Minterpolate

Video Single output Transform

Frame rate conversion using Motion Interpolation.

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

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

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

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
fps	string	60	—	output’s frame rate
mi_mode	MinterpolateMiMode	mci	dup, blend, mci	motion interpolation mode
mc_mode	MinterpolateMcMode	obmc	obmc, aobmc	motion compensation mode
me_mode	MinterpolateMeMode	bilat	bidir, bilat	motion estimation mode
me	MinterpolateMe	epzs	esa, tss, tdls, ntss, fss, ds, hexbs, epzs, …	motion estimation method
mb_size	int	16	4–16	macroblock size
search_param	int	32	≥ 4	search parameter
vsbmc	int	0	0–1	variable-size block motion compensation
scd	MinterpolateScene	fdiff	none, fdiff	scene change detection method
scd_threshold	float	10	0–100	scene change threshold

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