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      1 /* ------------------------------------------------------------------
      2  * Copyright (C) 1998-2009 PacketVideo
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
     13  * express or implied.
     14  * See the License for the specific language governing permissions
     15  * and limitations under the License.
     16  * -------------------------------------------------------------------
     17  */
     18 /****************************************************************************************
     19 Portions of this file are derived from the following 3GPP standard:
     20 
     21     3GPP TS 26.073
     22     ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
     23     Available from http://www.3gpp.org
     24 
     25 (C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
     26 Permission to distribute, modify and use this file under the standard license
     27 terms listed above has been obtained from the copyright holder.
     28 ****************************************************************************************/
     29 /*
     30 ------------------------------------------------------------------------------
     31 
     32 
     33 
     34  Filename: /audio/gsm_amr/c/include/c8_31pf.h
     35 
     36      Date: 01/29/2002
     37 
     38 ------------------------------------------------------------------------------
     39  REVISION HISTORY
     40 
     41  Description: Moved _cplusplus #ifdef after Include section.
     42 
     43  Description:
     44 
     45 ------------------------------------------------------------------------------
     46  INCLUDE DESCRIPTION
     47 
     48  This file contains all the constant definitions and prototype definitions
     49  needed by the c8_31pf.c
     50 
     51 ------------------------------------------------------------------------------
     52 */
     53 
     54 /*----------------------------------------------------------------------------
     55 ; CONTINUE ONLY IF NOT ALREADY DEFINED
     56 ----------------------------------------------------------------------------*/
     57 #ifndef c8_31pf_h
     58 #define c8_31pf_h "$Id $"
     59 
     60 /*----------------------------------------------------------------------------
     61 ; INCLUDES
     62 ----------------------------------------------------------------------------*/
     63 #include "typedef.h"
     64 
     65 /*--------------------------------------------------------------------------*/
     66 #ifdef __cplusplus
     67 extern "C"
     68 {
     69 #endif
     70 
     71     /*----------------------------------------------------------------------------
     72     ; MACROS
     73     ; Define module specific macros here
     74     ----------------------------------------------------------------------------*/
     75 
     76     /*----------------------------------------------------------------------------
     77     ; DEFINES
     78     ; Include all pre-processor statements here.
     79     ----------------------------------------------------------------------------*/
     80 
     81     /*----------------------------------------------------------------------------
     82     ; EXTERNAL VARIABLES REFERENCES
     83     ; Declare variables used in this module but defined elsewhere
     84     ----------------------------------------------------------------------------*/
     85 
     86     /*----------------------------------------------------------------------------
     87     ; SIMPLE TYPEDEF'S
     88     ----------------------------------------------------------------------------*/
     89 
     90     /*----------------------------------------------------------------------------
     91     ; ENUMERATED TYPEDEF'S
     92     ----------------------------------------------------------------------------*/
     93 
     94     /*----------------------------------------------------------------------------
     95     ; STRUCTURES TYPEDEF'S
     96     ----------------------------------------------------------------------------*/
     97 
     98     /*----------------------------------------------------------------------------
     99     ; GLOBAL FUNCTION DEFINITIONS
    100     ; Function Prototype declaration
    101     ----------------------------------------------------------------------------*/
    102 
    103     void code_8i40_31bits(
    104         Word16 x[],        /* i : target vector                                  */
    105         Word16 cn[],       /* i : residual after long term prediction            */
    106         Word16 h[],        /* i : impulse response of weighted synthesis
    107                               filter                                         */
    108         Word16 cod[],      /* o : algebraic (fixed) codebook excitation          */
    109         Word16 y[],        /* o : filtered fixed codebook excitation             */
    110         Word16 indx[],     /* o : 7 Word16, index of 8 pulses (signs+positions)  */
    111         Flag   * pOverflow /* o : Flag set when overflow occurs                  */
    112     );
    113 
    114 
    115     /*----------------------------------------------------------------------------
    116     ; END
    117     ----------------------------------------------------------------------------*/
    118 #ifdef __cplusplus
    119 }
    120 #endif
    121 
    122 #endif /* _c8_31PF_H_ */
    123