public void decode(BitStream in) throws AACException {
final int start = in.getPosition(); // should be 0
int type;
Element prev = null;
boolean content = true;
if (!config.getProfile().isErrorResilientProfile()) {
while (content && (type = in.readBits(3)) != ELEMENT_END) {
switch (type) {
case ELEMENT_SCE:
case ELEMENT_LFE:
LOGGER.finest("SCE");
prev = decodeSCE_LFE(in);
break;
case ELEMENT_CPE:
LOGGER.finest("CPE");
prev = decodeCPE(in);
break;
case ELEMENT_CCE:
LOGGER.finest("CCE");
decodeCCE(in);
prev = null;
break;
case ELEMENT_DSE:
LOGGER.finest("DSE");
decodeDSE(in);
prev = null;
break;
case ELEMENT_PCE:
LOGGER.finest("PCE");
decodePCE(in);
prev = null;
break;
case ELEMENT_FIL:
LOGGER.finest("FIL");
decodeFIL(in, prev);
prev = null;
break;
}
}
LOGGER.finest("END");
content = false;
prev = null;
} else {
// error resilient raw data block
switch (config.getChannelConfiguration()) {
case CHANNEL_CONFIG_MONO:
decodeSCE_LFE(in);
break;
case CHANNEL_CONFIG_STEREO:
decodeCPE(in);
break;
case CHANNEL_CONFIG_STEREO_PLUS_CENTER:
decodeSCE_LFE(in);
decodeCPE(in);
break;
case CHANNEL_CONFIG_STEREO_PLUS_CENTER_PLUS_REAR_MONO:
decodeSCE_LFE(in);
decodeCPE(in);
decodeSCE_LFE(in);
break;
case CHANNEL_CONFIG_FIVE:
decodeSCE_LFE(in);
decodeCPE(in);
decodeCPE(in);
break;
case CHANNEL_CONFIG_FIVE_PLUS_ONE:
decodeSCE_LFE(in);
decodeCPE(in);
decodeCPE(in);
decodeSCE_LFE(in);
break;
case CHANNEL_CONFIG_SEVEN_PLUS_ONE:
decodeSCE_LFE(in);
decodeCPE(in);
decodeCPE(in);
decodeCPE(in);
decodeSCE_LFE(in);
break;
default:
throw new AACException(
"unsupported channel configuration for error resilience: "
+ config.getChannelConfiguration());
}
}
in.byteAlign();
bitsRead = in.getPosition() - start;
}
