Blend function speedups on x86_64 Core i5 4460:
ffmpeg -f lavfi -i allyuv -vf framerate=60:threads=1 -f null none
C: 447548411 decicycles in Blend, 2048 runs, 0 skips
SSSE3: 130020087 decicycles in Blend, 2048 runs, 0 skips
AVX2: 128508221 decicycles in Blend, 2048 runs, 0 skips
ffmpeg -f lavfi -i allyuv -vf format=yuv420p12,framerate=60:threads=1 -f null
none
C: 228932745 decicycles in Blend, 2048 runs, 0 skips
SSE4: 123357781 decicycles in Blend, 2048 runs, 0 skips
AVX2: 121215353 decicycles in Blend, 2048 runs, 0 skips
Signed-off-by: Marton Balint <c...@passwd.hu>
---
libavfilter/vf_framerate.c | 24 ++++++-
libavfilter/x86/Makefile | 1 +
libavfilter/x86/vf_framerate.asm | 136 +++++++++++++++++++++++++++++++++++++++
3 files changed, 158 insertions(+), 3 deletions(-)
create mode 100644 libavfilter/x86/vf_framerate.asm
diff --git a/libavfilter/vf_framerate.c b/libavfilter/vf_framerate.c
index d315ef5d09..6a3b85910f 100644
--- a/libavfilter/vf_framerate.c
+++ b/libavfilter/vf_framerate.c
@@ -29,11 +29,13 @@
#define DEBUG
#include "libavutil/avassert.h"
+#include "libavutil/cpu.h"
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libavutil/pixelutils.h"
+#include "libavutil/x86/cpu.h"
#include "avfilter.h"
#include "internal.h"
@@ -246,7 +248,7 @@ static int blend_frames(AVFilterContext *ctx, int
interpolate)
av_frame_copy_props(s->work, s->f0);
ff_dlog(ctx, "blend_frames() INTERPOLATE to create work frame\n");
- ctx->internal->execute(ctx, filter_slice, &td, NULL, FFMIN(outlink->h,
ff_filter_get_nb_threads(ctx)));
+ ctx->internal->execute(ctx, filter_slice, &td, NULL, FFMIN(FFMAX(1,
outlink->h >> 2), ff_filter_get_nb_threads(ctx)));
return 1;
}
return 0;
@@ -347,6 +349,11 @@ static void blend_frames_c(BLEND_FUNC_PARAMS)
}
}
+void ff_blend_frames_ssse3(BLEND_FUNC_PARAMS);
+void ff_blend_frames_avx2(BLEND_FUNC_PARAMS);
+void ff_blend_frames16_sse4(BLEND_FUNC_PARAMS);
+void ff_blend_frames16_avx2(BLEND_FUNC_PARAMS);
+
static void blend_frames16_c(BLEND_FUNC_PARAMS)
{
int line, pixel;
@@ -371,6 +378,7 @@ static int config_input(AVFilterLink *inlink)
AVFilterContext *ctx = inlink->dst;
FrameRateContext *s = ctx->priv;
const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(inlink->format);
+ int cpu_flags = av_get_cpu_flags();
int plane;
for (plane = 0; plane < 4; plane++) {
@@ -389,10 +397,20 @@ static int config_input(AVFilterLink *inlink)
if (s->bitdepth == 8) {
s->blend_factor_max = 1 << BLEND_FACTOR_DEPTH8;
- s->blend = blend_frames_c;
+ if (ARCH_X86 && EXTERNAL_AVX2_FAST(cpu_flags))
+ s->blend = ff_blend_frames_avx2;
+ else if (ARCH_X86 && EXTERNAL_SSSE3(cpu_flags))
+ s->blend = ff_blend_frames_ssse3;
+ else
+ s->blend = blend_frames_c;
} else {
s->blend_factor_max = 1 << BLEND_FACTOR_DEPTH16;
- s->blend = blend_frames16_c;
+ if (ARCH_X86 && EXTERNAL_AVX2_FAST(cpu_flags))
+ s->blend = ff_blend_frames16_avx2;
+ else if (ARCH_X86 && EXTERNAL_SSE4(cpu_flags))
+ s->blend = ff_blend_frames16_sse4;
+ else
