mirror of
https://github.com/WinampDesktop/winamp.git
synced 2024-12-29 17:36:06 +00:00
141 lines
3 KiB
C++
141 lines
3 KiB
C++
#ifndef AC3_HPP
|
|
#define AC3_HPP
|
|
//______________________________________________________________________________
|
|
//
|
|
// AC3.hpp
|
|
//
|
|
|
|
//______________________________________________________________________________
|
|
//
|
|
|
|
#pragma warning(disable:4786)
|
|
|
|
#include <windows.h>
|
|
#include <string>
|
|
#include <vector>
|
|
#include <exception>
|
|
#include <iosfwd>
|
|
#include <cstdio>
|
|
extern "C"
|
|
{
|
|
#include "ac3.h"
|
|
#include "bitstream.h"
|
|
}
|
|
|
|
namespace AC3
|
|
{
|
|
|
|
//______________________________________________________________________________
|
|
//
|
|
|
|
typedef __int64 offset_t;
|
|
|
|
//--------------------------------------
|
|
enum
|
|
{
|
|
SamplesPerBlock = 256 * 6
|
|
};
|
|
|
|
//--------------------------------------
|
|
class FileError : public std::exception
|
|
{
|
|
public:
|
|
FileError(DWORD messageId);
|
|
FileError(const char* message);
|
|
const char* what() const;
|
|
private:
|
|
std::string m_strMessage;
|
|
};
|
|
|
|
//--------------------------------------
|
|
struct Header
|
|
{
|
|
unsigned long m_nBlocks;
|
|
unsigned long m_ulSamplesPerSecond;
|
|
unsigned long m_ulSamplesPerBlock;
|
|
unsigned long m_ulBytesPerBlock; // blockAlign
|
|
};
|
|
|
|
std::ostream& operator<<(std::ostream& os, const Header& h);
|
|
|
|
//--------------------------------------
|
|
struct SyncFrame
|
|
{
|
|
syncinfo_t m_si;
|
|
bsi_t m_bsi;
|
|
};
|
|
|
|
std::ostream& operator<<(std::ostream& os, const SyncFrame& sf);
|
|
|
|
//--------------------------------------
|
|
class File
|
|
{
|
|
public:
|
|
|
|
enum mode_t {in, out, inout};
|
|
|
|
typedef std::vector<SyncFrame> VectorSyncFrame;
|
|
|
|
File();
|
|
File(const char* szName, mode_t mode);
|
|
|
|
~File();
|
|
|
|
void open(const char* szName, mode_t mode);
|
|
void close();
|
|
|
|
bool isOpen() const;
|
|
bool eof() const;
|
|
|
|
const char* name() const;
|
|
mode_t mode() const;
|
|
|
|
unsigned long blockCount() const;
|
|
unsigned long samplesPerSecond() const;
|
|
unsigned long samplesPerBlock() const;
|
|
|
|
int samplesPerSec() const;
|
|
|
|
const Header& header() const;
|
|
|
|
// const SyncFrame& syncFrame(int nSyncFrame) const;
|
|
// SyncFrame& syncFrame(int nSyncFrame);
|
|
|
|
private:
|
|
|
|
File(const File& rhs); // Not implemented
|
|
File& operator=(const File& rhs); // Not implemented
|
|
|
|
int readHeader();
|
|
|
|
void readSyncFrame(SyncFrame& sf);
|
|
|
|
void writeSyncFrame(const SyncFrame& sf);
|
|
|
|
void read(void* buffer, size_t size) const;
|
|
void write(const void* data, size_t size);
|
|
|
|
offset_t size() const;
|
|
void seekCurrent(__int64) const;
|
|
void seek(offset_t) const;
|
|
offset_t tell() const;
|
|
|
|
|
|
FILE* m_pFile;
|
|
int m_hFile;
|
|
bitstream_t* m_pbs;
|
|
|
|
std::string m_strName;
|
|
mode_t m_mode;
|
|
|
|
Header m_header;
|
|
VectorSyncFrame m_vSyncFrame;
|
|
|
|
__int64 m_fileSize;
|
|
__int64 m_fileOffset;
|
|
};
|
|
|
|
} // namespace AC3
|
|
|
|
#endif // AC3_HPP
|