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Open Source Computer Vision Library
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154 lines
6.5 KiB
154 lines
6.5 KiB
// This file is part of OpenCV project. |
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// It is subject to the license terms in the LICENSE file found in the top-level directory |
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// of this distribution and at http://opencv.org/license.html. |
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#include "test_precomp.hpp" |
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namespace opencv_test { namespace { |
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typedef tuple< string, Size, Size, int > Param; |
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typedef testing::TestWithParam< Param > videoio_gstreamer; |
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TEST_P(videoio_gstreamer, read_check) |
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{ |
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if (!videoio_registry::hasBackend(CAP_GSTREAMER)) |
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throw SkipTestException("GStreamer backend was not found"); |
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string format = get<0>(GetParam()); |
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Size frame_size = get<1>(GetParam()); |
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Size mat_size = get<2>(GetParam()); |
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int convertToRGB = get<3>(GetParam()); |
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int count_frames = 10; |
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std::ostringstream pipeline; |
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pipeline << "videotestsrc pattern=ball num-buffers=" << count_frames << " ! " << format; |
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pipeline << ", width=" << frame_size.width << ", height=" << frame_size.height << " ! appsink"; |
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VideoCapture cap; |
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ASSERT_NO_THROW(cap.open(pipeline.str(), CAP_GSTREAMER)); |
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ASSERT_TRUE(cap.isOpened()); |
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Mat buffer, decode_frame, gray_frame, rgb_frame; |
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for (int i = 0; i < count_frames; ++i) |
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{ |
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cap >> buffer; |
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decode_frame = (format == "jpegenc ! image/jpeg") ? imdecode(buffer, IMREAD_UNCHANGED) : buffer; |
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EXPECT_EQ(mat_size, decode_frame.size()); |
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cvtColor(decode_frame, rgb_frame, convertToRGB); |
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cvtColor(rgb_frame, gray_frame, COLOR_RGB2GRAY); |
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if (gray_frame.depth() == CV_16U) |
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{ |
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gray_frame.convertTo(gray_frame, CV_8U, 255.0/65535); |
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} |
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vector<Vec3f> circles; |
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HoughCircles(gray_frame, circles, HOUGH_GRADIENT, 1, gray_frame.rows/16, 100, 30, 1, 30 ); |
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if (circles.size() == 1) |
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{ |
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EXPECT_NEAR(18.5, circles[0][2], 1.0); |
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} |
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else |
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{ |
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ADD_FAILURE() << "Found " << circles.size() << " on frame " << i ; |
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} |
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} |
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{ |
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Mat frame; |
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cap >> frame; |
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EXPECT_TRUE(frame.empty()); |
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} |
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cap.release(); |
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ASSERT_FALSE(cap.isOpened()); |
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} |
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static const Param test_data[] = { |
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make_tuple("video/x-raw, format=BGR" , Size(640, 480), Size(640, 480), COLOR_BGR2RGB), |
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make_tuple("video/x-raw, format=BGRA" , Size(640, 480), Size(640, 480), COLOR_BGRA2RGB), |
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make_tuple("video/x-raw, format=RGBA" , Size(640, 480), Size(640, 480), COLOR_RGBA2RGB), |
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make_tuple("video/x-raw, format=BGRx" , Size(640, 480), Size(640, 480), COLOR_BGRA2RGB), |
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make_tuple("video/x-raw, format=RGBx" , Size(640, 480), Size(640, 480), COLOR_RGBA2RGB), |
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make_tuple("video/x-raw, format=GRAY8", Size(640, 480), Size(640, 480), COLOR_GRAY2RGB), |
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make_tuple("video/x-raw, format=UYVY" , Size(640, 480), Size(640, 480), COLOR_YUV2RGB_UYVY), |
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make_tuple("video/x-raw, format=YUY2" , Size(640, 480), Size(640, 480), COLOR_YUV2RGB_YUY2), |
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make_tuple("video/x-raw, format=YVYU" , Size(640, 480), Size(640, 480), COLOR_YUV2RGB_YVYU), |
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make_tuple("video/x-raw, format=NV12" , Size(640, 480), Size(640, 720), COLOR_YUV2RGB_NV12), |
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make_tuple("video/x-raw, format=NV21" , Size(640, 480), Size(640, 720), COLOR_YUV2RGB_NV21), |
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make_tuple("video/x-raw, format=YV12" , Size(640, 480), Size(640, 720), COLOR_YUV2RGB_YV12), |
