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avfilter/vf_framerate: add SIMD functions for frame blending 

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 <cus@passwd.hu>
This commit is contained in:
Marton Balint 2018-01-08 01:05:45 +01:00
parent 2cbe6bac03
commit 4d95c6d5d7
5 changed files with 268 additions and 54 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

74
libavfilter/framerate.h Normal file
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@ -0,0 +1,74 @@
/*
* 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
*/
#ifndef AVFILTER_FRAMERATE_H
#define AVFILTER_FRAMERATE_H
#include "libavutil/pixelutils.h"
#include "avfilter.h"
#define BLEND_FUNC_PARAMS const uint8_t *src1, ptrdiff_t src1_linesize, \
const uint8_t *src2, ptrdiff_t src2_linesize, \
uint8_t *dst, ptrdiff_t dst_linesize, \
ptrdiff_t width, ptrdiff_t height, \
int factor1, int factor2, int half
#define BLEND_FACTOR_DEPTH8 7
#define BLEND_FACTOR_DEPTH16 15
typedef void (*blend_func)(BLEND_FUNC_PARAMS);
typedef struct FrameRateContext {
const AVClass *class;
// parameters
AVRational dest_frame_rate; ///< output frames per second
int flags; ///< flags affecting frame rate conversion algorithm
double scene_score; ///< score that denotes a scene change has happened
int interp_start; ///< start of range to apply linear interpolation
int interp_end; ///< end of range to apply linear interpolation
int line_size[4]; ///< bytes of pixel data per line for each plane
int vsub;
AVRational srce_time_base; ///< timebase of source
AVRational dest_time_base; ///< timebase of destination
av_pixelutils_sad_fn sad; ///< Sum of the absolute difference function (scene detect only)
double prev_mafd; ///< previous MAFD (scene detect only)
int blend_factor_max;
int bitdepth;
AVFrame *work;
AVFrame *f0; ///< last frame
AVFrame *f1; ///< current frame
int64_t pts0; ///< last frame pts in dest_time_base
int64_t pts1; ///< current frame pts in dest_time_base
int64_t delta; ///< pts1 to pts0 delta
double score; ///< scene change score (f0 to f1)
int flush; ///< 1 if the filter is being flushed
int64_t start_pts; ///< pts of the first output frame
int64_t n; ///< output frame counter
blend_func blend;
} FrameRateContext;
void ff_framerate_init(FrameRateContext *s);
void ff_framerate_init_x86(FrameRateContext *s);
#endif /* AVFILTER_FRAMERATE_H */

70
libavfilter/vf_framerate.c
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@ -38,52 +38,7 @@
#include "avfilter.h"
#include "internal.h"
#include "video.h"
#define BLEND_FUNC_PARAMS const uint8_t *src1, ptrdiff_t src1_linesize, \
const uint8_t *src2, ptrdiff_t src2_linesize, \
uint8_t *dst, ptrdiff_t dst_linesize, \
ptrdiff_t width, ptrdiff_t height, \
int factor1, int factor2, int half
#define BLEND_FACTOR_DEPTH8 7
#define BLEND_FACTOR_DEPTH16 15
typedef void (*blend_func)(BLEND_FUNC_PARAMS);
typedef struct FrameRateContext {
const AVClass *class;
// parameters
AVRational dest_frame_rate; ///< output frames per second
int flags; ///< flags affecting frame rate conversion algorithm
double scene_score; ///< score that denotes a scene change has happened
int interp_start; ///< start of range to apply linear interpolation
int interp_end; ///< end of range to apply linear interpolation
int line_size[4]; ///< bytes of pixel data per line for each plane
int vsub;
AVRational srce_time_base; ///< timebase of source
AVRational dest_time_base; ///< timebase of destination
av_pixelutils_sad_fn sad; ///< Sum of the absolute difference function (scene detect only)
double prev_mafd; ///< previous MAFD (scene detect only)
int blend_factor_max;
int bitdepth;
AVFrame *work;
AVFrame *f0; ///< last frame
AVFrame *f1; ///< current frame
int64_t pts0; ///< last frame pts in dest_time_base
int64_t pts1; ///< current frame pts in dest_time_base
int64_t delta; ///< pts1 to pts0 delta
double score; ///< scene change score (f0 to f1)
int flush; ///< 1 if the filter is being flushed
int64_t start_pts; ///< pts of the first output frame
int64_t n; ///< output frame counter
blend_func blend;
} FrameRateContext;
#include "framerate.h"
#define OFFSET(x) offsetof(FrameRateContext, x)
#define V AV_OPT_FLAG_VIDEO_PARAM
@ -246,7 +201,7 @@ 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;
@ -366,6 +321,19 @@ static void blend_frames16_c(BLEND_FUNC_PARAMS)
}
}
void ff_framerate_init(FrameRateContext *s)
{
if (s->bitdepth == 8) {
s->blend_factor_max = 1 << BLEND_FACTOR_DEPTH8;
s->blend = blend_frames_c;
} else {
s->blend_factor_max = 1 << BLEND_FACTOR_DEPTH16;
s->blend = blend_frames16_c;
}
if (ARCH_X86)
ff_framerate_init_x86(s);
}
static int config_input(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
@ -387,13 +355,7 @@ static int config_input(AVFilterLink *inlink)
s->srce_time_base = inlink->time_base;
if (s->bitdepth == 8) {
s->blend_factor_max = 1 << BLEND_FACTOR_DEPTH8;
s->blend = blend_frames_c;
} else {
s->blend_factor_max = 1 << BLEND_FACTOR_DEPTH16;
s->blend = blend_frames16_c;
}
ff_framerate_init(s);
return 0;
}

2
libavfilter/x86/Makefile
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@ -5,6 +5,7 @@ OBJS-$(CONFIG_COLORSPACE_FILTER) += x86/colorspacedsp_init.o
OBJS-$(CONFIG_EQ_FILTER) += x86/vf_eq.o
OBJS-$(CONFIG_FSPP_FILTER) += x86/vf_fspp_init.o
OBJS-$(CONFIG_GRADFUN_FILTER) += x86/vf_gradfun_init.o
OBJS-$(CONFIG_FRAMERATE_FILTER) += x86/vf_framerate_init.o
OBJS-$(CONFIG_HFLIP_FILTER) += x86/vf_hflip_init.o
OBJS-$(CONFIG_HQDN3D_FILTER) += x86/vf_hqdn3d_init.o
OBJS-$(CONFIG_IDET_FILTER) += x86/vf_idet_init.o
@ -31,6 +32,7 @@ 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

134
libavfilter/x86/vf_framerate.asm Normal file
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@ -0,0 +1,134 @@
;*****************************************************************************
;* 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
BLEND_FRAMES16
%endif

42
libavfilter/x86/vf_framerate_init.c Normal file
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@ -0,0 +1,42 @@
/*
* 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/cpu.h"
#include "libavutil/x86/cpu.h"
#include "libavfilter/framerate.h"
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);
void ff_framerate_init_x86(FrameRateContext *s)
{
int cpu_flags = av_get_cpu_flags();
if (s->bitdepth == 8) {
if (EXTERNAL_AVX2_FAST(cpu_flags))
s->blend = ff_blend_frames_avx2;
else if (EXTERNAL_SSSE3(cpu_flags))
s->blend = ff_blend_frames_ssse3;
} else {
if (EXTERNAL_AVX2_FAST(cpu_flags))
s->blend = ff_blend_frames16_avx2;
else if (EXTERNAL_SSE4(cpu_flags))
s->blend = ff_blend_frames16_sse4;
}
}