MSMF can't determine correct format when self-compiling vs using prebuilt binaries #16711
Description
System information (version)
- OpenCV => 4.2, 8808aac
- Operating System / Platform => Windows 10 64 Bit
- Compiler => Visual Studio 2019
Detailed description
A simple test program to display a video feed that worked at 4de7015 no longer works at 8808aac:
[ WARN:0] global D:\lib\opencv\modules\videoio\src\cap_msmf.cpp (686) CvCapture_MSMF::initStream Failed to set mediaType (stream 0, (0x0 @ 1) (HRESULT -2147024809)
OpenCV(4.2.0-dev) Error: Assertion failed (!_src.empty()) in cv::cvtColor, file D:\lib\opencv\modules\imgproc\src\color.cpp, line 182
In CvCapture_MSMF::configureOutput, I get bestMatch = ({stream=0 media=0 }, {width=0 height=0 stride=0 ...}) which causes the assertion later on in the program. Previously with prebuilt libraries, the format was:
+ cv::IVideoCapture {...} opencv_world420d.dll!cv::IVideoCapture
MF {...} opencv_world420d.dll!`anonymous-namespace'::Media_Foundation &
+ filename "" opencv_world420d.dll!std::string
camid 0 int
captureMode MODE_HW (1) opencv_world420d.dll!CvCapture_MSMF::MSMFCapture_Mode
+ D3DDev {p={0x000001e71836e9f8 <Information not available, no symbols loaded for d3d11.dll>} } opencv_world420d.dll!`anonymous-namespace'::ComPtr<ID3D11Device>
+ D3DMgr {p={0x000001e717eca580 <Information not available, no symbols loaded for mfplat.dll>} } opencv_world420d.dll!`anonymous-namespace'::ComPtr<IMFDXGIDeviceManager>
+ videoFileSource {p={0x000001e71c56d260 <Information not available, no symbols loaded for mfreadwrite.dll>} } opencv_world420d.dll!`anonymous-namespace'::ComPtr<IMFSourceReader>
dwStreamIndex 0 unsigned long
+ nativeFormat {MF_MT_FRAME_SIZE=1280000 height=800 width=1600 ...} opencv_world420d.dll!`anonymous-namespace'::MediaType
+ captureFormat {MF_MT_FRAME_SIZE=1280000 height=800 width=1600 ...} opencv_world420d.dll!`anonymous-namespace'::MediaType
outputFormat 861030210 unsigned int
requestedWidth 640 unsigned int
requestedHeight 480 unsigned int
convertFormat true bool
aspectN 1 unsigned int
aspectD 1 unsigned int
duration 0 __int64
frameStep 166666 __int64
+ videoSample {p={0x000001e71c58c1f0 <Information not available, no symbols loaded for mfplat.dll>} } opencv_world420d.dll!`anonymous-namespace'::ComPtr<IMFSample>
sampleTime 0 __int64
isOpen true bool
+ readCallback {p={0x000001e7165c3130 {m_nRefCount=4 m_mutex=unlocked m_hEvent=0x00000000000007d8 ...}} } opencv_world420d.dll!`anonymous-namespace'::ComPtr<IMFSourceReaderCallback>
Steps to reproduce
#include <opencv2/core.hpp>
#include <opencv2/imgcodecs.hpp>
#include <opencv2/calib3d.hpp>
#include <opencv2/highgui.hpp>
#include <opencv2/videoio.hpp>
#include <iostream>
#include <thread>
static void read_config(const char* filename, cv::Mat &cameraMatrix, cv::Mat &distCoeffs)
{
cv::FileStorage fs(filename, cv::FileStorage::READ);
if (!fs.isOpened())
{
std::cout << "Could not open the configuration file: \"" << filename << "\"" << std::endl;
return;
}
fs["camera_matrix"] >> cameraMatrix;
fs["distortion_coefficients"] >> distCoeffs;
}
int main(int argc, char** argv)
{
cv::VideoCapture video(0);
cv::Mat frame;
cv::Mat temp;
cv::Mat cameraMatrix_L, distCoeffs_L;
read_config("index_left_cropped.xml", cameraMatrix_L, distCoeffs_L);
cv::Mat cameraMatrix_R, distCoeffs_R;
read_config("index_right_cropped.xml", cameraMatrix_R, distCoeffs_R);
cv::namedWindow("Display window", cv::WINDOW_AUTOSIZE); // Create a window for display.
while (true)
{
if (!video.read(frame))
continue;
/*
cv::undistort(frame(cv::Rect(0, 0, 800, 800)), temp, cameraMatrix_L, distCoeffs_L);
temp.copyTo(frame(cv::Rect(0, 0, 800, 800)));
cv::undistort(frame(cv::Rect(800, 0, 800, 800)), temp, cameraMatrix_R, distCoeffs_R);
temp.copyTo(frame(cv::Rect(800, 0, 800, 800)));
*/
cv::imshow("Display window", frame); // Show our image inside it.
char c = (char)cv::waitKey(16); // Wait for a keystroke in the window
if (c == 27)
break;
}
return 0;
}