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/*
* 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_SplitVq.c
******************************************************************/
#include "modules/audio_coding/codecs/ilbc/split_vq.h"
#include "modules/audio_coding/codecs/ilbc/constants.h"
#include "modules/audio_coding/codecs/ilbc/defines.h"
#include "modules/audio_coding/codecs/ilbc/vq3.h"
#include "modules/audio_coding/codecs/ilbc/vq4.h"
/*----------------------------------------------------------------*
* split vector quantization
*---------------------------------------------------------------*/
void WebRtcIlbcfix_SplitVq(
int16_t *qX, /* (o) the quantized vector in Q13 */
int16_t *index, /* (o) a vector of indexes for all vector
codebooks in the split */
int16_t *X, /* (i) the vector to quantize */
int16_t *CB, /* (i) the quantizer codebook in Q13 */
int16_t *dim, /* (i) the dimension of X and qX */
int16_t *cbsize /* (i) the number of vectors in the codebook */
) {
int16_t *qXPtr, *indexPtr, *CBPtr, *XPtr;
/* Quantize X with the 3 vectror quantization tables */
qXPtr=qX;
indexPtr=index;
CBPtr=CB;
XPtr=X;
WebRtcIlbcfix_Vq3(qXPtr, indexPtr, CBPtr, XPtr, cbsize[0]);
qXPtr+=3;
indexPtr+=1;
CBPtr+=(dim[0]*cbsize[0]);
XPtr+=3;
WebRtcIlbcfix_Vq3(qXPtr, indexPtr, CBPtr, XPtr, cbsize[1]);
qXPtr+=3;
indexPtr+=1;
CBPtr+=(dim[1]*cbsize[1]);
XPtr+=3;
WebRtcIlbcfix_Vq4(qXPtr, indexPtr, CBPtr, XPtr, cbsize[2]);
return;
}