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53 lines
2 KiB
C
53 lines
2 KiB
C
/*
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* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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/******************************************************************
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iLBC Speech Coder ANSI-C Source Code
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WebRtcIlbcfix_Enhancer.c
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******************************************************************/
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#include "modules/audio_coding/codecs/ilbc/enhancer.h"
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#include "modules/audio_coding/codecs/ilbc/constants.h"
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#include "modules/audio_coding/codecs/ilbc/defines.h"
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#include "modules/audio_coding/codecs/ilbc/get_sync_seq.h"
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#include "modules/audio_coding/codecs/ilbc/smooth.h"
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/*----------------------------------------------------------------*
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* perform enhancement on idata+centerStartPos through
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* idata+centerStartPos+ENH_BLOCKL-1
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*---------------------------------------------------------------*/
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void WebRtcIlbcfix_Enhancer(
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int16_t *odata, /* (o) smoothed block, dimension blockl */
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int16_t *idata, /* (i) data buffer used for enhancing */
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size_t idatal, /* (i) dimension idata */
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size_t centerStartPos, /* (i) first sample current block within idata */
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size_t *period, /* (i) pitch period array (pitch bward-in time) */
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const size_t *plocs, /* (i) locations where period array values valid */
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size_t periodl /* (i) dimension of period and plocs */
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){
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/* Stack based */
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int16_t surround[ENH_BLOCKL];
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WebRtcSpl_MemSetW16(surround, 0, ENH_BLOCKL);
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/* get said second sequence of segments */
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WebRtcIlbcfix_GetSyncSeq(idata, idatal, centerStartPos, period, plocs,
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periodl, ENH_HL, surround);
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/* compute the smoothed output from said second sequence */
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WebRtcIlbcfix_Smooth(odata, idata + centerStartPos, surround);
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}
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