diff options
Diffstat (limited to 'ffmpeg/libavcodec/vp56dsp.c')
| -rw-r--r-- | ffmpeg/libavcodec/vp56dsp.c | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/ffmpeg/libavcodec/vp56dsp.c b/ffmpeg/libavcodec/vp56dsp.c deleted file mode 100644 index fa533ec..0000000 --- a/ffmpeg/libavcodec/vp56dsp.c +++ /dev/null @@ -1,98 +0,0 @@ -/* - * Copyright (c) 2006 Aurelien Jacobs <aurel@gnuage.org> - * Copyright (c) 2010 Mans Rullgard <mans@mansr.com> - * - * 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 <stdint.h> - -#include "libavutil/attributes.h" -#include "avcodec.h" -#include "vp56dsp.h" -#include "libavutil/common.h" - -/* Gives very similar result than the vp6 version except in a few cases */ -static int vp5_adjust(int v, int t) -{ - int s2, s1 = v >> 31; - v ^= s1; - v -= s1; - v *= v < 2*t; - v -= t; - s2 = v >> 31; - v ^= s2; - v -= s2; - v = t - v; - v += s1; - v ^= s1; - return v; -} - -static int vp6_adjust(int v, int t) -{ - int V = v, s = v >> 31; - V ^= s; - V -= s; - if (V-t-1 >= (unsigned)(t-1)) - return v; - V = 2*t - V; - V += s; - V ^= s; - return V; -} - - -#define VP56_EDGE_FILTER(pfx, suf, pix_inc, line_inc) \ -static void pfx##_edge_filter_##suf(uint8_t *yuv, int stride, int t) \ -{ \ - int pix2_inc = 2 * pix_inc; \ - int i, v; \ - \ - for (i=0; i<12; i++) { \ - v = (yuv[-pix2_inc] + 3*(yuv[0]-yuv[-pix_inc]) - yuv[pix_inc] + 4)>>3;\ - v = pfx##_adjust(v, t); \ - yuv[-pix_inc] = av_clip_uint8(yuv[-pix_inc] + v); \ - yuv[0] = av_clip_uint8(yuv[0] - v); \ - yuv += line_inc; \ - } \ -} - -VP56_EDGE_FILTER(vp5, hor, 1, stride) -VP56_EDGE_FILTER(vp5, ver, stride, 1) -VP56_EDGE_FILTER(vp6, hor, 1, stride) -VP56_EDGE_FILTER(vp6, ver, stride, 1) - -av_cold void ff_vp56dsp_init(VP56DSPContext *s, enum AVCodecID codec) -{ - if (codec == AV_CODEC_ID_VP5) { - s->edge_filter_hor = vp5_edge_filter_hor; - s->edge_filter_ver = vp5_edge_filter_ver; - } else { - s->edge_filter_hor = vp6_edge_filter_hor; - s->edge_filter_ver = vp6_edge_filter_ver; - - if (CONFIG_VP6_DECODER) { - s->vp6_filter_diag4 = ff_vp6_filter_diag4_c; - - if (ARCH_ARM) - ff_vp6dsp_init_arm(s, codec); - if (ARCH_X86) - ff_vp6dsp_init_x86(s, codec); - } - } -} |