hp_input.h 1.4 KB

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  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. iLBC Speech Coder ANSI-C Source Code
  12. WebRtcIlbcfix_HpInput.h
  13. ******************************************************************/
  14. #ifndef MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_HP_INPUT_H_
  15. #define MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_HP_INPUT_H_
  16. #include "modules/audio_coding/codecs/ilbc/defines.h"
  17. // clang-format off
  18. // Bad job here. https://bugs.llvm.org/show_bug.cgi?id=34274
  19. void WebRtcIlbcfix_HpInput(
  20. int16_t* signal, /* (i/o) signal vector */
  21. int16_t* ba, /* (i) B- and A-coefficients (2:nd order)
  22. {b[0] b[1] b[2] -a[1] -a[2]}
  23. a[0] is assumed to be 1.0 */
  24. int16_t* y, /* (i/o) Filter state yhi[n-1] ylow[n-1]
  25. yhi[n-2] ylow[n-2] */
  26. int16_t* x, /* (i/o) Filter state x[n-1] x[n-2] */
  27. size_t len); /* (i) Number of samples to filter */
  28. // clang-format on
  29. #endif