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authorFraunhofer IIS FDK <audio-fdk@iis.fraunhofer.de>2018-02-26 20:17:00 +0100
committerJean-Michel Trivi <jmtrivi@google.com>2018-04-19 11:21:15 -0700
commit6cfabd35363c3ef5e3b209b867169a500b3ccc3c (patch)
tree01c0a19f2735e8b5d2407555fe992d4230d089eb /libSBRenc/src/sbrenc_freq_sca.cpp
parent6288a1e34c4dede4c2806beb1736ece6580558c7 (diff)
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Upgrade to FDKv2
Bug: 71430241 Test: CTS DecoderTest and DecoderTestAacDrc original-Change-Id: Iaa20f749b8a04d553b20247cfe1a8930ebbabe30 Apply clang-format also on header files. original-Change-Id: I14de1ef16bbc79ec0283e745f98356a10efeb2e4 Fixes for MPEG-D DRC original-Change-Id: If1de2d74bbbac84b3f67de3b88b83f6a23b8a15c Catch unsupported tw_mdct at an early stage original-Change-Id: Ied9dd00d754162a0e3ca1ae3e6b854315d818afe Fixing PVC transition frames original-Change-Id: Ib75725abe39252806c32d71176308f2c03547a4e Move qmf bands sanity check original-Change-Id: Iab540c3013c174d9490d2ae100a4576f51d8dbc4 Initialize scaling variable original-Change-Id: I3c4087101b70e998c71c1689b122b0d7762e0f9e Add 16 qmf band configuration to getSlotNrgHQ() original-Change-Id: I49a5d30f703a1b126ff163df9656db2540df21f1 Always apply byte alignment at the end of the AudioMuxElement original-Change-Id: I42d560287506d65d4c3de8bfe3eb9a4ebeb4efc7 Setup SBR element only if no parse error exists original-Change-Id: I1915b73704bc80ab882b9173d6bec59cbd073676 Additional array index check in HCR original-Change-Id: I18cc6e501ea683b5009f1bbee26de8ddd04d8267 Fix fade-in index selection in concealment module original-Change-Id: Ibf802ed6ed8c05e9257e1f3b6d0ac1162e9b81c1 Enable explicit backward compatible parser for AAC_LD original-Change-Id: I27e9c678dcb5d40ed760a6d1e06609563d02482d Skip spatial specific config in explicit backward compatible ASC original-Change-Id: Iff7cc365561319e886090cedf30533f562ea4d6e Update flags description in decoder API original-Change-Id: I9a5b4f8da76bb652f5580cbd3ba9760425c43830 Add QMF domain reset function original-Change-Id: I4f89a8a2c0277d18103380134e4ed86996e9d8d6 DRC upgrade v2.1.0 original-Change-Id: I5731c0540139dab220094cd978ef42099fc45b74 Fix integer overflow in sqrtFixp_lookup() original-Change-Id: I429a6f0d19aa2cc957e0f181066f0ca73968c914 Fix integer overflow in invSqrtNorm2() original-Change-Id: I84de5cbf9fb3adeb611db203fe492fabf4eb6155 Fix integer overflow in GenerateRandomVector() original-Change-Id: I3118a641008bd9484d479e5b0b1ee2b5d7d44d74 Fix integer overflow in adjustTimeSlot_EldGrid() original-Change-Id: I29d503c247c5c8282349b79df940416a512fb9d5 Fix integer overflow in FDKsbrEnc_codeEnvelope() original-Change-Id: I6b34b61ebb9d525b0c651ed08de2befc1f801449 Follow-up on: Fix integer overflow in adjustTimeSlot_EldGrid() original-Change-Id: I6f8f578cc7089e5eb7c7b93e580b72ca35ad689a Fix integer overflow in get_pk_v2() original-Change-Id: I63375bed40d45867f6eeaa72b20b1f33e815938c Fix integer overflow in Syn_filt_zero() original-Change-Id: Ie0c02fdfbe03988f9d3b20d10cd9fe4c002d1279 Fix integer overflow in CFac_CalcFacSignal() original-Change-Id: Id2d767c40066c591b51768e978eb8af3b803f0c5 Fix integer overflow in FDKaacEnc_FDKaacEnc_calcPeNoAH() original-Change-Id: Idcbd0f4a51ae2550ed106aa6f3d678d1f9724841 Fix integer overflow in sbrDecoder_calculateGainVec() original-Change-Id: I7081bcbe29c5cede9821b38d93de07c7add2d507 Fix integer overflow in CLpc_SynthesisLattice() original-Change-Id: I4a95ddc18de150102352d4a1845f06094764c881 Fix integer overflow in Pred_Lt4() original-Change-Id: I4dbd012b2de7d07c3e70a47b92e3bfae8dbc750a Fix integer overflow in FDKsbrEnc_InitSbrFastTransientDetector() original-Change-Id: I788cbec1a4a00f44c2f3a72ad7a4afa219807d04 Fix unsigned integer overflow in FDKaacEnc_WriteBitstream() original-Change-Id: I68fc75166e7d2cd5cd45b18dbe3d8c2a92f1822a Fix unsigned integer overflow in FDK_MetadataEnc_Init() original-Change-Id: Ie8d025f9bcdb2442c704bd196e61065c03c10af4 Fix overflow in pseudo random number generators original-Change-Id: I3e2551ee01356297ca14e3788436ede80bd5513c Fix unsigned integer overflow in sbrDecoder_Parse() original-Change-Id: I3f231b2f437e9c37db4d5b964164686710eee971 Fix unsigned integer overflow in longsub() original-Change-Id: I73c2bc50415cac26f1f5a29e125bbe75f9180a6e Fix unsigned integer overflow in CAacDecoder_DecodeFrame() original-Change-Id: Ifce2db4b1454b46fa5f887e9d383f1cc43b291e4 Fix overflow at CLpdChannelStream_Read() original-Change-Id: Idb9d822ce3a4272e4794b643644f5434e2d4bf3f Fix unsigned integer overflow in Hcr_State_BODY_SIGN_ESC__ESC_WORD() original-Change-Id: I1ccf77c0015684b85534c5eb97162740a870b71c Fix unsigned integer overflow in UsacConfig_Parse() original-Change-Id: Ie6d27f84b6ae7eef092ecbff4447941c77864d9f Fix unsigned integer overflow in aacDecoder_drcParse() original-Change-Id: I713f28e883eea3d70b6fa56a7b8f8c22bcf66ca0 Fix unsigned integer overflow in aacDecoder_drcReadCompression() original-Change-Id: Ia34dfeb88c4705c558bce34314f584965cafcf7a Fix unsigned integer overflow in CDataStreamElement_Read() original-Change-Id: Iae896cc1d11f0a893d21be6aa90bd3e60a2c25f0 Fix unsigned integer overflow in transportDec_AdjustEndOfAccessUnit() original-Change-Id: I64cf29a153ee784bb4a16fdc088baabebc0007dc Fix unsigned integer overflow in transportDec_GetAuBitsRemaining() original-Change-Id: I975b3420faa9c16a041874ba0db82e92035962e4 Fix unsigned integer overflow in extractExtendedData() original-Change-Id: I2a59eb09e2053cfb58dfb75fcecfad6b85a80a8f Fix signed integer overflow in CAacDecoder_ExtPayloadParse() original-Change-Id: I4ad5ca4e3b83b5d964f1c2f8c5e7b17c477c7929 Fix unsigned integer overflow in CAacDecoder_DecodeFrame() original-Change-Id: I29a39df77d45c52a0c9c5c83c1ba81f8d0f25090 Follow-up on: Fix integer overflow in CLpc_SynthesisLattice() original-Change-Id: I8fb194ffc073a3432a380845be71036a272d388f Fix signed integer overflow in _interpolateDrcGain() original-Change-Id: I879ec9ab14005069a7c47faf80e8bc6e03d22e60 Fix unsigned integer overflow in FDKreadBits() original-Change-Id: I1f47a6a8037ff70375aa8844947d5681bb4287ad Fix unsigned integer overflow in FDKbyteAlign() original-Change-Id: Id5f3a11a0c9e50fc6f76ed6c572dbd4e9f2af766 Fix unsigned integer overflow in FDK_get32() original-Change-Id: I9d33b8e97e3d38cbb80629cb859266ca0acdce96 Fix unsigned integer overflow in FDK_pushBack() original-Change-Id: Ic87f899bc8c6acf7a377a8ca7f3ba74c3a1e1c19 Fix unsigned integer overflow in FDK_pushForward() original-Change-Id: I3b754382f6776a34be1602e66694ede8e0b8effc Fix unsigned integer overflow in ReadPsData() original-Change-Id: I25361664ba8139e32bbbef2ca8c106a606ce9c37 Fix signed integer overflow in E_UTIL_residu() original-Change-Id: I8c3abd1f437ee869caa8fb5903ce7d3d641b6aad REVERT: Follow-up on: Integer overflow in CLpc_SynthesisLattice(). original-Change-Id: I3d340099acb0414795c8dfbe6362bc0a8f045f9b Follow-up on: Fix integer overflow in CLpc_SynthesisLattice() original-Change-Id: I4aedb8b3a187064e9f4d985175aa55bb99cc7590 Follow-up on: Fix unsigned integer overflow in aacDecoder_drcParse() original-Change-Id: I2aa2e13916213bf52a67e8b0518e7bf7e57fb37d Fix integer overflow in acelp original-Change-Id: Ie6390c136d84055f8b728aefbe4ebef6e029dc77 Fix unsigned integer overflow in aacDecoder_UpdateBitStreamCounters() original-Change-Id: I391ffd97ddb0b2c184cba76139bfb356a3b4d2e2 Adjust concealment default settings original-Change-Id: I6a95db935a327c47df348030bcceafcb29f54b21 Saturate estimatedStartPos original-Change-Id: I27be2085e0ae83ec9501409f65e003f6bcba1ab6 Negative shift exponent in _interpolateDrcGain() original-Change-Id: I18edb26b26d002aafd5e633d4914960f7a359c29 Negative shift exponent in calculateICC() original-Change-Id: I3dcd2ae98d2eb70ee0d59750863cbb2a6f4f8aba Too large shift exponent in FDK_put() original-Change-Id: Ib7d9aaa434d2d8de4a13b720ca0464b31ca9b671 Too large shift exponent in CalcInvLdData() original-Change-Id: I43e6e78d4cd12daeb1dcd5d82d1798bdc2550262 Member access within null pointer of type SBR_CHANNEL original-Change-Id: Idc5e4ea8997810376d2f36bbdf628923b135b097 Member access within null pointer of type CpePersistentData original-Change-Id: Ib6c91cb0d37882768e5baf63324e429589de0d9d Member access within null pointer FDKaacEnc_psyMain() original-Change-Id: I7729b7f4479970531d9dc823abff63ca52e01997 Member access within null pointer FDKaacEnc_GetPnsParam() original-Change-Id: I9aa3b9f3456ae2e0f7483dbd5b3dde95fc62da39 Member access within null pointer FDKsbrEnc_EnvEncodeFrame() original-Change-Id: I67936f90ea714e90b3e81bc0dd1472cc713eb23a Add HCR sanity check original-Change-Id: I6c1d9732ebcf6af12f50b7641400752f74be39f7 Fix memory issue for HBE edge case with 8:3 SBR original-Change-Id: I11ea58a61e69fbe8bf75034b640baee3011e63e9 Additional SBR parametrization sanity check for ELD original-Change-Id: Ie26026fbfe174c2c7b3691f6218b5ce63e322140 Add MPEG-D DRC channel layout check original-Change-Id: Iea70a74f171b227cce636a9eac4ba662777a2f72 Additional out-of-bounds checks in MPEG-D DRC original-Change-Id: Ife4a8c3452c6fde8a0a09e941154a39a769777d4 Change-Id: Ic63cb2f628720f54fe9b572b0cb528e2599c624e
Diffstat (limited to 'libSBRenc/src/sbrenc_freq_sca.cpp')
-rw-r--r--libSBRenc/src/sbrenc_freq_sca.cpp819
1 files changed, 401 insertions, 418 deletions
diff --git a/libSBRenc/src/sbrenc_freq_sca.cpp b/libSBRenc/src/sbrenc_freq_sca.cpp
index 30bc5ca..c86e047 100644
--- a/libSBRenc/src/sbrenc_freq_sca.cpp
+++ b/libSBRenc/src/sbrenc_freq_sca.cpp
@@ -1,74 +1,85 @@
-
-/* -----------------------------------------------------------------------------------------------------------
+/* -----------------------------------------------------------------------------
Software License for The Fraunhofer FDK AAC Codec Library for Android
-© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- All rights reserved.
+© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
+Forschung e.V. All rights reserved.
1. INTRODUCTION
-The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
-the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
-This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
-
-AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
-audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
-independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
-of the MPEG specifications.
-
-Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
-may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
-individually for the purpose of encoding or decoding bit streams in products that are compliant with
-the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
-these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
-software may already be covered under those patent licenses when it is used for those licensed purposes only.
-
-Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
-are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
-applications information and documentation.
+The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
+that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
+scheme for digital audio. This FDK AAC Codec software is intended to be used on
+a wide variety of Android devices.
