diff options
Diffstat (limited to 'media/libstagefright/codecs/amrnb/dec/src/d1035pf.cpp')
| -rw-r--r-- | media/libstagefright/codecs/amrnb/dec/src/d1035pf.cpp | 263 |
1 files changed, 0 insertions, 263 deletions
diff --git a/media/libstagefright/codecs/amrnb/dec/src/d1035pf.cpp b/media/libstagefright/codecs/amrnb/dec/src/d1035pf.cpp deleted file mode 100644 index 899daba..0000000 --- a/media/libstagefright/codecs/amrnb/dec/src/d1035pf.cpp +++ /dev/null @@ -1,263 +0,0 @@ -/* ------------------------------------------------------------------ - * 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. -****************************************************************************************/ -/* ------------------------------------------------------------------------------- - - - - Pathname: ./audio/gsm-amr/c/src/d1035pf.c - - Date: 04/14/2000 - ------------------------------------------------------------------------------- - REVISION HISTORY - - Description: Updated template used to PV coding template. First attempt at - optimizing C code. - - Description: Updated file per comments gathered from Phase 2/3 review. - - Description: Synchronized file with UTMS version 3.2.0. Updated coding - template. Removed unnecessary include files. - - Description: Removed inclusion of "gray.tab". - - Description: - ------------------------------------------------------------------------------- -*/ - -/*---------------------------------------------------------------------------- -; INCLUDES -----------------------------------------------------------------------------*/ -#include "d1035pf.h" -#include "typedef.h" -#include "basic_op.h" -#include "cnst.h" - -/*---------------------------------------------------------------------------- -; MACROS -; Define module specific macros here -----------------------------------------------------------------------------*/ - -/*---------------------------------------------------------------------------- -; DEFINES -; Include all pre-processor statements here. Include conditional -; compile variables also. -----------------------------------------------------------------------------*/ -#define NB_PULSE 10 /* number of pulses */ - -/*---------------------------------------------------------------------------- -; LOCAL FUNCTION DEFINITIONS -; Function Prototype declaration -----------------------------------------------------------------------------*/ - -/*---------------------------------------------------------------------------- -; LOCAL STORE/BUFFER/POINTER DEFINITIONS -; Variable declaration - defined here and used outside this module -----------------------------------------------------------------------------*/ - -/* ------------------------------------------------------------------------------- - FUNCTION NAME: dec_10i40_35bits ------------------------------------------------------------------------------- - INPUT AND OUTPUT DEFINITIONS - - Inputs: - index = buffer containing index of 10 pulses; each element is - represented by sign+position - cod = buffer of algebraic (fixed) codebook excitation - - Outputs: - cod buffer contains the new algebraic codebook excitation - - Returns: - None - - Global Variables Used: - dgray = gray decoding table - - Local Variables Needed: - None - ------------------------------------------------------------------------------- - FUNCTION DESCRIPTION - - This function builds the innovative codevector from the received index of - algebraic codebook. See c1035pf.c for more details about the algebraic - codebook structure. - ------------------------------------------------------------------------------- - REQUIREMENTS - - None - ------------------------------------------------------------------------------- - REFERENCES - - d1035pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001 - ------------------------------------------------------------------------------- - PSEUDO-CODE - -void dec_10i40_35bits ( - Word16 index[], // (i) : index of 10 pulses (sign+position) - Word16 cod[] // (o) : algebraic (fixed) codebook excitation -) -{ - Word16 i, j, pos1, pos2, sign, tmp; - - for (i = 0; i < L_CODE; i++) - { - cod[i] = 0; - } - - // decode the positions and signs of pulses and build the codeword - - for (j = 0; j < NB_TRACK; j++) - { - // compute index i - - tmp = index[j]; - i = tmp & 7; - i = dgray[i]; - - i = extract_l (L_shr (L_mult (i, 5), 1)); - pos1 = add (i, j); // position of pulse "j" - - i = shr (tmp, 3) & 1; - if (i == 0) - { - sign = 4096; // +1.0 - } - else - { - sign = -4096; // -1.0 - } - - cod[pos1] = sign; - - // compute index i - - i = index[add (j, 5)] & 7; - i = dgray[i]; - i = extract_l (L_shr (L_mult (i, 5), 1)); - - pos2 = add (i, j); // position of pulse "j+5" - - if (sub (pos2, pos1) < 0) - { - sign = negate (sign); - } - cod[pos2] = add (cod[pos2], sign); - } - - return; -} - ------------------------------------------------------------------------------- - 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] - ------------------------------------------------------------------------------- -*/ - -void dec_10i40_35bits( - Word16 index[], /* (i) : index of 10 pulses (sign+position) */ - Word16 cod[] /* (o) : algebraic (fixed) codebook excitation */ -) -{ - register Word16 i, j, pos1, pos2; - Word16 sign, tmp; - - for (i = 0; i < L_CODE; i++) - { - *(cod + i) = 0; - } - - /* decode the positions and signs of pulses and build the codeword */ - - for (j = 0; j < NB_TRACK; j++) - { - /* compute index i */ - - tmp = *(index + j); - i = tmp & 7; - i = *(dgray + i); - - i = (Word16)(i * 5); - pos1 = i + j; /* position of pulse "j" */ - - i = (tmp >> 3) & 1; - - if (i == 0) - { - sign = 4096; /* +1.0 */ - } - else - { - sign = -4096; /* -1.0 */ - } - - *(cod + pos1) = sign; - - /* compute index i */ - - i = *(index + j + 5) & 7; - i = *(dgray + i); - i = (Word16)(i * 5); - - pos2 = i + j; /* position of pulse "j+5" */ - - - if (pos2 < pos1) - { - sign = negate(sign); - } - *(cod + pos2) += sign; - } - - return; -} |