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Diffstat (limited to 'media/libstagefright/codecs/amrnb/common/src/bits2prm.cpp')
-rw-r--r-- | media/libstagefright/codecs/amrnb/common/src/bits2prm.cpp | 292 |
1 files changed, 0 insertions, 292 deletions
diff --git a/media/libstagefright/codecs/amrnb/common/src/bits2prm.cpp b/media/libstagefright/codecs/amrnb/common/src/bits2prm.cpp deleted file mode 100644 index 1d6f7b1..0000000 --- a/media/libstagefright/codecs/amrnb/common/src/bits2prm.cpp +++ /dev/null @@ -1,292 +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. -****************************************************************************************/ -/* - - Filename: /audio/gsm_amr/c/src/bits2prm.c - ------------------------------------------------------------------------------- - REVISION HISTORY - - Description: Fixed a typo in the include section. Optimized some lines of - code as per review comments. - - Description: Replaced "int" and/or "char" with OSCL defined types. - - Who: Date: - Description: - ------------------------------------------------------------------------------- -*/ - -/*---------------------------------------------------------------------------- -; INCLUDES -----------------------------------------------------------------------------*/ -#include "bits2prm.h" -#include "typedef.h" -#include "mode.h" -#include "bitno_tab.h" - -/*---------------------------------------------------------------------------- -; 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] -----------------------------------------------------------------------------*/ - -/* ------------------------------------------------------------------------------- - FUNCTION NAME: Bin2int ------------------------------------------------------------------------------- - INPUT AND OUTPUT DEFINITIONS - - Inputs: - no_of_bits = number of bits associated with value - bitstream = pointer to buffer where bits are read - - Outputs: - None - - Returns: - None - - Global Variables Used: - None - - Local Variables Needed: - None - ------------------------------------------------------------------------------- - FUNCTION DESCRIPTION - - Function : Bin2int - Purpose : Read "no_of_bits" bits from the array bitstream[] - and convert to integer. - ------------------------------------------------------------------------------- - REQUIREMENTS - - None - ------------------------------------------------------------------------------- - REFERENCES - - bits2prm.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001 - ------------------------------------------------------------------------------- - PSEUDO-CODE - -static Word16 Bin2int ( // Reconstructed parameter - Word16 no_of_bits, // input : number of bits associated with value - Word16 *bitstream // output: address where bits are written -) -{ - Word16 value, i, bit; - - value = 0; - for (i = 0; i < no_of_bits; i++) - { - value = shl (value, 1); - bit = *bitstream++; - if (sub (bit, BIT_1) == 0) - value = add (value, 1); - } - return (value); -} - ------------------------------------------------------------------------------- - 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 -----------------------------------------------------------------------------*/ -static Word16 Bin2int( /* Reconstructed parameter */ - Word16 no_of_bits, /* input : number of bits associated with value */ - Word16 *bitstream /* input: address where bits are read from */ -) -{ - Word16 value; - Word16 i; - Word16 single_bit; - - value = 0; - for (i = 0; i < no_of_bits; i++) - { - value <<= 1; - single_bit = *(bitstream++); - value |= single_bit; - } - return (value); -} - - -/* ------------------------------------------------------------------------------- - FUNCTION NAME: bits2prm ------------------------------------------------------------------------------- - INPUT AND OUTPUT DEFINITIONS - - Inputs: - mode = AMR mode of type enum Mode - bits[] = pointer to serial bits of type Word16 - prm[] = pointer to analysis parameters of type Word16 - - Outputs: - None - - Returns: - None - - Global Variables Used: - None - - Local Variables Needed: - None - ------------------------------------------------------------------------------- - FUNCTION DESCRIPTION - - Function : Bits2prm - Purpose : Retrieves the vector of encoder parameters from - the received serial bits in a frame. - ------------------------------------------------------------------------------- - REQUIREMENTS - - None - ------------------------------------------------------------------------------- - REFERENCES - - bits2prm.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001 - ------------------------------------------------------------------------------- - PSEUDO-CODE - -void Bits2prm ( - enum Mode mode, // i : AMR mode - Word16 bits[], // i : serial bits (size <= MAX_SERIAL_SIZE) - Word16 prm[] // o : analysis parameters (size <= MAX_PRM_SIZE) -) -{ - Word16 i; - - for (i = 0; i < prmno[mode]; i++) - { - prm[i] = Bin2int (bitno[mode][i], bits); - bits += bitno[mode][i]; - add(0,0); // account for above pointer update - } - - 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] - ------------------------------------------------------------------------------- -*/ - -/*---------------------------------------------------------------------------- -; FUNCTION CODE -----------------------------------------------------------------------------*/ -OSCL_EXPORT_REF void Bits2prm( - enum Mode mode, /* i : AMR mode */ - Word16 bits[], /* i : serial bits (size <= MAX_SERIAL_SIZE) */ - Word16 prm[] /* o : analysis parameters (size <= MAX_PRM_SIZE) */ -) -{ - Word16 i; - - for (i = 0; i < prmno[mode]; i++) - { - prm[i] = Bin2int(bitno[mode][i], bits); - bits += bitno[mode][i]; - } - - return; -} - - - - - - - - |