+
+AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
+general perceptual audio codecs. AAC-ELD is considered the best-performing
+full-bandwidth communications codec by independent studies and is widely
+deployed. AAC has been standardized by ISO and IEC as part of the MPEG
+specifications.
+
+Patent licenses for necessary patent claims for the FDK AAC Codec (including
+those of Fraunhofer) may be obtained through Via Licensing
+(www.vialicensing.com) or through the respective patent owners individually for
+the purpose of encoding or decoding bit streams in products that are compliant
+with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
+Android devices already license these patent claims through Via Licensing or
+directly from the patent owners, and therefore FDK AAC Codec software may
+already be covered under those patent licenses when it is used for those
+licensed purposes only.
+
+Commercially-licensed AAC software libraries, including floating-point versions
+with enhanced sound quality, are also available from Fraunhofer. Users are
+encouraged to check the Fraunhofer website for additional applications
+information and documentation.
2. COPYRIGHT LICENSE
-Redistribution and use in source and binary forms, with or without modification, are permitted without
-payment of copyright license fees provided that you satisfy the following conditions:
+Redistribution and use in source and binary forms, with or without modification,
+are permitted without payment of copyright license fees provided that you
+satisfy the following conditions:
-You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
-your modifications thereto in source code form.
+You must retain the complete text of this software license in redistributions of
+the FDK AAC Codec or your modifications thereto in source code form.
-You must retain the complete text of this software license in the documentation and/or other materials
-provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
-You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
+You must retain the complete text of this software license in the documentation
+and/or other materials provided with redistributions of the FDK AAC Codec or
+your modifications thereto in binary form. You must make available free of
+charge copies of the complete source code of the FDK AAC Codec and your
modifications thereto to recipients of copies in binary form.
-The name of Fraunhofer may not be used to endorse or promote products derived from this library without
-prior written permission.
+The name of Fraunhofer may not be used to endorse or promote products derived
+from this library without prior written permission.
-You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
-software or your modifications thereto.
+You may not charge copyright license fees for anyone to use, copy or distribute
+the FDK AAC Codec software or your modifications thereto.
-Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
-and the date of any change. For modified versions of the FDK AAC Codec, the term
-"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
-"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
+Your modified versions of the FDK AAC Codec must carry prominent notices stating
+that you changed the software and the date of any change. For modified versions
+of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
+must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
+AAC Codec Library for Android."
3. NO PATENT LICENSE
-NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
-ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
-respect to this software.
+NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
+limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
+Fraunhofer provides no warranty of patent non-infringement with respect to this
+software.
-You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
-by appropriate patent licenses.
+You may use this FDK AAC Codec software or modifications thereto only for
+purposes that are authorized by appropriate patent licenses.
4. DISCLAIMER
-This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
-"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
-of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
-CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
-including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
-or business interruption, however caused and on any theory of liability, whether in contract, strict
-liability, or tort (including negligence), arising in any way out of the use of this software, even if
-advised of the possibility of such damage.
+This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
+holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
+including but not limited to the implied warranties of merchantability and
+fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
+or consequential damages, including but not limited to procurement of substitute
+goods or services; loss of use, data, or profits, or business interruption,
+however caused and on any theory of liability, whether in contract, strict
+liability, or tort (including negligence), arising in any way out of the use of
+this software, even if advised of the possibility of such damage.
5. CONTACT INFORMATION
@@ -79,12 +90,19 @@ Am Wolfsmantel 33
www.iis.fraunhofer.de/amm
amm-info@iis.fraunhofer.de
