FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libswscale/tests/colorspace.c
Date: 2026-09-30 10:56:58
Exec Total Coverage
Lines: 43 58 74.1%
Functions: 1 1 100.0%
Branches: 23 32 71.9%
Line Branch Exec Source
1 /*
2 * Copyright (C) 2002 Michael Niedermayer <michaelni@gmx.at>
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 <stdio.h>
22 #include <string.h> /* for memset() */
23 #include <stdlib.h>
24 #include <inttypes.h>
25
26 #include "libavutil/mem.h"
27
28 #include "libswscale/swscale.h"
29 #include "libswscale/rgb2rgb.h"
30
31 #define SIZE 1000
32 #define srcByte 0x55
33 #define dstByte 0xBB
34
35 #define FUNC(s, d, n) { s, d, #n, n }
36
37 1 int main(int argc, char **argv)
38 {
39 int i, funcNum;
40 1 uint8_t *srcBuffer = av_malloc(SIZE);
41 1 uint8_t *dstBuffer = av_malloc(SIZE);
42 1 int failedNum = 0;
43 1 int passedNum = 0;
44
45
2/4
✓ Branch 0 taken 1 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 1 times.
 1 if (!srcBuffer || !dstBuffer) {
46 ✗ av_free(srcBuffer);
47 ✗ av_free(dstBuffer);
48 ✗ return -1;
49 }
50
51 1 av_log(NULL, AV_LOG_INFO, "memory corruption test ...\n");
52 1 ff_sws_rgb2rgb_init();
53
54 37 for (funcNum = 0; ; funcNum++) {
55 struct func_info_s {
56 int src_bpp;
57 int dst_bpp;
58 const char *name;
59 void (*func)(const uint8_t *src, uint8_t *dst, int src_size);
60 37 } func_info[] = {
61 FUNC(2, 2, rgb12to15),
62 FUNC(2, 2, rgb15to16),
63 FUNC(2, 3, rgb15to24),
64 FUNC(2, 4, rgb15to32),
65 FUNC(2, 3, rgb16to24),
66 FUNC(2, 4, rgb16to32),
67 FUNC(3, 2, rgb24to15),
68 FUNC(3, 2, rgb24to16),
69 FUNC(3, 4, rgb24to32),
70 FUNC(4, 2, rgb32to15),
71 FUNC(4, 2, rgb32to16),
72 FUNC(4, 3, rgb32to24),
73 FUNC(2, 2, rgb16to15),
74 FUNC(2, 2, rgb12tobgr12),
75 FUNC(2, 2, rgb15tobgr15),
76 FUNC(2, 2, rgb15tobgr16),
77 FUNC(2, 3, rgb15tobgr24),
78 FUNC(2, 4, rgb15tobgr32),
79 FUNC(2, 2, rgb16tobgr15),
80 FUNC(2, 2, rgb16tobgr16),
81 FUNC(2, 3, rgb16tobgr24),
82 FUNC(2, 4, rgb16tobgr32),
83 FUNC(3, 2, rgb24tobgr15),
84 FUNC(3, 2, rgb24tobgr16),
85 FUNC(3, 3, rgb24tobgr24),
86 FUNC(3, 4, rgb24tobgr32),
87 FUNC(4, 2, rgb32tobgr15),
88 FUNC(4, 2, rgb32tobgr16),
89 FUNC(4, 3, rgb32tobgr24),
90 FUNC(4, 4, shuffle_bytes_2103), /* rgb32tobgr32 */
91 FUNC(6, 6, rgb48tobgr48_nobswap),
92 FUNC(6, 6, rgb48tobgr48_bswap),
93 FUNC(8, 6, rgb64to48_nobswap),
94 FUNC(8, 6, rgb64to48_bswap),
95 FUNC(8, 6, rgb64tobgr48_nobswap),
96 FUNC(8, 6, rgb64tobgr48_bswap),
97 FUNC(0, 0, NULL)
98 };
99 int width;
100 37 int failed = 0;
101 37 int srcBpp = 0;
102 37 int dstBpp = 0;
103
104
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 36 times.
