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