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avfilter/vf_colorkey: add support for commands

This commit is contained in:
Paul B Mahol 2020-02-11 13:57:43 +01:00
parent e8cbdb9adb
commit 52cd7a6337
2 changed files with 17 additions and 1 deletions
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14
doc/filters.texi
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@ -7378,6 +7378,13 @@ ffmpeg -i background.png -i video.mp4 -filter_complex "[1:v]colorkey=0x3BBD1E:0.
@end example
@end itemize
@subsection Commands
This filter supports same @ref{commands} as options.
The command accepts the same syntax of the corresponding option.
If the specified expression is not valid, it is kept at its current
value.
@section colorhold
Remove all color information for all RGB colors except for certain one.
@ -7396,6 +7403,13 @@ Blend percentage. 0.0 makes pixels fully gray.
Higher values result in more preserved color.
@end table
@subsection Commands
This filter supports same @ref{commands} as options.
The command accepts the same syntax of the corresponding option.
If the specified expression is not valid, it is kept at its current
value.
@section colorlevels
Adjust video input frames using levels.

4
libavfilter/vf_colorkey.c
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@ -199,7 +199,7 @@ static const AVFilterPad colorkey_outputs[] = {
};
#define OFFSET(x) offsetof(ColorkeyContext, x)
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
#if CONFIG_COLORKEY_FILTER
@ -222,6 +222,7 @@ AVFilter ff_vf_colorkey = {
.inputs = colorkey_inputs,
.outputs = colorkey_outputs,
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
.process_command = ff_filter_process_command,
};
#endif /* CONFIG_COLORKEY_FILTER */
@ -246,6 +247,7 @@ AVFilter ff_vf_colorhold = {
.inputs = colorkey_inputs,
.outputs = colorkey_outputs,
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
.process_command = ff_filter_process_command,
};
#endif /* CONFIG_COLORHOLD_FILTER */