 37 if (!func_info[funcNum].func)
105 1 break;
106
107 36 av_log(NULL, AV_LOG_INFO, ".");
108 36 memset(srcBuffer, srcByte, SIZE);
109
110
2/2
✓ Branch 0 taken 2268 times.
✓ Branch 1 taken 36 times.
 2304 for (width = 63; width > 0; width--) {
111 int dstOffset;
112
2/2
✓ Branch 0 taken 38556 times.
✓ Branch 1 taken 2268 times.
 40824 for (dstOffset = 128; dstOffset < 196; dstOffset += 4) {
113 int srcOffset;
114 38556 memset(dstBuffer, dstByte, SIZE);
115
116
2/2
✓ Branch 0 taken 655452 times.
✓ Branch 1 taken 38556 times.
 694008 for (srcOffset = 128; srcOffset < 196; srcOffset += 4) {
117 655452 uint8_t *src = srcBuffer + srcOffset;
118 655452 uint8_t *dst = dstBuffer + dstOffset;
119 655452 const char *name = NULL;
120
121 // don't fill the screen with shit ...
122
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 655452 times.
 655452 if (failed)
123 ✗ break;
124
125 655452 srcBpp = func_info[funcNum].src_bpp;
126 655452 dstBpp = func_info[funcNum].dst_bpp;
127 655452 name = func_info[funcNum].name;
128
129 655452 func_info[funcNum].func(src, dst, width * srcBpp);
130
131
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 655452 times.
 655452 if (!srcBpp)
132 ✗ break;
133
134
2/2
✓ Branch 0 taken 655452000 times.
✓ Branch 1 taken 655452 times.
 656107452 for (i = 0; i < SIZE; i++) {
135
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 655452000 times.
 655452000 if (srcBuffer[i] != srcByte) {
136 ✗ av_log(NULL, AV_LOG_INFO,
137 "src damaged at %d w:%d src:%d dst:%d %s\n",
138 i, width, srcOffset, dstOffset, name);
139 ✗ failed = 1;
140 ✗ break;
141 }
142 }
143
2/2
✓ Branch 0 taken 104872320 times.
✓ Branch 1 taken 655452 times.
 105527772 for (i = 0; i < dstOffset; i++) {
144
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 104872320 times.
 104872320 if (dstBuffer[i] != dstByte) {
145 ✗ av_log(NULL, AV_LOG_INFO,
146 "dst damaged at %d w:%d src:%d dst:%d %s\n",
147 i, width, srcOffset, dstOffset, name);
148 ✗ failed = 1;
149 ✗ break;
150 }
151 }
152
2/2
✓ Branch 0 taken 482412672 times.
✓ Branch 1 taken 655452 times.
 483068124 for (i = dstOffset + width * dstBpp; i < SIZE; i++) {
153
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 482412672 times.
 482412672 if (dstBuffer[i] != dstByte) {
154 ✗ av_log(NULL, AV_LOG_INFO,
155 "dst damaged at %d w:%d src:%d dst:%d %s\n",
156 i, width, srcOffset, dstOffset, name);
157 ✗ failed = 1;
158 ✗ break;
159 }
160 }
161 }
162 }
163 }
164
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 36 times.
 36 if (failed)
165 ✗ failedNum++;
166
1/2
✓ Branch 0 taken 36 times.
✗ Branch 1 not taken.
 36 else if (srcBpp)
167 36 passedNum++;
168 }
169
170 1 av_log(NULL, AV_LOG_INFO,
171 "\n%d converters passed, %d converters randomly overwrote memory\n",
172 passedNum, failedNum);
173 1 av_free(srcBuffer);
174 1 av_free(dstBuffer);
175 1 return failedNum;
176 }
177