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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: ./include/e_BlockSwitching.h
------------------------------------------------------------------------------
REVISION HISTORY
Who: Date:
Description:
------------------------------------------------------------------------------
INCLUDE DESCRIPTION
enum for BlockSwitching related constants
------------------------------------------------------------------------------
*/
/*----------------------------------------------------------------------------
; CONTINUE ONLY IF NOT ALREADY DEFINED
----------------------------------------------------------------------------*/
#ifndef E_BLOCK_SWITCHING_H
#define E_BLOCK_SWITCHING_H
/*----------------------------------------------------------------------------
; INCLUDES
----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------
; 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
----------------------------------------------------------------------------*/
typedef enum
{
/*
* block switching
*/
LN = 2048,
SN = 256,
LN2 = LN / 2,
SN2 = SN / 2,
LN4 = LN / 4,
SN4 = SN / 4,
NSHORT = LN / SN,
MAX_SBK = NSHORT,
MAX_WIN = MAX_SBK,
ONLY_LONG_WINDOW = 0,
LONG_START_WINDOW,
EIGHT_SHORT_WINDOW,
LONG_STOP_WINDOW,
NUM_WIN_SEQ,
WLONG = ONLY_LONG_WINDOW,
WSTART,
WSHORT,
WSTOP,
MAXBANDS = 16 * NSHORT, /* max number of scale factor bands */
MAXFAC = 121, /* maximum scale factor */
MIDFAC = (MAXFAC - 1) / 2,
SF_OFFSET = 100 /* global gain must be positive */
} eBlockSwitching;
/*----------------------------------------------------------------------------
; STRUCTURES TYPEDEF'S
----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------
; GLOBAL FUNCTION DEFINITIONS
; Function Prototype declaration
----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------
; END
----------------------------------------------------------------------------*/
#endif
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