mirror of https://github.com/opencv/opencv.git
Alexander Alekhin
7 years ago
parent
06c1890639
commit
cd9e43704e
8 changed files with 944 additions and 587 deletions
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// This file is part of OpenCV project.
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// It is subject to the license terms in the LICENSE file found in the top-level directory
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// of this distribution and at http://opencv.org/license.html.
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#include "precomp.hpp" |
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#include "videoio_registry.hpp" |
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using namespace cv; |
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// Legacy C-like API
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CV_IMPL CvCapture* cvCreateCameraCapture(int index) |
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{ |
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// interpret preferred interface (0 = autodetect)
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int apiPreference = (index / 100) * 100; |
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if (apiPreference) |
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{ |
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index %= 100; |
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} |
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const std::vector<VideoBackendInfo> backends = cv::videoio_registry::getAvailableBackends_CaptureByIndex(); |
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for (size_t i = 0; i < backends.size(); i++) |
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{ |
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const VideoBackendInfo& info = backends[i]; |
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if (apiPreference == CAP_ANY || apiPreference == info.id) |
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{ |
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CvCapture* capture = NULL; |
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Ptr<IVideoCapture> icap; // unused
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VideoCapture_create(capture, icap, info.id, index); |
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if (capture) |
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{ |
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return capture; |
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} |
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if (!icap.empty()) |
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{ |
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CV_LOG_WARNING(NULL, "cvCreateFileCaptureWithPreference: backend " << info.name << " doesn't support legacy API anymore.") |
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} |
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} |
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} |
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return NULL; |
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} |
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CV_IMPL CvCapture* cvCreateFileCaptureWithPreference(const char* filename, int apiPreference) |
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{ |
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const std::vector<VideoBackendInfo> backends = cv::videoio_registry::getAvailableBackends_CaptureByFilename(); |
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for (size_t i = 0; i < backends.size(); i++) |
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{ |
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const VideoBackendInfo& info = backends[i]; |
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if (apiPreference == CAP_ANY || apiPreference == info.id) |
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{ |
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CvCapture* capture = NULL; |
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Ptr<IVideoCapture> icap; // unused
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VideoCapture_create(capture, icap, info.id, filename); |
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if (capture) |
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{ |
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return capture; |
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} |
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if (!icap.empty()) |
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{ |
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CV_LOG_WARNING(NULL, "cvCreateFileCaptureWithPreference: backend " << info.name << " doesn't support legacy API anymore.") |
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} |
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} |
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} |
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return NULL; |
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} |
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CV_IMPL CvCapture* cvCreateFileCapture(const char * filename) |
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{ |
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return cvCreateFileCaptureWithPreference(filename, CAP_ANY); |
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} |
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CV_IMPL CvVideoWriter* cvCreateVideoWriter(const char* filename, int fourcc, |
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double fps, CvSize frameSize, int is_color) |
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{ |
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const std::vector<VideoBackendInfo> backends = cv::videoio_registry::getAvailableBackends_Writer(); |
