1b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/* ------------------------------------------------------------------ 2b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Copyright (C) 1998-2009 PacketVideo 3b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * 4b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 5b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * you may not use this file except in compliance with the License. 6b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * You may obtain a copy of the License at 7b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * 8b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 9b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * 10b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Unless required by applicable law or agreed to in writing, software 11b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 12b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 13b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * express or implied. 14b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * See the License for the specific language governing permissions 15b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * and limitations under the License. 16b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * ------------------------------------------------------------------- 17b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber */ 18b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/**************************************************************************************** 19b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas HuberPortions of this file are derived from the following 3GPP standard: 20b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 21b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 3GPP TS 26.073 22b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec 23b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Available from http://www.3gpp.org 24b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 25b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC) 26b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas HuberPermission to distribute, modify and use this file under the standard license 27b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huberterms listed above has been obtained from the copyright holder. 28b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber****************************************************************************************/ 29b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/* 30b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 31b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 32b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 33b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 34b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Filename: /audio/gsm_amr/c/src/prm2bits.c 35b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 36b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Date: 02/04/2002 37b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 38b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 39b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber REVISION HISTORY 40b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 41b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Description: Improved the code as per review comments. 42b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 43b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Description: For Int2bin() and Prm2bits() 44b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 1. Eliminated unused include file typedef.h. 45b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 2. Replaced array addressing by pointers 46b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 3. Changed to decrement loops 47b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 48b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Description: Replaced "int" and/or "char" with OSCL defined types. 49b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 50b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Description: 51b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 52b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 53b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber*/ 54b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 55b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/*---------------------------------------------------------------------------- 56b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; INCLUDES 57b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber----------------------------------------------------------------------------*/ 58b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#include "prm2bits.h" 59b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#include "mode.h" 60b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#include "bitno_tab.h" 61b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 62b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 63b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/*---------------------------------------------------------------------------- 64b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; MACROS 65b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; [Define module specific macros here] 66b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber----------------------------------------------------------------------------*/ 67b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 68b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/*---------------------------------------------------------------------------- 69b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; DEFINES 70b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; [Include all pre-processor statements here. Include conditional 71b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; compile variables also.] 72b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber----------------------------------------------------------------------------*/ 73b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#define MASK 0x0001 74b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/*---------------------------------------------------------------------------- 75b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; LOCAL FUNCTION DEFINITIONS 76b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; [List function prototypes here] 77b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber----------------------------------------------------------------------------*/ 78b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 79b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/*---------------------------------------------------------------------------- 80b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; LOCAL VARIABLE DEFINITIONS 81b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; [Variable declaration - defined here and used outside this module] 82b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber----------------------------------------------------------------------------*/ 83b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 84b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/* 85b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 86b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber FUNCTION NAME: Int2bin 87b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 88b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber INPUT AND OUTPUT DEFINITIONS 89b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 90b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Inputs: 91b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber value = value to be converted to binary of type Word16 92b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber no_of_bits = number of bits associated with value of type Word16 93b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 94b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Outputs: 95b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber bitstream = pointer to address where bits are written of type Word16 96b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 97b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Returns: 98b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber None 99b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 100b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Global Variables Used: 101b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber None 102b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 103b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Local Variables Needed: 104b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber None 105b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 106b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 107b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber FUNCTION DESCRIPTION 108b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 109b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber FUNCTION: Int2bin 110b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 111b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber PURPOSE: convert integer to binary and write the bits to the array 112b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber bitstream[]. The most significant bits are written first. 113b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 114b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 115b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber REQUIREMENTS 116b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 117b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber None 118b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 119b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 120b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber REFERENCES 121b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 122b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber prm2bits.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001 123b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 124b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 125b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber PSEUDO-CODE 126b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 127b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huberstatic void Int2bin ( 128b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 value, // input : value to be converted to binary 129b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 no_of_bits, // input : number of bits associated with value 130b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 *bitstream // output: address where bits are written 131b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber) 132b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber{ 133b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 *pt_bitstream, i, bit; 134b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 135b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber pt_bitstream = &bitstream[no_of_bits]; 136b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 137b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber for (i = 0; i < no_of_bits; i++) 138b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber { 139b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber bit = value & MASK; 140b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber if (bit == 0) 141b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber { 142b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber *--pt_bitstream = BIT_0; 143b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber } 144b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber else 145b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber { 146b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber *--pt_bitstream = BIT_1; 147b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber } 148b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber value = shr (value, 1); 149b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber } 150b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber} 151b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 152b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 153b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber RESOURCES USED [optional] 154b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 155b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber When the code is written for a specific target processor the 156b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber the resources used should be documented below. 