GNU Radio 3.5.1 C++ API
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00001 /* -*- c++ -*- */ 00002 /* 00003 * Copyright 2002 Free Software Foundation, Inc. 00004 * 00005 * This file is part of GNU Radio 00006 * 00007 * GNU Radio is free software; you can redistribute it and/or modify 00008 * it under the terms of the GNU General Public License as published by 00009 * the Free Software Foundation; either version 3, or (at your option) 00010 * any later version. 00011 * 00012 * GNU Radio is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00015 * GNU General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU General Public License 00018 * along with GNU Radio; see the file COPYING. If not, write to 00019 * the Free Software Foundation, Inc., 51 Franklin Street, 00020 * Boston, MA 02110-1301, USA. 00021 */ 00022 00023 #ifndef _ATSC_REED_SOLOMON_H_ 00024 #define _ATSC_REED_SOLOMON_H_ 00025 00026 #include <atsc_api.h> 00027 #include <atsc_types.h> 00028 00029 /*! 00030 * \brief ATSC Reed-Solomon encoder / decoder 00031 * 00032 * The t=10 (207,187) code described in ATSC standard A/53B. 00033 * See figure D5 on page 55. 00034 */ 00035 00036 class ATSC_API atsci_reed_solomon { 00037 00038 public: 00039 atsci_reed_solomon(); 00040 ~atsci_reed_solomon(); 00041 00042 /*! 00043 * \brief Add RS error correction encoding 00044 */ 00045 void encode (atsc_mpeg_packet_rs_encoded &out, const atsc_mpeg_packet_no_sync &in); 00046 00047 /*! 00048 * Decode RS encoded packet. 00049 * \returns a count of corrected symbols, or -1 if the block was uncorrectible. 00050 */ 00051 int decode (atsc_mpeg_packet_no_sync &out, const atsc_mpeg_packet_rs_encoded &in); 00052 00053 private: 00054 void *d_rs; 00055 }; 00056 00057 #endif /* _ATSC_REED_SOLOMON_H_ */