2 Copyright (C) 2012-2021 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/>.
22 /** @file test/image_test.cc
23 * @brief Test Image class.
24 * @ingroup selfcontained
25 * @see test/pixel_formats_test.cc
29 #include "lib/compose.hpp"
30 #include "lib/image.h"
31 #include "lib/image_content.h"
32 #include "lib/image_decoder.h"
33 #include "lib/ffmpeg_image_proxy.h"
35 #include <boost/test/unit_test.hpp>
41 using std::make_shared;
45 BOOST_AUTO_TEST_CASE (aligned_image_test)
47 auto s = new Image (AV_PIX_FMT_RGB24, dcp::Size (50, 50), Image::Alignment::PADDED);
48 BOOST_CHECK_EQUAL (s->planes(), 1);
49 /* 192 is 150 aligned to the nearest 64 bytes */
50 BOOST_CHECK_EQUAL (s->stride()[0], 192);
51 BOOST_CHECK_EQUAL (s->line_size()[0], 150);
52 BOOST_CHECK (s->data()[0]);
53 BOOST_CHECK (!s->data()[1]);
54 BOOST_CHECK (!s->data()[2]);
55 BOOST_CHECK (!s->data()[3]);
57 /* copy constructor */
58 auto t = new Image (*s);
59 BOOST_CHECK_EQUAL (t->planes(), 1);
60 BOOST_CHECK_EQUAL (t->stride()[0], 192);
61 BOOST_CHECK_EQUAL (t->line_size()[0], 150);
62 BOOST_CHECK (t->data()[0]);
63 BOOST_CHECK (!t->data()[1]);
64 BOOST_CHECK (!t->data()[2]);
65 BOOST_CHECK (!t->data()[3]);
66 BOOST_CHECK (t->data() != s->data());
67 BOOST_CHECK (t->data()[0] != s->data()[0]);
68 BOOST_CHECK (t->line_size() != s->line_size());
69 BOOST_CHECK_EQUAL (t->line_size()[0], s->line_size()[0]);
70 BOOST_CHECK (t->stride() != s->stride());
71 BOOST_CHECK_EQUAL (t->stride()[0], s->stride()[0]);
73 /* assignment operator */
74 auto u = new Image (AV_PIX_FMT_YUV422P, dcp::Size (150, 150), Image::Alignment::COMPACT);
76 BOOST_CHECK_EQUAL (u->planes(), 1);
77 BOOST_CHECK_EQUAL (u->stride()[0], 192);
78 BOOST_CHECK_EQUAL (u->line_size()[0], 150);
79 BOOST_CHECK (u->data()[0]);
80 BOOST_CHECK (!u->data()[1]);
81 BOOST_CHECK (!u->data()[2]);
82 BOOST_CHECK (!u->data()[3]);
83 BOOST_CHECK (u->data() != s->data());
84 BOOST_CHECK (u->data()[0] != s->data()[0]);
85 BOOST_CHECK (u->line_size() != s->line_size());
86 BOOST_CHECK_EQUAL (u->line_size()[0], s->line_size()[0]);
87 BOOST_CHECK (u->stride() != s->stride());
88 BOOST_CHECK_EQUAL (u->stride()[0], s->stride()[0]);
96 BOOST_AUTO_TEST_CASE (compact_image_test)
98 auto s = new Image (AV_PIX_FMT_RGB24, dcp::Size (50, 50), Image::Alignment::COMPACT);
99 BOOST_CHECK_EQUAL (s->planes(), 1);
100 BOOST_CHECK_EQUAL (s->stride()[0], 50 * 3);
101 BOOST_CHECK_EQUAL (s->line_size()[0], 50 * 3);
102 BOOST_CHECK (s->data()[0]);
103 BOOST_CHECK (!s->data()[1]);
104 BOOST_CHECK (!s->data()[2]);
105 BOOST_CHECK (!s->data()[3]);
107 /* copy constructor */
108 auto t = new Image (*s);
109 BOOST_CHECK_EQUAL (t->planes(), 1);
110 BOOST_CHECK_EQUAL (t->stride()[0], 50 * 3);
111 BOOST_CHECK_EQUAL (t->line_size()[0], 50 * 3);