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for (size_t i = 0; i < backends.size(); i++) |
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{ |
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const VideoBackendInfo& info = backends[i]; |
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{ |
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CvVideoWriter* writer_ = NULL; |
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Ptr<IVideoWriter> iwriter; // unused
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VideoWriter_create(writer_, iwriter, info.id, filename, fourcc, fps, frameSize, is_color != 0); |
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if (writer_) |
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{ |
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return writer_; |
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} |
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if (!iwriter.empty()) |
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{ |
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CV_LOG_WARNING(NULL, "cvCreateVideoWriter: backend " << info.name << " doesn't support legacy API anymore.") |
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} |
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} |
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} |
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return NULL; |
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} |
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CV_IMPL int cvWriteFrame(CvVideoWriter* writer, const IplImage* image) |
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{ |
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return writer ? writer->writeFrame(image) : 0; |
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} |
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CV_IMPL void cvReleaseVideoWriter(CvVideoWriter** pwriter) |
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{ |
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if( pwriter && *pwriter ) |
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{ |
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delete *pwriter; |
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*pwriter = 0; |
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} |
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} |
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CV_IMPL void cvReleaseCapture(CvCapture** pcapture) |
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{ |
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if (pcapture && *pcapture) |
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{ |
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delete *pcapture; |
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*pcapture = 0; |
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} |
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} |
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CV_IMPL IplImage* cvQueryFrame(CvCapture* capture) |
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{ |
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if (!capture) |
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return 0; |
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if (!capture->grabFrame()) |
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return 0; |
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return capture->retrieveFrame(0); |
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} |
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CV_IMPL int cvGrabFrame(CvCapture* capture) |
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{ |
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return capture ? capture->grabFrame() : 0; |
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} |
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CV_IMPL IplImage* cvRetrieveFrame(CvCapture* capture, int idx) |
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{ |
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return capture ? capture->retrieveFrame(idx) : 0; |
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} |
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CV_IMPL double cvGetCaptureProperty(CvCapture* capture, int id) |
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{ |
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return capture ? capture->getProperty(id) : 0; |
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} |
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CV_IMPL int cvSetCaptureProperty(CvCapture* capture, int id, double value) |
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{ |
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return capture ? capture->setProperty(id, value) : 0; |
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} |
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CV_IMPL int cvGetCaptureDomain(CvCapture* capture) |
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{ |
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return capture ? capture->getCaptureDomain() : 0; |
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} |
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@ -0,0 +1,637 @@ |
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// This file is part of OpenCV project.
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// It is subject to the license terms in the LICENSE file found in the top-level directory
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// of this distribution and at http://opencv.org/license.html.
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#include "precomp.hpp" |
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#include "videoio_registry.hpp" |
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#include "cap_intelperc.hpp" |
