Fraunhofer AAC codec.

License boilerplate update to follow.

Change-Id: I2810460c11a58b6d148d84673cc031f3685e79b5

1 files changed, 277 insertions, 0 deletions

diff --git a/libMpegTPDec/include/tp_data.h b/libMpegTPDec/include/tp_data.h
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+++ b/libMpegTPDec/include/tp_data.h
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+/*****************************  MPEG-4 AAC Decoder  **************************
+
+                        (C) Copyright Fraunhofer IIS (2004)
+                               All Rights Reserved
+
+    Please be advised that this software and/or program delivery is
+    Confidential Information of Fraunhofer and subject to and covered by the
+
+    Fraunhofer IIS Software Evaluation Agreement
+    between Google Inc. and  Fraunhofer
+    effective and in full force since March 1, 2012.
+
+    You may use this software and/or program only under the terms and
+    conditions described in the above mentioned Fraunhofer IIS Software
+    Evaluation Agreement. Any other and/or further use requires a separate agreement.
+
+
+   $Id$
+   Author(s): Manuel Jander
+   Description: MPEG Transport data tables
+
+   This software and/or program is protected by copyright law and international
+   treaties. Any reproduction or distribution of this software and/or program,
+   or any portion of it, may result in severe civil and criminal penalties, and
+   will be prosecuted to the maximum extent possible under law.
+
+******************************************************************************/
+#ifndef __TP_DATA_H__
+#define __TP_DATA_H__
+
+#include "machine_type.h"
+#include "FDK_audio.h"
+#include "FDK_bitstream.h"
+
+/*
+ * Configuration
+ */
+#define TP_GA_ENABLE
+/* #define TP_CELP_ENABLE */
+/* #define TP_HVXC_ENABLE */
+/* #define TP_SLS_ENABLE */
+#define TP_ELD_ENABLE
+/* #define TP_USAC_ENABLE */
+/* #define TP_RSVD50_ENABLE */
+
+#if defined(TP_GA_ENABLE) || defined(TP_SLS_ENABLE)
+#define TP_PCE_ENABLE       /**< Enable full PCE support */
+#endif
+
+/**
+ * ProgramConfig struct.
+ */
+/* ISO/IEC 14496-3 4.4.1.1 Table 4.2 Program config element */
+#define PC_FSB_CHANNELS_MAX 16 /* Front/Side/Back channels */
+#define PC_LFE_CHANNELS_MAX 4
+#define PC_ASSOCDATA_MAX    8
+#define PC_CCEL_MAX         16 /* CC elements */
+#define PC_COMMENTLENGTH    256
+
+typedef struct
+{
+#ifdef TP_PCE_ENABLE
+  /* PCE bitstream elements: */
+  UCHAR ElementInstanceTag;
+  UCHAR Profile;
+  UCHAR SamplingFrequencyIndex;
