test/image_test.cc

   1 /*
   2     Copyright (C) 2012-2021 Carl Hetherington <cth@carlh.net>
   3
   4     This file is part of DCP-o-matic.
   5
   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.
  10
  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.
  15
  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/>.
  18
  19 */
  20
  21
  22 /** @file  test/image_test.cc
  23  *  @brief Test Image class.
  24  *  @ingroup selfcontained
  25  *  @see test/pixel_formats_test.cc
  26  */
  27
  28
  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/image_jpeg.h"
  34 #include "lib/image_png.h"
  35 #include "lib/ffmpeg_image_proxy.h"
  36 #include "test.h"
  37 #include <boost/test/unit_test.hpp>
  38 #include <iostream>
  39
  40
  41 using std::cout;
  42 using std::list;
  43 using std::make_shared;
  44 using std::string;
  45
  46
  47 BOOST_AUTO_TEST_CASE (aligned_image_test)
  48 {
  49         auto s = new Image (AV_PIX_FMT_RGB24, dcp::Size (50, 50), Image::Alignment::PADDED);
  50         BOOST_CHECK_EQUAL (s->planes(), 1);
  51         /* 192 is 150 aligned to the nearest 64 bytes */
  52         BOOST_CHECK_EQUAL (s->stride()[0], 192);
  53         BOOST_CHECK_EQUAL (s->line_size()[0], 150);
  54         BOOST_CHECK (s->data()[0]);
  55         BOOST_CHECK (!s->data()[1]);
  56         BOOST_CHECK (!s->data()[2]);
  57         BOOST_CHECK (!s->data()[3]);
  58
  59         /* copy constructor */
  60         auto t = new Image (*s);
  61         BOOST_CHECK_EQUAL (t->planes(), 1);
  62         BOOST_CHECK_EQUAL (t->stride()[0], 192);
  63         BOOST_CHECK_EQUAL (t->line_size()[0], 150);
  64         BOOST_CHECK (t->data()[0]);
  65         BOOST_CHECK (!t->data()[1]);
  66         BOOST_CHECK (!t->data()[2]);
  67         BOOST_CHECK (!t->data()[3]);
  68         BOOST_CHECK (t->data() != s->data());
  69         BOOST_CHECK (t->data()[0] != s->data()[0]);
  70         BOOST_CHECK (t->line_size() != s->line_size());
  71         BOOST_CHECK_EQUAL (t->line_size()[0], s->line_size()[0]);
  72         BOOST_CHECK (t->stride() != s->stride());
  73         BOOST_CHECK_EQUAL (t->stride()[0], s->stride()[0]);
  74
  75         /* assignment operator */
  76         auto u = new Image (AV_PIX_FMT_YUV422P, dcp::Size (150, 150), Image::Alignment::COMPACT);
  77         *u = *s;
  78         BOOST_CHECK_EQUAL (u->planes(), 1);
  79         BOOST_CHECK_EQUAL (u->stride()[0], 192);
  80         BOOST_CHECK_EQUAL (u->line_size()[0], 150);
  81         BOOST_CHECK (u->data()[0]);
  82         BOOST_CHECK (!u->data()[1]);
  83         BOOST_CHECK (!u->data()[2]);
  84         BOOST_CHECK (!u->data()[3]);
  85         BOOST_CHECK (u->data() != s->data());
  86         BOOST_CHECK (u->data()[0] != s->data()[0]);
  87         BOOST_CHECK (u->line_size() != s->line_size());
  88         BOOST_CHECK_EQUAL (u->line_size()[0], s->line_size()[0]);
  89         BOOST_CHECK (u->stride() != s->stride());
  90         BOOST_CHECK_EQUAL (u->stride()[0], s->stride()[0]);
  91
  92         delete s;
  93         delete t;
  94         delete u;
  95 }
  96
  97
  98 BOOST_AUTO_TEST_CASE (compact_image_test)
  99 {
 100         auto s = new Image (AV_PIX_FMT_RGB24, dcp::Size (50, 50), Image::Alignment::COMPACT);
 101         BOOST_CHECK_EQUAL (s->planes(), 1);
 102         BOOST_CHECK_EQUAL (s->stride()[0], 50 * 3);
 103         BOOST_CHECK_EQUAL (s->line_size()[0], 50 * 3);
 104         BOOST_CHECK (s->data()[0]);
 105         BOOST_CHECK (!s->data()[1]);
 106         BOOST_CHECK (!s->data()[2]);
 107         BOOST_CHECK (!s->data()[3]);
 108
 109         /* copy constructor */
