Deblock

Video Single output Transform

Deblock video.

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

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

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

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
filter	DeblockFilter	strong	weak, strong	set type of filter
block	int	8	4–512	set size of block
alpha	float	0.098	0–1	set 1st detection threshold
beta	float	0.05	0–1	set 2nd detection threshold
gamma	float	0.05	0–1	set 3rd detection threshold
delta	float	0.05	0–1	set 4th detection threshold
planes	int	15	0–15	set planes to filter

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