[FFmpeg-devel] [PATCH] avfilter/vf_yaepblur: add yaepblur filter
Tao Zhang
nowerzt at gmail.com
Sat Dec 7 15:54:01 EET 2019
I'm sorry for the late reply.
Paul B Mahol <onemda at gmail.com> 于2019年12月7日周六 上午2:48写道：
>
> On 12/5/19, Paul B Mahol <onemda at gmail.com> wrote:
> > On 12/5/19, Tao Zhang <nowerzt at gmail.com> wrote:
> >> Hello everyone,
> >> Can I assume this patch is ok if no comments or objections?
> >
> > Yes, give some time for it to be applied.
> > I'm busy with other stuff right now. So this patch LGTM (Note to
> > committer to bump minor of libavfiter upon pushing).
>
> I do not get anywhere near output of this filter with either
> avgblur/gblur/boxblur?
>
> How should output of this filter look like?
Assume keeping planes and radius unchanged，
1) the output is near avgblur/boxblur when sigma close to INT_MAX
2) the output is near raw input when sigma close to one, so why not
zero? just keep code simple, I need to gurantee the
denominator larger than zero
3) the output is local adaptive that means blur stronger on flat area
while blur weaker on edge otherwise.
>
> >
> >>
> >> Tao Zhang <nowerzt at gmail.com> 于2019年12月3日周二 下午5:26写道：
> >>>
> >>> ping:)
> >>>
> >>> leozhang <leozhang at qiyi.com> 于2019年11月25日周一 下午5:53写道：
> >>> >
> >>> > Signed-off-by: leozhang <leozhang at qiyi.com>
> >>> > ---
> >>> > This filter blur the input while preserving edges, with slice threads
> >>> > speed up.
> >>> > My test speed is about 100fps on 1080p video with 16 threads, on my
> >>> > test
> >>> > machine whose cpu is E5-2660 v4 2.0GHz using 16 threads.
> >>> > I gauss that i7-9700K 3.6GHz can run faster more.
> >>> > The test command is
> >>> > ffmpeg -s 1920x1080 -r 30 -i your_test_file.yuv -filter_threads 16 -vf
> >>> > yaepblur -f null -
> >>> >
> >>> > doc/filters.texi | 22 +++
> >>> > libavfilter/Makefile | 1 +
> >>> > libavfilter/allfilters.c | 1 +
> >>> > libavfilter/vf_yaepblur.c | 349
> >>> > ++++++++++++++++++++++++++++++++++++++++++++++
> >>> > 4 files changed, 373 insertions(+)
> >>> > create mode 100644 libavfilter/vf_yaepblur.c
> >>> >
> >>> > diff --git a/doc/filters.texi b/doc/filters.texi
> >>> > index c04421b..61e93d5 100644
> >>> > --- a/doc/filters.texi
> >>> > +++ b/doc/filters.texi
> >>> > @@ -19775,6 +19775,28 @@ Only deinterlace frames marked as interlaced.
> >>> > The default value is @code{all}.
> >>> > @end table
> >>> >
> >>> > + at section yaepblur
> >>> > +
> >>> > +Apply blur filter while preserving edges ("yaepblur" means "yet
> >>> > another
> >>> > edge preserving blur filter").
> >>> > +The algorithm is described in
> >>> > +"J. S. Lee, Digital image enhancement and noise filtering by use of
> >>> > local statistics, IEEE Trans. Pattern Anal. Mach. Intell. PAMI-2,
> >>> > 1980."
> >>> > +
> >>> > +It accepts the following parameters:
> >>> > +
> >>> > + at table @option
> >>> > + at item radius, r
> >>> > +Set the window radius. Default value is 3.
> >>> > +
> >>> > + at item planes, p
> >>> > +Set which planes to filter. Default is only the first plane.
> >>> > +
> >>> > + at item sigma, s
> >>> > +Set blur strength. Default value is 128.
> >>> > + at end table
> >>> > +
> >>> > + at subsection Commands
> >>> > +This filter supports same @ref{commands} as options.
> >>> > +
> >>> > @section zoompan
> >>> >
> >>> > Apply Zoom & Pan effect.
