Frame Stepping Property Set
Decoders that implement frame-accurate seeking under Microsoft® DirectShow® must implement the AM_KSPROPSETID_FrameStep property set, which is used in conjunction with the IVideoFrameStep interface.
|Property Set GUID
||Instructs the decoder to begin a step operation and passes an AM_PROPERTY_FRAMESTEP structure that specifies the number of steps.
||Instructs the decoder to cancel the current step operation. No instance data is associated with this property.
||The decoder returns S_OK on this instruction to indicate that it can perform frame stepping, S_FALSE otherwise. No instance data is passed when this property is set.
||The decoder returns S_OK on this instruction to indicate that it can step multiple frames at a time, S_FALSE otherwise. No instance data is passed when this property is set.