hp_input.h - mozsearch

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/*

 *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.

 *  Use of this source code is governed by a BSD-style license

 *  that can be found in the LICENSE file in the root of the source

 *  tree. An additional intellectual property rights grant can be found

 *  in the file PATENTS.  All contributing project authors may

 *  be found in the AUTHORS file in the root of the source tree.

*/

/******************************************************************

 iLBC Speech Coder ANSI-C Source Code

 WebRtcIlbcfix_HpInput.h

******************************************************************/

#ifndef MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_HP_INPUT_H_

#define MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_HP_INPUT_H_

#include <stddef.h>

#include <stdint.h>

// clang-format off

// Bad job here. https://bugs.llvm.org/show_bug.cgi?id=34274

void WebRtcIlbcfix_HpInput(

    int16_t* signal, /* (i/o) signal vector */

    int16_t* ba,     /* (i)   B- and A-coefficients (2:nd order)

                              {b[0] b[1] b[2] -a[1] -a[2]}

                              a[0] is assumed to be 1.0 */

    int16_t* y,      /* (i/o) Filter state yhi[n-1] ylow[n-1]

                              yhi[n-2] ylow[n-2] */

    int16_t* x,      /* (i/o) Filter state x[n-1] x[n-2] */

    size_t len);     /* (i)   Number of samples to filter */

// clang-format on

#endif