Tested using a simple command (apply edge enhance): ./ffmpeg_g -i ~/Downloads/bbb_sunflower_1080p_30fps_normal.mp4 \ -vf convolution="0 0 0 -1 1 0 0 0 0:0 0 0 -1 1 0 0 0 0:0 0 0 -1 1 0 0 0 0:0 0 0 -1 1 0 0 0 0:5:1:1:1:0:128:128:128" \ -an -vframes 1000 -f null /dev/null The fps increase from 151 to 270 on my local machine.
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| 1 | /* | ||
| 2 | * Copyright (c) 2012-2013 Oka Motofumi (chikuzen.mo at gmail dot com) | ||
| 3 | * Copyright (c) 2015 Paul B Mahol | ||
| 4 | * | ||
| 5 | * This file is part of FFmpeg. | ||
| 6 | * | ||
| 7 | * FFmpeg is free software; you can redistribute it and/or | ||
| 8 | * modify it under the terms of the GNU Lesser General Public | ||
| 9 | * License as published by the Free Software Foundation; either | ||
| 10 | * version 2.1 of the License, or (at your option) any later version. | ||
| 11 | * | ||
| 12 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 15 | * Lesser General Public License for more details. | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU Lesser General Public | ||
| 18 | * License along with FFmpeg; if not, write to the Free Software | ||
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 20 | */ | ||
| 21 | #ifndef AVFILTER_CONVOLUTION_H | ||
| 22 | #define AVFILTER_CONVOLUTION_H | ||
| 23 | #include "avfilter.h" | ||
| 24 | |||
| 25 | enum MatrixMode { | ||
| 26 | MATRIX_SQUARE, | ||
| 27 | MATRIX_ROW, | ||
| 28 | MATRIX_COLUMN, | ||
| 29 | MATRIX_NBMODES, | ||
| 30 | }; | ||
| 31 | |||
| 32 | typedef struct ConvolutionContext { | ||
| 33 | const AVClass *class; | ||
| 34 | |||
| 35 | char *matrix_str[4]; | ||
| 36 | float rdiv[4]; | ||
| 37 | float bias[4]; | ||
| 38 | int mode[4]; | ||
| 39 | float scale; | ||
| 40 | float delta; | ||
| 41 | int planes; | ||
| 42 | |||
| 43 | int size[4]; | ||
| 44 | int depth; | ||
| 45 | int max; | ||
| 46 | int bpc; | ||
| 47 | int nb_planes; | ||
| 48 | int nb_threads; | ||
| 49 | int planewidth[4]; | ||
| 50 | int planeheight[4]; | ||
| 51 | int matrix[4][49]; | ||
| 52 | int matrix_length[4]; | ||
| 53 | int copy[4]; | ||
| 54 | |||
| 55 | void (*setup[4])(int radius, const uint8_t *c[], const uint8_t *src, int stride, | ||
| 56 | int x, int width, int y, int height, int bpc); | ||
| 57 | void (*filter[4])(uint8_t *dst, int width, | ||
| 58 | float rdiv, float bias, const int *const matrix, | ||
| 59 | const uint8_t *c[], int peak, int radius, | ||
| 60 | int dstride, int stride); | ||
| 61 | } ConvolutionContext; | ||
| 62 | |||
| 63 | void ff_convolution_init_x86(ConvolutionContext *s); | ||
| 64 | #endif | ||