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ISO/IEC 14496-3:2009(E)
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© ISO/IEC 2009— All rights reserved
Content for Subpart 1
1.1 Scope ..............................................................................................................................................................3
1.2 Normative references ....................................................................................................................................3
1.3 Terms and definitions ...................................................................................................................................4
1.4 Symbols and abbreviations........................................................................................................................16
1.4.1 Arithmetic operators ...................................................................................................................................16
1.4.2 Logical operators.........................................................................................................................................17
1.4.3 Relational operators ....................................................................................................................................17
1.4.4 Bitwise operators.........................................................................................................................................18
1.4.5 Assignment ..................................................................................................................................................18
1.4.6 Mnemonics ...................................................................................................................................................18
1.4.7 Constants .....................................................................................................................................................18
1.4.8 Method of describing bitstream payload syntax ......................................................................................19
1.4.9 Arithmetic data types ..................................................................................................................................20
1.5 Technical overview......................................................................................................................................21
1.5.1 MPEG-4 audio object types ........................................................................................................................21
1.5.2 Audio profiles and levels ............................................................................................................................26
1.6 Interface to ISO/IEC 14496-1 (MPEG-4 Systems)......................................................................................38
1.6.1 Introduction..................................................................................................................................................38
1.6.2 Syntax ...........................................................................................................................................................38
1.6.3 Semantics .....................................................................................................................................................44
1.6.4 Upstream ......................................................................................................................................................48
1.6.5 Signaling of SBR..........................................................................................................................................50
1.6.6 Signaling of Parametric Stereo (PS) ..........................................................................................................53
1.6.7 Interface between Audio and Systems......................................................................................................57
1.6.8 Signalling of BSAC extension payloads ...................................................................................................58
1.6.9 Original Audio File Information for the ISO Base Media file format .......................................................59
1.7 MPEG-4 Audio transport stream ................................................................................................................63
1.7.1 Overview .......................................................................................................................................................63
1.7.2 Synchronization Layer ................................................................................................................................64
1.7.3 Multiplex Layer.............................................................................................................................................67
1.8 Error protection............................................................................................................................................78
1.8.1 Overview of the tools ..................................................................................................................................78
1.8.2 Syntax ...........................................................................................................................................................82
1.8.3 General information.....................................................................................................................................85
1.8.4 Tool description ...........................................................................................................................................88
Annex 1.A (informative) Audio Interchange Formats ..........................................................................................106
1.A.1 Introduction................................................................................................................................................106
1.A.2 AAC Interchange formats .........................................................................................................................106
1.A.3 Syntax .........................................................................................................................................................106
1.A.4 Semantic .....................................................................................................................................................109
Annex 1.B (informative) Error protection tool ......................................................................................................111
1.B.1 Example of out-of-band information........................................................................................................111
1.B.2 Example of error concealment .................................................................................................................114
1.B.3 Example of EP tool setting and error concealment for HVXC ..............................................................119
Annex 1.C (informative) Patent statements ..........................................................................................................135
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