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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 
     20  Pathname: tns_decode_coef.h
     21 
     22 ------------------------------------------------------------------------------
     23  REVISION HISTORY
     24 
     25  Description: Modified to return the LPC coefficients in-place, so the
     26  interface to tns_decode_coef is changed.
     27 
     28  Description: Modified to return the q-format of the LPC coefficients.
     29 
     30  Description: Modified so that only the function is declared here.  extern
     31  references to constant tables removed.  Also, new copyright header included.
     32 
     33  Description: Modified to include extra parameter, so tns_decode_coef can use
     34  scratch memory techniques.
     35 
     36  Description:
     37  (1) Modified to include the lines...
     38 
     39     #ifdef __cplusplus
     40     extern "C" {
     41     #endif
     42 
     43     #ifdef __cplusplus
     44     }
     45     #endif
     46 
     47  (2) Updated the copyright header.
     48 
     49  Who:                       Date:
     50  Description:
     51 ------------------------------------------------------------------------------
     52  INCLUDE DESCRIPTION
     53 
     54  This function includes the function declaration for tns_decode_coef()
     55 
     56 ------------------------------------------------------------------------------
     57 */
     58 
     59 /*----------------------------------------------------------------------------
     60 ; CONTINUE ONLY IF NOT ALREADY DEFINED
     61 ----------------------------------------------------------------------------*/
     62 #ifndef TNS_DECODE_COEF_H
     63 #define TNS_DECODE_COEF_H
     64 
     65 #ifdef __cplusplus
     66 extern "C"
     67 {
     68 #endif
     69 
     70     /*----------------------------------------------------------------------------
     71     ; INCLUDES
     72     ----------------------------------------------------------------------------*/
     73 
     74     /*----------------------------------------------------------------------------
     75     ; MACROS
     76     ; Define module specific macros here
     77     ----------------------------------------------------------------------------*/
     78 
     79     /*----------------------------------------------------------------------------
     80     ; DEFINES
     81     ; Include all pre-processor statements here.
     82     ----------------------------------------------------------------------------*/
     83 
     84     /*----------------------------------------------------------------------------
     85     ; EXTERNAL VARIABLES REFERENCES
     86     ; Declare variables used in this module but defined elsewhere
     87     ----------------------------------------------------------------------------*/
     88 
     89     /*----------------------------------------------------------------------------
     90     ; SIMPLE TYPEDEF'S
     91     ----------------------------------------------------------------------------*/
     92 
     93     /*----------------------------------------------------------------------------
     94     ; ENUMERATED TYPEDEF'S
     95     ----------------------------------------------------------------------------*/
     96 
     97     /*----------------------------------------------------------------------------
     98     ; STRUCTURES TYPEDEF'S
     99     ----------------------------------------------------------------------------*/
    100 
    101     /*----------------------------------------------------------------------------
    102     ; GLOBAL FUNCTION DEFINITIONS
    103     ; Function Prototype declaration
    104     ----------------------------------------------------------------------------*/
    105     Int tns_decode_coef(
    106         const Int   order,
    107         const Int   coef_res,
    108         Int32 lpc_coef[],
    109         Int32 scratchTnsDecCoefMem[]);
    110 
    111 #ifdef __cplusplus
    112 }
    113 #endif
    114 
    115 #endif /* TNS_DECODE_COEF */
    116