Using the VMR for DirectShow Filter Developers

This topic applies to Windows XP Home Edition and Windows XP Professional only.

This topic contains the following sections:

• Requirements for Decoders
• Stream Control
• Quality Messages
• Coordinate Mapping in the VMR
• MPEG Decoder Preprocessing Transformations
• Access to DirectDraw Surfaces
• VMR Support for DirectX Video Acceleration
• Working with DirectX7 D3D Render Targets
• Per-Pixel Alpha Blending
• DirectDraw Exclusive Mode
• Optimizing Mixing Performance