1 /* 2 * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 /****************************************************************** 12 13 iLBC Speech Coder ANSI-C Source Code 14 15 WebRtcIlbcfix_DecoderInterpolateLsp.h 16 17 ******************************************************************/ 18 19 #ifndef MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_DECODER_INTERPOLATE_LSF_H_ 20 #define MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_DECODER_INTERPOLATE_LSF_H_ 21 22 #include <stddef.h> 23 #include <stdint.h> 24 25 #include "modules/audio_coding/codecs/ilbc/defines.h" 26 27 /*----------------------------------------------------------------* 28 * obtain synthesis and weighting filters form lsf coefficients 29 *---------------------------------------------------------------*/ 30 31 void WebRtcIlbcfix_DecoderInterpolateLsp( 32 int16_t* syntdenum, /* (o) synthesis filter coefficients */ 33 int16_t* weightdenum, /* (o) weighting denumerator 34 coefficients */ 35 int16_t* lsfdeq, /* (i) dequantized lsf coefficients */ 36 int16_t length, /* (i) length of lsf coefficient vector */ 37 IlbcDecoder* iLBCdec_inst 38 /* (i) the decoder state structure */ 39 ); 40 41 #endif 42