------------------------------------------------------------------------------------------------------------ */
+----------------------------------------------------------------------------- */
+
+/**************************** SBR encoder library ******************************
+
+ Author(s):
+
+ Description:
+
+*******************************************************************************/
/*!
\file
- \brief frequency scale
- \author Tobias Chalupka
+ \brief frequency scale $Revision: 95225 $
*/
#include "sbrenc_freq_sca.h"
@@ -98,12 +116,10 @@ static INT getStartFreq(INT fsCore, const INT start_freq);
/* StopFreq */
static INT getStopFreq(INT fsCore, const INT stop_freq);
-static INT numberOfBands(INT b_p_o, INT start, INT stop, FIXP_DBL warp_factor);
-static void CalcBands(INT * diff, INT start , INT stop , INT num_bands);
-static INT modifyBands(INT max_band, INT * diff, INT length);
-static void cumSum(INT start_value, INT* diff, INT length, UCHAR *start_adress);
-
-
+static INT numberOfBands(INT b_p_o, INT start, INT stop, FIXP_DBL warp_factor);
+static void CalcBands(INT *diff, INT start, INT stop, INT num_bands);
+static INT modifyBands(INT max_band, INT *diff, INT length);
+static void cumSum(INT start_value, INT *diff, INT length, UCHAR *start_adress);
/*******************************************************************************
Functionname: FDKsbrEnc_getSbrStartFreqRAW
@@ -115,24 +131,22 @@ static void cumSum(INT start_value, INT* diff, INT length, UCHAR *start_adress)
Return:
*******************************************************************************/
-INT
-FDKsbrEnc_getSbrStartFreqRAW (INT startFreq, INT fsCore)
-{
+INT FDKsbrEnc_getSbrStartFreqRAW(INT startFreq, INT fsCore) {
INT result;
- if ( startFreq < 0 || startFreq > 15) {
+ if (startFreq < 0 || startFreq > 15) {
return -1;
}
/* Update startFreq struct */
result = getStartFreq(fsCore, startFreq);
- result = (result*(fsCore>>5)+1)>>1; /* (result*fsSBR/QMFbands+1)>>1; */
+ result =
+ (result * (fsCore >> 5) + 1) >> 1; /* (result*fsSBR/QMFbands+1)>>1; */
return (result);
} /* End FDKsbrEnc_getSbrStartFreqRAW */
-
/*******************************************************************************
Functionname: getSbrStopFreq
*******************************************************************************
@@ -142,21 +156,19 @@ FDKsbrEnc_getSbrStartFreqRAW (INT startFreq, INT fsCore)
Return:
*******************************************************************************/
-INT FDKsbrEnc_getSbrStopFreqRAW (INT stopFreq, INT fsCore)
-{
+INT FDKsbrEnc_getSbrStopFreqRAW(INT stopFreq, INT fsCore) {
INT result;
- if ( stopFreq < 0 || stopFreq > 13)
- return -1;
+ if (stopFreq < 0 || stopFreq > 13) return -1;
/* Uppdate stopFreq struct */
result = getStopFreq(fsCore, stopFreq);
- result = (result*(fsCore>>5)+1)>>1; /* (result*fsSBR/QMFbands+1)>>1; */
+ result =
+ (result * (fsCore >> 5) + 1) >> 1; /* (result*fsSBR/QMFbands+1)>>1; */
return (result);
} /* End getSbrStopFreq */
-
/*******************************************************************************
Functionname: getStartFreq
*******************************************************************************
@@ -167,82 +179,80 @@ INT FDKsbrEnc_getSbrStopFreqRAW (INT stopFreq, INT fsCore)
Return:
*******************************************************************************/
-static INT
-getStartFreq(INT fsCore, const INT start_freq)
-{
+static INT getStartFreq(INT fsCore, const INT start_freq) {
INT k0_min;
- switch(fsCore){
- case 8000: k0_min = 24; /* (3000 * nQmfChannels / fsSBR ) + 0.5 */
- break;
- case 11025: k0_min = 17; /* (3000 * nQmfChannels / fsSBR ) + 0.5 */
- break;
- case 12000: k0_min = 16; /* (3000 * nQmfChannels / fsSBR ) + 0.5 */
- break;
- case 16000: k0_min = 16; /* (4000 * nQmfChannels / fsSBR ) + 0.5 */
- break;
- case 22050: k0_min = 12; /* (4000 * nQmfChannels / fsSBR ) + 0.5 */
- break;
- case 24000: k0_min = 11; /* (4000 * nQmfChannels / fsSBR ) + 0.5 */
- break;
- case 32000: k0_min = 10; /* (5000 * nQmfChannels / fsSBR ) + 0.5 */
- break;
- case 44100: k0_min = 7; /* (5000 * nQmfChannels / fsSBR ) + 0.5 */
- break;
- case 48000: k0_min = 7; /* (5000 * nQmfChannels / fsSBR ) + 0.5 */
- break;
- case 96000: k0_min = 3; /* (5000 * nQmfChannels / fsSBR ) + 0.5 */
- break;
- default:
- k0_min=11; /* illegal fs */
+ switch (fsCore) {
+ case 8000:
+ k0_min = 24; /* (3000 * nQmfChannels / fsSBR ) + 0.5 */
+ break;
+ case 11025:
+ k0_min = 17; /* (3000 * nQmfChannels / fsSBR ) + 0.5 */
+ break;
+ case 12000:
+ k0_min = 16; /* (3000 * nQmfChannels / fsSBR ) + 0.5 */
+ break;
+ case 16000:
+ k0_min = 16; /* (4000 * nQmfChannels / fsSBR ) + 0.5 */
+ break;
+ case 22050:
+ k0_min = 12; /* (4000 * nQmfChannels / fsSBR ) + 0.5 */
+ break;
+ case 24000:
+ k0_min = 11; /* (4000 * nQmfChannels / fsSBR ) + 0.5 */
+ break;
+ case 32000:
+ k0_min = 10; /* (5000 * nQmfChannels / fsSBR ) + 0.5 */
+ break;
+ case 44100:
+ k0_min = 7; /* (5000 * nQmfChannels / fsSBR ) + 0.5 */
+ break;
+ case 48000:
+ k0_min = 7; /* (5000 * nQmfChannels / fsSBR ) + 0.5 */
+ break;
+ case 96000:
+ k0_min = 3; /* (5000 * nQmfChannels / fsSBR ) + 0.5 */
+ break;
+ default:
+ k0_min = 11; /* illegal fs */
}
-
switch (fsCore) {
-
- case 8000:
- {
- INT v_offset[]= {-8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7};
+ case 8000: {
+ INT v_offset[] = {-8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7};
return (k0_min + v_offset[start_freq]);
}
