1 .. -*- coding: utf-8; mode: rst -*-
8 The V4L2 API was primarily designed for devices exchanging image data
9 with applications. The struct :c:type:`v4l2_pix_format` and
10 struct :c:type:`v4l2_pix_format_mplane` structures define the
11 format and layout of an image in memory. The former is used with the
12 single-planar API, while the latter is used with the multi-planar
13 version (see :ref:`planar-apis`). Image formats are negotiated with
14 the :ref:`VIDIOC_S_FMT <VIDIOC_G_FMT>` ioctl. (The explanations here
15 focus on video capturing and output, for overlay frame buffer formats
16 see also :ref:`VIDIOC_G_FBUF <VIDIOC_G_FBUF>`.)