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Вот такой код (по идее который должен компилиться): | Код |
#include <fstream>
#include <iostream>
#include <string>
#include <stdio.h>
using namespace std;
class WavFileForIO
{
/*
WAV File Specification
FROM http://ccrma.stanford.edu/courses/422/projects/WaveFormat/
The canonical WAVE format starts with the RIFF header:
0 4 ChunkID Contains the letters "RIFF" in ASCII form
(0x52494646 big-endian form).
4 4 ChunkSize 36 + SubChunk2Size, or more precisely:
4 + (8 + SubChunk1Size) + (8 + SubChunk2Size)
This is the size of the rest of the chunk
following this number. This is the size of the
entire file in bytes minus 8 bytes for the
two fields not included in this count:
ChunkID and ChunkSize.
8 4 Format Contains the letters "WAVE"
(0x57415645 big-endian form).
The "WAVE" format consists of two subchunks: "fmt " and "data":
The "fmt " subchunk describes the sound data's format:
12 4 Subchunk1ID Contains the letters "fmt "
(0x666d7420 big-endian form).
16 4 Subchunk1Size 16 for PCM. This is the size of the
rest of the Subchunk which follows this number.
20 2 AudioFormat PCM = 1 (i.e. Linear quantization)
Values other than 1 indicate some
form of compression.
22 2 NumChannels Mono = 1, Stereo = 2, etc.
24 4 SampleRate 8000, 44100, etc.
28 4 ByteRate == SampleRate * NumChannels * BitsPerSample/8
32 2 BlockAlign == NumChannels * BitsPerSample/8
The number of bytes for one sample including
all channels. I wonder what happens when
this number isn't an integer?
34 2 BitsPerSample 8 bits = 8, 16 bits = 16, etc.
The "data" subchunk contains the size of the data and the actual sound:
36 4 Subchunk2ID Contains the letters "data"
(0x64617461 big-endian form).
40 4 Subchunk2Size == NumSamples * NumChannels * BitsPerSample/8
This is the number of bytes in the data.
You can also think of this as the size
of the read of the subchunk following this
number.
44 * Data The actual sound data.
*/
private:
char* myPath;
int myChunkSize;
int mySubChunk1Size;
short myFormat;
short myChannels;
int mySampleRate;
int myByteRate;
short myBlockAlign;
short myBitsPerSample;
int myDataSize;
public:
// I made this public so that you can toss whatever you want in here
// maybe a recorded buffer, maybe just whatever you want
char* myData;
// get/set for the Path property
char* getPath()
{
return myPath;
}
void setPath(char* newPath)
{
myPath = new char[200];
//strcpy(myPath, newPath);
myPath = newPath;
}
~WavFileForIO()
{
delete myPath;
myChunkSize = NULL;
mySubChunk1Size = NULL;
myFormat = NULL;
myChannels = NULL;
mySampleRate = NULL;
myByteRate = NULL;
myBlockAlign = NULL;
myBitsPerSample = NULL;
myDataSize = NULL;
}
// empty constructor
WavFileForIO()
{
myPath = new char[200];
}
// constructor takes a wav path
WavFileForIO(char* tmpPath)
{
myPath = new char[200];
//strcpy(myPath, tmpPath);
myPath = tmpPath;
read();
}
// read a wav file into this class
bool read()
{
ifstream inFile( myPath, ios::in | ios::binary);
//printf("Reading wav file...\n"); // for debugging only
inFile.seekg(4, ios::beg);
inFile.read( (char*) &myChunkSize, 4 ); // read the ChunkSize
inFile.seekg(16, ios::beg);
inFile.read( (char*) &mySubChunk1Size, 4 ); // read the SubChunk1Size
//inFile.seekg(20, ios::beg);
