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40 lines
2.3 KiB
40 lines
2.3 KiB
/*
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* Copyright (c) 2011-2019 Belledonne Communications SARL.
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*
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* This file is part of bcg729.
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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, either version 3 of the License, or
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* (at your option) any later version.
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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 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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#ifndef VAD_H
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#define VAD_H
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/*****************************************************************************/
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/* initBcg729VADChannel : create context structure and initialise it */
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/* return value : */
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/* - the VAD channel context data */
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/* */
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/*****************************************************************************/
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bcg729VADChannelContextStruct *initBcg729VADChannel();
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/*******************************************************************************************/
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/* bcg729_vad : voice activity detection from AnnexB */
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/* parameters: */
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/* -(i/o):VADChannelContext : context containing all informations needed for VAD */
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/* */
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/* returns : 1 for active voice frame, 0 for silence frame */
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/* */
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/*******************************************************************************************/
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uint8_t bcg729_vad(bcg729VADChannelContextStruct *VADChannelContext, word32_t reflectionCoefficient, word16_t *LSFCoefficients, word32_t *autoCorrelationCoefficients, int8_t autoCorrelationCoefficientsScale, const word16_t *signalCurrentFrame);
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#endif /* ifndef VAD_H */
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