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avfilter/vf_bilateral: add support for commands

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This commit is contained in:
Paul B Mahol 2020-12-19 20:32:09 +01:00
parent 31aa6bdb59
commit d6a356f115
2 changed files with 36 additions and 5 deletions
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4
doc/filters.texi
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@ -7158,6 +7158,10 @@ Allowed range is 0 to 1. Default is 0.1.
Set planes to filter. Default is first only.
@end table
@subsection Commands
This filter supports the all above options as @ref{commands}.
@section bitplanenoise
Show and measure bit plane noise.

37
libavfilter/vf_bilateral.c
View File

@ -55,7 +55,7 @@ typedef struct BilateralContext {
} BilateralContext;
#define OFFSET(x) offsetof(BilateralContext, x)
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
static const AVOption bilateral_options[] = {
{ "sigmaS", "set spatial sigma", OFFSET(sigmaS), AV_OPT_TYPE_FLOAT, {.dbl=0.1}, 0.0, 512, FLAGS },
@ -92,13 +92,11 @@ static int query_formats(AVFilterContext *ctx)
return ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
}
static int config_input(AVFilterLink *inlink)
static int config_params(AVFilterContext *ctx)
{
BilateralContext *s = inlink->dst->priv;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
BilateralContext *s = ctx->priv;
float inv_sigma_range;
s->depth = desc->comp[0].depth;
inv_sigma_range = 1.0f / (s->sigmaR * ((1 << s->depth) - 1));
s->alpha = expf(-sqrtf(2.f) / s->sigmaS);
@ -106,6 +104,19 @@ static int config_input(AVFilterLink *inlink)
for (int i = 0; i < (1 << s->depth); i++)
s->range_table[i] = s->alpha * expf(-i * inv_sigma_range);
return 0;
}
static int config_input(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
BilateralContext *s = ctx->priv;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
s->depth = desc->comp[0].depth;
config_params(ctx);
s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
s->planewidth[0] = s->planewidth[3] = inlink->w;
s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
@ -335,6 +346,21 @@ static av_cold void uninit(AVFilterContext *ctx)
av_freep(&s->line_factor_b);
}
static int process_command(AVFilterContext *ctx,
const char *cmd,
const char *arg,
char *res,
int res_len,
int flags)
{
int ret = ff_filter_process_command(ctx, cmd, arg, res, res_len, flags);
if (ret < 0)
return ret;
return config_params(ctx);
}
static const AVFilterPad bilateral_inputs[] = {
{
.name = "default",
@ -363,4 +389,5 @@ AVFilter ff_vf_bilateral = {
.inputs = bilateral_inputs,
.outputs = bilateral_outputs,
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
.process_command = process_command,
};