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 static
 149 void
 150 alpha_blend_test_bgra_onto(AVPixelFormat format, string suffix)
 151 {
 152         auto proxy = make_shared<FFmpegImageProxy>(TestPaths::private_data() / "prophet_frame.tiff");
 153         auto raw = proxy->image(Image::Alignment::PADDED).image;
 154         auto background = raw->convert_pixel_format (dcp::YUVToRGB::REC709, format, Image::Alignment::PADDED, false);
 155
 156         auto overlay = make_shared<Image>(AV_PIX_FMT_BGRA, dcp::Size(431, 891), Image::Alignment::PADDED);
 157         overlay->make_transparent ();
 158
 159         for (int y = 0; y < 128; ++y) {
 160                 auto p = overlay->data()[0] + y * overlay->stride()[0];
 161                 for (int x = 0; x < 128; ++x) {
 162                         p[x * 4 + 2] = 255;
 163                         p[x * 4 + 3] = 255;
 164                 }
 165         }
 166
 167         for (int y = 128; y < 256; ++y) {
 168                 auto p = overlay->data()[0] + y * overlay->stride()[0];
 169                 for (int x = 0; x < 128; ++x) {
 170                         p[x * 4 + 1] = 255;
 171                         p[x * 4 + 3] = 255;
 172                 }
 173         }
 174
 175         for (int y = 256; y < 384; ++y) {
 176                 auto p = overlay->data()[0] + y * overlay->stride()[0];
 177                 for (int x = 0; x < 128; ++x) {
 178                         p[x * 4] = 255;
 179                         p[x * 4 + 3] = 255;
 180                 }
 181         }
 182
 183         background->alpha_blend (overlay, Position<int> (13, 17));
 184
 185         auto save = background->convert_pixel_format (dcp::YUVToRGB::REC709, AV_PIX_FMT_RGB24, Image::Alignment::COMPACT, false);
 186
 187         write_image (save, "build/test/image_test_" + suffix + ".png");
 188         check_image ("build/test/image_test_" + suffix + ".png", TestPaths::private_data() / ("image_test_" + suffix + ".png"));
 189 }
 190
 191
 192 /** Test Image::alpha_blend */
 193 BOOST_AUTO_TEST_CASE (alpha_blend_test)
 194 {
 195         alpha_blend_test_bgra_onto(AV_PIX_FMT_RGB24, "rgb24");
 196         alpha_blend_test_bgra_onto(AV_PIX_FMT_BGRA, "bgra");
 197         alpha_blend_test_bgra_onto(AV_PIX_FMT_RGBA, "rgba");
 198         alpha_blend_test_bgra_onto(AV_PIX_FMT_RGB48LE, "rgb48le");
 199         alpha_blend_test_bgra_onto(AV_PIX_FMT_YUV420P, "yuv420p");
 200         alpha_blend_test_bgra_onto(AV_PIX_FMT_YUV420P10, "yuv420p10");
 201         alpha_blend_test_bgra_onto(AV_PIX_FMT_YUV422P10LE, "yuv422p10le");
 202 }
 203
 204
 205 /** Test Image::alpha_blend when the "base" image is XYZ12LE */
 206 BOOST_AUTO_TEST_CASE (alpha_blend_test_onto_xyz)
 207 {
 208         Image xyz(AV_PIX_FMT_XYZ12LE, dcp::Size(50, 50), Image::Alignment::PADDED);
 209         xyz.make_black();
 210
 211         auto overlay = make_shared<Image>(AV_PIX_FMT_RGBA, dcp::Size(8, 8), Image::Alignment::PADDED);
 212         for (int y = 0; y < 8; ++y) {
 213                 uint8_t* p = overlay->data()[0] + (y * overlay->stride()[0]);
 214                 for (int x = 0; x < 8; ++x) {
 215                         *p++ = 255;
 216                         *p++ = 0;
 217                         *p++ = 0;
 218                         *p++ = 255;
 219                 }
 220         }
 221
 222         xyz.alpha_blend(overlay, Position<int>(4, 4));
 223
 224         for (int y = 0; y < 50; ++y) {
 225                 uint16_t* p = reinterpret_cast<uint16_t*>(xyz.data()[0]) + (y * xyz.stride()[0] / 2);
 226                 for (int x = 0; x < 50; ++x) {
 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");
 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");
 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 (crop_scale_window_test8)
 414 {
 415         using namespace boost::filesystem;
 416
 417         auto image = make_shared<Image>(AV_PIX_FMT_YUV420P, dcp::Size(800, 600), Image::Alignment::PADDED);