- case 11025:
- {
- INT v_offset[]= {-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 9, 11, 13};
+ case 11025: {
+ INT v_offset[] = {-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 9, 11, 13};
return (k0_min + v_offset[start_freq]);
}
- case 12000:
- {
- INT v_offset[]= {-5, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 9, 11, 13, 16};
+ case 12000: {
+ INT v_offset[] = {-5, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 9, 11, 13, 16};
return (k0_min + v_offset[start_freq]);
}
- case 16000:
- {
- INT v_offset[]= {-6, -4, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 9, 11, 13, 16};
+ case 16000: {
+ INT v_offset[] = {-6, -4, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 9, 11, 13, 16};
return (k0_min + v_offset[start_freq]);
}
- case 22050:
- case 24000:
- case 32000:
- {
- INT v_offset[]= {-4, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 9, 11, 13, 16, 20};
+ case 22050:
+ case 24000:
+ case 32000: {
+ INT v_offset[] = {-4, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 9, 11, 13, 16, 20};
return (k0_min + v_offset[start_freq]);
}
- case 44100:
- case 48000:
- case 96000:
- {
- INT v_offset[]= {-2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 9, 11, 13, 16, 20, 24};
+ case 44100:
+ case 48000:
+ case 96000: {
+ INT v_offset[] = {-2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 9, 11, 13, 16, 20, 24};
return (k0_min + v_offset[start_freq]);
}
- default:
- {
- INT v_offset[]= {0, 1, 2, 3, 4, 5, 6, 7, 9, 11, 13, 16, 20, 24, 28, 33};
+ default: {
+ INT v_offset[] = {0, 1, 2, 3, 4, 5, 6, 7, 9, 11, 13, 16, 20, 24, 28, 33};
return (k0_min + v_offset[start_freq]);
}
}
} /* End getStartFreq */
-
/*******************************************************************************
Functionname: getStopFreq
*******************************************************************************
@@ -252,78 +262,93 @@ getStartFreq(INT fsCore, const INT start_freq)
Return:
*******************************************************************************/
- static INT
-getStopFreq(INT fsCore, const INT stop_freq)
-{
- INT result,i;
+static INT getStopFreq(INT fsCore, const INT stop_freq) {
+ INT result, i;
INT k1_min;
INT v_dstop[13];
INT *v_stop_freq = NULL;
- INT v_stop_freq_16[14] = {48,49,50,51,52,54,55,56,57,59,60,61,63,64};
- INT v_stop_freq_22[14] = {35,37,38,40,42,44,46,48,51,53,56,58,61,64};
- INT v_stop_freq_24[14] = {32,34,36,38,40,42,44,46,49,52,55,58,61,64};
- INT v_stop_freq_32[14] = {32,34,36,38,40,42,44,46,49,52,55,58,61,64};
- INT v_stop_freq_44[14] = {23,25,27,29,32,34,37,40,43,47,51,55,59,64};
- INT v_stop_freq_48[14] = {21,23,25,27,30,32,35,38,42,45,49,54,59,64};
- INT v_stop_freq_64[14] = {20,22,24,26,29,31,34,37,41,45,49,54,59,64};
- INT v_stop_freq_88[14] = {15,17,19,21,23,26,29,33,37,41,46,51,57,64};
- INT v_stop_freq_96[14] = {13,15,17,19,21,24,27,31,35,39,44,50,57,64};
- INT v_stop_freq_192[14] = {7, 8,10,12,14,16,19,23,27,32,38,46,54,64};
-
- switch(fsCore){
- case 8000: k1_min = 48;
- v_stop_freq =v_stop_freq_16;
- break;
- case 11025: k1_min = 35;
- v_stop_freq =v_stop_freq_22;
- break;
- case 12000: k1_min = 32;
- v_stop_freq =v_stop_freq_24;
- break;
- case 16000: k1_min = 32;
- v_stop_freq =v_stop_freq_32;
- break;
- case 22050: k1_min = 23;
- v_stop_freq =v_stop_freq_44;
- break;
- case 24000: k1_min = 21;
- v_stop_freq =v_stop_freq_48;
- break;
- case 32000: k1_min = 20;
- v_stop_freq =v_stop_freq_64;
- break;
- case 44100: k1_min = 15;
- v_stop_freq =v_stop_freq_88;
- break;
- case 48000: k1_min = 13;
- v_stop_freq =v_stop_freq_96;
- break;
- case 96000: k1_min = 7;
- v_stop_freq =v_stop_freq_192;
- break;
- default:
- k1_min = 21; /* illegal fs */
+ INT v_stop_freq_16[14] = {48, 49, 50, 51, 52, 54, 55,
+ 56, 57, 59, 60, 61, 63, 64};
+ INT v_stop_freq_22[14] = {35, 37, 38, 40, 42, 44, 46,
+ 48, 51, 53, 56, 58, 61, 64};
+ INT v_stop_freq_24[14] = {32, 34, 36, 38, 40, 42, 44,
+ 46, 49, 52, 55, 58, 61, 64};
+ INT v_stop_freq_32[14] = {32, 34, 36, 38, 40, 42, 44,
+ 46, 49, 52, 55, 58, 61, 64};
+ INT v_stop_freq_44[14] = {23, 25, 27, 29, 32, 34, 37,
+ 40, 43, 47, 51, 55, 59, 64};
+ INT v_stop_freq_48[14] = {21, 23, 25, 27, 30, 32, 35,
+ 38, 42, 45, 49, 54, 59, 64};
+ INT v_stop_freq_64[14] = {20, 22, 24, 26, 29, 31, 34,
+ 37, 41, 45, 49, 54, 59, 64};
+ INT v_stop_freq_88[14] = {15, 17, 19, 21, 23, 26, 29,
+ 33, 37, 41, 46, 51, 57, 64};
+ INT v_stop_freq_96[14] = {13, 15, 17, 19, 21, 24, 27,
+ 31, 35, 39, 44, 50, 57, 64};
+ INT v_stop_freq_192[14] = {7, 8, 10, 12, 14, 16, 19,
+ 23, 27, 32, 38, 46, 54, 64};
+
+ switch (fsCore) {
+ case 8000:
+ k1_min = 48;
+ v_stop_freq = v_stop_freq_16;
+ break;
+ case 11025:
+ k1_min = 35;
+ v_stop_freq = v_stop_freq_22;
+ break;
+ case 12000:
+ k1_min = 32;
+ v_stop_freq = v_stop_freq_24;
+ break;
+ case 16000:
+ k1_min = 32;
+ v_stop_freq = v_stop_freq_32;
+ break;
+ case 22050:
+ k1_min = 23;
+ v_stop_freq = v_stop_freq_44;
+ break;
+ case 24000:
+ k1_min = 21;
+ v_stop_freq = v_stop_freq_48;
+ break;
+ case 32000:
+ k1_min = 20;
+ v_stop_freq = v_stop_freq_64;
+ break;
+ case 44100:
+ k1_min = 15;
+ v_stop_freq = v_stop_freq_88;
+ break;
+ case 48000:
+ k1_min = 13;
+ v_stop_freq = v_stop_freq_96;
+ break;
+ case 96000:
+ k1_min = 7;
+ v_stop_freq = v_stop_freq_192;
+ break;
+ default:
+ k1_min = 21; /* illegal fs */
}
- /* if no valid core samplingrate is used this loop produces
- a segfault, because v_stop_freq is not initialized */
