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avfilter/vf_gblur: add x86 SIMD optimizations
The horizontal pass get ~2x performance with the patch under single thread. Tested overall performance using the command(avx2 enabled): ./ffmpeg -i 1080p.mp4 -vf gblur -f null /dev/null ./ffmpeg -i 1080p.mp4 -vf gblur=threads=1 -f null /dev/null For single thread, the fps improves from 43 to 60, about 40%. For multi-thread, the fps improves from 110 to 130, about 20%. Signed-off-by: Ruiling Song <ruiling.song@intel.com>
This commit is contained in:
Ruiling Song
parent
5fc8d87ba6
commit
83f9da7768
55
libavfilter/gblur.h
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55
libavfilter/gblur.h
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@ -0,0 +1,55 @@
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/*
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* Copyright (c) 2011 Pascal Getreuer
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* Copyright (c) 2016 Paul B Mahol
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef AVFILTER_GBLUR_H
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#define AVFILTER_GBLUR_H
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#include "avfilter.h"
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typedef struct GBlurContext {
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const AVClass *class;
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float sigma;
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float sigmaV;
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int steps;
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int planes;
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int depth;
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int planewidth[4];
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int planeheight[4];
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float *buffer;
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float boundaryscale;
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float boundaryscaleV;
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float postscale;
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float postscaleV;
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float nu;
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float nuV;
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int nb_planes;
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void (*horiz_slice)(float *buffer, int width, int height, int steps, float nu, float bscale);
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} GBlurContext;
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void ff_gblur_init(GBlurContext *s);
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void ff_gblur_init_x86(GBlurContext *s);
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#endif
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@ -30,30 +30,10 @@
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#include "libavutil/pixdesc.h"
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#include "libavutil/pixdesc.h"
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#include "avfilter.h"
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#include "avfilter.h"
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#include "formats.h"
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#include "formats.h"
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#include "gblur.h"
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#include "internal.h"
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#include "internal.h"
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#include "video.h"
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#include "video.h"
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typedef struct GBlurContext {
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const AVClass *class;
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float sigma;
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float sigmaV;
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int steps;
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int planes;
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int depth;
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int planewidth[4];
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int planeheight[4];
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float *buffer;
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float boundaryscale;
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float boundaryscaleV;
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float postscale;
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float postscaleV;
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float nu;
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float nuV;
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int nb_planes;
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} GBlurContext;
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#define OFFSET(x) offsetof(GBlurContext, x)
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#define OFFSET(x) offsetof(GBlurContext, x)
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#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
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#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
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@ -72,6 +52,28 @@ typedef struct ThreadData {
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int width;
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int width;
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} ThreadData;
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} ThreadData;
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static void horiz_slice_c(float *buffer, int width, int height, int steps,
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float nu, float bscale)
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{
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int step, x, y;
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float *ptr;
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for (y = 0; y < height; y++) {
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for (step = 0; step < steps; step++) {
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ptr = buffer + width * y;
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ptr[0] *= bscale;
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/* Filter rightwards */
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for (x = 1; x < width; x++)
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ptr[x] += nu * ptr[x - 1];
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ptr[x = width - 1] *= bscale;
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/* Filter leftwards */
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for (; x > 0; x--)
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ptr[x - 1] += nu * ptr[x];
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}
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}
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}
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static int filter_horizontally(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
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static int filter_horizontally(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
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{
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{
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GBlurContext *s = ctx->priv;
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GBlurContext *s = ctx->priv;
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@ -84,27 +86,10 @@ static int filter_horizontally(AVFilterContext *ctx, void *arg, int jobnr, int n
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const int steps = s->steps;
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const int steps = s->steps;
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const float nu = s->nu;
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const float nu = s->nu;
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float *buffer = s->buffer;
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float *buffer = s->buffer;
