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diff --git a/media/libstagefright/codecs/aacdec/sbr_envelope_unmapping.cpp b/media/libstagefright/codecs/aacdec/sbr_envelope_unmapping.cpp
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index 7fce46b..0000000
--- a/media/libstagefright/codecs/aacdec/sbr_envelope_unmapping.cpp
+++ /dev/null
@@ -1,427 +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_envelope_unmapping.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_envelope_unmapping.h"
-#include "sbr_constants.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
-----------------------------------------------------------------------------*/
-
-#define R_SHIFT 30
-#define Qfmt(x) (Int32)(x*((Int32)1<<R_SHIFT) + (x>=0?0.5F:-0.5F))
-
-/*
- * 1./(1+2.^-[0:10])
- */
-const Int32 one_over_one_plus_two_to_n[11] =
-{
- Qfmt(0.50000000000000F), Qfmt(0.66666666666667F), Qfmt(0.80000000000000F),
- Qfmt(0.88888888888889F), Qfmt(0.94117647058824F), Qfmt(0.96969696969697F),
- Qfmt(0.98461538461538F), Qfmt(0.99224806201550F), Qfmt(0.99610894941634F),
- Qfmt(0.99805068226121F), Qfmt(0.99902439024390F)
-};
-
-/*
- * 1./(1+2.^[0.5:-1:-10.5])
- */
-const Int32 one_over_one_plus_sq_2_by_two_to_n[12] =
-{
- Qfmt(0.41421356237310F), Qfmt(0.58578643762690F), Qfmt(0.73879612503626F),
- Qfmt(0.84977889517767F), Qfmt(0.91878969685839F), Qfmt(0.95767628767521F),
- Qfmt(0.97838063800882F), Qfmt(0.98907219289563F), Qfmt(0.99450607818892F),
- Qfmt(0.99724547251514F), Qfmt(0.99862083678608F), Qfmt(0.99930994254211F)
-};
-
-/*----------------------------------------------------------------------------
-; 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_envelope_unmapping(SBR_FRAME_DATA * hFrameData1,
- SBR_FRAME_DATA * hFrameData2)
-
-{
- Int32 i;
- Int32 tempLeft;
- Int32 tempRight;
-
- Int32 tmp;
- Int32 *iEnvelopeLeft_man = hFrameData1->iEnvelope_man;
- Int32 *iEnvelopeLeft_exp = hFrameData1->iEnvelope_exp;
- Int32 *noiseFloorLeft_man = hFrameData1->sbrNoiseFloorLevel_man;
- Int32 *noiseFloorLeft_exp = hFrameData1->sbrNoiseFloorLevel_exp;
-
- Int32 *iEnvelopeRight_man = hFrameData2->iEnvelope_man;
- Int32 *iEnvelopeRight_exp = hFrameData2->iEnvelope_exp;
- Int32 *noiseFloorRight_man = hFrameData2->sbrNoiseFloorLevel_man;
- Int32 *noiseFloorRight_exp = hFrameData2->sbrNoiseFloorLevel_exp;
-
-
- if (hFrameData2->ampRes)
- {
- for (i = 0; i < hFrameData1->nScaleFactors; i++)
- {
- tempRight = iEnvelopeRight_man[i];
- tempLeft = iEnvelopeLeft_man[i];
- /* iEnvelope[i] always positive 6 bits max */
-
- iEnvelopeLeft_exp[i] = tempLeft + 7;
-
- iEnvelopeRight_exp[i] = tempRight - 12;
- iEnvelopeRight_man[i] = Qfmt(1.000F);
-
- /*
- * iEnvelopeRight[i] = tempLeft / (1 + tempRight);
- * iEnvelopeLeft[i] = tempRight * iEnvelopeRight[i];
- *
- *
- * iEnvelopeRight[i] = k*2^n/(1+2^m) = k*2^(n-m)/(1 + 2^-m);
