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Diffstat (limited to 'media/libstagefright/codecs/aacdec/ps_hybrid_synthesis.cpp')
| -rw-r--r-- | media/libstagefright/codecs/aacdec/ps_hybrid_synthesis.cpp | 192 |
1 files changed, 0 insertions, 192 deletions
diff --git a/media/libstagefright/codecs/aacdec/ps_hybrid_synthesis.cpp b/media/libstagefright/codecs/aacdec/ps_hybrid_synthesis.cpp deleted file mode 100644 index 4fbd016..0000000 --- a/media/libstagefright/codecs/aacdec/ps_hybrid_synthesis.cpp +++ /dev/null @@ -1,192 +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_hybrid_synthesis.c - ------------------------------------------------------------------------------- - REVISION HISTORY - - - Who: Date: MM/DD/YYYY - Description: - ------------------------------------------------------------------------------- - INPUT AND OUTPUT DEFINITIONS - - - ------------------------------------------------------------------------------- - FUNCTION DESCRIPTION - - Hybrid synthesis - - _______ ________ - | | _______ | | - ->|Hybrid | LF ---- | |->| Hybrid |--> - | Anal. | | | | | Synth | QMF -> L - ------- o----------------------->| | -------- Synth -QMF | s_k(n) |Stereo |--------------> -Anal. -------------------------->| | - _______ | | | | ________ - | | HF --o | ----------- |Process| | | - ->| Delay | | ->| |-------->| |->| Hybrid |--> - ------- | |decorrelate| d_k(n) | | | Synth | QMF -> R - ---->| |-------->| | -------- Synth - ----------- |_______|--------------> - - ------------------------------------------------------------------------------- - 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 "s_hybrid.h" -#include "ps_hybrid_synthesis.h" - -/*---------------------------------------------------------------------------- -; MACROS -; Define module specific macros here -----------------------------------------------------------------------------*/ - - -/*---------------------------------------------------------------------------- -; DEFINES -; Include all pre-processor statements here. Include conditional -; compile variables also. -----------------------------------------------------------------------------*/ -#ifndef min -#define min(a, b) ((a) < (b) ? (a) : (b)) -#endif - -/*---------------------------------------------------------------------------- -; 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 -----------------------------------------------------------------------------*/ - - -/*---------------------------------------------------------------------------- -; FUNCTION CODE -----------------------------------------------------------------------------*/ -void ps_hybrid_synthesis(const Int32 *mHybridReal, - const Int32 *mHybridImag, - Int32 *mQmfReal, - Int32 *mQmfImag, - HYBRID *hHybrid) -{ - Int32 k; - Int32 band; - HYBRID_RES hybridRes; - - Int32 real; - Int32 imag; - Int32 *ptr_mQmfReal = mQmfReal; - Int32 *ptr_mQmfImag = mQmfImag; - const Int32 *ptr_mHybrid_Re = mHybridReal; - const Int32 *ptr_mHybrid_Im = mHybridImag; - - for (band = 0; band < hHybrid->nQmfBands; band++) - { - hybridRes = (HYBRID_RES)(min(hHybrid->pResolution[band], 6) - 2); - - real = *(ptr_mHybrid_Re++); - real += *(ptr_mHybrid_Re++); - imag = *(ptr_mHybrid_Im++); - imag += *(ptr_mHybrid_Im++); - - for (k = (hybridRes >> 1); k != 0; k--) /* hybridRes = { 2,4,6 } */ - { - real += *(ptr_mHybrid_Re++); - real += *(ptr_mHybrid_Re++); - imag += *(ptr_mHybrid_Im++); - imag += *(ptr_mHybrid_Im++); - } - - *(ptr_mQmfReal++) = real; - *(ptr_mQmfImag++) = imag; - } -} - -#endif - - -#endif - |