/**
* Reads a chunk and puts information into the superchunk's Exif property.
*
* @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;
if (bytesLeft != 4) {
info.setMessage(new ErrorMessage("Incorrect length for Exif Version Chunk"));
info.setWellFormed(false);
return false;
}
byte[] buf = new byte[4];
ModuleBase.readByteBuf(_dstream, buf, module);
String txt = new String(buf);
module.getExifInfo().setExifVersion(txt);
return true;
}
/**
* 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;
}
