private DecoderResult decode(BitMatrixParser parser, Map<DecodeHintType,?> hints) throws FormatException, ChecksumException { Version version = parser.readVersion(); ErrorCorrectionLevel ecLevel = parser.readFormatInformation().getErrorCorrectionLevel(); // Read codewords byte[] codewords = parser.readCodewords(); // Separate into data blocks DataBlock[] dataBlocks = DataBlock.getDataBlocks(codewords, version, ecLevel); // Count total number of data bytes int totalBytes = 0; for (DataBlock dataBlock : dataBlocks) { totalBytes += dataBlock.getNumDataCodewords(); } byte[] resultBytes = new byte[totalBytes]; int resultOffset = 0; // Error-correct and copy data blocks together into a stream of bytes for (DataBlock dataBlock : dataBlocks) { byte[] codewordBytes = dataBlock.getCodewords(); int numDataCodewords = dataBlock.getNumDataCodewords(); correctErrors(codewordBytes, numDataCodewords); for (int i = 0; i < numDataCodewords; i++) { resultBytes[resultOffset++] = codewordBytes[i]; } } // Decode the contents of that stream of bytes return DecodedBitStreamParser.decode(resultBytes, version, ecLevel, hints); }
private DecoderResult decode(BitMatrixParser parser, Map<DecodeHintType,?> hints) throws FormatException, ChecksumException { Version version = parser.readVersion(); ErrorCorrectionLevel ecLevel = parser.readFormatInformation().getErrorCorrectionLevel(); // Read codewords byte[] codewords = parser.readCodewords(); // Separate into data blocks DataBlock[] dataBlocks = DataBlock.getDataBlocks(codewords, version, ecLevel); // Count total number of data bytes int totalBytes = 0; for (DataBlock dataBlock : dataBlocks) { totalBytes += dataBlock.getNumDataCodewords(); } byte[] resultBytes = new byte[totalBytes]; int resultOffset = 0; // Error-correct and copy data blocks together into a stream of bytes for (DataBlock dataBlock : dataBlocks) { byte[] codewordBytes = dataBlock.getCodewords(); int numDataCodewords = dataBlock.getNumDataCodewords(); correctErrors(codewordBytes, numDataCodewords); for (int i = 0; i < numDataCodewords; i++) { resultBytes[resultOffset++] = codewordBytes[i]; } } // Decode the contents of that stream of bytes return DecodedBitStreamParser.decode(resultBytes, version, ecLevel, hints); }
byte[] codewordBytes = dataBlock.getCodewords(); int numDataCodewords = dataBlock.getNumDataCodewords(); correctErrors(codewordBytes, numDataCodewords);