1
0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
FFmpeg/libavfilter/removegrain.h
James Darnley bff7242608 avfilter/vf_removegrain: add x86 and x86_64 SSE2 functions
Speed of all modes increased by a factor between 7.4 and 19.8 largely depending
on whether bytes are unpacked into words.  Modes 2, 3, and 4 have been sped-up
by a factor of 43 (thanks quick sort!)

All modes are available on x86_64 but only modes 1, 10, 11, 12, 13, 14, 19, 20,
21, and 22 are available on x86 due to the number of SIMD registers used.

With a contribution from James Almer <jamrial@gmail.com>
2015-07-14 23:50:50 +00:00

41 lines
1.3 KiB
C

/*
* Copyright (c) 2015 Paul B Mahol
* Copyright (c) 2015 James Darnley
*
* 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 "avfilter.h"
typedef struct RemoveGrainContext {
const AVClass *class;
int mode[4];
int nb_planes;
int planewidth[4];
int planeheight[4];
int skip_even;
int skip_odd;
int (*rg[4])(int c, int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8);
void (*fl[4])(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int pixels);
} RemoveGrainContext;
void ff_removegrain_init_x86(RemoveGrainContext *rg);