/* fixedCodebookSearch.h Copyright (C) 2011 Belledonne Communications, Grenoble, France Author : Johan Pascal This program 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 2 of the License, or (at your option) any later version. This program 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 this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifndef FIXEDCODEBOOKSEARCH_H #define FIXEDCODEBOOKSEARCH_H /*****************************************************************************/ /* fixedCodebookSearch: compute fixed codebook parameters (codeword and sign)*/ /* compute also fixed codebook vector as in spec 3.8.1 */ /* parameters: */ /* -(i) targetSignal: 40 values as in spec A.3.6 in Q0 */ /* -(i) impulseResponse: 40 values as in spec A.3.5 in Q12 */ /* -(i) intPitchDelay: current integer pitch delay */ /* -(i) lastQuantizedAdaptativeCodebookGain: previous subframe pitch */ /* gain quantized in Q14 */ /* -(i) filteredAdaptativeCodebookVector : 40 values in Q0 */ /* -(i) adaptativeCodebookGain : in Q14 */ /* -(o) fixedCodebookParameter */ /* -(o) fixedCodebookPulsesSigns */ /* -(o) fixedCodebookVector : 40 values as in spec 3.8, eq45 in Q13 */ /* -(o) fixedCodebookVectorConvolved : 40 values as in spec 3.9, eq64 */ /* in Q12. */ /* */ /*****************************************************************************/ void fixedCodebookSearch(word16_t targetSignal[], word16_t impulseResponse[], int16_t intPitchDelay, word16_t lastQuantizedAdaptativeCodebookGain, word16_t filteredAdaptativeCodebookVector[], word16_t adaptativeCodebookGain, uint16_t *fixedCodebookParameter, uint16_t *fixedCodebookPulsesSigns, word16_t fixedCodebookVector[], word16_t fixedCodebookVectorConvolved[]); #endif /* ifndef FIXEDCODEBOOKSEARCH_H */