Initial community commit

Src/replicant/nsid3v2/frameheader.h

@@ -0,0 +1,124 @@
+#pragma once
+#include "foundation/types.h"
+#include "header.h"
+
+
+namespace ID3v2
+{
+	class FrameHeader
+	{
+	protected:
+		FrameHeader(const ID3v2::Header &_header);
+		const ID3v2::Header &tagHeader;
+	};
+}
+
+namespace ID3v2_2
+{
+
+	struct FrameHeaderData
+	{
+		int8_t id[4]; // ID3v2.2 uses 3 bytes but we add a NULL for the last to make it easier
+		uint8_t size[3]; // 24 bit size field
+	};
+
+	class FrameHeader : public ID3v2::FrameHeader
+	{
+	public:
+		FrameHeader(const ID3v2_2::FrameHeader &frame_header, const ID3v2::Header &_header);
+		FrameHeader(const ID3v2::Header &_header, const int8_t *id, int flags);
+		FrameHeader(const ID3v2::Header &_header, const void *data);
+		bool IsValid() const;
+		bool Unsynchronised() const;
+		uint32_t FrameSize() const;
+		const int8_t *GetIdentifier() const;
+		void SetSize(uint32_t data_size);
+		int SerializedSize(uint32_t *written) const;
+		int Serialize(void *data) const;
+		enum
+		{
+			SIZE=6,
+		};
+	private:
+		FrameHeaderData frameHeaderData;
+	};
+}
+
+namespace ID3v2_3
+{
+
+	class FrameHeaderBase : public ID3v2::FrameHeader
+	{
+	public:
+		int SerializedSize(uint32_t *written) const;
+		int Serialize(void *data, uint32_t *written) const;
+		bool IsValid() const;
+		const int8_t *GetIdentifier() const;
+		enum
+		{
+			SIZE=10,
+		};
+
+	protected:
+		FrameHeaderBase(const ID3v2_3::FrameHeaderBase &frame_header_base, const ID3v2::Header &_header);
+		FrameHeaderBase(const ID3v2::Header &_header);
+		FrameHeaderBase(const ID3v2::Header &_header, const int8_t *id, int flags);
+
+		int8_t id[4];
+		uint32_t size;
+		uint8_t flags[2];
+	};
+
+	class FrameHeader : public ID3v2_3::FrameHeaderBase
+	{
+	public:
+		FrameHeader(const ID3v2_3::FrameHeader &frame_header, const ID3v2::Header &_header);
+		FrameHeader(const ID3v2::Header &_header, const int8_t *id, int flags);
+		FrameHeader(const ID3v2::Header &_header, const void *data);
+		
+		uint32_t FrameSize() const;
+		bool Encrypted() const;
+		bool Compressed() const;
+		bool Grouped() const;
+		bool ReadOnly() const;
+		bool Unsynchronised() const;
+		bool TagAlterPreservation() const;
+		bool FileAlterPreservation() const;
+
+		void ClearCompressed();
+		/* sets a new size, given a data size.  this function might add additional size (grouped, compressed, etc) */
+		void SetSize(uint32_t data_size);
+		
+	private:
+
+	};
+}
+
+namespace ID3v2_4
+{
+	class FrameHeader : public ID3v2_3::FrameHeaderBase
+	{
+	public:
+		FrameHeader(const ID3v2_4::FrameHeader &frame_header, const ID3v2::Header &_header);
+		FrameHeader(const ID3v2::Header &_header, const int8_t *id, int flags);
+		FrameHeader(const ID3v2::Header &_header, const void *data);
+		/* size to read from disk */
+		uint32_t FrameSize() const;
+		bool Encrypted() const;
+		bool Compressed() const;
+		bool Grouped() const;
+		bool ReadOnly() const;
+		bool Unsynchronised() const;
+		bool FrameUnsynchronised() const;
+		bool DataLengthIndicated() const;
+		bool TagAlterPreservation() const;
+		bool FileAlterPreservation() const;
+
+		void ClearUnsynchronized();
+		void ClearCompressed();
+		/* sets a new size, given a data size.  this function might add additional size (grouped, compressed, etc) */
+		void SetSize(uint32_t data_size);
+		int SerializedSize(uint32_t *written) const;
+		int Serialize(void *data, uint32_t *written) const;
+	};
+}