 110         auto t = new Image (*s);
 111         BOOST_CHECK_EQUAL (t->planes(), 1);
 112         BOOST_CHECK_EQUAL (t->stride()[0], 50 * 3);
 113         BOOST_CHECK_EQUAL (t->line_size()[0], 50 * 3);
 114         BOOST_CHECK (t->data()[0]);
 115         BOOST_CHECK (!t->data()[1]);
 116         BOOST_CHECK (!t->data()[2]);
 117         BOOST_CHECK (!t->data()[3]);
 118         BOOST_CHECK (t->data() != s->data());
 119         BOOST_CHECK (t->data()[0] != s->data()[0]);
 120         BOOST_CHECK (t->line_size() != s->line_size());
 121         BOOST_CHECK_EQUAL (t->line_size()[0], s->line_size()[0]);
 122         BOOST_CHECK (t->stride() != s->stride());
 123         BOOST_CHECK_EQUAL (t->stride()[0], s->stride()[0]);
 124
 125         /* assignment operator */
 126         auto u = new Image (AV_PIX_FMT_YUV422P, dcp::Size (150, 150), Image::Alignment::PADDED);
 127         *u = *s;
 128         BOOST_CHECK_EQUAL (u->planes(), 1);
 129         BOOST_CHECK_EQUAL (u->stride()[0], 50 * 3);
 130         BOOST_CHECK_EQUAL (u->line_size()[0], 50 * 3);
 131         BOOST_CHECK (u->data()[0]);
 132         BOOST_CHECK (!u->data()[1]);
 133         BOOST_CHECK (!u->data()[2]);
 134         BOOST_CHECK (!u->data()[3]);
 135         BOOST_CHECK (u->data() != s->data());
 136         BOOST_CHECK (u->data()[0] != s->data()[0]);
 137         BOOST_CHECK (u->line_size() != s->line_size());
 138         BOOST_CHECK_EQUAL (u->line_size()[0], s->line_size()[0]);
 139         BOOST_CHECK (u->stride() != s->stride());
 140         BOOST_CHECK_EQUAL (u->stride()[0], s->stride()[0]);
 141
 142         delete s;
 143         delete t;
 144         delete u;
 145 }
 146
 147
 148 void
 149 alpha_blend_test_one (AVPixelFormat format, string suffix)
 150 {
 151         auto proxy = make_shared<FFmpegImageProxy>(TestPaths::private_data() / "prophet_frame.tiff");
 152         auto raw = proxy->image(Image::Alignment::PADDED).image;
 153         auto background = raw->convert_pixel_format (dcp::YUVToRGB::REC709, format, Image::Alignment::PADDED, false);
 154
 155         auto overlay = make_shared<Image>(AV_PIX_FMT_BGRA, dcp::Size(431, 891), Image::Alignment::PADDED);
 156         overlay->make_transparent ();
 157
 158         for (int y = 0; y < 128; ++y) {
 159                 auto p = overlay->data()[0] + y * overlay->stride()[0];
 160                 for (int x = 0; x < 128; ++x) {
 161                         p[x * 4 + 2] = 255;
 162                         p[x * 4 + 3] = 255;
 163                 }
 164         }
 165
 166         for (int y = 128; y < 256; ++y) {
 167                 auto p = overlay->data()[0] + y * overlay->stride()[0];
 168                 for (int x = 0; x < 128; ++x) {
 169                         p[x * 4 + 1] = 255;
 170                         p[x * 4 + 3] = 255;
 171                 }
 172         }
 173
 174         for (int y = 256; y < 384; ++y) {
 175                 auto p = overlay->data()[0] + y * overlay->stride()[0];
 176                 for (int x = 0; x < 128; ++x) {
 177                         p[x * 4] = 255;
 178                         p[x * 4 + 3] = 255;
 179                 }
 180         }
 181
 182         background->alpha_blend (overlay, Position<int> (13, 17));
 183
 184         auto save = background->convert_pixel_format (dcp::YUVToRGB::REC709, AV_PIX_FMT_RGB24, Image::Alignment::COMPACT, false);
 185
 186         write_image (save, "build/test/image_test_" + suffix + ".png");
 187         check_image ("build/test/image_test_" + suffix + ".png", TestPaths::private_data() / ("image_test_" + suffix + ".png"));
 188 }
 189
 190
 191 /** Test Image::alpha_blend */
