diff options
Diffstat (limited to 'media/libstagefright/codecs/aacdec/ps_read_data.cpp')
| -rw-r--r-- | media/libstagefright/codecs/aacdec/ps_read_data.cpp | 388 |
1 files changed, 0 insertions, 388 deletions
diff --git a/media/libstagefright/codecs/aacdec/ps_read_data.cpp b/media/libstagefright/codecs/aacdec/ps_read_data.cpp deleted file mode 100644 index c49eb3d..0000000 --- a/media/libstagefright/codecs/aacdec/ps_read_data.cpp +++ /dev/null @@ -1,388 +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. - * ------------------------------------------------------------------- - */ -/* - - Filename: ps_read_data.c - - ------------------------------------------------------------------------------- - REVISION HISTORY - - - Who: Date: MM/DD/YYYY - Description: - ------------------------------------------------------------------------------- - INPUT AND OUTPUT DEFINITIONS - - - ------------------------------------------------------------------------------- - FUNCTION DESCRIPTION - - Decodes parametric stereo - ------------------------------------------------------------------------------- - REQUIREMENTS - - ------------------------------------------------------------------------------- - REFERENCES - -SC 29 Software Copyright Licencing Disclaimer: - -This software module was originally developed by - Coding Technologies - -and edited by - - - -in the course of development of the ISO/IEC 13818-7 and ISO/IEC 14496-3 -standards for reference purposes and its performance may not have been -optimized. This software module is an implementation of one or more tools as -specified by the ISO/IEC 13818-7 and ISO/IEC 14496-3 standards. -ISO/IEC gives users free license to this software module or modifications -thereof for use in products claiming conformance to audiovisual and -image-coding related ITU Recommendations and/or ISO/IEC International -Standards. ISO/IEC gives users the same free license to this software module or -modifications thereof for research purposes and further ISO/IEC standardisation. -Those intending to use this software module in products are advised that its -use may infringe existing patents. ISO/IEC have no liability for use of this -software module or modifications thereof. Copyright is not released for -products that do not conform to audiovisual and image-coding related ITU -Recommendations and/or ISO/IEC International Standards. -The original developer retains full right to modify and use the code for its -own purpose, assign or donate the code to a third party and to inhibit third -parties from using the code for products that do not conform to audiovisual and -image-coding related ITU Recommendations and/or ISO/IEC International Standards. -This copyright notice must be included in all copies or derivative works. -Copyright (c) ISO/IEC 2003. - ------------------------------------------------------------------------------- - PSEUDO-CODE - ------------------------------------------------------------------------------- -*/ - - -/*---------------------------------------------------------------------------- -; INCLUDES -----------------------------------------------------------------------------*/ - -#ifdef AAC_PLUS - -#ifdef PARAMETRICSTEREO - -#include "pv_audio_type_defs.h" -#include "buf_getbits.h" -#include "s_bit_buffer.h" -#include "s_huffman.h" -#include "aac_mem_funcs.h" -#include "s_ps_dec.h" -#include "sbr_decode_huff_cw.h" -#include "ps_decode_bs_utils.h" -#include "ps_bstr_decoding.h" -#include "ps_read_data.h" -/*---------------------------------------------------------------------------- -; MACROS -; Define module specific macros here -----------------------------------------------------------------------------*/ - - -/*---------------------------------------------------------------------------- -; DEFINES -; Include all pre-processor statements here. Include conditional -; compile variables also. -----------------------------------------------------------------------------*/ - -/*---------------------------------------------------------------------------- -; LOCAL FUNCTION DEFINITIONS -; Function Prototype declaration -----------------------------------------------------------------------------*/ - -/*---------------------------------------------------------------------------- -; LOCAL STORE/BUFFER/POINTER DEFINITIONS -; Variable declaration - defined here and used outside this module -----------------------------------------------------------------------------*/ - - -/*---------------------------------------------------------------------------- -; EXTERNAL FUNCTION REFERENCES -; Declare functions defined elsewhere and referenced in this module -----------------------------------------------------------------------------*/ - - -/*---------------------------------------------------------------------------- -; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES -; Declare variables used in this module but defined elsewhere -----------------------------------------------------------------------------*/ - -/* IID & ICC Huffman codebooks */ -const Char aBookPsIidTimeDecode[28][2] = -{ - { -64, 1 }, { -65, 2 }, { -63, 3 }, { -66, 4 }, - { -62, 5 }, { -67, 6 }, { -61, 7 }, { -68, 8 }, - { -60, 9 }, { -69, 10 }, { -59, 11 }, { -70, 12 }, - { -58, 13 }, { -57, 14 }, { -71, 15 }, { 16, 17 }, - { -56, -72 }, { 18, 21 }, { 19, 20 }, { -55, -78 }, - { -77, -76 }, { 22, 25 }, { 23, 24 }, { -75, -74 }, - { -73, -54 }, { 26, 27 }, { -53, -52 }, { -51, -50 } -}; - -const Char aBookPsIidFreqDecode[28][2] = -{ - { -64, 1 }, { 2, 3 }, { -63, -65 }, { 4, 5 }, - { -62, -66 }, { 6, 7 }, { -61, -67 }, { 8, 9 }, - { -68, -60 }, { -59, 10 }, { -69, 11 }, { -58, 12 }, - { -70, 13 }, { -71, 14 }, { -57, 15 }, { 16, 17 }, - { -56, -72 }, { 18, 19 }, { -55, -54 }, { 20, 21 }, - { -73, -53 }, { 22, 24 }, { -74, 23 }, { -75, -78 }, - { 25, 26 }, { -77, -76 }, { -52, 27 }, { -51, -50 } -}; - -const Char aBookPsIccTimeDecode[14][2] = -{ - { -64, 1 }, { -63, 2 }, { -65, 3 }, { -62, 4 }, - { -66, 5 }, { -61, 6 }, { -67, 7 }, { -60, 8 }, - { -68, 9 }, { -59, 10 }, { -69, 11 }, { -58, 12 }, - { -70, 13 }, { -71, -57 } -}; - -const Char aBookPsIccFreqDecode[14][2] = -{ - { -64, 1 }, { -63, 2 }, { -65, 3 }, { -62, 4 }, - { -66, 5 }, { -61, 6 }, { -67, 7 }, { -60, 8 }, - { -59, 9 }, { -68, 10 }, { -58, 11 }, { -69, 12 }, - { -57, 13 }, { -70, -71 } -}; - -const Char aBookPsIidFineTimeDecode[60][2] = -{ - { 1, -64 }, { -63, 2 }, { 3, -65 }, { 4, 59 }, - { 5, 7 }, { 6, -67 }, { -68, -60 }, { -61, 8 }, - { 9, 11 }, { -59, 10 }, { -70, -58 }, { 12, 41 }, - { 13, 20 }, { 14, -71 }, { -55, 15 }, { -53, 16 }, - { 17, -77 }, { 18, 19 }, { -85, -84 }, { -46, -45 }, - { -57, 21 }, { 22, 40 }, { 23, 29 }, { -51, 24 }, - { 25, 26 }, { -83, -82 }, { 27, 28 }, { -90, -38 }, - { -92, -91 }, { 30, 37 }, { 31, 34 }, { 32, 33 }, - { -35, -34 }, { -37, -36 }, { 35, 36 }, { -94, -93 }, - { -89, -39 }, { 38, -79 }, { 39, -81 }, { -88, -40 }, - { -74, -54 }, { 42, -69 }, { 43, 44 }, { -72, -56 }, - { 45, 52 }, { 46, 50 }, { 47, -76 }, { -49, 48 }, - { -47, 49 }, { -87, -41 }, { -52, 51 }, { -78, -50 }, - { 53, -73 }, { 54, -75 }, { 55, 57 }, { 56, -80 }, - { -86, -42 }, { -48, 58 }, { -44, -43 }, { -66, -62 } -}; - -const Char aBookPsIidFineFreqDecode[60][2] = -{ - { 1, -64 }, { 2, 4 }, { 3, -65 }, { -66, -62 }, - { -63, 5 }, { 6, 7 }, { -67, -61 }, { 8, 9 }, - { -68, -60 }, { 