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#include "cap_dshow.hpp" |
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#ifdef HAVE_MFX |
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#include "cap_mfx_reader.hpp" |
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#include "cap_mfx_writer.hpp" |
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#endif |
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// All WinRT versions older than 8.0 should provide classes used for video support
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#if defined(WINRT) && !defined(WINRT_8_0) && defined(__cplusplus_winrt) |
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# include "cap_winrt_capture.hpp" |
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# include "cap_winrt_bridge.hpp" |
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# define WINRT_VIDEO |
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#endif |
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#if defined _M_X64 && defined _MSC_VER && !defined CV_ICC |
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#pragma optimize("",off) |
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#pragma warning(disable: 4748) |
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#endif |
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using namespace cv; |
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namespace cv |
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{ |
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static bool param_VIDEOIO_DEBUG = utils::getConfigurationParameterBool("OPENCV_VIDEOIO_DEBUG", false); |
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static bool param_VIDEOCAPTURE_DEBUG = utils::getConfigurationParameterBool("OPENCV_VIDEOCAPTURE_DEBUG", false); |
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static bool param_VIDEOWRITER_DEBUG = utils::getConfigurationParameterBool("OPENCV_VIDEOWRITER_DEBUG", false); |
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namespace { |
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#define DECLARE_BACKEND(cap, name, mode) { cap, (BackendMode)(mode), 1000, name } |
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/** Ordering guidelines:
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- modern optimized, multi-platform libraries: ffmpeg, gstreamer, Media SDK |
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- platform specific universal SDK: WINRT, QTKIT/AVFOUNDATION, MSMF/VFW/DSHOW, V4L/V4L2 |
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- RGB-D: OpenNI/OpenNI2, INTELPERC/REALSENSE |
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- special OpenCV (file-based): "images", "mjpeg" |
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- special camera SDKs, including stereo: other special SDKs: FIREWIRE/1394, XIMEA/ARAVIS/GIGANETIX/PVAPI(GigE), UNICAP |
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- other: XINE, gphoto2, etc |
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*/ |
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static const struct VideoBackendInfo builtin_backends[] = |
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{ |
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#ifdef HAVE_FFMPEG |
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DECLARE_BACKEND(CAP_FFMPEG, "FFMPEG", MODE_CAPTURE_BY_FILENAME | MODE_WRITER), |
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#endif |
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#ifdef HAVE_GSTREAMER |
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DECLARE_BACKEND(CAP_GSTREAMER, "GSTREAMER", MODE_CAPTURE_ALL | MODE_WRITER), |
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#endif |
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#ifdef HAVE_MFX // Media SDK
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DECLARE_BACKEND(CAP_INTEL_MFX, "INTEL_MFX", MODE_CAPTURE_BY_FILENAME | MODE_WRITER), |
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#endif |
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// Apple platform
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#if defined(HAVE_QUICKTIME) || defined(HAVE_QTKIT) |
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DECLARE_BACKEND(CAP_QT, "QUICKTIME", MODE_CAPTURE_ALL | MODE_WRITER), |
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#endif |
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#ifdef HAVE_AVFOUNDATION |
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DECLARE_BACKEND(CAP_AVFOUNDATION, "AVFOUNDATION", MODE_CAPTURE_ALL | MODE_WRITER), |
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#endif |
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// Windows
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#ifdef WINRT_VIDEO |
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DECLARE_BACKEND(CAP_WINRT, "WINRT", MODE_CAPTURE_BY_FILENAME), |
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#endif |
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#ifdef HAVE_MSMF |
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DECLARE_BACKEND(CAP_MSMF, "MSMF", MODE_CAPTURE_ALL | MODE_WRITER), |
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#endif |
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#ifdef HAVE_VFW |
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DECLARE_BACKEND(CAP_VFW, "VFW", MODE_CAPTURE_ALL | MODE_WRITER), |
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#endif |
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#ifdef HAVE_DSHOW |
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DECLARE_BACKEND(CAP_DSHOW, "DSHOW", MODE_CAPTURE_ALL), |
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#endif |
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// Linux, some Unix
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#if defined HAVE_CAMV4L2 |
