webrtc/modules/audio_coding/codecs/iLBC/main/source/refiner.h

46 lines
1.8 KiB
C

/*
* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
/******************************************************************
iLBC Speech Coder ANSI-C Source Code
WebRtcIlbcfix_Refiner.h
******************************************************************/
#ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_REFINER_H_
#define WEBRTC_MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_REFINER_H_
#include "defines.h"
/*----------------------------------------------------------------*
* find segment starting near idata+estSegPos that has highest
* correlation with idata+centerStartPos through
* idata+centerStartPos+ENH_BLOCKL-1 segment is found at a
* resolution of ENH_UPSO times the original of the original
* sampling rate
*---------------------------------------------------------------*/
void WebRtcIlbcfix_Refiner(
iLBC_Dec_Inst_t *iLBCdec_inst,
/* (i) Decoder state */
WebRtc_Word16 *updStartPos, /* (o) updated start point (Q-2) */
WebRtc_Word16 *idata, /* (i) original data buffer */
WebRtc_Word16 idatal, /* (i) dimension of idata */
WebRtc_Word16 centerStartPos, /* (i) beginning center segment */
WebRtc_Word16 estSegPos, /* (i) estimated beginning other segment (Q-2) */
WebRtc_Word16 *surround, /* (i/o) The contribution from this sequence
summed with earlier contributions */
WebRtc_Word16 gain /* (i) Gain to use for this sequence */
);
#endif