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doc/filters: split item options which are not aliases.

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Clément Bœsch 2013-05-12 13:23:45 +02:00
parent 09d3449a8f
commit cd43a7e945
1 changed files with 58 additions and 29 deletions
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87
doc/filters.texi
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@ -2149,13 +2149,16 @@ corresponding value set for @option{luma_radius}.
The expressions can contain the following constants:
@table @option
@item w, h
@item w
@item h
the input width and height in pixels
@item cw, ch
@item cw
@item ch
the input chroma image width and height in pixels
@item hsub, vsub
@item hsub
@item vsub
horizontal and vertical chroma subsample values. For example for the
pixel format "yuv422p" @var{hsub} is 2 and @var{vsub} is 1.
@end table
@ -2367,20 +2370,25 @@ The @var{out_w}, @var{out_h}, @var{x}, @var{y} parameters are
expressions containing the following constants:
@table @option
@item x, y
@item x
@item y
the computed values for @var{x} and @var{y}. They are evaluated for
each new frame.
@item in_w, in_h
@item in_w
@item in_h
the input width and height
@item iw, ih
@item iw
@item ih
same as @var{in_w} and @var{in_h}
@item out_w, out_h
@item out_w
@item out_h
the output (cropped) width and height
@item ow, oh
@item ow
@item oh
same as @var{out_w} and @var{out_h}
@item a
@ -2392,7 +2400,8 @@ input sample aspect ratio
@item dar
input display aspect ratio, it is the same as (@var{iw} / @var{ih}) * @var{sar}
@item hsub, vsub
@item hsub
@item vsub
horizontal and vertical chroma subsample values. For example for the
pixel format "yuv422p" @var{hsub} is 2 and @var{vsub} is 1.
@ -2695,11 +2704,13 @@ pixels. Just set a rectangle covering the logo and watch it disappear
This filter accepts the following options:
@table @option
@item x, y
@item x
@item y
Specify the top left corner coordinates of the logo. They must be
specified.
@item w, h
@item w
@item h
Specify the width and height of the logo to clear. They must be
specified.
@ -2813,7 +2824,8 @@ Draw a colored box on the input image.
This filter accepts the following options:
@table @option
@item x, y
@item x
@item y
Specify the top left corner coordinates of the box. Default to 0.
@item width, w
@ -2951,7 +2963,8 @@ can be a color name (e.g. "yellow") or a string in the 0xRRGGBB[AA]
form (e.g. "0xff00ff"), possibly followed by an alpha specifier.
The default value of @var{shadowcolor} is "black".
@item shadowx, shadowy
@item shadowx
@item shadowy
The x and y offsets for the text shadow position with respect to the
position of the text. They can be either positive or negative
values. Default value for both is "0".
@ -2987,7 +3000,8 @@ If both @var{text} and @var{textfile} are specified, an error is thrown.
If set to 1, the @var{textfile} will be reloaded before each frame.
Be sure to update it atomically, or it may be read partially, or even fail.
@item x, y
@item x
@item y
The expressions which specify the offsets where text will be drawn
within the video frame. They are relative to the top/left border of the
output image.
@ -3004,7 +3018,8 @@ following constants and functions:
@item dar
input display aspect ratio, it is the same as (@var{w} / @var{h}) * @var{sar}
@item hsub, vsub
@item hsub
@item vsub
horizontal and vertical chroma subsample values. For example for the
pixel format "yuv422p" @var{hsub} is 2 and @var{vsub} is 1.
@ -3057,7 +3072,8 @@ the height of the rendered text
@item text_w, tw
the width of the rendered text
@item x, y
@item x
@item y
the x and y offset coordinates where the text is drawn.
These parameters allow the @var{x} and @var{y} expressions to refer
@ -3212,7 +3228,8 @@ Detect and draw edges. The filter uses the Canny Edge Detection algorithm.
The filter accepts the following options:
@table @option
@item low, high
@item low
@item high
Set low and high threshold values used by the Canny thresholding
algorithm.
@ -4496,7 +4513,8 @@ The @var{lut} filter requires either YUV or RGB pixel formats in input,
The expressions can contain the following constants and functions:
@table @option
@item w, h
@item w
@item h
the input width and height
@item val
@ -5125,20 +5143,25 @@ The value for the @var{width}, @var{height}, @var{x}, and @var{y}
options are expressions containing the following constants:
@table @option
@item in_w, in_h
@item in_w
@item in_h
the input video width and height
@item iw, ih
@item iw
@item ih
same as @var{in_w} and @var{in_h}
@item out_w, out_h
@item out_w
@item out_h
the output width and height, that is the size of the padded area as
specified by the @var{width} and @var{height} expressions
@item ow, oh
@item ow
@item oh
same as @var{out_w} and @var{out_h}
@item x, y
@item x
@item y
x and y offsets as specified by the @var{x} and @var{y}
expressions, or NAN if not yet specified
@ -5151,7 +5174,8 @@ input sample aspect ratio
@item dar
input display aspect ratio, it is the same as (@var{iw} / @var{ih}) * @var{sar}
@item hsub, vsub
@item hsub
@item vsub
horizontal and vertical chroma subsample values. For example for the
pixel format "yuv422p" @var{hsub} is 2 and @var{vsub} is 1.
@end table
@ -5480,16 +5504,20 @@ The values of the @var{w} and @var{h} options are expressions
containing the following constants:
@table @option
@item in_w, in_h
@item in_w
@item in_h
the input width and height
@item iw, ih
@item iw
@item ih
same as @var{in_w} and @var{in_h}
@item out_w, out_h
@item out_w
@item out_h
the output (cropped) width and height
@item ow, oh
@item ow
@item oh
same as @var{out_w} and @var{out_h}
@item a
@ -5501,7 +5529,8 @@ input sample aspect ratio
@item dar
input display aspect ratio, it is the same as (@var{iw} / @var{ih}) * @var{sar}
@item hsub, vsub
@item hsub
@item vsub
horizontal and vertical chroma subsample values. For example for the
pixel format "yuv422p" @var{hsub} is 2 and @var{vsub} is 1.
@end table