diff options
Diffstat (limited to 'media/libstagefright/codecs/amrnb/dec/src/dec_gain.h')
-rw-r--r-- | media/libstagefright/codecs/amrnb/dec/src/dec_gain.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/amrnb/dec/src/dec_gain.h b/media/libstagefright/codecs/amrnb/dec/src/dec_gain.h new file mode 100644 index 0000000..b9c6a8d --- /dev/null +++ b/media/libstagefright/codecs/amrnb/dec/src/dec_gain.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/src/include/dec_gain.h + + Date: 01/31/2002 + +------------------------------------------------------------------------------ + REVISION HISTORY + + Description: Moved _cplusplus #ifdef after Include section. + + Description: + +------------------------------------------------------------------------------ + INCLUDE DESCRIPTION + + File : dec_gain.h + Purpose : Decode the pitch and codebook gains + +------------------------------------------------------------------------------ +*/ + +#ifndef _DEC_GAIN_H_ +#define _DEC_GAIN_H_ +#define dec_gain_h "$Id $" + +/*---------------------------------------------------------------------------- +; INCLUDES +----------------------------------------------------------------------------*/ +#include "typedef.h" +#include "gc_pred.h" +#include "mode.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 + ; [List function prototypes here] + ----------------------------------------------------------------------------*/ + + /* + * FUNCTION: Dec_gain() + * PURPOSE: Decode the pitch and codebook gains + */ + void Dec_gain( + gc_predState *pred_state, /* i/o: MA predictor state */ + enum Mode mode, /* i : AMR mode */ + Word16 index, /* i : index of quantization. */ + Word16 code[], /* i : Innovative vector. */ + Word16 evenSubfr, /* i : Flag for even subframes */ + Word16 * gain_pit, /* o : Pitch gain. */ + Word16 * gain_cod, /* o : Code gain. */ + Flag * pOverflow + ); + + + +#ifdef __cplusplus +} +#endif + +#endif /* _DEC_GAIN_H_ */ + + + |