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_HpInput.h 16 17 ******************************************************************/ 18 19 #ifndef MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_HP_INPUT_H_ 20 #define MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_HP_INPUT_H_ 21 22 #include <stddef.h> 23 #include <stdint.h> 24 25 // clang-format off 26 // Bad job here. https://bugs.llvm.org/show_bug.cgi?id=34274 27 void WebRtcIlbcfix_HpInput( 28 int16_t* signal, /* (i/o) signal vector */ 29 int16_t* ba, /* (i) B- and A-coefficients (2:nd order) 30 {b[0] b[1] b[2] -a[1] -a[2]} 31 a[0] is assumed to be 1.0 */ 32 int16_t* y, /* (i/o) Filter state yhi[n-1] ylow[n-1] 33 yhi[n-2] ylow[n-2] */ 34 int16_t* x, /* (i/o) Filter state x[n-1] x[n-2] */ 35 size_t len); /* (i) Number of samples to filter */ 36 // clang-format on 37 38 #endif 39