> >>> > diff --git a/libavfilter/Makefile b/libavfilter/Makefile
> >>> > index 6838d5c..b490a44 100644
> >>> > --- a/libavfilter/Makefile
> >>> > +++ b/libavfilter/Makefile
> >>> > @@ -442,6 +442,7 @@ OBJS-$(CONFIG_XSTACK_FILTER) +=
> >>> > vf_stack.o framesync.o
> >>> > OBJS-$(CONFIG_YADIF_FILTER) += vf_yadif.o
> >>> > yadif_common.o
> >>> > OBJS-$(CONFIG_YADIF_CUDA_FILTER) += vf_yadif_cuda.o
> >>> > vf_yadif_cuda.ptx.o \
> >>> > yadif_common.o
> >>> > +OBJS-$(CONFIG_YAEPBLUR_FILTER) += vf_yaepblur.o
> >>> > OBJS-$(CONFIG_ZMQ_FILTER) += f_zmq.o
> >>> > OBJS-$(CONFIG_ZOOMPAN_FILTER) += vf_zoompan.o
> >>> > OBJS-$(CONFIG_ZSCALE_FILTER) += vf_zscale.o
> >>> > diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c
> >>> > index 7c1e19e..8f41186 100644
> >>> > --- a/libavfilter/allfilters.c
> >>> > +++ b/libavfilter/allfilters.c
> >>> > @@ -420,6 +420,7 @@ extern AVFilter ff_vf_xmedian;
> >>> > extern AVFilter ff_vf_xstack;
> >>> > extern AVFilter ff_vf_yadif;
> >>> > extern AVFilter ff_vf_yadif_cuda;
> >>> > +extern AVFilter ff_vf_yaepblur;
> >>> > extern AVFilter ff_vf_zmq;
> >>> > extern AVFilter ff_vf_zoompan;
> >>> > extern AVFilter ff_vf_zscale;
> >>> > diff --git a/libavfilter/vf_yaepblur.c b/libavfilter/vf_yaepblur.c
> >>> > new file mode 100644
> >>> > index 0000000..ef6fbc9
> >>> > --- /dev/null
> >>> > +++ b/libavfilter/vf_yaepblur.c
> >>> > @@ -0,0 +1,349 @@
> >>> > +/*
> >>> > + * Copyright (C) 2019 Leo Zhang <leozhang at qiyi.com>
> >>> > +
> >>> > + * This file is part of FFmpeg.
> >>> > + *
> >>> > + * FFmpeg is free software; you can redistribute it and/or
> >>> > + * modify it under the terms of the GNU Lesser General Public
> >>> > + * License as published by the Free Software Foundation; either
> >>> > + * version 2.1 of the License, or (at your option) any later version.
> >>> > + *
> >>> > + * FFmpeg is distributed in the hope that it will be useful,
> >>> > + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> >>> > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> >>> > + * Lesser General Public License for more details.
> >>> > + *
> >>> > + * You should have received a copy of the GNU Lesser General Public
> >>> > + * License along with FFmpeg; if not, write to the Free Software
> >>> > + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
> >>> > 02110-1301 USA
> >>> > + */
> >>> > +
> >>> > +/**
> >>> > + * @file
> >>> > + * yaep(yet another edge preserving) blur filter
> >>> > + *
> >>> > + * This implementation is based on an algorithm described in
> >>> > + * "J. S. Lee, Digital image enhancement and noise filtering by use
> >>> > of
> >>> > local statistics, IEEE Trans. Pattern
> >>> > + * Anal. Mach. Intell. PAMI-2, 1980."
