GOP Specifies the group of pictures as a unit for video adaptation. VideoFrame Specifies the video frame as a unit for video adaptation. VideoField Specifies the video field as a unit for video adaptation. Slice Specifies the slice as a unit for video adaptation. Macroblock Specifies the 16x16 macroblock combining all color components as a unit for image or video adaptation. Block Specifies the 8x8 block for a single component as a unit for image or video adaptation. Tile Specifies the Tile as a unit for ISO/IEC 15444-1 image adaptation. VideoObjectPlane Specifies the ISO/IEC 14496-2 Video Object Plane (VOP) as a unit for video adaptation. VideoObject Specifies the ISO/IEC 14496-2 Video Object (VO) as a unit for video adaptation. VideoObjectLayer Specifies the ISO/IEC 14496-2 Video Object Layer (VOL) as a unit for video adaptation. AudioFrame Specifies the audio/speech frame as a unit for audio/speech adaptation. AudioChannel Specifies the audio channel as a unit for audio/speech adaptation. ROI Specifies the region of interest as a unit for image adaptation. Component Specifies a component in a multi-component bit-stream as a unit for adaptation Generic2DSpatialUnit Specifies a generic 2D spatial unit as a unit for adaptation Generic3DSpatialUnit Specifies a generic 3D spatial unit as a unit for adaptation GenericTemporalUnit Specifies a generic temporal unit as a unit for adaptation Generic2DSpatioTemporalUnit Specifies a generic 3D spatio-temporal unit as a unit for adaptation Generic3DSpatioTemporalUnit Specifies a generic 2D spatio-temporal unit as a unit for adaptation