 418         memset(image->data()[0], 41, image->stride()[0] * 600);
 419         memset(image->data()[1], 240, image->stride()[1] * 300);
 420         memset(image->data()[2], 41, image->stride()[2] * 300);
 421         auto scaled = image->crop_scale_window(
 422                 Crop(), dcp::Size(1435, 1080), dcp::Size(1998, 1080), dcp::YUVToRGB::REC709, VideoRange::FULL, AV_PIX_FMT_YUV420P, VideoRange::FULL, Image::Alignment::PADDED, false
 423                 );
 424         auto file = "crop_scale_window_test8.png";
 425         write_image(scaled->convert_pixel_format(dcp::YUVToRGB::REC709, AV_PIX_FMT_RGB24, Image::Alignment::COMPACT, false), path("build") / "test" / file);
 426         check_image(path("test") / "data" / file, path("build") / "test" / file, 10);
 427 }
 428
 429
 430 BOOST_AUTO_TEST_CASE (as_png_test)
 431 {
 432         auto proxy = make_shared<FFmpegImageProxy>("test/data/3d_test/000001.png");
 433         auto image_rgb = proxy->image(Image::Alignment::PADDED).image;
 434         auto image_bgr = image_rgb->convert_pixel_format(dcp::YUVToRGB::REC709, AV_PIX_FMT_BGRA, Image::Alignment::PADDED, false);
 435         image_as_png(image_rgb).write ("build/test/as_png_rgb.png");
 436         image_as_png(image_bgr).write ("build/test/as_png_bgr.png");
 437
 438         check_image ("test/data/3d_test/000001.png", "build/test/as_png_rgb.png");
 439         check_image ("test/data/3d_test/000001.png", "build/test/as_png_bgr.png");
 440 }
 441
 442
 443 BOOST_AUTO_TEST_CASE (as_jpeg_test)
 444 {
 445         auto proxy = make_shared<FFmpegImageProxy>("test/data/3d_test/000001.png");
 446         auto image_rgb = proxy->image(Image::Alignment::PADDED).image;
 447         auto image_bgr = image_rgb->convert_pixel_format(dcp::YUVToRGB::REC709, AV_PIX_FMT_BGRA, Image::Alignment::PADDED, false);
 448         image_as_jpeg(image_rgb, 60).write("build/test/as_jpeg_rgb.jpeg");
 449         image_as_jpeg(image_bgr, 60).write("build/test/as_jpeg_bgr.jpeg");
 450
 451         check_image ("test/data/as_jpeg_rgb.jpeg", "build/test/as_jpeg_rgb.jpeg");
 452         check_image ("test/data/as_jpeg_bgr.jpeg", "build/test/as_jpeg_bgr.jpeg");
 453 }
 454
 455
 456 /* Very dumb test to fade black to make sure it stays black */
 457 static void
 458 fade_test_format_black (AVPixelFormat f, string name)
 459 {
 460         Image yuv (f, dcp::Size(640, 480), Image::Alignment::PADDED);
 461         yuv.make_black ();
 462         yuv.fade (0);
 463         string const filename = "fade_test_black_" + name + ".png";
 464         image_as_png(yuv.convert_pixel_format(dcp::YUVToRGB::REC709, AV_PIX_FMT_RGBA, Image::Alignment::PADDED, false)).write("build/test/" + filename);
 465         check_image ("test/data/" + filename, "build/test/" + filename);
 466 }
 467
 468
 469 /* Fade red to make sure it stays red */
 470 static void
 471 fade_test_format_red (AVPixelFormat f, float amount, string name)
 472 {
 473         auto proxy = make_shared<FFmpegImageProxy>("test/data/flat_red.png");
 474         auto red = proxy->image(Image::Alignment::PADDED).image->convert_pixel_format(dcp::YUVToRGB::REC709, f, Image::Alignment::PADDED, false);
 475         red->fade (amount);
 476         string const filename = "fade_test_red_" + name + ".png";
 477         image_as_png(red->convert_pixel_format(dcp::YUVToRGB::REC709, AV_PIX_FMT_RGBA, Image::Alignment::PADDED, false)).write("build/test/" + filename);
 478         check_image ("test/data/" + filename, "build/test/" + filename);
 479 }
 480
 481
 482 BOOST_AUTO_TEST_CASE (fade_test)
 483 {
 484         fade_test_format_black (AV_PIX_FMT_YUV420P,   "yuv420p");
 485         fade_test_format_black (AV_PIX_FMT_YUV422P10, "yuv422p10");
 486         fade_test_format_black (AV_PIX_FMT_RGB24,     "rgb24");
 487         fade_test_format_black (AV_PIX_FMT_XYZ12LE,   "xyz12le");
 488         fade_test_format_black (AV_PIX_FMT_RGB48LE,   "rgb48le");
 489
 490         fade_test_format_red   (AV_PIX_FMT_YUV420P,   0,   "yuv420p_0");
