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Diffstat (limited to 'media/libstagefright/codecs/amrnb/enc/src/ol_ltp.h')
| -rw-r--r-- | media/libstagefright/codecs/amrnb/enc/src/ol_ltp.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/amrnb/enc/src/ol_ltp.h b/media/libstagefright/codecs/amrnb/enc/src/ol_ltp.h new file mode 100644 index 0000000..f8c1481 --- /dev/null +++ b/media/libstagefright/codecs/amrnb/enc/src/ol_ltp.h @@ -0,0 +1,125 @@ +/* ------------------------------------------------------------------ + * 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/ol_ltp.h + + Date: 02/06/2002 + +------------------------------------------------------------------------------ + REVISION HISTORY + + Description: Replaced "int" and/or "char" with OSCL defined types. + + Description: Moved _cplusplus #ifdef after Include section. + + Description: + +------------------------------------------------------------------------------ + INCLUDE DESCRIPTION + + File : ol_ltp.h + Purpose : Compute the open loop pitch lag. + +------------------------------------------------------------------------------ +*/ + +#ifndef OL_LTP_H +#define OL_LTP_H "$Id $" + +/*---------------------------------------------------------------------------- +; INCLUDES +----------------------------------------------------------------------------*/ +#include "typedef.h" +#include "mode.h" +#include "p_ol_wgh.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] + ----------------------------------------------------------------------------*/ + void ol_ltp( + pitchOLWghtState *st, /* i/o : State struct */ + vadState *vadSt, /* i/o : VAD state struct */ + enum Mode mode, /* i : coder mode */ + Word16 wsp[], /* i : signal used to compute the OL pitch, Q0 */ + /* uses signal[-pit_max] to signal[-1] */ + Word16 *T_op, /* o : open loop pitch lag, Q0 */ + Word16 old_lags[], /* i : history with old stored Cl lags */ + Word16 ol_gain_flg[], /* i : OL gain flag */ + Word16 idx, /* i : index */ + Flag dtx, /* i : dtx flag; use dtx=1, do not use dtx=0 */ + Flag *pOverflow /* i/o : overflow Flag */ + ); + + +#ifdef __cplusplus +} +#endif + +#endif /* _OL_LTP_H_ */ + + |