[FFmpeg-devel,V2] avfilter/vf_bilateral: process command to set the parameter at runtime

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Reviewed-by: Jun Zhao <mypopy@gmail.com>
Signed-off-by: leozhang <leozhang@qiyi.com>
---
 libavfilter/vf_bilateral.c | 60 +++++++++++++++++++++++++++++++++++-----------
 1 file changed, 46 insertions(+), 14 deletions(-)

Still not OK, you are using old process command which is pointless now.

On 10/24/19, leozhang <leozhang@qiyi.com> wrote:
> Reviewed-by: Paul B Mahol <onemda@gmail.com>
> Reviewed-by: Jun Zhao <mypopy@gmail.com>
> Signed-off-by: leozhang <leozhang@qiyi.com>
> ---
>  libavfilter/vf_bilateral.c | 60
> +++++++++++++++++++++++++++++++++++-----------
>  1 file changed, 46 insertions(+), 14 deletions(-)
>
> diff --git a/libavfilter/vf_bilateral.c b/libavfilter/vf_bilateral.c
> index 3c9d800..87843eb 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 },
> @@ -91,19 +93,27 @@ 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 init_lut(BilateralContext *s)
>  {
> -    BilateralContext *s = inlink->dst->priv;
> -    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
>      float inv_sigma_range;
>
> -    s->depth = desc->comp[0].depth;
>      inv_sigma_range = 1.0f / (s->sigmaR * ((1 << s->depth) - 1));
>
>      //compute a lookup table
>      for (int i = 0; i < (1 << s->depth); i++)
>          s->range_table[i] = expf(-i * inv_sigma_range);
>
> +    return 0;
> +}
> +
> +static int config_input(AVFilterLink *inlink)
> +{
> +    BilateralContext *s = inlink->dst->priv;
> +    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
> +
> +    s->depth = desc->comp[0].depth;
> +    init_lut(s);
> +
>      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);
> @@ -325,6 +335,27 @@ 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 = 0;
> +
> +    if (   !strcmp(cmd, "sigmaS") || !(strcmp(cmd, "sigmaR"))
> +        || !strcmp(cmd, "planes")) {
> +        float old_sigmaR = s->sigmaR;
> +
> +        ret = av_opt_set(s, cmd, args, 0);
> +        if (!ret && fabs(old_sigmaR - s->sigmaR) > FLT_EPSILON && (ret =
> init_lut(s)) < 0) {
> +            s->sigmaR = old_sigmaR;
> +        }
> +    } else {
> +        ret = AVERROR(ENOSYS);
> +    }
> +
> +    return ret;
> +}
> +
>  static av_cold void uninit(AVFilterContext *ctx)
>  {
>      BilateralContext *s = ctx->priv;
> @@ -358,13 +389,14 @@ static const AVFilterPad bilateral_outputs[] = {
>  };
>
>  AVFilter ff_vf_bilateral = {
> -    .name          = "bilateral",
> -    .description   = NULL_IF_CONFIG_SMALL("Apply Bilateral filter."),
> -    .priv_size     = sizeof(BilateralContext),
> -    .priv_class    = &bilateral_class,
> -    .uninit        = uninit,
> -    .query_formats = query_formats,
> -    .inputs        = bilateral_inputs,
> -    .outputs       = bilateral_outputs,
> -    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
> +    .name            = "bilateral",
> +    .description     = NULL_IF_CONFIG_SMALL("Apply Bilateral filter."),
> +    .priv_size       = sizeof(BilateralContext),
> +    .priv_class      = &bilateral_class,
> +    .uninit          = uninit,
> +    .query_formats   = query_formats,
> +    .inputs          = bilateral_inputs,
> +    .outputs         = bilateral_outputs,
> +    .flags           = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
> +    .process_command = process_command,
>  };
> --
> 1.8.3.1
>
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Paul B Mahol <onemda@gmail.com> 于2019年10月24日周四 下午3:42写道：
>
> Still not OK, you are using old process command which is pointless now.