 192 BOOST_AUTO_TEST_CASE (alpha_blend_test)
 193 {
 194         alpha_blend_test_one (AV_PIX_FMT_RGB24, "rgb24");
 195         alpha_blend_test_one (AV_PIX_FMT_BGRA, "bgra");
 196         alpha_blend_test_one (AV_PIX_FMT_RGBA, "rgba");
 197         alpha_blend_test_one (AV_PIX_FMT_RGB48LE, "rgb48le");
 198         alpha_blend_test_one (AV_PIX_FMT_YUV420P, "yuv420p");
 199         alpha_blend_test_one (AV_PIX_FMT_YUV420P10, "yuv420p10");
 200         alpha_blend_test_one (AV_PIX_FMT_YUV422P10LE, "yuv422p10le");
 201 }
 202
 203
 204 /** Test Image::alpha_blend when the "base" image is XYZ12LE */
 205 BOOST_AUTO_TEST_CASE (alpha_blend_test_onto_xyz)
 206 {
 207         Image xyz(AV_PIX_FMT_XYZ12LE, dcp::Size(50, 50), Image::Alignment::PADDED);
 208         xyz.make_black();
 209
 210         auto overlay = make_shared<Image>(AV_PIX_FMT_RGBA, dcp::Size(8, 8), Image::Alignment::PADDED);
 211         for (int y = 0; y < 8; ++y) {
 212                 uint8_t* p = overlay->data()[0] + (y * overlay->stride()[0]);
 213                 for (int x = 0; x < 8; ++x) {
 214                         *p++ = 255;
 215                         *p++ = 0;
 216                         *p++ = 0;
 217                         *p++ = 255;
 218                 }
 219         }
 220
 221         xyz.alpha_blend(overlay, Position<int>(4, 4));
 222
 223         for (int y = 0; y < 50; ++y) {
 224                 uint16_t* p = reinterpret_cast<uint16_t*>(xyz.data()[0]) + (y * xyz.stride()[0] / 2);
 225                 for (int x = 0; x < 50; ++x) {
 226                         std::cout << "x=" << x << ", y=" << y << "\n";
 227                         if (4 <= x && x < 12 && 4 <= y && y < 12) {
 228                                 BOOST_REQUIRE_EQUAL(p[0], 45078U);
 229                                 BOOST_REQUIRE_EQUAL(p[1], 34939U);
 230                                 BOOST_REQUIRE_EQUAL(p[2], 13892U);
 231                         } else {
 232                                 BOOST_REQUIRE_EQUAL(p[0], 0U);
 233                                 BOOST_REQUIRE_EQUAL(p[1], 0U);
 234                                 BOOST_REQUIRE_EQUAL(p[2], 0U);
 235                         }
 236                         p += 3;
 237                 }
 238         }
 239 }
 240
 241
 242 /** Test merge (list<PositionImage>) with a single image */
 243 BOOST_AUTO_TEST_CASE (merge_test1)
 244 {
 245         int const stride = 48 * 4;
 246
 247         auto A = make_shared<Image>(AV_PIX_FMT_BGRA, dcp::Size (48, 48), Image::Alignment::COMPACT);
 248         A->make_transparent ();
 249         auto a = A->data()[0];
 250
 251         for (int y = 0; y < 48; ++y) {
 252                 auto p = a + y * stride;
 253                 for (int x = 0; x < 16; ++x) {
 254                         /* blue */
 255                         p[x * 4] = 255;
 256                         /* opaque */
 257                         p[x * 4 + 3] = 255;
 258                 }
 259         }
 260
 261         list<PositionImage> all;
 262         all.push_back (PositionImage (A, Position<int>(0, 0)));
 263         auto merged = merge (all, Image::Alignment::COMPACT);
 264
 265         BOOST_CHECK (merged.position == Position<int>(0, 0));
 266         BOOST_CHECK_EQUAL (memcmp (merged.image->data()[0], A->data()[0], stride * 48), 0);
 267 }
 268
 269
 270 /** Test merge (list<PositionImage>) with two images */
 271 BOOST_AUTO_TEST_CASE (merge_test2)
 272 {
 273         auto A = make_shared<Image>(AV_PIX_FMT_BGRA, dcp::Size (48, 1), Image::Alignment::COMPACT);
 274         A->make_transparent ();
 275         auto a = A->data()[0];
 276         for (int x = 0; x < 16; ++x) {
