On Fri, Nov 15, 2019 at 04:35:49PM +0800, leozhang wrote:
> Reviewed-by: Paul B Mahol <one...@gmail.com>
> Reviewed-by: Jun Zhao <myp...@gmail.com>
> Signed-off-by: leozhang <leozh...@qiyi.com>
> ---
>
> doc/filters.texi | 4 ++++
> libavfilter/vf_bilateral.c | 23 ++++++++++++++++++++++-
> 2 files changed, 26 insertions(+), 1 deletion(-)
>
> diff --git a/doc/filters.texi b/doc/filters.texi
> index e48f9c9..6b1a5cb 100644
> --- a/doc/filters.texi
> +++ b/doc/filters.texi
> @@ -6355,6 +6355,10 @@ 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.
> diff --git a/libavfilter/vf_bilateral.c b/libavfilter/vf_bilateral.c
> index 36e53d2..ba3631c 100644
> --- a/libavfilter/vf_bilateral.c
> +++ b/libavfilter/vf_bilateral.c
> @@ -29,6 +29,8 @@
> #include "internal.h"
> #include "video.h"
>
> +#include <float.h>
> +
> typedef struct BilateralContext {
> const AVClass *class;
>
> @@ -54,7 +56,7 @@ 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, 10, FLAGS },
> @@ -333,6 +335,24 @@ static int filter_frame(AVFilterLink *inlink, AVFrame
> *in)
> return ff_filter_frame(outlink, out);
> }
>
> +static int process_command(AVFilterContext *ctx, const char *cmd, const char
> *args,
> + char *res, int res_len, int flags)
> +{
> + BilateralContext *s = ctx->priv;
> + int ret;
> + float old_sigmaR = s->sigmaR;
> +
> + if ((ret = ff_filter_process_command(ctx, cmd, args, res, res_len,
> flags)) < 0) {
> + return ret;
> + }
> +
> + if (fabs(old_sigmaR - s->sigmaR) > FLT_EPSILON && (ret = init_lut(s)) <
> 0) {
fabsf is for float
> + s->sigmaR = old_sigmaR;
> + }
> +
> + return ret;
> +}
> +
> static av_cold void uninit(AVFilterContext *ctx)
> {
> BilateralContext *s = ctx->priv;
> @@ -375,4 +395,5 @@ AVFilter ff_vf_bilateral = {
> .inputs = bilateral_inputs,
> .outputs = bilateral_outputs,
> .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
> + .process_command = process_command,
> };
> --
> 1.8.3.1
>
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