Right. I will submit a new version. Thanks a lot.
>
> On 10/24/19, leozhang <leozhang@qiyi.com> wrote:
> > Reviewed-by: Paul B Mahol <onemda@gmail.com>
> > Reviewed-by: Jun Zhao <mypopy@gmail.com>
> > Signed-off-by: leozhang <leozhang@qiyi.com>
> > ---
> >  libavfilter/vf_bilateral.c | 60
> > +++++++++++++++++++++++++++++++++++-----------
> >  1 file changed, 46 insertions(+), 14 deletions(-)
> >
> > diff --git a/libavfilter/vf_bilateral.c b/libavfilter/vf_bilateral.c
> > index 3c9d800..87843eb 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 },
> > @@ -91,19 +93,27 @@ 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 init_lut(BilateralContext *s)
> >  {
> > -    BilateralContext *s = inlink->dst->priv;
> > -    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
> >      float inv_sigma_range;
> >
> > -    s->depth = desc->comp[0].depth;
> >      inv_sigma_range = 1.0f / (s->sigmaR * ((1 << s->depth) - 1));
> >
> >      //compute a lookup table
> >      for (int i = 0; i < (1 << s->depth); i++)
> >          s->range_table[i] = expf(-i * inv_sigma_range);
> >
> > +    return 0;
> > +}
> > +
> > +static int config_input(AVFilterLink *inlink)
> > +{
> > +    BilateralContext *s = inlink->dst->priv;
> > +    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
> > +
> > +    s->depth = desc->comp[0].depth;
> > +    init_lut(s);
> > +
> >      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);
> > @@ -325,6 +335,27 @@ 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 = 0;
> > +
> > +    if (   !strcmp(cmd, "sigmaS") || !(strcmp(cmd, "sigmaR"))
> > +        || !strcmp(cmd, "planes")) {
> > +        float old_sigmaR = s->sigmaR;
> > +
> > +        ret = av_opt_set(s, cmd, args, 0);
> > +        if (!ret && fabs(old_sigmaR - s->sigmaR) > FLT_EPSILON && (ret =
> > init_lut(s)) < 0) {
> > +            s->sigmaR = old_sigmaR;
> > +        }
> > +    } else {
> > +        ret = AVERROR(ENOSYS);
> > +    }
> > +
> > +    return ret;
> > +}
> > +
> >  static av_cold void uninit(AVFilterContext *ctx)
> >  {
> >      BilateralContext *s = ctx->priv;
> > @@ -358,13 +389,14 @@ static const AVFilterPad bilateral_outputs[] = {
> >  };
> >
> >  AVFilter ff_vf_bilateral = {
> > -    .name          = "bilateral",
> > -    .description   = NULL_IF_CONFIG_SMALL("Apply Bilateral filter."),
> > -    .priv_size     = sizeof(BilateralContext),
> > -    .priv_class    = &bilateral_class,
> > -    .uninit        = uninit,
> > -    .query_formats = query_formats,
> > -    .inputs        = bilateral_inputs,
> > -    .outputs       = bilateral_outputs,
> > -    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
> > +    .name            = "bilateral",
> > +    .description     = NULL_IF_CONFIG_SMALL("Apply Bilateral filter."),
> > +    .priv_size       = sizeof(BilateralContext),
> > +    .priv_class      = &bilateral_class,
> > +    .uninit          = uninit,
> > +    .query_formats   = query_formats,
> > +    .inputs          = bilateral_inputs,
> > +    .outputs         = bilateral_outputs,
> > +    .flags           = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
> > +    .process_command = process_command,
> >  };
> > --
> > 1.8.3.1
> >
> > _______________________________________________
> > ffmpeg-devel mailing list
> > ffmpeg-devel@ffmpeg.org
> > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
> >
> > To unsubscribe, visit link above, or email
> > ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
> _______________________________________________
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>
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