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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 /libAACenc/src/psy_configuration.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 'libAACenc/src/psy_configuration.cpp')
-rw-r--r--libAACenc/src/psy_configuration.cpp932
1 files changed, 451 insertions, 481 deletions
diff --git a/libAACenc/src/psy_configuration.cpp b/libAACenc/src/psy_configuration.cpp
index 9a72c68..eef90bc 100644
--- a/libAACenc/src/psy_configuration.cpp
+++ b/libAACenc/src/psy_configuration.cpp
@@ -1,74 +1,85 @@
-
-/* -----------------------------------------------------------------------------------------------------------
+/* -----------------------------------------------------------------------------
Software License for The Fraunhofer FDK AAC Codec Library for Android
-© Copyright 1995 - 2015 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
@@ -79,14 +90,15 @@ Am Wolfsmantel 33
www.iis.fraunhofer.de/amm
amm-info@iis.fraunhofer.de
------------------------------------------------------------------------------------------------------------ */
+----------------------------------------------------------------------------- */
+
+/**************************** AAC encoder library ******************************
-/******************************** MPEG Audio Encoder **************************
+ Author(s): M.Werner
- Initial author: M.Werner
- contents/description: Psychoaccoustic configuration
+ Description: Psychoaccoustic configuration
-******************************************************************************/
+*******************************************************************************/
#include "psy_configuration.h"
#include "adj_thr.h"
@@ -96,15 +108,14 @@ amm-info@iis.fraunhofer.de
#include "FDK_trigFcts.h"
-typedef struct{
- LONG sampleRate;
- const SFB_PARAM_LONG *paramLong;
- const SFB_PARAM_SHORT *paramShort;
-}SFB_INFO_TAB;
-
+typedef struct {
+ LONG sampleRate;
+ const SFB_PARAM_LONG *paramLong;
+ const SFB_PARAM_SHORT *paramShort;
+} SFB_INFO_TAB;
static const SFB_INFO_TAB sfbInfoTab[] = {
- {8000, &p_FDKaacEnc_8000_long_1024, &p_FDKaacEnc_8000_short_128},
+ {8000, &p_FDKaacEnc_8000_long_1024, &p_FDKaacEnc_8000_short_128},
{11025, &p_FDKaacEnc_11025_long_1024, &p_FDKaacEnc_11025_short_128},
{12000, &p_FDKaacEnc_12000_long_1024, &p_FDKaacEnc_12000_short_128},
{16000, &p_FDKaacEnc_16000_long_1024, &p_FDKaacEnc_16000_short_128},
@@ -121,108 +132,81 @@ static const SFB_INFO_TAB sfbInfoTab[] = {
/* 22050 and 24000 Hz */
static const SFB_PARAM_LONG p_22050_long_512 = {
- 31,
- { 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
- 4, 8, 8, 8, 12, 12, 12, 16, 20, 24,
- 28, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32}
-};
+ 31, {4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 12, 12,
+ 12, 16, 20, 24, 28, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32}};
/* 32000 Hz */
static const SFB_PARAM_LONG p_32000_long_512 = {
37,
- { 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
- 4, 4, 4, 4, 8, 8, 8, 8, 8, 12,
- 12, 12, 12, 16, 16, 16, 20, 24, 24, 28,
- 32, 32, 32, 32, 32, 32, 32}
-};
+ {4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 8,
+ 12, 12, 12, 12, 16, 16, 16, 20, 24, 24, 28, 32, 32, 32, 32, 32, 32, 32}};
/* 44100 Hz */
static const SFB_PARAM_LONG p_44100_long_512 = {
- 36,
- {4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
- 4, 4, 4, 4, 4, 8, 8, 8, 8, 8,
- 12, 12, 12, 12, 16, 20, 24, 28, 32, 32,
- 32, 32, 32, 32, 32, 52}
-};
+ 36, {4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8,
+ 8, 8, 12, 12, 12, 12, 16, 20, 24, 28, 32, 32, 32, 32, 32, 32, 32, 52}};
static const SFB_INFO_TAB sfbInfoTabLD512[] = {
- { 8000, &p_22050_long_512, NULL},
- {11025, &p_22050_long_512, NULL},
- {12000, &p_22050_long_512, NULL},
- {16000, &p_22050_long_512, NULL},
- {22050, &p_22050_long_512, NULL},
- {24000, &p_22050_long_512, NULL},
- {32000, &p_32000_long_512, NULL},
