| public getErrorLengthForInterleavedBlock ( int index ) : int | ||
| index | int | |
| return | int | |
/// <summary>
/// Creates the ECC200 error correction for an encoded message.
/// </summary>
/// <param name="codewords">The codewords.</param>
/// <param name="symbolInfo">information about the symbol to be encoded</param>
/// <returns>the codewords with interleaved error correction.</returns>
public static String encodeECC200(String codewords, SymbolInfo symbolInfo)
{
if (codewords.Length != symbolInfo.dataCapacity)
{
throw new ArgumentException(
"The number of codewords does not match the selected symbol");
}
var sb = new StringBuilder(symbolInfo.dataCapacity + symbolInfo.errorCodewords);
sb.Append(codewords);
int blockCount = symbolInfo.getInterleavedBlockCount();
if (blockCount == 1)
{
String ecc = createECCBlock(codewords, symbolInfo.errorCodewords);
sb.Append(ecc);
}
else
{
sb.Length = sb.Capacity;
int[] dataSizes = new int[blockCount];
int[] errorSizes = new int[blockCount];
int[] startPos = new int[blockCount];
for (int i = 0; i < blockCount; i++)
{
dataSizes[i] = symbolInfo.getDataLengthForInterleavedBlock(i + 1);
errorSizes[i] = symbolInfo.getErrorLengthForInterleavedBlock(i + 1);
startPos[i] = 0;
if (i > 0)
{
startPos[i] = startPos[i - 1] + dataSizes[i];
}
}
for (int block = 0; block < blockCount; block++)
{
var temp = new StringBuilder(dataSizes[block]);
for (int d = block; d < symbolInfo.dataCapacity; d += blockCount)
{
temp.Append(codewords[d]);
}
String ecc = createECCBlock(temp.ToString(), errorSizes[block]);
int pos = 0;
for (int e = block; e < errorSizes[block] * blockCount; e += blockCount)
{
sb[symbolInfo.dataCapacity + e] = ecc[pos++];
}
}
}
return(sb.ToString());
}
/// <summary>
/// Creates the ECC200 error correction for an encoded message.
/// </summary>
/// <param name="codewords">The codewords.</param>
/// <param name="symbolInfo">information about the symbol to be encoded</param>
/// <returns>the codewords with interleaved error correction.</returns>
public static String encodeECC200(String codewords, SymbolInfo symbolInfo)
{
if (codewords.Length != symbolInfo.dataCapacity)
{
throw new ArgumentException(
"The number of codewords does not match the selected symbol");
}
var sb = new StringBuilder(symbolInfo.dataCapacity + symbolInfo.errorCodewords);
sb.Append(codewords);
int blockCount = symbolInfo.getInterleavedBlockCount();
if (blockCount == 1)
{
String ecc = createECCBlock(codewords, symbolInfo.errorCodewords);
sb.Append(ecc);
}
else
{
sb.Length = sb.Capacity;
int[] dataSizes = new int[blockCount];
int[] errorSizes = new int[blockCount];
int[] startPos = new int[blockCount];
for (int i = 0; i < blockCount; i++)
{
dataSizes[i] = symbolInfo.getDataLengthForInterleavedBlock(i + 1);
errorSizes[i] = symbolInfo.getErrorLengthForInterleavedBlock(i + 1);
startPos[i] = 0;
if (i > 0)
{
startPos[i] = startPos[i - 1] + dataSizes[i];
}
}
for (int block = 0; block < blockCount; block++)
{
var temp = new StringBuilder(dataSizes[block]);
for (int d = block; d < symbolInfo.dataCapacity; d += blockCount)
{
temp.Append(codewords[d]);
}
String ecc = createECCBlock(temp.ToString(), errorSizes[block]);
int pos = 0;
for (int e = block; e < errorSizes[block] * blockCount; e += blockCount)
{
sb[symbolInfo.dataCapacity + e] = ecc[pos++];
}
}
}
return sb.ToString();
}