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Diffstat (limited to 'media/libstagefright/codecs/amrnb/enc/src/set_sign.h')
| -rw-r--r-- | media/libstagefright/codecs/amrnb/enc/src/set_sign.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/amrnb/enc/src/set_sign.h b/media/libstagefright/codecs/amrnb/enc/src/set_sign.h new file mode 100644 index 0000000..7b0185a --- /dev/null +++ b/media/libstagefright/codecs/amrnb/enc/src/set_sign.h @@ -0,0 +1,127 @@ +/* ------------------------------------------------------------------ + * Copyright (C) 1998-2009 PacketVideo + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either + * express or implied. + * See the License for the specific language governing permissions + * and limitations under the License. + * ------------------------------------------------------------------- + */ +/**************************************************************************************** +Portions of this file are derived from the following 3GPP standard: + + 3GPP TS 26.073 + ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec + Available from http://www.3gpp.org + +(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC) +Permission to distribute, modify and use this file under the standard license +terms listed above has been obtained from the copyright holder. +****************************************************************************************/ +/* +------------------------------------------------------------------------------ + + + + Filename: /audio/gsm_amr/c/include/set_sign.h + + Date: 08/11/2000 + +------------------------------------------------------------------------------ + REVISION HISTORY + + + Description: Changed function prototype for set_sign12k2(); pointer to + overflow flag is passed in as a parameter. + + Description: Moved _cplusplus #ifdef after Include section. + + Description: + + +------------------------------------------------------------------------------ + INCLUDE DESCRIPTION + + This file contains all the constant definitions and prototype definitions + needed by the set_sign() and set_sign12k2() function. + +------------------------------------------------------------------------------ +*/ + +#ifndef SET_SIGN_H +#define SET_SIGN_H "@(#)$Id $" + +/*---------------------------------------------------------------------------- +; INCLUDES +----------------------------------------------------------------------------*/ +#include "basicop_malloc.h" + +/*--------------------------------------------------------------------------*/ +#ifdef __cplusplus +extern "C" +{ +#endif + + /*---------------------------------------------------------------------------- + ; MACROS + ; Define module specific macros here + ----------------------------------------------------------------------------*/ + + /*---------------------------------------------------------------------------- + ; DEFINES + ; Include all pre-processor statements here. + ----------------------------------------------------------------------------*/ + + /*---------------------------------------------------------------------------- + ; EXTERNAL VARIABLES REFERENCES + ; Declare variables used in this module but defined elsewhere + ----------------------------------------------------------------------------*/ + + /*---------------------------------------------------------------------------- + ; SIMPLE TYPEDEF'S + ----------------------------------------------------------------------------*/ + + /*---------------------------------------------------------------------------- + ; ENUMERATED TYPEDEF'S + ----------------------------------------------------------------------------*/ + + /*---------------------------------------------------------------------------- + ; STRUCTURES TYPEDEF'S + ----------------------------------------------------------------------------*/ + + /*---------------------------------------------------------------------------- + ; GLOBAL FUNCTION DEFINITIONS + ; Function Prototype declaration + ----------------------------------------------------------------------------*/ + void set_sign(Word16 dn[], /* i/o : correlation between target and h[] */ + Word16 sign[], /* o : sign of dn[] */ + Word16 dn2[], /* o : maximum of correlation in each track. */ + Word16 n /* i : # of maximum correlations in dn2[] */ + ); + + void set_sign12k2( + Word16 dn[], /* i/o : correlation between target and h[] */ + Word16 cn[], /* i : residual after long term prediction */ + Word16 sign[], /* o : sign of d[n] */ + Word16 pos_max[], /* o : position of maximum correlation */ + Word16 nb_track, /* i : number of tracks tracks */ + Word16 ipos[], /* o : starting position for each pulse */ + Word16 step, /* i : the step size in the tracks */ + Flag *pOverflow /* i/o : overflow flag */ + ); + /*---------------------------------------------------------------------------- + ; END + ----------------------------------------------------------------------------*/ +#ifdef __cplusplus +} +#endif + +#endif /* _SET_SIGN_H_ */ |