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- .. -*- coding: utf-8; mode: rst -*-
- .. _effect:
- ************************
- Effect Devices Interface
- ************************
- .. note::
- This interface has been be suspended from the V4L2 API.
- The implementation for such effects should be done
- via mem2mem devices.
- 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 :ref:`read() <func-read>` and
- :ref:`write() <func-write>` functions, or through the streaming I/O
- mechanism.
- [to do]
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