| /* ----------------------------------------------------------------------------- |
| 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): Bernhard Neugebauer |
| |
| Description: MPEG-D DRC Decoder |
| |
| *******************************************************************************/ |
| |
| #include "drcDec_reader.h" |
| #include "drcDec_gainDecoder.h" |
| #include "FDK_drcDecLib.h" |
| |
| #include "drcDec_selectionProcess.h" |
| #include "drcDec_tools.h" |
| |
| /* Decoder library info */ |
| #define DRCDEC_LIB_VL0 2 |
| #define DRCDEC_LIB_VL1 1 |
| #define DRCDEC_LIB_VL2 0 |
| #define DRCDEC_LIB_TITLE "MPEG-D DRC Decoder Lib" |
| #ifdef __ANDROID__ |
| #define DRCDEC_LIB_BUILD_DATE "" |
| #define DRCDEC_LIB_BUILD_TIME "" |
| #else |
| #define DRCDEC_LIB_BUILD_DATE __DATE__ |
| #define DRCDEC_LIB_BUILD_TIME __TIME__ |
| #endif |
| |
| typedef enum { |
| DRC_DEC_NOT_INITIALIZED = 0, |
| DRC_DEC_INITIALIZED, |
| DRC_DEC_NEW_GAIN_PAYLOAD, |
| DRC_DEC_INTERPOLATION_PREPARED |
| } DRC_DEC_STATUS; |
| |
| struct s_drc_decoder { |
| DRC_DEC_CODEC_MODE codecMode; |
| DRC_DEC_FUNCTIONAL_RANGE functionalRange; |
| DRC_DEC_STATUS status; |
| |
| /* handles of submodules */ |
| HANDLE_DRC_GAIN_DECODER hGainDec; |
| HANDLE_DRC_SELECTION_PROCESS hSelectionProc; |
| int selProcInputDiff; |
| |
| /* data structs */ |
| UNI_DRC_CONFIG uniDrcConfig; |
| LOUDNESS_INFO_SET loudnessInfoSet; |
| UNI_DRC_GAIN uniDrcGain; |
| |
| SEL_PROC_OUTPUT selProcOutput; |
| } DRC_DECODER; |
| |
| static int isResetNeeded(HANDLE_DRC_DECODER hDrcDec, |
| const SEL_PROC_OUTPUT oldSelProcOutput) { |
| int i, resetNeeded = 0; |
| |
| if (hDrcDec->selProcOutput.numSelectedDrcSets != |
| oldSelProcOutput.numSelectedDrcSets) { |
| resetNeeded = 1; |
| } else { |
| for (i = 0; i < hDrcDec->selProcOutput.numSelectedDrcSets; i++) { |
| if (hDrcDec->selProcOutput.selectedDrcSetIds[i] != |
| oldSelProcOutput.selectedDrcSetIds[i]) |
| resetNeeded = 1; |
| if (hDrcDec->selProcOutput.selectedDownmixIds[i] != |
| oldSelProcOutput.selectedDownmixIds[i]) |
| resetNeeded = 1; |
| } |
| } |
| |
| if (hDrcDec->selProcOutput.boost != oldSelProcOutput.boost) resetNeeded = 1; |
| if (hDrcDec->selProcOutput.compress != oldSelProcOutput.compress) |
| resetNeeded = 1; |
| |
| /* Note: Changes in downmix matrix are not caught, as they don't affect the |
| * DRC gain decoder */ |
| |
| return resetNeeded; |
| } |
| |
| static DRC_DEC_ERROR startSelectionProcess(HANDLE_DRC_DECODER hDrcDec) { |
| DRC_ERROR dErr = DE_OK; |
| DRCDEC_SELECTION_PROCESS_RETURN sErr = DRCDEC_SELECTION_PROCESS_NO_ERROR; |
| int uniDrcConfigHasChanged = 0; |
| SEL_PROC_OUTPUT oldSelProcOutput = hDrcDec->selProcOutput; |
| |
| if (!hDrcDec->status) return DRC_DEC_NOT_READY; |
| |
| if (hDrcDec->functionalRange & DRC_DEC_SELECTION) { |
| uniDrcConfigHasChanged = hDrcDec->uniDrcConfig.diff; |
| if (hDrcDec->uniDrcConfig.diff || hDrcDec->loudnessInfoSet.diff || |
| hDrcDec->selProcInputDiff) { |
| /* in case of an error, signal that selection process was not successful |
| */ |
| hDrcDec->selProcOutput.numSelectedDrcSets = 0; |
| |
| sErr = drcDec_SelectionProcess_Process( |
| hDrcDec->hSelectionProc, &(hDrcDec->uniDrcConfig), |
| &(hDrcDec->loudnessInfoSet), &(hDrcDec->selProcOutput)); |
