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authorMatthias P. Braendli <matthias.braendli@mpb.li>2020-03-31 10:03:58 +0200
committerMatthias P. Braendli <matthias.braendli@mpb.li>2020-03-31 10:03:58 +0200
commita1eb6cf861d3c1cbd4e6c016be3cbd2a1e3d797d (patch)
tree2b4790eec8f47fb086e645717f07c53b30ace919 /fdk-aac/libSACenc/src/sacenc_bitstream.h
parent2f84a54ec1d10b10293c7b1f4ab9fee31f3c6327 (diff)
parentc6a73c219dbfdfe639372d9922f4eb512f06fa2f (diff)
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+/* -----------------------------------------------------------------------------
+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 surround encoder library *************************
+
+ Author(s):
+
+ Description: Encoder Library Interface
+ Bitstream Writer
+
+*******************************************************************************/
+
+#ifndef SACENC_BITSTREAM_H
+#define SACENC_BITSTREAM_H
+
+/* Includes ******************************************************************/
+#include "FDK_bitstream.h"
+#include "FDK_matrixCalloc.h"
+#include "sacenc_lib.h"
+#include "sacenc_const.h"
+
+/* Defines *******************************************************************/
+#define MAX_NUM_BINS 23
+#define MAX_NUM_PARAMS 2
+#define MAX_NUM_OUTPUTCHANNELS SACENC_MAX_OUTPUT_CHANNELS
+#define MAX_TIME_SLOTS 32
+
+typedef enum {
+ TREE_212 = 7,
+ TREE_ESCAPE = 15
+
+} TREECONFIG;
+
+typedef enum {
+ FREQ_RES_40 = 0,
+ FREQ_RES_20 = 1,
+ FREQ_RES_10 = 2,
+ FREQ_RES_5 = 3
+
+} FREQ;
+
+typedef enum {
+ QUANTMODE_INVALID = -1,
+ QUANTMODE_FINE = 0,
+ QUANTMODE_EBQ1 = 1,
+ QUANTMODE_EBQ2 = 2
+
+} QUANTMODE;
+
+typedef enum {
+ TEMPSHAPE_OFF = 0
+
+} TEMPSHAPECONFIG;
+
+typedef enum {
+ FIXEDGAINDMX_INVALID = -1,
+ FIXEDGAINDMX_0 = 0,
+ FIXEDGAINDMX_1 = 1,
+ FIXEDGAINDMX_2 = 2,
+ FIXEDGAINDMX_3 = 3,
+ FIXEDGAINDMX_4 = 4,
+ FIXEDGAINDMX_5 = 5,
+ FIXEDGAINDMX_6 = 6,
+ FIXEDGAINDMX_7 = 7
+
+} FIXEDGAINDMXCONFIG;
+
+typedef enum {
+ DECORR_INVALID = -1,
+ DECORR_QMFSPLIT0 = 0, /* QMF splitfreq: 3, 15, 24, 65 */
+ DECORR_QMFSPLIT1 = 1, /* QMF splitfreq: 3, 50, 65, 65 */
+ DECORR_QMFSPLIT2 = 2 /* QMF splitfreq: 0, 15, 65, 65 */
+
+} DECORRCONFIG;
+
+typedef enum {
+ DEFAULT = 0,
+ KEEP = 1,
+ INTERPOLATE = 2,
+ FINECOARSE = 3
+
+} DATA_MODE;
+
+typedef enum {
+ READ_SPATIALFRAME = 0,
+ WRITE_SPATIALFRAME = 1
+
+} SPATIALFRAME_TYPE;
+
+/* Data Types ****************************************************************/
+typedef struct {
+ INT numOttBoxes;
+ INT numInChan;
+ INT numOutChan;
+
+} TREEDESCRIPTION;
+
+typedef struct {
+ INT bsOttBands;
+
+} OTTCONFIG;
+
+typedef struct {
+ INT bsSamplingFrequency; /* for bsSamplingFrequencyIndex */
+ INT bsFrameLength;
+ INT numBands; /* for bsFreqRes */
+ TREECONFIG bsTreeConfig;
+ QUANTMODE bsQuantMode;
+ FIXEDGAINDMXCONFIG bsFixedGainDMX;
+ int bsEnvQuantMode;
