[FFmpeg-devel] [PATCH] avfilter/vf_yaepblur: add yaepblur filter
Tao Zhang
nowerzt at gmail.com
Tue Dec 3 11:26:26 EET 2019
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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