+ s->blend = blend_frames16_c;
}
return 0;
diff --git a/libavfilter/x86/Makefile b/libavfilter/x86/Makefile
index 2fc5c62644..07fc0f9486 100644
--- a/libavfilter/x86/Makefile
+++ b/libavfilter/x86/Makefile
@@ -31,6 +31,7 @@ X86ASM-OBJS-$(CONFIG_AFIR_FILTER) += x86/af_afir.o
X86ASM-OBJS-$(CONFIG_BLEND_FILTER) += x86/vf_blend.o
X86ASM-OBJS-$(CONFIG_BWDIF_FILTER) += x86/vf_bwdif.o
X86ASM-OBJS-$(CONFIG_COLORSPACE_FILTER) += x86/colorspacedsp.o
+X86ASM-OBJS-$(CONFIG_FRAMERATE_FILTER) += x86/vf_framerate.o
X86ASM-OBJS-$(CONFIG_FSPP_FILTER) += x86/vf_fspp.o
X86ASM-OBJS-$(CONFIG_GRADFUN_FILTER) += x86/vf_gradfun.o
X86ASM-OBJS-$(CONFIG_HFLIP_FILTER) += x86/vf_hflip.o
diff --git a/libavfilter/x86/vf_framerate.asm b/libavfilter/x86/vf_framerate.asm
new file mode 100644
index 0000000000..34dcff7891
--- /dev/null
+++ b/libavfilter/x86/vf_framerate.asm
@@ -0,0 +1,136 @@
+;*****************************************************************************
+;* x86-optimized functions for framerate filter
+;*
+;* Copyright (C) 2018 Marton Balint
+;*
+;* Based on vf_blend.asm, Copyright (C) 2015 Paul B Mahol
+;*
+;* 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/x86/x86util.asm"
+
+SECTION .text
+
+
+%macro XSPLAT 3
+%if cpuflag(avx2)
+ vpbroadcast%3 %1, %2
+%else
+ movd %1, %2
+%ifidn %3, d
+ SPLATD %1
+%else
+ SPLATW %1, %1
+%endif
+%endif
+%endmacro
+
+
+%macro BLEND_INIT 0-1
+%if ARCH_X86_64
+cglobal blend_frames%1, 6, 9, 5, src1, src1_linesize, src2, src2_linesize,
dst, dst_linesize, width, end, x
+ mov widthd, dword widthm
+%else
+cglobal blend_frames%1, 5, 7, 5, src1, src1_linesize, src2, src2_linesize,
dst, end, x
+%define dst_linesizeq r5mp
+%define widthq r6mp
+%endif
+ mov endd, dword r7m
+ add src1q, widthq
+ add src2q, widthq
+ add dstq, widthq
+ neg widthq
+%endmacro
+
+
+%macro BLEND_LOOP 4
+.nextrow:
+ mov xq, widthq
+
+ .loop:
+ movu m0, [src1q + xq]
+ movu m1, [src2q + xq]
+ SBUTTERFLY %1%2, 0, 1, 4 ; aAbBcCdD
+ ; eEfFgGhH
+ pmadd%3 m0, m2
+ pmadd%3 m1, m2
+
+ padd%2 m0, m3
+ padd%2 m1, m3
+ psrl%2 m0, %4 ; 0A0B0C0D
+ psrl%2 m1, %4 ; 0E0F0G0H
+
+ packus%2%1 m0, m1 ; ABCDEFGH
+ movu [dstq + xq], m0
+ add xq, mmsize
+ jl .loop
+ add src1q, src1_linesizeq
+ add src2q, src2_linesizeq
+ add dstq, dst_linesizeq
+ sub endd, 1
+ jg .nextrow
+REP_RET
+%endmacro
+
+
+%macro BLEND_FRAMES 0
+ BLEND_INIT
+
+ XSPLAT m2, r8m, w ; factor1
+ XSPLAT m3, r9m, w ; factor2
+
+ psllw m3, 8
+ por m2, m3 ; interleaved factors
+
+ XSPLAT m3, r10m, w ; half
+
+ BLEND_LOOP b, w, ubsw, 7
+%endmacro
+
+
+%macro BLEND_FRAMES16 0
+ BLEND_INIT 16
+
+ XSPLAT m2, r8m, d ; factor1
+ XSPLAT m3, r9m, d ; factor2
+
+ pslld m3, 16
+ por m2, m3 ; interleaved factors
+
+ XSPLAT m3, r10m, d ; half
+
+ BLEND_LOOP w, d, wd, 15
+%endmacro
+
+
+INIT_XMM ssse3
+BLEND_FRAMES
+
+INIT_XMM sse4
+BLEND_FRAMES16
+
+
+%if HAVE_AVX2_EXTERNAL
+
+INIT_YMM avx2
+BLEND_FRAMES
+
+INIT_YMM avx2
+BLEND_FRAMES16
+
+%endif
--
2.13.6
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