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Diffstat (limited to 'fdk-aac/libDRCdec/src/drcDec_selectionProcess.cpp')
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diff --git a/fdk-aac/libDRCdec/src/drcDec_selectionProcess.cpp b/fdk-aac/libDRCdec/src/drcDec_selectionProcess.cpp new file mode 100644 index 0000000..9228197 --- /dev/null +++ b/fdk-aac/libDRCdec/src/drcDec_selectionProcess.cpp @@ -0,0 +1,3099 @@ +/* ----------------------------------------------------------------------------- +Software License for The Fraunhofer FDK AAC Codec Library for Android + +© 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. + +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: + +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 +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. + +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." + +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. + +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. + +5. CONTACT INFORMATION + +Fraunhofer Institute for Integrated Circuits IIS +Attention: Audio and Multimedia Departments - FDK AAC LL +Am Wolfsmantel 33 +91058 Erlangen, Germany + +www.iis.fraunhofer.de/amm +amm-info@iis.fraunhofer.de +----------------------------------------------------------------------------- */ + +/************************* MPEG-D DRC decoder library ************************** + + Author(s): Andreas Hoelzer + + Description: DRC Set Selection + +*******************************************************************************/ + +#include "drcDec_selectionProcess.h" +#include "drcDec_tools.h" + +#define UNDEFINED_LOUDNESS_VALUE (FIXP_DBL) MAXVAL_DBL + +typedef enum { + DETR_NONE = 0, + DETR_NIGHT = 1, + DETR_NOISY = 2, + DETR_LIMITED = 3, + DETR_LOWLEVEL = 4, + DETR_DIALOG = 5, + DETR_GENERAL_COMPR = 6, + DETR_EXPAND = 7, + DETR_ARTISTIC = 8, + DETR_COUNT +} DRC_EFFECT_TYPE_REQUEST; + +typedef enum { + DFRT_EFFECT_TYPE, + DFRT_DYNAMIC_RANGE, + DFRT_DRC_CHARACTERISTIC +} DRC_FEATURE_REQUEST_TYPE; + +typedef enum { + MDR_DEFAULT = 0, + MDR_PROGRAM_LOUDNESS = 1, + MDR_ANCHOR_LOUDNESS = 2 +} METHOD_DEFINITION_REQUEST; + +typedef enum { + MSR_DEFAULT = 0, + MSR_BS_1770_4 = 1, + MSR_USER = 2, + MSR_EXPERT_PANEL = 3, + MSR_RESERVED_A = 4, + MSR_RESERVED_B = 5, + MSR_RESERVED_C = 6, + MSR_RESERVED_D = 7, + MSR_RESERVED_E = 8 +} MEASUREMENT_SYSTEM_REQUEST; + +typedef enum { + LPR_DEFAULT = 0, + LPR_OFF = 1, + LPR_HIGHPASS = 2 +} LOUDNESS_PREPROCESSING_REQUEST; + +typedef enum { + DRMRT_SHORT_TERM_LOUDNESS_TO_AVG = 0, + DRMRT_MOMENTARY_LOUDNESS_TO_AVG = 1, + DRMRT_TOP_OF_LOUDNESS_RANGE_TO_AVG = 2 +} DYN_RANGE_MEASUREMENT_REQUEST_TYPE; + +typedef enum { + TCRT_DOWNMIX_ID = 0, + TCRT_TARGET_LAYOUT = 1, + TCRT_TARGET_CHANNEL_COUNT = 2 +} TARGET_CONFIG_REQUEST_TYPE; + +typedef shouldBeUnion { + struct { + UCHAR numRequests; + UCHAR numRequestsDesired; + DRC_EFFECT_TYPE_REQUEST request[MAX_REQUESTS_DRC_EFFECT_TYPE]; + } drcEffectType; + struct { + DYN_RANGE_MEASUREMENT_REQUEST_TYPE measurementRequestType; + UCHAR requestedIsRange; + FIXP_DBL requestValue; /* e = 7 */ + FIXP_DBL requestValueMin; /* e = 7 */ + FIXP_DBL requestValueMax; /* e = 7 */ + } dynamicRange; + UCHAR drcCharacteristic; +} +DRC_FEATURE_REQUEST; + +typedef struct { + /* system parameters */ + SCHAR baseChannelCount; + SCHAR baseLayout; /* not supported */ + TARGET_CONFIG_REQUEST_TYPE targetConfigRequestType; + UCHAR numDownmixIdRequests; + UCHAR downmixIdRequested[MAX_REQUESTS_DOWNMIX_ID]; + UCHAR targetLayoutRequested; + UCHAR targetChannelCountRequested; + LONG audioSampleRate; /* needed for complexity estimation, currently not + supported */ + + /* loudness normalization parameters */ + UCHAR loudnessNormalizationOn; + FIXP_DBL targetLoudness; /* e = 7 */ + UCHAR albumMode; + UCHAR peakLimiterPresent; + UCHAR loudnessDeviationMax; /* resolution: 1 dB */ + METHOD_DEFINITION_REQUEST loudnessMeasurementMethod; + MEASUREMENT_SYSTEM_REQUEST loudnessMeasurementSystem; + LOUDNESS_PREPROCESSING_REQUEST loudnessMeasurementPreProc; /* not supported */ + LONG deviceCutOffFrequency; /* not supported */ + FIXP_DBL loudnessNormalizationGainDbMax; /* e = 7 */ + FIXP_DBL loudnessNormalizationGainModificationDb; /* e = 7 */ + FIXP_DBL outputPeakLevelMax; /* e = 7 */ + + /* dynamic range control parameters */ + UCHAR dynamicRangeControlOn; + UCHAR numDrcFeatureRequests; + DRC_FEATURE_REQUEST_TYPE drcFeatureRequestType[MAX_REQUESTS_DRC_FEATURE]; + DRC_FEATURE_REQUEST drcFeatureRequest[MAX_REQUESTS_DRC_FEATURE]; + + /* other */ + FIXP_SGL boost; /* e = 1 */ + FIXP_SGL compress; /* e = 1 */ + UCHAR drcCharacteristicTarget; /* not supported */ +} SEL_PROC_INPUT, *HANDLE_SEL_PROC_INPUT; + +/* Table E.1 of ISO/IEC DIS 23003-4: Recommended order of fallback effect type + * requests */ +static DRC_EFFECT_TYPE_REQUEST fallbackEffectTypeRequests[6][5] = { + /* Night */ {DETR_GENERAL_COMPR, DETR_NOISY, DETR_LIMITED, DETR_LOWLEVEL, + DETR_DIALOG}, + /* Noisy */ + {DETR_GENERAL_COMPR, DETR_NIGHT, DETR_LIMITED, DETR_LOWLEVEL, DETR_DIALOG}, + /* Limited */ + {DETR_GENERAL_COMPR, DETR_NIGHT, DETR_NOISY, DETR_LOWLEVEL, DETR_DIALOG}, + /* LowLevel */ + {DETR_GENERAL_COMPR, DETR_NOISY, DETR_NIGHT, DETR_LIMITED, DETR_DIALOG}, + /* Dialog */ + {DETR_GENERAL_COMPR, DETR_NIGHT, DETR_NOISY, DETR_LIMITED, DETR_LOWLEVEL}, + /* General */ + {DETR_NIGHT, DETR_NOISY, DETR_LIMITED, DETR_LOWLEVEL, DETR_DIALOG}}; + +/*******************************************/ +typedef struct { + UCHAR selectionFlag; + UCHAR downmixIdRequestIndex; + FIXP_DBL outputPeakLevel; /* e = 7 */ + FIXP_DBL loudnessNormalizationGainDbAdjusted; /* e = 7 */ + FIXP_DBL outputLoudness; /* e = 7 */ + DRC_INSTRUCTIONS_UNI_DRC* pInst; + +} DRCDEC_SELECTION_DATA; + +typedef struct { + UCHAR numData; + DRCDEC_SELECTION_DATA data[(12 + 1 + 6)]; + +} DRCDEC_SELECTION; + +/*******************************************/ +/* helper functions */ +/*******************************************/ + +static int _isError(int x) { + if (x < DRCDEC_SELECTION_PROCESS_WARNING) { + return 1; + } + + return 0; +} + +/* compare and assign */ +static inline int _compAssign(UCHAR* dest, const UCHAR src) { + int diff = 0; + if (*dest != src) diff = 1; + *dest = src; + return diff; +} + +static inline int _compAssign(SCHAR* dest, const SCHAR src) { + int diff = 0; + if (*dest != src) diff = 1; + *dest = src; + return diff; +} + +static inline int _compAssign(FIXP_DBL* dest, const FIXP_DBL src) { + int diff = 0; + if (*dest != src) diff = 1; + *dest = src; + return diff; +} + +static inline int _compAssign(FIXP_SGL* dest, const FIXP_SGL src) { + int diff = 0; + if (*dest != src) diff = 1; + *dest = src; + return diff; +} + +static inline int _compAssign(TARGET_CONFIG_REQUEST_TYPE* dest, const int src) { + int diff = 0; + if (*dest != src) diff = 1; + *dest = (TARGET_CONFIG_REQUEST_TYPE)src; + return diff; +} + +static inline int _compAssign(METHOD_DEFINITION_REQUEST* dest, const int src) { + int diff = 0; + if (*dest != src) diff = 1; + *dest = (METHOD_DEFINITION_REQUEST)src; + return diff; +} + +static inline int _compAssign(DRC_FEATURE_REQUEST_TYPE* dest, const int src) { + int diff = 0; + if (*dest != src) diff = 1; + *dest = (DRC_FEATURE_REQUEST_TYPE)src; + return diff; +} + +static inline int _compAssign(DRC_EFFECT_TYPE_REQUEST* dest, const int src) { + int diff = 0; + if (*dest != src) diff = 1; + *dest = (DRC_EFFECT_TYPE_REQUEST)src; + return diff; +} + +static DRCDEC_SELECTION_DATA* _drcdec_selection_addNew( + DRCDEC_SELECTION* pSelection); + +static DRCDEC_SELECTION_DATA* _drcdec_selection_add( + DRCDEC_SELECTION* pSelection, DRCDEC_SELECTION_DATA* pDataIn); + +static int _drcdec_selection_clear(DRCDEC_SELECTION* pSelection); + +static int _drcdec_selection_getNumber(DRCDEC_SELECTION* pSelection); + +static int _drcdec_selection_setNumber(DRCDEC_SELECTION* pSelection, int num); + +static DRCDEC_SELECTION_DATA* _drcdec_selection_getAt( + DRCDEC_SELECTION* pSelection, int at); + +static int _swapSelectionAndClear(DRCDEC_SELECTION** ppCandidatesPotential, + DRCDEC_SELECTION** ppCandidatesSelected); + +static int _swapSelection(DRCDEC_SELECTION** ppCandidatesPotential, + DRCDEC_SELECTION** ppCandidatesSelected); + +/*******************************************/ +/* declarations of static functions */ +/*******************************************/ + +static DRCDEC_SELECTION_PROCESS_RETURN _initDefaultParams( + HANDLE_SEL_PROC_INPUT hSelProcInput); + +static DRCDEC_SELECTION_PROCESS_RETURN _initCodecModeParams( + HANDLE_SEL_PROC_INPUT hSelProcInput, const SEL_PROC_CODEC_MODE codecMode); + +static DRCDEC_SELECTION_PROCESS_RETURN _drcSetPreSelection( + SEL_PROC_INPUT* hSelProcInput, HANDLE_UNI_DRC_CONFIG hUniDrcConfig, + HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, + DRCDEC_SELECTION** ppCandidatesPotential, + DRCDEC_SELECTION** ppCandidatesSelected, SEL_PROC_CODEC_MODE codecMode); + +static DRCDEC_SELECTION_PROCESS_RETURN _drcSetFinalSelection_peakValue0( + DRCDEC_SELECTION* pCandidatesPotential, + DRCDEC_SELECTION* pCandidatesSelected); + +static DRCDEC_SELECTION_PROCESS_RETURN _dynamicRangeMeasurement( + HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, DRC_INSTRUCTIONS_UNI_DRC* pInst, + UCHAR downmixIdRequested, + DYN_RANGE_MEASUREMENT_REQUEST_TYPE dynamicRangeMeasurementType, + int albumMode, int* peakToAveragePresent, FIXP_DBL* peakToAverage); + +static DRCDEC_SELECTION_PROCESS_RETURN _channelLayoutToDownmixIdMapping( + HANDLE_SEL_PROC_INPUT hSelProcInput, HANDLE_UNI_DRC_CONFIG hUniDrcConfig); + +static DRCDEC_SELECTION_PROCESS_RETURN _generateVirtualDrcSets( + HANDLE_SEL_PROC_INPUT hSelProcInput, HANDLE_UNI_DRC_CONFIG hUniDrcConfig, + SEL_PROC_CODEC_MODE codecMode); + +static DRCDEC_SELECTION_PROCESS_RETURN _drcSetRequestSelection( + SEL_PROC_INPUT* hSelProcInput, HANDLE_UNI_DRC_CONFIG hUniDrcConfig, + HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, + DRCDEC_SELECTION** ppCandidatesPotential, + DRCDEC_SELECTION** ppCandidatesSelected); + +static DRCDEC_SELECTION_PROCESS_RETURN _drcSetFinalSelection( + HANDLE_SEL_PROC_INPUT hSelProcInput, HANDLE_UNI_DRC_CONFIG hUniDrcConfig, + DRCDEC_SELECTION** ppCandidatesPotential, + DRCDEC_SELECTION** ppCandidatesSelected, SEL_PROC_CODEC_MODE codecMode); + +static DRCDEC_SELECTION_PROCESS_RETURN _generateOutputInfo( + HANDLE_SEL_PROC_INPUT hSelProcInput, HANDLE_SEL_PROC_OUTPUT hSelProcOutput, + HANDLE_UNI_DRC_CONFIG hUniDrcConfig, + HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, + DRCDEC_SELECTION_DATA* pSelectionData, SEL_PROC_CODEC_MODE codecMode); + +static DRCDEC_SELECTION_PROCESS_RETURN _selectDownmixMatrix( + HANDLE_SEL_PROC_OUTPUT hSelProcOutput, HANDLE_UNI_DRC_CONFIG hUniDrcConfig); + +static DRCDEC_SELECTION_PROCESS_RETURN _getLoudness( + HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, int albumMode, + METHOD_DEFINITION_REQUEST measurementMethodRequested, + MEASUREMENT_SYSTEM_REQUEST measurementSystemRequested, + FIXP_DBL targetLoudness, int drcSetId, int downmixIdRequested, + FIXP_DBL* pLoudnessNormalizationGain, FIXP_DBL* pLoudness); + +static DRCDEC_SELECTION_PROCESS_RETURN _getMixingLevel( + HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, int downmixIdRequested, + int drcSetIdRequested, int albumMode, FIXP_DBL* pMixingLevel); + +static DRCDEC_SELECTION_PROCESS_RETURN _getSignalPeakLevel( + HANDLE_SEL_PROC_INPUT hSelProcInput, HANDLE_UNI_DRC_CONFIG hUniDrcConfig, + HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, DRC_INSTRUCTIONS_UNI_DRC* pInst, + int downmixIdRequested, int* explicitPeakInformationPresent, + FIXP_DBL* signalPeakLevelOut, /* e = 7 */ + SEL_PROC_CODEC_MODE codecMode); + +static DRCDEC_SELECTION_PROCESS_RETURN _extractLoudnessPeakToAverageValue( + LOUDNESS_INFO* loudnessInfo, + DYN_RANGE_MEASUREMENT_REQUEST_TYPE dynamicRangeMeasurementType, + int* pLoudnessPeakToAverageValuePresent, + FIXP_DBL* pLoudnessPeakToAverageValue); + +static DRCDEC_SELECTION_PROCESS_RETURN _selectAlbumLoudness( + HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, + DRCDEC_SELECTION* pCandidatesPotential, + DRCDEC_SELECTION* pCandidatesSelected); + +static int _findMethodDefinition(LOUDNESS_INFO* pLoudnessInfo, + int methodDefinition, int startIndex); + +/*******************************************/ +/* public functions */ +/*******************************************/ + +struct s_drcdec_selection_process { + SEL_PROC_CODEC_MODE codecMode; + SEL_PROC_INPUT selProcInput; + DRCDEC_SELECTION + selectionData[2]; /* 2 instances, one before and one after selection */ +}; + +DRCDEC_SELECTION_PROCESS_RETURN +drcDec_SelectionProcess_Create(HANDLE_DRC_SELECTION_PROCESS* phInstance) { + HANDLE_DRC_SELECTION_PROCESS hInstance; + hInstance = (HANDLE_DRC_SELECTION_PROCESS)FDKcalloc( + 1, sizeof(struct s_drcdec_selection_process)); + + if (!hInstance) return DRCDEC_SELECTION_PROCESS_OUTOFMEMORY; + + hInstance->codecMode = SEL_PROC_CODEC_MODE_UNDEFINED; + + *phInstance = hInstance; + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +DRCDEC_SELECTION_PROCESS_RETURN +drcDec_SelectionProcess_Init(HANDLE_DRC_SELECTION_PROCESS hInstance) { + if (!hInstance) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + _initDefaultParams(&hInstance->selProcInput); + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +DRCDEC_SELECTION_PROCESS_RETURN +drcDec_SelectionProcess_SetCodecMode(HANDLE_DRC_SELECTION_PROCESS hInstance, + const SEL_PROC_CODEC_MODE codecMode) { + DRCDEC_SELECTION_PROCESS_RETURN retVal = DRCDEC_SELECTION_PROCESS_NO_ERROR; + + if (!hInstance) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + switch (codecMode) { + case SEL_PROC_MPEG_4_AAC: + case SEL_PROC_MPEG_D_USAC: + case SEL_PROC_TEST_TIME_DOMAIN: + case SEL_PROC_TEST_QMF_DOMAIN: + case SEL_PROC_TEST_STFT_DOMAIN: + hInstance->codecMode = codecMode; + break; + + case SEL_PROC_CODEC_MODE_UNDEFINED: + default: + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + + retVal = _initCodecModeParams(&(hInstance->selProcInput), + hInstance->codecMode = codecMode); + + return retVal; +} + +DRCDEC_SELECTION_PROCESS_RETURN +drcDec_SelectionProcess_SetParam(HANDLE_DRC_SELECTION_PROCESS hInstance, + const SEL_PROC_USER_PARAM requestType, + FIXP_DBL requestValue, int* pDiff) { + INT requestValueInt = (INT)requestValue; + int i, diff = 0; + SEL_PROC_INPUT* pSelProcInput = &(hInstance->selProcInput); + + switch (requestType) { + case SEL_PROC_LOUDNESS_NORMALIZATION_ON: + if ((requestValueInt != 0) && (requestValueInt != 1)) + return DRCDEC_SELECTION_PROCESS_PARAM_OUT_OF_RANGE; + diff |= + _compAssign(&pSelProcInput->loudnessNormalizationOn, requestValueInt); + break; + case SEL_PROC_TARGET_LOUDNESS: + /* Lower boundary: drcSetTargetLoudnessValueLower default value. + Upper boundary: drcSetTargetLoudnessValueUpper default value */ + if ((requestValue < FL2FXCONST_DBL(-63.0f / (float)(1 << 7))) || + (requestValue > (FIXP_DBL)0)) + return DRCDEC_SELECTION_PROCESS_PARAM_OUT_OF_RANGE; + if (requestValue > + FL2FXCONST_DBL(-10.0f / + (float)(1 << 7))) /* recommended maximum value */ + requestValue = FL2FXCONST_DBL(-10.0f / (float)(1 << 7)); + diff |= _compAssign(&pSelProcInput->targetLoudness, requestValue); + break; + case SEL_PROC_EFFECT_TYPE: + if ((requestValueInt < -1) || (requestValueInt >= DETR_COUNT)) + return DRCDEC_SELECTION_PROCESS_PARAM_OUT_OF_RANGE; + /* Caution. This overrides all drcFeatureRequests requested so far! */ + if (requestValueInt == -1) { + diff |= _compAssign(&pSelProcInput->dynamicRangeControlOn, 0); + } else if (requestValueInt == DETR_NONE) { + diff |= _compAssign(&pSelProcInput->dynamicRangeControlOn, 1); + diff |= _compAssign(&pSelProcInput->numDrcFeatureRequests, 0); + } else { + diff |= _compAssign(&pSelProcInput->dynamicRangeControlOn, 1); + diff |= _compAssign(&pSelProcInput->numDrcFeatureRequests, 1); + diff |= _compAssign(&pSelProcInput->drcFeatureRequestType[0], + DFRT_EFFECT_TYPE); + diff |= _compAssign(&pSelProcInput->drcFeatureRequest[0] + .drcEffectType.numRequestsDesired, + 1); + diff |= _compAssign( + &pSelProcInput->drcFeatureRequest[0].drcEffectType.request[0], + requestValueInt); + if ((requestValueInt > DETR_NONE) && + (requestValueInt <= DETR_GENERAL_COMPR)) { + /* use fallback effect type requests */ + for (i = 0; i < 5; i++) { + diff |= + _compAssign(&pSelProcInput->drcFeatureRequest[0] + .drcEffectType.request[i + 1], + fallbackEffectTypeRequests[requestValueInt - 1][i]); + } + diff |= _compAssign( + &pSelProcInput->drcFeatureRequest[0].drcEffectType.numRequests, + 6); + } else { + diff |= _compAssign( + &pSelProcInput->drcFeatureRequest[0].drcEffectType.numRequests, + 1); + } + } + break; + case SEL_PROC_LOUDNESS_MEASUREMENT_METHOD: + if ((requestValueInt < 0) || (requestValueInt > 2)) + return DRCDEC_SELECTION_PROCESS_PARAM_OUT_OF_RANGE; + diff |= _compAssign(&pSelProcInput->loudnessMeasurementMethod, + requestValueInt); + break; + case SEL_PROC_DOWNMIX_ID: + diff |= + _compAssign(&pSelProcInput->targetConfigRequestType, TCRT_DOWNMIX_ID); + if (requestValueInt < 0) { /* negative requests signal no downmixId */ + diff |= _compAssign(&pSelProcInput->numDownmixIdRequests, 0); + } else { + diff |= _compAssign(&pSelProcInput->numDownmixIdRequests, 1); + diff |= + _compAssign(&pSelProcInput->downmixIdRequested[0], requestValueInt); + } + break; + case SEL_PROC_TARGET_LAYOUT: + /* Request target layout according to ChannelConfiguration in ISO/IEC + * 23001-8 (CICP) */ + if ((requestValueInt < 1) || (requestValueInt > 63)) + return DRCDEC_SELECTION_PROCESS_PARAM_OUT_OF_RANGE; + diff |= _compAssign(&pSelProcInput->targetConfigRequestType, + TCRT_TARGET_LAYOUT); + diff |= + _compAssign(&pSelProcInput->targetLayoutRequested, requestValueInt); + break; + case SEL_PROC_TARGET_CHANNEL_COUNT: + if ((requestValueInt < 1) || (requestValueInt > 8)) + return DRCDEC_SELECTION_PROCESS_PARAM_OUT_OF_RANGE; + diff |= _compAssign(&pSelProcInput->targetConfigRequestType, + TCRT_TARGET_CHANNEL_COUNT); + diff |= _compAssign(&pSelProcInput->targetChannelCountRequested, + requestValueInt); + break; + case SEL_PROC_BASE_CHANNEL_COUNT: + if (requestValueInt < 0) + return DRCDEC_SELECTION_PROCESS_PARAM_OUT_OF_RANGE; + diff |= _compAssign(&pSelProcInput->baseChannelCount, requestValueInt); + break; + case SEL_PROC_SAMPLE_RATE: + if (requestValueInt < 0) + return DRCDEC_SELECTION_PROCESS_PARAM_OUT_OF_RANGE; + diff |= _compAssign(&pSelProcInput->audioSampleRate, requestValueInt); + break; + case SEL_PROC_BOOST: + if ((requestValue < (FIXP_DBL)0) || + (requestValue > FL2FXCONST_DBL(1.0f / (float)(1 << 1)))) + return DRCDEC_SELECTION_PROCESS_PARAM_OUT_OF_RANGE; + diff |= _compAssign(&pSelProcInput->boost, FX_DBL2FX_SGL(requestValue)); + break; + case SEL_PROC_COMPRESS: + if ((requestValue < (FIXP_DBL)0) || + (requestValue > FL2FXCONST_DBL(1.0f / (float)(1 << 1)))) + return DRCDEC_SELECTION_PROCESS_PARAM_OUT_OF_RANGE; + diff |= + _compAssign(&pSelProcInput->compress, FX_DBL2FX_SGL(requestValue)); + break; + default: + return DRCDEC_SELECTION_PROCESS_INVALID_PARAM; + } + + if (pDiff != NULL) { + *pDiff |= diff; + } + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +FIXP_DBL +drcDec_SelectionProcess_GetParam(HANDLE_DRC_SELECTION_PROCESS hInstance, + const SEL_PROC_USER_PARAM requestType) { + SEL_PROC_INPUT* pSelProcInput = &(hInstance->selProcInput); + + switch (requestType) { + case SEL_PROC_LOUDNESS_NORMALIZATION_ON: + return (FIXP_DBL)pSelProcInput->loudnessNormalizationOn; + case SEL_PROC_DYNAMIC_RANGE_CONTROL_ON: + return (FIXP_DBL)pSelProcInput->dynamicRangeControlOn; + default: + return (FIXP_DBL)0; + } +} + +DRCDEC_SELECTION_PROCESS_RETURN +drcDec_SelectionProcess_Delete(HANDLE_DRC_SELECTION_PROCESS* phInstance) { + if (phInstance == NULL || *phInstance == NULL) + return DRCDEC_SELECTION_PROCESS_INVALID_HANDLE; + + FDKfree(*phInstance); + *phInstance = NULL; + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +DRCDEC_SELECTION_PROCESS_RETURN +drcDec_SelectionProcess_Process(HANDLE_DRC_SELECTION_PROCESS hInstance, + HANDLE_UNI_DRC_CONFIG hUniDrcConfig, + HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, + HANDLE_SEL_PROC_OUTPUT hSelProcOutput) { + DRCDEC_SELECTION_PROCESS_RETURN retVal = DRCDEC_SELECTION_PROCESS_NO_ERROR; + DRCDEC_SELECTION* pCandidatesSelected; + DRCDEC_SELECTION* pCandidatesPotential; + + if (hInstance == NULL) return DRCDEC_SELECTION_PROCESS_INVALID_HANDLE; + + pCandidatesSelected = &(hInstance->selectionData[0]); + pCandidatesPotential = &(hInstance->selectionData[1]); + _drcdec_selection_setNumber(pCandidatesSelected, 0); + _drcdec_selection_setNumber(pCandidatesPotential, 0); + + retVal = _generateVirtualDrcSets(&(hInstance->selProcInput), hUniDrcConfig, + hInstance->codecMode); + if (retVal) return (retVal); + + if (hInstance->selProcInput.baseChannelCount != + hUniDrcConfig->channelLayout.baseChannelCount) { + hInstance->selProcInput.baseChannelCount = + hUniDrcConfig->channelLayout.baseChannelCount; + } + + if ((hInstance->selProcInput.targetConfigRequestType != 0) || + (hInstance->selProcInput.targetConfigRequestType == 0 && + hInstance->selProcInput.numDownmixIdRequests == 0)) { + retVal = _channelLayoutToDownmixIdMapping(&(hInstance->selProcInput), + hUniDrcConfig); + + if (_isError(retVal)) return (retVal); + } + + retVal = _drcSetPreSelection(&(hInstance->selProcInput), hUniDrcConfig, + hLoudnessInfoSet, &pCandidatesPotential, + &pCandidatesSelected, hInstance->codecMode); + if (retVal) return (retVal); + + if (hInstance->selProcInput.albumMode) { + _swapSelectionAndClear(&pCandidatesPotential, &pCandidatesSelected); + + retVal = _selectAlbumLoudness(hLoudnessInfoSet, pCandidatesPotential, + pCandidatesSelected); + if (retVal) return (retVal); + + if (_drcdec_selection_getNumber(pCandidatesSelected) == 0) { + _swapSelection(&pCandidatesPotential, &pCandidatesSelected); + } + } + + _swapSelectionAndClear(&pCandidatesPotential, &pCandidatesSelected); + + retVal = _drcSetRequestSelection(&(hInstance->selProcInput), hUniDrcConfig, + hLoudnessInfoSet, &pCandidatesPotential, + &pCandidatesSelected); + if (retVal) return (retVal); + + retVal = _drcSetFinalSelection(&(hInstance->selProcInput), hUniDrcConfig, + &pCandidatesPotential, &pCandidatesSelected, + hInstance->codecMode); + if (retVal) return (retVal); + + retVal = _generateOutputInfo( + &(hInstance->selProcInput), hSelProcOutput, hUniDrcConfig, + hLoudnessInfoSet, &(pCandidatesSelected->data[0]), hInstance->codecMode); + + if (_isError(retVal)) return (retVal); + + retVal = _selectDownmixMatrix(hSelProcOutput, hUniDrcConfig); + if (retVal) return (retVal); + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +/*******************************************/ +/* static functions */ +/*******************************************/ + +static DRCDEC_SELECTION_PROCESS_RETURN _initDefaultParams( + HANDLE_SEL_PROC_INPUT hSelProcInput) { + DRCDEC_SELECTION_PROCESS_RETURN retVal = DRCDEC_SELECTION_PROCESS_NO_ERROR; + + if (hSelProcInput == NULL) return DRCDEC_SELECTION_PROCESS_INVALID_HANDLE; + + /* system parameters */ + hSelProcInput->baseChannelCount = -1; + hSelProcInput->baseLayout = -1; + hSelProcInput->targetConfigRequestType = TCRT_DOWNMIX_ID; + hSelProcInput->numDownmixIdRequests = 0; + + /* loudness normalization parameters */ + hSelProcInput->albumMode = 0; + hSelProcInput->peakLimiterPresent = 0; + hSelProcInput->loudnessNormalizationOn = 1; + hSelProcInput->targetLoudness = FL2FXCONST_DBL(-24.0f / (float)(1 << 7)); + hSelProcInput->loudnessDeviationMax = DEFAULT_LOUDNESS_DEVIATION_MAX; + hSelProcInput->loudnessMeasurementMethod = MDR_DEFAULT; + hSelProcInput->loudnessMeasurementSystem = MSR_DEFAULT; + hSelProcInput->loudnessMeasurementPreProc = LPR_DEFAULT; + hSelProcInput->deviceCutOffFrequency = 500; + hSelProcInput->loudnessNormalizationGainDbMax = + (FIXP_DBL)MAXVAL_DBL; /* infinity as default */ + hSelProcInput->loudnessNormalizationGainModificationDb = (FIXP_DBL)0; + hSelProcInput->outputPeakLevelMax = (FIXP_DBL)0; + if (hSelProcInput->peakLimiterPresent == 1) { + hSelProcInput->outputPeakLevelMax = FL2FXCONST_DBL(6.0f / (float)(1 << 7)); + } + + /* dynamic range control parameters */ + hSelProcInput->dynamicRangeControlOn = 1; + + hSelProcInput->numDrcFeatureRequests = 0; + + /* other parameters */ + hSelProcInput->boost = FL2FXCONST_SGL(1.f / (float)(1 << 1)); + hSelProcInput->compress = FL2FXCONST_SGL(1.f / (float)(1 << 1)); + hSelProcInput->drcCharacteristicTarget = 0; + + return retVal; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _initCodecModeParams( + HANDLE_SEL_PROC_INPUT hSelProcInput, const SEL_PROC_CODEC_MODE codecMode) { + DRCDEC_SELECTION_PROCESS_RETURN retVal = DRCDEC_SELECTION_PROCESS_NO_ERROR; + + if (hSelProcInput == NULL) return DRCDEC_SELECTION_PROCESS_INVALID_HANDLE; + + switch (codecMode) { + case SEL_PROC_MPEG_H_3DA: + hSelProcInput->loudnessDeviationMax = 0; + hSelProcInput->peakLimiterPresent = 1; /* peak