- {44100, &p_44100_long_512, NULL},
- {48000, &p_44100_long_512, NULL},
- {64000, &p_44100_long_512, NULL},
- {88200, &p_44100_long_512, NULL},
- {96000, &p_44100_long_512, NULL},
-
+ {8000, &p_22050_long_512, NULL}, {11025, &p_22050_long_512, NULL},
+ {12000, &p_22050_long_512, NULL}, {16000, &p_22050_long_512, NULL},
+ {22050, &p_22050_long_512, NULL}, {24000, &p_22050_long_512, NULL},
+ {32000, &p_32000_long_512, NULL}, {44100, &p_44100_long_512, NULL},
+ {48000, &p_44100_long_512, NULL}, {64000, &p_44100_long_512, NULL},
+ {88200, &p_44100_long_512, NULL}, {96000, &p_44100_long_512, NULL},
+ {128000, &p_44100_long_512, NULL}, {176400, &p_44100_long_512, NULL},
+ {192000, &p_44100_long_512, NULL}, {256000, &p_44100_long_512, NULL},
+ {352800, &p_44100_long_512, NULL}, {384000, &p_44100_long_512, NULL},
};
-
/* 22050 and 24000 Hz */
static const SFB_PARAM_LONG p_22050_long_480 = {
- 30,
- { 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
- 4, 8, 8, 8, 12, 12, 12, 16, 20, 24,
- 28, 32, 32, 32, 32, 32, 32, 32, 32, 32}
-};
+ 30, {4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 12,
+ 12, 12, 16, 20, 24, 28, 32, 32, 32, 32, 32, 32, 32, 32, 32}};
/* 32000 Hz */
static const SFB_PARAM_LONG p_32000_long_480 = {
- 37,
- { 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
- 4, 4, 4, 4, 4, 4, 8, 8, 8, 8,
- 8, 8, 12, 12, 12, 16, 16, 20, 24, 32,
- 32, 32, 32, 32, 32, 32, 32}
-};
+ 37, {4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8,
+ 8, 8, 8, 12, 12, 12, 16, 16, 20, 24, 32, 32, 32, 32, 32, 32, 32, 32}};
/* 44100 Hz */
static const SFB_PARAM_LONG p_44100_long_480 = {
- 35,
- { 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
- 4, 4, 4, 4, 8, 8, 8, 8, 8, 12,
- 12, 12, 12, 12, 16, 16, 24, 28, 32, 32,
- 32, 32, 32, 32, 48}
-};
+ 35, {4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 8,
+ 8, 12, 12, 12, 12, 12, 16, 16, 24, 28, 32, 32, 32, 32, 32, 32, 48}};
static const SFB_INFO_TAB sfbInfoTabLD480[] = {
- { 8000, &p_22050_long_480, NULL},
- {11025, &p_22050_long_480, NULL},
- {12000, &p_22050_long_480, NULL},
- {16000, &p_22050_long_480, NULL},
- {22050, &p_22050_long_480, NULL},
- {24000, &p_22050_long_480, NULL},
- {32000, &p_32000_long_480, NULL},
- {44100, &p_44100_long_480, NULL},
- {48000, &p_44100_long_480, NULL},
- {64000, &p_44100_long_480, NULL},
- {88200, &p_44100_long_480, NULL},
- {96000, &p_44100_long_480, NULL},
-
+ {8000, &p_22050_long_480, NULL}, {11025, &p_22050_long_480, NULL},
+ {12000, &p_22050_long_480, NULL}, {16000, &p_22050_long_480, NULL},
+ {22050, &p_22050_long_480, NULL}, {24000, &p_22050_long_480, NULL},
+ {32000, &p_32000_long_480, NULL}, {44100, &p_44100_long_480, NULL},
+ {48000, &p_44100_long_480, NULL}, {64000, &p_44100_long_480, NULL},
+ {88200, &p_44100_long_480, NULL}, {96000, &p_44100_long_480, NULL},
+ {128000, &p_44100_long_480, NULL}, {176400, &p_44100_long_480, NULL},
+ {192000, &p_44100_long_480, NULL}, {256000, &p_44100_long_480, NULL},
+ {352800, &p_44100_long_480, NULL}, {384000, &p_44100_long_480, NULL},
};
/* Fixed point precision definitions */
-#define Q_BARCVAL (25)
-
-static AAC_ENCODER_ERROR FDKaacEnc_initSfbTable(LONG sampleRate, INT blockType, INT granuleLength, INT *sfbOffset, INT *sfbCnt)
-{
- INT i, specStartOffset = 0;
- const UCHAR* sfbWidth = NULL;
+#define Q_BARCVAL (25)
+
+AAC_ENCODER_ERROR FDKaacEnc_initSfbTable(const LONG sampleRate,
+ const INT blockType,
+ const INT granuleLength,
+ INT *const sfbOffset,
+ INT *const sfbCnt) {
+ INT i, specStartOffset = 0;
+ INT granuleLengthWindow = granuleLength;
+ const UCHAR *sfbWidth = NULL;
const SFB_INFO_TAB *sfbInfo = NULL;
int size;
/*
select table
*/
- switch(granuleLength) {
+ switch (granuleLength) {
case 1024:
- case 960:
+ case 960:
sfbInfo = sfbInfoTab;
- size = (INT)(sizeof(sfbInfoTab)/sizeof(SFB_INFO_TAB));
+ size = (INT)(sizeof(sfbInfoTab) / sizeof(SFB_INFO_TAB));
break;
case 512:
sfbInfo = sfbInfoTabLD512;
@@ -236,20 +220,20 @@ static AAC_ENCODER_ERROR FDKaacEnc_initSfbTable(LONG sampleRate, INT blockType,
return AAC_ENC_INVALID_FRAME_LENGTH;
}
- for(i = 0; i < size; i++){
- if(sfbInfo[i].sampleRate == sampleRate){
- switch(blockType){
- case LONG_WINDOW:
- case START_WINDOW:
- case STOP_WINDOW:
- sfbWidth = sfbInfo[i].paramLong->sfbWidth;
- *sfbCnt = sfbInfo[i].paramLong->sfbCnt;
- break;
- case SHORT_WINDOW:
- sfbWidth = sfbInfo[i].paramShort->sfbWidth;
- *sfbCnt = sfbInfo[i].paramShort->sfbCnt;
- granuleLength /= TRANS_FAC;
- break;
+ for (i = 0; i < size; i++) {
+ if (sfbInfo[i].sampleRate == sampleRate) {
+ switch (blockType) {
+ case LONG_WINDOW:
+ case START_WINDOW:
+ case STOP_WINDOW:
+ sfbWidth = sfbInfo[i].paramLong->sfbWidth;
+ *sfbCnt = sfbInfo[i].paramLong->sfbCnt;
+ break;
+ case SHORT_WINDOW:
+ sfbWidth = sfbInfo[i].paramShort->sfbWidth;
+ *sfbCnt = sfbInfo[i].paramShort->sfbCnt;
+ granuleLengthWindow /= TRANS_FAC;
+ break;
}
break;
}
@@ -261,21 +245,19 @@ static AAC_ENCODER_ERROR FDKaacEnc_initSfbTable(LONG sampleRate, INT blockType,
/*
calc sfb offsets
*/
- for(i = 0; i < *sfbCnt; i++){
- sfbOffset[i] = specStartOffset;
- specStartOffset += sfbWidth[i];
- if (specStartOffset >= granuleLength) {
- i++;
- break;
- }
+ for (i = 0; i < *sfbCnt; i++) {
+ sfbOffset[i] = specStartOffset;
+ specStartOffset += sfbWidth[i];
+ if (specStartOffset >= granuleLengthWindow) {
+ i++;
+ break;
+ }
}
- *sfbCnt = fixMin(i,*sfbCnt);
- sfbOffset[*sfbCnt] = fixMin(specStartOffset,granuleLength);
-
+ *sfbCnt = fixMin(i, *sfbCnt);
+ sfbOffset[*sfbCnt] = fixMin(specStartOffset, granuleLengthWindow);
return AAC_ENC_OK;
}
-
/*****************************************************************************
functionname: FDKaacEnc_BarcLineValue
@@ -285,51 +267,53 @@ static AAC_ENCODER_ERROR FDKaacEnc_initSfbTable(LONG sampleRate, INT blockType,
output:
*****************************************************************************/
-static FIXP_DBL FDKaacEnc_BarcLineValue(INT noOfLines, INT fftLine, LONG samplingFreq)
-{
-
- FIXP_DBL FOURBY3EM4 = (FIXP_DBL)0x45e7b273; /* 4.0/3 * 0.0001 in q43 */
- FIXP_DBL PZZZ76 = (FIXP_DBL)0x639d5e4a; /* 0.00076 in q41 */
- FIXP_DBL ONE3P3 = (FIXP_DBL)0x35333333; /* 13.3 in q26 */
- FIXP_DBL THREEP5 = (FIXP_DBL)0x1c000000; /* 3.5 in q27 */
- FIXP_DBL INV480 = (FIXP_DBL)0x44444444; // 1/480 in q39
-
- FIXP_DBL center_freq, x1, x2;
- FIXP_DBL bvalFFTLine, atan1, atan2;
-
- /* Theoritical maximum of center_freq (samp_freq*0.5) is 96khz * 0.5 = 48000 */
- /* Theoritical maximum of x1 is 1.3333333e-4f * center_freq = 6.4, can keep in q28 */
- /* Theoritical maximum of x2 is 0.00076f * center_freq = 36.48, can keep in q25 */
-
- center_freq = fftLine * samplingFreq; /* q11 or q8 */
-
- switch (noOfLines) {
- case 1024:
- center_freq = center_freq << 2; /* q13 */
- break;
- case 128:
- center_freq = center_freq << 5; /* q13 */
- break;
- case 512:
- center_freq = (fftLine * samplingFreq) << 3; // q13
- break;
- case 480:
- center_freq = fMult(center_freq, INV480) << 4; // q13
- break;
- default:
- center_freq = (FIXP_DBL)0;
- }
-
- x1 = fMult(center_freq, FOURBY3EM4); /* q13 * q43 - (DFRACT_BITS-1) = q25 */
- x2 = fMult(center_freq, PZZZ76) << 2; /* q13 * q41 - (DFRACT_BITS-1) + 2 = q25 */
+static FIXP_DBL FDKaacEnc_BarcLineValue(INT noOfLines, INT fftLine,
+ LONG samplingFreq) {
+ FIXP_DBL FOURBY3EM4 = (FIXP_DBL)0x45e7b273; /* 4.0/3 * 0.0001 in q43 */
+ FIXP_DBL PZZZ76 = (FIXP_DBL)0x639d5e4a; /* 0.00076 in q41 */
+ FIXP_DBL ONE3P3 = (FIXP_DBL)0x35333333; /* 13.3 in q26 */
+ FIXP_DBL THREEP5 = (FIXP_DBL)0x1c000000; /* 3.5 in q27 */
+ FIXP_DBL INV480 = (FIXP_DBL)0x44444444; // 1/480 in q39
+
+ FIXP_DBL center_freq, x1, x2;
+ FIXP_DBL bvalFFTLine, atan1, atan2;
+
+ /* Theoritical maximum of center_freq (samp_freq*0.5) is 96khz * 0.5 = 48000
+ */
+ /* Theoritical maximum of x1 is 1.3333333e-4f * center_freq = 6.4, can keep in