- * where k = 1 or sqrt(2)
- */
- if (iEnvelopeRight_exp[i] >= 0)
- {
- if (iEnvelopeRight_exp[i] < 11)
- {
- iEnvelopeRight_man[i] = one_over_one_plus_two_to_n[ iEnvelopeRight_exp[i]];
- }
- else /* 1/(1+2^-m) == 1 - 2^-m ; for m >= 10 */
- {
- iEnvelopeRight_man[i] -= (Qfmt(1.000F) >> iEnvelopeRight_exp[i]);
- }
- iEnvelopeRight_exp[i] = iEnvelopeLeft_exp[i] - iEnvelopeRight_exp[i];
- }
- else
- {
- if (iEnvelopeRight_exp[i] > -11)
- {
- iEnvelopeRight_man[i] -= one_over_one_plus_two_to_n[ -iEnvelopeRight_exp[i]];
- iEnvelopeRight_exp[i] = iEnvelopeLeft_exp[i] - iEnvelopeRight_exp[i];
-
- }
- else /* 1/(1+2^m) == 2^-m ; for m >= 10 */
- {
- iEnvelopeRight_exp[i] = iEnvelopeLeft_exp[i];
- iEnvelopeLeft_exp[i] = 0;
- }
- }
-
- iEnvelopeLeft_man[i] = iEnvelopeRight_man[i];
- }
- }
- else
- {
- for (i = 0; i < hFrameData1->nScaleFactors; i++)
- {
- /* iEnvelope[i] always positive 7 bits max */
- tempRight = iEnvelopeRight_man[i];
- tempLeft = iEnvelopeLeft_man[i];
-
- iEnvelopeLeft_exp[i] = (tempLeft >> 1) + 7;
- if (tempLeft & 0x1) /* odd */
- {
- iEnvelopeLeft_man[i] = Qfmt(1.41421356237310F);
- }
- else
- {
- iEnvelopeLeft_man[i] = Qfmt(1.000F);
- }
-
- iEnvelopeRight_exp[i] = (tempRight >> 1) - 12;
- if (tempRight & 0x1) /* odd */
- {
- if (iEnvelopeRight_exp[i] > 0)
- {
- iEnvelopeRight_man[i] = Qfmt(1.41421356237310F);
- }
- else
- {
- iEnvelopeRight_man[i] = Qfmt(0.7071067811865F);
- }
- }
- else
- {
- iEnvelopeRight_man[i] = Qfmt(1.000F);
- }
-
- if (iEnvelopeRight_man[i] == Qfmt(1.000F))
- {
-
- /*
- * iEnvelopeRight[i] = tempLeft / (1 + tempRight);
- * iEnvelopeLeft[i] = tempRight * iEnvelopeRight[i];
- *
- *
- * iEnvelopeRight[i] = k*2^n/(1+2^m) = k*2^(n-m)/(1 + 2^-m);
- * where k = 1 or sqrt(2)
- */
- if (iEnvelopeRight_exp[i] >= 0)
- {
- if (iEnvelopeRight_exp[i] < 11)
- {
- iEnvelopeRight_man[i] = one_over_one_plus_two_to_n[ iEnvelopeRight_exp[i]];
- }
- else /* 1/(1+2^-m) == 1 - 2^-m ; for m >= 10 */
- {
- iEnvelopeRight_man[i] -= (Qfmt(1.000F) >> iEnvelopeRight_exp[i]);
- }
- iEnvelopeRight_exp[i] = iEnvelopeLeft_exp[i] - iEnvelopeRight_exp[i];
-
- }
- else
- {
- if (iEnvelopeRight_exp[i] > -11)
- {
- iEnvelopeRight_man[i] -= one_over_one_plus_two_to_n[ -iEnvelopeRight_exp[i]];
- iEnvelopeRight_exp[i] = iEnvelopeLeft_exp[i] - iEnvelopeRight_exp[i];
- }
- else /* 1/(1+2^m) == 2^-m ; for m >= 10 */
- {
- iEnvelopeRight_exp[i] = iEnvelopeLeft_exp[i];
- iEnvelopeLeft_exp[i] = 0;
- }
- }
-
- /*
- * apply "k" factor 1 or sqrt(2)
- *
- * (2^m)*2*k*2^n/(1+2^m) = k*2^(n+1)/(1 + 2^-m);
- *
- */
- if (iEnvelopeLeft_man[i] != Qfmt(1.000F))
- {
- iEnvelopeRight_man[i] = fxp_mul32_Q30(iEnvelopeLeft_man[i], iEnvelopeRight_man[i]);
- }
-
- iEnvelopeLeft_man[i] = iEnvelopeRight_man[i];
-
- }
- else
- {
-
- /*
- * iEnvelopeRight[i] = tempLeft / (1 + tempRight);
