Floodfill

Video Single output Transform

Fill area with same color with another color.

FFmpeg filter: floodfill — the official reference.

Add it to a graph. The explicit form works for every filter — bind it to its input and read the result from outputs():

$node   = $video->addFilter(new Floodfill(…));
$result = $node->outputs()[0];

Shorthand. Single-output filters can skip the node — apply() returns the result stream directly:

$result = $video->apply(new Floodfill(…));

When to use it

TODO — when this filter shines: what it’s the right tool for, what to reach for instead when it isn’t, and how it composes with neighbouring filters.

How to use it

TODO — prose: how the filter actually works and what its key parameters mean (the explanation FFmpeg’s terse option help omits).

Examples

TODO — runnable PHP, with the equivalent ffmpeg CLI alongside.

Gotchas

TODO

See also

TODO

Parameters

Parameter	Type	Default	Range / values	Description
x	int	0	0–65535	set pixel x coordinate
y	int	0	0–65535	set pixel y coordinate
s0	int	0	-1–65535	set source #0 component value
s1	int	0	-1–65535	set source #1 component value
s2	int	0	-1–65535	set source #2 component value
s3	int	0	-1–65535	set source #3 component value
d0	int	0	0–65535	set destination #0 component value
d1	int	0	0–65535	set destination #1 component value
d2	int	0	0–65535	set destination #2 component value
d3	int	0	0–65535	set destination #3 component value

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Maps to FFmpeg’s floodfill filter. Verified against ffmpeg n7.1.1.