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MPEG-4 Book, The by Touradj Ebrahimi, Fernando Pereira

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D.5. Core 2D Profile

The Core 2D scene graph profile includes basic 2D composition, 2D texturing, local interaction, local animation, BIFS updates, quantization, and access to Web links and subscenes, in addition to audio and visual elements. It also introduces tools such as back channel (ServerCommand) and VoD features (MediaControl and MediaSensor).

Level 1

The restrictions listed in Table D.8 apply for the Core 2D scene graph profile at Level 1 [N4408].

Table D.7. Restrictions for Level 1 of the Basic 2D profile
NodesRestrictions
OrderedGroupaddChildren and removeChildren not supported

2 children maximum allowed

Only 1 OrderedGroup node per scene used as top node
Sound2Dintensity, spatialize, location not supported
AudioSourceaddChildren, removeChildren ...

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