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authorHans Verkuil <hverkuil@xs4all.nl>2015-03-19 11:31:10 -0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-04-02 22:07:53 -0300
commit486e56be5274848fb1adc68a39a5b4e69cab8ca8 (patch)
tree5d30cd38ed4072e6b57b763b3c4d593e6cb1b818 /Documentation/DocBook
parentb766586b1a87c5417ee6d1f3806f06ccfc335277 (diff)
downloadkernel-486e56be5274848fb1adc68a39a5b4e69cab8ca8.tar.gz
[media] DocBook media: fix BT.2020 description
One number was wrong (0.6789 -> 0.6780) and Y' should have been Yc'. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'Documentation/DocBook')
-rw-r--r--Documentation/DocBook/media/v4l/pixfmt.xml8
1 files changed, 4 insertions, 4 deletions
diff --git a/Documentation/DocBook/media/v4l/pixfmt.xml b/Documentation/DocBook/media/v4l/pixfmt.xml
index c6a578fa8f29..0a1528f3e891 100644
--- a/Documentation/DocBook/media/v4l/pixfmt.xml
+++ b/Documentation/DocBook/media/v4l/pixfmt.xml
@@ -1026,7 +1026,7 @@ The chromaticities of the primary colors and the white reference are:</para>
<term>The luminance (Y') and color difference (Cb and Cr) are obtained with the
following <constant>V4L2_YCBCR_ENC_BT2020</constant> encoding:</term>
<listitem>
- <para>Y'&nbsp;=&nbsp;0.2627R'&nbsp;+&nbsp;0.6789G'&nbsp;+&nbsp;0.0593B'</para>
+ <para>Y'&nbsp;=&nbsp;0.2627R'&nbsp;+&nbsp;0.6780G'&nbsp;+&nbsp;0.0593B'</para>
<para>Cb&nbsp;=&nbsp;-0.1396R'&nbsp;-&nbsp;0.3604G'&nbsp;+&nbsp;0.5B'</para>
<para>Cr&nbsp;=&nbsp;0.5R'&nbsp;-&nbsp;0.4598G'&nbsp;-&nbsp;0.0402B'</para>
</listitem>
@@ -1040,7 +1040,7 @@ clamped to the range [-0.5&hellip;0.5]. The Y'CbCr quantization is limited range
<varlistentry>
<term>Luma:</term>
<listitem>
- <para>Yc'&nbsp;=&nbsp;(0.2627R&nbsp;+&nbsp;0.6789G&nbsp;+&nbsp;0.0593B)'</para>
+ <para>Yc'&nbsp;=&nbsp;(0.2627R&nbsp;+&nbsp;0.6780G&nbsp;+&nbsp;0.0593B)'</para>
</listitem>
</varlistentry>
</variablelist>
@@ -1048,7 +1048,7 @@ clamped to the range [-0.5&hellip;0.5]. The Y'CbCr quantization is limited range
<varlistentry>
<term>B'&nbsp;-&nbsp;Yc'&nbsp;&le;&nbsp;0:</term>
<listitem>
- <para>Cbc&nbsp;=&nbsp;(B'&nbsp;-&nbsp;Y')&nbsp;/&nbsp;1.9404</para>
+ <para>Cbc&nbsp;=&nbsp;(B'&nbsp;-&nbsp;Yc')&nbsp;/&nbsp;1.9404</para>
</listitem>
</varlistentry>
</variablelist>
@@ -1056,7 +1056,7 @@ clamped to the range [-0.5&hellip;0.5]. The Y'CbCr quantization is limited range
<varlistentry>
<term>B'&nbsp;-&nbsp;Yc'&nbsp;&gt;&nbsp;0:</term>
<listitem>
- <para>Cbc&nbsp;=&nbsp;(B'&nbsp;-&nbsp;Y')&nbsp;/&nbsp;1.5816</para>
+ <para>Cbc&nbsp;=&nbsp;(B'&nbsp;-&nbsp;Yc')&nbsp;/&nbsp;1.5816</para>
</listitem>
</varlistentry>
</variablelist>