avfilter: add colorchart video filter

1 files changed, 19 insertions, 0 deletions

diff --git a/doc/filters.texi b/doc/filters.texi
index 92d0e976d8..a428191f6a 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -26287,6 +26287,7 @@ ffplay -f lavfi life=s=300x200:mold=10:r=60:ratio=0.1:death_color=#C83232:life_c
 @anchor{allrgb}
 @anchor{allyuv}
 @anchor{color}
+@anchor{colorchart}
 @anchor{colorspectrum}
 @anchor{haldclutsrc}
 @anchor{nullsrc}
@@ -26306,6 +26307,8 @@ The @code{allyuv} source returns frames of size 4096x4096 of all yuv colors.
 
 The @code{color} source provides an uniformly colored input.
 
+The @code{colorchart} source provides a colors checker chart.
+
 The @code{colorspectrum} source provides a color spectrum input.
 
 The @code{haldclutsrc} source provides an identity Hald CLUT. See also
@@ -26409,6 +26412,22 @@ Set the type of the color spectrum, only available in the
 @item white
 @item all
 @end table
+
+@item patch_size
+Set patch size of single color patch, only available in the
+@code{colorchart} source. Default is @code{64x64}.
+
+@item preset
+Set colorchecker colors preset, only available in the
+@code{colorchart} source.
+
+Available values are:
+@table @samp
+@item reference
+@item skintones
+@end table
+
+Default value is @code{reference}.
 @end table
 
 @subsection Examples