bw_expand.h 1.3 KB

123456789101112131415161718192021222324252627282930313233343536
  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_BwExpand.h
  13. ******************************************************************/
  14. #ifndef MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_BW_EXPAND_H_
  15. #define MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_BW_EXPAND_H_
  16. #include "modules/audio_coding/codecs/ilbc/defines.h"
  17. /*----------------------------------------------------------------*
  18. * lpc bandwidth expansion
  19. *---------------------------------------------------------------*/
  20. void WebRtcIlbcfix_BwExpand(
  21. int16_t* out, /* (o) the bandwidth expanded lpc coefficients */
  22. int16_t* in, /* (i) the lpc coefficients before bandwidth
  23. expansion */
  24. int16_t* coef, /* (i) the bandwidth expansion factor Q15 */
  25. int16_t length /* (i) the length of lpc coefficient vectors */
  26. );
  27. #endif