f4334277
 Hu Chunming
提交3rdparty
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// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html.
#include "test_precomp.hpp"
namespace opencv_test { namespace {
typedef tuple< string, Size, Size, int > Param;
typedef testing::TestWithParam< Param > videoio_gstreamer;
TEST_P(videoio_gstreamer, read_check)
{
if (!videoio_registry::hasBackend(CAP_GSTREAMER))
throw SkipTestException("GStreamer backend was not found");
string format = get<0>(GetParam());
Size frame_size = get<1>(GetParam());
Size mat_size = get<2>(GetParam());
int convertToRGB = get<3>(GetParam());
int count_frames = 10;
std::ostringstream pipeline;
pipeline << "videotestsrc pattern=ball num-buffers=" << count_frames << " ! " << format;
pipeline << ", width=" << frame_size.width << ", height=" << frame_size.height << " ! appsink";
VideoCapture cap;
ASSERT_NO_THROW(cap.open(pipeline.str(), CAP_GSTREAMER));
ASSERT_TRUE(cap.isOpened());
Mat buffer, decode_frame, gray_frame, rgb_frame;
for (int i = 0; i < count_frames; ++i)
{
cap >> buffer;
decode_frame = (format == "jpegenc ! image/jpeg") ? imdecode(buffer, IMREAD_UNCHANGED) : buffer;
EXPECT_EQ(mat_size, decode_frame.size());
cvtColor(decode_frame, rgb_frame, convertToRGB);
cvtColor(rgb_frame, gray_frame, COLOR_RGB2GRAY);
if (gray_frame.depth() == CV_16U)
{
gray_frame.convertTo(gray_frame, CV_8U, 255.0/65535);
}
vector<Vec3f> circles;
HoughCircles(gray_frame, circles, HOUGH_GRADIENT, 1, gray_frame.rows/16, 100, 30, 1, 30 );
if (circles.size() == 1)
{
EXPECT_NEAR(18.5, circles[0][2], 1.0);
}
else
{
ADD_FAILURE() << "Found " << circles.size() << " on frame " << i ;
}
}
{
Mat frame;
cap >> frame;
EXPECT_TRUE(frame.empty());
}
cap.release();
ASSERT_FALSE(cap.isOpened());
}
static const Param test_data[] = {
make_tuple("video/x-raw, format=BGR" , Size(640, 480), Size(640, 480), COLOR_BGR2RGB),
make_tuple("video/x-raw, format=BGRA" , Size(640, 480), Size(640, 480), COLOR_BGRA2RGB),
make_tuple("video/x-raw, format=RGBA" , Size(640, 480), Size(640, 480), COLOR_RGBA2RGB),
make_tuple("video/x-raw, format=BGRx" , Size(640, 480), Size(640, 480), COLOR_BGRA2RGB),
make_tuple("video/x-raw, format=RGBx" , Size(640, 480), Size(640, 480), COLOR_RGBA2RGB),
make_tuple("video/x-raw, format=GRAY8", Size(640, 480), Size(640, 480), COLOR_GRAY2RGB),
make_tuple("video/x-raw, format=UYVY" , Size(640, 480), Size(640, 480), COLOR_YUV2RGB_UYVY),
make_tuple("video/x-raw, format=YUY2" , Size(640, 480), Size(640, 480), COLOR_YUV2RGB_YUY2),
make_tuple("video/x-raw, format=YVYU" , Size(640, 480), Size(640, 480), COLOR_YUV2RGB_YVYU),
make_tuple("video/x-raw, format=NV12" , Size(640, 480), Size(640, 720), COLOR_YUV2RGB_NV12),
make_tuple("video/x-raw, format=NV21" , Size(640, 480), Size(640, 720), COLOR_YUV2RGB_NV21),
make_tuple("video/x-raw, format=YV12" , Size(640, 480), Size(640, 720), COLOR_YUV2RGB_YV12),
make_tuple("video/x-raw, format=I420" , Size(640, 480), Size(640, 720), COLOR_YUV2RGB_I420),
make_tuple("video/x-bayer" , Size(640, 480), Size(640, 480), COLOR_BayerBG2RGB),
