141 lines
3.0 KiB
C++
141 lines
3.0 KiB
C++
#ifndef AC3_HPP
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#define AC3_HPP
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//______________________________________________________________________________
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//
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// AC3.hpp
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//
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//______________________________________________________________________________
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//
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#pragma warning(disable:4786)
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#include <windows.h>
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#include <string>
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#include <vector>
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#include <exception>
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#include <iosfwd>
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#include <cstdio>
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extern "C"
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{
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#include "ac3.h"
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#include "bitstream.h"
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}
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namespace AC3
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{
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//______________________________________________________________________________
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//
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typedef __int64 offset_t;
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//--------------------------------------
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enum
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{
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SamplesPerBlock = 256 * 6
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};
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//--------------------------------------
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class FileError : public std::exception
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{
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public:
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FileError(DWORD messageId);
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FileError(const char* message);
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const char* what() const;
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private:
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std::string m_strMessage;
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};
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//--------------------------------------
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struct Header
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{
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unsigned long m_nBlocks;
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unsigned long m_ulSamplesPerSecond;
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unsigned long m_ulSamplesPerBlock;
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unsigned long m_ulBytesPerBlock; // blockAlign
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};
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std::ostream& operator<<(std::ostream& os, const Header& h);
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//--------------------------------------
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struct SyncFrame
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{
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syncinfo_t m_si;
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bsi_t m_bsi;
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};
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std::ostream& operator<<(std::ostream& os, const SyncFrame& sf);
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//--------------------------------------
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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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typedef std::vector<SyncFrame> VectorSyncFrame;
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File();
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File(const char* szName, mode_t mode);
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~File();
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void open(const char* szName, 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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const char* name() const;
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mode_t mode() const;
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unsigned long blockCount() const;
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unsigned long samplesPerSecond() const;
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unsigned long samplesPerBlock() const;
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int samplesPerSec() const;
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const Header& header() const;
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// const SyncFrame& syncFrame(int nSyncFrame) const;
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// SyncFrame& syncFrame(int nSyncFrame);
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private:
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File(const File& rhs); // Not implemented
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File& operator=(const File& rhs); // Not implemented
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int readHeader();
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void readSyncFrame(SyncFrame& sf);
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void writeSyncFrame(const SyncFrame& sf);
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void read(void* buffer, size_t size) const;
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void write(const void* data, size_t size);
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offset_t size() const;
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void seekCurrent(__int64) const;
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void seek(offset_t) const;
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offset_t tell() const;
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FILE* m_pFile;
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int m_hFile;
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bitstream_t* m_pbs;
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std::string m_strName;
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mode_t m_mode;
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Header m_header;
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VectorSyncFrame m_vSyncFrame;
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__int64 m_fileSize;
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__int64 m_fileOffset;
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};
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} // namespace AC3
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#endif // AC3_HPP
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