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use simplified API selection logic in cvCreateCameraCapture as well

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pull/4004/head
Pavel Rojtberg 10 years ago
parent 2909e07cb2
commit b1842a4b89
1 changed files with 71 additions and 166 deletions
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  1. 237
      modules/videoio/src/cap.cpp

237
modules/videoio/src/cap.cpp
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@ -126,233 +126,138 @@ CV_IMPL int cvGetCaptureDomain( CvCapture* capture)
*/
CV_IMPL CvCapture * cvCreateCameraCapture (int index)
{
int domains[] =
{
#ifdef HAVE_MSMF
CV_CAP_MSMF,
#endif
#if 1
CV_CAP_IEEE1394, // identical to CV_CAP_DC1394
#endif
#ifdef HAVE_TYZX
CV_CAP_STEREO,
#endif
#ifdef HAVE_PVAPI
CV_CAP_PVAPI,
#endif
#if 1
CV_CAP_VFW, // identical to CV_CAP_V4L
#endif
#ifdef HAVE_MIL
CV_CAP_MIL,
#endif
#if defined(HAVE_QUICKTIME) || defined(HAVE_QTKIT)
CV_CAP_QT,
#endif
#ifdef HAVE_UNICAP
CV_CAP_UNICAP,
#endif
#ifdef HAVE_OPENNI
CV_CAP_OPENNI,
#endif
#ifdef HAVE_OPENNI2
CV_CAP_OPENNI2,
#endif
#ifdef HAVE_XIMEA
CV_CAP_XIAPI,
#endif
#ifdef HAVE_AVFOUNDATION
CV_CAP_AVFOUNDATION,
#endif
#ifdef HAVE_GIGE_API
CV_CAP_GIGANETIX,
#endif
#ifdef HAVE_INTELPERC
CV_CAP_INTELPERC,
#endif
-1
};
// interpret preferred interface (0 = autodetect)
int pref = (index / 100) * 100;
if (pref)
{
domains[0]=pref;
index %= 100;
domains[1]=-1;
}
// try every possibly installed camera API
for (int i = 0; domains[i] >= 0; i++)
// local variable to memorize the captured device
CvCapture *capture = 0;
switch (pref)
{
#if defined(HAVE_MSMF) || \
defined(HAVE_TYZX) || \
defined(HAVE_VFW) || \
defined(HAVE_LIBV4L) || \
defined(HAVE_CAMV4L) || \
defined(HAVE_CAMV4L2) || \
defined(HAVE_VIDEOIO) || \
defined(HAVE_GSTREAMER) || \
defined(HAVE_DC1394_2) || \
defined(HAVE_DC1394) || \
defined(HAVE_CMU1394) || \
defined(HAVE_MIL) || \
defined(HAVE_QUICKTIME) || \
defined(HAVE_QTKIT) || \
defined(HAVE_UNICAP) || \
defined(HAVE_PVAPI) || \
defined(HAVE_OPENNI) || \
defined(HAVE_OPENNI2) || \
defined(HAVE_XIMEA) || \
defined(HAVE_AVFOUNDATION) || \
defined(HAVE_GIGE_API) || \
defined(HAVE_INTELPERC) || \
(0)
// local variable to memorize the captured device
CvCapture *capture;
#endif
default:
// user specified an API we do not know
// bail out to let the user know that it is not available
if (pref) break;
switch (domains[i])
{
#ifdef HAVE_MSMF
case CV_CAP_MSMF:
capture = cvCreateCameraCapture_MSMF (index);
if (capture)
return capture;
break;
case CV_CAP_MSMF:
if (!capture)
capture = cvCreateCameraCapture_MSMF(index);
if (pref) break;
#endif
#ifdef HAVE_TYZX
case CV_CAP_STEREO:
capture = cvCreateCameraCapture_TYZX (index);
if (capture)
return capture;
break;
case CV_CAP_STEREO:
if (!capture)
capture = cvCreateCameraCapture_TYZX(index);
if (pref) break;
#endif
case CV_CAP_VFW:
case CV_CAP_VFW:
#ifdef HAVE_VFW
capture = cvCreateCameraCapture_VFW (index);
if (capture)
return capture;
if (!capture)
capture = cvCreateCameraCapture_VFW(index);
#endif
#if defined HAVE_LIBV4L || defined HAVE_CAMV4L || defined HAVE_CAMV4L2 || defined HAVE_VIDEOIO
capture = cvCreateCameraCapture_V4L (index);
if (capture)
return capture;
if (!capture)
capture = cvCreateCameraCapture_V4L(index);
#endif
#ifdef HAVE_GSTREAMER
if (!capture)
