| /* |
| * Copyright 2012 ZXing authors |
| * |
| * 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. |
| */ |
| |
| /** |
| * Implements Reed-Solomon decoding, as the name implies. |
| * |
| * The algorithm will not be explained here, but the following references were helpful |
| * in creating this implementation: |
| * |
| * Bruce Maggs. |
| * http://www.cs.cmu.edu/afs/cs.cmu.edu/project/pscico-guyb/realworld/www/rs_decode.ps |
| * "Decoding Reed-Solomon Codes" (see discussion of Forney's Formula) |
| * |
| * J.I. Hall. www.mth.msu.edu/~jhall/classes/codenotes/GRS.pdf |
| * "Chapter 5. Generalized Reed-Solomon Codes" |
| * (see discussion of Euclidean algorithm) |
| * |
| * Much credit is due to William Rucklidge since portions of this code are an indirect |
| * port of his C++ Reed-Solomon implementation. |
| */ |
| |
| @class ZXGenericGF; |
| |
| @interface ZXReedSolomonDecoder : NSObject |
| |
| - (id)initWithField:(ZXGenericGF *)field; |
| - (BOOL)decode:(int *)received receivedLen:(int)receivedLen twoS:(int)twoS error:(NSError **)error; |
| |
| @end |