inFile.read( (char*) &myFormat, sizeof(short) ); // read the file format. This should be 1 for PCM
//inFile.seekg(22, ios::beg);
inFile.read( (char*) &myChannels, sizeof(short) ); // read the # of channels (1 or 2)
//inFile.seekg(24, ios::beg);
inFile.read( (char*) &mySampleRate, sizeof(int) ); // read the samplerate
//inFile.seekg(28, ios::beg);
inFile.read( (char*) &myByteRate, sizeof(int) ); // read the byterate
//inFile.seekg(32, ios::beg);
inFile.read( (char*) &myBlockAlign, sizeof(short) ); // read the blockalign
//inFile.seekg(34, ios::beg);
inFile.read( (char*) &myBitsPerSample, sizeof(short) ); // read the bitspersample
inFile.seekg(40, ios::beg);
inFile.read( (char*) &myDataSize, sizeof(int) ); // read the size of the data
// read the data chunk
myData = new char[myDataSize];
inFile.seekg(44, ios::beg);
inFile.read(myData, myDataSize);
inFile.close(); // close the input file
return true; // this should probably be something more descriptive
}
// write out the wav file
bool save()
{
fstream myFile (myPath, ios::out | ios::binary);
// write the wav file per the wav file format
myFile.seekp (0, ios::beg);
myFile.write ("RIFF", 4);
myFile.write ((char*) &myChunkSize, 4);
myFile.write ("WAVE", 4);
myFile.write ("fmt ", 4);
myFile.write ((char*) &mySubChunk1Size, 4);
myFile.write ((char*) &myFormat, 2);
myFile.write ((char*) &myChannels, 2);
myFile.write ((char*) &mySampleRate, 4);
myFile.write ((char*) &myByteRate, 4);
myFile.write ((char*) &myBlockAlign, 2);
myFile.write ((char*) &myBitsPerSample, 2);
myFile.write ("data", 4);
myFile.write ((char*) &myDataSize, 4);
myFile.write (myData, myDataSize);
return true;
}
// return a printable summary of the wav file
char *getSummary()
{
char *summary = new char[250];
sprintf(summary, " Format: %d\n Channels: %d\n SampleRate: %d\n ByteRate: %d\n BlockAlign: %d\n BitsPerSample: %d\n DataSize: %d\n", myFormat, myChannels, mySampleRate, myByteRate, myBlockAlign, myBitsPerSample, myDataSize);
return summary;
}
};
int main( int argc, char *argv[] )
{
// make sure that an argument was passed in
if ( argc != 2 )
{
cout<<"usage: "<< argv[0] <<" <filename>\n";
return 0;
}
// open the wav file
char *path = new char[50];
//strcpy(path, argv[1]);
path = argv[1];
WavFileForIO *myWav = new WavFileForIO(path);
// print a summary of the wav file
char *summary = myWav->getSummary();
printf("Summary:\n%s", summary);
// write the summary back out
//strcpy(path, "testout.wav");
myWav->setPath("testout.wav");
myWav->save();
// collect the garbage
delete summary;
delete path;
delete myWav;
return 0;
}
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Но не компилится.  Выдавая вот такие ошибки: | Код |
01:18:06 waveIO $ gcc wavIO.cpp
wavIO.cpp: In function 'int main(int, char**)':
wavIO.cpp:215: warning: deprecated conversion from string constant to 'char*'
/tmp/cclKyqgc.o: In function `__static_initialization_and_destruction_0(int, int)':
wavIO.cpp:(.text+0x23): undefined reference to `std::ios_base::Init::Init()'
wavIO.cpp:(.text+0x28): undefined reference to `std::ios_base::Init::~Init()'
/tmp/cclKyqgc.o: In function `main':
wavIO.cpp:(.text+0x77): undefined reference to `std::cout'
wavIO.cpp:(.text+0x7c): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)'
wavIO.cpp:(.text+0x87): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)'
