void FileRead :: open( std::string fileName, bool typeRaw, unsigned int nChannels,
StkFormat format, StkFloat rate )
{
// If another file is open, close it.
close();
// Try to open the file.
fd_ = fopen( fileName.c_str(), "rb" );
if ( !fd_ ) {
oStream_ << "FileRead::open: could not open or find file (" << fileName << ")!";
handleError( StkError::FILE_NOT_FOUND );
}
// Attempt to determine file type from header (unless RAW).
bool result = false;
if ( typeRaw )
result = getRawInfo( fileName.c_str(), nChannels, format, rate );
else {
char header[12];
if ( fread( &header, 4, 3, fd_ ) != 3 ) goto error;
if ( !strncmp( header, "RIFF", 4 ) &&
!strncmp( &header[8], "WAVE", 4 ) )
result = getWavInfo( fileName.c_str() );
else if ( !strncmp( header, ".snd", 4 ) )
result = getSndInfo( fileName.c_str() );
else if ( !strncmp( header, "FORM", 4 ) &&
( !strncmp( &header[8], "AIFF", 4 ) || !strncmp(&header[8], "AIFC", 4) ) )
result = getAifInfo( fileName.c_str() );
else {
if ( fseek( fd_, 126, SEEK_SET ) == -1 ) goto error;
if ( fread( &header, 2, 1, fd_ ) != 1 ) goto error;
if ( !strncmp( header, "MI", 2 ) ||
!strncmp( header, "IM", 2 ) )
result = getMatInfo( fileName.c_str() );
else {
oStream_ << "FileRead::open: file (" << fileName << ") format unknown.";
handleError( StkError::FILE_UNKNOWN_FORMAT );
}
}
}
// If here, we had a file type candidate but something else went wrong.
if ( result == false )
handleError( StkError::FILE_ERROR );
// Check for empty files.
if ( fileSize_ == 0 ) {
oStream_ << "FileRead::open: file (" << fileName << ") data size is zero!";
handleError( StkError::FILE_ERROR );
}
return;
error:
oStream_ << "FileRead::open: error reading file (" << fileName << ")!";
handleError( StkError::FILE_ERROR );
}
void WvIn :: openFile( std::string fileName, bool raw, bool doNormalize )
{
closeFile();
// Try to open the file.
fd_ = fopen(fileName.c_str(), "rb");
if (!fd_) {
errorString_ << "WvIn::openFile: could not open or find file (" << fileName << ")!";
handleError( StkError::FILE_NOT_FOUND );
}
unsigned long lastChannels = channels_;
unsigned long samples, lastSamples = (bufferSize_+1)*channels_;
bool result = false;
if ( raw )
result = getRawInfo( fileName.c_str() );
else {
char header[12];
if ( fread(&header, 4, 3, fd_) != 3 ) goto error;
if ( !strncmp(header, "RIFF", 4) &&
!strncmp(&header[8], "WAVE", 4) )
result = getWavInfo( fileName.c_str() );
else if ( !strncmp(header, ".snd", 4) )
result = getSndInfo( fileName.c_str() );
else if ( !strncmp(header, "FORM", 4) &&
(!strncmp(&header[8], "AIFF", 4) || !strncmp(&header[8], "AIFC", 4) ) )
result = getAifInfo( fileName.c_str() );
else {
if ( fseek(fd_, 126, SEEK_SET) == -1 ) goto error;
if ( fread(&header, 2, 1, fd_) != 1 ) goto error;
if (!strncmp(header, "MI", 2) ||
!strncmp(header, "IM", 2) )
result = getMatInfo( fileName.c_str() );
else {
errorString_ << "WvIn::openFile: file (" << fileName << ") format unknown.";
handleError( StkError::FILE_UNKNOWN_FORMAT );
}
}
}
if ( result == false )
handleError( StkError::FILE_ERROR );
if ( fileSize_ == 0 ) {
errorString_ << "WvIn::openFile: file (" << fileName << ") data size is zero!";
handleError( StkError::FILE_ERROR );
}
// Allocate new memory if necessary.
samples = (bufferSize_+1)*channels_;
if ( lastSamples < samples ) {
if ( data_ ) delete [] data_;
data_ = (StkFloat *) new StkFloat[samples];
}
if ( lastChannels < channels_ ) {
if ( lastOutputs_ ) delete [] lastOutputs_;
lastOutputs_ = (StkFloat *) new StkFloat[channels_];
}
if ( fmod(rate_, 1.0) != 0.0 ) interpolate_ = true;
chunkPointer_ = 0;
reset();
readData( 0 ); // Load file data.
if ( doNormalize ) normalize();
finished_ = false;
return;
error:
errorString_ << "WvIn::openFile: error reading file (" << fileName << ")!";
handleError( StkError::FILE_ERROR );
}
