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Diffstat (limited to 'gr-atsc/include/atsc/viterbi_decoder.h')
-rw-r--r-- | gr-atsc/include/atsc/viterbi_decoder.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/gr-atsc/include/atsc/viterbi_decoder.h b/gr-atsc/include/atsc/viterbi_decoder.h new file mode 100644 index 0000000000..e119337553 --- /dev/null +++ b/gr-atsc/include/atsc/viterbi_decoder.h @@ -0,0 +1,62 @@ +/* -*- c++ -*- */ +/* + * Copyright 2006 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 INCLUDED_ATSC_VITERBI_DECODER_H +#define INCLUDED_ATSC_VITERBI_DECODER_H + +#include <atsc/api.h> +#include <gr_sync_block.h> +#include <atsc/viterbi_decoder_impl.h> + +class atsc_viterbi_decoder; +typedef boost::shared_ptr<atsc_viterbi_decoder> atsc_viterbi_decoder_sptr; + +ATSC_API atsc_viterbi_decoder_sptr atsc_make_viterbi_decoder(); + +/*! + * \brief ATSC 12-way interleaved viterbi decoder (atsc_soft_data_segment --> atsc_mpeg_packet_rs_encoded) + * \ingroup atsc + * + * input: atsc_soft_data_segment; output: atsc_mpeg_packet_rs_encoded + */ +class ATSC_API atsc_viterbi_decoder : public gr_sync_block +{ + friend ATSC_API atsc_viterbi_decoder_sptr atsc_make_viterbi_decoder(); + + atsci_viterbi_decoder d_viterbi_decoder; + + atsc_viterbi_decoder(); + +public: + int work (int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); + + void reset() { /* nop */ } + +protected: + int last_start; + +}; + + +#endif /* INCLUDED_ATSC_VITERBI_DECODER_H */ |