| if (sErr) return DRC_DEC_OK; |
| |
| hDrcDec->selProcInputDiff = 0; |
| hDrcDec->uniDrcConfig.diff = 0; |
| hDrcDec->loudnessInfoSet.diff = 0; |
| } |
| } |
| |
| if (hDrcDec->functionalRange & DRC_DEC_GAIN) { |
| if (isResetNeeded(hDrcDec, oldSelProcOutput) || uniDrcConfigHasChanged) { |
| dErr = |
| drcDec_GainDecoder_Config(hDrcDec->hGainDec, &(hDrcDec->uniDrcConfig), |
| hDrcDec->selProcOutput.numSelectedDrcSets, |
| hDrcDec->selProcOutput.selectedDrcSetIds, |
| hDrcDec->selProcOutput.selectedDownmixIds); |
| if (dErr) return DRC_DEC_OK; |
| } |
| } |
| return DRC_DEC_OK; |
| } |
| |
| DRC_DEC_ERROR |
| FDK_drcDec_Open(HANDLE_DRC_DECODER* phDrcDec, |
| const DRC_DEC_FUNCTIONAL_RANGE functionalRange) { |
| DRC_ERROR dErr = DE_OK; |
| DRCDEC_SELECTION_PROCESS_RETURN sErr = DRCDEC_SELECTION_PROCESS_NO_ERROR; |
| HANDLE_DRC_DECODER hDrcDec; |
| |
| *phDrcDec = (HANDLE_DRC_DECODER)FDKcalloc(1, sizeof(DRC_DECODER)); |
| if (!*phDrcDec) return DRC_DEC_OUT_OF_MEMORY; |
| hDrcDec = *phDrcDec; |
| |
| hDrcDec->functionalRange = functionalRange; |
| |
| hDrcDec->status = DRC_DEC_NOT_INITIALIZED; |
| hDrcDec->codecMode = DRC_DEC_CODEC_MODE_UNDEFINED; |
| |
| if (hDrcDec->functionalRange & DRC_DEC_SELECTION) { |
| sErr = drcDec_SelectionProcess_Create(&(hDrcDec->hSelectionProc)); |
| if (sErr) return DRC_DEC_OUT_OF_MEMORY; |
| sErr = drcDec_SelectionProcess_Init(hDrcDec->hSelectionProc); |
| if (sErr) return DRC_DEC_NOT_OK; |
| hDrcDec->selProcInputDiff = 1; |
| } |
| |
| if (hDrcDec->functionalRange & DRC_DEC_GAIN) { |
| dErr = drcDec_GainDecoder_Open(&(hDrcDec->hGainDec)); |
| if (dErr) return DRC_DEC_OUT_OF_MEMORY; |
| } |
| |
| return DRC_DEC_OK; |
| } |
| |
| DRC_DEC_ERROR |
| FDK_drcDec_SetCodecMode(HANDLE_DRC_DECODER hDrcDec, |
| const DRC_DEC_CODEC_MODE codecMode) { |
| DRC_ERROR dErr = DE_OK; |
| DRCDEC_SELECTION_PROCESS_RETURN sErr = DRCDEC_SELECTION_PROCESS_NO_ERROR; |
| |
| if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED; |
| |
| if (hDrcDec->codecMode == |
| DRC_DEC_CODEC_MODE_UNDEFINED) { /* Set codec mode, if it is set for the |
| first time */ |
| hDrcDec->codecMode = codecMode; |
| |
| if (hDrcDec->functionalRange & DRC_DEC_SELECTION) { |
| sErr = drcDec_SelectionProcess_SetCodecMode( |
| hDrcDec->hSelectionProc, (SEL_PROC_CODEC_MODE)codecMode); |
| if (sErr) return DRC_DEC_NOT_OK; |
| hDrcDec->selProcInputDiff = 1; |
| } |
| |
| if (hDrcDec->functionalRange & DRC_DEC_GAIN) { |
| DELAY_MODE delayMode; |
| int timeDomainSupported; |
| SUBBAND_DOMAIN_MODE subbandDomainSupported; |
| |
| switch (hDrcDec->codecMode) { |
| case DRC_DEC_MPEG_4_AAC: |
| case DRC_DEC_MPEG_D_USAC: |
| case DRC_DEC_MPEG_H_3DA: |
| default: |
| delayMode = DM_REGULAR_DELAY; |
| } |
| |
| switch (hDrcDec->codecMode) { |
| case DRC_DEC_MPEG_4_AAC: |
| case DRC_DEC_MPEG_D_USAC: |
| timeDomainSupported = 1; |
| subbandDomainSupported = SDM_OFF; |
| break; |
| case DRC_DEC_MPEG_H_3DA: |
| timeDomainSupported = 1; |
| subbandDomainSupported = SDM_STFT256; |
| break; |
| |
| case DRC_DEC_TEST_TIME_DOMAIN: |
| timeDomainSupported = 1; |
| subbandDomainSupported = SDM_OFF; |
| break; |
| case DRC_DEC_TEST_QMF_DOMAIN: |
| timeDomainSupported = 0; |
| subbandDomainSupported = SDM_QMF64; |