 277                 /* blue */
 278                 a[x * 4] = 255;
 279                 /* opaque */
 280                 a[x * 4 + 3] = 255;
 281         }
 282
 283         auto B = make_shared<Image>(AV_PIX_FMT_BGRA, dcp::Size (48, 1), Image::Alignment::COMPACT);
 284         B->make_transparent ();
 285         auto b = B->data()[0];
 286         for (int x = 0; x < 16; ++x) {
 287                 /* red */
 288                 b[(x + 32) * 4 + 2] = 255;
 289                 /* opaque */
 290                 b[(x + 32) * 4 + 3] = 255;
 291         }
 292
 293         list<PositionImage> all;
 294         all.push_back (PositionImage(A, Position<int>(0, 0)));
 295         all.push_back (PositionImage(B, Position<int>(0, 0)));
 296         auto merged = merge (all, Image::Alignment::COMPACT);
 297
 298         BOOST_CHECK (merged.position == Position<int>(0, 0));
 299
 300         auto m = merged.image->data()[0];
 301
 302         for (int x = 0; x < 16; ++x) {
 303                 BOOST_CHECK_EQUAL (m[x * 4], 255);
 304                 BOOST_CHECK_EQUAL (m[x * 4 + 3], 255);
 305                 BOOST_CHECK_EQUAL (m[(x + 16) * 4 + 3], 0);
 306                 BOOST_CHECK_EQUAL (m[(x + 32) * 4 + 2], 255);
 307                 BOOST_CHECK_EQUAL (m[(x + 32) * 4 + 3], 255);
 308         }
 309 }
 310
 311
 312 /** Test Image::crop_scale_window with YUV420P and some windowing */
 313 BOOST_AUTO_TEST_CASE (crop_scale_window_test)
 314 {
 315         auto proxy = make_shared<FFmpegImageProxy>("test/data/flat_red.png");
 316         auto raw = proxy->image(Image::Alignment::PADDED).image;
 317         auto out = raw->crop_scale_window(
 318                 Crop(), dcp::Size(1998, 836), dcp::Size(1998, 1080), dcp::YUVToRGB::REC709, VideoRange::FULL, AV_PIX_FMT_YUV420P, VideoRange::FULL, Image::Alignment::PADDED, false
 319                 );
 320         auto save = out->scale(dcp::Size(1998, 1080), dcp::YUVToRGB::REC709, AV_PIX_FMT_RGB24, Image::Alignment::COMPACT, false);
 321         write_image(save, "build/test/crop_scale_window_test.png");
 322         check_image("test/data/crop_scale_window_test.png", "build/test/crop_scale_window_test.png");
 323 }
 324
 325
 326 /** Special cases of Image::crop_scale_window which triggered some valgrind warnings */
 327 BOOST_AUTO_TEST_CASE (crop_scale_window_test2)
 328 {
 329         auto image = make_shared<Image>(AV_PIX_FMT_XYZ12LE, dcp::Size(2048, 858), Image::Alignment::PADDED);
 330         image->crop_scale_window (
 331                 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
 332                 );
 333         image->crop_scale_window (
 334                 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
 335                 );
 336 }
 337
 338
 339 BOOST_AUTO_TEST_CASE (crop_scale_window_test3)
 340 {
 341         auto proxy = make_shared<FFmpegImageProxy>(TestPaths::private_data() / "player_seek_test_0.png");
 342         auto xyz = proxy->image(Image::Alignment::PADDED).image->convert_pixel_format(dcp::YUVToRGB::REC709, AV_PIX_FMT_RGB24, Image::Alignment::PADDED, false);
 343         auto cropped = xyz->crop_scale_window(
 344                 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
 345                 );
 346         write_image(cropped, "build/test/crop_scale_window_test3.png");
 347         check_image("test/data/crop_scale_window_test3.png", "build/test/crop_scale_window_test3.png");
 348 }
 349
 350
 351 BOOST_AUTO_TEST_CASE (crop_scale_window_test4)
 352 {
 353         auto proxy = make_shared<FFmpegImageProxy>(TestPaths::private_data() / "player_seek_test_0.png");
