Showspatial

Audio Video Single output Transform

Convert input audio to a spatial video output.

FFmpeg filter: showspatial — 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 Showspatial(…));
$result = $node->outputs()[0];

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

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

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
size	string	512x512	—	set video size
win_size	int	4096	1024–65536	set window size
win_func	ShowspatialWinFunc	hanning	rect, bartlett, hanning, hamming, blackman, welch, flattop, bharris, …	set window function
rate	string	25	—	set video rate

FFmpeg also names these options (use the parameter shown above): s → size, r → rate.

---

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