diff options
author | Hans Verkuil <hverkuil@xs4all.nl> | 2015-03-15 17:51:54 -0300 |
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committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-04-02 21:13:21 -0300 |
commit | 3c828ff8965630c757cceab8acfac060aa4da69f (patch) | |
tree | 8afc90a198a7710d0b7afdaaf77727b50852cb87 /Documentation/DocBook/media/v4l | |
parent | 82bdb26abcae2988c74be29203caf23dabbe4be3 (diff) | |
download | lwn-3c828ff8965630c757cceab8acfac060aa4da69f.tar.gz lwn-3c828ff8965630c757cceab8acfac060aa4da69f.zip |
[media] DocBook media: fix VIDIOC_CROPCAP type description
The type field of VIDIOC_CROPCAP does not allow the MPLANE variants, just
as all the other crop/selection related ioctls.
Fix the description of CROPCAP and G_CROP and make the text describing
this consistent for all selection ioctls.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'Documentation/DocBook/media/v4l')
-rw-r--r-- | Documentation/DocBook/media/v4l/vidioc-cropcap.xml | 9 | ||||
-rw-r--r-- | Documentation/DocBook/media/v4l/vidioc-g-crop.xml | 5 | ||||
-rw-r--r-- | Documentation/DocBook/media/v4l/vidioc-g-selection.xml | 4 |
3 files changed, 13 insertions, 5 deletions
diff --git a/Documentation/DocBook/media/v4l/vidioc-cropcap.xml b/Documentation/DocBook/media/v4l/vidioc-cropcap.xml index 1f5ed64cd75a..50cb940cbe5c 100644 --- a/Documentation/DocBook/media/v4l/vidioc-cropcap.xml +++ b/Documentation/DocBook/media/v4l/vidioc-cropcap.xml @@ -59,6 +59,11 @@ constant except when switching the video standard. Remember this switch can occur implicit when switching the video input or output.</para> +<para>Do not use the multiplanar buffer types. Use <constant>V4L2_BUF_TYPE_VIDEO_CAPTURE</constant> +instead of <constant>V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE</constant> +and use <constant>V4L2_BUF_TYPE_VIDEO_OUTPUT</constant> instead of +<constant>V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE</constant>.</para> + <para>This ioctl must be implemented for video capture or output devices that support cropping and/or scaling and/or have non-square pixels, and for overlay devices.</para> @@ -73,9 +78,7 @@ support cropping and/or scaling and/or have non-square pixels, and for overlay d <entry>Type of the data stream, set by the application. Only these types are valid here: <constant>V4L2_BUF_TYPE_VIDEO_CAPTURE</constant>, -<constant>V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE</constant>, -<constant>V4L2_BUF_TYPE_VIDEO_OUTPUT</constant>, -<constant>V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE</constant> and +<constant>V4L2_BUF_TYPE_VIDEO_OUTPUT</constant> and <constant>V4L2_BUF_TYPE_VIDEO_OVERLAY</constant>. See <xref linkend="v4l2-buf-type" />.</entry> </row> <row> diff --git a/Documentation/DocBook/media/v4l/vidioc-g-crop.xml b/Documentation/DocBook/media/v4l/vidioc-g-crop.xml index 75c6a93de3c1..e6c4efb9e8b4 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-crop.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-crop.xml @@ -70,6 +70,11 @@ structure or returns the &EINVAL; if cropping is not supported.</para> <constant>VIDIOC_S_CROP</constant> ioctl with a pointer to this structure.</para> +<para>Do not use the multiplanar buffer types. Use <constant>V4L2_BUF_TYPE_VIDEO_CAPTURE</constant> +instead of <constant>V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE</constant> +and use <constant>V4L2_BUF_TYPE_VIDEO_OUTPUT</constant> instead of +<constant>V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE</constant>.</para> + <para>The driver first adjusts the requested dimensions against hardware limits, &ie; the bounds given by the capture/output window, and it rounds to the closest possible values of horizontal and diff --git a/Documentation/DocBook/media/v4l/vidioc-g-selection.xml b/Documentation/DocBook/media/v4l/vidioc-g-selection.xml index 9c04ac8661b1..0bb5c060db27 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-selection.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-selection.xml @@ -60,8 +60,8 @@ <para>To query the cropping (composing) rectangle set &v4l2-selection; <structfield> type </structfield> field to the respective buffer type. -Do not use multiplanar buffers. Use <constant>V4L2_BUF_TYPE_VIDEO_CAPTURE</constant> -instead of <constant>V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE</constant>. Use +Do not use the multiplanar buffer types. Use <constant>V4L2_BUF_TYPE_VIDEO_CAPTURE</constant> +instead of <constant>V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE</constant> and use <constant>V4L2_BUF_TYPE_VIDEO_OUTPUT</constant> instead of <constant>V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE</constant>. The next step is setting the value of &v4l2-selection; <structfield>target</structfield> field |