diff options
Diffstat (limited to 'media/libstagefright/codecs/amrnb/common/src/pow2_tbl.cpp')
-rw-r--r-- | media/libstagefright/codecs/amrnb/common/src/pow2_tbl.cpp | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/amrnb/common/src/pow2_tbl.cpp b/media/libstagefright/codecs/amrnb/common/src/pow2_tbl.cpp new file mode 100644 index 0000000..e0183a6 --- /dev/null +++ b/media/libstagefright/codecs/amrnb/common/src/pow2_tbl.cpp @@ -0,0 +1,163 @@ +/* ------------------------------------------------------------------ + * 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/pow2_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 log2_tbl[] used by the Pow2() function. + +------------------------------------------------------------------------------ +*/ + +/*---------------------------------------------------------------------------- +; 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] + ----------------------------------------------------------------------------*/ + + extern const Word16 pow2_tbl[33] = + { + 16384, 16743, 17109, 17484, 17867, 18258, 18658, 19066, 19484, 19911, + 20347, 20792, 21247, 21713, 22188, 22674, 23170, 23678, 24196, 24726, + 25268, 25821, 26386, 26964, 27554, 28158, 28774, 29405, 30048, 30706, + 31379, 32066, 32767 + }; + + /*--------------------------------------------------------------------------*/ +#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] pow2.tab, 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 +----------------------------------------------------------------------------*/ + |