lavfi/hue: allow changing brightness

[ffmpeg] / doc / filters.texi

diff --git a/doc/filters.texi b/doc/filters.texi
index b89ba96351807bd2541457cb85807784a3c91ecb..5d9a2df2643cbd2d1a43495cf2a776edc0559415 100644 (file)
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -4159,6 +4159,14 @@ round to nearest
 @end table
 The default is @code{near}.
 
+@item start_time
+Assume the first PTS should be the given value, in seconds. This allows for
+padding/trimming at the start of stream. By default, no assumption is made
+about the first frame's expected PTS, so no padding or trimming is done.
+For example, this could be set to 0 to pad the beginning with duplicates of
+the first frame if a video stream starts after the audio stream or to trim any
+frames with a negative PTS.
+
 @end table
 
 Alternatively, the options can be specified as a flat string:
@@ -4707,12 +4715,16 @@ defaults to "1".
 @item H
 Specify the hue angle as a number of radians. It accepts an
 expression, and defaults to "0".
+
+@item b
+Specify the brightness in the [-10,10] range. It accepts an expression and
+defaults to "0".
 @end table
 
 @option{h} and @option{H} are mutually exclusive, and can't be
 specified at the same time.
 
-The @option{h}, @option{H} and @option{s} option values are
+The @option{b}, @option{h}, @option{H} and @option{s} option values are
 expressions containing the following constants:
 
 @table @option
@@ -4782,10 +4794,11 @@ hue="s=max(0\, min(1\, (START+DURATION-t)/DURATION))"
 
 This filter supports the following commands:
 @table @option
+@item b
 @item s
 @item h
 @item H
-Modify the hue and/or the saturation of the input video.
+Modify the hue and/or the saturation and/or brightness of the input video.
 The command accepts the same syntax of the corresponding option.
 
 If the specified expression is not valid, it is kept at its current
@@ -7119,6 +7132,10 @@ Set the inner border thickness (i.e. the number of pixels between frames). For
 more advanced padding options (such as having different values for the edges),
 refer to the pad video filter.
 
+@item color
+Specify the color of the unused area, it can be the name of a color
+(case insensitive match) or a 0xRRGGBB[AA] sequence.
+The default value of @var{color} is "black".
 @end table
 
 @subsection Examples