capture = cvCreateCapture_GStreamer(CV_CAP_GSTREAMER_V4L2, 0);
if (capture)
return capture;
if (!capture)
capture = cvCreateCapture_GStreamer(CV_CAP_GSTREAMER_V4L, 0);
if (capture)
return capture;
#endif
break; //CV_CAP_VFW
if (pref) break; // CV_CAP_VFW
case CV_CAP_FIREWIRE:
case CV_CAP_FIREWIRE:
#ifdef HAVE_DC1394_2
capture = cvCreateCameraCapture_DC1394_2 (index);
if (capture)
return capture;
if (!capture)
capture = cvCreateCameraCapture_DC1394_2(index);
#endif
#ifdef HAVE_DC1394
capture = cvCreateCameraCapture_DC1394 (index);
if (capture)
return capture;
if (!capture)
capture = cvCreateCameraCapture_DC1394(index);
#endif
#ifdef HAVE_CMU1394
capture = cvCreateCameraCapture_CMU (index);
if (capture)
return capture;
if (!capture)
capture = cvCreateCameraCapture_CMU(index);
#endif
#if defined(HAVE_GSTREAMER) && 0
//Re-enable again when gstreamer 1394 support will land in the backend code
// Re-enable again when gstreamer 1394 support will land in the backend code
if (!capture)
capture = cvCreateCapture_GStreamer(CV_CAP_GSTREAMER_1394, 0);
if (capture)
return capture;
#endif
break; //CV_CAP_FIREWIRE
if (pref) break; // CV_CAP_FIREWIRE
#ifdef HAVE_MIL
case CV_CAP_MIL:
capture = cvCreateCameraCapture_MIL (index);
if (capture)
return capture;
break;
case CV_CAP_MIL:
if (!capture)
capture = cvCreateCameraCapture_MIL(index);
if (pref) break;
#endif
#if defined(HAVE_QUICKTIME) || defined(HAVE_QTKIT)
case CV_CAP_QT:
capture = cvCreateCameraCapture_QT (index);
if (capture)
return capture;
break;
case CV_CAP_QT:
if (!capture)
capture = cvCreateCameraCapture_QT(index);
if (pref) break;
#endif
#ifdef HAVE_UNICAP
case CV_CAP_UNICAP:
capture = cvCreateCameraCapture_Unicap (index);
if (capture)
return capture;
break;
case CV_CAP_UNICAP:
if (!capture)
capture = cvCreateCameraCapture_Unicap(index);
if (pref) break;
#endif
#ifdef HAVE_PVAPI
case CV_CAP_PVAPI:
capture = cvCreateCameraCapture_PvAPI (index);
if (capture)
return capture;
break;
case CV_CAP_PVAPI:
if (!capture)
capture = cvCreateCameraCapture_PvAPI(index);
if (pref) break;
#endif
#ifdef HAVE_OPENNI
case CV_CAP_OPENNI:
capture = cvCreateCameraCapture_OpenNI (index);
if (capture)
return capture;
break;
case CV_CAP_OPENNI:
if (!capture)
capture = cvCreateCameraCapture_OpenNI(index);
if (pref) break;
#endif
#ifdef HAVE_OPENNI2
case CV_CAP_OPENNI2:
case CV_CAP_OPENNI2:
if (!capture)
capture = cvCreateCameraCapture_OpenNI(index);
if (capture)
return capture;
break;
if (pref) break;
#endif
#ifdef HAVE_XIMEA
case CV_CAP_XIAPI:
capture = cvCreateCameraCapture_XIMEA (index);
if (capture)
return capture;
break;
case CV_CAP_XIAPI:
if (!capture)
capture = cvCreateCameraCapture_XIMEA(index);
if (pref) break;
#endif
#ifdef HAVE_AVFOUNDATION
case CV_CAP_AVFOUNDATION:
capture = cvCreateCameraCapture_AVFoundation (index);
if (capture)
return capture;
break;
case CV_CAP_AVFOUNDATION:
if (!capture)
capture = cvCreateCameraCapture_AVFoundation(index);
if (pref) break;
#endif
#ifdef HAVE_GIGE_API
case CV_CAP_GIGANETIX:
capture = cvCreateCameraCapture_Giganetix (index);
if (capture)
return capture;
break; // CV_CAP_GIGANETIX
case CV_CAP_GIGANETIX:
if (!capture)
capture = cvCreateCameraCapture_Giganetix(index);
if (pref) break; // CV_CAP_GIGANETIX
#endif
}
}
// failed open a camera
return 0;
return capture;
}
/**

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