InitialObjectDescriptor { objectDescriptorID 1 esDescr [ ES_Descriptor { ES_ID 1 decConfigDescr DecoderConfigDescriptor { objectTypeIndication 1 streamType 3 decSpecificInfo BIFSConfig { isCommandStream true pixelMetric true pixelWidth 300 pixelHeight 300 } } } ] } OrderedGroup { children [ Background2D { backColor 1 1 0 } WorldInfo { info ["This shows scene replacement" "through BIFS commands" "GPAC Regression Tests" "(C) 2002-2004 GPAC Team"] title "scene replace test" } ] } AT 2000 { REPLACE SCENE BY NULL }