/* Ensure increasing bandwidth */
- for(i = 0; i <= 12; i++) {
- v_dstop[i] = v_stop_freq[i+1] - v_stop_freq[i];
+ for (i = 0; i <= 12; i++) {
+ v_dstop[i] = v_stop_freq[i + 1] - v_stop_freq[i];
}
FDKsbrEnc_Shellsort_int(v_dstop, 13); /* Sort bandwidth changes */
result = k1_min;
- for(i = 0; i < stop_freq; i++) {
+ for (i = 0; i < stop_freq; i++) {
result = result + v_dstop[i];
}
- return(result);
-
-}/* End getStopFreq */
+ return (result);
+} /* End getStopFreq */
/*******************************************************************************
Functionname: FDKsbrEnc_FindStartAndStopBand
@@ -341,31 +366,23 @@ getStopFreq(INT fsCore, const INT stop_freq)
Return: Error code (0 is OK)
*******************************************************************************/
-INT
-FDKsbrEnc_FindStartAndStopBand(
- const INT srSbr,
- const INT srCore,
- const INT noChannels,
- const INT startFreq,
- const INT stopFreq,
- INT *k0,
- INT *k2
- )
-{
-
+INT FDKsbrEnc_FindStartAndStopBand(const INT srSbr, const INT srCore,
+ const INT noChannels, const INT startFreq,
+ const INT stopFreq, INT *k0, INT *k2) {
/* Update startFreq struct */
*k0 = getStartFreq(srCore, startFreq);
/* Test if start freq is outside corecoder range */
- if( srSbr*noChannels < *k0 * srCore ) {
- return (1); /* raise the cross-over frequency and/or lower the number
- of target bands per octave (or lower the sampling frequency) */
+ if (srSbr * noChannels < *k0 * srCore) {
+ return (
+ 1); /* raise the cross-over frequency and/or lower the number
+ of target bands per octave (or lower the sampling frequency) */
}
/*Update stopFreq struct */
- if ( stopFreq < 14 ) {
+ if (stopFreq < 14) {
*k2 = getStopFreq(srCore, stopFreq);
- } else if( stopFreq == 14 ) {
+ } else if (stopFreq == 14) {
*k2 = 2 * *k0;
} else {
*k2 = 3 * *k0;
@@ -376,23 +393,21 @@ FDKsbrEnc_FindStartAndStopBand(
*k2 = noChannels;
}
-
-
/* Test for invalid k0 k2 combinations */
- if ( (srCore == 22050) && ( (*k2 - *k0) > MAX_FREQ_COEFFS_FS44100 ) )
- return (1); /* Number of bands exceeds valid range of MAX_FREQ_COEFFS for fs=44.1kHz */
+ if ((srCore == 22050) && ((*k2 - *k0) > MAX_FREQ_COEFFS_FS44100))
+ return (1); /* Number of bands exceeds valid range of MAX_FREQ_COEFFS for
+ fs=44.1kHz */
- if ( (srCore >= 24000) && ( (*k2 - *k0) > MAX_FREQ_COEFFS_FS48000 ) )
- return (1); /* Number of bands exceeds valid range of MAX_FREQ_COEFFS for fs>=48kHz */
+ if ((srCore >= 24000) && ((*k2 - *k0) > MAX_FREQ_COEFFS_FS48000))
+ return (1); /* Number of bands exceeds valid range of MAX_FREQ_COEFFS for
+ fs>=48kHz */
if ((*k2 - *k0) > MAX_FREQ_COEFFS)
- return (1);/*Number of bands exceeds valid range of MAX_FREQ_COEFFS */
-
- if ((*k2 - *k0) < 0)
- return (1);/* Number of bands is negative */
+ return (1); /*Number of bands exceeds valid range of MAX_FREQ_COEFFS */
+ if ((*k2 - *k0) < 0) return (1); /* Number of bands is negative */
- return(0);
+ return (0);
}
/*******************************************************************************
@@ -404,207 +419,188 @@ FDKsbrEnc_FindStartAndStopBand(
Return:
*******************************************************************************/
-INT
-FDKsbrEnc_UpdateFreqScale(
- UCHAR *v_k_master,
- INT *h_num_bands,
- const INT k0,
- const INT k2,
- const INT freqScale,
- const INT alterScale
- )
+INT FDKsbrEnc_UpdateFreqScale(UCHAR *v_k_master, INT *h_num_bands, const INT k0,
+ const INT k2, const INT freqScale,
+ const INT alterScale)
{
-
- INT b_p_o = 0; /* bands_per_octave */
+ INT b_p_o = 0; /* bands_per_octave */
FIXP_DBL warp = FL2FXCONST_DBL(0.0f);
- INT dk = 0;
+ INT dk = 0;
/* Internal variables */
- INT k1 = 0, i;
- INT num_bands0;
- INT num_bands1;
- INT diff_tot[MAX_OCTAVE + MAX_SECOND_REGION];
- INT *diff0 = diff_tot;
- INT *diff1 = diff_tot+MAX_OCTAVE;
- INT k2_achived;
- INT k2_diff;
- INT incr = 0;
+ INT k1 = 0, i;
+ INT num_bands0;
+ INT num_bands1;
+ INT diff_tot[MAX_OCTAVE + MAX_SECOND_REGION];
+ INT *diff0 = diff_tot;
+ INT *diff1 = diff_tot + MAX_OCTAVE;
+ INT k2_achived;
+ INT k2_diff;
+ INT incr = 0;
/* Init */
- if (freqScale==1) b_p_o = 12;
- if (freqScale==2) b_p_o = 10;
- if (freqScale==3) b_p_o = 8;
-
-
- if(freqScale > 0) /*Bark*/
+ if (freqScale == 1) b_p_o = 12;
+ if (freqScale == 2) b_p_o = 10;
+ if (freqScale == 3) b_p_o = 8;
+
+ if (freqScale > 0) /*Bark*/
+ {
+ if (alterScale == 0)
+ warp = FL2FXCONST_DBL(0.5f); /* 1.0/(1.0*2.0) */
+ else
+ warp = FL2FXCONST_DBL(1.0f / 2.6f); /* 1.0/(1.3*2.0); */
+
+ if (4 * k2 >= 9 * k0) /*two or more regions (how many times the basis band
+ is copied)*/
{
- if(alterScale==0)
- warp = FL2FXCONST_DBL(0.5f); /* 1.0/(1.0*2.0) */
- else
- warp = FL2FXCONST_DBL(1.0f/2.6f); /* 1.0/(1.3*2.0); */
-
-
- if(4*k2 >= 9*k0) /*two or more regions (how many times the basis band is copied)*/
- {
- k1=2*k0;
+ k1 = 2 * k0;
- num_bands0=numberOfBands(b_p_o, k0, k1, FL2FXCONST_DBL(0.5f));
- num_bands1=numberOfBands(b_p_o, k1, k2, warp);
+ num_bands0 = numberOfBands(b_p_o, k0, k1, FL2FXCONST_DBL(0.5f));
+ num_bands1 = numberOfBands(b_p_o, k1, k2, warp);
- CalcBands(diff0, k0, k1, num_bands0);/*CalcBands1 => diff0 */
- FDKsbrEnc_Shellsort_int( diff0, num_bands0);/*SortBands sort diff0 */
+ CalcBands(diff0, k0, k1, num_bands0); /*CalcBands1 => diff0 */
+ FDKsbrEnc_Shellsort_int(diff0, num_bands0); /*SortBands sort diff0 */
- if (diff0[0] == 0) /* too wide FB bands for target tuning */
- {
