IAMDroppedFrames Interface
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4/8/2010
This interface retrieves performance information from a video capture filter, such as how many frames were dropped and how many frames were delivered. Applications can use this interface to determine capture performance at run-time.
In addition to the methods inherited from IUnknown, the IAMDroppedFrames interface exposes the following methods.
| Method | Description |
|---|---|
Retrieves the average size of the frames that the filter has captured. |
|
Retrieves an array of frame numbers that were dropped. |
|
Retrieves the total number of frames that the filter has dropped since it started streaming. |
|
Retrieves the total number of frames that the filter has delivered since it started streaming. |
Remarks
Some filters that expose this interface do not implement the GetDroppedInfo or GetAverageFrameSize method.
A video capture filter automatically exposes this interface if the driver supports the PROPSETID_VIDCAP_DROPPEDFRAMES property set.**