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_Enhancer.c
16
17******************************************************************/
18
19#include "defines.h"
20#include "constants.h"
21#include "get_sync_seq.h"
22#include "smooth.h"
23
24/*----------------------------------------------------------------*
25 * perform enhancement on idata+centerStartPos through
26 * idata+centerStartPos+ENH_BLOCKL-1
27 *---------------------------------------------------------------*/
28
29void WebRtcIlbcfix_Enhancer(
30    int16_t *odata,   /* (o) smoothed block, dimension blockl */
31    int16_t *idata,   /* (i) data buffer used for enhancing */
32    int16_t idatal,   /* (i) dimension idata */
33    int16_t centerStartPos, /* (i) first sample current block within idata */
34    int16_t *period,   /* (i) pitch period array (pitch bward-in time) */
35    int16_t *plocs,   /* (i) locations where period array values valid */
36    int16_t periodl   /* (i) dimension of period and plocs */
37                            ){
38  /* Stack based */
39  int16_t surround[ENH_BLOCKL];
40
41  WebRtcSpl_MemSetW16(surround, 0, ENH_BLOCKL);
42
43  /* get said second sequence of segments */
44
45  WebRtcIlbcfix_GetSyncSeq(idata, idatal, centerStartPos, period, plocs,
46                           periodl, ENH_HL, surround);
47
48  /* compute the smoothed output from said second sequence */
49
50  WebRtcIlbcfix_Smooth(odata, idata+centerStartPos, surround);
51}
52