157b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 158b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber HEAP MEMORY USED: x bytes 159b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 160b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber STACK MEMORY USED: x bytes 161b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 162b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber CLOCK CYCLES: (cycle count equation for this function) + (variable 163b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber used to represent cycle count for each subroutine 164b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber called) 165b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber where: (cycle count variable) = cycle count for [subroutine 166b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber name] 167b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 168b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 169b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber CAUTION [optional] 170b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber [State any special notes, constraints or cautions for users of this function] 171b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 172b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 173b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber*/ 174b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 175b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/*---------------------------------------------------------------------------- 176b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; FUNCTION CODE 177b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber----------------------------------------------------------------------------*/ 178b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huberstatic void Int2bin( 179b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 value, /* input : value to be converted to binary */ 180b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 no_of_bits, /* input : number of bits associated with value */ 181b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 *bitstream /* output: address where bits are written */ 182b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber) 183b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber{ 184b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 *pt_bitstream; 185b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 i; 186b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 187b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber pt_bitstream = &bitstream[no_of_bits-1]; 188b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 189b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber for (i = no_of_bits; i != 0; i--) 190b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber { 191b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber *(pt_bitstream--) = value & MASK; 192b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber value >>= 1; 193b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber } 194b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 195b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber} 196b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 197b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 198b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/* 199b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 200b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber FUNCTION NAME: prm2bits 201b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 202b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber INPUT AND OUTPUT DEFINITIONS 203b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 204b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Inputs: 205b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber mode = AMR mode of type enum Mode 206b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber prm[] = pointer to analysis parameters of type Word16 207b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 208b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Outputs: 209b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber bits[] = pointer to serial bits of type Word16 210b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 211b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Returns: 212b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber None 213b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 214b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Global Variables Used: 215b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber None 216b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 217b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Local Variables Needed: 218b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber None 219b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 220b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 221b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber FUNCTION DESCRIPTION 222b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 223b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber FUNCTION: Prm2bits 224b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 225b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber PURPOSE: converts the encoder parameter vector into a vector of serial 226b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber bits. 227b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 228b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber DESCRIPTION: depending on the mode, different numbers of parameters 229b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber (with differing numbers of bits) are processed. Details 230b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber are found in bitno.tab 231b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 232b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 233b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber REQUIREMENTS 234b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 235b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber None 236b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 237b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 238b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber REFERENCES 239b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 240b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber prm2bits.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001 241b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 242b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 243b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber PSEUDO-CODE 244b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 245b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Hubervoid Prm2bits ( 246b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber enum Mode mode, // i : AMR mode 247b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 prm[], // i : analysis parameters (size <= MAX_PRM_SIZE) 248b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 bits[] // o : serial bits (size <= MAX_SERIAL_SIZE) 249b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber) 250b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber{ 251b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 i; 252b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 253b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber for (i = 0; i < prmno[mode]; i++) 254b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber { 255b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Int2bin (prm[i], bitno[mode][i], bits); 256b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber bits += bitno[mode][i]; 257b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber add(0,0); // account for above pointer update 258b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber } 259b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 260b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber return; 261b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber} 262b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 263b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 264b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber RESOURCES USED [optional] 265b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 266b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber When the code is written for a specific target processor the 267b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber the resources used should be documented below. 268b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 269b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber HEAP MEMORY USED: x bytes 270b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 271b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber STACK MEMORY USED: x bytes 272b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 273b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber CLOCK CYCLES: (cycle count equation for this function) + (variable 274b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber used to represent cycle count for each subroutine 275b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber called) 276b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber where: (cycle count variable) = cycle count for [subroutine 277b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber name] 278b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 279b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 280b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber CAUTION [optional] 281b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber [State any special notes, constraints or cautions for users of this function] 282b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 283b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 284b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber*/ 285b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 286b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/*---------------------------------------------------------------------------- 287b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; FUNCTION CODE 288b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber----------------------------------------------------------------------------*/ 289b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Hubervoid Prm2bits( 290b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber enum Mode mode, /* i : AMR mode */ 291b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 prm[], /* i : analysis parameters (size <= MAX_PRM_SIZE) */ 292b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 bits[] /* o : serial bits (size <= MAX_SERIAL_SIZE) */ 293b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber) 294b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber{ 295b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 i; 296b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber const Word16 *p_mode; 297b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word16 *p_prm; 298b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 299b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber p_mode = &bitno[mode][0]; 300b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber p_prm = &prm[0]; 301b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 302b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber for (i = prmno[mode]; i != 0; i--) 303b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber { 304b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Int2bin(*(p_prm++), *(p_mode), bits); 305b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber bits += *(p_mode++); 306b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber } 307b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 308b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber return; 309b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber} 310b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 311