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int y, x, step;
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float *ptr;
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/* Filter horizontally along each row */
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for (y = slice_start; y < slice_end; y++) {
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for (step = 0; step < steps; step++) {
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ptr = buffer + width * y;
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ptr[0] *= boundaryscale;
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/* Filter rightwards */
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for (x = 1; x < width; x++)
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ptr[x] += nu * ptr[x - 1];
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ptr[x = width - 1] *= boundaryscale;
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/* Filter leftwards */
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for (; x > 0; x--)
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ptr[x - 1] += nu * ptr[x];
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}
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}
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s->horiz_slice(buffer + width * slice_start, width, slice_end - slice_start,
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steps, nu, boundaryscale);
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emms_c();
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return 0;
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return 0;
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}
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}
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@ -231,6 +216,13 @@ static int query_formats(AVFilterContext *ctx)
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return ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
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return ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
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}
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}
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void ff_gblur_init(GBlurContext *s)
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{
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s->horiz_slice = horiz_slice_c;
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if (ARCH_X86_64)
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ff_gblur_init_x86(s);
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}
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static int config_input(AVFilterLink *inlink)
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static int config_input(AVFilterLink *inlink)
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{
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{
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
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@ -251,6 +243,7 @@ static int config_input(AVFilterLink *inlink)
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if (s->sigmaV < 0) {
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if (s->sigmaV < 0) {
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s->sigmaV = s->sigma;
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s->sigmaV = s->sigma;
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}
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}
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ff_gblur_init(s);
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return 0;
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return 0;
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}
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}
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@ -7,6 +7,7 @@ OBJS-$(CONFIG_BWDIF_FILTER) += x86/vf_bwdif_init.o
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OBJS-$(CONFIG_COLORSPACE_FILTER) += x86/colorspacedsp_init.o
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OBJS-$(CONFIG_COLORSPACE_FILTER) += x86/colorspacedsp_init.o
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OBJS-$(CONFIG_EQ_FILTER) += x86/vf_eq.o
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OBJS-$(CONFIG_EQ_FILTER) += x86/vf_eq.o
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OBJS-$(CONFIG_FSPP_FILTER) += x86/vf_fspp_init.o
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OBJS-$(CONFIG_FSPP_FILTER) += x86/vf_fspp_init.o
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OBJS-$(CONFIG_GBLUR_FILTER) += x86/vf_gblur_init.o
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OBJS-$(CONFIG_GRADFUN_FILTER) += x86/vf_gradfun_init.o
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OBJS-$(CONFIG_GRADFUN_FILTER) += x86/vf_gradfun_init.o
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OBJS-$(CONFIG_FRAMERATE_FILTER) += x86/vf_framerate_init.o
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OBJS-$(CONFIG_FRAMERATE_FILTER) += x86/vf_framerate_init.o
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OBJS-$(CONFIG_HFLIP_FILTER) += x86/vf_hflip_init.o
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OBJS-$(CONFIG_HFLIP_FILTER) += x86/vf_hflip_init.o
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@ -41,6 +42,7 @@ X86ASM-OBJS-$(CONFIG_BWDIF_FILTER) += x86/vf_bwdif.o
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X86ASM-OBJS-$(CONFIG_COLORSPACE_FILTER) += x86/colorspacedsp.o
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X86ASM-OBJS-$(CONFIG_COLORSPACE_FILTER) += x86/colorspacedsp.o
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X86ASM-OBJS-$(CONFIG_FRAMERATE_FILTER) += x86/vf_framerate.o
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X86ASM-OBJS-$(CONFIG_FRAMERATE_FILTER) += x86/vf_framerate.o
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X86ASM-OBJS-$(CONFIG_FSPP_FILTER) += x86/vf_fspp.o
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X86ASM-OBJS-$(CONFIG_FSPP_FILTER) += x86/vf_fspp.o
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X86ASM-OBJS-$(CONFIG_GBLUR_FILTER) += x86/vf_gblur.o
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X86ASM-OBJS-$(CONFIG_GRADFUN_FILTER) += x86/vf_gradfun.o
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X86ASM-OBJS-$(CONFIG_GRADFUN_FILTER) += x86/vf_gradfun.o
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X86ASM-OBJS-$(CONFIG_HFLIP_FILTER) += x86/vf_hflip.o
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X86ASM-OBJS-$(CONFIG_HFLIP_FILTER) += x86/vf_hflip.o
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X86ASM-OBJS-$(CONFIG_HQDN3D_FILTER) += x86/vf_hqdn3d.o
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X86ASM-OBJS-$(CONFIG_HQDN3D_FILTER) += x86/vf_hqdn3d.o
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185
libavfilter/x86/vf_gblur.asm
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185
libavfilter/x86/vf_gblur.asm
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;*****************************************************************************
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;* x86-optimized functions for gblur filter
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;*
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;* This file is part of FFmpeg.
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;*
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;* FFmpeg is free software; you can redistribute it and/or
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;* modify it under the terms of the GNU Lesser General Public
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;* License as published by the Free Software Foundation; either
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;* version 2.1 of the License, or (at your option) any later version.
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;*
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;* FFmpeg is distributed in the hope that it will be useful,
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;* but WITHOUT ANY WARRANTY; without even the implied warranty of
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;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;* Lesser General Public License for more details.
