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Merge pull request #19370 from OlivierLDff:patch-dshow-convertrgb

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VideoCapture/DSHOW : Allow to set CAP_PROP_CONVERT_RGB before FOURCC/FPS/CHANNEL/WIDTH/HEIGHT.

* 🐛 cap_dshow : Allow to set CAP_PROP_CONVERT_RGB before FOURCC/FPS/CHANNEL

* 🐛 cap_dshow : fix g_VI.setConvertRGB not being called with correct boolean value on first property set.

* ✅ cap_dshow : Test CAP_PROP_CONVERT_RGB persistence

* 🚨 Fix cast from bool to double

* 🚨 Fix trailing whitespace
This commit is contained in:
Olivier Le Doeuff
2021-01-29 11:18:09 +01:00
committed by GitHub
parent 6be9496d73
commit 4c7f56263e
3 changed files with 32 additions and 1 deletions
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modules/videoio/test/test_camera.cpp
+21
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@@ -72,6 +72,27 @@ TEST(DISABLED_videoio_camera, basic)
capture.release();
}
// Test that CAP_PROP_CONVERT_RGB remain to false (default is true) after other supported property are set.
// The test use odd value to be almost sure to trigger code responsible for recreating the device.
TEST(DISABLED_videoio_camera, dshow_convert_rgb_persistency)
{
VideoCapture capture(CAP_DSHOW);
ASSERT_TRUE(capture.isOpened());
ASSERT_TRUE(capture.set(CAP_PROP_CONVERT_RGB, 0));
ASSERT_DOUBLE_EQ(capture.get(CAP_PROP_CONVERT_RGB), 0);
capture.set(CAP_PROP_FRAME_WIDTH, 641);
capture.set(CAP_PROP_FRAME_HEIGHT, 481);
capture.set(CAP_PROP_FPS, 31);
capture.set(CAP_PROP_CHANNEL, 1);
capture.set(cv::CAP_PROP_FOURCC, cv::VideoWriter::fourcc('Y', '1', '6', ' '));
std::cout << "Camera 0 via " << capture.getBackendName() << " backend" << std::endl;
std::cout << "Frame width: " << capture.get(CAP_PROP_FRAME_WIDTH) << std::endl;
std::cout << " height: " << capture.get(CAP_PROP_FRAME_HEIGHT) << std::endl;
std::cout << "Capturing FPS: " << capture.get(CAP_PROP_FPS) << std::endl;
ASSERT_DOUBLE_EQ(capture.get(CAP_PROP_CONVERT_RGB), 0);
capture.release();
}
TEST(DISABLED_videoio_camera, v4l_read_mjpg)
{
VideoCapture capture(CAP_V4L2);