xref: /aosp_15_r20/external/webrtc/modules/audio_coding/codecs/ilbc/abs_quant.h (revision d9f758449e529ab9291ac668be2861e7a55c2422)
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_AbsQuant.h
16 
17 ******************************************************************/
18 
19 #ifndef MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_ABS_QUANT_H_
20 #define MODULES_AUDIO_CODING_CODECS_ILBC_MAIN_SOURCE_ABS_QUANT_H_
21 
22 #include <stddef.h>
23 #include <stdint.h>
24 
25 #include "modules/audio_coding/codecs/ilbc/defines.h"
26 
27 /*----------------------------------------------------------------*
28  *  predictive noise shaping encoding of scaled start state
29  *  (subrutine for WebRtcIlbcfix_StateSearch)
30  *---------------------------------------------------------------*/
31 
32 void WebRtcIlbcfix_AbsQuant(
33     IlbcEncoder* iLBCenc_inst,
34     /* (i) Encoder instance */
35     iLBC_bits* iLBC_encbits, /* (i/o) Encoded bits (outputs idxForMax
36                                    and idxVec, uses state_first as
37                                    input) */
38     int16_t* in,             /* (i) vector to encode */
39     int16_t* weightDenum     /* (i) denominator of synthesis filter */
40     );
41 
42 #endif
43