| break; |
| case DRC_DEC_TEST_STFT_DOMAIN: |
| timeDomainSupported = 0; |
| subbandDomainSupported = SDM_STFT256; |
| break; |
| |
| default: |
| timeDomainSupported = 0; |
| subbandDomainSupported = SDM_OFF; |
| } |
| |
| dErr = drcDec_GainDecoder_SetCodecDependentParameters( |
| hDrcDec->hGainDec, delayMode, timeDomainSupported, |
| subbandDomainSupported); |
| if (dErr) return DRC_DEC_NOT_OK; |
| } |
| } |
| |
| /* Don't allow changing codecMode if it has already been set. */ |
| if (hDrcDec->codecMode != codecMode) return DRC_DEC_NOT_OK; |
| |
| return DRC_DEC_OK; |
| } |
| |
| DRC_DEC_ERROR |
| FDK_drcDec_Init(HANDLE_DRC_DECODER hDrcDec, const int frameSize, |
| const int sampleRate, const int baseChannelCount) { |
| DRC_ERROR dErr = DE_OK; |
| DRCDEC_SELECTION_PROCESS_RETURN sErr = DRCDEC_SELECTION_PROCESS_NO_ERROR; |
| |
| if (hDrcDec == NULL || frameSize == 0 || sampleRate == 0 || |
| baseChannelCount == 0) |
| return DRC_DEC_OK; /* return without doing anything */ |
| |
| if (hDrcDec->functionalRange & DRC_DEC_SELECTION) { |
| sErr = drcDec_SelectionProcess_SetParam( |
| hDrcDec->hSelectionProc, SEL_PROC_BASE_CHANNEL_COUNT, |
| (FIXP_DBL)baseChannelCount, &(hDrcDec->selProcInputDiff)); |
| if (sErr) return DRC_DEC_NOT_OK; |
| sErr = drcDec_SelectionProcess_SetParam( |
| hDrcDec->hSelectionProc, SEL_PROC_SAMPLE_RATE, (FIXP_DBL)sampleRate, |
| &(hDrcDec->selProcInputDiff)); |
| if (sErr) return DRC_DEC_NOT_OK; |
| } |
| |
| if (hDrcDec->functionalRange & DRC_DEC_GAIN) { |
| dErr = drcDec_GainDecoder_Init(hDrcDec->hGainDec, frameSize, sampleRate); |
| if (dErr) return DRC_DEC_NOT_OK; |
| } |
| |
| hDrcDec->status = DRC_DEC_INITIALIZED; |
| |
| startSelectionProcess(hDrcDec); |
| |
| return DRC_DEC_OK; |
| } |
| |
| DRC_DEC_ERROR |
| FDK_drcDec_Close(HANDLE_DRC_DECODER* phDrcDec) { |
| HANDLE_DRC_DECODER hDrcDec; |
| |
| if (phDrcDec == NULL) { |
| return DRC_DEC_OK; |
| } |
| |
| hDrcDec = *phDrcDec; |
| |
| if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED; |
| |
| if (hDrcDec->functionalRange & DRC_DEC_GAIN) { |
| drcDec_GainDecoder_Close(&(hDrcDec->hGainDec)); |
| } |
| |
| if (hDrcDec->functionalRange & DRC_DEC_SELECTION) { |
| drcDec_SelectionProcess_Delete(&(hDrcDec->hSelectionProc)); |
| } |
| |
| FDKfree(*phDrcDec); |
| *phDrcDec = NULL; |
| |
| return DRC_DEC_OK; |
| } |
| |
| DRC_DEC_ERROR |
| FDK_drcDec_SetParam(HANDLE_DRC_DECODER hDrcDec, |
| const DRC_DEC_USERPARAM requestType, |
| const FIXP_DBL requestValue) { |
| DRCDEC_SELECTION_PROCESS_RETURN sErr = DRCDEC_SELECTION_PROCESS_NO_ERROR; |
| |
| if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED; |
| |
| if (hDrcDec->functionalRange == DRC_DEC_GAIN) |
| return DRC_DEC_NOT_OK; /* not supported for DRC_DEC_GAIN. All parameters are |
| handed over to selection process lib. */ |
| |
| switch (requestType) { |
| case DRC_DEC_BOOST: |
| sErr = drcDec_SelectionProcess_SetParam(hDrcDec->hSelectionProc, |
| SEL_PROC_BOOST, requestValue, |
| &(hDrcDec->selProcInputDiff)); |
| if (sErr) return DRC_DEC_PARAM_OUT_OF_RANGE; |
| break; |
| case DRC_DEC_COMPRESS: |
| sErr = drcDec_SelectionProcess_SetParam(hDrcDec->hSelectionProc, |
| SEL_PROC_COMPRESS, requestValue, |
| &(hDrcDec->selProcInputDiff)); |
