From d5f187fd3355ec6d4922d8479930c10d1b6f9ebf Mon Sep 17 00:00:00 2001 From: Nolan L Date: Sun, 12 Dec 2010 17:59:10 +0000 Subject: Add gradfun filter, ported from MPlayer. Patch by Nolan L nol888 <=> gmail >=< com. See thread: Subject: [FFmpeg-devel] [PATCH] Port gradfun to libavfilter (GCI) Date: Mon, 29 Nov 2010 07:18:14 -0500 Originally committed as revision 25942 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavfilter/gradfun.h | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 libavfilter/gradfun.h (limited to 'libavfilter/gradfun.h') diff --git a/libavfilter/gradfun.h b/libavfilter/gradfun.h new file mode 100644 index 0000000000..3dacbcb252 --- /dev/null +++ b/libavfilter/gradfun.h @@ -0,0 +1,48 @@ +/* + * 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 { + 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, uint8_t *src, uint16_t *dc, int width, int thresh, const uint16_t *dithers); + void (*blur_line) (uint16_t *dc, uint16_t *buf, uint16_t *buf1, uint8_t *src, int src_linesize, int width); +} GradFunContext; + +void ff_gradfun_filter_line_c(uint8_t *dst, uint8_t *src, uint16_t *dc, int width, int thresh, const uint16_t *dithers); +void ff_gradfun_blur_line_c(uint16_t *dc, uint16_t *buf, uint16_t *buf1, uint8_t *src, int src_linesize, int width); + +void ff_gradfun_filter_line_mmx2(uint8_t *dst, uint8_t *src, uint16_t *dc, int width, int thresh, const uint16_t *dithers); +void ff_gradfun_filter_line_ssse3(uint8_t *dst, uint8_t *src, uint16_t *dc, int width, int thresh, const uint16_t *dithers); + +void ff_gradfun_blur_line_sse2(uint16_t *dc, uint16_t *buf, uint16_t *buf1, uint8_t *src, int src_linesize, int width); + +#endif /* AVFILTER_GRADFUN_H */ -- cgit v1.2.3