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Diffstat (limited to 'media/libstagefright/codecs/amrnb/dec/src/d3_14pf.cpp')
| -rw-r--r-- | media/libstagefright/codecs/amrnb/dec/src/d3_14pf.cpp | 233 |
1 files changed, 0 insertions, 233 deletions
diff --git a/media/libstagefright/codecs/amrnb/dec/src/d3_14pf.cpp b/media/libstagefright/codecs/amrnb/dec/src/d3_14pf.cpp deleted file mode 100644 index d1912cf..0000000 --- a/media/libstagefright/codecs/amrnb/dec/src/d3_14pf.cpp +++ /dev/null @@ -1,233 +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/d3_14pf.c - Functions: decode_3i40_14bits - - Date: 01/28/2002 - ------------------------------------------------------------------------------- - REVISION HISTORY - - Description: Modified to place file in the correct template format. Eliminated - use of special functions to perform simple mathematical operations. - - Description: Per review comments... - (1) Removed include of "count.h" and "basic_op.h" - (2) Updated the pathname to indicate the correct file. (Line 39) - - Description: Replaced "int" and/or "char" with OSCL defined types. - - Description: - ------------------------------------------------------------------------------- - MODULE DESCRIPTION - - - FUNCTION: decode_3i40_14bits (decod_ACELP()) - - PURPOSE: Algebraic codebook decoder. For details about the encoding see - c3_14pf.c -*/ - -/*---------------------------------------------------------------------------- -; INCLUDES -----------------------------------------------------------------------------*/ -#include "typedef.h" -#include "cnst.h" -#include "d3_14pf.h" - -/*---------------------------------------------------------------------------- -; MACROS -; Define module specific macros here -----------------------------------------------------------------------------*/ - -/*---------------------------------------------------------------------------- -; DEFINES -; Include all pre-processor statements here. Include conditional -; compile variables also. -----------------------------------------------------------------------------*/ -#define NB_PULSE 3 /* number of pulses */ - - -/*---------------------------------------------------------------------------- -; LOCAL FUNCTION DEFINITIONS -; Function Prototype declaration -----------------------------------------------------------------------------*/ - -/*---------------------------------------------------------------------------- -; LOCAL VARIABLE DEFINITIONS -; Variable declaration - defined here and used outside this module -----------------------------------------------------------------------------*/ - -/* ------------------------------------------------------------------------------- - FUNCTION NAME: decode_3i40_14bits ------------------------------------------------------------------------------- - INPUT AND OUTPUT DEFINITIONS - - Inputs: - sign -- Word16 -- signs of 3 pulses. - index -- Word16 -- Positions of the 3 pulses. - - Outputs: - cod[] -- array of type Word16 -- algebraic (fixed) codebook excitation - - Returns: - None - - Global Variables Used: - None - - Local Variables Needed: - None - ------------------------------------------------------------------------------- - FUNCTION DESCRIPTION - - ------------------------------------------------------------------------------- - REQUIREMENTS - - None - ------------------------------------------------------------------------------- - REFERENCES - - d2_9pf.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] - ------------------------------------------------------------------------------- -*/ - -void decode_3i40_14bits( - Word16 sign, /* i : signs of 3 pulses. */ - Word16 index, /* i : Positions of the 3 pulses. */ - Word16 cod[] /* o : algebraic (fixed) codebook excitation */ -) -{ - Word16 i; - Word16 j; - - Word16 pos[NB_PULSE]; - - /* Decode the positions */ - - i = index & 0x7; - - pos[0] = i * 5; - - - - - - index >>= 3; - - j = index & 0x1; - - index >>= 1; - - i = index & 0x7; - - pos[1] = i * 5 + j * 2 + 1; - - - - - - index >>= 3; - - j = index & 0x1; - - index >>= 1; - - i = index & 0x7; - - pos[2] = i * 5 + j * 2 + 2; - - - /* decode the signs and build the codeword */ - - for (i = 0; i < L_SUBFR; i++) - { - cod[i] = 0; - } - - for (j = 0; j < NB_PULSE; j++) - { - i = sign & 1; - - /* This line is equivalent to... - * - * - * if (i == 1) - * { - * cod[pos[j]] = 8191; - * } - * if (i == 0) - * { - * cod[pos[j]] = -8192; - * } - */ - - cod[pos[j]] = i * 16383 - 8192; - - sign >>= 1; - - } - - return; -} |