| if (sErr) return DRC_DEC_PARAM_OUT_OF_RANGE; |
| break; |
| case DRC_DEC_LOUDNESS_NORMALIZATION_ON: |
| sErr = drcDec_SelectionProcess_SetParam( |
| hDrcDec->hSelectionProc, SEL_PROC_LOUDNESS_NORMALIZATION_ON, |
| requestValue, &(hDrcDec->selProcInputDiff)); |
| if (sErr) return DRC_DEC_PARAM_OUT_OF_RANGE; |
| break; |
| case DRC_DEC_TARGET_LOUDNESS: |
| sErr = drcDec_SelectionProcess_SetParam( |
| hDrcDec->hSelectionProc, SEL_PROC_TARGET_LOUDNESS, requestValue, |
| &(hDrcDec->selProcInputDiff)); |
| if (sErr) return DRC_DEC_PARAM_OUT_OF_RANGE; |
| break; |
| case DRC_DEC_EFFECT_TYPE: |
| sErr = drcDec_SelectionProcess_SetParam( |
| hDrcDec->hSelectionProc, SEL_PROC_EFFECT_TYPE, requestValue, |
| &(hDrcDec->selProcInputDiff)); |
| if (sErr) return DRC_DEC_PARAM_OUT_OF_RANGE; |
| break; |
| case DRC_DEC_DOWNMIX_ID: |
| sErr = drcDec_SelectionProcess_SetParam(hDrcDec->hSelectionProc, |
| SEL_PROC_DOWNMIX_ID, requestValue, |
| &(hDrcDec->selProcInputDiff)); |
| if (sErr) return DRC_DEC_PARAM_OUT_OF_RANGE; |
| break; |
| case DRC_DEC_TARGET_CHANNEL_COUNT_REQUESTED: |
| sErr = drcDec_SelectionProcess_SetParam( |
| hDrcDec->hSelectionProc, SEL_PROC_TARGET_CHANNEL_COUNT, requestValue, |
| &(hDrcDec->selProcInputDiff)); |
| if (sErr) return DRC_DEC_PARAM_OUT_OF_RANGE; |
| break; |
| case DRC_DEC_BASE_CHANNEL_COUNT: |
| sErr = drcDec_SelectionProcess_SetParam( |
| hDrcDec->hSelectionProc, SEL_PROC_BASE_CHANNEL_COUNT, requestValue, |
| &(hDrcDec->selProcInputDiff)); |
| if (sErr) return DRC_DEC_NOT_OK; |
| break; |
| case DRC_DEC_LOUDNESS_MEASUREMENT_METHOD: |
| sErr = drcDec_SelectionProcess_SetParam( |
| hDrcDec->hSelectionProc, SEL_PROC_LOUDNESS_MEASUREMENT_METHOD, |
| requestValue, &(hDrcDec->selProcInputDiff)); |
| if (sErr) return DRC_DEC_PARAM_OUT_OF_RANGE; |
| break; |
| default: |
| return DRC_DEC_INVALID_PARAM; |
| } |
| |
| /* All parameters need a new start of the selection process */ |
| startSelectionProcess(hDrcDec); |
| |
| return DRC_DEC_OK; |
| } |
| |
| LONG FDK_drcDec_GetParam(HANDLE_DRC_DECODER hDrcDec, |
| const DRC_DEC_USERPARAM requestType) { |
| if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED; |
| |
| switch (requestType) { |
| case DRC_DEC_BOOST: |
| return (LONG)hDrcDec->selProcOutput.boost; |
| case DRC_DEC_COMPRESS: |
| return (LONG)hDrcDec->selProcOutput.compress; |
| case DRC_DEC_IS_MULTIBAND_DRC_1: |
| return (LONG)bitstreamContainsMultibandDrc(&hDrcDec->uniDrcConfig, 0); |
| case DRC_DEC_IS_MULTIBAND_DRC_2: |
| return (LONG)bitstreamContainsMultibandDrc(&hDrcDec->uniDrcConfig, 0x7F); |
| case DRC_DEC_IS_ACTIVE: { |
| /* MPEG-D DRC is considered active (and overrides MPEG-4 DRC), if |
| * uniDrc payload is present (loudnessInfoSet and/or uniDrcConfig) |
| * at least one of DRC and Loudness Control is switched on */ |
| int drcOn = drcDec_SelectionProcess_GetParam( |
| hDrcDec->hSelectionProc, SEL_PROC_DYNAMIC_RANGE_CONTROL_ON); |
| int lnOn = drcDec_SelectionProcess_GetParam( |
| hDrcDec->hSelectionProc, SEL_PROC_LOUDNESS_NORMALIZATION_ON); |
| int uniDrcPayloadPresent = |
| (hDrcDec->loudnessInfoSet.loudnessInfoCount > 0); |
| uniDrcPayloadPresent |= |
| (hDrcDec->loudnessInfoSet.loudnessInfoAlbumCount > 0); |
| uniDrcPayloadPresent |= |
| (hDrcDec->uniDrcConfig.drcInstructionsUniDrcCount > 0); |
