This is the interface for the LEAD Screen Capture Encoder.
|long||KeyFrameSpace||Gets or sets the number of frames between key frames (key frame spacing). For example, if the rate is 5, then a key frame is taken every 5 frames. If the value is 0, then the first frame is the only key frame in the video.|
|BYTE||QFactor||Gets or sets the quality factor for compression. The value range is between 1 and 9. Use 1 for fast compression and 9 for high compression.|
|VARIANT_BOOL||IsLEADInputPinConnected||Read only; returns TRUE if the filters input pin is connected.|
|VARIANT_BOOL||IsLEADOutputPinConnected||Read only; returns TRUE if the filters output pin is connected.|
|long||InWidth||Read only; the input stream width.|
|long||InHeight||Read only; the input stream height.|
|long||OutWidth||Read only; the output stream width.|
|long||OutHeight||Read only; the output stream height.|
|long||InBits||Read only; the input stream bits per pixel.|
|long||OutBits||Read only; the output stream bits per pixel.|
Resets the filter properties to their default values.
Calling this method can cause the filter to reconnect its output pin.
|< 0||An error occurred.|
|VFW_E_WRONG_STATE||The filter is in the wrong state.|
Forces the frame at the specified position to be a key frame.
The zero based number (position) of the frame to compress as a key frame. Use -1 to make the next passing frame a key frame. Valid values range between -1 and the total number of frames in the stream less one. Note that the filter do not know the total number of frames in the stream; so a number greater than the total number of frames in the stream will be accepted but will have no effect since it will not be reached.
The method will return S_FALSE if the frame at the specified position has already been compressed.