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make_tuple("video/x-raw, format=I420" , Size(640, 480), Size(640, 720), COLOR_YUV2RGB_I420), |
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make_tuple("video/x-bayer" , Size(640, 480), Size(640, 480), COLOR_BayerBG2RGB), |
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make_tuple("jpegenc ! image/jpeg" , Size(640, 480), Size(640, 480), COLOR_BGR2RGB), |
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// unaligned cases, strides information must be used |
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make_tuple("video/x-raw, format=BGR" , Size(322, 242), Size(322, 242), COLOR_BGR2RGB), |
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make_tuple("video/x-raw, format=GRAY8", Size(322, 242), Size(322, 242), COLOR_GRAY2RGB), |
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make_tuple("video/x-raw, format=NV12" , Size(322, 242), Size(322, 363), COLOR_YUV2RGB_NV12), |
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make_tuple("video/x-raw, format=NV21" , Size(322, 242), Size(322, 363), COLOR_YUV2RGB_NV21), |
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make_tuple("video/x-raw, format=YV12" , Size(322, 242), Size(322, 363), COLOR_YUV2RGB_YV12), |
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make_tuple("video/x-raw, format=I420" , Size(322, 242), Size(322, 363), COLOR_YUV2RGB_I420), |
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// 16 bit |
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make_tuple("video/x-raw, format=GRAY16_LE", Size(640, 480), Size(640, 480), COLOR_GRAY2RGB), |
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make_tuple("video/x-raw, format=GRAY16_BE", Size(640, 480), Size(640, 480), COLOR_GRAY2RGB), |
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}; |
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INSTANTIATE_TEST_CASE_P(videoio, videoio_gstreamer, testing::ValuesIn(test_data)); |
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TEST(videoio_gstreamer, unsupported_pipeline) |
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{ |
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if (!videoio_registry::hasBackend(CAP_GSTREAMER)) |
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throw SkipTestException("GStreamer backend was not found"); |
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// could not link videoconvert0 to matroskamux0, matroskamux0 can't handle caps video/x-raw, format=(string)RGBA |
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std::string pipeline = "appsrc ! videoconvert ! video/x-raw, format=(string)RGBA ! matroskamux ! filesink location=test.mkv"; |
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Size frame_size(640, 480); |
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VideoWriter writer; |
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EXPECT_NO_THROW(writer.open(pipeline, CAP_GSTREAMER, 0/*fourcc*/, 30/*fps*/, frame_size, true)); |
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EXPECT_FALSE(writer.isOpened()); |
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// no frames |
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EXPECT_NO_THROW(writer.release()); |
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} |
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TEST(videoio_gstreamer, gray16_writing) |
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{ |
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if (!videoio_registry::hasBackend(CAP_GSTREAMER)) |
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throw SkipTestException("GStreamer backend was not found"); |
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Size frame_size(320, 240); |
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// generate a noise frame |
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Mat frame = Mat(frame_size, CV_16U); |
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randu(frame, 0, 65535); |
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// generate a temp filename, and fix path separators to how GStreamer expects them |
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cv::String temp_file = cv::tempfile(".raw"); |
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std::replace(temp_file.begin(), temp_file.end(), '\\', '/'); |
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// write noise frame to file using GStreamer |
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std::ostringstream writer_pipeline; |
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writer_pipeline << "appsrc ! filesink location=" << temp_file; |
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std::vector<int> params { |
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VIDEOWRITER_PROP_IS_COLOR, 0/*false*/, |
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VIDEOWRITER_PROP_DEPTH, CV_16U |
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}; |
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VideoWriter writer; |
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ASSERT_NO_THROW(writer.open(writer_pipeline.str(), CAP_GSTREAMER, 0/*fourcc*/, 30/*fps*/, frame_size, params)); |
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ASSERT_TRUE(writer.isOpened()); |
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ASSERT_NO_THROW(writer.write(frame)); |
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ASSERT_NO_THROW(writer.release()); |
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// read noise frame back in |
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Mat written_frame(frame_size, CV_16U); |
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std::ifstream fs(temp_file, std::ios::in | std::ios::binary); |
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fs.read((char*)written_frame.ptr(0), frame_size.width * frame_size.height * 2); |
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ASSERT_TRUE(fs); |
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fs.close(); |
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// compare to make sure it's identical |
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EXPECT_EQ(0, cv::norm(frame, written_frame, NORM_INF)); |
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// remove temp file |
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EXPECT_EQ(0, remove(temp_file.c_str())); |
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} |
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}} // namespace
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