/**
* Reads a chunk and puts an Instrument property into the RepInfo object.
*
* @return <code>false</code> if the chunk is structurally invalid, otherwise <code>true</code>
*/
public boolean readChunk(RepInfo info) throws IOException {
AiffModule module = (AiffModule) _module;
int baseNote = ModuleBase.readUnsignedByte(_dstream, module);
int detune = ModuleBase.readSignedByte(_dstream, module);
int lowNote = ModuleBase.readUnsignedByte(_dstream, module);
int highNote = ModuleBase.readUnsignedByte(_dstream, module);
int lowVelocity = ModuleBase.readUnsignedByte(_dstream, module);
int highVelocity = ModuleBase.readUnsignedByte(_dstream, module);
int gain = module.readSignedShort(_dstream);
Loop sustainLoop = readLoop(module);
Loop releaseLoop = readLoop(module);
List propList = new ArrayList(9);
propList.add(new Property("BaseNote", PropertyType.INTEGER, new Integer(baseNote)));
propList.add(new Property("Detune", PropertyType.INTEGER, new Integer(detune)));
propList.add(new Property("LowNote", PropertyType.INTEGER, new Integer(lowNote)));
propList.add(new Property("HighNote", PropertyType.INTEGER, new Integer(highNote)));
propList.add(new Property("LowVelocity", PropertyType.INTEGER, new Integer(lowVelocity)));
propList.add(new Property("HighVelocity", PropertyType.INTEGER, new Integer(highVelocity)));
propList.add(new Property("Gain", PropertyType.INTEGER, new Integer(gain)));
propList.add(sustainLoop.loopProp("SustainLoop"));
propList.add(releaseLoop.loopProp("ReleaseLoop"));
module.addAiffProperty(
new Property("Instrument", PropertyType.PROPERTY, PropertyArity.LIST, propList));
return true;
}
/** Initializes the state of the module for parsing. */
protected void initParse() {
super.initParse();
_propList = new LinkedList();
_notes = new LinkedList();
_labels = new LinkedList();
_labeledText = new LinkedList();
_samples = new LinkedList();
firstSampleOffsetMarked = false;
numSamples = 0;
_metadata = new Property("WAVEMetadata", PropertyType.PROPERTY, PropertyArity.LIST, _propList);
_aesMetadata = new AESAudioMetadata();
_aesMetadata.setByteOrder(AESAudioMetadata.LITTLE_ENDIAN);
_aesMetadata.setAnalogDigitalFlag("FILE_DIGITAL");
_aesMetadata.setFormat("WAVE");
_aesMetadata.setUse("OTHER", "JHOVE_validation");
_aesMetadata.setDirection("NONE");
_propList.add(new Property("AESAudioMetadata", PropertyType.AESAUDIOMETADATA, _aesMetadata));
// Most chunk types are allowed to occur only once,
// and a few must occur exactly once.
// Clear flags for whether they have been seen.
formatChunkSeen = false;
dataChunkSeen = false;
instrumentChunkSeen = false;
cartChunkSeen = false;
mpegChunkSeen = false;
broadcastExtChunkSeen = false;
peakChunkSeen = false;
linkChunkSeen = false;
cueChunkSeen = false;
// Initialize profile flags
flagPCMWaveFormat = false;
flagWaveFormatEx = false;
flagWaveFormatExtensible = false;
flagBroadcastWave = false;
}
/**
* Reads a chunk and puts a BroadcastAudioExtension Property into the RepInfo object.
*
* @return <code>false</code> if the chunk is structurally invalid, otherwise <code>true</code>
*/
public boolean readChunk(RepInfo info) throws IOException {
WaveModule module = (WaveModule) _module;
byte[] buf256 = new byte[256];
ModuleBase.readByteBuf(_dstream, buf256, module);
String description = byteBufString(buf256);
byte[] buf32 = new byte[32];
ModuleBase.readByteBuf(_dstream, buf32, module);
String originator = byteBufString(buf32);
ModuleBase.readByteBuf(_dstream, buf32, module);
String originatorRef = byteBufString(buf32);
byte[] buf10 = new byte[10];
ModuleBase.readByteBuf(_dstream, buf10, module);
String originationDate = byteBufString(buf10);
byte[] buf8 = new byte[8];
ModuleBase.readByteBuf(_dstream, buf8, module);
String originationTime = byteBufString(buf8);
// TimeReference is stored as a 64-bit little-endian
// number -- I think
long timeReference = module.readSignedLong(_dstream);
int version = module.readUnsignedShort(_dstream);
module.setBroadcastVersion(version);
byte[] smtpe_umid = new byte[64];
ModuleBase.readByteBuf(_dstream, smtpe_umid, module);
module.skipBytes(_dstream, 190, module);
String codingHistory = "";
if (bytesLeft > 602) {
byte[] bufCodingHistory = new byte[(int) bytesLeft - 602];
ModuleBase.readByteBuf(_dstream, bufCodingHistory, module);
codingHistory = byteBufString(bufCodingHistory);
}
// Whew -- we've read the whole thing. Now make that into a
// list of Properties.
List plist = new ArrayList(20);
if (description.length() > 0) {
plist.add(new Property("Description", PropertyType.STRING, description));
}
if (originator.length() > 0) {
plist.add(new Property("Originator", PropertyType.STRING, originator));
}
if (originationDate.length() > 0) {
plist.add(new Property("OriginationDate", PropertyType.STRING, originationDate));
}
if (originationTime.length() > 0) {
plist.add(new Property("OriginationTime", PropertyType.STRING, originationTime));
}
plist.add(new Property("TimeReference", PropertyType.LONG, new Long(timeReference)));
plist.add(new Property("Version", PropertyType.INTEGER, new Integer(version)));
plist.add(new Property("UMID", PropertyType.BYTE, PropertyArity.ARRAY, smtpe_umid));
if (codingHistory.length() > 0) {
plist.add(new Property("CodingHistory", PropertyType.STRING, codingHistory));
}
module.addWaveProperty(
new Property("BroadcastAudioExtension", PropertyType.PROPERTY, PropertyArity.LIST, plist));
// set time reference in AES metadata set @author David Ackerman
AESAudioMetadata aes = module.getAESMetadata();
aes.setStartTime(timeReference);
return true;
}
