Datasets:
shibing624
/
source_code

Dataset card Data Studio Files Community
2
text
stringlengths
0
2.2M
if (ver != 0 && ver != (int) 0xa2805140)
break;
}
else if (type == chunkName ("COMM"))
{
hasGotType = true;
numChannels = (unsigned int) input->readShortBigEndian();
lengthInSamples = input->readIntBigEndian();
bitsPerSample = (unsigned int) input->readShortBigEndian();
bytesPerFrame = (int) ((numChannels * bitsPerSample) >> 3);
unsigned char sampleRateBytes[10];
input->read (sampleRateBytes, 10);
const int byte0 = sampleRateBytes[0];
if ((byte0 & 0x80) != 0
|| byte0 <= 0x3F || byte0 > 0x40
|| (byte0 == 0x40 && sampleRateBytes[1] > 0x1C))
break;
auto sampRate = ByteOrder::bigEndianInt (sampleRateBytes + 2);
sampRate >>= (16414 - ByteOrder::bigEndianShort (sampleRateBytes));
sampleRate = (int) sampRate;
if (length <= 18)
{
// some types don't have a chunk large enough to include a compression
// type, so assume it's just big-endian pcm
littleEndian = false;
}
else
{
auto compType = input->readInt();
if (compType == chunkName ("NONE") || compType == chunkName ("twos"))
{
littleEndian = false;
}
else if (compType == chunkName ("sowt"))
{
littleEndian = true;
}
else if (compType == chunkName ("fl32") || compType == chunkName ("FL32"))
{
littleEndian = false;
usesFloatingPointData = true;
}
else
{
sampleRate = 0;
break;
}
}
}
else if (type == chunkName ("SSND"))
{
hasGotData = true;
auto offset = input->readIntBigEndian();
dataChunkStart = input->getPosition() + 4 + offset;
lengthInSamples = (bytesPerFrame > 0) ? jmin (lengthInSamples, ((int64) length) / (int64) bytesPerFrame) : 0;
}
else if (type == chunkName ("MARK"))
{
auto numCues = (uint16) input->readShortBigEndian();
// these two are always the same for AIFF-read files
metadataValuesMap.emplace ("NumCuePoints", String (numCues));
metadataValuesMap.emplace ("NumCueLabels", String (numCues));
for (uint16 i = 0; i < numCues; ++i)
{
auto identifier = (uint16) input->readShortBigEndian();
auto offset = (uint32) input->readIntBigEndian();
auto stringLength = (uint8) input->readByte();
MemoryBlock textBlock;
input->readIntoMemoryBlock (textBlock, stringLength);
// if the stringLength is even then read one more byte as the
// string needs to be an even number of bytes INCLUDING the
// leading length character in the pascal string
if ((stringLength & 1) == 0)
input->readByte();
auto prefixCue = "Cue" + String (i);
metadataValuesMap.emplace (prefixCue + "Identifier", String (identifier));
metadataValuesMap.emplace (prefixCue + "Offset", String (offset));
auto prefixLabel = "CueLabel" + String (i);
metadataValuesMap.emplace (prefixLabel + "Identifier", String (identifier));
metadataValuesMap.emplace (prefixLabel + "Text", textBlock.toString());
}
}
else if (type == chunkName ("COMT"))
{
auto numNotes = (uint16) input->readShortBigEndian();
metadataValuesMap.emplace ("NumCueNotes", String (numNotes));