limiter is mandatory */ + /* The peak limiter also has to catch overshoots due to user + interactivity, downmixing etc. Therefore the maximum output peak level is + reduced to 0 dB. */ + hSelProcInput->outputPeakLevelMax = (FIXP_DBL)0; + break; + case SEL_PROC_MPEG_4_AAC: + case SEL_PROC_MPEG_D_USAC: + hSelProcInput->loudnessDeviationMax = DEFAULT_LOUDNESS_DEVIATION_MAX; + hSelProcInput->peakLimiterPresent = 1; + /* A peak limiter is present at the end of the decoder, therefore we can + * allow for a maximum output peak level greater than full scale + */ + hSelProcInput->outputPeakLevelMax = + FL2FXCONST_DBL(6.0f / (float)(1 << 7)); + break; + case SEL_PROC_TEST_TIME_DOMAIN: + case SEL_PROC_TEST_QMF_DOMAIN: + case SEL_PROC_TEST_STFT_DOMAIN: + /* for testing, adapt to default settings in reference software */ + hSelProcInput->loudnessNormalizationOn = 0; + hSelProcInput->dynamicRangeControlOn = 0; + break; + case SEL_PROC_CODEC_MODE_UNDEFINED: + default: + hSelProcInput->loudnessDeviationMax = DEFAULT_LOUDNESS_DEVIATION_MAX; + hSelProcInput->peakLimiterPresent = 0; + } + + return retVal; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _channelLayoutToDownmixIdMapping( + HANDLE_SEL_PROC_INPUT hSelProcInput, HANDLE_UNI_DRC_CONFIG hUniDrcConfig) { + DRCDEC_SELECTION_PROCESS_RETURN retVal = DRCDEC_SELECTION_PROCESS_NO_ERROR; + + DOWNMIX_INSTRUCTIONS* pDown = NULL; + + int i; + + hSelProcInput->numDownmixIdRequests = 0; + + switch (hSelProcInput->targetConfigRequestType) { + case TCRT_DOWNMIX_ID: + if (hSelProcInput->numDownmixIdRequests == 0) { + hSelProcInput->downmixIdRequested[0] = 0; + hSelProcInput->numDownmixIdRequests = 1; + } + + break; + + case TCRT_TARGET_LAYOUT: + if (hSelProcInput->targetLayoutRequested == hSelProcInput->baseLayout) { + hSelProcInput->downmixIdRequested[0] = 0; + hSelProcInput->numDownmixIdRequests = 1; + } + + if (hSelProcInput->numDownmixIdRequests == 0) { + for (i = 0; i < hUniDrcConfig->downmixInstructionsCount; i++) { + pDown = &(hUniDrcConfig->downmixInstructions[i]); + + if (hSelProcInput->targetLayoutRequested == pDown->targetLayout) { + hSelProcInput + ->downmixIdRequested[hSelProcInput->numDownmixIdRequests] = + pDown->downmixId; + hSelProcInput->numDownmixIdRequests++; + } + } + } + + if (hSelProcInput->baseLayout == -1) { + retVal = DRCDEC_SELECTION_PROCESS_WARNING; + } + + if (hSelProcInput->numDownmixIdRequests == 0) { + hSelProcInput->downmixIdRequested[0] = 0; + hSelProcInput->numDownmixIdRequests = 1; + retVal = DRCDEC_SELECTION_PROCESS_WARNING; + } + + break; + + case TCRT_TARGET_CHANNEL_COUNT: + if (hSelProcInput->targetChannelCountRequested == + hSelProcInput->baseChannelCount) { + hSelProcInput->downmixIdRequested[0] = 0; + hSelProcInput->numDownmixIdRequests = 1; + } + + if (hSelProcInput->numDownmixIdRequests == 0) { + for (i = 0; i < hUniDrcConfig->downmixInstructionsCount; i++) { + pDown = &(hUniDrcConfig->downmixInstructions[i]); + + if (hSelProcInput->targetChannelCountRequested == + pDown->targetChannelCount) { + hSelProcInput + ->downmixIdRequested[hSelProcInput->numDownmixIdRequests] = + pDown->downmixId; + hSelProcInput->numDownmixIdRequests++; + } + } + } + + if (hSelProcInput->baseChannelCount == -1) { + retVal = DRCDEC_SELECTION_PROCESS_WARNING; + } + + if (hSelProcInput->numDownmixIdRequests == 0) { + retVal = DRCDEC_SELECTION_PROCESS_WARNING; + hSelProcInput->downmixIdRequested[0] = 0; + hSelProcInput->numDownmixIdRequests = 1; + } + + break; + + default: + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + + return retVal; +} + +/*******************************************/ + +/* Note: Numbering of DRC pre-selection steps according to MPEG-D Part-4 DRC + * Amd1 */ + +/* #1: DownmixId of DRC set matches the requested downmixId. + #2: Output channel layout of DRC set matches the requested layout. + #3: Channel count of DRC set matches the requested channel count. */ +static DRCDEC_SELECTION_PROCESS_RETURN _preSelectionRequirement123( + int nRequestedDownmixId, DRC_INSTRUCTIONS_UNI_DRC* pDrcInstructionUniDrc, + int* pMatchFound) { + int i; + *pMatchFound = 0; + + for (i = 0; i < pDrcInstructionUniDrc->downmixIdCount; i++) { + if ((pDrcInstructionUniDrc->downmixId[i] == nRequestedDownmixId) || + (pDrcInstructionUniDrc->downmixId[i] == DOWNMIX_ID_ANY_DOWNMIX) || + ((pDrcInstructionUniDrc->downmixId[i] == DOWNMIX_ID_BASE_LAYOUT) && + (pDrcInstructionUniDrc->drcSetId > 0))) { + *pMatchFound = 1; + break; + } + } + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +/* #4: The DRC set is not a "Fade-" or "Ducking-" only DRC set. */ +static DRCDEC_SELECTION_PROCESS_RETURN _preSelectionRequirement4( + DRC_INSTRUCTIONS_UNI_DRC* pDrcInstruction, int nDynamicRangeControlOn, + int* pMatchFound) { + *pMatchFound = 0; + + if (nDynamicRangeControlOn == 1) { + if ((pDrcInstruction->drcSetEffect != EB_FADE) && + (pDrcInstruction->drcSetEffect != EB_DUCK_OTHER) && + (pDrcInstruction->drcSetEffect != EB_DUCK_SELF) && + (pDrcInstruction->drcSetEffect != 0 || pDrcInstruction->drcSetId < 0)) { + *pMatchFound = 1; + } + } else { + *pMatchFound = 1; + } + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +/* #5: The number of DRC bands is supported. */ +static DRCDEC_SELECTION_PROCESS_RETURN _preSelectionRequirement5( + DRC_INSTRUCTIONS_UNI_DRC* pDrcInstructionUniDrc, + DRC_COEFFICIENTS_UNI_DRC* pCoef, int* pMatchFound) { + int i; + + *pMatchFound = 1; + + if (pCoef == NULL) /* check for parametricDRC */ + { + *pMatchFound = 1; + return DRCDEC_SELECTION_PROCESS_NO_ERROR; + } + + for (i = 0; i < pDrcInstructionUniDrc->nDrcChannelGroups; i++) { + int indexDrcCoeff = pDrcInstructionUniDrc->gainSetIndexForChannelGroup[i]; + int bandCount = 0; + + if (indexDrcCoeff > pCoef->gainSetCount - 1) /* check for parametricDRC */ + { + *pMatchFound = 1; + return DRCDEC_SELECTION_PROCESS_NO_ERROR; + } + + GAIN_SET* gainSet = &(pCoef->gainSet[indexDrcCoeff]); + bandCount = gainSet->bandCount; + + if (bandCount > 4) { + *pMatchFound = 0; + } + } + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +/* #6: Independent use of DRC set is permitted.*/ +static DRCDEC_SELECTION_PROCESS_RETURN _preSelectionRequirement6( + DRC_INSTRUCTIONS_UNI_DRC* pDrcInstructionUniDrc, int* pMatchFound) { + *pMatchFound = 0; + + if (((pDrcInstructionUniDrc->dependsOnDrcSetPresent == 0) && + (pDrcInstructionUniDrc->noIndependentUse == 0)) || + (pDrcInstructionUniDrc->dependsOnDrcSetPresent == 1)) { + *pMatchFound = 1; + } + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +/* #7: DRC sets that require EQ are only permitted if EQ is supported. */ +static DRCDEC_SELECTION_PROCESS_RETURN _preSelectionRequirement7( + DRC_INSTRUCTIONS_UNI_DRC* pDrcInstructionUniDrc, int* pMatchFound) { + *pMatchFound = 1; + + if (pDrcInstructionUniDrc->requiresEq) { + /* EQ is not supported */ + *pMatchFound = 0; + } + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +static void _setSelectionDataInfo( + DRCDEC_SELECTION_DATA* pData, FIXP_DBL loudness, /* e = 7 */ + FIXP_DBL loudnessNormalizationGainDb, /* e = 7 */ + FIXP_DBL loudnessNormalizationGainDbMax, /* e = 7 */ + FIXP_DBL loudnessDeviationMax, /* e = 7 */ + FIXP_DBL signalPeakLevel, /* e = 7 */ + FIXP_DBL outputPeakLevelMax, /* e = 7 */ + int applyAdjustment) { + FIXP_DBL adjustment = 0; /* e = 8 */ + + /* use e = 8 for all function parameters to prevent overflow */ + loudness >>= 1; + loudnessNormalizationGainDb >>= 1; + loudnessNormalizationGainDbMax >>= 1; + loudnessDeviationMax >>= 1; + signalPeakLevel >>= 1; + outputPeakLevelMax >>= 1; + + if (applyAdjustment) { + adjustment = + fMax((FIXP_DBL)0, signalPeakLevel + loudnessNormalizationGainDb - + outputPeakLevelMax); + adjustment = fMin(adjustment, fMax((FIXP_DBL)0, loudnessDeviationMax)); + } + + pData->loudnessNormalizationGainDbAdjusted = fMin( + loudnessNormalizationGainDb - adjustment, loudnessNormalizationGainDbMax); + pData->outputLoudness = loudness + pData->loudnessNormalizationGainDbAdjusted; + pData->outputPeakLevel = + signalPeakLevel + pData->loudnessNormalizationGainDbAdjusted; + + /* shift back to e = 7 using saturation */ + pData->loudnessNormalizationGainDbAdjusted = SATURATE_LEFT_SHIFT( + pData->loudnessNormalizationGainDbAdjusted, 1, DFRACT_BITS); + pData->outputLoudness = + SATURATE_LEFT_SHIFT(pData->outputLoudness, 1, DFRACT_BITS); + pData->outputPeakLevel = + SATURATE_LEFT_SHIFT(pData->outputPeakLevel, 1, DFRACT_BITS); +} + +static int _targetLoudnessInRange( + DRC_INSTRUCTIONS_UNI_DRC* pDrcInstructionUniDrc, FIXP_DBL targetLoudness) { + int retVal = 0; + + FIXP_DBL drcSetTargetLoudnessValueUpper = + ((FIXP_DBL)pDrcInstructionUniDrc->drcSetTargetLoudnessValueUpper) + << (DFRACT_BITS - 1 - 7); + FIXP_DBL drcSetTargetLoudnessValueLower = + ((FIXP_DBL)pDrcInstructionUniDrc->drcSetTargetLoudnessValueLower) + << (DFRACT_BITS - 1 - 7); + + if (pDrcInstructionUniDrc->drcSetTargetLoudnessPresent && + drcSetTargetLoudnessValueUpper >= targetLoudness && + drcSetTargetLoudnessValueLower < targetLoudness) { + retVal = 1; + } + + return retVal; +} + +/* #8: The range of the target loudness specified for a DRC set has to include + * the requested decoder target loudness. */ +static DRCDEC_SELECTION_PROCESS_RETURN _preSelectionRequirement8( + SEL_PROC_INPUT* hSelProcInput, int downmixIdIndex, + HANDLE_UNI_DRC_CONFIG hUniDrcConfig, + HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, + DRC_INSTRUCTIONS_UNI_DRC* pDrcInstructionUniDrc, + DRCDEC_SELECTION* pCandidatesPotential, + DRCDEC_SELECTION* pCandidatesSelected, SEL_PROC_CODEC_MODE codecMode) { + DRCDEC_SELECTION_PROCESS_RETURN retVal = DRCDEC_SELECTION_PROCESS_NO_ERROR; + int explicitPeakInformationPresent; + FIXP_DBL signalPeakLevel; + int addToCandidate = 0; + + FIXP_DBL loudnessNormalizationGainDb; + FIXP_DBL loudness; + + FIXP_DBL loudnessDeviationMax = + ((FIXP_DBL)hSelProcInput->loudnessDeviationMax) << (DFRACT_BITS - 1 - 7); + ; + + if (hSelProcInput->loudnessNormalizationOn) { + retVal = _getLoudness(hLoudnessInfoSet, hSelProcInput->albumMode, + hSelProcInput->loudnessMeasurementMethod, + hSelProcInput->loudnessMeasurementSystem, + hSelProcInput->targetLoudness, + pDrcInstructionUniDrc->drcSetId, + hSelProcInput->downmixIdRequested[downmixIdIndex], + &loudnessNormalizationGainDb, &loudness); + if (retVal) return (retVal); + } else { + loudnessNormalizationGainDb = (FIXP_DBL)0; + loudness = UNDEFINED_LOUDNESS_VALUE; + } + + retVal = _getSignalPeakLevel( + hSelProcInput, hUniDrcConfig, hLoudnessInfoSet, pDrcInstructionUniDrc, + hSelProcInput->downmixIdRequested[downmixIdIndex], + &explicitPeakInformationPresent, &signalPeakLevel, codecMode + + ); + if (retVal) return (retVal); + + if (hSelProcInput->dynamicRangeControlOn) { + if (explicitPeakInformationPresent == 0) { + if (pDrcInstructionUniDrc->drcSetTargetLoudnessPresent && + ((hSelProcInput->loudnessNormalizationOn && + _targetLoudnessInRange(pDrcInstructionUniDrc, + hSelProcInput->targetLoudness)) || + !hSelProcInput->loudnessNormalizationOn)) { + DRCDEC_SELECTION_DATA* pData = + _drcdec_selection_addNew(pCandidatesSelected); + if (pData == NULL) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + _setSelectionDataInfo(pData, loudness, loudnessNormalizationGainDb, + hSelProcInput->loudnessNormalizationGainDbMax, + loudnessDeviationMax, signalPeakLevel, + hSelProcInput->outputPeakLevelMax, 0); + pData->downmixIdRequestIndex = downmixIdIndex; + pData->pInst = pDrcInstructionUniDrc; + pData->selectionFlag = + 1; /* signal pre-selection step dealing with drcSetTargetLoudness */ + + if (hSelProcInput->loudnessNormalizationOn) { + pData->outputPeakLevel = + hSelProcInput->targetLoudness - + (((FIXP_DBL)pData->pInst->drcSetTargetLoudnessValueUpper) + << (DFRACT_BITS - 1 - 7)); + } else { + pData->outputPeakLevel = (FIXP_DBL)0; + } + } else { + if ((!hSelProcInput->loudnessNormalizationOn) || + (!pDrcInstructionUniDrc->drcSetTargetLoudnessPresent) || + (hSelProcInput->loudnessNormalizationOn && + _targetLoudnessInRange(pDrcInstructionUniDrc, + hSelProcInput->targetLoudness))) { + addToCandidate = 1; + } + } + } else { + addToCandidate = 1; + } + + if (addToCandidate) { + DRCDEC_SELECTION_DATA* pData = + _drcdec_selection_addNew(pCandidatesPotential); + if (pData == NULL) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + _setSelectionDataInfo(pData, loudness, loudnessNormalizationGainDb, + hSelProcInput->loudnessNormalizationGainDbMax, + loudnessDeviationMax, signalPeakLevel, + hSelProcInput->outputPeakLevelMax, 