kopia lustrzana https://github.com/f4exb/sdrangel
83 wiersze
2.9 KiB
C++
83 wiersze
2.9 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2016 Edouard Griffiths, F4EXB. //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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/*
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* DMR voice frames
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* 6 Major blocks of 10 slots. 2 groups of slots of 144 bytes each.
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* Map is as follows in number of bytes
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*
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* 0 ... 5
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* A 0 54 ... 54 <- this one is always skipped
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* 1 12 12 <- cache data
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* 2 36 36 <- AMBE slot
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* 3 18 18 <- AMBE slot
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* 4 24 24 <- sync data
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* B 5 18 18 <- AMBE slot
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* 6 36 36 <- AMBE slot
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* 7 12 12 <- cache data
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* 8 54 54 <- this one is always skipped
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* 9 24 24 <- sync data
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*
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* The A gtoup of the first major block is already in memory and is processed
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* at initialization time
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* Then dibits for each slot are stored in cache and processed right after the
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* last dibit for the slot has been added.
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* For skipped slots the dibits are simply thrown away
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*
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*/
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#ifndef DSDPLUS_DMR_VOICE_H_
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#define DSDPLUS_DMR_VOICE_H_
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namespace DSDPlus
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{
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class DSDDecoder;
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class DSDDMRVoice
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{
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public:
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DSDDMRVoice(DSDDecoder *dsdDecoder);
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~DSDDMRVoice();
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void init();
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void process();
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private:
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DSDDecoder *m_dsdDecoder;
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// extracts AMBE frames from DMR frame
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int m_slotIndex; //!< Slot index in major block 0..9 //i;
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int m_majorBlock; //!< Major block index 0..5 //j;
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int dibit;
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int *dibit_p;
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char ambe_fr[4][24];
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char ambe_fr2[4][24];
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char ambe_fr3[4][24];
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const int *w, *x, *y, *z;
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char sync[25];
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char syncdata[25];
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char cachdata[13];
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int mutecurrentslot;
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int msMode;
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int m_dibitCache[54]; // biggest slot is 54 dibits
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int m_dibitIndex; // index in dibit cache
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};
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}
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#endif /* DSDPLUS_DMR_VOICE_H_ */
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