2 Copyright (C) 2012-2018 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
6 DCP-o-matic is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 DCP-o-matic 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
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
21 /** @file test/image_test.cc
22 * @brief Test Image class.
23 * @ingroup selfcontained
24 * @see test/make_black_test.cc, test/pixel_formats_test.cc
27 #include "lib/image.h"
28 #include "lib/ffmpeg_image_proxy.h"
30 #include <boost/test/unit_test.hpp>
36 using boost::shared_ptr;
38 BOOST_AUTO_TEST_CASE (aligned_image_test)
40 Image* s = new Image (AV_PIX_FMT_RGB24, dcp::Size (50, 50), true);
41 BOOST_CHECK_EQUAL (s->planes(), 1);
42 /* 160 is 150 aligned to the nearest 32 bytes */
43 BOOST_CHECK_EQUAL (s->stride()[0], 160);
44 BOOST_CHECK_EQUAL (s->line_size()[0], 150);
45 BOOST_CHECK (s->data()[0]);
46 BOOST_CHECK (!s->data()[1]);
47 BOOST_CHECK (!s->data()[2]);
48 BOOST_CHECK (!s->data()[3]);
50 /* copy constructor */
51 Image* t = new Image (*s);
52 BOOST_CHECK_EQUAL (t->planes(), 1);
53 BOOST_CHECK_EQUAL (t->stride()[0], 160);
54 BOOST_CHECK_EQUAL (t->line_size()[0], 150);
55 BOOST_CHECK (t->data()[0]);
56 BOOST_CHECK (!t->data()[1]);
57 BOOST_CHECK (!t->data()[2]);
58 BOOST_CHECK (!t->data()[3]);
59 BOOST_CHECK (t->data() != s->data());
60 BOOST_CHECK (t->data()[0] != s->data()[0]);
61 BOOST_CHECK (t->line_size() != s->line_size());
62 BOOST_CHECK_EQUAL (t->line_size()[0], s->line_size()[0]);
63 BOOST_CHECK (t->stride() != s->stride());
64 BOOST_CHECK_EQUAL (t->stride()[0], s->stride()[0]);
66 /* assignment operator */
67 Image* u = new Image (AV_PIX_FMT_YUV422P, dcp::Size (150, 150), false);
69 BOOST_CHECK_EQUAL (u->planes(), 1);
70 BOOST_CHECK_EQUAL (u->stride()[0], 160);
71 BOOST_CHECK_EQUAL (u->line_size()[0], 150);
72 BOOST_CHECK (u->data()[0]);
73 BOOST_CHECK (!u->data()[1]);
74 BOOST_CHECK (!u->data()[2]);
75 BOOST_CHECK (!u->data()[3]);
76 BOOST_CHECK (u->data() != s->data());
77 BOOST_CHECK (u->data()[0] != s->data()[0]);
78 BOOST_CHECK (u->line_size() != s->line_size());
79 BOOST_CHECK_EQUAL (u->line_size()[0], s->line_size()[0]);
80 BOOST_CHECK (u->stride() != s->stride());
81 BOOST_CHECK_EQUAL (u->stride()[0], s->stride()[0]);
88 BOOST_AUTO_TEST_CASE (compact_image_test)
90 Image* s = new Image (AV_PIX_FMT_RGB24, dcp::Size (50, 50), false);
91 BOOST_CHECK_EQUAL (s->planes(), 1);
92 BOOST_CHECK_EQUAL (s->stride()[0], 50 * 3);
93 BOOST_CHECK_EQUAL (s->line_size()[0], 50 * 3);
94 BOOST_CHECK (s->data()[0]);
95 BOOST_CHECK (!s->data()[1]);
96 BOOST_CHECK (!s->data()[2]);
97 BOOST_CHECK (!s->data()[3]);
99 /* copy constructor */
100 Image* t = new Image (*s);
101 BOOST_CHECK_EQUAL (t->planes(), 1);
102 BOOST_CHECK_EQUAL (t->stride()[0], 50 * 3);
103 BOOST_CHECK_EQUAL (t->line_size()[0], 50 * 3);
104 BOOST_CHECK (t->data()[0]);
105 BOOST_CHECK (!t->data()[1]);
106 BOOST_CHECK (!t->data()[2]);
107 BOOST_CHECK (!t->data()[3]);
108 BOOST_CHECK (t->data() != s->data());
109 BOOST_CHECK (t->data()[0] != s->data()[0]);
110 BOOST_CHECK (t->line_size() != s->line_size());
111 BOOST_CHECK_EQUAL (t->line_size()[0], s->line_size()[0]);
112 BOOST_CHECK (t->stride() != s->stride());
113 BOOST_CHECK_EQUAL (t->stride()[0], s->stride()[0]);
115 /* assignment operator */
116 Image* u = new Image (AV_PIX_FMT_YUV422P, dcp::Size (150, 150), true);
118 BOOST_CHECK_EQUAL (u->planes(), 1);
119 BOOST_CHECK_EQUAL (u->stride()[0], 50 * 3);
120 BOOST_CHECK_EQUAL (u->line_size()[0], 50 * 3);
121 BOOST_CHECK (u->data()[0]);
122 BOOST_CHECK (!u->data()[1]);
123 BOOST_CHECK (!u->data()[2]);
124 BOOST_CHECK (!u->data()[3]);
125 BOOST_CHECK (u->data() != s->data());
126 BOOST_CHECK (u->data()[0] != s->data()[0]);
127 BOOST_CHECK (u->line_size() != s->line_size());
128 BOOST_CHECK_EQUAL (u->line_size()[0], s->line_size()[0]);
129 BOOST_CHECK (u->stride() != s->stride());
130 BOOST_CHECK_EQUAL (u->stride()[0], s->stride()[0]);
138 alpha_blend_test_one (AVPixelFormat format, string suffix)