> >>> > + */
> >>> > +
> >>> > +#include "libavutil/opt.h"
> >>> > +#include "libavutil/imgutils.h"
> >>> > +#include "avfilter.h"
> >>> > +#include "internal.h"
> >>> > +
> >>> > +typedef struct YAEPContext {
> >>> > + const AVClass *class;
> >>> > +
> >>> > + int planes;
> >>> > + int radius;
> >>> > + int sigma;
> >>> > +
> >>> > + int nb_planes;
> >>> > + int planewidth[4];
> >>> > + int planeheight[4];
> >>> > + int depth;
> >>> > +
> >>> > + uint64_t *sat; ///< summed area table
> >>> > + uint64_t *square_sat; ///< square summed area table
> >>> > + int sat_linesize;
> >>> > +
> >>> > + int (*pre_calculate_row)(AVFilterContext *ctx, void *arg, int
> >>> > jobnr, int nb_jobs);
> >>> > + int (*filter_slice )(AVFilterContext *ctx, void *arg, int
> >>> > jobnr, int nb_jobs);
> >>> > +} YAEPContext;
> >>> > +
> >>> > +static av_cold void uninit(AVFilterContext *ctx)
> >>> > +{
> >>> > + YAEPContext *s = ctx->priv;
> >>> > + av_freep(&s->sat);
> >>> > + av_freep(&s->square_sat);
> >>> > +}
> >>> > +
> >>> > +static int query_formats(AVFilterContext *ctx)
> >>> > +{
> >>> > + static const enum AVPixelFormat pix_fmts[] = {
> >>> > + AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P,
> >>> > + AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
> >>> > + AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P,
> >>> > AV_PIX_FMT_YUV420P,
> >>> > + AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
> >>> > + AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
> >>> > + AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9,
> >>> > AV_PIX_FMT_YUV444P9,
> >>> > + AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10,
> >>> > AV_PIX_FMT_YUV444P10,
> >>> > + AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12,
> >>> > AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
> >>> > + AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14,
> >>> > AV_PIX_FMT_YUV444P14,
> >>> > + AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16,
> >>> > AV_PIX_FMT_YUV444P16,
> >>> > + AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9,
> >>> > AV_PIX_FMT_YUVA444P9,
> >>> > + AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10,
> >>> > AV_PIX_FMT_YUVA444P10,
> >>> > + AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12,
> >>> > + AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16,
> >>> > AV_PIX_FMT_YUVA444P16,
> >>> > + AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
> >>> > + AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
> >>> > + AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12,
> >>> > AV_PIX_FMT_GBRAP16,
> >>> > + AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10,
> >>> > AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
> >>> > + AV_PIX_FMT_NONE
> >>> > + };
> >>> > +
> >>> > + return ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
> >>> > +}
> >>> > +
> >>> > +typedef struct ThreadData {
> >>> > + int width;
> >>> > + int height;
> >>> > + int src_linesize;
> >>> > + int dst_linesize;
> >>> > + uint8_t *src;
> >>> > + uint8_t *dst;
> >>> > +} ThreadData;
> >>> > +
> >>> > +#define PRE_CALCULATE_ROW(type, name)
> >>> > \
> >>> > +static int pre_calculate_row_##name(AVFilterContext *ctx, void *arg,
> >>> > \
> >>> > + int jobnr, int nb_jobs)
> >>> > \
> >>> > +{
> >>> > \
> >>> > + ThreadData *td = arg;
> >>> > \
> >>> > + YAEPContext *s = ctx->priv;
> >>> > \
> >>> > +
> >>> > \
> >>> > + const int width = td->width;
> >>> > \
> >>> > + const int height = td->height;