wavIO.cpp:(.text+0x94): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)'
wavIO.cpp:(.text+0xaa): undefined reference to `operator new[](unsigned long)'
wavIO.cpp:(.text+0xc7): undefined reference to `operator new(unsigned long)'
wavIO.cpp:(.text+0x120): undefined reference to `operator delete(void*)'
wavIO.cpp:(.text+0x129): undefined reference to `operator delete(void*)'
wavIO.cpp:(.text+0x14e): undefined reference to `operator delete(void*)'
wavIO.cpp:(.text+0x170): undefined reference to `operator delete(void*)'
/tmp/cclKyqgc.o: In function `WavFileForIO::setPath(char*)':
wavIO.cpp:(.text._ZN12WavFileForIO7setPathEPc[WavFileForIO::setPath(char*)]+0x16): undefined reference to `operator new[](unsigned long)'
/tmp/cclKyqgc.o: In function `WavFileForIO::~WavFileForIO()':
wavIO.cpp:(.text._ZN12WavFileForIOD1Ev[WavFileForIO::~WavFileForIO()]+0x14): undefined reference to `operator delete(void*)'
/tmp/cclKyqgc.o: In function `WavFileForIO::read()':
wavIO.cpp:(.text._ZN12WavFileForIO4readEv[WavFileForIO::read()]+0x38): undefined reference to `std::basic_ifstream<char, std::char_traits<char> >::basic_ifstream(char const*, std::_Ios_Openmode)'
wavIO.cpp:(.text._ZN12WavFileForIO4readEv[WavFileForIO::read()]+0x4e): undefined reference to `std::basic_istream<char, std::char_traits<char> >::seekg(long, std::_Ios_Seekdir)'
wavIO.cpp:(.text._ZN12WavFileForIO4readEv[WavFileForIO::read()]+0x6d): undefined reference to `std::basic_istream<char, std::char_traits<char> >::read(char*, long)'
wavIO.cpp:(.text._ZN12WavFileForIO4readEv[WavFileForIO::read()]+0x83): undefined reference to `std::basic_istream<char, std::char_traits<char> >::seekg(long, std::_Ios_Seekdir)'
wavIO.cpp:(.text._ZN12WavFileForIO4readEv[WavFileForIO::read()]+0xa2): undefined reference to `std::basic_istream<char, std::char_traits<char> >::read(char*, long)'
wavIO.cpp:(.text._ZN12WavFileForIO4readEv[WavFileForIO::read()]+0xc1): undefined reference to `std::basic_istream<char, std::char_traits<char> >::read(char*, long)'
wavIO.cpp:(.text._ZN12WavFileForIO4readEv[WavFileForIO::read()]+0xe0): undefined reference to `std::basic_istream<char, std::char_traits<char> >::read(char*, long)'
wavIO.cpp:(.text._ZN12WavFileForIO4readEv[WavFileForIO::read()]+0xff): undefined reference to `std::basic_istream<char, std::char_traits<char> >::read(char*, long)'
wavIO.cpp:(.text._ZN12WavFileForIO4readEv[WavFileForIO::read()]+0x11e): undefined reference to `std::basic_istream<char, std::char_traits<char> >::read(char*, long)'
/tmp/cclKyqgc.o:wavIO.cpp:(.text._ZN12WavFileForIO4readEv[WavFileForIO::read()]+0x13d): more undefined references to `std::basic_istream<char, std::char_traits<char> >::read(char*, long)' follow
/tmp/cclKyqgc.o: In function `WavFileForIO::read()':
wavIO.cpp:(.text._ZN12WavFileForIO4readEv[WavFileForIO::read()]+0x172): undefined reference to `std::basic_istream<char, std::char_traits<char> >::seekg(long, std::_Ios_Seekdir)'
wavIO.cpp:(.text._ZN12WavFileForIO4readEv[WavFileForIO::read()]+0x191): undefined reference to `std::basic_istream<char, std::char_traits<char> >::read(char*, long)'
wavIO.cpp:(.text._ZN12WavFileForIO4readEv[WavFileForIO::read()]+0x1a3): undefined reference to `operator new[](unsigned long)'