| uniDrcPayloadPresent |= |
| (hDrcDec->uniDrcConfig.downmixInstructionsCount > 0); |
| return (LONG)(uniDrcPayloadPresent && (drcOn || lnOn)); |
| } |
| case DRC_DEC_TARGET_CHANNEL_COUNT_SELECTED: |
| return (LONG)hDrcDec->selProcOutput.targetChannelCount; |
| default: |
| return 0; |
| } |
| } |
| |
| DRC_DEC_ERROR |
| FDK_drcDec_SetInterfaceParameters(HANDLE_DRC_DECODER hDrcDec, |
| HANDLE_UNI_DRC_INTERFACE hUniDrcInterface) { |
| return DRC_DEC_UNSUPPORTED_FUNCTION; |
| } |
| |
| DRC_DEC_ERROR |
| FDK_drcDec_SetSelectionProcessMpeghParameters_simple( |
| HANDLE_DRC_DECODER hDrcDec, const int groupPresetIdRequested, |
| const int numGroupIdsRequested, const int* groupIdsRequested) { |
| return DRC_DEC_UNSUPPORTED_FUNCTION; |
| } |
| |
| DRC_DEC_ERROR |
| FDK_drcDec_SetDownmixInstructions(HANDLE_DRC_DECODER hDrcDec, |
| const int numDownmixId, const int* downmixId, |
| const int* targetLayout, |
| const int* targetChannelCount) { |
| return DRC_DEC_UNSUPPORTED_FUNCTION; |
| } |
| |
| void FDK_drcDec_SetSelectionProcessOutput( |
| HANDLE_DRC_DECODER hDrcDec, HANDLE_SEL_PROC_OUTPUT hSelProcOutput) {} |
| |
| HANDLE_SEL_PROC_OUTPUT |
| FDK_drcDec_GetSelectionProcessOutput(HANDLE_DRC_DECODER hDrcDec) { |
| if (hDrcDec == NULL) return NULL; |
| |
| return &(hDrcDec->selProcOutput); |
| } |
| |
| LONG /* FIXP_DBL, e = 7 */ |
| FDK_drcDec_GetGroupLoudness(HANDLE_SEL_PROC_OUTPUT hSelProcOutput, |
| const int groupID, int* groupLoudnessAvailable) { |
| return (LONG)0; |
| } |
| |
| void FDK_drcDec_SetChannelGains(HANDLE_DRC_DECODER hDrcDec, |
| const int numChannels, const int frameSize, |
| FIXP_DBL* channelGainDb, FIXP_DBL* audioBuffer, |
| const int audioBufferChannelOffset) { |
| int err; |
| |
| if (hDrcDec == NULL) return; |
| |
| err = drcDec_GainDecoder_SetLoudnessNormalizationGainDb( |
| hDrcDec->hGainDec, hDrcDec->selProcOutput.loudnessNormalizationGainDb); |
| if (err) return; |
| |
| drcDec_GainDecoder_SetChannelGains(hDrcDec->hGainDec, numChannels, frameSize, |
| channelGainDb, audioBufferChannelOffset, |
| audioBuffer); |
| } |
| |
| DRC_DEC_ERROR |
| FDK_drcDec_ReadUniDrcConfig(HANDLE_DRC_DECODER hDrcDec, |
| HANDLE_FDK_BITSTREAM hBitstream) { |
| DRC_ERROR dErr = DE_OK; |
| |
| if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED; |
| |
| if (hDrcDec->codecMode == DRC_DEC_MPEG_D_USAC) { |
| dErr = drcDec_readUniDrcConfig(hBitstream, &(hDrcDec->uniDrcConfig)); |
| } else |
| return DRC_DEC_NOT_OK; |
| |
| if (dErr) { |
| /* clear config, if parsing error occured */ |
| FDKmemclear(&hDrcDec->uniDrcConfig, sizeof(hDrcDec->uniDrcConfig)); |
| hDrcDec->uniDrcConfig.diff = 1; |
| } |
| |
| startSelectionProcess(hDrcDec); |
| |
| return DRC_DEC_OK; |
| } |
| |
| DRC_DEC_ERROR |
| FDK_drcDec_ReadDownmixInstructions_Box(HANDLE_DRC_DECODER hDrcDec, |
| HANDLE_FDK_BITSTREAM hBitstream) { |
| DRC_ERROR dErr = DE_OK; |
| |
| if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED; |
| |
| return DRC_DEC_NOT_OK; |
| |
| if (dErr) { |
| /* clear config, if parsing error occurred */ |
| FDKmemclear(&hDrcDec->uniDrcConfig.downmixInstructions, |
| sizeof(hDrcDec->uniDrcConfig.downmixInstructions)); |
| hDrcDec->uniDrcConfig.downmixInstructionsCount = 0; |