+ DECORRCONFIG bsDecorrConfig;
+ TREEDESCRIPTION treeDescription;
+ OTTCONFIG ottConfig[SACENC_MAX_NUM_BOXES];
+
+} SPATIALSPECIFICCONFIG;
+
+typedef struct {
+ UCHAR bsFramingType;
+ UCHAR numParamSets;
+ UCHAR bsParamSlots[MAX_NUM_PARAMS];
+
+} FRAMINGINFO;
+
+typedef struct {
+ SCHAR cld[SACENC_MAX_NUM_BOXES][MAX_NUM_PARAMS][MAX_NUM_BINS];
+ SCHAR icc[SACENC_MAX_NUM_BOXES][MAX_NUM_PARAMS][MAX_NUM_BINS];
+
+} OTTDATA;
+
+typedef struct {
+ UCHAR bsSmoothMode[MAX_NUM_PARAMS];
+ UCHAR bsSmoothTime[MAX_NUM_PARAMS];
+ UCHAR bsFreqResStride[MAX_NUM_PARAMS];
+ UCHAR bsSmgData[MAX_NUM_PARAMS][MAX_NUM_BINS];
+
+} SMGDATA;
+
+typedef struct {
+ UCHAR bsEnvShapeChannel[MAX_NUM_OUTPUTCHANNELS];
+ UCHAR bsEnvShapeData[MAX_NUM_OUTPUTCHANNELS][MAX_TIME_SLOTS];
+
+} TEMPSHAPEDATA;
+
+typedef struct {
+ UCHAR bsXXXDataMode[SACENC_MAX_NUM_BOXES][MAX_NUM_PARAMS];
+ UCHAR bsDataPair[SACENC_MAX_NUM_BOXES][MAX_NUM_PARAMS];
+ UCHAR bsQuantCoarseXXX[SACENC_MAX_NUM_BOXES][MAX_NUM_PARAMS];
+ UCHAR bsFreqResStrideXXX[SACENC_MAX_NUM_BOXES][MAX_NUM_PARAMS];
+
+} LOSSLESSDATA;
+
+typedef struct {
+ FRAMINGINFO framingInfo;
+ UCHAR bsIndependencyFlag;
+ OTTDATA ottData;
+ SMGDATA smgData;
+ TEMPSHAPEDATA tempShapeData;
+ LOSSLESSDATA CLDLosslessData;
+ LOSSLESSDATA ICCLosslessData;
+ UCHAR bUseBBCues;
+
+} SPATIALFRAME;
+
+typedef struct BSF_INSTANCE *HANDLE_BSF_INSTANCE;
+
+/* Constants *****************************************************************/
+
+/* Function / Class Declarations *********************************************/
+/* destroy encoder instance */
+FDK_SACENC_ERROR fdk_sacenc_destroySpatialBitstreamEncoder(
+ HANDLE_BSF_INSTANCE *selfPtr);
+
+/* create encoder instance */
+FDK_SACENC_ERROR fdk_sacenc_createSpatialBitstreamEncoder(
+ HANDLE_BSF_INSTANCE *selfPtr);
+
+FDK_SACENC_ERROR fdk_sacenc_initSpatialBitstreamEncoder(
+ HANDLE_BSF_INSTANCE selfPtr);
+
+/* get SpatialSpecificConfig struct */
+SPATIALSPECIFICCONFIG *fdk_sacenc_getSpatialSpecificConfig(
+ HANDLE_BSF_INSTANCE selfPtr);
+
+/* write SpatialSpecificConfig to stream */
+FDK_SACENC_ERROR fdk_sacenc_writeSpatialSpecificConfig(
+ SPATIALSPECIFICCONFIG *const spatialSpecificConfig,
+ UCHAR *const pOutputBuffer, const INT outputBufferSize,
+ INT *const pnOutputBits);
+
+/* get SpatialFrame struct */
+SPATIALFRAME *fdk_sacenc_getSpatialFrame(HANDLE_BSF_INSTANCE selfPtr,
+ const SPATIALFRAME_TYPE frameType);
+
+/* write frame data to stream */
+FDK_SACENC_ERROR fdk_sacenc_writeSpatialFrame(UCHAR *const pOutputBuffer,
+ const INT outputBufferSize,
+ INT *const pnOutputBits,
+ HANDLE_BSF_INSTANCE selfPtr);
+
+/* Copy/Save spatial frame data for one parameter set */
+FDK_SACENC_ERROR fdk_sacenc_duplicateParameterSet(
+ const SPATIALFRAME *const hFrom, const INT setFrom, SPATIALFRAME *const hTo,
+ const INT setTo);
+
+#endif /* SACENC_BITSTREAM_H */