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DECLARE_BACKEND(CAP_V4L2, "V4L2", MODE_CAPTURE_ALL), |
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#elif defined HAVE_LIBV4L || defined HAVE_CAMV4L |
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DECLARE_BACKEND(CAP_V4L, "V4L", MODE_CAPTURE_ALL), |
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#endif |
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// RGB-D universal
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#ifdef HAVE_OPENNI |
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DECLARE_BACKEND(CAP_OPENNI, "OPENNI", MODE_CAPTURE_ALL), |
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#endif |
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#ifdef HAVE_OPENNI2 |
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DECLARE_BACKEND(CAP_OPENNI2, "OPENNI2", MODE_CAPTURE_ALL), |
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#endif |
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#ifdef HAVE_INTELPERC |
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DECLARE_BACKEND(CAP_INTELPERC, "INTEL_PERC", MODE_CAPTURE_ALL), |
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#endif |
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// OpenCV file-based only
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DECLARE_BACKEND(CAP_IMAGES, "CV_IMAGES", MODE_CAPTURE_BY_FILENAME | MODE_WRITER), |
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DECLARE_BACKEND(CAP_OPENCV_MJPEG, "CV_MJPEG", MODE_CAPTURE_BY_FILENAME | MODE_WRITER), |
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// special interfaces / stereo cameras / other SDKs
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#if defined(HAVE_DC1394_2) || defined(HAVE_DC1394) || defined(HAVE_CMU1394) |
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DECLARE_BACKEND(CAP_FIREWIRE, "FIREWIRE", MODE_CAPTURE_ALL), |
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#endif |
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// GigE
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#ifdef HAVE_PVAPI |
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DECLARE_BACKEND(CAP_PVAPI, "PVAPI", MODE_CAPTURE_ALL), |
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#endif |
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#ifdef HAVE_XIMEA |
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DECLARE_BACKEND(CAP_XIAPI, "XIMEA", MODE_CAPTURE_ALL), |
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#endif |
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#ifdef HAVE_GIGE_API |
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DECLARE_BACKEND(CAP_GIGANETIX, "GIGANETIX", MODE_CAPTURE_ALL), |
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#endif |
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#ifdef HAVE_ARAVIS_API |
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DECLARE_BACKEND(CAP_ARAVIS, "ARAVIS", MODE_CAPTURE_ALL), |
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#endif |
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#ifdef HAVE_UNICAP |
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DECLARE_BACKEND(CAP_UNICAP, "UNICAP", MODE_CAPTURE_BY_FILENAME), |
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#endif |
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#ifdef HAVE_GPHOTO2 |
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DECLARE_BACKEND(CAP_GPHOTO2, "GPHOTO2", MODE_CAPTURE_ALL), |
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#endif |
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#ifdef HAVE_XINE |
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DECLARE_BACKEND(CAP_XINE, "XINE", MODE_CAPTURE_BY_FILENAME), |
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#endif |
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// dropped backends: MIL, TYZX, Android
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}; |
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bool sortByPriority(const VideoBackendInfo &lhs, const VideoBackendInfo &rhs) |
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{ |
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return lhs.priority > rhs.priority; |
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} |
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/** @brief Manages list of enabled backends
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*/ |
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class VideoBackendRegistry |
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{ |
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protected: |
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std::vector<VideoBackendInfo> enabledBackends; |
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VideoBackendRegistry() |
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{ |
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const int N = sizeof(builtin_backends)/sizeof(builtin_backends[0]); |
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enabledBackends.assign(builtin_backends, builtin_backends + N); |
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for (int i = 0; i < N; i++) |
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{ |
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VideoBackendInfo& info = enabledBackends[i]; |
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info.priority = 1000 - i * 10; |
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} |
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CV_LOG_DEBUG(NULL, "VIDEOIO: Builtin backends(" << N << "): " << dumpBackends()); |
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if (readPrioritySettings()) |
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{ |
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CV_LOG_INFO(NULL, "VIDEOIO: Updated backends priorities: " << dumpBackends()); |
