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-rw-r--r--media/libstagefright/codecs/aacdec/calc_sbr_anafilterbank.cpp360
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diff --git a/media/libstagefright/codecs/aacdec/calc_sbr_anafilterbank.cpp b/media/libstagefright/codecs/aacdec/calc_sbr_anafilterbank.cpp
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index 5ec3f69..0000000
--- a/media/libstagefright/codecs/aacdec/calc_sbr_anafilterbank.cpp
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@@ -1,360 +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: calc_sbr_anafilterbank.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 "calc_sbr_anafilterbank.h"
-#include "qmf_filterbank_coeff.h"
-#include "analysis_sub_band.h"
-
-#include "aac_mem_funcs.h"
-#include "fxp_mul32.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
-----------------------------------------------------------------------------*/
-
-/*----------------------------------------------------------------------------
-; FUNCTION CODE
-----------------------------------------------------------------------------*/
-
-void calc_sbr_anafilterbank_LC(Int32 * Sr,
- Int16 * X,
- Int32 scratch_mem[][64],
- Int32 maxBand)
-{
-
- Int i;
- Int32 *p_Y_1;
- Int32 *p_Y_2;
-
- Int16 * pt_X_1;
- Int16 * pt_X_2;
- Int32 realAccu1;
- Int32 realAccu2;
-
- Int32 tmp1;
- Int32 tmp2;
-
-
- const Int32 * pt_C;
-
- p_Y_1 = scratch_mem[0];
-
-
- p_Y_2 = p_Y_1 + 63;
- pt_C = &sbrDecoderFilterbankCoefficients_an_filt_LC[0];
-
- pt_X_1 = X;
-
-
- realAccu1 = fxp_mul32_by_16(Qfmt27(-0.51075594183097F), pt_X_1[-192]);
-
- realAccu1 = fxp_mac32_by_16(Qfmt27(-0.51075594183097F), -pt_X_1[-128], realAccu1);
- realAccu1 = fxp_mac32_by_16(Qfmt27(-0.01876919066980F), pt_X_1[-256], realAccu1);
- *(p_Y_1++) = fxp_mac32_by_16(Qfmt27(-0.01876919066980F), -pt_X_1[ -64], realAccu1);
-
-
- /* create array Y */
-
- pt_X_1 = &X[-1];
- pt_X_2 = &X[-319];
-
-
- for (i = 15; i != 0; i--)
- {
- tmp1 = *(pt_X_1--);
- tmp2 = *(pt_X_2++);
-
- realAccu1 = fxp_mul32_by_16(*(pt_C), tmp1);
- realAccu2 = fxp_mul32_by_16(*(pt_C++), tmp2);
- tmp1 = pt_X_1[ -63];
- tmp2 = pt_X_2[ +63];
- realAccu1 = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
- realAccu2 = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
- tmp1 = pt_X_1[ -127];
- tmp2 = pt_X_2[ +127];
- realAccu1 = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
- realAccu2 = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
- tmp1 = pt_X_1[ -191];
- tmp2 = pt_X_2[ +191];
- realAccu1 = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
- realAccu2 = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
- tmp1 = pt_X_1[ -255];
- tmp2 = pt_X_2[ +255];
- *(p_Y_1++) = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
- *(p_Y_2--) = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
-
- tmp1 = *(pt_X_1--);
- tmp2 = *(pt_X_2++);
- realAccu1 = fxp_mul32_by_16(*(pt_C), tmp1);
- realAccu2 = fxp_mul32_by_16(*(pt_C++), tmp2);
-
- tmp1 = pt_X_1[ -63];
- tmp2 = pt_X_2[ +63];
- realAccu1 = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
- realAccu2 = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
- tmp1 = pt_X_1[ -127];
- tmp2 = pt_X_2[ +127];
- realAccu1 = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
- realAccu2 = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
- tmp1 = pt_X_1[ -191];
- tmp2 = pt_X_2[ +191];
- realAccu1 = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
- realAccu2 = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
- tmp1 = pt_X_1[ -255];
- tmp2 = pt_X_2[ +255];
- *(p_Y_1++) = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
- *(p_Y_2--) = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
