| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Copyright (c) 2006 Aurelien Jacobs <aurel@gnuage.org> | ||
| 3 | * Copyright (c) 2010 Mans Rullgard <mans@mansr.com> | ||
| 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 | |||
| 22 | #include <stdint.h> | ||
| 23 | |||
| 24 | #include "config.h" | ||
| 25 | #include "config_components.h" | ||
| 26 | #include "libavutil/attributes.h" | ||
| 27 | #include "vp56dsp.h" | ||
| 28 | #include "libavutil/common.h" | ||
| 29 | |||
| 30 | #define VP56_EDGE_FILTER(pfx, suf, pix_inc, line_inc) \ | ||
| 31 | static void pfx ## _edge_filter_ ## suf(uint8_t *yuv, ptrdiff_t stride, \ | ||
| 32 | int t) \ | ||
| 33 | { \ | ||
| 34 | int pix2_inc = 2 * pix_inc; \ | ||
| 35 | int i, v; \ | ||
| 36 | \ | ||
| 37 | for (i=0; i<12; i++) { \ | ||
| 38 | v = (yuv[-pix2_inc] + 3*(yuv[0]-yuv[-pix_inc]) - yuv[pix_inc] + 4)>>3;\ | ||
| 39 | v = pfx##_adjust(v, t); \ | ||
| 40 | yuv[-pix_inc] = av_clip_uint8(yuv[-pix_inc] + v); \ | ||
| 41 | yuv[0] = av_clip_uint8(yuv[0] - v); \ | ||
| 42 | yuv += line_inc; \ | ||
| 43 | } \ | ||
| 44 | } | ||
| 45 | |||
| 46 | #if CONFIG_VP5_DECODER | ||
| 47 | /* Gives very similar result than the vp6 version except in a few cases */ | ||
| 48 | 1318356 | static int vp5_adjust(int v, int t) | |
| 49 | { | ||
| 50 | 1318356 | int s2, s1 = v >> 31; | |
| 51 | 1318356 | v ^= s1; | |
| 52 | 1318356 | v -= s1; | |
| 53 | 1318356 | v *= v < 2*t; | |
| 54 | 1318356 | v -= t; | |
| 55 | 1318356 | s2 = v >> 31; | |
| 56 | 1318356 | v ^= s2; | |
| 57 | 1318356 | v -= s2; | |
| 58 | 1318356 | v = t - v; | |
| 59 | 1318356 | v += s1; | |
| 60 | 1318356 | v ^= s1; | |
| 61 | 1318356 | return v; | |
| 62 | } | ||
| 63 | |||
| 64 | |||
| 65 |
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1093807 | VP56_EDGE_FILTER(vp5, hor, 1, stride) |
| 66 |
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334412 | VP56_EDGE_FILTER(vp5, ver, stride, 1) |
| 67 | |||
| 68 | 4 | av_cold void ff_vp5dsp_init(VP56DSPContext *s) | |
| 69 | { | ||
| 70 | 4 | s->edge_filter_hor = vp5_edge_filter_hor; | |
| 71 | 4 | s->edge_filter_ver = vp5_edge_filter_ver; | |
| 72 | 4 | } | |
| 73 | #endif /* CONFIG_VP5_DECODER */ | ||
| 74 | |||
| 75 | #if CONFIG_VP6_DECODER | ||
| 76 | 17 | av_cold void ff_vp6dsp_init(VP56DSPContext *s) | |
| 77 | { | ||
| 78 | 17 | s->vp6_filter_diag4 = ff_vp6_filter_diag4_c; | |
| 79 | |||
| 80 | #if ARCH_ARM | ||
| 81 | ff_vp6dsp_init_arm(s); | ||
| 82 | #elif ARCH_X86 | ||
| 83 | 17 | ff_vp6dsp_init_x86(s); | |
| 84 | #endif | ||
| 85 | 17 | } | |
| 86 | #endif /* CONFIG_VP6_DECODER */ | ||
| 87 |