+  UCHAR NumFrontChannelElements;
+  UCHAR NumSideChannelElements;
+  UCHAR NumBackChannelElements;
+  UCHAR NumLfeChannelElements;
+  UCHAR NumAssocDataElements;
+  UCHAR NumValidCcElements;
+
+  UCHAR MonoMixdownPresent;
+  UCHAR MonoMixdownElementNumber;
+
+  UCHAR StereoMixdownPresent;
+  UCHAR StereoMixdownElementNumber;
+
+  UCHAR MatrixMixdownIndexPresent;
+  UCHAR MatrixMixdownIndex;
+  UCHAR PseudoSurroundEnable;
+
+  UCHAR FrontElementIsCpe[PC_FSB_CHANNELS_MAX];
+  UCHAR FrontElementTagSelect[PC_FSB_CHANNELS_MAX];
+
+  UCHAR SideElementIsCpe[PC_FSB_CHANNELS_MAX];
+  UCHAR SideElementTagSelect[PC_FSB_CHANNELS_MAX];
+
+  UCHAR BackElementIsCpe[PC_FSB_CHANNELS_MAX];
+  UCHAR BackElementTagSelect[PC_FSB_CHANNELS_MAX];
+
+  UCHAR LfeElementTagSelect[PC_LFE_CHANNELS_MAX];
+
+  UCHAR AssocDataElementTagSelect[PC_ASSOCDATA_MAX];
+
+  UCHAR CcElementIsIndSw[PC_CCEL_MAX];
+  UCHAR ValidCcElementTagSelect[PC_CCEL_MAX];
+
+  UCHAR CommentFieldBytes;
+  UCHAR Comment[PC_COMMENTLENGTH];
+#endif /* TP_PCE_ENABLE */
+
+  /* Helper variables for administration: */
+  UCHAR isValid;               /*!< Flag showing if PCE has been read successfully. */
+  UCHAR NumChannels;           /*!< Amount of audio channels summing all channel elements including LFEs */
+  UCHAR NumEffectiveChannels;  /*!< Amount of audio channels summing only SCEs and CPEs */
+  UCHAR elCounter;
+
+} CProgramConfig;
+
+typedef enum {
+  ASCEXT_UNKOWN = -1,
+  ASCEXT_SBR    = 0x2b7,
+  ASCEXT_PS     = 0x548,
+  ASCEXT_MPS    = 0x76a,
+  ASCEXT_SAOC   = 0x7cb,
+  ASCEXT_LDMPS  = 0x7cc
+
+} TP_ASC_EXTENSION_ID;
+
+#ifdef TP_GA_ENABLE
+/**
+ * GaSpecificConfig struct
+ */
+typedef struct {
+  UINT m_frameLengthFlag ;
+  UINT m_dependsOnCoreCoder ;
+  UINT m_coreCoderDelay ;
+
+  UINT m_extensionFlag ;
+  UINT m_extensionFlag3 ;
+
+  UINT m_layer;
+  UINT m_numOfSubFrame;
+  UINT m_layerLength;
+
+} CSGaSpecificConfig;
+#endif /* TP_GA_ENABLE */
+
+
+
+
+#ifdef TP_ELD_ENABLE
+
+typedef enum {
+  ELDEXT_TERM  = 0x0,   /* Termination tag */
+  ELDEXT_SAOC  = 0x1,   /* SAOC config */
+  ELDEXT_LDSAC = 0x2    /* LD MPEG Surround config */
+  /* reserved */
+} ASC_ELD_EXT_TYPE;
+
+typedef struct {
+  UCHAR m_frameLengthFlag;
+
+  UCHAR m_sbrPresentFlag;
+  UCHAR m_useLdQmfTimeAlign;  /* Use LD-MPS QMF in SBR to achive time alignment */
+  UCHAR m_sbrSamplingRate;
+  UCHAR m_sbrCrcFlag;
+
+} CSEldSpecificConfig;
+#endif /* TP_ELD_ENABLE */
+
+
+
+
+/**
+ * Audio configuration struct, suitable for encoder and decoder configuration.