+ * q28 */
+ /* Theoritical maximum of x2 is 0.00076f * center_freq = 36.48, can keep in
+ * q25 */
+
+ center_freq = fftLine * samplingFreq; /* q11 or q8 */
+
+ switch (noOfLines) {
+ case 1024:
+ center_freq = center_freq << 2; /* q13 */
+ break;
+ case 128:
+ center_freq = center_freq << 5; /* q13 */
+ break;
+ case 512:
+ center_freq = (fftLine * samplingFreq) << 3; // q13
+ break;
+ case 480:
+ center_freq = fMult(center_freq, INV480) << 4; // q13
+ break;
+ default:
+ center_freq = (FIXP_DBL)0;
+ }
- atan1 = fixp_atan(x1);
- atan2 = fixp_atan(x2);
+ x1 = fMult(center_freq, FOURBY3EM4); /* q13 * q43 - (DFRACT_BITS-1) = q25 */
+ x2 = fMult(center_freq, PZZZ76)
+ << 2; /* q13 * q41 - (DFRACT_BITS-1) + 2 = q25 */
- /* q25 (q26 * q30 - (DFRACT_BITS-1)) + q25 (q27 * q30 * q30) */
- bvalFFTLine = fMult(ONE3P3, atan2) + fMult(THREEP5, fMult(atan1, atan1));
- return(bvalFFTLine);
+ atan1 = fixp_atan(x1);
+ atan2 = fixp_atan(x2);
+ /* q25 (q26 * q30 - (DFRACT_BITS-1)) + q25 (q27 * q30 * q30) */
+ bvalFFTLine = fMult(ONE3P3, atan2) + fMult(THREEP5, fMult(atan1, atan1));
+ return (bvalFFTLine);
}
/*
@@ -338,320 +322,306 @@ static FIXP_DBL FDKaacEnc_BarcLineValue(INT noOfLines, INT fftLine, LONG samplin
might need to be configurable to e.g. 24 bit PCM Input or a lower
resolution for low bit rates
*/
-static void FDKaacEnc_InitMinPCMResolution(int numPb,
- int *pbOffset,
- FIXP_DBL *sfbPCMquantThreshold)
-{
- /* PCM_QUANT_NOISE = FDKpow(10.0f, - 20.f / 10.0f) * ABS_LOW * NORM_PCM_ENERGY * FDKpow(2,PCM_QUANT_THR_SCALE) */
- #define PCM_QUANT_NOISE ((FIXP_DBL)0x00547062)
-
- for( int i = 0; i < numPb; i++ ) {
- sfbPCMquantThreshold[i] = (pbOffset[i+1] - pbOffset[i]) * PCM_QUANT_NOISE;
+static void FDKaacEnc_InitMinPCMResolution(int numPb, int *pbOffset,
+ FIXP_DBL *sfbPCMquantThreshold) {
+/* PCM_QUANT_NOISE = FDKpow(10.0f, - 20.f / 10.0f) * ABS_LOW * NORM_PCM_ENERGY *
+ * FDKpow(2,PCM_QUANT_THR_SCALE) */
+#define PCM_QUANT_NOISE ((FIXP_DBL)0x00547062)
+
+ for (int i = 0; i < numPb; i++) {
+ sfbPCMquantThreshold[i] = (pbOffset[i + 1] - pbOffset[i]) * PCM_QUANT_NOISE;
}
}
-static FIXP_DBL getMaskFactor(
- const FIXP_DBL dbVal_fix,
- const INT dbVal_e,
- const FIXP_DBL ten_fix,
- const INT ten_e
- )
-{
- INT q_msk;
- FIXP_DBL mask_factor;
+static FIXP_DBL getMaskFactor(const FIXP_DBL dbVal_fix, const INT dbVal_e,
+ const FIXP_DBL ten_fix, const INT ten_e) {
+ INT q_msk;
+ FIXP_DBL mask_factor;
- mask_factor = fPow(ten_fix, DFRACT_BITS-1-ten_e, -dbVal_fix, DFRACT_BITS-1-dbVal_e, &q_msk);
- q_msk = fixMin(DFRACT_BITS-1,fixMax(-(DFRACT_BITS-1),q_msk));
+ mask_factor = fPow(ten_fix, DFRACT_BITS - 1 - ten_e, -dbVal_fix,
+ DFRACT_BITS - 1 - dbVal_e, &q_msk);
+ q_msk = fixMin(DFRACT_BITS - 1, fixMax(-(DFRACT_BITS - 1), q_msk));
- if ( (q_msk>0) && (mask_factor>(FIXP_DBL)MAXVAL_DBL>>q_msk) ) {
- mask_factor = (FIXP_DBL)MAXVAL_DBL;
- }
- else {
- mask_factor = scaleValue(mask_factor, q_msk);
- }
+ if ((q_msk > 0) && (mask_factor > (FIXP_DBL)MAXVAL_DBL >> q_msk)) {
+ mask_factor = (FIXP_DBL)MAXVAL_DBL;
+ } else {
+ mask_factor = scaleValue(mask_factor, q_msk);
+ }
- return (mask_factor);
+ return (mask_factor);
}
-static void FDKaacEnc_initSpreading(INT numPb,
- FIXP_DBL *pbBarcValue,
- FIXP_DBL *pbMaskLoFactor,
- FIXP_DBL *pbMaskHiFactor,
- FIXP_DBL *pbMaskLoFactorSprEn,
- FIXP_DBL *pbMaskHiFactorSprEn,
- const LONG bitrate,
- const INT blockType)
+static void FDKaacEnc_initSpreading(INT numPb, FIXP_DBL *pbBarcValue,
+ FIXP_DBL *pbMaskLoFactor,
+ FIXP_DBL *pbMaskHiFactor,
+ FIXP_DBL *pbMaskLoFactorSprEn,
+ FIXP_DBL *pbMaskHiFactorSprEn,
+ const LONG bitrate, const INT blockType)
{
- INT i;
- FIXP_DBL MASKLOWSPREN, MASKHIGHSPREN;
-
- FIXP_DBL MASKHIGH = (FIXP_DBL)0x30000000; /* 1.5 in q29 */
- FIXP_DBL MASKLOW = (FIXP_DBL)0x60000000; /* 3.0 in q29 */
- FIXP_DBL MASKLOWSPRENLONG = (FIXP_DBL)0x60000000; /* 3.0 in q29 */
