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37 lines
2.0 KiB
37 lines
2.0 KiB
/*
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computeAdaptativeCodebookGain.h
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Copyright (C) 2011 Belledonne Communications, Grenoble, France
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Author : Johan Pascal
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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 for more details.
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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, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef COMPUTEADAPTATIVECODEBOOKGAIN_H
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#define COMPUTEADAPTATIVECODEBOOKGAIN_H
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/*****************************************************************************/
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/* computeAdaptativeCodebookGain: compute gain, return result in Q14 */
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/* in range [0,1.2]. Spec 3.7.3 */
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/* parameters: */
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/* -(i) targetSignal: 40 values in Q0 */
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/* -(i) filteredAdaptativeCodebookVector: 40 values in Q0 */
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/* -(o) gainQuantizationXy in Q0 on 64 bits used for gain quantization */
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/* -(o) gainQuantizationYy in Q0 on 64 bits used for gain quantization */
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/* return value: */
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/* - the adaptative codebook gain on 16 bits in Q14 */
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/* */
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/*****************************************************************************/
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word16_t computeAdaptativeCodebookGain(word16_t targetSignal[], word16_t filteredAdaptativeCodebookVector[], word64_t *gainQuantizationXy, word64_t *gainQuantizationYy);
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#endif /* ifndef COMPUTEADAPTATIVECODEBOOKGAIN_H */
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