Effect Devices Interface

Video for Linux Two API Specification: Revision 0.24
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# 4.6. Effect Devices Interface

> Suspended: This interface has been be suspended from the V4L2 API implemented in Linux 2.6 until we have more experience with effect device interfaces.

A V4L2 video effect device can do image effects, filtering, or combine two or more images or image streams. For example video transitions or wipes. Applications send data to be processed and receive the result data either with `read()` and `write()` functions, or through the streaming I/O mechanism.

[to do]

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