| Microsoft DirectX 8.1 (C++) |
Description
Video source filter that produces an image of a bouncing ball. This sample illustrates format negotiation and the use of the source filter base classes CSource and CSourceStream.
Path
Source: (SDK root)\Samples\Multimedia\DirectShow\Filters\Ball
User's Guide
The code in Fball.h and Fball.cpp manages the filter interfaces. Those two files contain approximately the minimum code required for a source filter. The Ball.h and Ball.cpp files contain the code that bounces the ball.
This filter has a single output pin, which provides a video stream that shows a ball bouncing around in the frame. The Ball filter also accepts quality management requests from the downstream filter, which illustrates a simple quality management strategy. This filter implements the IQualityControl interface for that purpose.