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 29 void 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