make_tuple("jpegenc ! image/jpeg" , Size(640, 480), Size(640, 480), COLOR_BGR2RGB),
// unaligned cases, strides information must be used
make_tuple("video/x-raw, format=BGR" , Size(322, 242), Size(322, 242), COLOR_BGR2RGB),
make_tuple("video/x-raw, format=GRAY8", Size(322, 242), Size(322, 242), COLOR_GRAY2RGB),
make_tuple("video/x-raw, format=NV12" , Size(322, 242), Size(322, 363), COLOR_YUV2RGB_NV12),
make_tuple("video/x-raw, format=NV21" , Size(322, 242), Size(322, 363), COLOR_YUV2RGB_NV21),
make_tuple("video/x-raw, format=YV12" , Size(322, 242), Size(322, 363), COLOR_YUV2RGB_YV12),
make_tuple("video/x-raw, format=I420" , Size(322, 242), Size(322, 363), COLOR_YUV2RGB_I420),
// 16 bit
make_tuple("video/x-raw, format=GRAY16_LE", Size(640, 480), Size(640, 480), COLOR_GRAY2RGB),
make_tuple("video/x-raw, format=GRAY16_BE", Size(640, 480), Size(640, 480), COLOR_GRAY2RGB),
};
INSTANTIATE_TEST_CASE_P(videoio, videoio_gstreamer, testing::ValuesIn(test_data));
TEST(videoio_gstreamer, unsupported_pipeline)
{
if (!videoio_registry::hasBackend(CAP_GSTREAMER))
throw SkipTestException("GStreamer backend was not found");
// could not link videoconvert0 to matroskamux0, matroskamux0 can't handle caps video/x-raw, format=(string)RGBA
std::string pipeline = "appsrc ! videoconvert ! video/x-raw, format=(string)RGBA ! matroskamux ! filesink location=test.mkv";
Size frame_size(640, 480);
VideoWriter writer;
EXPECT_NO_THROW(writer.open(pipeline, CAP_GSTREAMER, 0/*fourcc*/, 30/*fps*/, frame_size, true));
EXPECT_FALSE(writer.isOpened());
// no frames
EXPECT_NO_THROW(writer.release());
}
TEST(videoio_gstreamer, gray16_writing)
{
if (!videoio_registry::hasBackend(CAP_GSTREAMER))
throw SkipTestException("GStreamer backend was not found");
Size frame_size(320, 240);
// generate a noise frame
Mat frame = Mat(frame_size, CV_16U);
randu(frame, 0, 65535);
// generate a temp filename, and fix path separators to how GStreamer expects them
cv::String temp_file = cv::tempfile(".raw");
std::replace(temp_file.begin(), temp_file.end(), '\\', '/');
// write noise frame to file using GStreamer
std::ostringstream writer_pipeline;
writer_pipeline << "appsrc ! filesink location=" << temp_file;
std::vector<int> params {
VIDEOWRITER_PROP_IS_COLOR, 0/*false*/,
VIDEOWRITER_PROP_DEPTH, CV_16U
};
VideoWriter writer;
ASSERT_NO_THROW(writer.open(writer_pipeline.str(), CAP_GSTREAMER, 0/*fourcc*/, 30/*fps*/, frame_size, params));
ASSERT_TRUE(writer.isOpened());
ASSERT_NO_THROW(writer.write(frame));
ASSERT_NO_THROW(writer.release());
// read noise frame back in
Mat written_frame(frame_size, CV_16U);
std::ifstream fs(temp_file, std::ios::in | std::ios::binary);
fs.read((char*)written_frame.ptr(0), frame_size.width * frame_size.height * 2);
ASSERT_TRUE(fs);
fs.close();
// compare to make sure it's identical
EXPECT_EQ(0, cv::norm(frame, written_frame, NORM_INF));
// remove temp file
EXPECT_EQ(0, remove(temp_file.c_str()));
}
}} // namespace
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