diff options
Diffstat (limited to 'media/libstagefright/codecs/aacdec/sbr_decode_envelope.cpp')
| -rw-r--r-- | media/libstagefright/codecs/aacdec/sbr_decode_envelope.cpp | 286 |
1 files changed, 0 insertions, 286 deletions
diff --git a/media/libstagefright/codecs/aacdec/sbr_decode_envelope.cpp b/media/libstagefright/codecs/aacdec/sbr_decode_envelope.cpp deleted file mode 100644 index 771bb32..0000000 --- a/media/libstagefright/codecs/aacdec/sbr_decode_envelope.cpp +++ /dev/null @@ -1,286 +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: sbr_decode_envelope.c - ------------------------------------------------------------------------------- - REVISION HISTORY - - - Who: Date: MM/DD/YYYY - Description: - ------------------------------------------------------------------------------- - INPUT AND OUTPUT DEFINITIONS - - - ------------------------------------------------------------------------------- - FUNCTION DESCRIPTION - - ------------------------------------------------------------------------------- - 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 2002. - ------------------------------------------------------------------------------- - PSEUDO-CODE - ------------------------------------------------------------------------------- -*/ - - -/*---------------------------------------------------------------------------- -; INCLUDES -----------------------------------------------------------------------------*/ - -#ifdef AAC_PLUS - - -#include "sbr_decode_envelope.h" -#include "sbr_constants.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 -----------------------------------------------------------------------------*/ -void mapLowResEnergyVal( - Int32 currVal, - Int32 *prevData, - Int32 offset, - Int32 index, - Int32 res); - -Int32 indexLow2High(Int32 offset, - Int32 index, - Int32 res); - -/*---------------------------------------------------------------------------- -; 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 -----------------------------------------------------------------------------*/ - -/*---------------------------------------------------------------------------- -; FUNCTION CODE -----------------------------------------------------------------------------*/ - - -void sbr_decode_envelope(SBR_FRAME_DATA * hFrameData) - -{ - Int32 i; - Int32 no_of_bands; - Int32 band; - Int32 freqRes; - Int32 *iEnvelope = hFrameData->iEnvelope_man; - Int32 *sfb_nrg_prev = hFrameData->sfb_nrg_prev_man; - - Int32 offset = hFrameData->offset; - Int32 *nSfb = hFrameData->nSfb; - Int32 *domain_vec = hFrameData->domain_vec1; - Int32 *frameInfo = hFrameData->frameInfo; - - - - for (i = 0; i < frameInfo[0]; i++) - { - freqRes = frameInfo[frameInfo[0] + i + 2]; - no_of_bands = nSfb[freqRes]; - - if (domain_vec[i] == 0) - { - mapLowResEnergyVal(*iEnvelope, - sfb_nrg_prev, - offset, - 0, - freqRes); - iEnvelope++; - - for (band = 1; band < no_of_bands; band++) - { - *iEnvelope += *(iEnvelope - 1); - - mapLowResEnergyVal(*iEnvelope, - sfb_nrg_prev, - offset, - band, - freqRes); - iEnvelope++; - } - } - else - { - for (band = 0; band < no_of_bands; band++) - { - *iEnvelope += sfb_nrg_prev[ indexLow2High(offset, band, freqRes)]; - - mapLowResEnergyVal(*iEnvelope, - sfb_nrg_prev, - offset, - band, - freqRes); - iEnvelope++; - } - } - } -} - - - -void mapLowResEnergyVal( - Int32 currVal, - Int32 *prevData, - Int32 offset, - Int32 index, - Int32 res) -{ - Int32 tmp; - - if (res == LO) - { - if (offset >= 0) - { - if (index < offset) - { - prevData[index] = currVal; - } - else - { - tmp = (index << 1) - offset; - prevData[tmp ] = currVal; - prevData[tmp +1 ] = currVal; - } - } - else - { - offset = -offset; - if (index < offset) - { - tmp = (index << 1) + index; - prevData[tmp ] = currVal; - prevData[tmp + 1] = currVal; - prevData[tmp + 2] = currVal; - } - else - { - tmp = (index << 1) + offset; - prevData[tmp ] = currVal; - prevData[tmp + 1] = currVal; - } - } - } - else - { - prevData[index] = currVal; - } -} - - -Int32 indexLow2High(Int32 offset, - Int32 index, - Int32 res) -{ - if (res == LO) - { - if (offset >= 0) - { - if (index < offset) - { - return(index); - } - else - { - return((index << 1) - offset); - } - } - else - { - offset = -offset; - if (index < offset) - { - return((index << 1) + index); - } - else - { - return((index << 1) + offset); - } - } - } - else - { - return(index); - } -} - -#endif - |