Hi,
I want to open and close and open again VideoCapture. I have modify example starter_video.cpp :
int main(int ac, char** av) {
if (ac != 2) {
help(av);
return 1;
}
std::string arg = av[1];
{ // First open
VideoCapture capture(arg);
if (!capture.isOpened())
capture.open(atoi(arg.c_str()));
if (!capture.isOpened()) {
cerr << "Failed to open the video device, video file or image sequence!\n" << endl;
help(av);
return 1;
}
process(capture);
} // First Videocapture must be destroyed here
{//Second Open new object videocapture is allocated here
VideoCapture capture(arg);
if (!capture.isOpened())
capture.open(atoi(arg.c_str()));
if (!capture.isOpened()) {
cerr << "Failed to open the video device, video file or image sequence!\n" << endl;
help(av);
return 1;
}
return process(capture);
}
I can see capture in a window for first opening. For second I have got an error message. Warning and Error message for program :
VIDEOIO ERROR: V4L/V4L2: VIDIOC_S_CROP
press space to save a picture. q or esc to quit
Corrupt JPEG data: 1 extraneous bytes before marker 0xd7
Corrupt JPEG data: 1 extraneous bytes before marker 0xd4
Corrupt JPEG data: 2 extraneous bytes before marker 0xd5
...
Corrupt JPEG data: 2 extraneous bytes before marker 0xd7
> I press ESC Here
VIDEOIO ERROR: V4L2: Pixel format of incoming image is unsupported by OpenCV
press space to save a picture. q or esc to quit
VIDIOC_STREAMON: Bad file descriptor
Unable to stop the stream.: Bad file descriptor
What's wrong in my program or may be in my linux mint with cinamon install?
Version control: 3.0.0-beta-21-g4b97e8c
Thanks for yours helps
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