112 BOOST_CHECK (t->data()[0]);
113 BOOST_CHECK (!t->data()[1]);
114 BOOST_CHECK (!t->data()[2]);
115 BOOST_CHECK (!t->data()[3]);
116 BOOST_CHECK (t->data() != s->data());
117 BOOST_CHECK (t->data()[0] != s->data()[0]);
118 BOOST_CHECK (t->line_size() != s->line_size());
119 BOOST_CHECK_EQUAL (t->line_size()[0], s->line_size()[0]);
120 BOOST_CHECK (t->stride() != s->stride());
121 BOOST_CHECK_EQUAL (t->stride()[0], s->stride()[0]);
123 /* assignment operator */
124 auto u = new Image (AV_PIX_FMT_YUV422P, dcp::Size (150, 150), Image::Alignment::PADDED);
126 BOOST_CHECK_EQUAL (u->planes(), 1);
127 BOOST_CHECK_EQUAL (u->stride()[0], 50 * 3);
128 BOOST_CHECK_EQUAL (u->line_size()[0], 50 * 3);
129 BOOST_CHECK (u->data()[0]);
130 BOOST_CHECK (!u->data()[1]);
131 BOOST_CHECK (!u->data()[2]);
132 BOOST_CHECK (!u->data()[3]);
133 BOOST_CHECK (u->data() != s->data());
134 BOOST_CHECK (u->data()[0] != s->data()[0]);
135 BOOST_CHECK (u->line_size() != s->line_size());
136 BOOST_CHECK_EQUAL (u->line_size()[0], s->line_size()[0]);
137 BOOST_CHECK (u->stride() != s->stride());
138 BOOST_CHECK_EQUAL (u->stride()[0], s->stride()[0]);
147 alpha_blend_test_one (AVPixelFormat format, string suffix)
149 auto proxy = make_shared<FFmpegImageProxy>(TestPaths::private_data() / "prophet_frame.tiff");
150 auto raw = proxy->image(Image::Alignment::PADDED).image;
151 auto background = raw->convert_pixel_format (dcp::YUVToRGB::REC709, format, Image::Alignment::PADDED, false);
153 auto overlay = make_shared<Image>(AV_PIX_FMT_BGRA, dcp::Size(431, 891), Image::Alignment::PADDED);
154 overlay->make_transparent ();
156 for (int y = 0; y < 128; ++y) {
157 auto p = overlay->data()[0] + y * overlay->stride()[0];
158 for (int x = 0; x < 128; ++x) {
164 for (int y = 128; y < 256; ++y) {
165 auto p = overlay->data()[0] + y * overlay->stride()[0];
166 for (int x = 0; x < 128; ++x) {
172 for (int y = 256; y < 384; ++y) {
173 auto p = overlay->data()[0] + y * overlay->stride()[0];
174 for (int x = 0; x < 128; ++x) {
180 background->alpha_blend (overlay, Position<int> (13, 17));
182 auto save = background->convert_pixel_format (dcp::YUVToRGB::REC709, AV_PIX_FMT_RGB24, Image::Alignment::COMPACT, false);
184 write_image (save, "build/test/image_test_" + suffix + ".png");
185 check_image ("build/test/image_test_" + suffix + ".png", TestPaths::private_data() / ("image_test_" + suffix + ".png"));
189 /** Test Image::alpha_blend */
190 BOOST_AUTO_TEST_CASE (alpha_blend_test)
192 alpha_blend_test_one (AV_PIX_FMT_RGB24, "rgb24");
193 alpha_blend_test_one (AV_PIX_FMT_BGRA, "bgra");
194 alpha_blend_test_one (AV_PIX_FMT_RGBA, "rgba");
195 alpha_blend_test_one (AV_PIX_FMT_RGB48LE, "rgb48le");
196 alpha_blend_test_one (AV_PIX_FMT_YUV420P, "yuv420p");