> >>> > \
> >>> > + const int linesize = td->src_linesize / sizeof(type);
> >>> > \
> >>> > + const int sat_linesize = s->sat_linesize;
> >>> > \
> >>> > +
> >>> > \
> >>> > + const int starty = height * jobnr / nb_jobs;
> >>> > \
> >>> > + const int endy = height * (jobnr+1) / nb_jobs;
> >>> > \
> >>> > +
> >>> > \
> >>> > + uint64_t *sat = s->sat + (starty + 1) * sat_linesize;
> >>> > \
> >>> > + uint64_t *square_sat = s->square_sat + (starty + 1) *
> >>> > sat_linesize;
> >>> > \
> >>> > + const type *src = (const type *)td->src + starty * linesize;
> >>> > \
> >>> > +
> >>> > \
> >>> > + int x, y;
> >>> > \
> >>> > +
> >>> > \
> >>> > + for (y = starty; y < endy; y++) {
> >>> > \
> >>> > + for (x = 0; x < width; x++) {
> >>> > \
> >>> > + sat[x+1] = sat[x] + src[x];
> >>> > \
> >>> > + square_sat[x+1] = square_sat[x] + (uint64_t)src[x] *
> >>> > src[x]; \
> >>> > + }
> >>> > \
> >>> > + sat += sat_linesize;
> >>> > \
> >>> > + square_sat += sat_linesize;
> >>> > \
> >>> > + src += linesize;
> >>> > \
> >>> > + }
> >>> > \
> >>> > +
> >>> > \
> >>> > + return 0;
> >>> > \
> >>> > +}
> >>> > +
> >>> > +PRE_CALCULATE_ROW(uint8_t, byte)
> >>> > +PRE_CALCULATE_ROW(uint16_t, word)
> >>> > +
> >>> > +static int pre_calculate_col(AVFilterContext *ctx, void *arg,
> >>> > + int jobnr, int nb_jobs)
> >>> > +{
> >>> > + ThreadData *td = arg;
> >>> > + YAEPContext *s = ctx->priv;
> >>> > +
> >>> > + const int width = td->width;
> >>> > + const int height = td->height;
> >>> > + const int sat_linesize = s->sat_linesize;
> >>> > +
> >>> > + const int startx = width * jobnr / nb_jobs;
> >>> > + const int endx = width * (jobnr + 1) / nb_jobs;
> >>> > +
> >>> > + uint64_t *sat, *square_sat;
> >>> > + int x, y;
> >>> > +
> >>> > + for (x = startx; x < endx; x++) {
> >>> > + sat = s->sat + x + 1;
> >>> > + square_sat = s->square_sat + x + 1;
> >>> > + for (y = 0; y < height; y++) {
> >>> > + *(sat+sat_linesize) += *sat;
> >>> > + *(square_sat+sat_linesize) += *square_sat;
> >>> > + sat += sat_linesize;
> >>> > + square_sat += sat_linesize;
> >>> > + }
> >>> > + }
> >>> > +
> >>> > + return 0;
> >>> > +}
> >>> > +
> >>> > +#define FILTER_SLICE(type, name)
> >>> > \
> >>> > +static int filter_slice_##name(AVFilterContext *ctx, void *arg, int
> >>> > jobnr, int nb_jobs) \
> >>> > +{
> >>> > \
> >>> > + ThreadData *td = arg;
> >>> > \
> >>> > + YAEPContext *s = ctx->priv;
> >>> > \
> >>> > +
> >>> > \
> >>> > + const int width = td->width;
> >>> > \
> >>> > + const int height = td->height;
> >>> > \
> >>> > + const int src_linesize = td->src_linesize / sizeof(type);
> >>> > \
> >>> > + const int dst_linesize = td->dst_linesize / sizeof(type);
> >>> > \
> >>> > + const int sat_linesize = s->sat_linesize;
> >>> > \
> >>> > + const int sigma = s->sigma;
> >>> > \
> >>> > + const int radius = s->radius;
> >>> > \
> >>> > +
> >>> > \
> >>> > + uint64_t *sat = s->sat;
> >>> > \
> >>> > + uint64_t *square_sat = s->square_sat;
> >>> > \
> >>> > + const type *src = (const type *)td->src;
> >>> > \
> >>> > + type *dst = (type *)td->dst;
> >>> > \
> >>> > +
> >>> > \
> >>> > + const int starty = height * jobnr / nb_jobs;
> >>> > \
> >>> > + const int endy = height * (jobnr + 1) / nb_jobs;
> >>> > \
> >>> > +
> >>> > \
> >>> > + int x, y;
> >>> > \
> >>> > + int lower_x, higher_x;
> >>> > \
> >>> > + int lower_y, higher_y;
> >>> > \
> >>> > + int dist_y, count;
> >>> > \
> >>> > + uint64_t sum, square_sum, mean, var;
> >>> > \
> >>> > +
> >>> > \
