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Diffstat (limited to 'media/libstagefright/codecs/amrnb/enc/src/levinson.h')
| -rw-r--r-- | media/libstagefright/codecs/amrnb/enc/src/levinson.h | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/media/libstagefright/codecs/amrnb/enc/src/levinson.h b/media/libstagefright/codecs/amrnb/enc/src/levinson.h deleted file mode 100644 index 65ba481..0000000 --- a/media/libstagefright/codecs/amrnb/enc/src/levinson.h +++ /dev/null @@ -1,143 +0,0 @@ -/* ------------------------------------------------------------------ - * 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/levinson.h - - Date: 01/29/2002 - ------------------------------------------------------------------------------- - REVISION HISTORY - Description: 1. Modified "int" definition by Word16 - - Description: Replaced "int" and/or "char" with OSCL defined types. - - Description: Moved _cplusplus #ifdef after Include section. - - Description: - ------------------------------------------------------------------------------- - INCLUDE DESCRIPTION - - File : lag_wind.h - Purpose : Lag windowing of autocorrelations. - ------------------------------------------------------------------------------- -*/ - -#ifndef _LEVINSON_H_ -#define _LEVINSON_H_ -#define levinson_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.] - ----------------------------------------------------------------------------*/ - - /*---------------------------------------------------------------------------- - ; EXTERNAL VARIABLES REFERENCES - ; [Declare variables used in this module but defined elsewhere] - ----------------------------------------------------------------------------*/ - - /*---------------------------------------------------------------------------- - ; SIMPLE TYPEDEF'S - ----------------------------------------------------------------------------*/ - - /*---------------------------------------------------------------------------- - ; ENUMERATED TYPEDEF'S - ----------------------------------------------------------------------------*/ - - /*---------------------------------------------------------------------------- - ; STRUCTURES TYPEDEF'S - ----------------------------------------------------------------------------*/ - typedef struct - { - Word16 old_A[M + 1]; /* Last A(z) for case of unstable filter */ - } LevinsonState; - - /*---------------------------------------------------------------------------- - ; GLOBAL FUNCTION DEFINITIONS - ; [List function prototypes here] - ----------------------------------------------------------------------------*/ - Word16 Levinson_init(LevinsonState **st); - /* initialize one instance of the pre processing state. - Stores pointer to filter status struct in *st. This pointer has to - be passed to Levinson in each call. - returns 0 on success - */ - - Word16 Levinson_reset(LevinsonState *st); - /* reset of pre processing state (i.e. set state memory to zero) - returns 0 on success - */ - void Levinson_exit(LevinsonState **st); - /* de-initialize pre processing state (i.e. free status struct) - stores NULL in *st - */ - - Word16 Levinson( - LevinsonState *st, - Word16 Rh[], /* i : Rh[m+1] Vector of autocorrelations (msb) */ - Word16 Rl[], /* i : Rl[m+1] Vector of autocorrelations (lsb) */ - Word16 A[], /* o : A[m] LPC coefficients (m = 10) */ - Word16 rc[], /* o : rc[4] First 4 reflection coefficients */ - Flag *pOverflow - ); - - - -#ifdef __cplusplus -} -#endif - -#endif /* _LEVINSON_H_ */ - - - - |