User`s manual

54 Programming Guide
Use COM interfaces
It is standard practice to use the standard DirectShow inter-
faces defined for A/V capture filter and output pin to retrieve
and set video configurations. However, due to a known issue in
the ADLINK Hardware MPEG4 device driver, the programmer
has to use a proprietary interface, IGOChip in addition to the
standard interfaces. Details about the IGOChip interface and a
sample code are provided in the Reference Manual.