ViewCast Osprey PCI, Руководство пользователя

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Osprey PCI User Guide
ViewCast 35
Filters tab
The Filters tab (Figure 24) covers two independent technologies: SimulStream and Deinterlacing.
Functionality for both technologies exists on the filter tab.
Figure 24. Filters tab
From a practical point of view, filters have two interrelated purposes:

They allow applications to enumerate and list DirectShow video capture and preview pins or
streams (each with different settings) as named entries in their video device select list. You can set
up the driver to show 1 to 10 filters per device. Each filter has one preview pin and one capture pin.
Standard applications can access a particular filter without any custom programming specialized for
Osprey devices.

Each filter has independent settings for cropping, default output size, logos, and captions that can
be stored between sessions. Compared to the previous pin-based method, there are no
requirements for a particular startup order, in order to associate settings with instantiations.