197 alpha_blend_test_one (AV_PIX_FMT_YUV420P10, "yuv420p10");
198 alpha_blend_test_one (AV_PIX_FMT_YUV422P10LE, "yuv422p10le");
202 /** Test merge (list<PositionImage>) with a single image */
203 BOOST_AUTO_TEST_CASE (merge_test1)
205 int const stride = 48 * 4;
207 auto A = make_shared<Image>(AV_PIX_FMT_BGRA, dcp::Size (48, 48), Image::Alignment::COMPACT);
208 A->make_transparent ();
209 auto a = A->data()[0];
211 for (int y = 0; y < 48; ++y) {
212 auto p = a + y * stride;
213 for (int x = 0; x < 16; ++x) {
221 list<PositionImage> all;
222 all.push_back (PositionImage (A, Position<int>(0, 0)));
223 auto merged = merge (all, Image::Alignment::COMPACT);
225 BOOST_CHECK (merged.position == Position<int>(0, 0));
226 BOOST_CHECK_EQUAL (memcmp (merged.image->data()[0], A->data()[0], stride * 48), 0);
230 /** Test merge (list<PositionImage>) with two images */
231 BOOST_AUTO_TEST_CASE (merge_test2)
233 auto A = make_shared<Image>(AV_PIX_FMT_BGRA, dcp::Size (48, 1), Image::Alignment::COMPACT);
234 A->make_transparent ();
235 auto a = A->data()[0];
236 for (int x = 0; x < 16; ++x) {
243 auto B = make_shared<Image>(AV_PIX_FMT_BGRA, dcp::Size (48, 1), Image::Alignment::COMPACT);
244 B->make_transparent ();
245 auto b = B->data()[0];
246 for (int x = 0; x < 16; ++x) {
248 b[(x + 32) * 4 + 2] = 255;
250 b[(x + 32) * 4 + 3] = 255;
253 list<PositionImage> all;
254 all.push_back (PositionImage(A, Position<int>(0, 0)));
255 all.push_back (PositionImage(B, Position<int>(0, 0)));
256 auto merged = merge (all, Image::Alignment::COMPACT);
258 BOOST_CHECK (merged.position == Position<int>(0, 0));
260 auto m = merged.image->data()[0];
262 for (int x = 0; x < 16; ++x) {
263 BOOST_CHECK_EQUAL (m[x * 4], 255);
264 BOOST_CHECK_EQUAL (m[x * 4 + 3], 255);
265 BOOST_CHECK_EQUAL (m[(x + 16) * 4 + 3], 0);
266 BOOST_CHECK_EQUAL (m[(x + 32) * 4 + 2], 255);
267 BOOST_CHECK_EQUAL (m[(x + 32) * 4 + 3], 255);
272 /** Test Image::crop_scale_window with YUV420P and some windowing */
273 BOOST_AUTO_TEST_CASE (crop_scale_window_test)
275 auto proxy = make_shared<FFmpegImageProxy>("test/data/flat_red.png");
276 auto raw = proxy->image(Image::Alignment::PADDED).image;
277 auto out = raw->crop_scale_window(
278 Crop(), dcp::Size(1998, 836), dcp::Size(1998, 1080), dcp::YUVToRGB::REC709, VideoRange::FULL, AV_PIX_FMT_YUV420P, VideoRange::FULL, Image::Alignment::PADDED, false
280 auto save = out->scale(dcp::Size(1998, 1080), dcp::YUVToRGB::REC709, AV_PIX_FMT_RGB24, Image::Alignment::COMPACT, false);
281 write_image(save, "build/test/crop_scale_window_test.png");
282 check_image("test/data/crop_scale_window_test.png", "build/test/crop_scale_window_test.png");
286 /** Special cases of Image::crop_scale_window which triggered some valgrind warnings */
