Extractplanes
Video Multiple outputs Transform
Extract planes as grayscale frames.
FFmpeg filter:
extractplanes— 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():
$outputs = $video->addFilter(new Extractplanes(…))->outputs(); // one stream per output padShorthand. Not available — apply() returns a single stream, and Extractplanes has multiple outputs. Use addFilter() + outputs() above.
When to use it
Section titled “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
Section titled “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
Section titled “Examples”TODO — runnable PHP, with the equivalent ffmpeg CLI alongside.
Gotchas
Section titled “Gotchas”TODO
See also
Section titled “See also”TODO
Parameters
Section titled “Parameters”| Parameter | Type | Default | Range / values | Description |
|---|---|---|---|---|
planes | int|string | 1 | — | set planes |
Maps to FFmpeg’s extractplanes filter. Verified against ffmpeg n7.1.1.
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