code_device/hgdriver/ImageProcess/include/zxing/pdf417/decoder/Decoder.h

63 lines
2.0 KiB
C++
Executable File

#ifndef __DECOCER_PDF_H__
#define __DECOCER_PDF_H__
/*
* Decoder.h
* zxing
*
* Created by Hartmut Neubauer, 2012-05-25
* Copyright 2010,2012 ZXing authors All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <zxing/pdf417/decoder/ec/ErrorCorrection.h>
#include <zxing/pdf417/decoder/ec/ModulusGF.h>
#include <zxing/common/Counted.h>
#include <zxing/common/Array.h>
#include <zxing/common/DecoderResult.h>
#include <zxing/common/BitMatrix.h>
namespace zxing {
namespace pdf417 {
namespace decoder {
/**
* <p>The main class which implements PDF417 Code decoding -- as
* opposed to locating and extracting the PDF417 Code from an image.</p>
*
* <p> 2012-06-27 HFN Reed-Solomon error correction activated, see class PDF417RSDecoder. </p>
* <p> 2012-09-19 HFN Reed-Solomon error correction via ErrorCorrection/ModulusGF/ModulusPoly. </p>
*/
class Decoder {
private:
static const int MAX_ERRORS;
static const int MAX_EC_CODEWORDS;
void correctErrors(ArrayRef<int> codewords,
ArrayRef<int> erasures, int numECCodewords);
static void verifyCodewordCount(ArrayRef<int> codewords, int numECCodewords);
public:
Ref<DecoderResult> decode(Ref<BitMatrix> bits, DecodeHints const& hints);
};
}
}
}
#endif // __DECOCER_PDF_H__