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Modify the outputVideoFormat after changing the output format in MSMF backend #24142

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Merged
merged 4 commits into from
Sep 7, 2023
Merged

Modify the outputVideoFormat after changing the output format in MSMF backend #24142

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827c971
fix bug:
lltlo Aug 11, 2023
d690635
test get yuv frame when using CAP_MSMF backend
lltlo Aug 14, 2023
764f218
Revert "test get yuv frame when using CAP_MSMF backend"
lltlo Aug 17, 2023
d631383
add test case : get yuv frame when using CAP_MSMF backend
lltlo Aug 17, 2023
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7 changes: 6 additions & 1 deletion modules/videoio/src/cap_msmf.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1159,7 +1159,12 @@ bool CvCapture_MSMF::configureVideoOutput(MediaType newType, cv::uint32_t outFor
{
initStream(dwVideoStreamIndex, nativeFormat);
}
return initStream(dwVideoStreamIndex, newFormat);
if (!initStream(dwVideoStreamIndex, newFormat))
{
return false;
}
outputVideoFormat = outFormat;
return true;
}

bool CvCapture_MSMF::configureOutput()
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15 changes: 15 additions & 0 deletions modules/videoio/test/test_camera.cpp
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Expand Up @@ -119,6 +119,21 @@ TEST(DISABLED_videoio_camera, v4l_read_mjpg)
capture.release();
}

TEST(DISABLED_videoio_camera, msmf_read_yuyv)
{
VideoCapture capture(CAP_MSMF);
ASSERT_TRUE(capture.isOpened());
ASSERT_TRUE(capture.set(CAP_PROP_FOURCC, VideoWriter::fourcc('Y', 'U', 'Y', 'V')));
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;
int fourcc = (int)capture.get(CAP_PROP_FOURCC);
std::cout << "FOURCC code: " << cv::format("0x%8x", fourcc) << std::endl;
test_readFrames(capture);
capture.release();
}

TEST(DISABLED_videoio_camera, v4l_open_mjpg)
{
VideoCapture capture;
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