-
- }
-
-
- tmp1 = *(pt_X_1--);
- tmp2 = *(pt_X_2++);
- realAccu1 = fxp_mul32_by_16(*(pt_C), tmp1);
- realAccu2 = fxp_mul32_by_16(*(pt_C++), tmp2);
-
- tmp1 = pt_X_1[ -63];
- tmp2 = pt_X_2[ +63];
- realAccu1 = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
- realAccu2 = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
- tmp1 = pt_X_1[ -127];
- tmp2 = pt_X_2[ +127];
- realAccu1 = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
- realAccu2 = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
- tmp1 = pt_X_1[ -191];
- tmp2 = pt_X_2[ +191];
- realAccu1 = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
- realAccu2 = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
- tmp1 = pt_X_1[ -255];
- tmp2 = pt_X_2[ +255];
- *(p_Y_1++) = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
- *(p_Y_2--) = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
-
-
- pt_X_1 = X;
-
- realAccu2 = fxp_mul32_by_16(Qfmt27(0.00370548843500F), X[ -32]);
-
- realAccu2 = fxp_mac32_by_16(Qfmt27(0.00370548843500F), pt_X_1[-288], realAccu2);
- realAccu2 = fxp_mac32_by_16(Qfmt27(0.09949460091720F), pt_X_1[ -96], realAccu2);
- realAccu2 = fxp_mac32_by_16(Qfmt27(0.09949460091720F), pt_X_1[-224], realAccu2);
- *(p_Y_1++) = fxp_mac32_by_16(Qfmt27(1.20736865027288F), pt_X_1[-160], realAccu2);
-
-
- analysis_sub_band_LC(scratch_mem[0],
- Sr,
- maxBand,
- (Int32(*)[64])scratch_mem[1]);
-
-}
-
-
-
-#ifdef HQ_SBR
-
-void calc_sbr_anafilterbank(Int32 * Sr,
- Int32 * Si,
- Int16 * X,
- Int32 scratch_mem[][64],
- Int32 maxBand)
-{
- Int i;
- Int32 *p_Y_1;
- Int32 *p_Y_2;
-
-
-
-
- const Int32 * pt_C;
- Int16 * pt_X_1;
- Int16 * pt_X_2;
- Int32 realAccu1;
- Int32 realAccu2;
-
- Int32 tmp1;
- Int32 tmp2;
-
-
- p_Y_1 = scratch_mem[0];
-
-
- p_Y_2 = p_Y_1 + 63;
- pt_C = &sbrDecoderFilterbankCoefficients_an_filt[0];
-
- realAccu1 = fxp_mul32_by_16(Qfmt27(-0.36115899F), X[-192]);
-
-
- realAccu1 = fxp_mac32_by_16(Qfmt27(-0.36115899F), -X[-128], realAccu1);
- realAccu1 = fxp_mac32_by_16(Qfmt27(-0.013271822F), X[-256], realAccu1);
- *(p_Y_1++) = fxp_mac32_by_16(Qfmt27(-0.013271822F), -X[ -64], realAccu1);
-
- /* create array Y */
-
- pt_X_1 = &X[-1];
- pt_X_2 = &X[-319];
-
-
- for (i = 31; i != 0; i--)
- {
- tmp1 = *(pt_X_1--);
- tmp2 = *(pt_X_2++);
- realAccu1 = fxp_mul32_by_16(*(pt_C), tmp1);
- realAccu2 = fxp_mul32_by_16(*(pt_C++), tmp2);
- tmp1 = pt_X_1[ -63];
- tmp2 = pt_X_2[ 63];
- realAccu1 = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
- realAccu2 = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
- tmp1 = pt_X_1[ -127];
- tmp2 = pt_X_2[ 127];
- realAccu1 = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
- realAccu2 = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
- tmp1 = pt_X_1[ -191];
- tmp2 = pt_X_2[ 191];
- realAccu1 = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
- realAccu2 = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
- tmp1 = pt_X_1[ -255];
- tmp2 = pt_X_2[ 255];
- *(p_Y_1++) = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
- *(p_Y_2--) = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
- }
-
-
- realAccu2 = fxp_mul32_by_16(Qfmt27(0.002620176F), X[ -32]);
- realAccu2 = fxp_mac32_by_16(Qfmt27(0.002620176F), X[-288], realAccu2);
- realAccu2 = fxp_mac32_by_16(Qfmt27(0.070353307F), X[ -96], realAccu2);
- realAccu2 = fxp_mac32_by_16(Qfmt27(0.070353307F), X[-224], realAccu2);
-
-
- *(p_Y_1++) = fxp_mac32_by_16(Qfmt27(0.85373856F), (X[-160]), realAccu2);
-
-
- analysis_sub_band(scratch_mem[0],
- Sr,
- Si,
- maxBand,
- (Int32(*)[64])scratch_mem[1]);
-
-}
-
-
-#endif
-
-
-
-#endif /* AAC_PLUS */
-
generated by cgit v1.1 at 2024-06-07 09:40:48 +0000