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#ifndef WAV_HPP
#define WAV_HPP
#include "FourCC.hpp"
#include <io.h>
#include <exception>
#include <string>
#include <iosfwd>
#include <vector>
namespace WAV
{
class FileError : public exception
{
public:
explicit FileError(const char* message);
const char* what() const;
private:
const std::string message;
};
struct Format
{
unsigned short formatTag;
unsigned short nChannels;
unsigned long samplesPerSec;
unsigned long avgBytesPerSec;
unsigned short blockAlign;
unsigned short bitsPerSample;
typedef std::vector<unsigned char> ByteArray;
ByteArray extra;
};
std::ostream& operator<<(std::ostream&, const Format&);
typedef __int64 offset_t;
class File
{
public:
enum mode_t { in, out, inout };
File();
File(const char* name, mode_t mode);
~File();
void open(const char* name, mode_t mode);
void close();
bool isOpen() const;
bool eof() const;
//size_t sampleNum() const;
//size_t sampleCount() const;
//void seekSample(size_t sampleNum) const;
offset_t offset() const;
void seekOffset(offset_t) const;
size_t read(void* buffer, size_t size) const;
void write(const void* buffer, size_t size);
mode_t mode() const;
const char* name() const;
const Format& format() const;
Format& format();
void seekFormat() const;
//void readFormat() const;
void readFormatChunk() const;
void readFactChunk() const;
void setFactSize(size_t);
size_t factSize() const;
void seekFact() const;
void writeFact(const void*, size_t);
void readFact(void* buffer, size_t size) const;
void writeFormat();
void writeFormatChunk();
size_t dataSize() const;
private:
File(const File&);
File& operator=(const File&);
void init();
void seek(__int64, int) const;
const FourCC queryId() const;
const FourCC readId() const;
void writeId(const char* id);
void writeSize(size_t size);
size_t readSize() const;
int handle_;
__int64 dataPosn;
size_t m_dataSize;
//size_t m_sampleCount;
char name_[_MAX_PATH];
mode_t mode_;
mutable Format format_;
mutable size_t m_factSize;
};
}
#endif
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