wavIO.cpp:(.text._ZN12WavFileForIO4readEv[WavFileForIO::read()]+0x1c7): undefined reference to `std::basic_istream<char, std::char_traits<char> >::seekg(long, std::_Ios_Seekdir)'
wavIO.cpp:(.text._ZN12WavFileForIO4readEv[WavFileForIO::read()]+0x1eb): undefined reference to `std::basic_istream<char, std::char_traits<char> >::read(char*, long)'
wavIO.cpp:(.text._ZN12WavFileForIO4readEv[WavFileForIO::read()]+0x1f7): undefined reference to `std::basic_ifstream<char, std::char_traits<char> >::close()'
wavIO.cpp:(.text._ZN12WavFileForIO4readEv[WavFileForIO::read()]+0x208): undefined reference to `std::basic_ifstream<char, std::char_traits<char> >::~basic_ifstream()'
wavIO.cpp:(.text._ZN12WavFileForIO4readEv[WavFileForIO::read()]+0x233): undefined reference to `std::basic_ifstream<char, std::char_traits<char> >::~basic_ifstream()'
/tmp/cclKyqgc.o: In function `WavFileForIO::WavFileForIO(char*)':
wavIO.cpp:(.text._ZN12WavFileForIOC1EPc[WavFileForIO::WavFileForIO(char*)]+0x16): undefined reference to `operator new[](unsigned long)'
/tmp/cclKyqgc.o: In function `WavFileForIO::getSummary()':
wavIO.cpp:(.text._ZN12WavFileForIO10getSummaryEv[WavFileForIO::getSummary()]+0x12): undefined reference to `operator new[](unsigned long)'
/tmp/cclKyqgc.o: In function `WavFileForIO::save()':
wavIO.cpp:(.text._ZN12WavFileForIO4saveEv[WavFileForIO::save()]+0x38): undefined reference to `std::basic_fstream<char, std::char_traits<char> >::basic_fstream(char const*, std::_Ios_Openmode)'
wavIO.cpp:(.text._ZN12WavFileForIO4saveEv[WavFileForIO::save()]+0x52): undefined reference to `std::basic_ostream<char, std::char_traits<char> >::seekp(long, std::_Ios_Seekdir)'
wavIO.cpp:(.text._ZN12WavFileForIO4saveEv[WavFileForIO::save()]+0x6c): undefined reference to `std::basic_ostream<char, std::char_traits<char> >::write(char const*, long)'
wavIO.cpp:(.text._ZN12WavFileForIO4saveEv[WavFileForIO::save()]+0x8f): undefined reference to `std::basic_ostream<char, std::char_traits<char> >::write(char const*, long)'
wavIO.cpp:(.text._ZN12WavFileForIO4saveEv[WavFileForIO::save()]+0xa9): undefined reference to `std::basic_ostream<char, std::char_traits<char> >::write(char const*, long)'
wavIO.cpp:(.text._ZN12WavFileForIO4saveEv[WavFileForIO::save()]+0xc3): undefined reference to `std::basic_ostream<char, std::char_traits<char> >::write(char const*, long)'
wavIO.cpp:(.text._ZN12WavFileForIO4saveEv[WavFileForIO::save()]+0xe6): undefined reference to `std::basic_ostream<char, std::char_traits<char> >::write(char const*, long)'
/tmp/cclKyqgc.o:wavIO.cpp:(.text._ZN12WavFileForIO4saveEv[WavFileForIO::save()]+0x109): more undefined references to `std::basic_ostream<char, std::char_traits<char> >::write(char const*, long)' follow
/tmp/cclKyqgc.o: In function `WavFileForIO::save()':
wavIO.cpp:(.text._ZN12WavFileForIO4saveEv[WavFileForIO::save()]+0x22e): undefined reference to `std::basic_fstream<char, std::char_traits<char> >::~basic_fstream()'
wavIO.cpp:(.text._ZN12WavFileForIO4saveEv[WavFileForIO::save()]+0x259): undefined reference to `std::basic_fstream<char, std::char_traits<char> >::~basic_fstream()'
/tmp/cclKyqgc.o:(.eh_frame+0x13): undefined reference to `__gxx_personality_v0'
collect2: ld returned 1 exit status
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Прога не компилится. В чём ошибки? ругается на "std::"... 
Загрузка ...