> >>> > + for (y = starty; y < endy; y++) {
> >>> > \
> >>> > + lower_y = y - radius < 0 ? 0 : y - radius;
> >>> > \
> >>> > + higher_y = y + radius + 1 > height ? height : y + radius + 1;
> >>> > \
> >>> > + dist_y = higher_y - lower_y;
> >>> > \
> >>> > + for (x = 0; x < width; x++) {
> >>> > \
> >>> > + lower_x = x - radius < 0 ? 0 : x - radius;
> >>> > \
> >>> > + higher_x = x + radius + 1 > width ? width : x + radius +
> >>> > 1;
> >>> > \
> >>> > + count = dist_y * (higher_x - lower_x);
> >>> > \
> >>> > + sum = sat[higher_y * sat_linesize + higher_x]
> >>> > \
> >>> > + - sat[higher_y * sat_linesize + lower_x]
> >>> > \
> >>> > + - sat[lower_y * sat_linesize + higher_x]
> >>> > \
> >>> > + + sat[lower_y * sat_linesize + lower_x];
> >>> > \
> >>> > + square_sum = square_sat[higher_y * sat_linesize +
> >>> > higher_x]
> >>> > \
> >>> > + - square_sat[higher_y * sat_linesize +
> >>> > lower_x]
> >>> > \
> >>> > + - square_sat[lower_y * sat_linesize +
> >>> > higher_x]
> >>> > \
> >>> > + + square_sat[lower_y * sat_linesize +
> >>> > lower_x];
> >>> > \
> >>> > + mean = sum / count;
> >>> > \
> >>> > + var = (square_sum - sum * sum / count) / count;
> >>> > \
> >>> > + dst[y * dst_linesize + x] = (sigma * mean + var * src[y *
> >>> > src_linesize + x]) / (sigma + var); \
> >>> > + }
> >>> > \
> >>> > + }
> >>> > \
> >>> > + return 0;
> >>> > \
> >>> > +}
> >>> > +
> >>> > +FILTER_SLICE(uint8_t, byte)
> >>> > +FILTER_SLICE(uint16_t, word)
> >>> > +
> >>> > +static int filter_frame(AVFilterLink *inlink, AVFrame *in)
> >>> > +{
> >>> > + AVFilterContext *ctx = inlink->dst;
> >>> > + YAEPContext *s = ctx->priv;
> >>> > + AVFilterLink *outlink = ctx->outputs[0];
> >>> > + AVFrame *out;
> >>> > + int plane;
> >>> > + const int nb_threads = ff_filter_get_nb_threads(ctx);
> >>> > + ThreadData td;
> >>> > +
> >>> > + if (av_frame_is_writable(in)) {
> >>> > + out = in;
> >>> > + } else {
> >>> > + out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
> >>> > + if (!out) {
> >>> > + av_frame_free(&in);
> >>> > + return AVERROR(ENOMEM);
> >>> > + }
> >>> > + av_frame_copy_props(out, in);
> >>> > + }
> >>> > +
> >>> > + for (plane = 0; plane < s->nb_planes; plane++) {
> >>> > + if (!s->radius || !(s->planes & (1<<plane))) {
> >>> > + if (out != in) {
> >>> > + av_image_copy_plane(out->data[plane],
> >>> > out->linesize[plane],
> >>> > + in->data[plane],
> >>> > in->linesize[plane],
> >>> > + s->planewidth[plane] * ((s->depth
> >>> > +
> >>> > 7) / 8),
> >>> > + s->planeheight[plane]);
> >>> > + }
> >>> > + continue;
> >>> > + }
> >>> > +
> >>> > + td.width = s->planewidth[plane];
> >>> > + td.height = s->planeheight[plane];
> >>> > + td.src = in->data[plane];
> >>> > + td.src_linesize = in->linesize[plane];
> >>> > + ctx->internal->execute(ctx, s->pre_calculate_row, &td, NULL,
> >>> > FFMIN(td.height, nb_threads));
> >>> > + ctx->internal->execute(ctx, pre_calculate_col, &td, NULL,
> >>> > FFMIN(td.width, nb_threads));
> >>> > +
> >>> > + td.dst = out->data[plane];
> >>> > + td.dst_linesize = out->linesize[plane];
> >>> > + ctx->internal->execute(ctx, s->filter_slice, &td, NULL,
> >>> > FFMIN(td.height, nb_threads));
> >>> > + }
> >>> > +
> >>> > + if (out != in)
> >>> > + av_frame_free(&in);
> >>> > +
> >>> > + return ff_filter_frame(outlink, out);
> >>> > +}
> >>> > +
> >>> > +static int config_input(AVFilterLink *inlink)
> >>> > +{
> >>> > + YAEPContext *s = inlink->dst->priv;
> >>> > + const AVPixFmtDescriptor *desc =
> >>> > av_pix_fmt_desc_get(inlink->format);
