handler_hpp__ 1
// =================================================================================================
// Copyright Adobe
// Copyright 2008 Adobe
// All Rights Reserved
//
// NOTICE: Adobe permits you to use, modify, and distribute this file in accordance with the terms
// of the Adobe license agreement accompanying it. If you have received this file from a source other
// than Adobe, then your use, modification, or distribution of it requires the prior written permission
// of Adobe.
// =================================================================================================
#include "public/include/XMP_Environment.h" // ! This must be the first include.
#include "XMPFiles/source/XMPFiles_Impl.hpp"
#include "XMPFiles/source/FormatSupport/ID3_Support.hpp"
using namespace std;
using namespace ID3_Support;
extern XMPFileHandler * MP3_MetaHandlerCTor ( XMPFiles * parent );
extern bool MP3_CheckFormat ( XMP_FileFormat format,
XMP_StringPtr filePath,
XMP_IO* fileRef,
XMPFiles * parent );
static const XMP_OptionBits kMP3_HandlerFlags = (kXMPFiles_CanInjectXMP |
kXMPFiles_CanExpand |
kXMPFiles_PrefersInPlace |
kXMPFiles_AllowsOnlyXMP |
kXMPFiles_ReturnsRawPacket |
kXMPFiles_CanReconcile);
class MP3_MetaHandler : public XMPFileHandler
{
public:
MP3_MetaHandler ( XMPFiles * parent );
~MP3_MetaHandler();
void CacheFileData();
void UpdateFile ( bool doSafeUpdate );
void WriteTempFile ( XMP_IO* tempRef );
void ProcessXMP();
private:
////////////////////////////////////////////////////////////////////////////////////
// instance vars
XMP_Int64 oldTagSize; // the entire tag, including padding, including 10B header
XMP_Int64 oldPadding; // number of padding bytes
XMP_Int64 oldFramesSize; // actual space needed by frames := oldTagSize - 10 - oldPadding
XMP_Int64 newTagSize;
XMP_Int64 newPadding;
XMP_Int64 newFramesSize;
// decision making:
bool tagIsDirty; // true, if any legacy properties changed.
bool mustShift; // entire tag to rewrite? (or possibly just XMP?)
XMP_Uns8 majorVersion, minorVersion; // Version Number post ID3v2, i.e. 3 0 ==> ID3v2.3.0
bool hasID3Tag; //incoming file has an ID3 tag?
bool hasFooter;
//bool legacyChanged; // tag rewrite certainly needed?
ID3Header id3Header;
XMP_Int64 extHeaderSize;
bool hasExtHeader;
// the frames
// * all to be kept till write-out
// * parsed/understood only if needed
// * vector used to free memory in handler destructor
std::vector<ID3_Support::ID3v2Frame*> framesVector;
// ID3v1 - treated as a single object
ID3v1Tag id3v1Tag;
// * also kept in a map for better import<->export access
// * only keeps legacy 'relevant frames' (i.e. no abused COMM frames)
// * only keeps last relevant frame
// * earlier 'relevant frames' will be deleted. This map also helps in this
// * key shall be the FrameID, always interpreted as BE
std::map<XMP_Uns32,ID3_Support::ID3v2Frame*> framesMap;
}; // MP3_MetaHandler
// =================================================================================================
#endif /* __MP3_Handler_hpp__ */
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