 354         auto xyz = proxy->image(Image::Alignment::PADDED).image->convert_pixel_format(dcp::YUVToRGB::REC709, AV_PIX_FMT_RGB24, Image::Alignment::PADDED, false);
 355         auto cropped = xyz->crop_scale_window(
 356                 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
 357                 );
 358         write_image(cropped, "build/test/crop_scale_window_test4.png");
 359         check_image("test/data/crop_scale_window_test4.png", "build/test/crop_scale_window_test4.png", 35000);
 360 }
 361
 362
 363 BOOST_AUTO_TEST_CASE (crop_scale_window_test5)
 364 {
 365         auto proxy = make_shared<FFmpegImageProxy>(TestPaths::private_data() / "player_seek_test_0.png");
 366         auto xyz = proxy->image(Image::Alignment::PADDED).image->convert_pixel_format(dcp::YUVToRGB::REC709, AV_PIX_FMT_XYZ12LE, Image::Alignment::PADDED, false);
 367         auto cropped = xyz->crop_scale_window(
 368                 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
 369                 );
 370         write_image(cropped, "build/test/crop_scale_window_test5.png");
 371         check_image("test/data/crop_scale_window_test5.png", "build/test/crop_scale_window_test5.png");
 372 }
 373
 374
 375 BOOST_AUTO_TEST_CASE (crop_scale_window_test6)
 376 {
 377         auto proxy = make_shared<FFmpegImageProxy>(TestPaths::private_data() / "player_seek_test_0.png");
 378         auto xyz = proxy->image(Image::Alignment::PADDED).image->convert_pixel_format(dcp::YUVToRGB::REC709, AV_PIX_FMT_XYZ12LE, Image::Alignment::PADDED, false);
 379         auto cropped = xyz->crop_scale_window(
 380                 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
 381                 );
 382         write_image(cropped, "build/test/crop_scale_window_test6.png");
 383         check_image("test/data/crop_scale_window_test6.png", "build/test/crop_scale_window_test6.png", 35000);
 384 }
 385
 386
 387 /** Test some small crops with an image that shows up errors in registration of the YUV planes (#1872) */
 388 BOOST_AUTO_TEST_CASE (crop_scale_window_test7)
 389 {
 390         using namespace boost::filesystem;
 391         for (int left_crop = 0; left_crop < 8; ++left_crop) {
 392                 auto proxy = make_shared<FFmpegImageProxy>("test/data/rgb_grey_testcard.png");
 393                 auto yuv = proxy->image(Image::Alignment::PADDED).image->convert_pixel_format(dcp::YUVToRGB::REC709, AV_PIX_FMT_YUV420P, Image::Alignment::PADDED, false);
 394                 int rounded = left_crop - (left_crop % 2);
 395                 auto cropped = yuv->crop_scale_window(
 396                         Crop(left_crop, 0, 0, 0),
 397                         dcp::Size(1998 - rounded, 1080),
 398                         dcp::Size(1998 - rounded, 1080),
 399                         dcp::YUVToRGB::REC709,
 400                         VideoRange::VIDEO,
 401                         AV_PIX_FMT_RGB24,
 402                         VideoRange::VIDEO,
 403                         Image::Alignment::PADDED,
 404                         false
 405                         );
 406                 path file = String::compose("crop_scale_window_test7-%1.png", left_crop);
 407                 write_image(cropped, path("build") / "test" / file);
 408                 check_image(path("test") / "data" / file, path("build") / "test" / file, 10);
 409         }
 410 }
 411
 412
 413 BOOST_AUTO_TEST_CASE (as_png_test)
 414 {
 415         auto proxy = make_shared<FFmpegImageProxy>("test/data/3d_test/000001.png");
 416         auto image_rgb = proxy->image(Image::Alignment::PADDED).image;
 417         auto image_bgr = image_rgb->convert_pixel_format(dcp::YUVToRGB::REC709, AV_PIX_FMT_BGRA, Image::Alignment::PADDED, false);