287 BOOST_AUTO_TEST_CASE (crop_scale_window_test2)
289 auto image = make_shared<Image>(AV_PIX_FMT_XYZ12LE, dcp::Size(2048, 858), Image::Alignment::PADDED);
290 image->crop_scale_window (
291 Crop(279, 0, 0, 0), dcp::Size(1069, 448), dcp::Size(1069, 578), dcp::YUVToRGB::REC709, VideoRange::FULL, AV_PIX_FMT_RGB24, VideoRange::FULL, Image::Alignment::COMPACT, false
293 image->crop_scale_window (
294 Crop(2048, 0, 0, 0), dcp::Size(1069, 448), dcp::Size(1069, 578), dcp::YUVToRGB::REC709, VideoRange::FULL, AV_PIX_FMT_RGB24, VideoRange::FULL, Image::Alignment::COMPACT, false
299 BOOST_AUTO_TEST_CASE (crop_scale_window_test3)
301 auto proxy = make_shared<FFmpegImageProxy>(TestPaths::private_data() / "player_seek_test_0.png");
302 auto xyz = proxy->image(Image::Alignment::PADDED).image->convert_pixel_format(dcp::YUVToRGB::REC709, AV_PIX_FMT_RGB24, Image::Alignment::PADDED, false);
303 auto cropped = xyz->crop_scale_window(
304 Crop(512, 0, 0, 0), dcp::Size(1486, 1080), dcp::Size(1998, 1080), dcp::YUVToRGB::REC709, VideoRange::FULL, AV_PIX_FMT_RGB24, VideoRange::FULL, Image::Alignment::COMPACT, false
306 write_image(cropped, "build/test/crop_scale_window_test3.png");
307 check_image("test/data/crop_scale_window_test3.png", "build/test/crop_scale_window_test3.png");
311 BOOST_AUTO_TEST_CASE (crop_scale_window_test4)
313 auto proxy = make_shared<FFmpegImageProxy>(TestPaths::private_data() / "player_seek_test_0.png");
314 auto xyz = proxy->image(Image::Alignment::PADDED).image->convert_pixel_format(dcp::YUVToRGB::REC709, AV_PIX_FMT_RGB24, Image::Alignment::PADDED, false);
315 auto cropped = xyz->crop_scale_window(
316 Crop(512, 0, 0, 0), dcp::Size(1486, 1080), dcp::Size(1998, 1080), dcp::YUVToRGB::REC709, VideoRange::FULL, AV_PIX_FMT_XYZ12LE, VideoRange::FULL, Image::Alignment::COMPACT, false
318 write_image(cropped, "build/test/crop_scale_window_test4.png");
319 check_image("test/data/crop_scale_window_test4.png", "build/test/crop_scale_window_test4.png", 35000);
323 BOOST_AUTO_TEST_CASE (crop_scale_window_test5)
325 auto proxy = make_shared<FFmpegImageProxy>(TestPaths::private_data() / "player_seek_test_0.png");
326 auto xyz = proxy->image(Image::Alignment::PADDED).image->convert_pixel_format(dcp::YUVToRGB::REC709, AV_PIX_FMT_XYZ12LE, Image::Alignment::PADDED, false);
327 auto cropped = xyz->crop_scale_window(
328 Crop(512, 0, 0, 0), dcp::Size(1486, 1080), dcp::Size(1998, 1080), dcp::YUVToRGB::REC709, VideoRange::FULL, AV_PIX_FMT_RGB24, VideoRange::FULL, Image::Alignment::COMPACT, false
330 write_image(cropped, "build/test/crop_scale_window_test5.png");
331 check_image("test/data/crop_scale_window_test5.png", "build/test/crop_scale_window_test5.png");
335 BOOST_AUTO_TEST_CASE (crop_scale_window_test6)
