170 lines
6.3 KiB
C
170 lines
6.3 KiB
C
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/* ------------------------------------------------------------------
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* Copyright (C) 1998-2009 PacketVideo
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
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* express or implied.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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* -------------------------------------------------------------------
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*/
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/****************************************************************************************
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Portions of this file are derived from the following 3GPP standard:
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3GPP TS 26.073
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ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
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Available from http://www.3gpp.org
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(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
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Permission to distribute, modify and use this file under the standard license
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terms listed above has been obtained from the copyright holder.
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****************************************************************************************/
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/*
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Filename: /audio/gsm_amr/c/include/q_plsf.h
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------------------------------------------------------------------------------
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REVISION HISTORY
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Description: Placed header file in the proper template format. Added
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parameter pOverflow for the basic math ops.
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Description: Replaced "int" and/or "char" with OSCL defined types.
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Description: Moved _cplusplus #ifdef after Include section.
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Who: Date:
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Description:
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------------------------------------------------------------------------------
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INCLUDE DESCRIPTION
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This file contains all the constant definitions and prototype definitions
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needed by the q_plsf_3.c and q_plsf_5.c
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------------------------------------------------------------------------------
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*/
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/*----------------------------------------------------------------------------
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; CONTINUE ONLY IF NOT ALREADY DEFINED
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----------------------------------------------------------------------------*/
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#ifndef q_plsf_h
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#define q_plsf_h "$Id $"
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/*----------------------------------------------------------------------------
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; INCLUDES
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----------------------------------------------------------------------------*/
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#include "typedef.h"
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#include "cnst.h"
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#include "mode.h"
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/*--------------------------------------------------------------------------*/
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/*----------------------------------------------------------------------------
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; MACROS
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; Define module specific macros here
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----------------------------------------------------------------------------*/
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/*----------------------------------------------------------------------------
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; DEFINES
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; Include all pre-processor statements here.
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----------------------------------------------------------------------------*/
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#define MR795_1_SIZE 512
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#define PAST_RQ_INIT_SIZE 8
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#define DICO1_SIZE 256
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#define DICO2_SIZE 512
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#define DICO3_SIZE 512
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#define DICO1_5_SIZE 128
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#define DICO2_5_SIZE 256
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#define DICO3_5_SIZE 256
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#define DICO4_5_SIZE 256
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#define DICO5_5_SIZE 64
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#define MR515_3_SIZE 128
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/*----------------------------------------------------------------------------
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; EXTERNAL VARIABLES REFERENCES
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; Declare variables used in this module but defined elsewhere
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----------------------------------------------------------------------------*/
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/*----------------------------------------------------------------------------
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; SIMPLE TYPEDEF'S
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----------------------------------------------------------------------------*/
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/*----------------------------------------------------------------------------
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; ENUMERATED TYPEDEF'S
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----------------------------------------------------------------------------*/
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/*----------------------------------------------------------------------------
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; STRUCTURES TYPEDEF'S
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----------------------------------------------------------------------------*/
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typedef struct
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{
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Word16 past_rq[M]; /* Past quantized prediction error, Q15 */
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} Q_plsfState;
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/*----------------------------------------------------------------------------
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; GLOBAL FUNCTION DEFINITIONS
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; Function Prototype declaration
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----------------------------------------------------------------------------*/
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Word16 Q_plsf_init(Q_plsfState **st);
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/* initialize one instance of the state.
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Stores pointer to filter status struct in *st. This pointer has to
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be passed to Q_plsf_5 / Q_plsf_3 in each call.
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returns 0 on success
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*/
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Word16 Q_plsf_reset(Q_plsfState *st);
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/* reset of state (i.e. set state memory to zero)
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returns 0 on success
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*/
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void Q_plsf_exit(Q_plsfState **st);
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/* de-initialize state (i.e. free status struct)
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stores NULL in *st
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*/
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void Q_plsf_3(
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Q_plsfState *st, /* i/o: state struct */
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enum Mode mode, /* i : coder mode */
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Word16 *lsp1, /* i : 1st LSP vector Q15 */
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Word16 *lsp1_q, /* o : quantized 1st LSP vector Q15 */
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Word16 *indice, /* o : quantization indices of 3 vectors Q0 */
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Word16 *pred_init_i,/* o : init index for MA prediction in DTX mode */
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Flag *pOverflow /* o : Flag set when overflow occurs */
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);
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void Q_plsf_5(
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Q_plsfState *st,
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Word16 *lsp1, /* i : 1st LSP vector, Q15 */
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Word16 *lsp2, /* i : 2nd LSP vector, Q15 */
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Word16 *lsp1_q, /* o : quantized 1st LSP vector, Q15 */
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Word16 *lsp2_q, /* o : quantized 2nd LSP vector, Q15 */
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Word16 *indice, /* o : quantization indices of 5 matrices, Q0 */
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Flag *pOverflow /* o : Flag set when overflow occurs */
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);
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/*----------------------------------------------------------------------------
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; END
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----------------------------------------------------------------------------*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* _Q_PLSF_H_ */
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