From 8992cb1d0d07edc33d274f6d7924ecdf6f83d994 Mon Sep 17 00:00:00 2001 From: Tim Redfern Date: Thu, 5 Sep 2013 17:57:22 +0100 Subject: making act segmenter --- ffmpeg/libavfilter/gradfun.h | 47 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 ffmpeg/libavfilter/gradfun.h (limited to 'ffmpeg/libavfilter/gradfun.h') diff --git a/ffmpeg/libavfilter/gradfun.h b/ffmpeg/libavfilter/gradfun.h new file mode 100644 index 0000000..801dddd --- /dev/null +++ b/ffmpeg/libavfilter/gradfun.h @@ -0,0 +1,47 @@ +/* + * Copyright (c) 2010 Nolan Lum + * Copyright (c) 2009 Loren Merritt + * + * 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_GRADFUN_H +#define AVFILTER_GRADFUN_H + +#include "avfilter.h" + +/// Holds instance-specific information for gradfun. +typedef struct GradFunContext { + const AVClass *class; + double strength; ///< user specified strength, used to define thresh + int thresh; ///< threshold for gradient algorithm + int radius; ///< blur radius + int chroma_w; ///< width of the chroma planes + int chroma_h; ///< weight of the chroma planes + int chroma_r; ///< blur radius for the chroma planes + uint16_t *buf; ///< holds image data for blur algorithm passed into filter. + /// DSP functions. + void (*filter_line) (uint8_t *dst, const uint8_t *src, const uint16_t *dc, int width, int thresh, const uint16_t *dithers); + void (*blur_line) (uint16_t *dc, uint16_t *buf, const uint16_t *buf1, const uint8_t *src, int src_linesize, int width); +} GradFunContext; + +void ff_gradfun_init_x86(GradFunContext *gf); + +void ff_gradfun_filter_line_c(uint8_t *dst, const uint8_t *src, const uint16_t *dc, int width, int thresh, const uint16_t *dithers); +void ff_gradfun_blur_line_c(uint16_t *dc, uint16_t *buf, const uint16_t *buf1, const uint8_t *src, int src_linesize, int width); + +#endif /* AVFILTER_GRADFUN_H */ -- cgit v1.2.3