int
MidiFile::read(const char *fileName) {
if (fileName == NULL)
return 1;
setFileName(fileName);
_target = openFile(fileName);
if (!_target)
return 1;
readFileHeader();
setType();
setTrackCount();
setBPM();
for (int i = 0; i < _fileHeader._tracks; i++) {
_curTrack = i;
readTrack();
printContour();
}
fclose(_target);
return 0;
}
void WaveAudioEssenceReader::initialise(Reader* reader) throw(Exception)
{
EssenceReader::initialise(reader);
reader->setPosition(0, Reader::BEGIN);
RIFFReader riffReader(reader);
if (riffReader.descend() == RIFFChunk::fourCC('R', 'I', 'F', 'F'))
{
// Check that this is a WAVE file
if (riffReader.getCurrentChunk()->getType() !=
RIFFChunk::fourCC('W', 'A', 'V', 'E'))
{
error(RIFF_ERROR_NotWAVE);
}
UInt32 fourcc;
while ((fourcc = riffReader.descend()) != 0)
{
if (fourcc == RIFFChunk::fourCC('f', 'm', 't', ' '))
{
// Get the 'fmt ' chunk
if (_fmtChunk != 0)
{
delete _fmtChunk;
}
_fmtChunk = new fmt_ck;
riffReader.read(
(UInt8*) _fmtChunk,
sizeof(fmt_ck));
}
else if (fourcc == RIFFChunk::fourCC('b', 'e', 'x', 't'))
{
// Get the 'bext' chunk
if (_bextBuffer != 0)
{
delete _bextBuffer;
}
_bextBuffer = new UInt8[riffReader.getCurrentChunk()->getSize()];
_bextChunk = reinterpret_cast<bext_ck*>(_bextBuffer);
riffReader.read(
_bextBuffer,
riffReader.getCurrentChunk()->getSize());
}
else if (fourcc == RIFFChunk::fourCC('d', 'a', 't', 'a'))
{
// Note the position of the expected 'data' chunk
_dataOffset = reader->getPosition();
_dataLength = riffReader.getCurrentChunk()->getSize();
}
riffReader.ascend();
}
if (_fmtChunk == 0)
{
error(RIFF_ERROR_MissingFMTChunk);
return;
}
else if (_dataOffset == 0)
{
error(RIFF_ERROR_FileIsEmpty);
return;
}
}
else
{
error(RIFF_ERROR_NotRIFF);
return;
}
//UL* ulContainer = new UL(LABEL_EssenceContainerGC_AES_BWAV);
//ulContainer->setByte(15, 0x01); // Essence Element Type - Wave Frame Wrapped
//_essenceContainers.add(ulContainer);
//_ulAudio = new UL(KEY_GCSoundEssenceElement);
//_ulAudio->setByte(14, 0x01); // Essence Element Count
//_ulAudio->setByte(15, 0x01); // Essence Element Type - Wave Frame Wrapped
//_ulAudio->setByte(16, 0x01); // Essence Element Number
//getElementKeys().add(_ulAudio);
//getTrackDataDefinitions().add(new UL(LABEL_SoundEssenceTrack));
//// Configure the descriptor
//WaveAudioEssenceDescriptor* waed = static_cast<WaveAudioEssenceDescriptor*>(
// getDictionary()->createInstance(KEY_WaveAudioEssenceDescriptor));
//waed->setSampleRate(_editRate);
//waed->setEssenceContainer(*ulContainer);
//waed->setAudioSamplingRate(_fmtChunk->nSamplesPerSec);
//waed->setChannelCount(_fmtChunk->nChannels);
//waed->setQuantizationBits(_fmtChunk->wBitsPerSample);
//waed->setBlockAlign(_fmtChunk->nBlockAlign);
//waed->setAvgBps(_fmtChunk->nAvgBytesPerSec);
//_descriptor = waed;
setEditRate(_editRate);
// Exit at this point if we failed
if (_baseSampleCount == 0 || _combinedDataLength == 0)
{
return;
}
setTrackCount(1);
// Position the reader at the start of the data
reset();
}