- FIXP_DBL MASKHIGHSPRENLONG = (FIXP_DBL)0x40000000; /* 2.0 in q29 */
- FIXP_DBL MASKHIGHSPRENLONGLOWBR = (FIXP_DBL)0x30000000; /* 1.5 in q29 */
- FIXP_DBL MASKLOWSPRENSHORT = (FIXP_DBL)0x40000000; /* 2.0 in q29 */
- FIXP_DBL MASKHIGHSPRENSHORT = (FIXP_DBL)0x30000000; /* 1.5 in q29 */
- FIXP_DBL TEN = (FIXP_DBL)0x50000000; /* 10.0 in q27 */
-
- if (blockType != SHORT_WINDOW)
- {
- MASKLOWSPREN = MASKLOWSPRENLONG;
- MASKHIGHSPREN = (bitrate>20000)?MASKHIGHSPRENLONG:MASKHIGHSPRENLONGLOWBR;
- }
- else
- {
- MASKLOWSPREN = MASKLOWSPRENSHORT;
- MASKHIGHSPREN = MASKHIGHSPRENSHORT;
- }
+ INT i;
+ FIXP_DBL MASKLOWSPREN, MASKHIGHSPREN;
+
+ FIXP_DBL MASKHIGH = (FIXP_DBL)0x30000000; /* 1.5 in q29 */
+ FIXP_DBL MASKLOW = (FIXP_DBL)0x60000000; /* 3.0 in q29 */
+ FIXP_DBL MASKLOWSPRENLONG = (FIXP_DBL)0x60000000; /* 3.0 in q29 */
+ FIXP_DBL MASKHIGHSPRENLONG = (FIXP_DBL)0x40000000; /* 2.0 in q29 */
+ FIXP_DBL MASKHIGHSPRENLONGLOWBR = (FIXP_DBL)0x30000000; /* 1.5 in q29 */
+ FIXP_DBL MASKLOWSPRENSHORT = (FIXP_DBL)0x40000000; /* 2.0 in q29 */
+ FIXP_DBL MASKHIGHSPRENSHORT = (FIXP_DBL)0x30000000; /* 1.5 in q29 */
+ FIXP_DBL TEN = (FIXP_DBL)0x50000000; /* 10.0 in q27 */
+
+ if (blockType != SHORT_WINDOW) {
+ MASKLOWSPREN = MASKLOWSPRENLONG;
+ MASKHIGHSPREN =
+ (bitrate > 20000) ? MASKHIGHSPRENLONG : MASKHIGHSPRENLONGLOWBR;
+ } else {
+ MASKLOWSPREN = MASKLOWSPRENSHORT;
+ MASKHIGHSPREN = MASKHIGHSPRENSHORT;
+ }
- for(i=0; i<numPb; i++)
- {
- if (i > 0)
- {
- pbMaskHiFactor[i] = getMaskFactor(
- fMult(MASKHIGH, (pbBarcValue[i] - pbBarcValue[i-1])), 23,
- TEN, 27);
-
- pbMaskLoFactor[i-1] = getMaskFactor(
- fMult(MASKLOW, (pbBarcValue[i] - pbBarcValue[i-1])), 23,
- TEN, 27);
-
- pbMaskHiFactorSprEn[i] = getMaskFactor(
- fMult(MASKHIGHSPREN, (pbBarcValue[i] - pbBarcValue[i-1])), 23,
- TEN, 27);
-
- pbMaskLoFactorSprEn[i-1] = getMaskFactor(
- fMult(MASKLOWSPREN, (pbBarcValue[i] - pbBarcValue[i-1])), 23,
- TEN, 27);
- }
- else
- {
- pbMaskHiFactor[i] = (FIXP_DBL)0;
- pbMaskLoFactor[numPb-1] = (FIXP_DBL)0;
- pbMaskHiFactorSprEn[i] = (FIXP_DBL)0;
- pbMaskLoFactorSprEn[numPb-1] = (FIXP_DBL)0;
- }
+ for (i = 0; i < numPb; i++) {
+ if (i > 0) {
+ pbMaskHiFactor[i] = getMaskFactor(
+ fMult(MASKHIGH, (pbBarcValue[i] - pbBarcValue[i - 1])), 23, TEN, 27);
+
+ pbMaskLoFactor[i - 1] = getMaskFactor(
+ fMult(MASKLOW, (pbBarcValue[i] - pbBarcValue[i - 1])), 23, TEN, 27);
+
+ pbMaskHiFactorSprEn[i] = getMaskFactor(
+ fMult(MASKHIGHSPREN, (pbBarcValue[i] - pbBarcValue[i - 1])), 23, TEN,
+ 27);
+
+ pbMaskLoFactorSprEn[i - 1] = getMaskFactor(
+ fMult(MASKLOWSPREN, (pbBarcValue[i] - pbBarcValue[i - 1])), 23, TEN,
+ 27);
+ } else {
+ pbMaskHiFactor[i] = (FIXP_DBL)0;
+ pbMaskLoFactor[numPb - 1] = (FIXP_DBL)0;
+ pbMaskHiFactorSprEn[i] = (FIXP_DBL)0;
+ pbMaskLoFactorSprEn[numPb - 1] = (FIXP_DBL)0;
}
+ }
}
-static void FDKaacEnc_initBarcValues(INT numPb,
- INT *pbOffset,
- INT numLines,
- INT samplingFrequency,
- FIXP_DBL *pbBval)
-{
- INT i;
- FIXP_DBL MAX_BARC = (FIXP_DBL)0x30000000; /* 24.0 in q25 */
-
- for(i=0; i<numPb; i++)
- {
- FIXP_DBL v1, v2, cur_bark;
- v1 = FDKaacEnc_BarcLineValue(numLines, pbOffset[i], samplingFrequency);
- v2 = FDKaacEnc_BarcLineValue(numLines, pbOffset[i+1], samplingFrequency);
- cur_bark = (v1 >> 1) + (v2 >> 1);
- pbBval[i] = fixMin(cur_bark, MAX_BARC);
- }
+static void FDKaacEnc_initBarcValues(INT numPb, INT *pbOffset, INT numLines,
+ INT samplingFrequency, FIXP_DBL *pbBval) {
+ INT i;
+ FIXP_DBL MAX_BARC = (FIXP_DBL)0x30000000; /* 24.0 in q25 */
+
+ for (i = 0; i < numPb; i++) {
+ FIXP_DBL v1, v2, cur_bark;
+ v1 = FDKaacEnc_BarcLineValue(numLines, pbOffset[i], samplingFrequency);
+ v2 = FDKaacEnc_BarcLineValue(numLines, pbOffset[i + 1], samplingFrequency);
+ cur_bark = (v1 >> 1) + (v2 >> 1);
+ pbBval[i] = fixMin(cur_bark, MAX_BARC);
+ }
}
-static void FDKaacEnc_initMinSnr(const LONG bitrate,
- const LONG samplerate,
- const INT numLines,
- const INT *sfbOffset,
- const INT sfbActive,
