FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/cfhddsp.c
Date: 2021-09-23 20:34:37
Exec Total Coverage
Lines: 51 54 94.4%
Branches: 19 20 95.0%

Line Branch Exec Source
1 /*
2 * Copyright (c) 2015-2016 Kieran Kunhya <kieran@kunhya.com>
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include "libavutil/attributes.h"
22 #include "libavutil/common.h"
23
24 #include "cfhddsp.h"
25
26 158158 static av_always_inline void filter(int16_t *output, ptrdiff_t out_stride,
27 const int16_t *low, ptrdiff_t low_stride,
28 const int16_t *high, ptrdiff_t high_stride,
29 int len, int clip)
30 {
31 int16_t tmp;
32 int i;
33
34 158158 tmp = (11*low[0*low_stride] - 4*low[1*low_stride] + low[2*low_stride] + 4) >> 3;
35 158158 output[(2*0+0)*out_stride] = (tmp + high[0*high_stride]) >> 1;
36
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158158 if (clip)
37 39864 output[(2*0+0)*out_stride] = av_clip_uintp2_c(output[(2*0+0)*out_stride], clip);
38
39 158158 tmp = ( 5*low[0*low_stride] + 4*low[1*low_stride] - low[2*low_stride] + 4) >> 3;
40 158158 output[(2*0+1)*out_stride] = (tmp - high[0*high_stride]) >> 1;
41
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158158 if (clip)
42 39864 output[(2*0+1)*out_stride] = av_clip_uintp2_c(output[(2*0+1)*out_stride], clip);
43
44
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28341698 for (i = 1; i < len - 1; i++) {
45 28183540 tmp = (low[(i-1)*low_stride] - low[(i+1)*low_stride] + 4) >> 3;
46 28183540 output[(2*i+0)*out_stride] = (tmp + low[i*low_stride] + high[i*high_stride]) >> 1;
47
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28183540 if (clip)
48 10777360 output[(2*i+0)*out_stride] = av_clip_uintp2_c(output[(2*i+0)*out_stride], clip);
49
50 28183540 tmp = (low[(i+1)*low_stride] - low[(i-1)*low_stride] + 4) >> 3;
51 28183540 output[(2*i+1)*out_stride] = (tmp + low[i*low_stride] - high[i*high_stride]) >> 1;
52
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28183540 if (clip)
53 10777360 output[(2*i+1)*out_stride] = av_clip_uintp2_c(output[(2*i+1)*out_stride], clip);
54 }
55
56 158158 tmp = ( 5*low[i*low_stride] + 4*low[(i-1)*low_stride] - low[(i-2)*low_stride] + 4) >> 3;
57 158158 output[(2*i+0)*out_stride] = (tmp + high[i*high_stride]) >> 1;
58
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158158 if (clip)
59 39864 output[(2*i+0)*out_stride] = av_clip_uintp2_c(output[(2*i+0)*out_stride], clip);
60
61 158158 tmp = (11*low[i*low_stride] - 4*low[(i-1)*low_stride] + low[(i-2)*low_stride] + 4) >> 3;
62 158158 output[(2*i+1)*out_stride] = (tmp - high[i*high_stride]) >> 1;
63
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158158 if (clip)
64 39864 output[(2*i+1)*out_stride] = av_clip_uintp2_c(output[(2*i+1)*out_stride], clip);
65 158158 }
66
67 594 static void vert_filter(int16_t *output, ptrdiff_t out_stride,
68 const int16_t *low, ptrdiff_t low_stride,
69 const int16_t *high, ptrdiff_t high_stride,
70 int width, int height)
71 {
72
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88990 for (int i = 0; i < width; i++) {
73 88396 filter(output, out_stride, low, low_stride, high, high_stride, height, 0);
74 88396 low++;
75 88396 high++;
76 88396 output++;
77 }
78 594 }
79
80 198 static void horiz_filter(int16_t *output, ptrdiff_t ostride,
81 const int16_t *low, ptrdiff_t lstride,
82 const int16_t *high, ptrdiff_t hstride,
83 int width, int height)
84 {
85
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30096 for (int i = 0; i < height; i++) {
86 29898 filter(output, 1, low, 1, high, 1, width, 0);
87 29898 low += lstride;
88 29898 high += hstride;
89 29898 output += ostride * 2;
90 }
91 198 }
92
93 39864 static void horiz_filter_clip(int16_t *output, const int16_t *low, const int16_t *high,
94 int width, int clip)
95 {
96 39864 filter(output, 1, low, 1, high, 1, width, clip);
97 39864 }
98
99 static void horiz_filter_clip_bayer(int16_t *output, const int16_t *low, const int16_t *high,
100 int width, int clip)
101 {
102 filter(output, 2, low, 1, high, 1, width, clip);
103 }
104
105 6 av_cold void ff_cfhddsp_init(CFHDDSPContext *c, int depth, int bayer)
106 {
107 6 c->horiz_filter = horiz_filter;
108 6 c->vert_filter = vert_filter;
109
110
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6 if (bayer)
111 c->horiz_filter_clip = horiz_filter_clip_bayer;
112 else
113 6 c->horiz_filter_clip = horiz_filter_clip;
114
115 if (ARCH_X86)
116 6 ff_cfhddsp_init_x86(c, depth, bayer);
117 6 }
118