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Code Issues Releases Activity

avfilter/vf_xmedian: add support for commands

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This commit is contained in:
Paul B Mahol 2020-12-25 16:41:44 +01:00
parent 4848eb48ac
commit 5b48d2af43
2 changed files with 33 additions and 4 deletions
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8
doc/filters.texi
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@ -19315,6 +19315,10 @@ Default value of @code{0.5} will pick always median values, while @code{0} will
minimum values, and @code{1} maximum values.
@end table
@subsection Commands
This filter supports all above options as @ref{commands}, excluding option @code{radius}.
@section tmix
Mix successive video frames.
@ -21259,6 +21263,10 @@ Default value of @code{0.5} will pick always median values, while @code{0} will
minimum values, and @code{1} maximum values.
@end table
@subsection Commands
This filter supports all above options as @ref{commands}, excluding option @code{inputs}.
@section xstack
Stack video inputs into custom layout.

29
libavfilter/vf_xmedian.c
View File

@ -344,13 +344,32 @@ static int activate(AVFilterContext *ctx)
return ff_framesync_activate(&s->fs);
}
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
char *res, int res_len, int flags)
{
XMedianContext *s = ctx->priv;
int ret;
ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
if (ret < 0)
return ret;
if (s->nb_inputs & 1)
s->index = s->radius * 2.f * s->percentile;
else
s->index = av_clip(s->radius * 2.f * s->percentile, 1, s->nb_inputs - 1);
return 0;
}
#define OFFSET(x) offsetof(XMedianContext, x)
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM
#define TFLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_RUNTIME_PARAM
static const AVOption xmedian_options[] = {
{ "inputs", "set number of inputs", OFFSET(nb_inputs), AV_OPT_TYPE_INT, {.i64=3}, 3, 255, .flags = FLAGS },
{ "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=15}, 0, 15, .flags = FLAGS },
{ "percentile", "set percentile", OFFSET(percentile),AV_OPT_TYPE_FLOAT,{.dbl=0.5}, 0, 1, .flags = FLAGS },
{ "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=15}, 0, 15, .flags =TFLAGS },
{ "percentile", "set percentile", OFFSET(percentile),AV_OPT_TYPE_FLOAT,{.dbl=0.5}, 0, 1, .flags =TFLAGS },
{ NULL },
};
@ -377,6 +396,7 @@ AVFilter ff_vf_xmedian = {
.uninit = uninit,
.activate = activate,
.flags = AVFILTER_FLAG_DYNAMIC_INPUTS | AVFILTER_FLAG_SLICE_THREADS,
.process_command = process_command,
};
#endif /* CONFIG_XMEDIAN_FILTER */
@ -422,8 +442,8 @@ static int tmedian_filter_frame(AVFilterLink *inlink, AVFrame *in)
static const AVOption tmedian_options[] = {
{ "radius", "set median filter radius", OFFSET(radius), AV_OPT_TYPE_INT, {.i64=1}, 1, 127, .flags = FLAGS },
{ "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=15}, 0, 15, .flags = FLAGS },
{ "percentile", "set percentile", OFFSET(percentile), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, .flags = FLAGS },
{ "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=15}, 0, 15, .flags =TFLAGS },
{ "percentile", "set percentile", OFFSET(percentile), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, .flags =TFLAGS },
{ NULL },
};
@ -458,6 +478,7 @@ AVFilter ff_vf_tmedian = {
.init = init,
.uninit = uninit,
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
.process_command = process_command,
};
#endif /* CONFIG_TMEDIAN_FILTER */