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

Moritz Barsnick barsnick at gmx.net
Mon Aug 22 14:21:31 EEST 2016

On Mon, Aug 22, 2016 at 11:27:12 +0200, Paul B Mahol wrote:

I have no idea what the result looks like, but perhaps "looks like" is
thinking too unhypothetical. ;-) Anyways:

> +Clamp the first input stream with the second input and third input stream.

Perhaps: Clamp the first input stream's pixel values with the second
input and third input stream.

> +Returns the value of first stream to be between second input
> +stream - @code{undershoot} and third input stream + @code{overshoot}.

Same here.

> +static const AVOption maskedclamp_options[] = {
> +    { "undershoot", "set undershoot", OFFSET(undershoot), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
> +    { "overshoot",  "set overshoot",  OFFSET(overshoot),  AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },

Could these not just as well be used with negative values? (They are
like constant offsets to the masks, right?)


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