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/* ------------------------------------------------------------------
* 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.
* -------------------------------------------------------------------
*/
/*
Pathname: long_term_prediction.h
------------------------------------------------------------------------------
REVISION HISTORY
Description: Modified prototype with array size passed in per review
comments.
Description: Changed prototype with "weight_index" instead of "weight".
Description: Removed some passed in buffer size variables since they are
not being used for long window.
Description: Temporarily define LTP_Q_FORMAT for current release.
Need to change function prototype and pass out Q_format
information later.
Description: Updated function prototype to reflect the usage of a
circular buffer by LTP.
Description: Updated function interface with new return type
Who: Date:
Description:
------------------------------------------------------------------------------
INCLUDE DESCRIPTION
This file includes function prototype declaration for long_term_prediction().
------------------------------------------------------------------------------
*/
/*----------------------------------------------------------------------------
; CONTINUE ONLY IF NOT ALREADY DEFINED
----------------------------------------------------------------------------*/
#ifndef LONG_TERM_PREDICTION_H
#define LONG_TERM_PREDICTION_H
/*----------------------------------------------------------------------------
; INCLUDES
----------------------------------------------------------------------------*/
#include "pv_audio_type_defs.h"
#include "e_window_sequence.h"
/*----------------------------------------------------------------------------
; MACROS
; Define module specific macros here
----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------
; DEFINES
; Include all pre-processor statements here.
----------------------------------------------------------------------------*/
#define LTP_Q_FORMAT (15)
/*----------------------------------------------------------------------------
; 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
----------------------------------------------------------------------------*/
#ifdef __cplusplus
extern "C"
{
#endif
Int long_term_prediction(
WINDOW_SEQUENCE win_seq,
const Int weight_index,
const Int delay[],
const Int16 buffer[],
const Int buffer_offset,
const Int32 time_quant[],
Int32 predicted_samples[], /* Q15 */
const Int frame_length);
#ifdef __cplusplus
}
#endif
/*----------------------------------------------------------------------------
; END
----------------------------------------------------------------------------*/
#endif
|