- const INT blockType,
- FIXP_DBL *sfbMinSnrLdData)
-{
- INT sfb;
-
- /* Fix conversion variables */
- INT qbfac, qperwin, qdiv, qpeprt_const, qpeprt;
- INT qtmp, qsnr, sfbWidth;
-
- FIXP_DBL MAX_BARC = (FIXP_DBL)0x30000000; /* 24.0 in q25 */
- FIXP_DBL MAX_BARCP1 = (FIXP_DBL)0x32000000; /* 25.0 in q25 */
- FIXP_DBL BITS2PEFAC = (FIXP_DBL)0x4b851eb8; /* 1.18 in q30 */
- FIXP_DBL PERS2P4 = (FIXP_DBL)0x624dd2f2; /* 0.024 in q36 */
- FIXP_DBL ONEP5 = (FIXP_DBL)0x60000000; /* 1.5 in q30 */
- FIXP_DBL MAX_SNR = (FIXP_DBL)0x33333333; /* 0.8 in q30 */
- FIXP_DBL MIN_SNR = (FIXP_DBL)0x003126e9; /* 0.003 in q30 */
-
- FIXP_DBL barcFactor, pePerWindow, pePart, barcWidth;
- FIXP_DBL pePart_const, tmp, snr, one_qsnr, one_point5;
-
- /* relative number of active barks */
- barcFactor = fDivNorm(fixMin(FDKaacEnc_BarcLineValue(numLines, sfbOffset[sfbActive], samplerate), MAX_BARC),
- MAX_BARCP1, &qbfac);
-
- qbfac = DFRACT_BITS-1-qbfac;
-
- pePerWindow = fDivNorm(bitrate, samplerate, &qperwin);
- qperwin = DFRACT_BITS-1-qperwin;
- pePerWindow = fMult(pePerWindow, BITS2PEFAC); qperwin = qperwin + 30 - (DFRACT_BITS-1);
- pePerWindow = fMult(pePerWindow, PERS2P4); qperwin = qperwin + 36 - (DFRACT_BITS-1);
-
- switch (numLines) {
- case 1024:
- qperwin = qperwin - 10;
- break;
- case 128:
- qperwin = qperwin - 7;
- break;
- case 512:
- qperwin = qperwin - 9;
- break;
- case 480:
- qperwin = qperwin - 9;
- pePerWindow = fMult(pePerWindow, FL2FXCONST_DBL(480.f/512.f));
- break;
- }
+static void FDKaacEnc_initMinSnr(const LONG bitrate, const LONG samplerate,
+ const INT numLines, const INT *sfbOffset,
+ const INT sfbActive, const INT blockType,
+ FIXP_DBL *sfbMinSnrLdData) {
+ INT sfb;
+
+ /* Fix conversion variables */
+ INT qbfac, qperwin, qdiv, qpeprt_const, qpeprt;
+ INT qtmp, qsnr, sfbWidth;
+
+ FIXP_DBL MAX_BARC = (FIXP_DBL)0x30000000; /* 24.0 in q25 */
+ FIXP_DBL MAX_BARCP1 = (FIXP_DBL)0x32000000; /* 25.0 in q25 */
+ FIXP_DBL BITS2PEFAC = (FIXP_DBL)0x4b851eb8; /* 1.18 in q30 */
+ FIXP_DBL PERS2P4 = (FIXP_DBL)0x624dd2f2; /* 0.024 in q36 */
+ FIXP_DBL ONEP5 = (FIXP_DBL)0x60000000; /* 1.5 in q30 */
+ FIXP_DBL MAX_SNR = (FIXP_DBL)0x33333333; /* 0.8 in q30 */
+ FIXP_DBL MIN_SNR = (FIXP_DBL)0x003126e9; /* 0.003 in q30 */
+
+ FIXP_DBL barcFactor, pePerWindow, pePart, barcWidth;
+ FIXP_DBL pePart_const, tmp, snr, one_qsnr, one_point5;
+
+ /* relative number of active barks */
+ barcFactor = fDivNorm(fixMin(FDKaacEnc_BarcLineValue(
+ numLines, sfbOffset[sfbActive], samplerate),
+ MAX_BARC),
+ MAX_BARCP1, &qbfac);
+
+ qbfac = DFRACT_BITS - 1 - qbfac;
+
+ pePerWindow = fDivNorm(bitrate, samplerate, &qperwin);
+ qperwin = DFRACT_BITS - 1 - qperwin;
+ pePerWindow = fMult(pePerWindow, BITS2PEFAC);
+ qperwin = qperwin + 30 - (DFRACT_BITS - 1);
+ pePerWindow = fMult(pePerWindow, PERS2P4);
+ qperwin = qperwin + 36 - (DFRACT_BITS - 1);
+
+ switch (numLines) {
+ case 1024:
+ qperwin = qperwin - 10;
+ break;
+ case 128:
+ qperwin = qperwin - 7;
+ break;
+ case 512:
+ qperwin = qperwin - 9;
+ break;
+ case 480:
+ qperwin = qperwin - 9;
+ pePerWindow = fMult(pePerWindow, FL2FXCONST_DBL(480.f / 512.f));
+ break;
+ }
- /* for short blocks it is assumed that more bits are available */
- if (blockType == SHORT_WINDOW)
- {
- pePerWindow = fMult(pePerWindow, ONEP5);
- qperwin = qperwin + 30 - (DFRACT_BITS-1);
- }
- pePart_const = fDivNorm(pePerWindow, barcFactor, &qdiv); qpeprt_const = qperwin - qbfac + DFRACT_BITS-1-qdiv;
+ /* for short blocks it is assumed that more bits are available */
+ if (blockType == SHORT_WINDOW) {
+ pePerWindow = fMult(pePerWindow, ONEP5);
+ qperwin = qperwin + 30 - (DFRACT_BITS - 1);
+ }
+ pePart_const = fDivNorm(pePerWindow, barcFactor, &qdiv);
+ qpeprt_const = qperwin - qbfac + DFRACT_BITS - 1 - qdiv;
- for (sfb = 0; sfb < sfbActive; sfb++)
- {
- barcWidth = FDKaacEnc_BarcLineValue(numLines, sfbOffset[sfb+1], samplerate) -