- * iEnvelopeLeft[i] = tempRight * iEnvelopeRight[i];
- *
- *
- * iEnvelopeRight[i] = k*2^n/(1+q2^m) = k*2^(n-m)/(1 + q2^-m);
- * where k = 1 or sqrt(2)
- * and q = sqrt(2)
- */
- if (iEnvelopeRight_exp[i] >= 0)
- {
- if (iEnvelopeRight_exp[i] < 12)
- {
- iEnvelopeRight_man[i] = one_over_one_plus_sq_2_by_two_to_n[ iEnvelopeRight_exp[i]];
- }
- else /* 1/(1+2^-m) == 1 - 2^-m ; for m >= 11 */
- {
- iEnvelopeRight_man[i] = Qfmt(1.000F) - (Qfmt(1.000F) >> iEnvelopeRight_exp[i]);
- }
- }
- else
- {
- if (iEnvelopeRight_exp[i] > -12)
- {
- iEnvelopeRight_man[i] = Qfmt(1.000F) - one_over_one_plus_sq_2_by_two_to_n[ -iEnvelopeRight_exp[i]];
- }
- else /* 1/(1+2^m) == 2^-m ; for m >= 11 */
- {
- iEnvelopeRight_man[i] = Qfmt(1.000F);
- iEnvelopeRight_exp[i] = 0;
- }
- }
-
- iEnvelopeRight_exp[i] = iEnvelopeLeft_exp[i] - iEnvelopeRight_exp[i];
-
- /*
- * apply "k" factor 1 or sqrt(2)
- *
- * Right == k*2^(n-m)/(1 + q2^-m)
- * Left == (q2^m)*k*2^n/(1 + q2^m) = qk*2^n/(1 + q2^-m);
- */
- if (iEnvelopeLeft_man[i] != Qfmt(1.000F))
- {
- /*
- * k/(1 + q2^-m);
- */
- tmp = iEnvelopeRight_man[i];
- iEnvelopeRight_man[i] = fxp_mul32_Q30(iEnvelopeLeft_man[i], iEnvelopeRight_man[i]);
- iEnvelopeLeft_man[i] = tmp;
- iEnvelopeLeft_exp[i] += 1; /* extra one due to sqrt(2)^2 */
- }
- else
- {
- iEnvelopeLeft_man[i] = fxp_mul32_Q30(iEnvelopeRight_man[i], Qfmt(1.41421356237310F));
- }
-
- } /* end of if (iEnvelopeRight_man[i] == Qfmt( 1.000F) ) */
- } /* end of for loop */
- } /* end if (hFrameData2->ampRes) */
-
-
- for (i = 0; i < hFrameData1->nNoiseFactors; i++)
- {
-
- noiseFloorLeft_exp[i] = NOISE_FLOOR_OFFSET_PLUS_1 - noiseFloorLeft_man[i];
- noiseFloorRight_exp[i] = noiseFloorRight_man[i] - SBR_ENERGY_PAN_OFFSET_INT;
-
-
- /*
- * noiseFloorRight[i] = tempLeft / (1.0f + tempRight);
- * noiseFloorLeft[i] = tempRight*noiseFloorRight[i];
- *
- *
- * noiseFloorRight[i] = 2^n/(1+2^m) = 2^(n-m)/(1 + 2^-m);
- */
- if (noiseFloorRight_exp[i] >= 0)
- {
- if (noiseFloorRight_exp[i] < 11)
- {
- noiseFloorRight_man[i] = one_over_one_plus_two_to_n[ noiseFloorRight_exp[i]];
- }
- else /* 1/(1+2^-m) == 1 - 2^-m ; for m >= 10 */
- {
- noiseFloorRight_man[i] = Qfmt(1.000F) - (Qfmt(1.000F) >> noiseFloorRight_exp[i]);
- }
- }
- else
- {
- if (noiseFloorRight_exp[i] > -11)
- {
- noiseFloorRight_man[i] = Qfmt(1.000F) - one_over_one_plus_two_to_n[ -noiseFloorRight_exp[i]];
- }
- else /* 1/(1+2^m) == 2^-m ; for m >= 10 */
- {
- noiseFloorRight_man[i] = Qfmt(1.000F);
- noiseFloorRight_exp[i] = 0;
- }
- }
-
- noiseFloorRight_exp[i] = noiseFloorLeft_exp[i] - noiseFloorRight_exp[i];
-
- /*
- * (2^m)*2^n/(1+2^m) = 2^n/(1 + 2^-m);
- */
-
- noiseFloorLeft_man[i] = noiseFloorRight_man[i];
- noiseFloorLeft_exp[i] = noiseFloorLeft_exp[i];
-
- }
-}
-
-#endif
-
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