public FlakeReader(Stream IO)
{
if (IO == null)
{
throw new ArgumentNullException("IO");
}
_IO = IO;
crc8 = new Crc8();
_framesBuffer = new byte[0x20000];
decode_metadata();
frame = new FlacFrame(PCM.ChannelCount);
framereader = new BitReader();
//max_frame_size = 16 + ((Flake.MAX_BLOCKSIZE * PCM.BitsPerSample * PCM.ChannelCount + 1) + 7) >> 3);
if (((int)max_frame_size * PCM.BitsPerSample * PCM.ChannelCount * 2 >> 3) > _framesBuffer.Length)
{
byte[] temp = _framesBuffer;
_framesBuffer = new byte[((int)max_frame_size * PCM.BitsPerSample * PCM.ChannelCount * 2 >> 3)];
if (_framesBufferLength > 0)
Array.Copy(temp, _framesBufferOffset, _framesBuffer, 0, _framesBufferLength);
_framesBufferOffset = 0;
}
_samplesInBuffer = 0;
if (PCM.BitsPerSample != 16 && PCM.BitsPerSample != 24)
throw new Exception("invalid flac file");
samplesBuffer = new int[Flake.MAX_BLOCKSIZE * PCM.ChannelCount];
residualBuffer = new int[Flake.MAX_BLOCKSIZE * PCM.ChannelCount];
}
public FlakeReader(string path, Stream IO)
{
_path = path;
_IO = IO != null ? IO : new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read, 0x10000);
crc8 = new Crc8();
crc16 = new Crc16();
_framesBuffer = new byte[0x20000];
decode_metadata();
frame = new FlacFrame(PCM.ChannelCount);
framereader = new BitReader();
//max_frame_size = 16 + ((Flake.MAX_BLOCKSIZE * PCM.BitsPerSample * PCM.ChannelCount + 1) + 7) >> 3);
if (((int)max_frame_size * PCM.BitsPerSample * PCM.ChannelCount * 2 >> 3) > _framesBuffer.Length)
{
byte[] temp = _framesBuffer;
_framesBuffer = new byte[((int)max_frame_size * PCM.BitsPerSample * PCM.ChannelCount * 2 >> 3)];
if (_framesBufferLength > 0)
Array.Copy(temp, _framesBufferOffset, _framesBuffer, 0, _framesBufferLength);
_framesBufferOffset = 0;
}
_samplesInBuffer = 0;
if ((PCM.BitsPerSample != 16 && PCM.BitsPerSample != 24) || PCM.ChannelCount != 2 || (PCM.SampleRate != 44100 && PCM.SampleRate != 48000))
throw new Exception("invalid flac file");
samplesBuffer = new int[Flake.MAX_BLOCKSIZE * PCM.ChannelCount];
residualBuffer = new int[Flake.MAX_BLOCKSIZE * PCM.ChannelCount];
}
public void Lte_2()
{
var crc = Crc8.GetLte();
crc.ComputeHash(Encoding.ASCII.GetBytes("123456789"));
Assert.Equal(0xEA, crc.HashAsByte);
}
public void Autosar_2()
{
var crc = Crc8.GetAutosar();
crc.ComputeHash(Encoding.ASCII.GetBytes("123456789"));
Assert.Equal(0xDF, crc.HashAsByte);
}
public void ICode_7()
{
var crc = Crc8.GetICode();
crc.ComputeHash(new byte[] { 0x30, 0x00, 0x00, 0x25 });
Assert.Equal(0x00, crc.HashAsByte);
}
public void ICode_4()
{
var crc = Crc8.GetICode();
crc.ComputeHash(new byte[] { 0x30 });
Assert.Equal(0xB4, crc.HashAsByte);
}
public void Hitag_2()
{
var crc = Crc8.GetHitag();
crc.ComputeHash(Encoding.ASCII.GetBytes("123456789"));
Assert.Equal(0xB4, crc.HashAsByte);
}
public void GsmB_2()
{
var crc = Crc8.GetGsmB();
crc.ComputeHash(Encoding.ASCII.GetBytes("123456789"));
Assert.Equal(0x94, crc.HashAsByte);
}
public IEnumerable <ushort> Encode(SmartConfigContext ctx, SmartConfigArguments args)
{
// Data = total len(1 byte) + apPwd len(1 byte) + SSID CRC(1 byte) +
// BSSID CRC(1 byte) + TOTAL XOR(1 byte)+ ipAddress(4 byte) + apPwd + apSsid apPwdLen <=
// 105 at the moment
var senderIPAddress = args.LocalAddress.GetAddressBytes();
var passwordBytes = args.Password != null?Encoding.ASCII.GetBytes(args.Password) : Constants.EmptyBuffer;
var ssid = Encoding.UTF8.GetBytes(args.Ssid);
var ssidCrc8 = Crc8.ComputeOnceOnly(ssid);
var bssid = args.Bssid?.GetAddressBytes() ?? Constants.EmptyBuffer;
var bssidCrc8 = Crc8.ComputeOnceOnly(bssid);
var totalLength = (byte)(ExtraHeaderLength + senderIPAddress.Length + passwordBytes.Length + ssid.Length);
byte totalXor = ComputeTotalXor(senderIPAddress, passwordBytes, ssid, ssidCrc8, bssidCrc8, totalLength);
_framesBuilder.Clear();
this.DoEncode(totalLength, (byte)passwordBytes.Length,
ssidCrc8, bssidCrc8, totalXor, senderIPAddress, passwordBytes, ssid, bssid);
return(_framesBuilder);
}
public FlakeReader(AudioPCMConfig _pcm)
{
pcm = _pcm;
crc8 = new Crc8();
crc16 = new Crc16();
samplesBuffer = new int[Flake.MAX_BLOCKSIZE * PCM.ChannelCount];
residualBuffer = new int[Flake.MAX_BLOCKSIZE * PCM.ChannelCount];
frame = new FlacFrame(PCM.ChannelCount);
framereader = new BitReader();
}
