diff options
Diffstat (limited to 'gr-atsc/include/atsc/reed_solomon_impl.h')
-rw-r--r-- | gr-atsc/include/atsc/reed_solomon_impl.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/gr-atsc/include/atsc/reed_solomon_impl.h b/gr-atsc/include/atsc/reed_solomon_impl.h new file mode 100644 index 0000000000..484b6d0ce2 --- /dev/null +++ b/gr-atsc/include/atsc/reed_solomon_impl.h @@ -0,0 +1,57 @@ +/* -*- c++ -*- */ +/* + * Copyright 2002 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifndef _ATSC_REED_SOLOMON_H_ +#define _ATSC_REED_SOLOMON_H_ + +#include <atsc/api.h> +#include <atsc/types.h> + +/*! + * \brief ATSC Reed-Solomon encoder / decoder + * + * The t=10 (207,187) code described in ATSC standard A/53B. + * See figure D5 on page 55. + */ + +class ATSC_API atsci_reed_solomon { + + public: + atsci_reed_solomon(); + ~atsci_reed_solomon(); + + /*! + * \brief Add RS error correction encoding + */ + void encode (atsc_mpeg_packet_rs_encoded &out, const atsc_mpeg_packet_no_sync &in); + + /*! + * Decode RS encoded packet. + * \returns a count of corrected symbols, or -1 if the block was uncorrectible. + */ + int decode (atsc_mpeg_packet_no_sync &out, const atsc_mpeg_packet_rs_encoded &in); + + private: + void *d_rs; +}; + +#endif /* _ATSC_REED_SOLOMON_H_ */ |