/* ------------------------------------------------------------------ * 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/overflow_tbl.c ------------------------------------------------------------------------------ REVISION HISTORY Description: Added #ifdef __cplusplus and removed "extern" from table definition. Description: Put "extern" back. Who: Date: Description: ------------------------------------------------------------------------------ MODULE DESCRIPTION This file contains the declaration for overflow_tbl[] used by the l_shl() and l_shr() functions. ------------------------------------------------------------------------------ */ /*---------------------------------------------------------------------------- ; INCLUDES ----------------------------------------------------------------------------*/ #include "typedef.h" /*--------------------------------------------------------------------------*/ #ifdef __cplusplus extern "C" { #endif /*---------------------------------------------------------------------------- ; MACROS ; [Define module specific macros here] ----------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------- ; DEFINES ; [Include all pre-processor statements here. Include conditional ; compile variables also.] ----------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------- ; LOCAL FUNCTION DEFINITIONS ; [List function prototypes here] ----------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------- ; LOCAL VARIABLE DEFINITIONS ; [Variable declaration - defined here and used outside this module] ----------------------------------------------------------------------------*/ const Word32 overflow_tbl [32] = {0x7fffffffL, 0x3fffffffL, 0x1fffffffL, 0x0fffffffL, 0x07ffffffL, 0x03ffffffL, 0x01ffffffL, 0x00ffffffL, 0x007fffffL, 0x003fffffL, 0x001fffffL, 0x000fffffL, 0x0007ffffL, 0x0003ffffL, 0x0001ffffL, 0x0000ffffL, 0x00007fffL, 0x00003fffL, 0x00001fffL, 0x00000fffL, 0x000007ffL, 0x000003ffL, 0x000001ffL, 0x000000ffL, 0x0000007fL, 0x0000003fL, 0x0000001fL, 0x0000000fL, 0x00000007L, 0x00000003L, 0x00000001L, 0x00000000L }; /*--------------------------------------------------------------------------*/ #ifdef __cplusplus } #endif /* ------------------------------------------------------------------------------ FUNCTION NAME: ------------------------------------------------------------------------------ INPUT AND OUTPUT DEFINITIONS Inputs: None Outputs: None Returns: None Global Variables Used: None Local Variables Needed: None ------------------------------------------------------------------------------ FUNCTION DESCRIPTION None ------------------------------------------------------------------------------ REQUIREMENTS None ------------------------------------------------------------------------------ REFERENCES [1] l_shl() function in basic_op2.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001 ------------------------------------------------------------------------------ PSEUDO-CODE ------------------------------------------------------------------------------ RESOURCES USED [optional] When the code is written for a specific target processor the the resources used should be documented below. HEAP MEMORY USED: x bytes STACK MEMORY USED: x bytes CLOCK CYCLES: (cycle count equation for this function) + (variable used to represent cycle count for each subroutine called) where: (cycle count variable) = cycle count for [subroutine name] ------------------------------------------------------------------------------ CAUTION [optional] [State any special notes, constraints or cautions for users of this function] ------------------------------------------------------------------------------ */ /*---------------------------------------------------------------------------- ; FUNCTION CODE ----------------------------------------------------------------------------*/