- return (1);/* raise the cross-over frequency and/or lower the number
- of target bands per octave (or lower the sampling frequency */
- }
-
- cumSum(k0, diff0, num_bands0, v_k_master); /* cumsum */
-
- CalcBands(diff1, k1, k2, num_bands1); /* CalcBands2 => diff1 */
- FDKsbrEnc_Shellsort_int( diff1, num_bands1); /* SortBands sort diff1 */
- if(diff0[num_bands0-1] > diff1[0]) /* max(1) > min(2) */
- {
- if(modifyBands(diff0[num_bands0-1],diff1, num_bands1))
- return(1);
- }
-
- /* Add 2'nd region */
- cumSum(k1, diff1, num_bands1, &v_k_master[num_bands0]);
- *h_num_bands=num_bands0+num_bands1; /* Output nr of bands */
-
- }
- else /* one region */
- {
- k1=k2;
+ if (diff0[0] == 0) /* too wide FB bands for target tuning */
+ {
+ return (1); /* raise the cross-over frequency and/or lower the number
+ of target bands per octave (or lower the sampling
+ frequency */
+ }
- num_bands0=numberOfBands(b_p_o, k0, k1, FL2FXCONST_DBL(0.5f));
- CalcBands(diff0, k0, k1, num_bands0);/* CalcBands1 => diff0 */
- FDKsbrEnc_Shellsort_int( diff0, num_bands0); /* SortBands sort diff0 */
+ cumSum(k0, diff0, num_bands0, v_k_master); /* cumsum */
- if (diff0[0] == 0) /* too wide FB bands for target tuning */
- {
- return (1); /* raise the cross-over frequency and/or lower the number
- of target bands per octave (or lower the sampling frequency */
- }
+ CalcBands(diff1, k1, k2, num_bands1); /* CalcBands2 => diff1 */
+ FDKsbrEnc_Shellsort_int(diff1, num_bands1); /* SortBands sort diff1 */
+ if (diff0[num_bands0 - 1] > diff1[0]) /* max(1) > min(2) */
+ {
+ if (modifyBands(diff0[num_bands0 - 1], diff1, num_bands1)) return (1);
+ }
- cumSum(k0, diff0, num_bands0, v_k_master);/* cumsum */
- *h_num_bands=num_bands0; /* Output nr of bands */
+ /* Add 2'nd region */
+ cumSum(k1, diff1, num_bands1, &v_k_master[num_bands0]);
+ *h_num_bands = num_bands0 + num_bands1; /* Output nr of bands */
- }
- }
- else /* Linear mode */
+ } else /* one region */
{
- if (alterScale==0) {
- dk = 1;
- num_bands0 = 2 * ((k2 - k0)/2); /* FLOOR to get to few number of bands*/
- } else {
- dk = 2;
- num_bands0 = 2 * (((k2 - k0)/dk +1)/2); /* ROUND to get closest fit */
- }
-
- k2_achived = k0 + num_bands0*dk;
- k2_diff = k2 - k2_achived;
+ k1 = k2;
- for(i=0;i<num_bands0;i++)
- diff_tot[i] = dk;
+ num_bands0 = numberOfBands(b_p_o, k0, k1, FL2FXCONST_DBL(0.5f));
+ CalcBands(diff0, k0, k1, num_bands0); /* CalcBands1 => diff0 */
+ FDKsbrEnc_Shellsort_int(diff0, num_bands0); /* SortBands sort diff0 */
- /* If linear scale wasn't achived */
- /* and we got wide SBR are */
- if (k2_diff < 0) {
- incr = 1;
- i = 0;
+ if (diff0[0] == 0) /* too wide FB bands for target tuning */
+ {
+ return (1); /* raise the cross-over frequency and/or lower the number
+ of target bands per octave (or lower the sampling
+ frequency */
}
- /* If linear scale wasn't achived */
- /* and we got small SBR are */
- if (k2_diff > 0) {
- incr = -1;
- i = num_bands0-1;
- }
+ cumSum(k0, diff0, num_bands0, v_k_master); /* cumsum */
+ *h_num_bands = num_bands0; /* Output nr of bands */
+ }
+ } else /* Linear mode */
+ {
+ if (alterScale == 0) {
+ dk = 1;
+ num_bands0 = 2 * ((k2 - k0) / 2); /* FLOOR to get to few number of bands*/
+ } else {
+ dk = 2;
+ num_bands0 =
+ 2 * (((k2 - k0) / dk + 1) / 2); /* ROUND to get closest fit */
+ }
- /* Adjust diff vector to get sepc. SBR range */
- while (k2_diff != 0) {
- diff_tot[i] = diff_tot[i] - incr;
- i = i + incr;
- k2_diff = k2_diff + incr;
- }
+ k2_achived = k0 + num_bands0 * dk;
+ k2_diff = k2 - k2_achived;
- cumSum(k0, diff_tot, num_bands0, v_k_master);/* cumsum */
- *h_num_bands=num_bands0; /* Output nr of bands */
+ for (i = 0; i < num_bands0; i++) diff_tot[i] = dk;
+ /* If linear scale wasn't achived */
+ /* and we got wide SBR are */
+ if (k2_diff < 0) {
+ incr = 1;
+ i = 0;
}
- if (*h_num_bands < 1)
- return(1); /*To small sbr area */
-
- return (0);
-}/* End FDKsbrEnc_UpdateFreqScale */
+ /* If linear scale wasn't achived */
+ /* and we got small SBR are */
+ if (k2_diff > 0) {
+ incr = -1;
+ i = num_bands0 - 1;
+ }
-static INT
-numberOfBands(INT b_p_o, INT start, INT stop, FIXP_DBL warp_factor)
-{
- INT result=0;
- /* result = 2* (INT) ( (double)b_p_o * (double)(FDKlog((double)stop/(double)start)/FDKlog((double)2)) * (double)FX_DBL2FL(warp_factor) + 0.5); */
- result = ( ( b_p_o * fMult( (CalcLdInt(stop) - CalcLdInt(start)), warp_factor) + (FL2FX_DBL(0.5f)>>LD_DATA_SHIFT)
- ) >> ((DFRACT_BITS-1)-LD_DATA_SHIFT) ) << 1; /* do not optimize anymore (rounding!!) */
+ /* Adjust diff vector to get sepc. SBR range */
+ while (k2_diff != 0) {
+ diff_tot[i] = diff_tot[i] - incr;
+ i = i + incr;
+ k2_diff = k2_diff + incr;
+ }
- return(result);
-}
+ cumSum(k0, diff_tot, num_bands0, v_k_master); /* cumsum */
+ *h_num_bands = num_bands0; /* Output nr of bands */
+ }
+ if (*h_num_bands < 1) return (1); /*To small sbr area */
-static void
-CalcBands(INT * diff, INT start , INT stop , INT num_bands)
-{
- INT i, qb, qe, qtmp;
- INT previous;
- INT current;
- FIXP_DBL base, exp, tmp;
+ return (0);
+} /* End FDKsbrEnc_UpdateFreqScale */
+
+static INT numberOfBands(INT b_p_o, INT start, INT stop, FIXP_DBL warp_factor) {
+ INT result = 0;
+ /* result = 2* (INT) ( (double)b_p_o *
+ * (double)(FDKlog((double)stop/(double)start)/FDKlog((double)2)) *
+ * (double)FX_DBL2FL(warp_factor) + 0.5); */
+ result = ((b_p_o * fMult((CalcLdInt(stop) - CalcLdInt(start)), warp_factor) +
+ (FL2FX_DBL(0.5f) >> LD_DATA_SHIFT)) >>