 418         image_as_png(image_rgb).write ("build/test/as_png_rgb.png");
 419         image_as_png(image_bgr).write ("build/test/as_png_bgr.png");
 420
 421         check_image ("test/data/3d_test/000001.png", "build/test/as_png_rgb.png");
 422         check_image ("test/data/3d_test/000001.png", "build/test/as_png_bgr.png");
 423 }
 424
 425
 426 BOOST_AUTO_TEST_CASE (as_jpeg_test)
 427 {
 428         auto proxy = make_shared<FFmpegImageProxy>("test/data/3d_test/000001.png");
 429         auto image_rgb = proxy->image(Image::Alignment::PADDED).image;
 430         auto image_bgr = image_rgb->convert_pixel_format(dcp::YUVToRGB::REC709, AV_PIX_FMT_BGRA, Image::Alignment::PADDED, false);
 431         image_as_jpeg(image_rgb, 60).write("build/test/as_jpeg_rgb.jpeg");
 432         image_as_jpeg(image_bgr, 60).write("build/test/as_jpeg_bgr.jpeg");
 433
 434         check_image ("test/data/as_jpeg_rgb.jpeg", "build/test/as_jpeg_rgb.jpeg");
 435         check_image ("test/data/as_jpeg_bgr.jpeg", "build/test/as_jpeg_bgr.jpeg");
 436 }
 437
 438
 439 /* Very dumb test to fade black to make sure it stays black */
 440 static void
 441 fade_test_format_black (AVPixelFormat f, string name)
 442 {
 443         Image yuv (f, dcp::Size(640, 480), Image::Alignment::PADDED);
 444         yuv.make_black ();
 445         yuv.fade (0);
 446         string const filename = "fade_test_black_" + name + ".png";
 447         image_as_png(yuv.convert_pixel_format(dcp::YUVToRGB::REC709, AV_PIX_FMT_RGBA, Image::Alignment::PADDED, false)).write("build/test/" + filename);
 448         check_image ("test/data/" + filename, "build/test/" + filename);
 449 }
 450
 451
 452 /* Fade red to make sure it stays red */
 453 static void
 454 fade_test_format_red (AVPixelFormat f, float amount, string name)
 455 {
 456         auto proxy = make_shared<FFmpegImageProxy>("test/data/flat_red.png");
 457         auto red = proxy->image(Image::Alignment::PADDED).image->convert_pixel_format(dcp::YUVToRGB::REC709, f, Image::Alignment::PADDED, false);
 458         red->fade (amount);
 459         string const filename = "fade_test_red_" + name + ".png";
 460         image_as_png(red->convert_pixel_format(dcp::YUVToRGB::REC709, AV_PIX_FMT_RGBA, Image::Alignment::PADDED, false)).write("build/test/" + filename);
 461         check_image ("test/data/" + filename, "build/test/" + filename);
 462 }
 463
 464
 465 BOOST_AUTO_TEST_CASE (fade_test)
 466 {
 467         fade_test_format_black (AV_PIX_FMT_YUV420P,   "yuv420p");
 468         fade_test_format_black (AV_PIX_FMT_YUV422P10, "yuv422p10");
 469         fade_test_format_black (AV_PIX_FMT_RGB24,     "rgb24");
 470         fade_test_format_black (AV_PIX_FMT_XYZ12LE,   "xyz12le");
 471         fade_test_format_black (AV_PIX_FMT_RGB48LE,   "rgb48le");
 472
 473         fade_test_format_red   (AV_PIX_FMT_YUV420P,   0,   "yuv420p_0");
 474         fade_test_format_red   (AV_PIX_FMT_YUV420P,   0.5, "yuv420p_50");
 475         fade_test_format_red   (AV_PIX_FMT_YUV420P,   1,   "yuv420p_100");
 476         fade_test_format_red   (AV_PIX_FMT_YUV422P10, 0,   "yuv422p10_0");
 477         fade_test_format_red   (AV_PIX_FMT_YUV422P10, 0.5, "yuv422p10_50");
 478         fade_test_format_red   (AV_PIX_FMT_YUV422P10, 1,   "yuv422p10_100");
 479         fade_test_format_red   (AV_PIX_FMT_RGB24,     0,   "rgb24_0");
 480         fade_test_format_red   (AV_PIX_FMT_RGB24,     0.5, "rgb24_50");
 481         fade_test_format_red   (AV_PIX_FMT_RGB24,     1,   "rgb24_100");
 482         fade_test_format_red   (AV_PIX_FMT_XYZ12LE,   0,   "xyz12le_0");