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} |
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int enabled = 0; |
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for (int i = 0; i < N; i++) |
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{ |
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VideoBackendInfo& info = enabledBackends[enabled]; |
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if (enabled != i) |
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info = enabledBackends[i]; |
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size_t param_priority = utils::getConfigurationParameterSizeT(cv::format("OPENCV_VIDEOIO_PRIORITY_%s", info.name).c_str(), (size_t)info.priority); |
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CV_Assert(param_priority == (size_t)(int)param_priority); // overflow check
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if (param_priority > 0) |
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{ |
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info.priority = (int)param_priority; |
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enabled++; |
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} |
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else |
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{ |
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CV_LOG_INFO(NULL, "VIDEOIO: Disable backend: " << info.name); |
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} |
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} |
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enabledBackends.resize(enabled); |
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CV_LOG_DEBUG(NULL, "VIDEOIO: Available backends(" << enabled << "): " << dumpBackends()); |
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std::sort(enabledBackends.begin(), enabledBackends.end(), sortByPriority); |
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CV_LOG_INFO(NULL, "VIDEOIO: Enabled backends(" << enabled << ", sorted by priority): " << dumpBackends()); |
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} |
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static std::vector<std::string> tokenize_string(const std::string& input, char token) |
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{ |
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std::vector<std::string> result; |
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std::string::size_type prev_pos = 0, pos = 0; |
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while((pos = input.find(token, pos)) != std::string::npos) |
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{ |
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result.push_back(input.substr(prev_pos, pos-prev_pos)); |
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prev_pos = ++pos; |
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} |
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result.push_back(input.substr(prev_pos)); |
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return result; |
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} |
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bool readPrioritySettings() |
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{ |
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bool hasChanges = false; |
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cv::String prioritized_backends = utils::getConfigurationParameterString("OPENCV_VIDEOIO_PRIORITY_LIST", NULL); |
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if (prioritized_backends.empty()) |
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return hasChanges; |
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CV_LOG_INFO(NULL, "VIDEOIO: Configured priority list (OPENCV_VIDEOIO_PRIORITY_LIST): " << prioritized_backends); |
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const std::vector<std::string> names = tokenize_string(prioritized_backends, ','); |
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for (size_t i = 0; i < names.size(); i++) |
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{ |
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const std::string& name = names[i]; |
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bool found = false; |
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for (size_t k = 0; k < enabledBackends.size(); k++) |
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{ |
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VideoBackendInfo& info = enabledBackends[k]; |
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if (name == info.name) |
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{ |
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info.priority = (int)(100000 + (names.size() - i) * 1000); |
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CV_LOG_DEBUG(NULL, "VIDEOIO: New backend priority: '" << name << "' => " << info.priority); |
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found = true; |
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hasChanges = true; |
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break; |
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} |
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} |
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if (!found) |
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{ |
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CV_LOG_WARNING(NULL, "VIDEOIO: Can't prioritize unknown/unavailable backend: '" << name << "'"); |
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} |
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} |
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return hasChanges; |
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} |
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public: |
