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Merge pull request #13447 from alalek:issue_13445

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This commit is contained in:
Alexander Alekhin 2018-12-15 21:17:17 +00:00
commit 4f9c1da806
1 changed files with 11 additions and 7 deletions
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18
modules/videoio/src/cap_dc1394_v2.cpp
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@ -192,7 +192,11 @@ CvDC1394::~CvDC1394()
dc = 0;
}
static CvDC1394 dc1394;
static CvDC1394& getDC1394()
{
static CvDC1394 dc1394;
return dc1394;
}
class CvCaptureCAM_DC1394_v2_CPP : public CvCapture
{
@ -451,7 +455,7 @@ bool CvCaptureCAM_DC1394_v2_CPP::startCapture()
code = dc1394_capture_setup(dcCam, nDMABufs, DC1394_CAPTURE_FLAGS_DEFAULT);
if (code >= 0)
{
FD_SET(dc1394_capture_get_fileno(dcCam), &dc1394.camFds);
FD_SET(dc1394_capture_get_fileno(dcCam), &getDC1394().camFds);
dc1394_video_set_transmission(dcCam, DC1394_ON);
if (cameraId == VIDERE)
{
@ -477,15 +481,15 @@ bool CvCaptureCAM_DC1394_v2_CPP::open(int index)
close();
if (!dc1394.dc)
if (!getDC1394().dc)
goto _exit_;
err = dc1394_camera_enumerate(dc1394.dc, &cameraList);
err = dc1394_camera_enumerate(getDC1394().dc, &cameraList);
if (err < 0 || !cameraList || (unsigned)index >= (unsigned)cameraList->num)
goto _exit_;
guid = cameraList->ids[index].guid;
dcCam = dc1394_camera_new(dc1394.dc, guid);
dcCam = dc1394_camera_new(getDC1394().dc, guid);
if (!dcCam)
goto _exit_;
@ -510,8 +514,8 @@ void CvCaptureCAM_DC1394_v2_CPP::close()
// check for fileno valid before using
int fileno=dc1394_capture_get_fileno(dcCam);
if (fileno>=0 && FD_ISSET(fileno, &dc1394.camFds))
FD_CLR(fileno, &dc1394.camFds);
if (fileno>=0 && FD_ISSET(fileno, &getDC1394().camFds))
FD_CLR(fileno, &getDC1394().camFds);
dc1394_video_set_transmission(dcCam, DC1394_OFF);
dc1394_capture_stop(dcCam);
dc1394_camera_free(dcCam);