| /* -*- c++ -*- */ |
| /* |
| * @file |
| * @author (C) 2015 by Roman Khassraf <rkhassraf@gmail.com> |
| * @section LICENSE |
| * |
| * Gr-gsm 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. |
| * |
| * Gr-gsm 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 gr-gsm; see the file COPYING. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #ifndef INCLUDED_GSM_TCH_F_DECODER_IMPL_H |
| #define INCLUDED_GSM_TCH_F_DECODER_IMPL_H |
| |
| #include "openbts/AmrCoder.h" |
| #include "openbts/BitVector.h" |
| #include "openbts/GSM503Tables.h" |
| #include "openbts/GSM610Tables.h" |
| #include "openbts/GSM660Tables.h" |
| #include "openbts/ViterbiR204.h" |
| #include <grgsm/decoding/tch_f_decoder.h> |
| |
| |
| #define DATA_BLOCK_SIZE 184 |
| #define PARITY_SIZE 40 |
| #define FLUSH_BITS_SIZE 4 |
| #define PARITY_OUTPUT_SIZE (DATA_BLOCK_SIZE + PARITY_SIZE + FLUSH_BITS_SIZE) |
| |
| #define CONV_INPUT_SIZE PARITY_OUTPUT_SIZE |
| #define CONV_SIZE (2 * CONV_INPUT_SIZE) |
| |
| #define BLOCKS 8 |
| #define iBLOCK_SIZE (CONV_SIZE / BLOCKS) |
| |
| namespace gr { |
| namespace gsm { |
| |
| class tch_f_decoder_impl : public tch_f_decoder |
| { |
| private: |
| unsigned int d_collected_bursts_num; |
| unsigned short interleave_trans[CONV_SIZE]; |
| pmt::pmt_t d_bursts[8]; |
| enum tch_mode d_tch_mode; |
| bool d_boundary_check; |
| bool d_boundary_decode; |
| bool d_header_sent; |
| |
| BitVector mU; |
| BitVector mP; |
| BitVector mD; |
| BitVector mDP; |
| BitVector mTCHU; |
| BitVector mTCHD; |
| BitVector mClass1A_d; |
| SoftVector mC; |
| SoftVector mClass1_c; |
| SoftVector mClass2_c; |
| SoftVector mTCHUC; |
| |
| Parity mBlockCoder; |
| Parity mTCHParity; |
| |
| ViterbiR2O4 mVR204Coder; |
| ViterbiBase *mViterbi; |
| |
| unsigned char iBLOCK[2*BLOCKS*iBLOCK_SIZE]; |
| unsigned char mAMRFrameHeader; |
| |
| const unsigned *mAMRBitOrder; |
| const unsigned *mPuncture; |
| unsigned mClass1ALth; |
| unsigned mClass1BLth; |
| unsigned mPunctureLth; |
| uint8_t mAMRFrameLth; |
| uint8_t mKd; |
| |
| void decode(pmt::pmt_t msg); |
| void setCodingMode(tch_mode mode); |
| public: |
| tch_f_decoder_impl(tch_mode mode, bool boundary_check=false); |
| ~tch_f_decoder_impl(); |
| }; |
| |
| } // namespace gsm |
| } // namespace gr |
| |
| #endif /* INCLUDED_GSM_TCH_F_DECODER_IMPL_H */ |
| |