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std::string dumpBackends() const |
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{ |
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std::ostringstream os; |
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for (size_t i = 0; i < enabledBackends.size(); i++) |
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{ |
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if (i > 0) os << "; "; |
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const VideoBackendInfo& info = enabledBackends[i]; |
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os << info.name << '(' << info.priority << ')'; |
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} |
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return os.str(); |
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} |
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static VideoBackendRegistry& getInstance() |
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{ |
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static VideoBackendRegistry g_instance; |
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return g_instance; |
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} |
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inline std::vector<VideoBackendInfo> getAvailableBackends_CaptureByIndex() const |
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{ |
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std::vector<VideoBackendInfo> result; |
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for (size_t i = 0; i < enabledBackends.size(); i++) |
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{ |
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const VideoBackendInfo& info = enabledBackends[i]; |
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if (info.mode & MODE_CAPTURE_BY_INDEX) |
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result.push_back(info); |
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} |
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return result; |
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} |
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inline std::vector<VideoBackendInfo> getAvailableBackends_CaptureByFilename() const |
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{ |
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std::vector<VideoBackendInfo> result; |
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for (size_t i = 0; i < enabledBackends.size(); i++) |
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{ |
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const VideoBackendInfo& info = enabledBackends[i]; |
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if (info.mode & MODE_CAPTURE_BY_FILENAME) |
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result.push_back(info); |
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} |
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return result; |
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} |
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inline std::vector<VideoBackendInfo> getAvailableBackends_Writer() const |
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{ |
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std::vector<VideoBackendInfo> result; |
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for (size_t i = 0; i < enabledBackends.size(); i++) |
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{ |
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const VideoBackendInfo& info = enabledBackends[i]; |
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if (info.mode & MODE_WRITER) |
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result.push_back(info); |
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} |
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return result; |
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} |
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}; |
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} // namespace
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namespace videoio_registry { |
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std::vector<VideoBackendInfo> getAvailableBackends_CaptureByIndex() |
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{ |
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const std::vector<VideoBackendInfo> result = VideoBackendRegistry::getInstance().getAvailableBackends_CaptureByFilename(); |
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return result; |
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} |
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std::vector<VideoBackendInfo> getAvailableBackends_CaptureByFilename() |
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{ |
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const std::vector<VideoBackendInfo> result = VideoBackendRegistry::getInstance().getAvailableBackends_CaptureByFilename(); |
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return result; |
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} |
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std::vector<VideoBackendInfo> getAvailableBackends_Writer() |
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{ |
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const std::vector<VideoBackendInfo> result = VideoBackendRegistry::getInstance().getAvailableBackends_Writer(); |
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return result; |
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} |
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} // namespace registry
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#define TRY_OPEN(backend_func) \ |
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{ \
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try { \