337 auto proxy = make_shared<FFmpegImageProxy>(TestPaths::private_data() / "player_seek_test_0.png");
338 auto xyz = proxy->image(Image::Alignment::PADDED).image->convert_pixel_format(dcp::YUVToRGB::REC709, AV_PIX_FMT_XYZ12LE, Image::Alignment::PADDED, false);
339 auto cropped = xyz->crop_scale_window(
340 Crop(512, 0, 0, 0), dcp::Size(1486, 1080), dcp::Size(1998, 1080), dcp::YUVToRGB::REC709, VideoRange::FULL, AV_PIX_FMT_XYZ12LE, VideoRange::FULL, Image::Alignment::COMPACT, false
342 write_image(cropped, "build/test/crop_scale_window_test6.png");
343 check_image("test/data/crop_scale_window_test6.png", "build/test/crop_scale_window_test6.png", 35000);
347 /** Test some small crops with an image that shows up errors in registration of the YUV planes (#1872) */
348 BOOST_AUTO_TEST_CASE (crop_scale_window_test7)
350 using namespace boost::filesystem;
351 for (int left_crop = 0; left_crop < 8; ++left_crop) {
352 auto proxy = make_shared<FFmpegImageProxy>("test/data/rgb_grey_testcard.png");
353 auto yuv = proxy->image(Image::Alignment::PADDED).image->convert_pixel_format(dcp::YUVToRGB::REC709, AV_PIX_FMT_YUV420P, Image::Alignment::PADDED, false);
354 int rounded = left_crop - (left_crop % 2);
355 auto cropped = yuv->crop_scale_window(
356 Crop(left_crop, 0, 0, 0),
357 dcp::Size(1998 - rounded, 1080),
358 dcp::Size(1998 - rounded, 1080),
359 dcp::YUVToRGB::REC709,
363 Image::Alignment::PADDED,
366 path file = String::compose("crop_scale_window_test7-%1.png", left_crop);
367 write_image(cropped, path("build") / "test" / file);
368 check_image(path("test") / "data" / file, path("build") / "test" / file, 10);
373 BOOST_AUTO_TEST_CASE (as_png_test)
375 auto proxy = make_shared<FFmpegImageProxy>("test/data/3d_test/000001.png");
376 auto image_rgb = proxy->image(Image::Alignment::PADDED).image;
377 auto image_bgr = image_rgb->convert_pixel_format(dcp::YUVToRGB::REC709, AV_PIX_FMT_BGRA, Image::Alignment::PADDED, false);
378 image_rgb->as_png().write ("build/test/as_png_rgb.png");
379 image_bgr->as_png().write ("build/test/as_png_bgr.png");
381 check_image ("test/data/3d_test/000001.png", "build/test/as_png_rgb.png");
382 check_image ("test/data/3d_test/000001.png", "build/test/as_png_bgr.png");
386 /* Very dumb test to fade black to make sure it stays black */
388 fade_test_format_black (AVPixelFormat f, string name)
390 Image yuv (f, dcp::Size(640, 480), Image::Alignment::PADDED);
393 string const filename = "fade_test_black_" + name + ".png";
394 yuv.convert_pixel_format(dcp::YUVToRGB::REC709, AV_PIX_FMT_RGBA, Image::Alignment::PADDED, false)->as_png().write("build/test/" + filename);
395 check_image ("test/data/" + filename, "build/test/" + filename);
399 /* Fade red to make sure it stays red */
401 fade_test_format_red (AVPixelFormat f, float amount, string name)
