What is GraphEdit?

It is a visual tool provided as an executable with DirectX SDK for building and testing filter graphs. A filter graph is a collection of filter objects which are used to convert Data from one streaming format to another format. The following diagram depicts a filter graph that can render an Audio-Video Interleaved (AVI) file.

In this diagram, the AVI source filter reads the file from disk. The AVI decompressor filter (codec) decompresses the video data as it is passed from the source filter. The codec filter then passes this data to the video renderer. The video renderer, in turn, passes the data to the device in a format that the device understands. The AVI source filter passes the audio data directly to the audio renderer, which in turn passes the data to the audio device. With GraphEdit, one can quickly build and test filter graphs to see if they function to your expectations. You can even view a filter graph created by an application running in another process. GraphEdit uses a custom persistence format. This format is not supported for application use, but it is helpful for testing and debugging your application.

FAQ Menu

 

Advertisement

Free Magazine