 483         fade_test_format_red   (AV_PIX_FMT_XYZ12LE,   0.5, "xyz12le_50");
 484         fade_test_format_red   (AV_PIX_FMT_XYZ12LE,   1,   "xyz12le_100");
 485         fade_test_format_red   (AV_PIX_FMT_RGB48LE,   0,   "rgb48le_0");
 486         fade_test_format_red   (AV_PIX_FMT_RGB48LE,   0.5, "rgb48le_50");
 487         fade_test_format_red   (AV_PIX_FMT_RGB48LE,   1,   "rgb48le_100");
 488 }
 489
 490
 491 BOOST_AUTO_TEST_CASE (make_black_test)
 492 {
 493         dcp::Size in_size (512, 512);
 494         dcp::Size out_size (1024, 1024);
 495
 496         list<AVPixelFormat> pix_fmts = {
 497                 AV_PIX_FMT_RGB24, // 2
 498                 AV_PIX_FMT_ARGB,
 499                 AV_PIX_FMT_RGBA,
 500                 AV_PIX_FMT_ABGR,
 501                 AV_PIX_FMT_BGRA,
 502                 AV_PIX_FMT_YUV420P, // 0
 503                 AV_PIX_FMT_YUV411P,
 504                 AV_PIX_FMT_YUV422P10LE,
 505                 AV_PIX_FMT_YUV422P16LE,
 506                 AV_PIX_FMT_YUV444P9LE,
 507                 AV_PIX_FMT_YUV444P9BE,
 508                 AV_PIX_FMT_YUV444P10LE,
 509                 AV_PIX_FMT_YUV444P10BE,
 510                 AV_PIX_FMT_UYVY422,
 511                 AV_PIX_FMT_YUVJ420P,
 512                 AV_PIX_FMT_YUVJ422P,
 513                 AV_PIX_FMT_YUVJ444P,
 514                 AV_PIX_FMT_YUVA420P9BE,
 515                 AV_PIX_FMT_YUVA422P9BE,
 516                 AV_PIX_FMT_YUVA444P9BE,
 517                 AV_PIX_FMT_YUVA420P9LE,
 518                 AV_PIX_FMT_YUVA422P9LE,
 519                 AV_PIX_FMT_YUVA444P9LE,
 520                 AV_PIX_FMT_YUVA420P10BE,
 521                 AV_PIX_FMT_YUVA422P10BE,
 522                 AV_PIX_FMT_YUVA444P10BE,
 523                 AV_PIX_FMT_YUVA420P10LE,
 524                 AV_PIX_FMT_YUVA422P10LE,
 525                 AV_PIX_FMT_YUVA444P10LE,
 526                 AV_PIX_FMT_YUVA420P16BE,
 527                 AV_PIX_FMT_YUVA422P16BE,
 528                 AV_PIX_FMT_YUVA444P16BE,
 529                 AV_PIX_FMT_YUVA420P16LE,
 530                 AV_PIX_FMT_YUVA422P16LE,
 531                 AV_PIX_FMT_YUVA444P16LE,
 532                 AV_PIX_FMT_RGB555LE, // 46
 533         };
 534
 535         int N = 0;
 536         for (auto i: pix_fmts) {
 537                 auto foo = make_shared<Image>(i, in_size, Image::Alignment::PADDED);
 538                 foo->make_black ();
 539                 auto bar = foo->scale (out_size, dcp::YUVToRGB::REC601, AV_PIX_FMT_RGB24, Image::Alignment::PADDED, false);
 540
 541                 uint8_t* p = bar->data()[0];
 542                 for (int y = 0; y < bar->size().height; ++y) {
 543                         uint8_t* q = p;
 544                         for (int x = 0; x < bar->line_size()[0]; ++x) {
 545                                 if (*q != 0) {
 546                                         std::cerr << "x=" << x << ", (x%3)=" << (x%3) << "\n";
 547                                 }
 548                                 BOOST_CHECK_EQUAL (*q++, 0);
 549                         }
 550                         p += bar->stride()[0];
 551                 }
 552
 553                 ++N;
 554         }
 555 }
 556
 557
 558 BOOST_AUTO_TEST_CASE (make_part_black_test)
 559 {
 560         auto proxy = make_shared<FFmpegImageProxy>("test/data/flat_red.png");
 561         auto original = proxy->image(Image::Alignment::PADDED).image;
 562
 563         list<AVPixelFormat> pix_fmts = {
 564                 AV_PIX_FMT_RGB24,
 565                 AV_PIX_FMT_ARGB,
 566                 AV_PIX_FMT_RGBA,
 567                 AV_PIX_FMT_ABGR,
 568                 AV_PIX_FMT_BGRA,