+ ((DFRACT_BITS - 1) - LD_DATA_SHIFT))
+ << 1; /* do not optimize anymore (rounding!!) */
- previous=start;
- for(i=1; i<= num_bands; i++)
- {
- base = fDivNorm((FIXP_DBL)stop, (FIXP_DBL)start, &qb);
- exp = fDivNorm((FIXP_DBL)i, (FIXP_DBL)num_bands, &qe);
- tmp = fPow(base, qb, exp, qe, &qtmp);
- tmp = fMult(tmp, (FIXP_DBL)(start<<24));
- current = (INT)scaleValue(tmp, qtmp-23);
- current = (current+1) >> 1; /* rounding*/
- diff[i-1] = current-previous;
- previous = current;
- }
+ return (result);
+}
-}/* End CalcBands */
+static void CalcBands(INT *diff, INT start, INT stop, INT num_bands) {
+ INT i, qb, qe, qtmp;
+ INT previous;
+ INT current;
+ FIXP_DBL base, exp, tmp;
+
+ previous = start;
+ for (i = 1; i <= num_bands; i++) {
+ base = fDivNorm((FIXP_DBL)stop, (FIXP_DBL)start, &qb);
+ exp = fDivNorm((FIXP_DBL)i, (FIXP_DBL)num_bands, &qe);
+ tmp = fPow(base, qb, exp, qe, &qtmp);
+ tmp = fMult(tmp, (FIXP_DBL)(start << 24));
+ current = (INT)scaleValue(tmp, qtmp - 23);
+ current = (current + 1) >> 1; /* rounding*/
+ diff[i - 1] = current - previous;
+ previous = current;
+ }
+} /* End CalcBands */
-static void
-cumSum(INT start_value, INT* diff, INT length, UCHAR *start_adress)
-{
+static void cumSum(INT start_value, INT *diff, INT length,
+ UCHAR *start_adress) {
INT i;
- start_adress[0]=start_value;
- for(i=1;i<=length;i++)
- start_adress[i]=start_adress[i-1]+diff[i-1];
+ start_adress[0] = start_value;
+ for (i = 1; i <= length; i++)
+ start_adress[i] = start_adress[i - 1] + diff[i - 1];
} /* End cumSum */
+static INT modifyBands(INT max_band_previous, INT *diff, INT length) {
+ INT change = max_band_previous - diff[0];
-static INT
-modifyBands(INT max_band_previous, INT * diff, INT length)
-{
- INT change=max_band_previous-diff[0];
-
- /* Limit the change so that the last band cannot get narrower than the first one */
- if ( change > (diff[length-1] - diff[0]) / 2 )
- change = (diff[length-1] - diff[0]) / 2;
+ /* Limit the change so that the last band cannot get narrower than the first
+ * one */
+ if (change > (diff[length - 1] - diff[0]) / 2)
+ change = (diff[length - 1] - diff[0]) / 2;
diff[0] += change;
- diff[length-1] -= change;
+ diff[length - 1] -= change;
FDKsbrEnc_Shellsort_int(diff, length);
- return(0);
-}/* End modifyBands */
-
+ return (0);
+} /* End modifyBands */
/*******************************************************************************
Functionname: FDKsbrEnc_UpdateHiRes
@@ -616,43 +612,34 @@ modifyBands(INT max_band_previous, INT * diff, INT length)
Return:
*******************************************************************************/
-INT
-FDKsbrEnc_UpdateHiRes(
- UCHAR *h_hires,
- INT *num_hires,
- UCHAR *v_k_master,
- INT num_master,
- INT *xover_band
- )
-{
+INT FDKsbrEnc_UpdateHiRes(UCHAR *h_hires, INT *num_hires, UCHAR *v_k_master,
+ INT num_master, INT *xover_band) {
INT i;
- INT max1,max2;
+ INT max1, max2;
- if( (v_k_master[*xover_band] > 32 ) || /* v_k_master[*xover_band] > noQMFChannels(dualRate)/divider */
- ( *xover_band > num_master ) ) {
- /* xover_band error, too big for this startFreq. Will be clipped */
+ if ((v_k_master[*xover_band] >
+ 32) || /* v_k_master[*xover_band] > noQMFChannels(dualRate)/divider */
+ (*xover_band > num_master)) {
+ /* xover_band error, too big for this startFreq. Will be clipped */
/* Calculate maximum value for xover_band */
- max1=0;
- max2=num_master;
- while( (v_k_master[max1+1] < 32 ) && /* noQMFChannels(dualRate)/divider */
- ( (max1+1) < max2) )
- {
- max1++;
- }
+ max1 = 0;
+ max2 = num_master;
+ while ((v_k_master[max1 + 1] < 32) && /* noQMFChannels(dualRate)/divider */
+ ((max1 + 1) < max2)) {
+ max1++;
+ }
- *xover_band=max1;
+ *xover_band = max1;
}
*num_hires = num_master - *xover_band;
- for(i = *xover_band; i <= num_master; i++)
- {
- h_hires[i - *xover_band] = v_k_master[i];
- }
+ for (i = *xover_band; i <= num_master; i++) {
+ h_hires[i - *xover_band] = v_k_master[i];
+ }
return (0);
-}/* End FDKsbrEnc_UpdateHiRes */
-
+} /* End FDKsbrEnc_UpdateHiRes */
/*******************************************************************************
Functionname: FDKsbrEnc_UpdateLoRes
@@ -663,29 +650,25 @@ FDKsbrEnc_UpdateHiRes(
Return:
*******************************************************************************/
-void
-FDKsbrEnc_UpdateLoRes(UCHAR * h_lores, INT *num_lores, UCHAR * h_hires, INT num_hires)
-{
+void FDKsbrEnc_UpdateLoRes(UCHAR *h_lores, INT *num_lores, UCHAR *h_hires,
+ INT num_hires) {
INT i;
- if(num_hires%2 == 0) /* if even number of hires bands */
- {
- *num_lores=num_hires/2;
- /* Use every second lores=hires[0,2,4...] */
- for(i=0;i<=*num_lores;i++)
- h_lores[i]=h_hires[i*2];
+ if (num_hires % 2 == 0) /* if even number of hires bands */
+ {
+ *num_lores = num_hires / 2;
+ /* Use every second lores=hires[0,2,4...] */
+ for (i = 0; i <= *num_lores; i++) h_lores[i] = h_hires[i * 2];
+ } else /* odd number of hires which means xover is odd */
+ {
+ *num_lores = (num_hires + 1) / 2;
+
+ /* Use lores=hires[0,1,3,5 ...] */
+ h_lores[0] = h_hires[0];
+ for (i = 1; i <= *num_lores; i++) {
+ h_lores[i] = h_hires[i * 2 - 1];
}
- else /* odd number of hires which means xover is odd */
- {
- *num_lores=(num_hires+1)/2;
-
- /* Use lores=hires[0,1,3,5 ...] */
- h_lores[0]=h_hires[0];
- for(i=1;i<=*num_lores;i++)
- {
- h_lores[i]=h_hires[i*2-1];
- }
- }
+ }
-}/* End FDKsbrEnc_UpdateLoRes */
+} /* End FDKsbrEnc_UpdateLoRes */