diff options
Diffstat (limited to 'opencore/codecs_v2/audio/gsm_amr/amr_nb/dec/src/ex_ctrl.h')
-rw-r--r-- | opencore/codecs_v2/audio/gsm_amr/amr_nb/dec/src/ex_ctrl.h | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/opencore/codecs_v2/audio/gsm_amr/amr_nb/dec/src/ex_ctrl.h b/opencore/codecs_v2/audio/gsm_amr/amr_nb/dec/src/ex_ctrl.h new file mode 100644 index 0000000..8f6472f --- /dev/null +++ b/opencore/codecs_v2/audio/gsm_amr/amr_nb/dec/src/ex_ctrl.h @@ -0,0 +1,122 @@ +/* ------------------------------------------------------------------ + * 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: ex_ctrl.h + +------------------------------------------------------------------------------ + INCLUDE DESCRIPTION + + File : ex_ctrl.h + Purpose : Excitation Control module in background noise + +------------------------------------------------------------------------------ +*/ + +/*---------------------------------------------------------------------------- +; CONTINUE ONLY IF NOT ALREADY DEFINED +----------------------------------------------------------------------------*/ +#ifndef ex_ctrl_h +#define ex_ctrl_h "$Id $" + +/*---------------------------------------------------------------------------- +; INCLUDES +----------------------------------------------------------------------------*/ +#include "typedef.h" +#include "cnst.h" + +/*--------------------------------------------------------------------------*/ +#ifdef __cplusplus +extern "C" +{ +#endif + + /*---------------------------------------------------------------------------- + ; MACROS + ; Define module specific macros here + ----------------------------------------------------------------------------*/ + + /*---------------------------------------------------------------------------- + ; DEFINES + ; Include all pre-processor statements here. + ----------------------------------------------------------------------------*/ +#define L_ENERGYHIST 60 + /*---------------------------------------------------------------------------- + ; 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 + ----------------------------------------------------------------------------*/ + /* + * Function : Ex_ctrl + * Purpose : Charaterice synthesis speech and detect background noise + * Returns : background noise decision; 0 = bgn, 1 = no bgn + */ + Word16 Ex_ctrl(Word16 excitation[], /*i/o: Current subframe excitation */ + Word16 excEnergy, /* i : Exc. Energy, sqrt(totEx*totEx)*/ + Word16 exEnergyHist[], /* i : History of subframe energies */ + Word16 voicedHangover, /* i : # of fr. after last voiced fr.*/ + Word16 prevBFI, /* i : Set i previous BFI */ + Word16 carefulFlag, /* i : Restrict dymamic in scaling */ + Flag *pOverflow + ); + + /*---------------------------------------------------------------------------- + ; END + ----------------------------------------------------------------------------*/ +#ifdef __cplusplus +} +#endif + +#endif /* _ex_ctrl_h_ */ + + + + + + + |