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;*
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;* You should have received a copy of the GNU Lesser General Public
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;* License along with FFmpeg; if not, write to the Free Software
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;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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;******************************************************************************
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%include "libavutil/x86/x86util.asm"
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SECTION .text
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; void ff_horiz_slice_sse4(float *ptr, int width, int height, int steps,
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; float nu, float bscale)
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%macro HORIZ_SLICE 0
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%if UNIX64
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cglobal horiz_slice, 4, 9, 9, ptr, width, height, steps, x, y, step, stride, remain
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%else
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cglobal horiz_slice, 4, 9, 9, ptr, width, height, steps, nu, bscale, x, y, step, stride, remain
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%endif
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%if WIN64
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movss m0, num
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movss m1, bscalem
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DEFINE_ARGS ptr, width, height, steps, x, y, step, stride, remain
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%endif
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movsxdifnidn widthq, widthd
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mulss m2, m0, m0 ; nu ^ 2
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mulss m3, m2, m0 ; nu ^ 3
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mulss m4, m3, m0 ; nu ^ 4
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xor xq, xq
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xor yd, yd
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mov strideq, widthq
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; stride = width * 4
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shl strideq, 2
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; w = w - ((w - 1) & 3)
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mov remainq, widthq
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sub remainq, 1
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and remainq, 3
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sub widthq, remainq
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shufps m0, m0, 0
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shufps m2, m2, 0
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shufps m3, m3, 0
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shufps m4, m4, 0
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.loop_y:
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xor stepd, stepd
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.loop_step:
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; p0 *= bscale
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mulss m5, m1, [ptrq + xq * 4]
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movss [ptrq + xq * 4], m5
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inc xq
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; filter rightwards
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; Here we are vectorizing the c version by 4
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; for (x = 1; x < width; x++)
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; ptr[x] += nu * ptr[x - 1];
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; let p0 stands for ptr[x-1], the data from last loop
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; and [p1,p2,p3,p4] be the vector data for this loop.
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; Unrolling the loop, we get:
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; p1' = p1 + p0*nu
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; p2' = p2 + p1*nu + p0*nu^2
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; p3' = p3 + p2*nu + p1*nu^2 + p0*nu^3
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; p4' = p4 + p3*nu + p2*nu^2 + p1*nu^3 + p0*nu^4
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; so we can do it in simd:
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; [p1',p2',p3',p4'] = [p1,p2,p3,p4] + [p0,p1,p2,p3]*nu +
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; [0,p0,p1,p2]*nu^2 + [0,0,p0,p1]*nu^3 +
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; [0,0,0,p0]*nu^4
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.loop_x:
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movu m6, [ptrq + xq * 4] ; s = [p1,p2,p3,p4]
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pslldq m7, m6, 4 ; [0, p1,p2,p3]
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movss m7, m5 ; [p0,p1,p2,p3]
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FMULADD_PS m6, m7, m0, m6, m8 ; s += [p0,p1,p2,p3] * nu
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pslldq m7, 4 ; [0,p0,p1,p2]
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FMULADD_PS m6, m7, m2, m6, m8 ; s += [0,p0,p1,p2] * nu^2
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pslldq m7, 4
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FMULADD_PS m6, m7, m3, m6, m8 ; s += [0,0,p0,p1] * nu^3
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pslldq m7, 4
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FMULADD_PS m6, m7, m4, m6, m8 ; s += [0,0,0,p0] * nu^4
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movu [ptrq + xq * 4], m6
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shufps m5, m6, m6, q3333
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add xq, 4
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cmp xq, widthq
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jl .loop_x
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add widthq, remainq
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cmp xq, widthq
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je .end_scalar
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.loop_scalar:
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; ptr[x] += nu * ptr[x-1]
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movss m5, [ptrq + 4*xq - 4]
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mulss m5, m0
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addss m5, [ptrq + 4*xq]
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movss [ptrq + 4*xq], m5
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inc xq
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cmp xq, widthq
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jl .loop_scalar
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.end_scalar:
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; ptr[width - 1] *= bscale
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dec xq
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mulss m5, m1, [ptrq + 4*xq]
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movss [ptrq + 4*xq], m5
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shufps m5, m5, 0
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; filter leftwards
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; for (; x > 0; x--)
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; ptr[x - 1] += nu * ptr[x];
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; The idea here is basically the same as filter rightwards.
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; But we need to take care as the data layout is different.
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; Let p0 stands for the ptr[x], which is the data from last loop.
