Using the VMR for DirectShow Filter Developers
[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
This topic contains the following sections:
- Requirements for Decoders
- Stream Control
- Coordinate Mapping in the VMR
- MPEG Decoder Preprocessing Transformations
- Access to DirectDraw Surfaces
- VMR Support for DirectX Video Acceleration
- Working with Direct3D Render Targets
- Per-Pixel Alpha Blending
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