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#include "InputFile.h"
#include <iostream.h>
InputFile::InputFile () {
fd = 0;
format = -1;
recover = false;
}
InputFile::~InputFile () {
}
// returns the file type, either WAV, MP3, OGG, etc. see input.h
int InputFile::Open (const char *pathname) {
char buf[18];
filename = pathname;
fd = open (pathname, O_RDONLY);
if (fd == -1) {
// error opening the file, no dice
return -1;
}
int bytesread = read (fd, buf, 16);
if (bytesread < 4) {
// fill is too fucking small dude
close (fd);
return -1;
}
if (!strncmp (buf, ".snd", 4))
{
//rewind the stream
if ((lseek (fd, 0, SEEK_SET)) == -1)
return -1;
return format = FORMAT_NEXT; //, bigendian = 1;
}
else if (!strncmp (buf, "dns.", 4))
{
//rewind the stream
if ((lseek (fd, 0, SEEK_SET)) == -1)
return -1;
return format = FORMAT_NEXT; //, bigendian = 0;
}
else if (!strncmp (buf, "RIFF", 4))
{
if (bytesread < 12 || strncmp (buf + 8, "WAVE", 4))
{
cout << "bad header ?" << endl;
return -1;
}
//rewind the stream
if ((lseek (fd, 0, SEEK_SET)) == -1)
return -1;
return format = FORMAT_WAVE; //, bigendian = 0;
}
else if (!strncmp (buf, "FORM", 4))
{
if (bytesread < 12 || strncmp (buf + 8, "AIFF", 4))
return -1; //goto badheader;
//rewind the stream
if ((lseek (fd, 0, SEEK_SET)) == -1)
return -1;
return format = FORMAT_AIFF; //, bigendian = 1;
}
else if (!strncmp (buf, "OggS", 4)) {
//rewind the stream
if ((lseek (fd, 0, SEEK_SET)) == -1)
return -1;
#ifdef READ_VORBIS
return format = FORMAT_VORBIS;
#else
return -1;
#endif
}
else if (!strncmp (buf, "ID3", 3))
{
//rewind the stream
if ((lseek (fd, 0, SEEK_SET)) == -1)
return -1;
#ifdef READ_MAD
return format = FORMAT_MAD;
#else
return -1;
#endif
}
else if (!strncasecmp (buf, "FLAC", 4))
{
// } else if( !strncasecmp(thefile+strlen(thefile)-4,".fla",4) ) {
//rewind the stream
if ((lseek (fd, 0, SEEK_SET)) == -1)
return -1;
#ifdef READ_FLAC
return format = FORMAT_FLAC;
#else
return -1;
#endif
}
else
{
unsigned int sync;
sync = (unsigned char) buf[0];
sync = sync << 3;
sync |= ((unsigned char) buf[1] & 0xE0) >> 5;
if (sync == 0x7FF)
{
//rewind the stream
if ((lseek (fd, 0, SEEK_SET)) == -1)
return -1;
#ifdef READ_MAD
return format = FORMAT_MAD;
#else
return -1;
#endif
}
else if (!strncasecmp
(pathname + strlen (pathname) - 4, ".mp3", 4))
{
//trust that its mp3
//rewind the stream
if ((lseek (fd, 0, SEEK_SET)) == -1)
return -1;
cout << "doesnt seem like its an mp3, but if you say so" << endl;
#ifdef READ_MAD
return format = FORMAT_MAD;
#else
return -1;
#endif
}
}
return -1;
}
int
InputFile::Close ()
{
return close (fd);
}
int
InputFile::Read (void *buf, unsigned int count)
{
return read (fd, buf, count);
}
long
InputFile::SeekSet (long offset)
{
return lseek (fd, offset, SEEK_SET);
}
long
InputFile::SeekCur (long offset)
{
return lseek (fd, offset, SEEK_CUR);
}
long
InputFile::SeekEnd (long offset)
{
return lseek (fd, offset, SEEK_END);
}
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