public int atracDecodeData(int atracID, int address, int channels) {
int samples = 0;
boolean isEnded = false;
if (checkMediaEngineState()) {
if (me.getContainer() == null && atracChannel != null) {
if (requireAllAtracData) {
if (atracChannel.length() >= atracFileSize) {
requireAllAtracData = false;
if (checkMediaEngineState() && ExternalDecoder.isEnabled()) {
String decodedFile =
externalDecoder.decodeAtrac(
atracChannel, atracBufferAddress, atracFileSize, atracHash);
if (decodedFile != null) {
Modules.log.info(
"AT3+ data decoded by the external decoder (all AT3+ data retrieved).");
me.finish();
atracChannel = null;
me.init(new FileProtocolHandler(decodedFile), false, true, 0, 0);
atracEndSample = -1;
} else {
Modules.log.info(
"AT3+ data could not be decoded by the external decoder, even after retrieving all AT3+ data.");
me = null;
}
} else {
Modules.log.info(
"AT3+ data could not be decoded by the external decoder, even after retrieving all AT3+ data.");
me = null;
}
if (me == null) {
return atracDecodeData(atracID, address, channels);
}
} else {
// Fake returning 1 sample with remainFrames == 0
// to force a call to sceAtracAddStreamData.
samples = 1;
Memory.getInstance().memset(address, (byte) 0, samples * bytesPerSample);
}
} else if (atracChannel.length() >= getAtracChannelStartLength()
|| atracChannel.length() >= atracFileSize) {
me.init(atracChannel, false, true, 0, 0);
} else {
// Fake returning 1 sample with remainFrames == 0
// to force a call to sceAtracAddStreamData.
samples = 1;
Memory.getInstance().memset(address, (byte) 0, samples * bytesPerSample);
}
}
setChannels(channels);
if (me.stepAudio(atracMaxSamples * bytesPerSample, channels)) {
samples = copySamplesToMem(address);
}
if (samples == 0) {
isEnded = true;
}
} else if (decodedStream != null) {
try {
int length = decodedStream.read(atracDecodeBuffer);
if (length > 0) {
samples = length / 4;
Memory.getInstance()
.copyToMemory(address, ByteBuffer.wrap(atracDecodeBuffer, 0, length), length);
long restLength = decodedStream.length() - decodedStream.getFilePointer();
if (restLength <= 0) {
isEnded = true;
}
} else {
isEnded = true;
}
} catch (IOException e) {
Modules.log.warn(e);
}
} else {
samples = -1;
isEnded = true;
}
if (isEnded) {
atracEnd = 1;
} else {
atracEnd = 0;
}
return samples;
}
public void atracSetData(
int atracID, int codecType, int address, int length, int atracFileSize, int atracHash) {
this.atracFileSize = atracFileSize;
this.atracBufferAddress = address;
this.atracHash = atracHash;
id = generateID(address, length, atracFileSize);
closeStreams();
atracEndSample = -1;
requireAllAtracData = false;
int memoryCodecType = sceAtrac3plus.getCodecType(address);
if (memoryCodecType != codecType && memoryCodecType != 0) {
Modules.log.info(
String.format(
"Different CodecType received %d != %d, assuming %d",
codecType, memoryCodecType, memoryCodecType));
codecType = memoryCodecType;
}
if (codecType == 0x00001001) {
Modules.log.info("Decodable AT3 data detected.");
if (checkMediaEngineState()) {
me.finish();
atracChannel = new PacketChannel();
atracChannel.setTotalStreamSize(atracFileSize);
atracChannel.setFarRewindAllowed(true);
atracChannel.write(address, length);
// Defer the initialization of the MediaEngine until atracDecodeData()
// to ensure we have enough data into the channel.
atracEndSample = 0;
return;
}
} else if (codecType == 0x00001000) {
if (checkMediaEngineState() && ExternalDecoder.isEnabled()) {
String decodedFile =
externalDecoder.decodeAtrac(address, length, atracFileSize, atracHash, this);
if (decodedFile != null) {
Modules.log.info("AT3+ data decoded by the external decoder.");
me.finish();
atracChannel = null;
me.init(new FileProtocolHandler(decodedFile), false, true, 0, 0);
atracEndSample = -1;
return;
} else if (requireAllAtracData) {
// The external decoder requires all the atrac data
// before it can try to decode the atrac.
me.finish();
atracChannel = new PacketChannel();
atracChannel.setTotalStreamSize(atracFileSize);
atracChannel.write(address, length);
return;
}
Modules.log.info("AT3+ data could not be decoded by the external decoder.");
} else {
Modules.log.info("Undecodable AT3+ data detected.");
}
}
me = null;
File decodedFile = new File(getCompleteFileName(decodedAtracSuffix));
if (!decodedFile.canRead()) {
// Try to read the decoded file using an alternate file name,
// without HashCode. These files can be generated by external tools
// decoding the Atrac3+ files. These tools can't generate the HashCode.
//
// Use the following alternate file name scheme:
// Atrac-SSSSSSSS-NNNNNNNN-DDDDDDDD.at3.decoded
// where SSSSSSSS is the file size in Hex
// NNNNNNNN is the number of samples in Hex found in the "fact" Chunk
// DDDDDDDD are the first 32-bit in Hex found in the "data" Chunk
int numberOfSamples = 0;
int data = 0;
// Scan the Atrac data for NNNNNNNN and DDDDDDDD values
Memory mem = Memory.getInstance();
int scanAddress = address + 12;
int endScanAddress = address + length;
while (scanAddress < endScanAddress) {
int chunkHeader = mem.read32(scanAddress);
int chunkSize = mem.read32(scanAddress + 4);
if (chunkHeader == waveFactChunkHeader) {
numberOfSamples = mem.read32(scanAddress + 8);
} else if (chunkHeader == waveDataChunkHeader) {
data = mem.read32(scanAddress + 8);
break;
}
// Go to the next Chunk
scanAddress += chunkSize + 8;
}
File alternateDecodedFile =
new File(
String.format(
"%sAtrac-%08X-%08X-%08X%s",
getBaseDirectory(), atracFileSize, numberOfSamples, data, decodedAtracSuffix));
if (alternateDecodedFile.canRead()) {
decodedFile = alternateDecodedFile;
}
}
File atracFile = new File(getCompleteFileName(atracSuffix));
if (decodedFile.canRead()) {
try {
decodedStream = new RandomAccessFile(decodedFile, "r");
atracEndSample = (int) (decodedFile.length() / 4);
} catch (FileNotFoundException e) {
// Decoded file should already be present
Modules.log.warn(e);
}
} else if (atracFile.canRead() && atracFile.length() == atracFileSize) {
// Atrac file is already written, no need to write it again
} else if (sceAtrac3plus.isEnableConnector()) {
commandFileDirty = true;
displayInstructions();
new File(getBaseDirectory()).mkdirs();
try {
atracStream = new FileOutputStream(getCompleteFileName(atracSuffix));
byte[] buffer = new byte[length];
IMemoryReader memoryReader = MemoryReader.getMemoryReader(address, length, 1);
for (int i = 0; i < length; i++) {
buffer[i] = (byte) memoryReader.readNext();
}
atracStream.write(buffer);
} catch (IOException e) {
Modules.log.warn(e);
}
generateCommandFile();
}
}