| hDrcDec->uniDrcConfig.downmixInstructionsCountV0 = 0; |
| hDrcDec->uniDrcConfig.downmixInstructionsCountV1 = 0; |
| hDrcDec->uniDrcConfig.diff = 1; |
| } |
| |
| startSelectionProcess(hDrcDec); |
| |
| return DRC_DEC_OK; |
| } |
| |
| DRC_DEC_ERROR |
| FDK_drcDec_ReadUniDrcInstructions_Box(HANDLE_DRC_DECODER hDrcDec, |
| HANDLE_FDK_BITSTREAM hBitstream) { |
| DRC_ERROR dErr = DE_OK; |
| |
| if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED; |
| |
| return DRC_DEC_NOT_OK; |
| |
| if (dErr) { |
| /* clear config, if parsing error occurred */ |
| FDKmemclear(&hDrcDec->uniDrcConfig.drcInstructionsUniDrc, |
| sizeof(hDrcDec->uniDrcConfig.drcInstructionsUniDrc)); |
| hDrcDec->uniDrcConfig.drcInstructionsUniDrcCount = 0; |
| hDrcDec->uniDrcConfig.drcInstructionsUniDrcCountV0 = 0; |
| hDrcDec->uniDrcConfig.drcInstructionsUniDrcCountV1 = 0; |
| hDrcDec->uniDrcConfig.diff = 1; |
| } |
| |
| startSelectionProcess(hDrcDec); |
| |
| return DRC_DEC_OK; |
| } |
| |
| DRC_DEC_ERROR |
| FDK_drcDec_ReadUniDrcCoefficients_Box(HANDLE_DRC_DECODER hDrcDec, |
| HANDLE_FDK_BITSTREAM hBitstream) { |
| DRC_ERROR dErr = DE_OK; |
| |
| if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED; |
| |
| return DRC_DEC_NOT_OK; |
| |
| if (dErr) { |
| /* clear config, if parsing error occurred */ |
| FDKmemclear(&hDrcDec->uniDrcConfig.drcCoefficientsUniDrc, |
| sizeof(hDrcDec->uniDrcConfig.drcCoefficientsUniDrc)); |
| hDrcDec->uniDrcConfig.drcCoefficientsUniDrcCount = 0; |
| hDrcDec->uniDrcConfig.drcCoefficientsUniDrcCountV0 = 0; |
| hDrcDec->uniDrcConfig.drcCoefficientsUniDrcCountV1 = 0; |
| hDrcDec->uniDrcConfig.diff = 1; |
| } |
| |
| startSelectionProcess(hDrcDec); |
| |
| return DRC_DEC_OK; |
| } |
| |
| DRC_DEC_ERROR |
| FDK_drcDec_ReadLoudnessInfoSet(HANDLE_DRC_DECODER hDrcDec, |
| HANDLE_FDK_BITSTREAM hBitstream) { |
| DRC_ERROR dErr = DE_OK; |
| |
| if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED; |
| |
| if (hDrcDec->codecMode == DRC_DEC_MPEG_D_USAC) { |
| dErr = drcDec_readLoudnessInfoSet(hBitstream, &(hDrcDec->loudnessInfoSet)); |
| } else |
| return DRC_DEC_NOT_OK; |
| |
| if (dErr) { |
| /* clear config, if parsing error occurred */ |
| FDKmemclear(&hDrcDec->loudnessInfoSet, sizeof(hDrcDec->loudnessInfoSet)); |
| hDrcDec->loudnessInfoSet.diff = 1; |
| } |
| |
| startSelectionProcess(hDrcDec); |
| |
| return DRC_DEC_OK; |
| } |
| |
| DRC_DEC_ERROR |
| FDK_drcDec_ReadLoudnessBox(HANDLE_DRC_DECODER hDrcDec, |
| HANDLE_FDK_BITSTREAM hBitstream) { |
| DRC_ERROR dErr = DE_OK; |
| |
| if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED; |
| |
| return DRC_DEC_NOT_OK; |
| |
| if (dErr) { |
| /* clear config, if parsing error occurred */ |
| FDKmemclear(&hDrcDec->loudnessInfoSet, sizeof(hDrcDec->loudnessInfoSet)); |
| hDrcDec->loudnessInfoSet.diff = 1; |
| } |
| |
| startSelectionProcess(hDrcDec); |
| |
| return DRC_DEC_OK; |
| } |
| |
| DRC_DEC_ERROR |
| FDK_drcDec_ReadUniDrcGain(HANDLE_DRC_DECODER hDrcDec, |
| HANDLE_FDK_BITSTREAM hBitstream) { |
| DRC_ERROR dErr = DE_OK; |
| |
| if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED; |
| if (!hDrcDec->status) { |
| return DRC_DEC_OK; |
| } |
| |
| dErr = drcDec_readUniDrcGain( |
| hBitstream, &(hDrcDec->uniDrcConfig), |
