Estdif

Video Single output Transform

Apply Edge Slope Tracing deinterlace.

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

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

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

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
mode	EstdifMode	field	frame, field	specify the mode
parity	EstdifParity	auto	tff, bff, auto	specify the assumed picture field parity
deint	EstdifDeint	all	all, interlaced	specify which frames to deinterlace
rslope	int	1	1–15	specify the search radius for edge slope tracing
redge	int	2	0–15	specify the search radius for best edge matching
ecost	int	2	0–50	specify the edge cost for edge matching
mcost	int	1	0–50	specify the middle cost for edge matching
dcost	int	1	0–50	specify the distance cost for edge matching
interp	EstdifInterp	4p	2p, 4p, 6p	specify the type of interpolation

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