403 auto proxy = make_shared<FFmpegImageProxy>("test/data/flat_red.png");
404 auto red = proxy->image(Image::Alignment::PADDED).image->convert_pixel_format(dcp::YUVToRGB::REC709, f, Image::Alignment::PADDED, false);
406 string const filename = "fade_test_red_" + name + ".png";
407 red->convert_pixel_format(dcp::YUVToRGB::REC709, AV_PIX_FMT_RGBA, Image::Alignment::PADDED, false)->as_png().write("build/test/" + filename);
408 check_image ("test/data/" + filename, "build/test/" + filename);
412 BOOST_AUTO_TEST_CASE (fade_test)
414 fade_test_format_black (AV_PIX_FMT_YUV420P, "yuv420p");
415 fade_test_format_black (AV_PIX_FMT_YUV422P10, "yuv422p10");
416 fade_test_format_black (AV_PIX_FMT_RGB24, "rgb24");
417 fade_test_format_black (AV_PIX_FMT_XYZ12LE, "xyz12le");
418 fade_test_format_black (AV_PIX_FMT_RGB48LE, "rgb48le");
420 fade_test_format_red (AV_PIX_FMT_YUV420P, 0, "yuv420p_0");
421 fade_test_format_red (AV_PIX_FMT_YUV420P, 0.5, "yuv420p_50");
422 fade_test_format_red (AV_PIX_FMT_YUV420P, 1, "yuv420p_100");
423 fade_test_format_red (AV_PIX_FMT_YUV422P10, 0, "yuv422p10_0");
424 fade_test_format_red (AV_PIX_FMT_YUV422P10, 0.5, "yuv422p10_50");
425 fade_test_format_red (AV_PIX_FMT_YUV422P10, 1, "yuv422p10_100");
426 fade_test_format_red (AV_PIX_FMT_RGB24, 0, "rgb24_0");
427 fade_test_format_red (AV_PIX_FMT_RGB24, 0.5, "rgb24_50");
428 fade_test_format_red (AV_PIX_FMT_RGB24, 1, "rgb24_100");
429 fade_test_format_red (AV_PIX_FMT_XYZ12LE, 0, "xyz12le_0");
430 fade_test_format_red (AV_PIX_FMT_XYZ12LE, 0.5, "xyz12le_50");
431 fade_test_format_red (AV_PIX_FMT_XYZ12LE, 1, "xyz12le_100");
432 fade_test_format_red (AV_PIX_FMT_RGB48LE, 0, "rgb48le_0");
433 fade_test_format_red (AV_PIX_FMT_RGB48LE, 0.5, "rgb48le_50");
434 fade_test_format_red (AV_PIX_FMT_RGB48LE, 1, "rgb48le_100");
438 BOOST_AUTO_TEST_CASE (make_black_test)
440 dcp::Size in_size (512, 512);
441 dcp::Size out_size (1024, 1024);
443 list<AVPixelFormat> pix_fmts = {
444 AV_PIX_FMT_RGB24, // 2
449 AV_PIX_FMT_YUV420P, // 0
451 AV_PIX_FMT_YUV422P10LE,
452 AV_PIX_FMT_YUV422P16LE,
453 AV_PIX_FMT_YUV444P9LE,
454 AV_PIX_FMT_YUV444P9BE,
455 AV_PIX_FMT_YUV444P10LE,
456 AV_PIX_FMT_YUV444P10BE,
461 AV_PIX_FMT_YUVA420P9BE,
462 AV_PIX_FMT_YUVA422P9BE,
463 AV_PIX_FMT_YUVA444P9BE,
464 AV_PIX_FMT_YUVA420P9LE,
465 AV_PIX_FMT_YUVA422P9LE,
466 AV_PIX_FMT_YUVA444P9LE,
467 AV_PIX_FMT_YUVA420P10BE,
468 AV_PIX_FMT_YUVA422P10BE,
469 AV_PIX_FMT_YUVA444P10BE,
470 AV_PIX_FMT_YUVA420P10LE,
471 AV_PIX_FMT_YUVA422P10LE,
472 AV_PIX_FMT_YUVA444P10LE,
473 AV_PIX_FMT_YUVA420P16BE,
474 AV_PIX_FMT_YUVA422P16BE,
475 AV_PIX_FMT_YUVA444P16BE,
476 AV_PIX_FMT_YUVA420P16LE,
477 AV_PIX_FMT_YUVA422P16LE,
478 AV_PIX_FMT_YUVA444P16LE,
479 AV_PIX_FMT_RGB555LE, // 46