| drcDec_GainDecoder_GetFrameSize(hDrcDec->hGainDec), |
| drcDec_GainDecoder_GetDeltaTminDefault(hDrcDec->hGainDec), |
| &(hDrcDec->uniDrcGain)); |
| if (dErr) return DRC_DEC_NOT_OK; |
| |
| hDrcDec->status = DRC_DEC_NEW_GAIN_PAYLOAD; |
| |
| return DRC_DEC_OK; |
| } |
| |
| DRC_DEC_ERROR |
| FDK_drcDec_ReadUniDrc(HANDLE_DRC_DECODER hDrcDec, |
| HANDLE_FDK_BITSTREAM hBitstream) { |
| DRC_ERROR dErr = DE_OK; |
| |
| if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED; |
| if (!hDrcDec->status) return DRC_DEC_NOT_READY; |
| |
| dErr = drcDec_readUniDrc( |
| hBitstream, &(hDrcDec->uniDrcConfig), &(hDrcDec->loudnessInfoSet), |
| drcDec_GainDecoder_GetFrameSize(hDrcDec->hGainDec), |
| drcDec_GainDecoder_GetDeltaTminDefault(hDrcDec->hGainDec), |
| &(hDrcDec->uniDrcGain)); |
| if (dErr) return DRC_DEC_NOT_OK; |
| |
| startSelectionProcess(hDrcDec); |
| |
| hDrcDec->status = DRC_DEC_NEW_GAIN_PAYLOAD; |
| |
| return DRC_DEC_OK; |
| } |
| |
| DRC_DEC_ERROR |
| FDK_drcDec_Preprocess(HANDLE_DRC_DECODER hDrcDec) { |
| DRC_ERROR dErr = DE_OK; |
| |
| if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED; |
| if (!hDrcDec->status) return DRC_DEC_NOT_READY; |
| if (!(hDrcDec->functionalRange & DRC_DEC_GAIN)) return DRC_DEC_NOT_OK; |
| |
| if (hDrcDec->status != DRC_DEC_NEW_GAIN_PAYLOAD) { |
| /* no new gain payload was read, e.g. during concalment or flushing. |
| Generate DRC gains based on the stored DRC gains of last frames */ |
| drcDec_GainDecoder_Conceal(hDrcDec->hGainDec, &(hDrcDec->uniDrcConfig), |
| &(hDrcDec->uniDrcGain)); |
| } |
| |
| dErr = drcDec_GainDecoder_Preprocess( |
| hDrcDec->hGainDec, &(hDrcDec->uniDrcGain), |
| hDrcDec->selProcOutput.loudnessNormalizationGainDb, |
| hDrcDec->selProcOutput.boost, hDrcDec->selProcOutput.compress); |
| if (dErr) return DRC_DEC_NOT_OK; |
| hDrcDec->status = DRC_DEC_INTERPOLATION_PREPARED; |
| |
| return DRC_DEC_OK; |
| } |
| |
| DRC_DEC_ERROR |
| FDK_drcDec_ProcessTime(HANDLE_DRC_DECODER hDrcDec, const int delaySamples, |
| const DRC_DEC_LOCATION drcLocation, |
| const int channelOffset, const int drcChannelOffset, |
| const int numChannelsProcessed, FIXP_DBL* realBuffer, |
| const int timeDataChannelOffset) { |
| DRC_ERROR dErr = DE_OK; |
| |
| if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED; |
| if (!(hDrcDec->functionalRange & DRC_DEC_GAIN)) return DRC_DEC_NOT_OK; |
| if (hDrcDec->status != DRC_DEC_INTERPOLATION_PREPARED) |
| return DRC_DEC_NOT_READY; |
| |
| dErr = drcDec_GainDecoder_ProcessTimeDomain( |
| hDrcDec->hGainDec, delaySamples, (GAIN_DEC_LOCATION)drcLocation, |
| channelOffset, drcChannelOffset, numChannelsProcessed, |
| timeDataChannelOffset, realBuffer); |
| if (dErr) return DRC_DEC_NOT_OK; |
| |
| return DRC_DEC_OK; |
| } |
| |
| DRC_DEC_ERROR |
| FDK_drcDec_ProcessFreq(HANDLE_DRC_DECODER hDrcDec, const int delaySamples, |
| const DRC_DEC_LOCATION drcLocation, |
| const int channelOffset, const int drcChannelOffset, |
| const int numChannelsProcessed, |
| const int processSingleTimeslot, FIXP_DBL** realBuffer, |
| FIXP_DBL** imagBuffer) { |
| DRC_ERROR dErr = DE_OK; |
| |
| if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED; |
| if (!(hDrcDec->functionalRange & DRC_DEC_GAIN)) return DRC_DEC_NOT_OK; |
| if (hDrcDec->status != DRC_DEC_INTERPOLATION_PREPARED) |