0); + pData->downmixIdRequestIndex = downmixIdIndex; + pData->pInst = pDrcInstructionUniDrc; + pData->selectionFlag = 0; + } + } else { + if (pDrcInstructionUniDrc->drcSetId < 0) { + DRCDEC_SELECTION_DATA* pData = + _drcdec_selection_addNew(pCandidatesSelected); + if (pData == NULL) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + _setSelectionDataInfo(pData, loudness, loudnessNormalizationGainDb, + hSelProcInput->loudnessNormalizationGainDbMax, + loudnessDeviationMax, signalPeakLevel, + hSelProcInput->outputPeakLevelMax, 1); + + pData->downmixIdRequestIndex = downmixIdIndex; + pData->pInst = pDrcInstructionUniDrc; + pData->selectionFlag = 0; + } + } + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +/* #9: Clipping is minimized. */ +static DRCDEC_SELECTION_PROCESS_RETURN _preSelectionRequirement9( + SEL_PROC_INPUT* hSelProcInput, DRCDEC_SELECTION* pCandidatesPotential, + DRCDEC_SELECTION* pCandidatesSelected) { + int i; + + for (i = 0; i < _drcdec_selection_getNumber(pCandidatesPotential); i++) { + DRCDEC_SELECTION_DATA* pCandidate = + _drcdec_selection_getAt(pCandidatesPotential, i); + if (pCandidate == NULL) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + if (pCandidate->outputPeakLevel <= hSelProcInput->outputPeakLevelMax) { + if (_drcdec_selection_add(pCandidatesSelected, pCandidate) == NULL) + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + } + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _drcSetPreSelectionSingleInstruction( + SEL_PROC_INPUT* hSelProcInput, int downmixIdIndex, + HANDLE_UNI_DRC_CONFIG hUniDrcConfig, + HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, + DRC_INSTRUCTIONS_UNI_DRC* pDrcInstructionUniDrc, + DRCDEC_SELECTION* pCandidatesPotential, + DRCDEC_SELECTION* pCandidatesSelected, SEL_PROC_CODEC_MODE codecMode) { + DRCDEC_SELECTION_PROCESS_RETURN retVal = DRCDEC_SELECTION_PROCESS_NO_ERROR; + int matchFound = 0; + DRC_COEFFICIENTS_UNI_DRC* pCoef = + selectDrcCoefficients(hUniDrcConfig, LOCATION_SELECTED); + + retVal = _preSelectionRequirement123( + hSelProcInput->downmixIdRequested[downmixIdIndex], pDrcInstructionUniDrc, + &matchFound); + + if (!retVal && matchFound) + retVal = _preSelectionRequirement4(pDrcInstructionUniDrc, + hSelProcInput->dynamicRangeControlOn, + &matchFound); + + if (!retVal && matchFound) + retVal = + _preSelectionRequirement5(pDrcInstructionUniDrc, pCoef, &matchFound); + + if (!retVal && matchFound) + retVal = _preSelectionRequirement6(pDrcInstructionUniDrc, &matchFound); + + if (!retVal && matchFound) + retVal = _preSelectionRequirement7(pDrcInstructionUniDrc, &matchFound); + + if (!retVal && matchFound) + retVal = _preSelectionRequirement8( + hSelProcInput, downmixIdIndex, hUniDrcConfig, hLoudnessInfoSet, + pDrcInstructionUniDrc, pCandidatesPotential, pCandidatesSelected, + codecMode); + + return retVal; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _drcSetSelectionAddCandidates( + SEL_PROC_INPUT* hSelProcInput, DRCDEC_SELECTION* pCandidatesPotential, + DRCDEC_SELECTION* pCandidatesSelected) { + DRCDEC_SELECTION_PROCESS_RETURN retVal = DRCDEC_SELECTION_PROCESS_NO_ERROR; + int nHitCount = 0; + int i; + + DRCDEC_SELECTION_DATA* pCandidate = NULL; + DRC_INSTRUCTIONS_UNI_DRC* pDrcInstructionUniDrc = NULL; + + for (i = 0; i < _drcdec_selection_getNumber(pCandidatesPotential); i++) { + pCandidate = _drcdec_selection_getAt(pCandidatesPotential, i); + if (pCandidate == NULL) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + pDrcInstructionUniDrc = pCandidate->pInst; + + if (_targetLoudnessInRange(pDrcInstructionUniDrc, + hSelProcInput->targetLoudness)) { + nHitCount++; + } + } + + if (nHitCount != 0) { + for (i = 0; i < _drcdec_selection_getNumber(pCandidatesPotential); i++) { + pCandidate = _drcdec_selection_getAt(pCandidatesPotential, i); + if (pCandidate == NULL) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + pDrcInstructionUniDrc = pCandidate->pInst; + + if (_targetLoudnessInRange(pDrcInstructionUniDrc, + hSelProcInput->targetLoudness)) { + if (_drcdec_selection_add(pCandidatesSelected, pCandidate) == NULL) + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + } + } else { + FIXP_DBL lowestPeakLevel = MAXVAL_DBL; /* e = 7 */ + FIXP_DBL peakLevel = 0; /* e = 7 */ + + for (i = 0; i < _drcdec_selection_getNumber(pCandidatesPotential); i++) { + pCandidate = _drcdec_selection_getAt(pCandidatesPotential, i); + if (pCandidate == NULL) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + peakLevel = pCandidate->outputPeakLevel; + + if (peakLevel < lowestPeakLevel) { + lowestPeakLevel = peakLevel; + } + } + + /* add all with lowest peak level or max 1dB above */ + for (i = 0; i < _drcdec_selection_getNumber(pCandidatesPotential); i++) { + FIXP_DBL loudnessDeviationMax = + ((FIXP_DBL)hSelProcInput->loudnessDeviationMax) + << (DFRACT_BITS - 1 - 7); /* e = 7 */ + + pCandidate = _drcdec_selection_getAt(pCandidatesPotential, i); + if (pCandidate == NULL) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + peakLevel = pCandidate->outputPeakLevel; + + if (peakLevel == lowestPeakLevel || + peakLevel <= + lowestPeakLevel + FL2FXCONST_DBL(1.0f / (float)(1 << 7))) { + FIXP_DBL adjustment = + fMax((FIXP_DBL)0, peakLevel - hSelProcInput->outputPeakLevelMax); + adjustment = fMin(adjustment, fMax((FIXP_DBL)0, loudnessDeviationMax)); + + pCandidate->loudnessNormalizationGainDbAdjusted -= adjustment; + pCandidate->outputPeakLevel -= adjustment; + pCandidate->outputLoudness -= adjustment; + if (_drcdec_selection_add(pCandidatesSelected, pCandidate) == NULL) + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + } + } + + return retVal; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _dependentDrcInstruction( + HANDLE_UNI_DRC_CONFIG hUniDrcConfig, DRC_INSTRUCTIONS_UNI_DRC* pInst, + DRC_INSTRUCTIONS_UNI_DRC** ppDrcInstructionsDependent) { + int i; + DRC_INSTRUCTIONS_UNI_DRC* pDependentDrc = NULL; + + for (i = 0; i < hUniDrcConfig->drcInstructionsUniDrcCount; i++) { + pDependentDrc = + (DRC_INSTRUCTIONS_UNI_DRC*)&(hUniDrcConfig->drcInstructionsUniDrc[i]); + + if (pDependentDrc->drcSetId == pInst->dependsOnDrcSet) { + break; + } + } + + if (i == hUniDrcConfig->drcInstructionsUniDrcCount) { + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + + if (pDependentDrc->dependsOnDrcSetPresent == 1) { + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + + *ppDrcInstructionsDependent = pDependentDrc; + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _selectDrcSetEffectNone( + HANDLE_UNI_DRC_CONFIG hUniDrcConfig, DRCDEC_SELECTION* pCandidatesPotential, + DRCDEC_SELECTION* pCandidatesSelected) { + int i; + + for (i = 0; i < _drcdec_selection_getNumber(pCandidatesPotential); i++) { + DRCDEC_SELECTION_DATA* pCandidate = + _drcdec_selection_getAt(pCandidatesPotential, i); + if (pCandidate == NULL) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + if ((pCandidate->pInst->drcSetEffect & 0xff) == 0) { + if (_drcdec_selection_add(pCandidatesSelected, pCandidate) == NULL) + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + } + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _selectSingleEffectType( + HANDLE_UNI_DRC_CONFIG hUniDrcConfig, DRC_EFFECT_TYPE_REQUEST effectType, + DRCDEC_SELECTION* pCandidatesPotential, + DRCDEC_SELECTION* pCandidatesSelected) { + int i; + DRCDEC_SELECTION_PROCESS_RETURN retVal = DRCDEC_SELECTION_PROCESS_NO_ERROR; + DRC_INSTRUCTIONS_UNI_DRC* pInst; + DRC_INSTRUCTIONS_UNI_DRC* pDrcInstructionsDependent; + + if (effectType == DETR_NONE) { + retVal = _selectDrcSetEffectNone(hUniDrcConfig, pCandidatesPotential, + pCandidatesSelected); + if (retVal) return (retVal); + } else { + int effectBitPosition = 1 << (effectType - 1); + + for (i = 0; i < _drcdec_selection_getNumber(pCandidatesPotential); i++) { + DRCDEC_SELECTION_DATA* pCandidate = + _drcdec_selection_getAt(pCandidatesPotential, i); + if (pCandidate == NULL) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + pInst = pCandidate->pInst; + + if (!pInst->dependsOnDrcSetPresent) { + if ((pInst->drcSetEffect & effectBitPosition)) { + if (_drcdec_selection_add(pCandidatesSelected, pCandidate) == NULL) + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + } else { + retVal = _dependentDrcInstruction(hUniDrcConfig, pInst, + &pDrcInstructionsDependent); + if (retVal) return (retVal); + + if (((pInst->drcSetEffect & effectBitPosition)) || + ((pDrcInstructionsDependent->drcSetEffect & effectBitPosition))) { + if (_drcdec_selection_add(pCandidatesSelected, pCandidate) == NULL) + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + } + } + } + + return retVal; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _selectEffectTypeFeature( + HANDLE_UNI_DRC_CONFIG hUniDrcConfig, DRC_FEATURE_REQUEST drcFeatureRequest, + DRCDEC_SELECTION** ppCandidatesPotential, + DRCDEC_SELECTION** ppCandidatesSelected) { + DRCDEC_SELECTION_PROCESS_RETURN retVal = DRCDEC_SELECTION_PROCESS_NO_ERROR; + int i; + int desiredEffectTypeFound = 0; + + for (i = 0; i < drcFeatureRequest.drcEffectType.numRequestsDesired; i++) { + retVal = _selectSingleEffectType( + hUniDrcConfig, drcFeatureRequest.drcEffectType.request[i], + *ppCandidatesPotential, *ppCandidatesSelected); + if (retVal) return (retVal); + + if (_drcdec_selection_getNumber(*ppCandidatesSelected)) { + desiredEffectTypeFound = 1; + _swapSelectionAndClear(ppCandidatesPotential, ppCandidatesSelected); + } + } + + if (!desiredEffectTypeFound) { + for (i = drcFeatureRequest.drcEffectType.numRequestsDesired; + i < drcFeatureRequest.drcEffectType.numRequests; i++) { + retVal = _selectSingleEffectType( + hUniDrcConfig, drcFeatureRequest.drcEffectType.request[i], + *ppCandidatesPotential, *ppCandidatesSelected); + if (retVal) return (retVal); + + if (_drcdec_selection_getNumber(*ppCandidatesSelected)) { + _swapSelectionAndClear(ppCandidatesPotential, ppCandidatesSelected); + break; + } + } + } + + _swapSelection(ppCandidatesPotential, ppCandidatesSelected); + + return retVal; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _selectDynamicRange( + HANDLE_UNI_DRC_CONFIG hUniDrcConfig, + HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, + DRC_FEATURE_REQUEST drcFeatureRequest, UCHAR* pDownmixIdRequested, + int albumMode, DRCDEC_SELECTION* pCandidatesPotential, + DRCDEC_SELECTION* ppCandidatesSelected) { + DRCDEC_SELECTION_PROCESS_RETURN retVal = DRCDEC_SELECTION_PROCESS_NO_ERROR; + int i; + int peakToAveragePresent; + FIXP_DBL peakToAverage; + + FIXP_DBL minVal = MAXVAL_DBL; + FIXP_DBL val = 0; + + int numSelectedCandidates = _drcdec_selection_getNumber(ppCandidatesSelected); + + for (i = 0; i < _drcdec_selection_getNumber(pCandidatesPotential); i++) { + DRCDEC_SELECTION_DATA* pCandidate = + _drcdec_selection_getAt(pCandidatesPotential, i); + if (pCandidate == NULL) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + retVal = _dynamicRangeMeasurement( + hLoudnessInfoSet, pCandidate->pInst, + pDownmixIdRequested[pCandidate->downmixIdRequestIndex], + drcFeatureRequest.dynamicRange.measurementRequestType, albumMode, + &peakToAveragePresent, &peakToAverage); + if (retVal) return (retVal); + + if (peakToAveragePresent) { + if (!drcFeatureRequest.dynamicRange.requestedIsRange) { + val = fAbs(drcFeatureRequest.dynamicRange.requestValue - peakToAverage); + + if (minVal > val) { + minVal = val; + + _drcdec_selection_setNumber(ppCandidatesSelected, + numSelectedCandidates); + } + if (_drcdec_selection_add(ppCandidatesSelected, pCandidate) == NULL) + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } else { + if ((peakToAverage >= drcFeatureRequest.dynamicRange.requestValueMin) && + (peakToAverage <= drcFeatureRequest.dynamicRange.requestValueMax)) { + if (_drcdec_selection_add(ppCandidatesSelected, pCandidate) == NULL) + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + } + } + } + + return retVal; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _selectSingleDrcCharacteristic( + HANDLE_UNI_DRC_CONFIG hUniDrcConfig, int requestedDrcCharacteristic, + DRCDEC_SELECTION** ppCandidatesPotential, + DRCDEC_SELECTION** ppCandidatesSelected) { + int i, j, b; + int hit = 0; + + DRC_INSTRUCTIONS_UNI_DRC* pInst = NULL; + DRC_COEFFICIENTS_UNI_DRC* pCoef = NULL; + GAIN_SET* pGainSet = NULL; + + if (requestedDrcCharacteristic < 1) { + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + + pCoef = selectDrcCoefficients(hUniDrcConfig, LOCATION_SELECTED); + + if (pCoef == NULL) /* check for parametricDRC */ + { + return