This structure contains information used on an MMIOM_COMPRESS and MMIOM_CODEC_COMPRESS message call to a CODEC. It defines CODEC-specific control information. The pRunTimeInfo field of the MMCOMPRESS structure points to this structure.
typedef struct _MMVIDEOCOMPRESS { ULONG ulStructLen; /* Structure length. */ GENPAL genpalVideo; /* Video stream palette. */ PVOID pControlHdr; /* Control header. */ } MMVIDEOCOMPRESS; typedef MMVIDEOCOMPRESS * PMMVIDEOCOMPRESS ;