Structure for configuring intra refresh mode

STRUCT MEMBERS: nSize : Size of the structure in bytes nVersion : OMX specification version information nPortIndex : Port that this structure applies to eRefreshMode : Cyclic, Adaptive, or Both nAirMBs : Number of intra macroblocks to refresh in a frame when AIR is enabled nAirRef : Number of times a motion marked macroblock has to be intra coded nCirMBs : Number of consecutive macroblocks to be coded as "intra" when CIR is enabled