10, 11 }, { -69, -59 }, { 12, 13 }, - { -70, -58 }, { 14, 18 }, { -57, 15 }, { 16, -72 }, - { -54, 17 }, { -75, -53 }, { 19, 37 }, { -56, 20 }, - { 21, -73 }, { 22, 29 }, { 23, -76 }, { 24, -78 }, - { 25, 28 }, { 26, 27 }, { -85, -43 }, { -83, -45 }, - { -81, -47 }, { -52, 30 }, { -50, 31 }, { 32, -79 }, - { 33, 34 }, { -82, -46 }, { 35, 36 }, { -90, -89 }, - { -92, -91 }, { 38, -71 }, { -55, 39 }, { 40, -74 }, - { 41, 50 }, { 42, -77 }, { -49, 43 }, { 44, 47 }, - { 45, 46 }, { -86, -42 }, { -88, -87 }, { 48, 49 }, - { -39, -38 }, { -41, -40 }, { -51, 51 }, { 52, 59 }, - { 53, 56 }, { 54, 55 }, { -35, -34 }, { -37, -36 }, - { 57, 58 }, { -94, -93 }, { -84, -44 }, { -80, -48 } -}; - - - - - - -/*---------------------------------------------------------------------------- -; FUNCTION CODE -----------------------------------------------------------------------------*/ - -Int32 ps_read_data(STRUCT_PS_DEC *ps_dec, - BIT_BUFFER * hBitBuf, - Int32 nBitsLeft) - -{ - Int gr; - UInt32 env; - UInt32 dtFlag; - Int32 startbits; - SbrHuffman CurrentTable; - - if (!ps_dec) - { - return 0; - } - - startbits = GetNrBitsAvailable(hBitBuf); - - if (buf_get_1bit(hBitBuf)) /* Enable Header */ - { - ps_dec->bEnableIid = buf_get_1bit(hBitBuf); - - if (ps_dec->bEnableIid) - { - ps_dec->freqResIid = buf_getbits(hBitBuf, 3); - - if (ps_dec->freqResIid > 2) - { - ps_dec->bFineIidQ = 1; - ps_dec->freqResIid -= 3; - } - else - { - ps_dec->bFineIidQ = 0; - } - } - - ps_dec->bEnableIcc = buf_get_1bit(hBitBuf); - if (ps_dec->bEnableIcc) - { - ps_dec->freqResIcc = buf_getbits(hBitBuf, 3); - - if (ps_dec->freqResIcc > 2) - { - ps_dec->freqResIcc -= 3; - } - } - ps_dec->bEnableExt = buf_get_1bit(hBitBuf); - } - - ps_dec->bFrameClass = buf_get_1bit(hBitBuf); - if (ps_dec->bFrameClass == 0) - { - ps_dec->noEnv = aFixNoEnvDecode[ buf_getbits(hBitBuf, 2)]; - } - else - { - ps_dec->noEnv = 1 + buf_getbits(hBitBuf, 2); - for (env = 1; env < ps_dec->noEnv + 1; env++) - { - ps_dec->aEnvStartStop[env] = (buf_getbits(hBitBuf, 5)) + 1; - } - } - - if ((ps_dec->freqResIid > 2) || (ps_dec->freqResIcc > 2)) - { - - ps_dec->bPsDataAvail = 0; - - nBitsLeft -= startbits - GetNrBitsAvailable(hBitBuf); - while (nBitsLeft) - { - int i = nBitsLeft; - if (i > 8) - { - i = 8; - } - buf_getbits(hBitBuf, i); - nBitsLeft -= i; - } - return (startbits - GetNrBitsAvailable(hBitBuf)); - } - - if (ps_dec->bEnableIid) - { - for (env = 0; env < ps_dec->noEnv; env++) - { - dtFlag = buf_get_1bit(hBitBuf); - - if (!dtFlag) - { - if (ps_dec->bFineIidQ) - { - CurrentTable = aBookPsIidFineFreqDecode; - } - else - { - CurrentTable = aBookPsIidFreqDecode; - } - } - else - { - if (ps_dec->bFineIidQ) - { - CurrentTable = aBookPsIidFineTimeDecode; - } - else - { - CurrentTable = aBookPsIidTimeDecode; - } - } - - for (gr = 0; gr < aNoIidBins[ps_dec->freqResIid]; gr++) - { - ps_dec->aaIidIndex[env][gr] = sbr_decode_huff_cw(CurrentTable, hBitBuf); - } - - ps_dec->abIidDtFlag[env] = dtFlag; - } - } - - if (ps_dec->bEnableIcc) - { - for (env = 0; env < ps_dec->noEnv; env++) - { - dtFlag = buf_get_1bit(hBitBuf); - if (!dtFlag) - { - CurrentTable = aBookPsIccFreqDecode; - } - else - { - CurrentTable = aBookPsIccTimeDecode; - } - for (gr = 0; gr < aNoIccBins[ps_dec->freqResIcc]; gr++) - { - ps_dec->aaIccIndex[env][gr] = sbr_decode_huff_cw(CurrentTable, hBitBuf); - } - - ps_dec->abIccDtFlag[env] = dtFlag; - } - } - - if (ps_dec->bEnableExt) - { - - int cnt; - - cnt = (int)buf_getbits(hBitBuf, 4); - - if (cnt == 15) - { - cnt += (int)buf_getbits(hBitBuf, 8); - } - - hBitBuf->nrBitsRead += (cnt << 3); - } - - ps_dec->bPsDataAvail = 1; - - return (startbits - GetNrBitsAvailable(hBitBuf)); -} - -#endif - - -#endif - |