[FFmpeg-devel] [PATCH] avfilter: add maskedmerge filter

[Moritz Barsnick]

On Sat, Sep 26, 2015 at 10:29:15 +0200, Paul B Mahol wrote:

> +Merge first input stream with second input stream using per pixel weights in
> +the third input stream. 0 means that pixel component from first stream is
> +returned unchanged while 255 for 8-bit videos means that pixel component from
> +second stream is returned unchanged.

> +Merge first input stream with second input stream using per pixel weights in
> +the third input stream.

Merge the first input stream with the second input stream using per
pixel weights in the third input stream.

(I'm not keen on omitting all those "the"s, though it would work in
this sentence.)

> 0 means that pixel component from first stream is returned unchanged
> while 255 for 8-bit videos means that pixel component from second
> stream is returned unchanged.

A value of 0 in the third stream means that the pixel component from
the first stream is returned unchanged, while the maximum value (e.g.
255 for 8-bit videos) means that the pixel component from the second
stream is returned unchanged. Intermediate values define the amount of
merging between both input streams' pixels.

> +This filter accepts the following options:
> + at table @option
> + at item planes
> +Set which planes will be processed as bitmap, unprocessed planes will be
> +copied from first stream.
> +By default all planes will be processed.
> + at end table

Syntax, values? I assume like "extractplanes"'s "planes" option, right?

Cheers,
Moritz