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; The way we do it in simd as below:
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; [p-4', p-3', p-2', p-1'] = [p-4, p-3, p-2, p-1]
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; + [p-3, p-2, p-1, p0] * nu
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||||||
|
; + [p-2, p-1, p0, 0] * nu^2
|
||||||
|
; + [p-1, p0, 0, 0] * nu^3
|
||||||
|
; + [p0, 0, 0, 0] * nu^4
|
||||||
|
.loop_x_back:
|
||||||
|
sub xq, 4
|
||||||
|
movu m6, [ptrq + xq * 4] ; s = [p-4, p-3, p-2, p-1]
|
||||||
|
psrldq m7, m6, 4 ; [p-3, p-2, p-1, 0 ]
|
||||||
|
blendps m7, m5, 0x8 ; [p-3, p-2, p-1, p0 ]
|
||||||
|
FMULADD_PS m6, m7, m0, m6, m8 ; s+= [p-3, p-2, p-1, p0 ] * nu
|
||||||
|
psrldq m7, 4 ;
|
||||||
|
FMULADD_PS m6, m7, m2, m6, m8 ; s+= [p-2, p-1, p0, 0] * nu^2
|
||||||
|
psrldq m7, 4
|
||||||
|
FMULADD_PS m6, m7, m3, m6, m8 ; s+= [p-1, p0, 0, 0] * nu^3
|
||||||
|
psrldq m7, 4
|
||||||
|
FMULADD_PS m6, m7, m4, m6, m8 ; s+= [p0, 0, 0, 0] * nu^4
|
||||||
|
movu [ptrq + xq * 4], m6
|
||||||
|
shufps m5, m6, m6, 0 ; m5 = [p-4', p-4', p-4', p-4']
|
||||||
|
cmp xq, remainq
|
||||||
|
jg .loop_x_back
|
||||||
|
|
||||||
|
cmp xq, 0
|
||||||
|
je .end_scalar_back
|
||||||
|
|
||||||
|
.loop_scalar_back:
|
||||||
|
; ptr[x-1] += nu * ptr[x]
|
||||||
|
movss m5, [ptrq + 4*xq]
|
||||||
|
mulss m5, m0
|
||||||
|
addss m5, [ptrq + 4*xq - 4]
|
||||||
|
movss [ptrq + 4*xq - 4], m5
|
||||||
|
dec xq
|
||||||
|
cmp xq, 0
|
||||||
|
jg .loop_scalar_back
|
||||||
|
.end_scalar_back:
|
||||||
|
|
||||||
|
; reset aligned width for next line
|
||||||
|
sub widthq, remainq
|
||||||
|
|
||||||
|
inc stepd
|
||||||
|
cmp stepd, stepsd
|
||||||
|
jl .loop_step
|
||||||
|
|
||||||
|
add ptrq, strideq
|
||||||
|
inc yd
|
||||||
|
cmp yd, heightd
|
||||||
|
jl .loop_y
|
||||||
|
|
||||||
|
RET
|
||||||
|
%endmacro
|
||||||
|
|
||||||
|
%if ARCH_X86_64
|
||||||
|
INIT_XMM sse4
|
||||||
|
HORIZ_SLICE
|
||||||
|
|
||||||
|
INIT_XMM avx2
|
||||||
|
HORIZ_SLICE
|
||||||
|
%endif
|
||||||
36
libavfilter/x86/vf_gblur_init.c
Normal file
36
libavfilter/x86/vf_gblur_init.c
Normal file
@ -0,0 +1,36 @@
|
|||||||
|
/*
|
||||||
|
*
|
||||||
|
* 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
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "libavutil/attributes.h"
|
||||||
|
#include "libavutil/cpu.h"
|
||||||
|
#include "libavutil/x86/cpu.h"
|
||||||
|
#include "libavfilter/gblur.h"
|
||||||
|
|
||||||
|
void ff_horiz_slice_sse4(float *ptr, int width, int height, int steps, float nu, float bscale);
|
||||||
|
void ff_horiz_slice_avx2(float *ptr, int width, int height, int steps, float nu, float bscale);
|
||||||
|
|
||||||
|
av_cold void ff_gblur_init_x86(GBlurContext *s)
|
||||||
|
{
|
||||||
|
int cpu_flags = av_get_cpu_flags();
|
||||||
|
|
||||||
|
if (EXTERNAL_SSE4(cpu_flags))
|
||||||
|
s->horiz_slice = ff_horiz_slice_sse4;
|
||||||
|
if (EXTERNAL_AVX2(cpu_flags))
|
||||||
|
s->horiz_slice = ff_horiz_slice_avx2;
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue
Block a user