 491         fade_test_format_red   (AV_PIX_FMT_YUV420P,   0.5, "yuv420p_50");
 492         fade_test_format_red   (AV_PIX_FMT_YUV420P,   1,   "yuv420p_100");
 493         fade_test_format_red   (AV_PIX_FMT_YUV422P10, 0,   "yuv422p10_0");
 494         fade_test_format_red   (AV_PIX_FMT_YUV422P10, 0.5, "yuv422p10_50");
 495         fade_test_format_red   (AV_PIX_FMT_YUV422P10, 1,   "yuv422p10_100");
 496         fade_test_format_red   (AV_PIX_FMT_RGB24,     0,   "rgb24_0");
 497         fade_test_format_red   (AV_PIX_FMT_RGB24,     0.5, "rgb24_50");
 498         fade_test_format_red   (AV_PIX_FMT_RGB24,     1,   "rgb24_100");
 499         fade_test_format_red   (AV_PIX_FMT_XYZ12LE,   0,   "xyz12le_0");
 500         fade_test_format_red   (AV_PIX_FMT_XYZ12LE,   0.5, "xyz12le_50");
 501         fade_test_format_red   (AV_PIX_FMT_XYZ12LE,   1,   "xyz12le_100");
 502         fade_test_format_red   (AV_PIX_FMT_RGB48LE,   0,   "rgb48le_0");
 503         fade_test_format_red   (AV_PIX_FMT_RGB48LE,   0.5, "rgb48le_50");
 504         fade_test_format_red   (AV_PIX_FMT_RGB48LE,   1,   "rgb48le_100");
 505 }
 506
 507
 508 BOOST_AUTO_TEST_CASE (make_black_test)
 509 {
 510         dcp::Size in_size (512, 512);
 511         dcp::Size out_size (1024, 1024);
 512
 513         list<AVPixelFormat> pix_fmts = {
 514                 AV_PIX_FMT_RGB24, // 2
 515                 AV_PIX_FMT_ARGB,
 516                 AV_PIX_FMT_RGBA,
 517                 AV_PIX_FMT_ABGR,
 518                 AV_PIX_FMT_BGRA,
 519                 AV_PIX_FMT_YUV420P, // 0
 520                 AV_PIX_FMT_YUV411P,
 521                 AV_PIX_FMT_YUV422P10LE,
 522                 AV_PIX_FMT_YUV422P16LE,
 523                 AV_PIX_FMT_YUV444P9LE,
 524                 AV_PIX_FMT_YUV444P9BE,
 525                 AV_PIX_FMT_YUV444P10LE,
 526                 AV_PIX_FMT_YUV444P10BE,
 527                 AV_PIX_FMT_UYVY422,
 528                 AV_PIX_FMT_YUVJ420P,
 529                 AV_PIX_FMT_YUVJ422P,
 530                 AV_PIX_FMT_YUVJ444P,
 531                 AV_PIX_FMT_YUVA420P9BE,
 532                 AV_PIX_FMT_YUVA422P9BE,
 533                 AV_PIX_FMT_YUVA444P9BE,
 534                 AV_PIX_FMT_YUVA420P9LE,
 535                 AV_PIX_FMT_YUVA422P9LE,
 536                 AV_PIX_FMT_YUVA444P9LE,
 537                 AV_PIX_FMT_YUVA420P10BE,
 538                 AV_PIX_FMT_YUVA422P10BE,
 539                 AV_PIX_FMT_YUVA444P10BE,
 540                 AV_PIX_FMT_YUVA420P10LE,
 541                 AV_PIX_FMT_YUVA422P10LE,
 542                 AV_PIX_FMT_YUVA444P10LE,
 543                 AV_PIX_FMT_YUVA420P16BE,
 544                 AV_PIX_FMT_YUVA422P16BE,
 545                 AV_PIX_FMT_YUVA444P16BE,
 546                 AV_PIX_FMT_YUVA420P16LE,
 547                 AV_PIX_FMT_YUVA422P16LE,
 548                 AV_PIX_FMT_YUVA444P16LE,
 549                 AV_PIX_FMT_RGB555LE, // 46
 550         };
 551
 552         int N = 0;
 553         for (auto i: pix_fmts) {
 554                 auto foo = make_shared<Image>(i, in_size, Image::Alignment::PADDED);
 555                 foo->make_black ();
 556                 auto bar = foo->scale (out_size, dcp::YUVToRGB::REC601, AV_PIX_FMT_RGB24, Image::Alignment::PADDED, false);
 557
 558                 uint8_t* p = bar->data()[0];
 559                 for (int y = 0; y < bar->size().height; ++y) {
 560                         uint8_t* q = p;
 561                         for (int x = 0; x < bar->line_size()[0]; ++x) {
 562                                 if (*q != 0) {
 563                                         std::cerr << "x=" << x << ", (x%3)=" << (x%3) << "\n";
 564                                 }
 565                                 BOOST_CHECK_EQUAL (*q++, 0);
 566                         }
 567                         p += bar->stride()[0];
 568                 }
 569
 570                 ++N;
 571         }
 572 }
 573
 574
 575 BOOST_AUTO_TEST_CASE (make_part_black_test)
 576 {
 577         auto proxy = make_shared<FFmpegImageProxy>("test/data/flat_red.png");