+ */
+typedef struct {
+
+  /* XYZ Specific Data */
+  union {
+#ifdef TP_GA_ENABLE
+    CSGaSpecificConfig    m_gaSpecificConfig;       /**< General audio specific configuration.         */
+#endif /* TP_GA_ENABLE */
+#ifdef TP_ELD_ENABLE
+    CSEldSpecificConfig   m_eldSpecificConfig;      /**< ELD specific configuration.                   */
+#endif /* TP_ELD_ENABLE */
+  } m_sc;
+  
+  /* Common ASC parameters */
+#ifdef TP_PCE_ENABLE
+  CProgramConfig        m_progrConfigElement;     /**< Program configuration.                          */
+#endif /* TP_PCE_ENABLE */
+
+  AUDIO_OBJECT_TYPE     m_aot;                    /**< Audio Object Type.                              */
+  UINT                  m_samplingFrequency;      /**< Samplerate.                                     */
+  UINT                  m_samplesPerFrame;        /**< Amount of samples per frame.                    */
+  UINT                  m_directMapping;          /**< Document this please !!                         */
+
+  AUDIO_OBJECT_TYPE     m_extensionAudioObjectType;        /**< Audio object type                      */
+  UINT                  m_extensionSamplingFrequency;      /**< Samplerate                             */  
+
+  SCHAR                 m_channelConfiguration;   /**< Channel configuration index                     */
+
+  SCHAR                 m_epConfig;               /**< Error protection index                           */
+  SCHAR                 m_vcb11Flag;              /**< aacSectionDataResilienceFlag                     */
+  SCHAR                 m_rvlcFlag;               /**< aacScalefactorDataResilienceFlag                 */
+  SCHAR                 m_hcrFlag;                /**< aacSpectralDataResilienceFlag                    */
+
+  SCHAR                 m_sbrPresentFlag;         /**< Flag indicating the presence of SBR data in the bitstream               */
+  SCHAR                 m_psPresentFlag;          /**< Flag indicating the presence of parametric stereo data in the bitstream */
+  UCHAR                 m_samplingFrequencyIndex; /**< Samplerate index                                 */
+  UCHAR                 m_extensionSamplingFrequencyIndex; /**< Samplerate index                        */
+  SCHAR                 m_extensionChannelConfiguration;   /**< Channel configuration index             */
+
+} CSAudioSpecificConfig;
+
+typedef INT (*cbUpdateConfig_t)(void*, const CSAudioSpecificConfig*);
+typedef INT (*cbSsc_t)(
+        void*, HANDLE_FDK_BITSTREAM,
+        const AUDIO_OBJECT_TYPE coreCodec,
+        const INT samplingFrequency,
+        const INT muxMode,
+        const INT configBytes
+        );
+typedef INT (*cbSbr_t)(
+        void *                  self,
+        HANDLE_FDK_BITSTREAM    hBs,
+        const INT sampleRateIn,
+        const INT sampleRateOut,
+        const INT samplesPerFrame,
+        const AUDIO_OBJECT_TYPE coreCodec,
+        const MP4_ELEMENT_ID    elementID,
+        const INT               elementIndex
+        );
+
+typedef struct  {
+  cbUpdateConfig_t cbUpdateConfig; /*!< Function pointer for Config change notify callback.  */
+  void *cbUpdateConfigData;        /*!< User data pointer for Config change notify callback. */
+  cbSsc_t cbSsc;                   /*!< Function pointer for SSC parser callback. */
+  void *cbSscData;                 /*!< User data pointer for SSC parser callback. */
+  cbSbr_t cbSbr;                   /*!< Function pointer for SBR header parser callback. */
+  void *cbSbrData;                 /*!< User data pointer for SBR header parser callback. */
+} CSTpCallBacks;
+
+static const UINT SamplingRateTable[] = 
+{ 96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350, 0, 0,
+  0
+};
+
+static inline
+int getSamplingRateIndex( UINT samplingRate )
+{
+  UINT sf_index, tableSize=sizeof(SamplingRateTable)/sizeof(UINT);
+
+  for (sf_index=0; sf_index<tableSize; sf_index++) {
+    if( SamplingRateTable[sf_index] == samplingRate ) break;
+  }
+
+  if (sf_index>tableSize-1) {
+    return tableSize-1;
+  }
+
+  return sf_index;
+}
+
+/*
+ * Get Channel count from channel configuration
+ */
+static inline int getNumberOfTotalChannels(int channelConfig)
+{
+  if (channelConfig > 0 && channelConfig < 8)
+    return (channelConfig == 7)?8:channelConfig;
+  else
+    return 0;
+}
+
+static inline
+int getNumberOfEffectiveChannels(const int channelConfig)
+{
+  const int n[] = {0,1,2,3,4,5,5,7};
+  return n[channelConfig];
+}
+
+#endif /* __TP_DATA_H__ */