 569                 AV_PIX_FMT_YUV420P,
 570                 AV_PIX_FMT_YUV422P10LE,
 571         };
 572
 573         list<std::pair<int, int>> positions = {
 574                 { 0, 256 },
 575                 { 128, 64 },
 576         };
 577
 578         int N = 0;
 579         for (auto i: pix_fmts) {
 580                 for (auto j: positions) {
 581                         auto foo = original->convert_pixel_format(dcp::YUVToRGB::REC601, i, Image::Alignment::PADDED, false);
 582                         foo->make_part_black (j.first, j.second);
 583                         auto bar = foo->convert_pixel_format (dcp::YUVToRGB::REC601, AV_PIX_FMT_RGB24, Image::Alignment::PADDED, false);
 584
 585                         auto p = bar->data()[0];
 586                         for (int y = 0; y < bar->size().height; ++y) {
 587                                 auto q = p;
 588                                 for (int x = 0; x < bar->size().width; ++x) {
 589                                         int r = *q++;
 590                                         int g = *q++;
 591                                         int b = *q++;
 592                                         if (x >= j.first && x < (j.first + j.second)) {
 593                                                 BOOST_CHECK_MESSAGE (
 594                                                         r < 3, "red=" << static_cast<int>(r) << " at (" << x << "," << y << ") format " << i << " from " << j.first << " width " << j.second
 595                                                         );
 596                                         } else {
 597                                                 BOOST_CHECK_MESSAGE (
 598                                                         r >= 252, "red=" << static_cast<int>(r) << " at (" << x << "," << y << ") format " << i << " from " << j.first << " width " << j.second
 599                                                         );
 600
 601                                         }
 602                                         BOOST_CHECK_MESSAGE (
 603                                                 g == 0, "green=" << static_cast<int>(g) << " at (" << x << "," << y << ") format " << i << " from " << j.first << " width " << j.second
 604                                                 );
 605                                         BOOST_CHECK_MESSAGE (
 606                                                 b == 0, "blue=" << static_cast<int>(b) << " at (" << x << "," << y << ") format " << i << " from " << j.first << " width " << j.second
 607                                                 );
 608                                 }
 609                                 p += bar->stride()[0];
 610                         }
 611
 612                         ++N;
 613                 }
 614         }
 615 }
 616
 617
 618 /** Make sure the image isn't corrupted if it is cropped too much.  This can happen when a
 619  *  filler 128x128 black frame is emitted from the FFmpegDecoder and the overall crop in either direction
 620  *  is greater than 128 pixels.
 621  */
 622 BOOST_AUTO_TEST_CASE (over_crop_test)
 623 {
 624         auto image = make_shared<Image>(AV_PIX_FMT_RGB24, dcp::Size(128, 128), Image::Alignment::PADDED);
 625         image->make_black ();
 626         auto scaled = image->crop_scale_window (
 627                 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
 628                 );
 629         string const filename = "over_crop_test.png";
 630         write_image (scaled, "build/test/" + filename);
 631         check_image ("test/data/" + filename, "build/test/" + filename);
 632 }