- FDKaacEnc_BarcLineValue(numLines, sfbOffset[sfb], samplerate);
+ for (sfb = 0; sfb < sfbActive; sfb++) {
+ barcWidth =
+ FDKaacEnc_BarcLineValue(numLines, sfbOffset[sfb + 1], samplerate) -
+ FDKaacEnc_BarcLineValue(numLines, sfbOffset[sfb], samplerate);
- /* adapt to sfb bands */
- pePart = fMult(pePart_const, barcWidth); qpeprt = qpeprt_const + 25 - (DFRACT_BITS-1);
+ /* adapt to sfb bands */
+ pePart = fMult(pePart_const, barcWidth);
+ qpeprt = qpeprt_const + 25 - (DFRACT_BITS - 1);
- /* pe -> snr calculation */
- sfbWidth = (sfbOffset[sfb+1] - sfbOffset[sfb]);
- pePart = fDivNorm(pePart, sfbWidth, &qdiv); qpeprt += DFRACT_BITS-1-qdiv;
+ /* pe -> snr calculation */
+ sfbWidth = (sfbOffset[sfb + 1] - sfbOffset[sfb]);
+ pePart = fDivNorm(pePart, sfbWidth, &qdiv);
+ qpeprt += DFRACT_BITS - 1 - qdiv;
- tmp = f2Pow(pePart, DFRACT_BITS-1-qpeprt, &qtmp);
- qtmp = DFRACT_BITS-1-qtmp;
+ tmp = f2Pow(pePart, DFRACT_BITS - 1 - qpeprt, &qtmp);
+ qtmp = DFRACT_BITS - 1 - qtmp;
- /* Subtract 1.5 */
- qsnr = fixMin(qtmp, 30);
- tmp = tmp >> (qtmp - qsnr);
+ /* Subtract 1.5 */
+ qsnr = fixMin(qtmp, 30);
+ tmp = tmp >> (qtmp - qsnr);
- if((30+1-qsnr) > (DFRACT_BITS-1))
- one_point5 = (FIXP_DBL)0;
- else
- one_point5 = (FIXP_DBL)(ONEP5 >> (30+1-qsnr));
+ if ((30 + 1 - qsnr) > (DFRACT_BITS - 1))
+ one_point5 = (FIXP_DBL)0;
+ else
+ one_point5 = (FIXP_DBL)(ONEP5 >> (30 + 1 - qsnr));
- snr = (tmp>>1) - (one_point5); qsnr -= 1;
+ snr = (tmp >> 1) - (one_point5);
+ qsnr -= 1;
- /* max(snr, 1.0) */
- if(qsnr > 0)
- one_qsnr = (FIXP_DBL)(1 << qsnr);
- else
- one_qsnr = (FIXP_DBL)0;
+ /* max(snr, 1.0) */
+ if (qsnr > 0)
+ one_qsnr = (FIXP_DBL)(1 << qsnr);
+ else
+ one_qsnr = (FIXP_DBL)0;
- snr = fixMax(one_qsnr, snr);
+ snr = fixMax(one_qsnr, snr);
- /* 1/snr */
- snr = fDivNorm(one_qsnr, snr, &qsnr);
- qsnr = DFRACT_BITS-1-qsnr;
- snr = (qsnr > 30)? (snr>>(qsnr-30)):snr;
+ /* 1/snr */
+ snr = fDivNorm(one_qsnr, snr, &qsnr);
+ qsnr = DFRACT_BITS - 1 - qsnr;
+ snr = (qsnr > 30) ? (snr >> (qsnr - 30)) : snr;
- /* upper limit is -1 dB */
- snr = (snr > MAX_SNR) ? MAX_SNR : snr;
+ /* upper limit is -1 dB */
+ snr = (snr > MAX_SNR) ? MAX_SNR : snr;
- /* lower limit is -25 dB */
- snr = (snr < MIN_SNR) ? MIN_SNR : snr;
- snr = snr << 1;
+ /* lower limit is -25 dB */
+ snr = (snr < MIN_SNR) ? MIN_SNR : snr;
+ snr = snr << 1;
- sfbMinSnrLdData[sfb] = CalcLdData(snr);
- }
+ sfbMinSnrLdData[sfb] = CalcLdData(snr);
+ }
}
-AAC_ENCODER_ERROR FDKaacEnc_InitPsyConfiguration(INT bitrate,
- INT samplerate,
- INT bandwidth,
- INT blocktype,
- INT granuleLength,
- INT useIS,
+AAC_ENCODER_ERROR FDKaacEnc_InitPsyConfiguration(INT bitrate, INT samplerate,
+ INT bandwidth, INT blocktype,
+ INT granuleLength, INT useIS,
+ INT useMS,
PSY_CONFIGURATION *psyConf,
- FB_TYPE filterbank)
-{
- AAC_ENCODER_ERROR ErrorStatus;
- INT sfb;
- FIXP_DBL sfbBarcVal[MAX_SFB];
- const INT frameLengthLong = granuleLength;
- const INT frameLengthShort = granuleLength/TRANS_FAC;
-
- FDKmemclear(psyConf, sizeof(PSY_CONFIGURATION));
- psyConf->granuleLength = granuleLength;
- psyConf->filterbank = filterbank;
-
- psyConf->allowIS = (useIS) && ( (bitrate/bandwidth) < 5 );
-
- /* init sfb table */
- ErrorStatus = FDKaacEnc_initSfbTable(samplerate,blocktype,granuleLength,psyConf->sfbOffset,&psyConf->sfbCnt);
- if (ErrorStatus != AAC_ENC_OK)
- return ErrorStatus;
-
- /* calculate barc values for each pb */
- FDKaacEnc_initBarcValues(psyConf->sfbCnt,
- psyConf->sfbOffset,
- psyConf->sfbOffset[psyConf->sfbCnt],
- samplerate,
- sfbBarcVal);
-
- FDKaacEnc_InitMinPCMResolution(psyConf->sfbCnt,
- psyConf->sfbOffset,
- psyConf->sfbPcmQuantThreshold);
-
- /* calculate spreading function */
- FDKaacEnc_initSpreading(psyConf->sfbCnt,
- sfbBarcVal,
- psyConf->sfbMaskLowFactor,
- psyConf->sfbMaskHighFactor,
- psyConf->sfbMaskLowFactorSprEn,
- psyConf->sfbMaskHighFactorSprEn,
- bitrate,
- blocktype);
-
- /* init ratio */
-