DRCDEC_SELECTION_PROCESS_NO_ERROR; + } + + for (i = 0; i < _drcdec_selection_getNumber(*ppCandidatesPotential); i++) { + DRCDEC_SELECTION_DATA* pCandidate = + _drcdec_selection_getAt(*ppCandidatesPotential, i); + if (pCandidate == NULL) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + pInst = pCandidate->pInst; + + hit = 0; + + for (j = 0; j < pInst->nDrcChannelGroups; j++) { + int bandCount = 0; + int indexDrcCoeff = pInst->gainSetIndexForChannelGroup[j]; + + if (indexDrcCoeff > pCoef->gainSetCount - 1) /* check for parametricDRC */ + { + return DRCDEC_SELECTION_PROCESS_NO_ERROR; + } + + pGainSet = &(pCoef->gainSet[indexDrcCoeff]); + bandCount = pGainSet->bandCount; + + for (b = 0; b < bandCount; b++) { + if ((pGainSet->drcCharacteristic[b].isCICP) && + (pGainSet->drcCharacteristic[b].cicpIndex == + requestedDrcCharacteristic)) { + hit = 1; + break; + } + } + + if (hit) break; + } + + if (hit) { + if (_drcdec_selection_add(*ppCandidatesSelected, pCandidate) == NULL) + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + } + + if (_drcdec_selection_getNumber(*ppCandidatesSelected)) { + _swapSelectionAndClear(ppCandidatesPotential, ppCandidatesSelected); + } + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _selectDrcCharacteristic( + HANDLE_UNI_DRC_CONFIG hUniDrcConfig, int drcCharacteristicRequested, + DRCDEC_SELECTION** ppCandidatesPotential, + DRCDEC_SELECTION** ppCandidatesSelected) { + DRCDEC_SELECTION_PROCESS_RETURN retVal = DRCDEC_SELECTION_PROCESS_NO_ERROR; + + const int secondTry[12] = {0, 2, 3, 4, 5, 6, 5, 9, 10, 7, 8, 10}; + + retVal = _selectSingleDrcCharacteristic( + hUniDrcConfig, drcCharacteristicRequested, ppCandidatesPotential, + ppCandidatesSelected); + if (retVal) return (retVal); + + if ((drcCharacteristicRequested <= 11) && + (_drcdec_selection_getNumber(*ppCandidatesSelected) == 0)) { + retVal = _selectSingleDrcCharacteristic( + hUniDrcConfig, secondTry[drcCharacteristicRequested], + ppCandidatesPotential, ppCandidatesSelected); + if (retVal) return (retVal); + } + + if (_drcdec_selection_getNumber(*ppCandidatesSelected) == 0) { + if ((drcCharacteristicRequested >= 2) && + (drcCharacteristicRequested <= 5)) { + retVal = _selectSingleDrcCharacteristic( + hUniDrcConfig, drcCharacteristicRequested - 1, ppCandidatesPotential, + ppCandidatesSelected); + if (retVal) return (retVal); + } else if (drcCharacteristicRequested == 11) { + retVal = _selectSingleDrcCharacteristic( + hUniDrcConfig, 9, ppCandidatesPotential, ppCandidatesSelected); + if (retVal) return (retVal); + } + } + + _swapSelection(ppCandidatesPotential, ppCandidatesSelected); + + return retVal; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _drcSetFinalSelection_peakValue0( + DRCDEC_SELECTION* pCandidatesPotential, + DRCDEC_SELECTION* pCandidatesSelected) { + int i; + + for (i = 0; i < _drcdec_selection_getNumber(pCandidatesPotential); i++) { + DRCDEC_SELECTION_DATA* pCandidate = + _drcdec_selection_getAt(pCandidatesPotential, i); + if (pCandidate == NULL) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + if (pCandidate->outputPeakLevel <= FIXP_DBL(0)) { + if (_drcdec_selection_add(pCandidatesSelected, pCandidate) == NULL) + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + } + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _drcSetFinalSelection_downmixId( + HANDLE_SEL_PROC_INPUT hSelProcInput, + DRCDEC_SELECTION** ppCandidatesPotential, + DRCDEC_SELECTION** ppCandidatesSelected) { + int i, j; + DRCDEC_SELECTION_DATA* pCandidate = NULL; + DRC_INSTRUCTIONS_UNI_DRC* pInst = NULL; + + for (i = 0; i < _drcdec_selection_getNumber(*ppCandidatesPotential); i++) { + pCandidate = _drcdec_selection_getAt(*ppCandidatesPotential, i); + if (pCandidate == NULL) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + pInst = pCandidate->pInst; + + for (j = 0; j < pInst->downmixIdCount; j++) { + if (DOWNMIX_ID_BASE_LAYOUT != pInst->downmixId[j] && + DOWNMIX_ID_ANY_DOWNMIX != pInst->downmixId[j] && + hSelProcInput + ->downmixIdRequested[pCandidate->downmixIdRequestIndex] == + pInst->downmixId[j]) { + if (_drcdec_selection_add(*ppCandidatesSelected, pCandidate) == NULL) + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + } + } + + if (_drcdec_selection_getNumber(*ppCandidatesSelected) == 0) { + _swapSelection(ppCandidatesPotential, ppCandidatesSelected); + } + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +static int _crossSum(int value) { + int sum = 0; + + while (value != 0) { + if ((value & 1) == 1) { + sum++; + } + + value >>= 1; + } + + return sum; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _drcSetFinalSelection_effectTypes( + DRCDEC_SELECTION* pCandidatesPotential, + DRCDEC_SELECTION* pCandidatesSelected) { + int i; + int minNumEffects = 1000; + int numEffects = 0; + int effects = 0; + DRCDEC_SELECTION_DATA* pCandidate = NULL; + DRC_INSTRUCTIONS_UNI_DRC* pInst = NULL; + + for (i = 0; i < _drcdec_selection_getNumber(pCandidatesPotential); i++) { + pCandidate = _drcdec_selection_getAt(pCandidatesPotential, i); + if (pCandidate == NULL) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + pInst = pCandidate->pInst; + + effects = pInst->drcSetEffect; + effects &= 0xffff ^ (EB_GENERAL_COMPR); + numEffects = _crossSum(effects); + + if (numEffects < minNumEffects) { + minNumEffects = numEffects; + } + } + + /* add all with minimum number of effects */ + for (i = 0; i < _drcdec_selection_getNumber(pCandidatesPotential); i++) { + pCandidate = _drcdec_selection_getAt(pCandidatesPotential, i); + if (pCandidate == NULL) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + pInst = pCandidate->pInst; + + effects = pInst->drcSetEffect; + effects &= 0xffff ^ (EB_GENERAL_COMPR); + numEffects = _crossSum(effects); + + if (numEffects == minNumEffects) { + if (_drcdec_selection_add(pCandidatesSelected, pCandidate) == NULL) + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + } + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _selectSmallestTargetLoudnessValueUpper( + DRCDEC_SELECTION* pCandidatesPotential, + DRCDEC_SELECTION* pCandidatesSelected) { + int i; + SCHAR minVal = 0x7F; + SCHAR val = 0; + DRCDEC_SELECTION_DATA* pCandidate = NULL; + + for (i = 0; i < _drcdec_selection_getNumber(pCandidatesPotential); i++) { + pCandidate = _drcdec_selection_getAt(pCandidatesPotential, i); + if (pCandidate == NULL) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + val = pCandidate->pInst->drcSetTargetLoudnessValueUpper; + + if (val < minVal) { + minVal = val; + } + } + + /* add all with same smallest drcSetTargetLoudnessValueUpper */ + for (i = 0; i < _drcdec_selection_getNumber(pCandidatesPotential); i++) { + pCandidate = _drcdec_selection_getAt(pCandidatesPotential, i); + if (pCandidate == NULL) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + val = pCandidate->pInst->drcSetTargetLoudnessValueUpper; + + if (val == minVal) { + if (_drcdec_selection_add(pCandidatesSelected, pCandidate) == NULL) + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + } + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _drcSetFinalSelection_targetLoudness( + FIXP_DBL targetLoudness, DRCDEC_SELECTION* pCandidatesPotential, + DRCDEC_SELECTION* pCandidatesSelected) { + DRCDEC_SELECTION_PROCESS_RETURN retVal = DRCDEC_SELECTION_PROCESS_NO_ERROR; + int i; + DRCDEC_SELECTION_DATA* pCandidate = NULL; + + for (i = 0; i < _drcdec_selection_getNumber(pCandidatesPotential); i++) { + pCandidate = _drcdec_selection_getAt(pCandidatesPotential, i); + if (pCandidate == NULL) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + if (pCandidate->selectionFlag == 0) { + if (_drcdec_selection_add(pCandidatesSelected, pCandidate) == NULL) + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + } + + if (_drcdec_selection_getNumber(pCandidatesSelected) == 0) { + retVal = _selectSmallestTargetLoudnessValueUpper(pCandidatesPotential, + pCandidatesSelected); + if (retVal) return (retVal); + } + + if (_drcdec_selection_getNumber(pCandidatesSelected) > 1) { + DRC_INSTRUCTIONS_UNI_DRC* pDrcInstructionUniDrc = NULL; + + _swapSelectionAndClear(&pCandidatesPotential, &pCandidatesSelected); + + for (i = 0; i < _drcdec_selection_getNumber(pCandidatesPotential); i++) { + pCandidate = _drcdec_selection_getAt(pCandidatesPotential, i); + if (pCandidate == NULL) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + pDrcInstructionUniDrc = pCandidate->pInst; + + if (_targetLoudnessInRange(pDrcInstructionUniDrc, targetLoudness)) { + if (_drcdec_selection_add(pCandidatesSelected, pCandidate) == NULL) + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + } + + if (_drcdec_selection_getNumber(pCandidatesSelected) > 1) { + _swapSelectionAndClear(&pCandidatesPotential, &pCandidatesSelected); + + retVal = _selectSmallestTargetLoudnessValueUpper(pCandidatesPotential, + pCandidatesSelected); + if (retVal) return (retVal); + } + } + + return retVal; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _drcSetFinalSelection_peakValueLargest( + DRCDEC_SELECTION* pCandidatesPotential, + DRCDEC_SELECTION* pCandidatesSelected) { + int i; + FIXP_DBL largestPeakLevel = MINVAL_DBL; + FIXP_DBL peakLevel = 0; + DRCDEC_SELECTION_DATA* pCandidate = NULL; + + for (i = 0; i < _drcdec_selection_getNumber(pCandidatesPotential); i++) { + pCandidate = _drcdec_selection_getAt(pCandidatesPotential, i); + if (pCandidate == NULL) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + peakLevel = pCandidate->outputPeakLevel; + + if (peakLevel > largestPeakLevel) { + largestPeakLevel = peakLevel; + } + } + + /* add all with same largest peak level */ + for (i = 0; i < _drcdec_selection_getNumber(pCandidatesPotential); i++) { + pCandidate = _drcdec_selection_getAt(pCandidatesPotential, i); + if (pCandidate == NULL) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + peakLevel = pCandidate->outputPeakLevel; + + if (peakLevel == largestPeakLevel) { + if (_drcdec_selection_add(pCandidatesSelected, pCandidate) == NULL) + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + } + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _drcSetFinalSelection_drcSetId( + DRCDEC_SELECTION* pCandidatesPotential, + DRCDEC_SELECTION* pCandidatesSelected) { + int i; + int largestId = -1000; + int id = 0; + DRCDEC_SELECTION_DATA* pCandidate = NULL; + DRCDEC_SELECTION_DATA* pCandidateSelected = NULL; + + for (i = 0; i < _drcdec_selection_getNumber(pCandidatesPotential); i++) { + pCandidate = _drcdec_selection_getAt(pCandidatesPotential, i); + if (pCandidate == NULL) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + id = pCandidate->pInst->drcSetId; + + if (id > largestId) { + largestId = id; + pCandidateSelected = pCandidate; + } + } + + if (pCandidateSelected != NULL) { + if (_drcdec_selection_add(pCandidatesSelected, pCandidateSelected) == NULL) + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } else { + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _drcSetFinalSelection( + HANDLE_SEL_PROC_INPUT hSelProcInput, HANDLE_UNI_DRC_CONFIG hUniDrcConfig, + DRCDEC_SELECTION** ppCandidatesPotential, + DRCDEC_SELECTION** ppCandidatesSelected, SEL_PROC_CODEC_MODE codecMode) { + DRCDEC_SELECTION_PROCESS_RETURN retVal = DRCDEC_SELECTION_PROCESS_NO_ERROR; + + if (_drcdec_selection_getNumber(*ppCandidatesPotential) == 0) { + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } else if (_drcdec_selection_getNumber(*ppCandidatesPotential) == 1) { + _swapSelection(ppCandidatesPotential, ppCandidatesSelected); + /* finished */ + } else /* > 1 */ + { + retVal = _drcSetFinalSelection_peakValue0(*ppCandidatesPotential, + *ppCandidatesSelected); + if (retVal) return (retVal); + + if (_drcdec_selection_getNumber(*ppCandidatesSelected) > 1) { + _swapSelectionAndClear(ppCandidatesPotential, ppCandidatesSelected); + retVal = _drcSetFinalSelection_downmixId( + hSelProcInput, ppCandidatesPotential, ppCandidatesSelected); + if (retVal) return (retVal); + } + + if (_drcdec_selection_getNumber(*ppCandidatesSelected) > 1) { + _swapSelectionAndClear(ppCandidatesPotential, ppCandidatesSelected); + retVal = _drcSetFinalSelection_effectTypes(*ppCandidatesPotential, + *ppCandidatesSelected); + if (retVal) return (retVal); + } + + if (_drcdec_selection_getNumber(*ppCandidatesSelected) > 1) { + _swapSelectionAndClear(ppCandidatesPotential, ppCandidatesSelected); + retVal = _drcSetFinalSelection_targetLoudness( + hSelProcInput->targetLoudness, *ppCandidatesPotential, + *ppCandidatesSelected); + if (retVal) return (retVal); + } + + if (_drcdec_selection_getNumber(*ppCandidatesSelected) > 1) { + _swapSelectionAndClear(ppCandidatesPotential, ppCandidatesSelected); + retVal = _drcSetFinalSelection_peakValueLargest(*ppCandidatesPotential, + *ppCandidatesSelected); + if (retVal) return (retVal); + } + + if (_drcdec_selection_getNumber(*ppCandidatesSelected) > 1) { + _swapSelectionAndClear(ppCandidatesPotential, ppCandidatesSelected); + retVal = _drcSetFinalSelection_drcSetId(*ppCandidatesPotential, + *ppCandidatesSelected); + if (retVal) return (retVal); + } + } + + if (_drcdec_selection_getNumber(*ppCandidatesSelected) == 0) { + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + + return retVal; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _generateVirtualDrcSets( + HANDLE_SEL_PROC_INPUT hSelProcInput, HANDLE_UNI_DRC_CONFIG hUniDrcConfig, + SEL_PROC_CODEC_MODE codecMode) { + int i; + int nMixes = hUniDrcConfig->downmixInstructionsCount + 1; + int index = hUniDrcConfig->drcInstructionsUniDrcCount; + int indexVirtual = -1; + DRC_INSTRUCTIONS_UNI_DRC* pDrcInstruction = + &(hUniDrcConfig->drcInstructionsUniDrc[index]); + + if (codecMode == SEL_PROC_MPEG_H_3DA) { + nMixes = 1; + } + + if ((index + nMixes) > (12 + 1 + 6)) { + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + + FDKmemset(pDrcInstruction, 0, sizeof(DRC_INSTRUCTIONS_UNI_DRC)); + + pDrcInstruction->drcSetId = indexVirtual; + index++; + indexVirtual--; + pDrcInstruction->downmixIdCount = 1; + + if ((codecMode == SEL_PROC_MPEG_H_3DA) && + (hSelProcInput->numDownmixIdRequests)) { + pDrcInstruction->downmixId[0] = hSelProcInput->downmixIdRequested[0]; + } else { + pDrcInstruction->downmixId[0] = DOWNMIX_ID_BASE_LAYOUT; + } + + for (i = 1; i < nMixes; i++) { + pDrcInstruction = &(hUniDrcConfig->drcInstructionsUniDrc[index]); + FDKmemset(pDrcInstruction, 0, sizeof(DRC_INSTRUCTIONS_UNI_DRC)); + pDrcInstruction->drcSetId = indexVirtual; + pDrcInstruction->downmixId[0] = + hUniDrcConfig->downmixInstructions[i - 1].downmixId; + pDrcInstruction->downmixIdCount = 1; + index++; + indexVirtual--; + } + + hUniDrcConfig->drcInstructionsCountInclVirtual = + hUniDrcConfig->drcInstructionsUniDrcCount + nMixes; + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _generateOutputInfo( + HANDLE_SEL_PROC_INPUT hSelProcInput, HANDLE_SEL_PROC_OUTPUT hSelProcOutput, + HANDLE_UNI_DRC_CONFIG hUniDrcConfig, + HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, + DRCDEC_SELECTION_DATA* pSelectionData, SEL_PROC_CODEC_MODE codecMode) { + DRCDEC_SELECTION_PROCESS_RETURN retVal = DRCDEC_SELECTION_PROCESS_NO_ERROR; + + int i, j; + int hasDependend = 0; + int hasFading = 0; + int hasDucking = 0; + int selectedDrcSetIds; + int selectedDownmixIds; + FIXP_DBL mixingLevel = 0; + int albumMode = hSelProcInput->albumMode; + UCHAR* pDownmixIdRequested = hSelProcInput->downmixIdRequested; + FIXP_SGL boost = hSelProcInput->boost; + FIXP_SGL compress = hSelProcInput->compress; + + hSelProcOutput->numSelectedDrcSets = 1; + hSelProcOutput->selectedDrcSetIds[0] = pSelectionData->pInst->drcSetId; + hSelProcOutput->selectedDownmixIds[0] = + pSelectionData->pInst->drcApplyToDownmix == 1 + ? pSelectionData->pInst->downmixId[0] + : 0; + hSelProcOutput->loudnessNormalizationGainDb = + pSelectionData->loudnessNormalizationGainDbAdjusted + + hSelProcInput->loudnessNormalizationGainModificationDb; + hSelProcOutput->outputPeakLevelDb = pSelectionData->outputPeakLevel; + + hSelProcOutput->boost = boost; + hSelProcOutput->compress = compress; + hSelProcOutput->baseChannelCount = + hUniDrcConfig->channelLayout.baseChannelCount; + hSelProcOutput->targetChannelCount = + hUniDrcConfig->channelLayout.baseChannelCount; + hSelProcOutput->activeDownmixId = + pDownmixIdRequested[pSelectionData->downmixIdRequestIndex]; + + _getMixingLevel(hLoudnessInfoSet, *pDownmixIdRequested, + hSelProcOutput->selectedDrcSetIds[0], albumMode, + &mixingLevel); + hSelProcOutput->mixingLevel = mixingLevel; + + /*dependent*/ + if (pSelectionData->pInst->dependsOnDrcSetPresent) { + int dependsOnDrcSetID = pSelectionData->pInst->dependsOnDrcSet; + + for (i = 0; i < hUniDrcConfig->drcInstructionsCountInclVirtual; i++) { + if (hUniDrcConfig->drcInstructionsUniDrc[i].drcSetId == + dependsOnDrcSetID) { + hSelProcOutput->selectedDrcSetIds[hSelProcOutput->numSelectedDrcSets] = + hUniDrcConfig->drcInstructionsUniDrc[i].drcSetId; + hSelProcOutput->selectedDownmixIds[hSelProcOutput->numSelectedDrcSets] = + hUniDrcConfig->drcInstructionsUniDrc[i].drcApplyToDownmix == 1 + ? hUniDrcConfig->drcInstructionsUniDrc[i].downmixId[0] + : 0; + hSelProcOutput->numSelectedDrcSets++; + hasDependend = 1; + break; + } + } + } + + /* fading */ + if (hSelProcInput->albumMode == 0) { + for (i = 0; i < hUniDrcConfig->drcInstructionsUniDrcCount; i++) { + DRC_INSTRUCTIONS_UNI_DRC* pInst = + &(hUniDrcConfig->drcInstructionsUniDrc[i]); + + if (pInst->drcSetEffect & EB_FADE) { + if (pInst->downmixId[0] == DOWNMIX_ID_ANY_DOWNMIX) { + hSelProcOutput->numSelectedDrcSets = hasDependend + 1; + hSelProcOutput + ->selectedDrcSetIds[hSelProcOutput->numSelectedDrcSets] = + hUniDrcConfig->drcInstructionsUniDrc[i].drcSetId; + hSelProcOutput + ->selectedDownmixIds[hSelProcOutput->numSelectedDrcSets] = + hUniDrcConfig->drcInstructionsUniDrc[i].drcApplyToDownmix == 1 + ? hUniDrcConfig->drcInstructionsUniDrc[i].downmixId[0] + : 0; + hSelProcOutput->numSelectedDrcSets++; + hasFading = 1; + + } else { + retVal = DRCDEC_SELECTION_PROCESS_NOT_OK; + if (retVal) return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + } + } + } + + /* ducking */ + for (i = 0; i < hUniDrcConfig->drcInstructionsUniDrcCount; i++) { + DRC_INSTRUCTIONS_UNI_DRC* pInst = + &(hUniDrcConfig->drcInstructionsUniDrc[i]); + + if (pInst->drcSetEffect & (EB_DUCK_OTHER | EB_DUCK_SELF)) { + for (j = 0; j < pInst->downmixIdCount; j++) { + if (pInst->downmixId[j] == hSelProcOutput->activeDownmixId) { + hSelProcOutput->numSelectedDrcSets = + hasDependend + 1; /* ducking overrides fading */ + + hSelProcOutput + ->selectedDrcSetIds[hSelProcOutput->numSelectedDrcSets] = + hUniDrcConfig->drcInstructionsUniDrc[i].drcSetId; + /* force ducking DRC set to be processed on base layout */ + hSelProcOutput + ->selectedDownmixIds[hSelProcOutput->numSelectedDrcSets] = 0; + hSelProcOutput->numSelectedDrcSets++; + hasDucking = 1; + } + } + } + } + + /* repeat for DOWNMIX_ID_BASE_LAYOUT if no ducking found*/ + + if (!hasDucking) { + for (i = 0; i < hUniDrcConfig->drcInstructionsUniDrcCount; i++) { + DRC_INSTRUCTIONS_UNI_DRC* pInst = + &(hUniDrcConfig->drcInstructionsUniDrc[i]); + + if (pInst->drcSetEffect & (EB_DUCK_OTHER | EB_DUCK_SELF)) { + for (j = 0; j < pInst->downmixIdCount; j++) { + if (pInst->downmixId[j] == DOWNMIX_ID_BASE_LAYOUT) { + hSelProcOutput->numSelectedDrcSets = hasDependend + hasFading + 1; + hSelProcOutput + ->selectedDrcSetIds[hSelProcOutput->numSelectedDrcSets] = + hUniDrcConfig->drcInstructionsUniDrc[i].drcSetId; + /* force ducking DRC set to be processed on base layout */ + hSelProcOutput + ->selectedDownmixIds[hSelProcOutput->numSelectedDrcSets] = 0; + hSelProcOutput->numSelectedDrcSets++; + } + } + } + } + } + + if (hSelProcOutput->numSelectedDrcSets > 3) { + /* maximum permitted number of applied DRC sets is 3, see section 6.3.5 of + * ISO/IEC 23003-4 */ + hSelProcOutput->numSelectedDrcSets = 0; + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + + /* sorting: Ducking/Fading -> Dependent -> Selected */ + if (hSelProcOutput->numSelectedDrcSets == 3) { + selectedDrcSetIds = hSelProcOutput->selectedDrcSetIds[0]; + selectedDownmixIds = hSelProcOutput->selectedDownmixIds[0]; + hSelProcOutput->selectedDrcSetIds[0] = hSelProcOutput->selectedDrcSetIds[2]; + hSelProcOutput->selectedDownmixIds[0] = + hSelProcOutput->selectedDownmixIds[2]; + hSelProcOutput->selectedDrcSetIds[2] = selectedDrcSetIds; + hSelProcOutput->selectedDownmixIds[2] = selectedDownmixIds; + } else if (hSelProcOutput->numSelectedDrcSets == 2) { + selectedDrcSetIds = hSelProcOutput->selectedDrcSetIds[0]; + selectedDownmixIds = hSelProcOutput->selectedDownmixIds[0]; + hSelProcOutput->selectedDrcSetIds[0] = hSelProcOutput->selectedDrcSetIds[1]; + hSelProcOutput->selectedDownmixIds[0] = + hSelProcOutput->selectedDownmixIds[1]; + hSelProcOutput->selectedDrcSetIds[1] = selectedDrcSetIds; + hSelProcOutput->selectedDownmixIds[1] = selectedDownmixIds; + } + + return retVal; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _selectDownmixMatrix( + HANDLE_SEL_PROC_OUTPUT hSelProcOutput, + HANDLE_UNI_DRC_CONFIG hUniDrcConfig) { + int i; + hSelProcOutput->baseChannelCount = + hUniDrcConfig->channelLayout.baseChannelCount; + hSelProcOutput->targetChannelCount = + hUniDrcConfig->channelLayout.baseChannelCount; + hSelProcOutput->targetLayout = -1; + hSelProcOutput->downmixMatrixPresent = 0; + + if (hSelProcOutput->activeDownmixId != 0) { + for (i = 0; i < hUniDrcConfig->downmixInstructionsCount; i++) { + DOWNMIX_INSTRUCTIONS* pDown = &(hUniDrcConfig->downmixInstructions[i]); + + if (hSelProcOutput->activeDownmixId == pDown->downmixId) { + hSelProcOutput->targetChannelCount = pDown->targetChannelCount; + hSelProcOutput->targetLayout = pDown->targetLayout; + + if (pDown->downmixCoefficientsPresent) { + int j, k; + FIXP_DBL downmixOffset = getDownmixOffset( + pDown, hSelProcOutput->baseChannelCount); /* e = 1 */ + + for (j = 0; j < hSelProcOutput->baseChannelCount; j++) { + for (k = 0; k < hSelProcOutput->targetChannelCount; k++) { + hSelProcOutput->downmixMatrix[j][k] = + fMultDiv2( + downmixOffset, + pDown->downmixCoefficient[j + k * hSelProcOutput + ->baseChannelCount]) + << 2; + } + } + + hSelProcOutput->downmixMatrixPresent = 1; + } + break; + } + } + } + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _drcSetPreSelection( + SEL_PROC_INPUT* hSelProcInput, HANDLE_UNI_DRC_CONFIG hUniDrcConfig, + HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, + DRCDEC_SELECTION** ppCandidatesPotential, + DRCDEC_SELECTION** ppCandidatesSelected, SEL_PROC_CODEC_MODE codecMode) { + DRCDEC_SELECTION_PROCESS_RETURN retVal = DRCDEC_SELECTION_PROCESS_NO_ERROR; + int i, j; + + for (i = 0; i < hSelProcInput->numDownmixIdRequests; i++) { + for (j = 0; j < hUniDrcConfig->drcInstructionsCountInclVirtual; j++) { + DRC_INSTRUCTIONS_UNI_DRC* pDrcInstruction = + &(hUniDrcConfig->drcInstructionsUniDrc[j]); + retVal = _drcSetPreSelectionSingleInstruction( + hSelProcInput, i, hUniDrcConfig, hLoudnessInfoSet, pDrcInstruction, + *ppCandidatesPotential, *ppCandidatesSelected, codecMode); + if (retVal) return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + } + + retVal = _preSelectionRequirement9(hSelProcInput, *ppCandidatesPotential, + *ppCandidatesSelected); + if (retVal) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + if (_drcdec_selection_getNumber(*ppCandidatesSelected) == 0) { + retVal = _drcSetSelectionAddCandidates( + hSelProcInput, *ppCandidatesPotential, *ppCandidatesSelected); + if (retVal) return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + + return retVal; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _drcSetRequestSelection( + SEL_PROC_INPUT* hSelProcInput, HANDLE_UNI_DRC_CONFIG hUniDrcConfig, + HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, + DRCDEC_SELECTION** ppCandidatesPotential, + DRCDEC_SELECTION** ppCandidatesSelected) { + DRCDEC_SELECTION_PROCESS_RETURN retVal; + int i; + + if (_drcdec_selection_getNumber(*ppCandidatesPotential) == 0) { + retVal = DRCDEC_SELECTION_PROCESS_NOT_OK; + if (retVal) return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + + if (hSelProcInput->dynamicRangeControlOn) { + if (hSelProcInput->numDrcFeatureRequests == 0) { + retVal = _selectDrcSetEffectNone(hUniDrcConfig, *ppCandidatesPotential, + *ppCandidatesSelected); + if (retVal) return (retVal); + + if (_drcdec_selection_getNumber(*ppCandidatesSelected) == 0) { + DRC_FEATURE_REQUEST fallbackRequest; + fallbackRequest.drcEffectType.numRequests = 5; + fallbackRequest.drcEffectType.numRequestsDesired = 5; + fallbackRequest.drcEffectType.request[0] = DETR_GENERAL_COMPR; + fallbackRequest.drcEffectType.request[1] = DETR_NIGHT; + fallbackRequest.drcEffectType.request[2] = DETR_NOISY; + fallbackRequest.drcEffectType.request[3] = DETR_LIMITED; + fallbackRequest.drcEffectType.request[4] = DETR_LOWLEVEL; + + retVal = _selectEffectTypeFeature(hUniDrcConfig, fallbackRequest, + ppCandidatesPotential, + ppCandidatesSelected); + if (retVal) return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + + _swapSelectionAndClear(ppCandidatesPotential, ppCandidatesSelected); + } else { + for (i = 0; i < hSelProcInput->numDrcFeatureRequests; i++) { + if (hSelProcInput->drcFeatureRequestType[i] == DFRT_EFFECT_TYPE) { + retVal = _selectEffectTypeFeature( + hUniDrcConfig, hSelProcInput->drcFeatureRequest[i], + ppCandidatesPotential, ppCandidatesSelected); + + _swapSelectionAndClear(ppCandidatesPotential, ppCandidatesSelected); + if (retVal) return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + + else if (hSelProcInput->drcFeatureRequestType[i] == + DFRT_DYNAMIC_RANGE) { + retVal = _selectDynamicRange( + hUniDrcConfig, hLoudnessInfoSet, + hSelProcInput->drcFeatureRequest[i], + hSelProcInput->downmixIdRequested, hSelProcInput->albumMode, + *ppCandidatesPotential, *ppCandidatesSelected); + + if (_drcdec_selection_getNumber(*ppCandidatesSelected) > 0) { + _swapSelectionAndClear(ppCandidatesPotential, ppCandidatesSelected); + } + if (retVal) return DRCDEC_SELECTION_PROCESS_NOT_OK; + } else if (hSelProcInput->drcFeatureRequestType[i] == + DFRT_DRC_CHARACTERISTIC) { + retVal = _selectDrcCharacteristic( + hUniDrcConfig, + hSelProcInput->drcFeatureRequest[i].drcCharacteristic, + ppCandidatesPotential, ppCandidatesSelected); + + if (_drcdec_selection_getNumber(*ppCandidatesSelected) > 0) { + _swapSelectionAndClear(ppCandidatesPotential, ppCandidatesSelected); + } + if (retVal) return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + } + } + } + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +/*******************************************/ +static DRCDEC_SELECTION_PROCESS_RETURN _dynamicRangeMeasurement( + HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, DRC_INSTRUCTIONS_UNI_DRC* pInst, + UCHAR downmixIdRequested, + DYN_RANGE_MEASUREMENT_REQUEST_TYPE dynamicRangeMeasurementType, + int albumMode, int* pPeakToAveragePresent, FIXP_DBL* pPeakToAverage) { + int i; + DRCDEC_SELECTION_PROCESS_RETURN retVal = DRCDEC_SELECTION_PROCESS_NO_ERROR; + int drcSetId = fMax(0, pInst->drcSetId); + + *pPeakToAveragePresent = 0; + + if (albumMode) { + for (i = 0; i < hLoudnessInfoSet->loudnessInfoAlbumCount; i++) { + LOUDNESS_INFO* pLoudnessInfo = &(hLoudnessInfoSet->loudnessInfoAlbum[i]); + + if (drcSetId == pLoudnessInfo->drcSetId) { + if (downmixIdRequested == pLoudnessInfo->downmixId) { + retVal = _extractLoudnessPeakToAverageValue( + pLoudnessInfo, dynamicRangeMeasurementType, pPeakToAveragePresent, + pPeakToAverage); + if (retVal) return (retVal); + } + } + } + } + + if (*pPeakToAveragePresent == 0) { + for (i = 0; i < hLoudnessInfoSet->loudnessInfoCount; i++) { + LOUDNESS_INFO* pLoudnessInfo = &(hLoudnessInfoSet->loudnessInfo[i]); + + if (drcSetId == pLoudnessInfo->drcSetId) { + if (downmixIdRequested == pLoudnessInfo->downmixId) { + retVal = _extractLoudnessPeakToAverageValue( + pLoudnessInfo, dynamicRangeMeasurementType, pPeakToAveragePresent, + pPeakToAverage); + if (retVal) return (retVal); + } + } + } + } + + return retVal; +} +/*******************************************/ + +static DRCDEC_SELECTION_DATA* _drcdec_selection_addNew( + DRCDEC_SELECTION* pSelection) { + if (pSelection->numData < (12 + 1 + 6)) { + DRCDEC_SELECTION_DATA* pData = &(pSelection->data[pSelection->numData]); + FDKmemset(pData, 0, sizeof(DRCDEC_SELECTION_DATA)); + pSelection->numData++; + + return pData; + } else { + return NULL; + } +} + +static DRCDEC_SELECTION_DATA* _drcdec_selection_add( + DRCDEC_SELECTION* pSelection, DRCDEC_SELECTION_DATA* pDataIn) { + if (pSelection->numData < (12 + 1 + 6)) { + DRCDEC_SELECTION_DATA* pData = &(pSelection->data[pSelection->numData]); + FDKmemcpy(pData, pDataIn, sizeof(DRCDEC_SELECTION_DATA)); + pSelection->numData++; + return pData; + } else { + return NULL; + } +} + +static int _drcdec_selection_clear(DRCDEC_SELECTION* pSelection) { + return pSelection->numData = 0; +} + +static int _drcdec_selection_getNumber(DRCDEC_SELECTION* pSelection) { + return pSelection->numData; +} + +static int _drcdec_selection_setNumber(DRCDEC_SELECTION* pSelection, int num) { + if (num >= 0 && num < pSelection->numData) { + return pSelection->numData = num; + } else { + return pSelection->numData; + } +} + +static DRCDEC_SELECTION_DATA* _drcdec_selection_getAt( + DRCDEC_SELECTION* pSelection, int at) { + if (at >= 0 && at < (12 + 1 + 6)) { + return &(pSelection->data[at]); + } else { + return NULL; + } +} + +static int _swapSelectionAndClear(DRCDEC_SELECTION** ppCandidatesPotential, + DRCDEC_SELECTION** ppCandidatesSelected) { + DRCDEC_SELECTION* pTmp = *ppCandidatesPotential; + *ppCandidatesPotential = *ppCandidatesSelected; + *ppCandidatesSelected = pTmp; + _drcdec_selection_clear(*ppCandidatesSelected); + return 0; +} + +static int _swapSelection(DRCDEC_SELECTION** ppCandidatesPotential, + DRCDEC_SELECTION** ppCandidatesSelected) { + DRCDEC_SELECTION* pTmp = *ppCandidatesPotential; + *ppCandidatesPotential = *ppCandidatesSelected; + *ppCandidatesSelected = pTmp; + return 0; +} + +/*******************************************/ + +static LOUDNESS_INFO* _getLoudnessInfoStructure( + HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, int drcSetId, int downmixId, + int albumMode) { + int i, j; + int count; + + LOUDNESS_INFO* pLoudnessInfo = NULL; + + if (albumMode) { + count = hLoudnessInfoSet->loudnessInfoAlbumCount; + pLoudnessInfo = hLoudnessInfoSet->loudnessInfoAlbum; + } else { + count = hLoudnessInfoSet->loudnessInfoCount; + pLoudnessInfo = hLoudnessInfoSet->loudnessInfo; + } + + for (i = 0; i < count; i++) { + if ((pLoudnessInfo[i].drcSetId == drcSetId) && + (pLoudnessInfo[i].downmixId == downmixId)) { + for (j = 0; j < pLoudnessInfo[i].measurementCount; j++) { + if ((pLoudnessInfo[i].loudnessMeasurement[j].methodDefinition == 1) || + (pLoudnessInfo[i].loudnessMeasurement[j].methodDefinition == 2)) { + return &pLoudnessInfo[i]; + } + } + } + } + + return NULL; +} + +static LOUDNESS_INFO* _getApplicableLoudnessInfoStructure( + HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, int drcSetId, + int downmixIdRequested, int albumMode) { + LOUDNESS_INFO* pLoudnessInfo = NULL; + + /* default value */ + pLoudnessInfo = _getLoudnessInfoStructure(hLoudnessInfoSet, drcSetId, + downmixIdRequested, albumMode); + + /* fallback values */ + if (pLoudnessInfo == NULL) { + pLoudnessInfo = + _getLoudnessInfoStructure(hLoudnessInfoSet, drcSetId, 0x7F, albumMode); + } + + if (pLoudnessInfo == NULL) { + pLoudnessInfo = _getLoudnessInfoStructure(hLoudnessInfoSet, 0x3F, + downmixIdRequested, albumMode); + } + + if (pLoudnessInfo == NULL) { + pLoudnessInfo = _getLoudnessInfoStructure(hLoudnessInfoSet, 0, + downmixIdRequested, albumMode); + } + + if (pLoudnessInfo == NULL) { + pLoudnessInfo = + _getLoudnessInfoStructure(hLoudnessInfoSet, 0x3F, 0x7F, albumMode); + } + + if (pLoudnessInfo == NULL) { + pLoudnessInfo = + _getLoudnessInfoStructure(hLoudnessInfoSet, 0, 0x7F, albumMode); + } + + if (pLoudnessInfo == NULL) { + pLoudnessInfo = + _getLoudnessInfoStructure(hLoudnessInfoSet, drcSetId, 0, albumMode); + } + + if (pLoudnessInfo == NULL) { + pLoudnessInfo = + _getLoudnessInfoStructure(hLoudnessInfoSet, 0x3F, 0, albumMode); + } + + if (pLoudnessInfo == NULL) { + pLoudnessInfo = + _getLoudnessInfoStructure(hLoudnessInfoSet, 0, 0, albumMode); + } + + return pLoudnessInfo; +} + +/*******************************************/ + +typedef struct { + FIXP_DBL value; + int order; +} VALUE_ORDER; + +void _initValueOrder(VALUE_ORDER* pValue) { + pValue->value = (FIXP_DBL)0; + pValue->order = -1; +} + +enum { + MS_BONUS0 = 0, + MS_BONUS1770, + MS_BONUSUSER, + MS_BONUSEXPERT, + MS_RESA, + MS_RESB, + MS_RESC, + MS_RESD, + MS_RESE, + MS_PROGRAMLOUDNESS, + MS_PEAKLOUDNESS +}; + +static DRCDEC_SELECTION_PROCESS_RETURN _getMethodValue( + VALUE_ORDER* pValueOrder, FIXP_DBL value, int measurementSystem, + int measurementSystemRequested) { + const int rows = 11; + const int columns = 12; + const int pOrdering[rows][columns] = { + {0, 0, 8, 0, 1, 3, 0, 5, 6, 7, 4, 2}, /* default = bonus1770 */ + {0, 0, 8, 0, 1, 3, 0, 5, 6, 7, 4, 2}, /* bonus1770 */ + {0, 0, 1, 0, 8, 5, 0, 2, 3, 4, 6, 7}, /* bonusUser */ + {0, 0, 3, 0, 1, 8, 0, 4, 5, 6, 7, 2}, /* bonusExpert */ + {0, 0, 5, 0, 1, 3, 0, 8, 6, 7, 4, 2}, /* ResA */ + {0, 0, 5, 0, 1, 3, 0, 6, 8, 7, 4, 2}, /* ResB */ + {0, 0, 5, 0, 1, 3, 0, 6, 7, 8, 4, 2}, /* ResC */ + {0, 0, 3, 0, 1, 7, 0, 4, 5, 6, 8, 2}, /* ResD */ + {0, 0, 1, 0, 7, 5, 0, 2, 3, 4, 6, 8}, /* ResE */ + {0, 0, 1, 0, 0, 0, 0, 2, 3, 4, 0, 0}, /* ProgramLoudness */ + {0, 7, 0, 0, 0, 0, 6, 5, 4, 3, 2, 1} /* PeakLoudness */ + }; + + if (measurementSystemRequested < 0 || measurementSystemRequested >= rows || + measurementSystem < 0 || measurementSystem >= columns) { + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + + if (pOrdering[measurementSystemRequested][measurementSystem] > + pValueOrder->order) { + pValueOrder->order = + pOrdering[measurementSystemRequested][measurementSystem]; + pValueOrder->value = value; + } + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +/*******************************************/ + +static DRCDEC_SELECTION_PROCESS_RETURN _getLoudness( + HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, int albumMode, + METHOD_DEFINITION_REQUEST measurementMethodRequested, + MEASUREMENT_SYSTEM_REQUEST measurementSystemRequested, + FIXP_DBL targetLoudness, /* e = 7 */ + int drcSetId, int downmixIdRequested, + FIXP_DBL* pLoudnessNormalizationGain, /* e = 7 */ + FIXP_DBL* pLoudness) /* e = 7 */ +{ + int index; + + LOUDNESS_INFO* pLoudnessInfo = NULL; + VALUE_ORDER valueOrder; + + /* map MDR_DEFAULT to MDR_PROGRAM_LOUDNESS */ + METHOD_DEFINITION_REQUEST requestedMethodDefinition = + measurementMethodRequested < MDR_ANCHOR_LOUDNESS ? MDR_PROGRAM_LOUDNESS + : MDR_ANCHOR_LOUDNESS; + + if (measurementMethodRequested > MDR_ANCHOR_LOUDNESS) { + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + + _initValueOrder(&valueOrder); + + *pLoudness = UNDEFINED_LOUDNESS_VALUE; + *pLoudnessNormalizationGain = (FIXP_DBL)0; + + if (drcSetId < 0) { + drcSetId = 0; + } + + pLoudnessInfo = _getApplicableLoudnessInfoStructure( + hLoudnessInfoSet, drcSetId, downmixIdRequested, albumMode); + + if (albumMode && (pLoudnessInfo == NULL)) { + pLoudnessInfo = _getApplicableLoudnessInfoStructure( + hLoudnessInfoSet, drcSetId, downmixIdRequested, 0); + } + + if (pLoudnessInfo == NULL) { + return DRCDEC_SELECTION_PROCESS_NO_ERROR; + } + + index = -1; + + do { + index = _findMethodDefinition(pLoudnessInfo, requestedMethodDefinition, + index + 1); + + if (index >= 0) { + _getMethodValue( + &valueOrder, pLoudnessInfo->loudnessMeasurement[index].methodValue, + pLoudnessInfo->loudnessMeasurement[index].measurementSystem, + measurementSystemRequested); + } + } while (index >= 0); + + /* repeat with other method definition */ + if (valueOrder.order == -1) { + index = -1; + + do { + index = _findMethodDefinition( + pLoudnessInfo, + requestedMethodDefinition == MDR_PROGRAM_LOUDNESS + ? MDR_ANCHOR_LOUDNESS + : MDR_PROGRAM_LOUDNESS, + index + 1); + + if (index >= 0) { + _getMethodValue( + &valueOrder, pLoudnessInfo->loudnessMeasurement[index].methodValue, + pLoudnessInfo->loudnessMeasurement[index].measurementSystem, + measurementSystemRequested); + } + } while (index >= 0); + } + + if (valueOrder.order == -1) { + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } else { + *pLoudnessNormalizationGain = targetLoudness - valueOrder.value; + *pLoudness = valueOrder.value; + } + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +/*******************************************/ + +static int _truePeakLevelIsPresent(HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, + int drcSetId, int downmixId, int albumMode) { + int i; + int count; + LOUDNESS_INFO* pLoudnessInfo = NULL; + + if (albumMode) { + count = hLoudnessInfoSet->loudnessInfoAlbumCount; + pLoudnessInfo = hLoudnessInfoSet->loudnessInfoAlbum; + } else { + count = hLoudnessInfoSet->loudnessInfoCount; + pLoudnessInfo = hLoudnessInfoSet->loudnessInfo; + } + + for (i = 0; i < count; i++) { + if ((pLoudnessInfo[i].drcSetId == drcSetId) && + (pLoudnessInfo[i].downmixId == downmixId)) { + if (pLoudnessInfo[i].truePeakLevelPresent) return 1; + } + } + + return 0; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _getTruePeakLevel( + HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, int drcSetId, int downmixId, + int albumMode, FIXP_DBL* pTruePeakLevel) { + int i; + int count; + LOUDNESS_INFO* pLoudnessInfo = NULL; + + if (albumMode) { + count = hLoudnessInfoSet->loudnessInfoAlbumCount; + pLoudnessInfo = hLoudnessInfoSet->loudnessInfoAlbum; + } else { + count = hLoudnessInfoSet->loudnessInfoCount; + pLoudnessInfo = hLoudnessInfoSet->loudnessInfo; + } + + for (i = 0; i < count; i++) { + if ((pLoudnessInfo[i].drcSetId == drcSetId) && + (pLoudnessInfo[i].downmixId == downmixId)) { + if (pLoudnessInfo[i].truePeakLevelPresent) { + *pTruePeakLevel = pLoudnessInfo[i].truePeakLevel; + return DRCDEC_SELECTION_PROCESS_NO_ERROR; + } + } + } + + return DRCDEC_SELECTION_PROCESS_NOT_OK; +} + +static int _samplePeakLevelIsPresent(HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, + int drcSetId, int downmixId, + int albumMode) { + int i; + int count; + LOUDNESS_INFO* pLoudnessInfo = NULL; + + if (albumMode) { + count = hLoudnessInfoSet->loudnessInfoAlbumCount; + pLoudnessInfo = hLoudnessInfoSet->loudnessInfoAlbum; + } else { + count = hLoudnessInfoSet->loudnessInfoCount; + pLoudnessInfo = hLoudnessInfoSet->loudnessInfo; + } + + for (i = 0; i < count; i++) { + if ((pLoudnessInfo[i].drcSetId == drcSetId) && + (pLoudnessInfo[i].downmixId == downmixId)) { + if (pLoudnessInfo[i].samplePeakLevelPresent) return 1; + } + } + + return 0; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _getSamplePeakLevel( + HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, int drcSetId, int downmixId, + int albumMode, FIXP_DBL* pSamplePeakLevel /* e = 7 */ +) { + int i; + int count; + LOUDNESS_INFO* pLoudnessInfo = NULL; + + if (albumMode) { + count = hLoudnessInfoSet->loudnessInfoAlbumCount; + pLoudnessInfo = hLoudnessInfoSet->loudnessInfoAlbum; + } else { + count = hLoudnessInfoSet->loudnessInfoCount; + pLoudnessInfo = hLoudnessInfoSet->loudnessInfo; + } + + for (i = 0; i < count; i++) { + if ((pLoudnessInfo[i].drcSetId == drcSetId) && + (pLoudnessInfo[i].downmixId == downmixId)) { + if (pLoudnessInfo[i].samplePeakLevelPresent) { + *pSamplePeakLevel = pLoudnessInfo[i].samplePeakLevel; + return DRCDEC_SELECTION_PROCESS_NO_ERROR; + } + } + } + + return DRCDEC_SELECTION_PROCESS_NOT_OK; +} + +static int _limiterPeakTargetIsPresent( + DRC_INSTRUCTIONS_UNI_DRC* pDrcInstruction, int drcSetId, int downmixId) { + int i; + + if (pDrcInstruction->limiterPeakTargetPresent) { + if ((pDrcInstruction->downmixId[0] == downmixId) || + (pDrcInstruction->downmixId[0] == 0x7F)) { + return 1; + } + + for (i = 0; i < pDrcInstruction->downmixIdCount; i++) { + if (pDrcInstruction->downmixId[i] == downmixId) { + return 1; + } + } + } + + return 0; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _getLimiterPeakTarget( + DRC_INSTRUCTIONS_UNI_DRC* pDrcInstruction, int drcSetId, int downmixId, + FIXP_DBL* pLimiterPeakTarget) { + int i; + + if (pDrcInstruction->limiterPeakTargetPresent) { + if ((pDrcInstruction->downmixId[0] == downmixId) || + (pDrcInstruction->downmixId[0] == 0x7F)) { + *pLimiterPeakTarget = + ((FX_SGL2FX_DBL(pDrcInstruction->limiterPeakTarget) >> 2)); + return DRCDEC_SELECTION_PROCESS_NO_ERROR; + } + + for (i = 0; i < pDrcInstruction->downmixIdCount; i++) { + if (pDrcInstruction->downmixId[i] == downmixId) { + *pLimiterPeakTarget = + ((FX_SGL2FX_DBL(pDrcInstruction->limiterPeakTarget) >> 2)); + return DRCDEC_SELECTION_PROCESS_NO_ERROR; + } + } + } + + return DRCDEC_SELECTION_PROCESS_NOT_OK; +} + +static int _downmixCoefficientsArePresent(HANDLE_UNI_DRC_CONFIG hUniDrcConfig, + int downmixId, int* pIndex) { + int i; + *pIndex = -1; + + for (i = 0; i < hUniDrcConfig->downmixInstructionsCount; i++) { + if (hUniDrcConfig->downmixInstructions[i].downmixId == downmixId) { + if (hUniDrcConfig->downmixInstructions[i].downmixCoefficientsPresent) { + *pIndex = i; + return 1; + } + } + } + + return 0; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _getSignalPeakLevel( + HANDLE_SEL_PROC_INPUT hSelProcInput, HANDLE_UNI_DRC_CONFIG hUniDrcConfig, + HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, DRC_INSTRUCTIONS_UNI_DRC* pInst, + int downmixIdRequested, int* explicitPeakInformationPresent, + FIXP_DBL* signalPeakLevelOut, /* e = 7 */ + SEL_PROC_CODEC_MODE codecMode + +) { + DRCDEC_SELECTION_PROCESS_RETURN retVal = DRCDEC_SELECTION_PROCESS_NO_ERROR; + + int albumMode = hSelProcInput->albumMode; + + FIXP_DBL signalPeakLevelTmp = (FIXP_DBL)0; + FIXP_DBL signalPeakLevel = FIXP_DBL(0); + + int dmxId = downmixIdRequested; + + int drcSetId = pInst->drcSetId; + + if (drcSetId < 0) { + drcSetId = 0; + } + + *explicitPeakInformationPresent = 1; + + if (_truePeakLevelIsPresent(hLoudnessInfoSet, drcSetId, dmxId, albumMode)) { + retVal = _getTruePeakLevel(hLoudnessInfoSet, drcSetId, dmxId, albumMode, + &signalPeakLevel); + if (retVal) return (retVal); + } else if (_samplePeakLevelIsPresent(hLoudnessInfoSet, drcSetId, dmxId, + albumMode)) { + retVal = _getSamplePeakLevel(hLoudnessInfoSet, drcSetId, dmxId, albumMode, + &signalPeakLevel); + if (retVal) return (retVal); + } else if (_truePeakLevelIsPresent(hLoudnessInfoSet, 0x3F, dmxId, + albumMode)) { + retVal = _getTruePeakLevel(hLoudnessInfoSet, 0x3F, dmxId, albumMode, + &signalPeakLevel); + if (retVal) return (retVal); + } else if (_samplePeakLevelIsPresent(hLoudnessInfoSet, 0x3F, dmxId, + albumMode)) { + retVal = _getSamplePeakLevel(hLoudnessInfoSet, 0x3F, dmxId, albumMode, + &signalPeakLevel); + if (retVal) return (retVal); + } else if (_limiterPeakTargetIsPresent(pInst, drcSetId, dmxId)) { + retVal = _getLimiterPeakTarget(pInst, drcSetId, dmxId, &signalPeakLevel); + if (retVal) return (retVal); + } else if (dmxId != 0) { + int downmixInstructionIndex = 0; + FIXP_DBL downmixPeakLevelDB = 0; + + *explicitPeakInformationPresent = 0; + + signalPeakLevelTmp = FIXP_DBL(0); + + if (_downmixCoefficientsArePresent(hUniDrcConfig, dmxId, + &downmixInstructionIndex)) { + FIXP_DBL dB_m; + int dB_e; + FIXP_DBL coeff; + FIXP_DBL sum, maxSum; /* e = 7, so it is possible to sum up up to 32 + downmix coefficients (with e = 2) */ + int i, j; + DOWNMIX_INSTRUCTIONS* pDown = + &(hUniDrcConfig->downmixInstructions[downmixInstructionIndex]); + FIXP_DBL downmixOffset = getDownmixOffset( + pDown, hUniDrcConfig->channelLayout.baseChannelCount); /* e = 1 */ + maxSum = (FIXP_DBL)0; + + for (i = 0; i < pDown->targetChannelCount; i++) { + sum = (FIXP_DBL)0; + for (j = 0; j < hUniDrcConfig->channelLayout.baseChannelCount; j++) { + coeff = pDown->downmixCoefficient[j + i * hUniDrcConfig->channelLayout + .baseChannelCount]; + sum += coeff >> 5; + } + if (maxSum < sum) maxSum = sum; + } + + maxSum = fMultDiv2(maxSum, downmixOffset) << 2; + + if (maxSum == FL2FXCONST_DBL(1.0f / (float)(1 << 7))) { + downmixPeakLevelDB = (FIXP_DBL)0; + } else { + dB_m = lin2dB(maxSum, 7, &dB_e); /* e_maxSum = 7 */ + downmixPeakLevelDB = + scaleValue(dB_m, dB_e - 7); /* e_downmixPeakLevelDB = 7 */ + } + } + + if (_truePeakLevelIsPresent(hLoudnessInfoSet, drcSetId, 0, albumMode)) { + retVal = _getTruePeakLevel(hLoudnessInfoSet, drcSetId, 0, albumMode, + &signalPeakLevelTmp); + if (retVal) return (retVal); + } else if (_samplePeakLevelIsPresent(hLoudnessInfoSet, drcSetId, 0, + albumMode)) { + retVal = _getSamplePeakLevel(hLoudnessInfoSet, drcSetId, 0, albumMode, + &signalPeakLevelTmp); + if (retVal) return (retVal); + } else if (_truePeakLevelIsPresent(hLoudnessInfoSet, 0x3F, 0, albumMode)) { + retVal = _getTruePeakLevel(hLoudnessInfoSet, 0x3F, 0, albumMode, + &signalPeakLevelTmp); + if (retVal) return (retVal); + } else if (_samplePeakLevelIsPresent(hLoudnessInfoSet, 0x3F, 0, + albumMode)) { + retVal = _getSamplePeakLevel(hLoudnessInfoSet, 0x3F, 0, albumMode, + &signalPeakLevelTmp); + if (retVal) return (retVal); + } else if (_limiterPeakTargetIsPresent(pInst, drcSetId, 0)) { + retVal = _getLimiterPeakTarget(pInst, drcSetId, 0, &signalPeakLevelTmp); + if (retVal) return (retVal); + } + + signalPeakLevel = signalPeakLevelTmp + downmixPeakLevelDB; + } else { + signalPeakLevel = FIXP_DBL(0); /* worst case estimate */ + *explicitPeakInformationPresent = FIXP_DBL(0); + } + + *signalPeakLevelOut = signalPeakLevel; + + return retVal; +} + +static DRCDEC_SELECTION_PROCESS_RETURN _extractLoudnessPeakToAverageValue( + LOUDNESS_INFO* loudnessInfo, + DYN_RANGE_MEASUREMENT_REQUEST_TYPE dynamicRangeMeasurementType, + int* pLoudnessPeakToAverageValuePresent, + FIXP_DBL* pLoudnessPeakToAverageValue) { + int i; + + VALUE_ORDER valueOrderLoudness; + VALUE_ORDER valueOrderPeakLoudness; + + _initValueOrder(&valueOrderLoudness); + _initValueOrder(&valueOrderPeakLoudness); + + LOUDNESS_MEASUREMENT* pLoudnessMeasure = NULL; + + *pLoudnessPeakToAverageValuePresent = 0; + + for (i = 0; i < loudnessInfo->measurementCount; i++) { + pLoudnessMeasure = &(loudnessInfo->loudnessMeasurement[i]); + + if (pLoudnessMeasure->methodDefinition == MD_PROGRAM_LOUDNESS) { + _getMethodValue(&valueOrderLoudness, pLoudnessMeasure->methodValue, + pLoudnessMeasure->measurementSystem, MS_PROGRAMLOUDNESS); + } + + if ((dynamicRangeMeasurementType == DRMRT_SHORT_TERM_LOUDNESS_TO_AVG) && + (pLoudnessMeasure->methodDefinition == MD_SHORT_TERM_LOUDNESS_MAX)) { + _getMethodValue(&valueOrderPeakLoudness, pLoudnessMeasure->methodValue, + pLoudnessMeasure->measurementSystem, MS_PEAKLOUDNESS); + } + + if ((dynamicRangeMeasurementType == DRMRT_MOMENTARY_LOUDNESS_TO_AVG) && + (pLoudnessMeasure->methodDefinition == MD_MOMENTARY_LOUDNESS_MAX)) { + _getMethodValue(&valueOrderPeakLoudness, pLoudnessMeasure->methodValue, + pLoudnessMeasure->measurementSystem, MS_PEAKLOUDNESS); + } + + if ((dynamicRangeMeasurementType == DRMRT_TOP_OF_LOUDNESS_RANGE_TO_AVG) && + (pLoudnessMeasure->methodDefinition == MD_MAX_OF_LOUDNESS_RANGE)) { + _getMethodValue(&valueOrderPeakLoudness, pLoudnessMeasure->methodValue, + pLoudnessMeasure->measurementSystem, MS_PEAKLOUDNESS); + } + } + + if ((valueOrderLoudness.order > -1) && (valueOrderPeakLoudness.order > -1)) { + *pLoudnessPeakToAverageValue = + valueOrderPeakLoudness.value - valueOrderLoudness.value; + *pLoudnessPeakToAverageValuePresent = 1; + } + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +/*******************************************/ + +static DRCDEC_SELECTION_PROCESS_RETURN _selectAlbumLoudness( + HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, + DRCDEC_SELECTION* pCandidatesPotential, + DRCDEC_SELECTION* pCandidatesSelected) { + int i, j; + + for (i = 0; i < _drcdec_selection_getNumber(pCandidatesPotential); i++) { + DRCDEC_SELECTION_DATA* pCandidate = + _drcdec_selection_getAt(pCandidatesPotential, i); + if (pCandidate == NULL) return DRCDEC_SELECTION_PROCESS_NOT_OK; + + for (j = 0; j < hLoudnessInfoSet->loudnessInfoAlbumCount; j++) { + if (pCandidate->pInst->drcSetId == + hLoudnessInfoSet->loudnessInfoAlbum[j].drcSetId) { + if (_drcdec_selection_add(pCandidatesSelected, pCandidate) == NULL) + return DRCDEC_SELECTION_PROCESS_NOT_OK; + } + } + } + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +/*******************************************/ + +static int _findMethodDefinition(LOUDNESS_INFO* pLoudnessInfo, + int methodDefinition, int startIndex) { + int i; + int index = -1; + + for (i = startIndex; i < pLoudnessInfo->measurementCount; i++) { + if (pLoudnessInfo->loudnessMeasurement[i].methodDefinition == + methodDefinition) { + index = i; + break; + } + } + + return index; +} + +/*******************************************/ + +static DRCDEC_SELECTION_PROCESS_RETURN _getMixingLevel( + HANDLE_LOUDNESS_INFO_SET hLoudnessInfoSet, int downmixIdRequested, + int drcSetIdRequested, int albumMode, FIXP_DBL* pMixingLevel) { + const FIXP_DBL mixingLevelDefault = FL2FXCONST_DBL(85.0f / (float)(1 << 7)); + + int i; + int count; + + LOUDNESS_INFO* pLoudnessInfo = NULL; + + *pMixingLevel = mixingLevelDefault; + + if (drcSetIdRequested < 0) { + drcSetIdRequested = 0; + } + + if (albumMode) { + count = hLoudnessInfoSet->loudnessInfoAlbumCount; + pLoudnessInfo = hLoudnessInfoSet->loudnessInfoAlbum; + } else { + count = hLoudnessInfoSet->loudnessInfoCount; + pLoudnessInfo = hLoudnessInfoSet->loudnessInfo; + } + + for (i = 0; i < count; i++) { + if ((drcSetIdRequested == pLoudnessInfo[i].drcSetId) && + ((downmixIdRequested == pLoudnessInfo[i].downmixId) || + (DOWNMIX_ID_ANY_DOWNMIX == pLoudnessInfo[i].downmixId))) { + int index = _findMethodDefinition(&pLoudnessInfo[i], MD_MIXING_LEVEL, 0); + + if (index >= 0) { + *pMixingLevel = pLoudnessInfo[i].loudnessMeasurement[index].methodValue; + break; + } + } + } + + return DRCDEC_SELECTION_PROCESS_NO_ERROR; +} + +/*******************************************/ |