+BOOST_AUTO_TEST_CASE (make_part_black_test)
+{
+ auto proxy = make_shared<FFmpegImageProxy>("test/data/flat_red.png");
+ auto original = proxy->image(Image::Alignment::PADDED).image;
+
+ list<AVPixelFormat> pix_fmts = {
+ AV_PIX_FMT_RGB24,
+ AV_PIX_FMT_ARGB,
+ AV_PIX_FMT_RGBA,
+ AV_PIX_FMT_ABGR,
+ AV_PIX_FMT_BGRA,
+ AV_PIX_FMT_YUV420P,
+ AV_PIX_FMT_YUV422P10LE,
+ AV_PIX_FMT_YUV444P10LE
+ };
+
+ list<std::pair<int, int>> positions = {
+ { 0, 256 },
+ { 128, 64 },
+ };
+
+ int N = 0;
+ for (auto i: pix_fmts) {
+ for (auto j: positions) {
+ auto foo = original->convert_pixel_format(dcp::YUVToRGB::REC601, i, Image::Alignment::PADDED, false);
+ foo->make_part_black (j.first, j.second);
+ auto bar = foo->convert_pixel_format (dcp::YUVToRGB::REC601, AV_PIX_FMT_RGB24, Image::Alignment::PADDED, false);
+
+ auto p = bar->data()[0];
+ for (int y = 0; y < bar->size().height; ++y) {
+ auto q = p;
+ for (int x = 0; x < bar->size().width; ++x) {
+ int r = *q++;
+ int g = *q++;
+ int b = *q++;
+ if (x >= j.first && x < (j.first + j.second)) {
+ BOOST_CHECK_MESSAGE (
+ r < 3, "red=" << static_cast<int>(r) << " at (" << x << "," << y << ") format " << i << " from " << j.first << " width " << j.second
+ );
+ } else {
+ BOOST_CHECK_MESSAGE (
+ r >= 252, "red=" << static_cast<int>(r) << " at (" << x << "," << y << ") format " << i << " from " << j.first << " width " << j.second
+ );
+
+ }
+ BOOST_CHECK_MESSAGE (
+ g == 0, "green=" << static_cast<int>(g) << " at (" << x << "," << y << ") format " << i << " from " << j.first << " width " << j.second
+ );
+ BOOST_CHECK_MESSAGE (
+ b == 0, "blue=" << static_cast<int>(b) << " at (" << x << "," << y << ") format " << i << " from " << j.first << " width " << j.second
+ );
+ }
+ p += bar->stride()[0];
+ }
+
+ ++N;
+ }
+ }
+}
+
+