| return DRC_DEC_NOT_READY; |
| |
| dErr = drcDec_GainDecoder_ProcessSubbandDomain( |
| hDrcDec->hGainDec, delaySamples, (GAIN_DEC_LOCATION)drcLocation, |
| channelOffset, drcChannelOffset, numChannelsProcessed, |
| processSingleTimeslot, realBuffer, imagBuffer); |
| if (dErr) return DRC_DEC_NOT_OK; |
| |
| return DRC_DEC_OK; |
| } |
| |
| DRC_DEC_ERROR |
| FDK_drcDec_ApplyDownmix(HANDLE_DRC_DECODER hDrcDec, int* reverseInChannelMap, |
| int* reverseOutChannelMap, FIXP_DBL* realBuffer, |
| int* pNChannels) { |
| SEL_PROC_OUTPUT* pSelProcOutput = &(hDrcDec->selProcOutput); |
| int baseChCnt = pSelProcOutput->baseChannelCount; |
| int targetChCnt = pSelProcOutput->targetChannelCount; |
| int frameSize, n, ic, oc; |
| FIXP_DBL tmp_out[8]; |
| FIXP_DBL* audioChannels[8]; |
| |
| if (hDrcDec == NULL) return DRC_DEC_NOT_OPENED; |
| if (!(hDrcDec->functionalRange & DRC_DEC_GAIN)) return DRC_DEC_NOT_OK; |
| |
| /* only downmix is performed here, no upmix. |
| Downmix is only performed if downmix coefficients are provided. |
| All other cases of downmix and upmix are treated by pcmDmx library. */ |
| if (pSelProcOutput->downmixMatrixPresent == 0) |
| return DRC_DEC_OK; /* no downmix */ |
| if (targetChCnt >= baseChCnt) return DRC_DEC_OK; /* downmix only */ |
| |
| /* sanity checks */ |
| if (realBuffer == NULL) return DRC_DEC_NOT_OK; |
| if (reverseInChannelMap == NULL) return DRC_DEC_NOT_OK; |
| if (reverseOutChannelMap == NULL) return DRC_DEC_NOT_OK; |
| if (baseChCnt > 8) return DRC_DEC_NOT_OK; |
| if (baseChCnt != *pNChannels) return DRC_DEC_NOT_OK; |
| if (targetChCnt > 8) return DRC_DEC_NOT_OK; |
| |
| frameSize = drcDec_GainDecoder_GetFrameSize(hDrcDec->hGainDec); |
| |
| for (ic = 0; ic < baseChCnt; ic++) { |
| audioChannels[ic] = &(realBuffer[ic * frameSize]); |
| } |
| |
| /* in-place downmix */ |
| for (n = 0; n < frameSize; n++) { |
| for (oc = 0; oc < targetChCnt; oc++) { |
| tmp_out[oc] = (FIXP_DBL)0; |
| for (ic = 0; ic < baseChCnt; ic++) { |
| tmp_out[oc] += |
| fMultDiv2(audioChannels[ic][n], |
| pSelProcOutput->downmixMatrix[reverseInChannelMap[ic]] |
| [reverseOutChannelMap[oc]]) |
| << 3; |
| } |
| } |
| for (oc = 0; oc < targetChCnt; oc++) { |
| if (oc >= baseChCnt) break; |
| audioChannels[oc][n] = tmp_out[oc]; |
| } |
| } |
| |
| for (oc = targetChCnt; oc < baseChCnt; oc++) { |
| FDKmemset(audioChannels[oc], 0, frameSize * sizeof(FIXP_DBL)); |
| } |
| |
| *pNChannels = targetChCnt; |
| |
| return DRC_DEC_OK; |
| } |
| |
| /* Get library info for this module. */ |
| DRC_DEC_ERROR |
| FDK_drcDec_GetLibInfo(LIB_INFO* info) { |
| int i; |
| |
| if (info == NULL) { |
| return DRC_DEC_INVALID_PARAM; |
| } |
| |
| /* Search for next free tab */ |
| for (i = 0; i < FDK_MODULE_LAST; i++) { |
| if (info[i].module_id == FDK_NONE) break; |
| } |
| if (i == FDK_MODULE_LAST) { |
| return DRC_DEC_NOT_OK; |
| } |
| |
| /* Add the library info */ |
| info[i].module_id = FDK_UNIDRCDEC; |
| info[i].version = LIB_VERSION(DRCDEC_LIB_VL0, DRCDEC_LIB_VL1, DRCDEC_LIB_VL2); |
| LIB_VERSION_STRING(info + i); |
| info[i].build_date = DRCDEC_LIB_BUILD_DATE; |
| info[i].build_time = DRCDEC_LIB_BUILD_TIME; |
| info[i].title = DRCDEC_LIB_TITLE; |
| |
| return DRC_DEC_OK; |
| } |
