1.. -*- coding: utf-8; mode: rst -*-
2
3.. _effect:
4
5************************
6Effect Devices Interface
7************************
8
9.. note::
10    This interface has been be suspended from the V4L2 API.
11    The implementation for such effects should be done
12    via mem2mem devices.
13
14A V4L2 video effect device can do image effects, filtering, or combine
15two or more images or image streams. For example video transitions or
16wipes. Applications send data to be processed and receive the result
17data either with :ref:`read() <func-read>` and
18:ref:`write() <func-write>` functions, or through the streaming I/O
19mechanism.
20
21[to do]
22