private void readFromFilePath_ReadChunks_Data(DataInputStreamLittleEndian reader)
throws IOException {
byte[] data = new byte[4];
reader.read(data);
int subchunk2Size = reader.readInt();
byte[] samplesForChannelsMixedAsBytes = new byte[subchunk2Size];
reader.read(samplesForChannelsMixedAsBytes);
Sample[][] samplesForChannels =
Sample.buildManyFromBytes(samplingInfo, samplesForChannelsMixedAsBytes);
this.samplesForChannels = samplesForChannels;
}
private void readFromFilePath_ReadChunks(DataInputStreamLittleEndian reader) throws IOException {
byte[] riff = new byte[4];
reader.read(riff);
int numberOfBytesInFile = reader.readInt();
byte[] wave = new byte[4];
reader.read(wave);
this.readFromFilePath_ReadChunks_Format(reader);
this.readFromFilePath_ReadChunks_Data(reader);
}
public static WavFile readFromFilePath(
String filePathToReadFrom, boolean[] key1, boolean[] key2) {
WavFile returnValue = new WavFile(filePathToReadFrom, null, null);
key = key1;
IV = key2;
try {
DataInputStream dataInputStream =
new DataInputStream(new BufferedInputStream(new FileInputStream(filePathToReadFrom)));
DataInputStreamLittleEndian reader;
reader = new DataInputStreamLittleEndian(dataInputStream);
returnValue.readFromFilePath_ReadChunks(reader);
reader.close();
} catch (IOException ex) {
ex.printStackTrace();
}
return returnValue;
}
private void readFromFilePath_ReadChunks_Format(DataInputStreamLittleEndian reader)
throws IOException {
byte[] fmt = new byte[4];
reader.read(fmt);
int chunkSizeInBytes = reader.readInt();
Short formatCode = reader.readShort();
Short numberOfChannels = reader.readShort();
int samplesPerSecond = reader.readInt();
int bytesPerSecond = reader.readInt();
Short bytesPerSampleMaybe = reader.readShort();
Short bitsPerSample = reader.readShort();
SamplingInfo samplingInfo =
new SamplingInfo(
"[from file]",
chunkSizeInBytes,
formatCode,
numberOfChannels,
samplesPerSecond,
bitsPerSample);
this.samplingInfo = samplingInfo;
}