The IGetFrame interface supports extracting, decompressing, and displaying individual frames from an open stream. Uses IUnknown::QueryInterface, IUnknown::AddRef, IUnknown::Release in addition to the following custom methods:
Method | Description |
Begin | Prepares to extract and decompress copies of video frames from a stream. |
End | Ends frame extraction and decompression. |
GetFrame | Retrieves a decompressed copy of a frame from a stream. |
SetFormat | Sets the image format of the frames being extracted. |
Custom File and Stream Handlers Overview, Custom File and Stream Handler Interfaces