483 for (auto i: pix_fmts) {
484 auto foo = make_shared<Image>(i, in_size, Image::Alignment::PADDED);
486 auto bar = foo->scale (out_size, dcp::YUVToRGB::REC601, AV_PIX_FMT_RGB24, Image::Alignment::PADDED, false);
488 uint8_t* p = bar->data()[0];
489 for (int y = 0; y < bar->size().height; ++y) {
491 for (int x = 0; x < bar->line_size()[0]; ++x) {
493 std::cerr << "x=" << x << ", (x%3)=" << (x%3) << "\n";
495 BOOST_CHECK_EQUAL (*q++, 0);
497 p += bar->stride()[0];
505 BOOST_AUTO_TEST_CASE (make_part_black_test)
507 auto proxy = make_shared<FFmpegImageProxy>("test/data/flat_red.png");
508 auto original = proxy->image(Image::Alignment::PADDED).image;
510 list<AVPixelFormat> pix_fmts = {
517 AV_PIX_FMT_YUV422P10LE,
520 list<std::pair<int, int>> positions = {
526 for (auto i: pix_fmts) {
527 for (auto j: positions) {
528 auto foo = original->convert_pixel_format(dcp::YUVToRGB::REC601, i, Image::Alignment::PADDED, false);
529 foo->make_part_black (j.first, j.second);
530 auto bar = foo->convert_pixel_format (dcp::YUVToRGB::REC601, AV_PIX_FMT_RGB24, Image::Alignment::PADDED, false);
532 auto p = bar->data()[0];
533 for (int y = 0; y < bar->size().height; ++y) {
535 for (int x = 0; x < bar->size().width; ++x) {
539 if (x >= j.first && x < (j.first + j.second)) {
540 BOOST_CHECK_MESSAGE (
541 r < 3, "red=" << static_cast<int>(r) << " at (" << x << "," << y << ") format " << i << " from " << j.first << " width " << j.second
544 BOOST_CHECK_MESSAGE (
545 r >= 252, "red=" << static_cast<int>(r) << " at (" << x << "," << y << ") format " << i << " from " << j.first << " width " << j.second
549 BOOST_CHECK_MESSAGE (
550 g == 0, "green=" << static_cast<int>(g) << " at (" << x << "," << y << ") format " << i << " from " << j.first << " width " << j.second
552 BOOST_CHECK_MESSAGE (
553 b == 0, "blue=" << static_cast<int>(b) << " at (" << x << "," << y << ") format " << i << " from " << j.first << " width " << j.second
556 p += bar->stride()[0];
565 /** Make sure the image isn't corrupted if it is cropped too much. This can happen when a
566 * filler 128x128 black frame is emitted from the FFmpegDecoder and the overall crop in either direction
567 * is greater than 128 pixels.
569 BOOST_AUTO_TEST_CASE (over_crop_test)
571 auto image = make_shared<Image>(AV_PIX_FMT_RGB24, dcp::Size(128, 128), Image::Alignment::PADDED);
572 image->make_black ();
573 auto scaled = image->crop_scale_window (
574 Crop(0, 0, 128, 128), dcp::Size(1323, 565), dcp::Size(1349, 565), dcp::YUVToRGB::REC709, VideoRange::FULL, AV_PIX_FMT_RGB24, VideoRange::FULL, Image::Alignment::PADDED, true
576 string const filename = "over_crop_test.png";
577 write_image (scaled, "build/test/" + filename);
578 check_image ("test/data/" + filename, "build/test/" + filename);