> >>> > +
> >>> > + s->depth = desc->comp[0].depth;
> >>> > + 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);
> >>> > + s->planeheight[0] = s->planeheight[3] = inlink->h;
> >>> > + s->nb_planes = av_pix_fmt_count_planes(inlink->format);
> >>> > +
> >>> > + s->radius = FFMIN(s->radius, AV_CEIL_RSHIFT(FFMIN(inlink->w,
> >>> > inlink->h), 1));
> >>> > +
> >>> > + if (s->depth <= 8) {
> >>> > + s->pre_calculate_row = pre_calculate_row_byte;
> >>> > + s->filter_slice = filter_slice_byte;
> >>> > + } else {
> >>> > + s->pre_calculate_row = pre_calculate_row_word;
> >>> > + s->filter_slice = filter_slice_word;
> >>> > + }
> >>> > +
> >>> > + // padding one row on the top, and padding one col on the left,
> >>> > that is why + 1 below
> >>> > + s->sat_linesize = inlink->w + 1;
> >>> > + s->sat = av_mallocz_array(inlink->h + 1,
> >>> > s->sat_linesize*sizeof(*s->sat));
> >>> > + if (!s->sat)
> >>> > + return AVERROR(ENOMEM);
> >>> > +
> >>> > + s->square_sat = av_mallocz_array(inlink->h + 1,
> >>> > s->sat_linesize*sizeof(*s->square_sat));
> >>> > + if (!s->square_sat)
> >>> > + return AVERROR(ENOMEM);
> >>> > +
> >>> > + return 0;
> >>> > +}
> >>> > +
> >>> > +static const AVFilterPad yaep_inputs[] = {
> >>> > + {
> >>> > + .name = "default",
> >>> > + .type = AVMEDIA_TYPE_VIDEO,
> >>> > + .config_props = config_input,
> >>> > + .filter_frame = filter_frame,
> >>> > + },
> >>> > + { NULL }
> >>> > +};
> >>> > +
> >>> > +static const AVFilterPad yaep_outputs[] = {
> >>> > + {
> >>> > + .name = "default",
> >>> > + .type = AVMEDIA_TYPE_VIDEO,
> >>> > + },
> >>> > + { NULL }
> >>> > +};
> >>> > +
> >>> > +#define OFFSET(x) offsetof(YAEPContext, x)
> >>> > +#define FLAGS
> >>> > AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
> >>> > +
> >>> > +static const AVOption yaep_options[] = {
> >>> > + { "radius", "set window radius", OFFSET(radius),
> >>> > AV_OPT_TYPE_INT, {.i64=3}, 0, INT_MAX, .flags=FLAGS },
> >>> > + { "r" , "set window radius", OFFSET(radius),
> >>> > AV_OPT_TYPE_INT, {.i64=3}, 0, INT_MAX, .flags=FLAGS },
> >>> > + { "planes", "set planes to filter", OFFSET(planes),
> >>> > AV_OPT_TYPE_INT, {.i64=1}, 0, 0xF, .flags=FLAGS },
> >>> > + { "p", "set planes to filter", OFFSET(planes),
> >>> > AV_OPT_TYPE_INT, {.i64=1}, 0, 0xF, .flags=FLAGS },
> >>> > + { "sigma", "set blur strength", OFFSET(sigma),
> >>> > AV_OPT_TYPE_INT, {.i64=128}, 1, INT_MAX, .flags=FLAGS },
> >>> > + { "s", "set blur strength", OFFSET(sigma),
> >>> > AV_OPT_TYPE_INT, {.i64=128}, 1, INT_MAX, .flags=FLAGS },
> >>> > + { NULL }
> >>> > +};
> >>> > +
> >>> > +AVFILTER_DEFINE_CLASS(yaep);
> >>> > +
> >>> > +AVFilter ff_vf_yaepblur = {
> >>> > + .name = "yaepblur",
> >>> > + .description = NULL_IF_CONFIG_SMALL("Yet another edge
> >>> > preserving blur filter."),
> >>> > + .priv_size = sizeof(YAEPContext),
> >>> > + .priv_class = &yaep_class,
> >>> > + .uninit = uninit,
> >>> > + .query_formats = query_formats,
> >>> > + .inputs = yaep_inputs,
> >>> > + .outputs = yaep_outputs,
> >>> > + .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC |
> >>> > AVFILTER_FLAG_SLICE_THREADS,
> >>> > + .process_command = ff_filter_process_command,
> >>> > +};
> >>> > --
> >>> > 1.8.3.1
> >>> >
> >>> > _______________________________________________
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> >>> > ffmpeg-devel at ffmpeg.org
> >>> > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
> >>> >
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