 578         auto original = proxy->image(Image::Alignment::PADDED).image;
 579
 580         list<AVPixelFormat> pix_fmts = {
 581                 AV_PIX_FMT_RGB24,
 582                 AV_PIX_FMT_ARGB,
 583                 AV_PIX_FMT_RGBA,
 584                 AV_PIX_FMT_ABGR,
 585                 AV_PIX_FMT_BGRA,
 586                 AV_PIX_FMT_YUV420P,
 587                 AV_PIX_FMT_YUV422P10LE,
 588                 AV_PIX_FMT_YUV444P10LE
 589         };
 590
 591         list<std::pair<int, int>> positions = {
 592                 { 0, 256 },
 593                 { 128, 64 },
 594         };
 595
 596         int N = 0;
 597         for (auto i: pix_fmts) {
 598                 for (auto j: positions) {
 599                         auto foo = original->convert_pixel_format(dcp::YUVToRGB::REC601, i, Image::Alignment::PADDED, false);
 600                         foo->make_part_black (j.first, j.second);
 601                         auto bar = foo->convert_pixel_format (dcp::YUVToRGB::REC601, AV_PIX_FMT_RGB24, Image::Alignment::PADDED, false);
 602
 603                         auto p = bar->data()[0];
 604                         for (int y = 0; y < bar->size().height; ++y) {
 605                                 auto q = p;
 606                                 for (int x = 0; x < bar->size().width; ++x) {
 607                                         int r = *q++;
 608                                         int g = *q++;
 609                                         int b = *q++;
 610                                         if (x >= j.first && x < (j.first + j.second)) {
 611                                                 BOOST_CHECK_MESSAGE (
 612                                                         r < 3, "red=" << static_cast<int>(r) << " at (" << x << "," << y << ") format " << i << " from " << j.first << " width " << j.second
 613                                                         );
 614                                         } else {
 615                                                 BOOST_CHECK_MESSAGE (
 616                                                         r >= 252, "red=" << static_cast<int>(r) << " at (" << x << "," << y << ") format " << i << " from " << j.first << " width " << j.second
 617                                                         );
 618
 619                                         }
 620                                         BOOST_CHECK_MESSAGE (
 621                                                 g == 0, "green=" << static_cast<int>(g) << " at (" << x << "," << y << ") format " << i << " from " << j.first << " width " << j.second
 622                                                 );
 623                                         BOOST_CHECK_MESSAGE (
 624                                                 b == 0, "blue=" << static_cast<int>(b) << " at (" << x << "," << y << ") format " << i << " from " << j.first << " width " << j.second
 625                                                 );
 626                                 }
 627                                 p += bar->stride()[0];
 628                         }
 629
 630                         ++N;
 631                 }
 632         }
 633 }
 634
 635
 636 /** Make sure the image isn't corrupted if it is cropped too much.  This can happen when a
 637  *  filler 128x128 black frame is emitted from the FFmpegDecoder and the overall crop in either direction
 638  *  is greater than 128 pixels.
 639  */
 640 BOOST_AUTO_TEST_CASE (over_crop_test)
 641 {
 642         auto image = make_shared<Image>(AV_PIX_FMT_RGB24, dcp::Size(128, 128), Image::Alignment::PADDED);
 643         image->make_black ();
 644         auto scaled = image->crop_scale_window (
 645                 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
 646                 );
 647         string const filename = "over_crop_test.png";
 648         write_image (scaled, "build/test/" + filename);
 649         check_image ("test/data/" + filename, "build/test/" + filename);
 650 }