- psyConf->maxAllowedIncreaseFactor = 2; /* integer */
- psyConf->minRemainingThresholdFactor = (FIXP_SGL)0x0148; /* FL2FXCONST_SGL(0.01f); */ /* fract */
-
- psyConf->clipEnergy = (FIXP_DBL)0x773593ff; /* FL2FXCONST_DBL(1.0e9*NORM_PCM_ENERGY); */
-
- if (blocktype!=SHORT_WINDOW) {
- psyConf->lowpassLine = (INT)((2*bandwidth*frameLengthLong)/samplerate);
- psyConf->lowpassLineLFE = LFE_LOWPASS_LINE;
- }
- else {
- psyConf->lowpassLine = (INT)((2*bandwidth*frameLengthShort)/samplerate);
- psyConf->lowpassLineLFE = 0; /* LFE only in lonf blocks */
- /* psyConf->clipEnergy /= (TRANS_FAC * TRANS_FAC); */
- psyConf->clipEnergy >>= 6;
- }
+ FB_TYPE filterbank) {
+ AAC_ENCODER_ERROR ErrorStatus;
+ INT sfb;
+ FIXP_DBL sfbBarcVal[MAX_SFB];
+ const INT frameLengthLong = granuleLength;
+ const INT frameLengthShort = granuleLength / TRANS_FAC;
+ INT downscaleFactor = 1;
+
+ switch (granuleLength) {
+ case 256:
+ case 240:
+ downscaleFactor = 2;
+ break;
+ case 128:
+ case 120:
+ downscaleFactor = 4;
+ break;
+ default:
+ downscaleFactor = 1;
+ break;
+ }
- for (sfb = 0; sfb < psyConf->sfbCnt; sfb++){
- if (psyConf->sfbOffset[sfb] >= psyConf->lowpassLine)
- break;
- }
- psyConf->sfbActive = FDKmax(sfb, 1);
+ FDKmemclear(psyConf, sizeof(PSY_CONFIGURATION));
+ psyConf->granuleLength = granuleLength;
+ psyConf->filterbank = filterbank;
+
+ psyConf->allowIS = (useIS) && ((bitrate / bandwidth) < 5);
+ psyConf->allowMS = useMS;
+
+ /* init sfb table */
+ ErrorStatus = FDKaacEnc_initSfbTable(samplerate * downscaleFactor, blocktype,
+ granuleLength * downscaleFactor,
+ psyConf->sfbOffset, &psyConf->sfbCnt);
+
+ if (ErrorStatus != AAC_ENC_OK) return ErrorStatus;
+
+ /* calculate barc values for each pb */
+ FDKaacEnc_initBarcValues(psyConf->sfbCnt, psyConf->sfbOffset,
+ psyConf->sfbOffset[psyConf->sfbCnt], samplerate,
+ sfbBarcVal);
+
+ FDKaacEnc_InitMinPCMResolution(psyConf->sfbCnt, psyConf->sfbOffset,
+ psyConf->sfbPcmQuantThreshold);
+
+ /* calculate spreading function */
+ FDKaacEnc_initSpreading(psyConf->sfbCnt, sfbBarcVal,
+ psyConf->sfbMaskLowFactor, psyConf->sfbMaskHighFactor,
+ psyConf->sfbMaskLowFactorSprEn,
+ psyConf->sfbMaskHighFactorSprEn, bitrate, blocktype);
+
+ /* init ratio */
+
+ psyConf->maxAllowedIncreaseFactor = 2; /* integer */
+ psyConf->minRemainingThresholdFactor = (FIXP_SGL)0x0148;
+ /* FL2FXCONST_SGL(0.01f); */ /* fract */
+
+ psyConf->clipEnergy =
+ (FIXP_DBL)0x773593ff; /* FL2FXCONST_DBL(1.0e9*NORM_PCM_ENERGY); */
+
+ if (blocktype != SHORT_WINDOW) {
+ psyConf->lowpassLine =
+ (INT)((2 * bandwidth * frameLengthLong) / samplerate);
+ psyConf->lowpassLineLFE = LFE_LOWPASS_LINE;
+ } else {
+ psyConf->lowpassLine =
+ (INT)((2 * bandwidth * frameLengthShort) / samplerate);
+ psyConf->lowpassLineLFE = 0; /* LFE only in lonf blocks */
+ /* psyConf->clipEnergy /= (TRANS_FAC * TRANS_FAC); */
+ psyConf->clipEnergy >>= 6;
+ }
- for (sfb = 0; sfb < psyConf->sfbCnt; sfb++){
- if (psyConf->sfbOffset[sfb] >= psyConf->lowpassLineLFE)
- break;
- }
- psyConf->sfbActiveLFE = sfb;
- psyConf->sfbActive = FDKmax(psyConf->sfbActive, psyConf->sfbActiveLFE);
-
- /* calculate minSnr */
- FDKaacEnc_initMinSnr(bitrate,
- samplerate,
- psyConf->sfbOffset[psyConf->sfbCnt],
- psyConf->sfbOffset,
- psyConf->sfbActive,
- blocktype,
- psyConf->sfbMinSnrLdData);
-
- return AAC_ENC_OK;
-}
+ for (sfb = 0; sfb < psyConf->sfbCnt; sfb++) {
+ if (psyConf->sfbOffset[sfb] >= psyConf->lowpassLine) break;
+ }
+ psyConf->sfbActive = fMax(sfb, 1);
+ for (sfb = 0; sfb < psyConf->sfbCnt; sfb++) {
+ if (psyConf->sfbOffset[sfb] >= psyConf->lowpassLineLFE) break;
+ }
+ psyConf->sfbActiveLFE = sfb;
+ psyConf->sfbActive = fMax(psyConf->sfbActive, psyConf->sfbActiveLFE);
+
+ /* calculate minSnr */
+ FDKaacEnc_initMinSnr(bitrate, samplerate * downscaleFactor,
+ psyConf->sfbOffset[psyConf->sfbCnt], psyConf->sfbOffset,
+ psyConf->sfbActive, blocktype, psyConf->sfbMinSnrLdData);
+
+ return AAC_ENC_OK;
+}