140 shared_ptr<FFmpegImageProxy> proxy (new FFmpegImageProxy (private_data / "prophet_frame.tiff"));
141 shared_ptr<Image> raw = proxy->image().first;
142 shared_ptr<Image> background = raw->convert_pixel_format (dcp::YUV_TO_RGB_REC709, format, true, false);
144 shared_ptr<Image> overlay (new Image (AV_PIX_FMT_BGRA, dcp::Size(431, 891), true));
145 overlay->make_transparent ();
147 for (int y = 0; y < 128; ++y) {
148 uint8_t* p = overlay->data()[0] + y * overlay->stride()[0];
149 for (int x = 0; x < 128; ++x) {
155 for (int y = 128; y < 256; ++y) {
156 uint8_t* p = overlay->data()[0] + y * overlay->stride()[0];
157 for (int x = 0; x < 128; ++x) {
163 for (int y = 256; y < 384; ++y) {
164 uint8_t* p = overlay->data()[0] + y * overlay->stride()[0];
165 for (int x = 0; x < 128; ++x) {
171 background->alpha_blend (overlay, Position<int> (13, 17));
173 shared_ptr<Image> save = background->convert_pixel_format (dcp::YUV_TO_RGB_REC709, AV_PIX_FMT_RGB24, false, false);
175 write_image (save, "build/test/image_test_" + suffix + ".png", "RGB");
176 check_image ("build/test/image_test_" + suffix + ".png", private_data / ("image_test_" + suffix + ".png"));
179 /** Test Image::alpha_blend */
180 BOOST_AUTO_TEST_CASE (alpha_blend_test)
182 alpha_blend_test_one (AV_PIX_FMT_RGB24, "rgb24");
183 alpha_blend_test_one (AV_PIX_FMT_BGRA, "bgra");
184 alpha_blend_test_one (AV_PIX_FMT_RGBA, "rgba");
185 alpha_blend_test_one (AV_PIX_FMT_RGB48LE, "rgb48le");
186 alpha_blend_test_one (AV_PIX_FMT_YUV420P, "yuv420p");
187 alpha_blend_test_one (AV_PIX_FMT_YUV420P10, "yuv420p10");
188 alpha_blend_test_one (AV_PIX_FMT_YUV422P10LE, "yuv422p10le");
191 /** Test merge (list<PositionImage>) with a single image */
192 BOOST_AUTO_TEST_CASE (merge_test1)
194 int const stride = 48 * 4;
196 shared_ptr<Image> A (new Image (AV_PIX_FMT_BGRA, dcp::Size (48, 48), false));
197 A->make_transparent ();
198 uint8_t* a = A->data()[0];
200 for (int y = 0; y < 48; ++y) {
201 uint8_t* p = a + y * stride;
202 for (int x = 0; x < 16; ++x) {
210 list<PositionImage> all;
211 all.push_back (PositionImage (A, Position<int> (0, 0)));
212 PositionImage merged = merge (all);
214 BOOST_CHECK (merged.position == Position<int> (0, 0));
215 BOOST_CHECK_EQUAL (memcmp (merged.image->data()[0], A->data()[0], stride * 48), 0);
218 /** Test merge (list<PositionImage>) with two images */
219 BOOST_AUTO_TEST_CASE (merge_test2)
221 shared_ptr<Image> A (new Image (AV_PIX_FMT_BGRA, dcp::Size (48, 1), false));
222 A->make_transparent ();
223 uint8_t* a = A->data()[0];
224 for (int x = 0; x < 16; ++x) {
231 shared_ptr<Image> B (new Image (AV_PIX_FMT_BGRA, dcp::Size (48, 1), false));
232 B->make_transparent ();
233 uint8_t* b = B->data()[0];
234 for (int x = 0; x < 16; ++x) {
236 b[(x + 32) * 4 + 2] = 255;
238 b[(x + 32) * 4 + 3] = 255;
241 list<PositionImage> all;
242 all.push_back (PositionImage (A, Position<int> (0, 0)));
243 all.push_back (PositionImage (B, Position<int> (0, 0)));
244 PositionImage merged = merge (all);
246 BOOST_CHECK (merged.position == Position<int> (0, 0));
248 uint8_t* m = merged.image->data()[0];
250 for (int x = 0; x < 16; ++x) {
251 BOOST_CHECK_EQUAL (m[x * 4], 255);
252 BOOST_CHECK_EQUAL (m[x * 4 + 3], 255);
253 BOOST_CHECK_EQUAL (m[(x + 16) * 4 + 3], 0);
254 BOOST_CHECK_EQUAL (m[(x + 32) * 4 + 2], 255);
255 BOOST_CHECK_EQUAL (m[(x + 32) * 4 + 3], 255);
259 /** Test Image::crop_scale_window with YUV420P and some windowing */
260 BOOST_AUTO_TEST_CASE (crop_scale_window_test)
262 shared_ptr<FFmpegImageProxy> proxy(new FFmpegImageProxy("test/data/flat_red.png"));
263 shared_ptr<Image> raw = proxy->image().first;
264 shared_ptr<Image> out = raw->crop_scale_window(Crop(), dcp::Size(1998, 836), dcp::Size(1998, 1080), dcp::YUV_TO_RGB_REC709, AV_PIX_FMT_YUV420P, true, false);
265 shared_ptr<Image> save = out->scale(dcp::Size(1998, 1080), dcp::YUV_TO_RGB_REC709, AV_PIX_FMT_RGB24, false, false);
266 write_image(save, "build/test/crop_scale_window_test.png", "RGB");
267 check_image("test/data/crop_scale_window_test.png", "build/test/crop_scale_window_test.png");