+
+ /* Then some silence */
+
+ for (int i = 28; i < 144; ++i) {
+ fr = sound_reader->get_frame (i);
+ for (int j = 0; j < fr->samples(); ++j) {
+ for (int k = 0; k < 6; ++k) {
+ BOOST_CHECK_EQUAL (fr->get(k, j), 0);
+ }
+ }
+ }
+
+ /* Check picture */
+
+ auto reel_picture = reels.front()->main_picture();
+ BOOST_REQUIRE (reel_picture);
+ auto picture = dynamic_pointer_cast<dcp::MonoPictureAsset> (reel_picture->asset());
+ BOOST_REQUIRE (picture);
+ BOOST_CHECK_EQUAL (picture->intrinsic_duration(), 144);
+
+ auto picture_reader = picture->start_read ();
+
+ /* First 5 * 24 = 120 frames should be black, possibly with a little noise to raise the bitrate */
+
+ shared_ptr<dcp::OpenJPEGImage> ref;
+ for (int i = 0; i < 120; ++i) {
+ auto fr = picture_reader->get_frame (i);
+ auto image = fr->xyz_image ();
+ auto const size = image->size ();
+ if (i == 0) {
+ /* Check the first frame pixel by pixel... */
+ for (int c = 0; c < 3; ++c) {
+ for (int y = 0; y < size.height; ++y) {
+ for (int x = 0; x < size.width; ++x) {
+ BOOST_REQUIRE (image->data(c)[y * size.height + x] <= 3);
+ }
+ }
+ }
+ ref = image;
+ } else {
+ /* ... then all the others should be the same */
+ for (int c = 0; c < 3; ++c) {
+ BOOST_REQUIRE_MESSAGE (
+ memcmp (image->data(c), ref->data(c), size.width * size.height * sizeof(int)) == 0,
+ "failed on frame " << i << " component " << c
+ );
+ }
+ }
+ }
+
+ /* Then 24 red, perhaps also with some noise */
+
+ for (int i = 120; i < 144; ++i) {
+ auto fr = picture_reader->get_frame (i);
+ auto image = fr->xyz_image ();
+ auto const size = image->size ();
+ if (i == 120) {
+ for (int y = 0; y < size.height; ++y) {
+ for (int x = 0; x < size.width; ++x) {
+ BOOST_REQUIRE_MESSAGE (
+ abs(image->data(0)[y * size.height + x] - 2808) <= 5,
+ "failed on frame " << i << " with image data " << image->data(0)[y * size.height + x]
+ );
+ BOOST_REQUIRE_MESSAGE (
+ abs(image->data(1)[y * size.height + x] - 2176) <= 5,
+ "failed on frame " << i << " with image data " << image->data(1)[y * size.height + x]
+ );
+ BOOST_REQUIRE_MESSAGE (
+ abs(image->data(2)[y * size.height + x] - 865) <= 5,
+ "failed on frame " << i << " with image data " << image->data(2)[y * size.height + x]
+ );
+ }
+ }
+ ref = image;
+ } else {
+ for (int c = 0; c < 3; ++c) {
+ BOOST_REQUIRE_MESSAGE (
+ memcmp (image->data(c), ref->data(c), size.width * size.height * sizeof(int)) == 0,
+ "failed on frame " << i << " component " << c
+ );
+ }
+ }
+ }
+