/* LSPQuantization.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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef LSPQUANTIZATION_H #define LSPQUANTIZATION_H void initLSPQuantization(bcg729EncoderChannelContextStruct *encoderChannelContext); /*****************************************************************************/ /* LSPQuantization : Convert LSP to LSF, Quantize LSF and find L parameters, */ /* qLSF->qLSP as described in spec A3.2.4 */ /* parameters: */ /* -(i/o) encoderChannelContext : the channel context data */ /* -(i) LSPCoefficients : 10 LSP coefficients in Q15 */ /* -(i) qLSPCoefficients : 10 qLSP coefficients in Q15 */ /* -(o) parameters : 4 parameters L0, L1, L2, L3 */ /* */ /*****************************************************************************/ void LSPQuantization(bcg729EncoderChannelContextStruct *encoderChannelContext, word16_t LSPCoefficients[], word16_t qLSPCoefficients[], uint16_t parameters[]); /**********************************************************************************/ /* noiseLSPQuantization : Convert LSP to LSF, Quantize LSF and find L parameters, */ /* qLSF->qLSP as described in spec A3.2.4 */ /* parameters: */ /* -(i/o) previousqLSF : 4 previousqLSF, is updated by this function */ /* -(i) LSPCoefficients : 10 LSP coefficients in Q15 */ /* -(o) qLSPCoefficients : 10 qLSP coefficients in Q15 */ /* -(o) parameters : 3 parameters L0, L1, L2 */ /* */ /**********************************************************************************/ void noiseLSPQuantization(word16_t previousqLSF[MA_MAX_K][NB_LSP_COEFF], word16_t LSPCoefficients[], word16_t qLSPCoefficients[], uint8_t parameters[]); #endif /* LSPQUANTIZATION_H */