2 * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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.
11 /******************************************************************
13 iLBC Speech Coder ANSI-C Source Code
17 ******************************************************************/
19 #ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_VQ4_H_
20 #define WEBRTC_MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_VQ4_H_
24 /*----------------------------------------------------------------*
25 * Vector quantization of order 4 (based on MSE)
26 *---------------------------------------------------------------*/
28 void WebRtcIlbcfix_Vq4(
29 int16_t *Xq, /* (o) the quantized vector (Q13) */
30 int16_t *index, /* (o) the quantization index */
31 int16_t *CB, /* (i) the vector quantization codebook (Q13) */
32 int16_t *X, /* (i) the vector to quantize (Q13) */
33 int16_t n_cb /* (i) the number of vectors in the codebook */