--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/videoeditorengine/audioeditorengine/codecs/MP4/inc/mp4aud.h	Fri Jan 29 14:08:33 2010 +0200
@@ -0,0 +1,208 @@
+/*
+* Copyright (c) 2010 Ixonos Plc.
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - Initial contribution
+*
+* Contributors:
+* Ixonos Plc
+*
+* Description:
+*
+*/
+
+
+/**************************************************************************
+  mp4aud.h - MPEG-4 Audio structures and interface methods.
+
+  Author(s): Juha Ojanpera
+  Copyright (c) 2001-2004 by Nokia Research Center, Speech and Audio Systems.
+  *************************************************************************/
+
+#ifndef MP4AUD_H_
+#define MP4AUD_H_
+
+/*-- Project Headers. --*/
+#include "nok_bits.h"
+#include "chandefs.h"
+
+/*-- Raw bitstream constants. --*/
+//#define LEN_PC_COMM       (8)
+
+/*-- Program configuration element --*/
+/*
+#define LEN_BYTE          (8)
+#define LEN_TAG           (4)
+#define LEN_PROFILE       (2) 
+#define LEN_SAMP_IDX      (4) 
+#define LEN_NUM_ELE       (4) 
+#define LEN_NUM_LFE       (2) 
+#define LEN_NUM_DAT       (3) 
+#define LEN_NUM_CCE       (4) 
+#define LEN_MMIX_IDX      (2) 
+#define LEN_PSUR_ENAB     (1) 
+#define LEN_ELE_IS_CPE    (1)
+#define LEN_IND_SW_CCE    (1)  
+#define LEN_COMMENT_BYTES (8)
+*/
+/*
+   Purpose:     MPEG-4 Audio object types.
+   Explanation: - */
+typedef enum AudioObjectType
+{
+  NULL_OBJECT = -1,
+  AAC_MAIN,
+  AAC_LC,
+  AAC_SSR,
+  AAC_LTP,
+  AAC_SBR,
+  AAC_SCALABLE,
+  TWINVQ,
+  CELP,
+  HVXC,
+  RESERVED10,
+  RESERVED11,
+  TTSI = 11,
+  MAIN_SYNTHETIC,
+  WAVETABLE_SYNTHESIS,
+  GENERAL_MIDI,
+  AUDIO_FX,
+  ER_AAC_LC, 
+  RESERVED18, 
+  ER_AAC_LTP, 
+  ER_AAC_SCALABLE, 
+  ER_TWINVQ,
+  ER_BSAC, 
+  ER_AAC_LD, 
+  ER_CELP, 
+  ER_HVXC, 
+  ER_HILN,
+  ER_PARAMETRIC, 
+  RESERVED28, 
+  RESERVED29, 
+  RESERVED30, 
+  RESERVED31
+
+} AudioObjectType;
+
+/*
+   Purpose:     Configuration information for MPEG-4 GA coder.
+   Explanation: - */
+typedef struct GaSpecificInfoStr
+{
+  /*-- Common to all object types. --*/
+  BOOL FrameLengthFlag;
+  BOOL DependsOnCoreCoder;
+  int16 CoreCoderDelay;
+
+  /*-- AAC Scalable parameters. --*/
+  uint8 layerNr;
+
+  /*-- ER BSAC parameters. --*/
+  uint8 numOfSubframe;
+  int16 layer_length;
+
+  /*-- ER object specific data. --*/
+  BOOL aacSectionDataResilienceFlag;
+  BOOL aacScalefactorDataResilienceFlag;
+  BOOL aacSpectralDataResilienceFlag;
+  
+  /*-- Future extension flag. --*/
+  BOOL extensionFlag3;
+
+} GaSpecificInfo;
+
+/*
+   Purpose:     Configuration information for MPEG-4 audio coder.
+   Explanation: - */
+typedef struct AudioSpecificInfoStr
+{
+  AudioObjectType audioObject; /* Object type.                            */
+  uint8 samplingFreqIdx;       /* Index to sampling frequency table.      */
+  int32 samplingFrequency;     /* Sampling frequency if not in the table. */
+  uint8 channelConfiguration;  /* Index to channel configuration table.   */
+  GaSpecificInfo gaInfo;       /* Config information for GA coder.        */
+
+  AudioObjectType extAudioObject;
+  int16 syncExtensionType;
+  int32 extSamplingFrequency;
+  uint8 extSamplingFreqIdx;
+  uint8 sbrPresentFlag;
+
+} AudioSpecificInfo;
+
+/*
+   Purpose:     Information about the audio channel.
+   Explanation: - */
+typedef struct 
+{
+  int16 num_ele;
+  int16 ele_is_cpe[1 << LEN_TAG];
+  int16 ele_tag[1 << LEN_TAG];
+
+} EleList;
+
+/*
+   Purpose:     Mixing information for downmixing multichannel input
+                into two-channel output.
+   Explanation: - */
+typedef struct 
+{
+  int16 present;
+  int16 ele_tag;
+  int16 pseudo_enab;
+
+} MIXdown;
+
+/*
+   Purpose:     Program configuration element.
+   Explanation: - */
+typedef struct 
+{
+  int16 tag;
+  int16 profile;
+  int16 sample_rate_idx;
+
+  BOOL pce_present;
+
+  EleList front;
+  EleList side;
+  EleList back;
+  EleList lfe;
+  EleList data;
+  EleList coupling;
+
+  MIXdown mono_mix;
+  MIXdown stereo_mix;
+  MIXdown matrix_mix;
+
+  int16 num_comment_bytes;
+  char comments[(1 << LEN_PC_COMM) + 1];
+
+} ProgConfig;
+
+/*
+   Purpose:     MPEG-4 AAC transport handle.
+   Explanation: - */
+typedef struct mp4AACTransportHandleStr
+{
+  ProgConfig progCfg;
+  AudioSpecificInfo audioInfo;
+
+} mp4AACTransportHandle;
+
+
+/*-- Access methods. --*/
+
+BOOL
+ReadMP4AudioConfig(uint8 *buffer, uint32 bufLen, mp4AACTransportHandle *mp4AAC_ff);
+
+void
+WriteMP4AudioConfig(uint8 *buffer, uint32 bufLen, mp4AACTransportHandle *mp4AAC_ff);
+
+#endif /*-- MP4AUD_H_ --*/