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Merge pull request #25333 from asmorkalov:as/dump_v4l2_test_frame

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Added option to dump v4l2 test frame from virtual camera
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Alexander Smorkalov 2024-04-05 13:19:28 +03:00 committed by GitHub
commit e0b7f04fd2
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1 changed files with 9 additions and 0 deletions
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9
modules/videoio/test/test_v4l2.cpp
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@ -17,6 +17,8 @@
#ifdef HAVE_CAMV4L2
// #define DUMP_CAMERA_FRAME
#include "test_precomp.hpp"
#include <opencv2/core/utils/configuration.private.hpp>
#include <linux/videodev2.h>
@ -113,6 +115,13 @@ TEST_P(videoio_v4l2, formats)
EXPECT_EQ(sz, img.size());
EXPECT_EQ(3, img.channels());
EXPECT_EQ(CV_8U, img.depth());
#ifdef DUMP_CAMERA_FRAME
std::string img_name = "frame_" + fourccToString(params.pixel_format);
// V4L2 flag for big-endian formats
if(params.pixel_format & (1 << 31))
img_name += "-BE";
cv::imwrite(img_name + ".png", img);
#endif
}
}
}