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if (param_VIDEOIO_DEBUG || param_VIDEOCAPTURE_DEBUG) \
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CV_LOG_WARNING(NULL, cv::format("VIDEOIO(%s): trying ...\n", #backend_func)); \
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icap = backend_func; \
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if (param_VIDEOIO_DEBUG ||param_VIDEOCAPTURE_DEBUG) \
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CV_LOG_WARNING(NULL, cv::format("VIDEOIO(%s): result=%p isOpened=%d ...\n", \
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#backend_func, icap.empty() ? NULL : icap.get(), icap.empty() ? -1: icap->isOpened())); \ |
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} catch(const cv::Exception& e) { \
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CV_LOG_ERROR(NULL, cv::format("VIDEOIO(%s): raised OpenCV exception:\n\n%s\n", #backend_func, e.what())); \
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} catch (const std::exception& e) { \
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CV_LOG_ERROR(NULL, cv::format("VIDEOIO(%s): raised C++ exception:\n\n%s\n", #backend_func, e.what())); \
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} catch(...) { \
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CV_LOG_ERROR(NULL, cv::format("VIDEOIO(%s): raised unknown C++ exception!\n\n", #backend_func)); \
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} \
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break; \
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} |
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#define TRY_OPEN_LEGACY(backend_func) \ |
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{ \
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try { \
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if (param_VIDEOIO_DEBUG || param_VIDEOCAPTURE_DEBUG) \
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CV_LOG_WARNING(NULL, cv::format("VIDEOIO(%s): trying ...\n", #backend_func)); \
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capture = backend_func; \
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if (param_VIDEOIO_DEBUG || param_VIDEOCAPTURE_DEBUG) \
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CV_LOG_WARNING(NULL, cv::format("VIDEOIO(%s): result=%p ...\n", #backend_func, capture)); \
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} catch(const cv::Exception& e) { \
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CV_LOG_ERROR(NULL, cv::format("VIDEOIO(%s): raised OpenCV exception:\n\n%s\n", #backend_func, e.what())); \
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} catch (const std::exception& e) { \
|
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CV_LOG_ERROR(NULL, cv::format("VIDEOIO(%s): raised C++ exception:\n\n%s\n", #backend_func, e.what())); \
|
||||
} catch(...) { \
|
||||
CV_LOG_ERROR(NULL, cv::format("VIDEOIO(%s): raised unknown C++ exception!\n\n", #backend_func)); \
|
||||
} \
|
||||
break; \
|
||||
} |
||||
|
||||
|
||||
void VideoCapture_create(CvCapture*& capture, Ptr<IVideoCapture>& icap, VideoCaptureAPIs api, int index) |
||||
{ |
||||
CV_UNUSED(capture); CV_UNUSED(icap); |
||||
switch (api) |
||||
{ |
||||
default: |
||||
CV_LOG_WARNING(NULL, "VideoCapture(index=" << index << ") was built without support of requested backendID=" << (int)api); |
||||
break; |
||||
#ifdef HAVE_GSTREAMER |
||||
case CAP_GSTREAMER: |
||||
TRY_OPEN(createGStreamerCapture(index)); |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_MSMF |
||||
case CAP_MSMF: |
||||
TRY_OPEN(cvCreateCapture_MSMF(index)); |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_DSHOW |
||||
case CAP_DSHOW: |
||||
TRY_OPEN(makePtr<VideoCapture_DShow>(index)); |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_INTELPERC |
||||
case CAP_INTELPERC: |
||||
TRY_OPEN(makePtr<VideoCapture_IntelPerC>()); |
||||
break; |
||||
#endif |
||||
#ifdef WINRT_VIDEO |
||||
case CAP_WINRT: |
||||
TRY_OPEN(makePtr<cv::VideoCapture_WinRT>(index)); |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_GPHOTO2 |
||||
case CAP_GPHOTO2: |
||||
TRY_OPEN(createGPhoto2Capture(index)); |
||||
break; |
||||
#endif |
||||
case CAP_VFW: // or CAP_V4L or CAP_V4L2
|
||||
#ifdef HAVE_VFW |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_VFW(index)) |
||||
#endif |
||||
#if defined HAVE_LIBV4L || defined HAVE_CAMV4L || defined HAVE_CAMV4L2 || defined HAVE_VIDEOIO |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_V4L(index)) |
||||
#endif |
||||
break; |
||||
case CAP_FIREWIRE: |
||||
#ifdef HAVE_DC1394_2 |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_DC1394_2(index)) |
||||
#endif |
||||
#ifdef HAVE_DC1394 |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_DC1394(index)) |
||||
#endif |
||||
#ifdef HAVE_CMU1394 |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_CMU(index)) |
||||
#endif |
||||
break; // CAP_FIREWIRE
|
||||
#ifdef HAVE_MIL |
||||
case CAP_MIL: |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_MIL(index)) |
||||
break; |
||||
#endif |
||||
#if defined(HAVE_QUICKTIME) || defined(HAVE_QTKIT) |
||||
case CAP_QT: |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_QT(index)) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_UNICAP |
||||
case CAP_UNICAP: |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_Unicap(index)) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_PVAPI |
||||
case CAP_PVAPI: |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_PvAPI(index)) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_OPENNI |
||||
case CAP_OPENNI: |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_OpenNI(index)) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_OPENNI2 |
||||
case CAP_OPENNI2: |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_OpenNI2(index)) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_XIMEA |
||||
case CAP_XIAPI: |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_XIMEA(index)) |
||||
break; |
||||
#endif |
||||
|
||||
#ifdef HAVE_AVFOUNDATION |
||||
case CAP_AVFOUNDATION: |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_AVFoundation(index)) |
||||
break; |
||||
#endif |
||||
|
||||
#ifdef HAVE_GIGE_API |
||||
case CAP_GIGANETIX: |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_Giganetix(index)) |
||||
break; |
||||
#endif |
||||
|
||||
#ifdef HAVE_ARAVIS_API |
||||
case CAP_ARAVIS: |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_Aravis(index)) |
||||
break; |
||||
#endif |
||||
} // switch (api)
|
||||
} |
||||
|
||||
void VideoCapture_create(CvCapture*& capture, Ptr<IVideoCapture>& icap, VideoCaptureAPIs api, const cv::String& filename) |
||||
{ |
||||
switch (api) |
||||
{ |
||||
default: |
||||
CV_LOG_WARNING(NULL, "VideoCapture(filename=" << filename << ") was built without support of requested backendID=" << (int)api); |
||||
break; |
||||
#if defined HAVE_LIBV4L || defined HAVE_CAMV4L || defined HAVE_CAMV4L2 || defined HAVE_VIDEOIO |
||||
case CAP_V4L: |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_V4L(filename.c_str())) |
||||
break; |
||||
#endif |
||||
|
||||
#ifdef HAVE_VFW |
||||
case CAP_VFW: |
||||
TRY_OPEN_LEGACY(cvCreateFileCapture_VFW(filename.c_str())) |
||||
break; |
||||
#endif |
||||
|
||||
#if defined(HAVE_QUICKTIME) || defined(HAVE_QTKIT) |
||||
case CAP_QT: |
||||
TRY_OPEN_LEGACY(cvCreateFileCapture_QT(filename.c_str())) |
||||
break; |
||||
#endif |
||||
|
||||
#ifdef HAVE_AVFOUNDATION |
||||
case CAP_AVFOUNDATION: |
||||
TRY_OPEN_LEGACY(cvCreateFileCapture_AVFoundation(filename.c_str())) |
||||
break; |
||||
#endif |
||||
|
||||
#ifdef HAVE_OPENNI |
||||
case CAP_OPENNI: |
||||
TRY_OPEN_LEGACY(cvCreateFileCapture_OpenNI(filename.c_str())) |
||||
break; |
||||
#endif |
||||
|
||||
#ifdef HAVE_OPENNI2 |
||||
case CAP_OPENNI2: |
||||
TRY_OPEN_LEGACY(cvCreateFileCapture_OpenNI2(filename.c_str())) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_XIMEA |
||||
case CAP_XIAPI: |
||||
TRY_OPEN_LEGACY(cvCreateCameraCapture_XIMEA(filename.c_str())) |
||||
break; |
||||
#endif |
||||
case CAP_IMAGES: |
||||
TRY_OPEN_LEGACY(cvCreateFileCapture_Images(filename.c_str())) |
||||
break; |
||||
#ifdef HAVE_FFMPEG |
||||
case CAP_FFMPEG: |
||||
TRY_OPEN(cvCreateFileCapture_FFMPEG_proxy(filename)) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_GSTREAMER |
||||
case CAP_GSTREAMER: |
||||
TRY_OPEN(createGStreamerCapture(filename)) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_XINE |
||||
case CAP_XINE: |
||||
TRY_OPEN(createXINECapture(filename.c_str())) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_MSMF |
||||
case CAP_MSMF: |
||||
TRY_OPEN(cvCreateCapture_MSMF(filename)) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_GPHOTO2 |
||||
case CAP_GPHOTO2: |
||||
TRY_OPEN(createGPhoto2Capture(filename)) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_MFX |
||||
case CAP_INTEL_MFX: |
||||
TRY_OPEN(makePtr<VideoCapture_IntelMFX>(filename)) |
||||
break; |
||||
#endif |
||||
case CAP_OPENCV_MJPEG: |
||||
TRY_OPEN(createMotionJpegCapture(filename)) |
||||
break; |
||||
} // switch
|
||||
} |
||||
|
||||
|
||||
void VideoWriter_create(CvVideoWriter*& writer, Ptr<IVideoWriter>& iwriter, VideoCaptureAPIs api, |
||||
const String& filename, int fourcc, double fps, const Size& frameSize, bool isColor) |
||||
{ |
||||
#define CREATE_WRITER(backend_func) \ |
||||
{ \
|
||||
try { \
|
||||
if (param_VIDEOIO_DEBUG || param_VIDEOWRITER_DEBUG) \
|
||||
CV_LOG_WARNING(NULL, cv::format("VIDEOIO(%s): trying ...\n", #backend_func)); \
|
||||
iwriter = backend_func; \
|
||||
if (param_VIDEOIO_DEBUG || param_VIDEOWRITER_DEBUG) \
|
||||
CV_LOG_WARNING(NULL, cv::format("VIDEOIO(%s): result=%p isOpened=%d...\n", #backend_func, iwriter.empty() ? NULL : iwriter.get(), iwriter.empty() ? iwriter->isOpened() : -1)); \
|
||||
} catch(const cv::Exception& e) { \
|
||||
CV_LOG_ERROR(NULL, cv::format("VIDEOIO(%s): raised OpenCV exception:\n\n%s\n", #backend_func, e.what())); \
|
||||
} catch (const std::exception& e) { \
|
||||
CV_LOG_ERROR(NULL, cv::format("VIDEOIO(%s): raised C++ exception:\n\n%s\n", #backend_func, e.what())); \
|
||||
} catch(...) { \
|
||||
CV_LOG_ERROR(NULL, cv::format("VIDEOIO(%s): raised unknown C++ exception!\n\n", #backend_func)); \
|
||||
} \
|
||||
break; \
|
||||
} |
||||
|
||||
#define CREATE_WRITER_LEGACY(backend_func) \ |
||||
{ \
|
||||
try { \
|
||||
if (param_VIDEOIO_DEBUG || param_VIDEOWRITER_DEBUG) \
|
||||
CV_LOG_WARNING(NULL, cv::format("VIDEOIO(%s): trying ...\n", #backend_func)); \
|
||||
writer = backend_func; \
|
||||
if (param_VIDEOIO_DEBUG || param_VIDEOWRITER_DEBUG) \
|
||||
CV_LOG_WARNING(NULL, cv::format("VIDEOIO(%s): result=%p...\n", #backend_func, writer)); \
|
||||
} catch(const cv::Exception& e) { \
|
||||
CV_LOG_ERROR(NULL, cv::format("VIDEOIO(%s): raised OpenCV exception:\n\n%s\n", #backend_func, e.what())); \
|
||||
} catch (const std::exception& e) { \
|
||||
CV_LOG_ERROR(NULL, cv::format("VIDEOIO(%s): raised C++ exception:\n\n%s\n", #backend_func, e.what())); \
|
||||
} catch(...) { \
|
||||
CV_LOG_ERROR(NULL, cv::format("VIDEOIO(%s): raised unknown C++ exception!\n\n", #backend_func)); \
|
||||
} \
|
||||
break; \
|
||||
} |
||||
|
||||
switch (api) |
||||
{ |
||||
default: |
||||
CV_LOG_ERROR(NULL, "Unknown VideoWriter backend (check getBuildInformation()): " << (int)api); |
||||
break; |
||||
#ifdef HAVE_FFMPEG |
||||
case CAP_FFMPEG: |
||||
CREATE_WRITER(cvCreateVideoWriter_FFMPEG_proxy(filename, fourcc, fps, frameSize, isColor)); |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_MSMF |
||||
case CAP_MSMF: |
||||
CREATE_WRITER(cvCreateVideoWriter_MSMF(filename, fourcc, fps, frameSize, isColor)); |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_MFX |
||||
case CAP_INTEL_MFX: |
||||
CREATE_WRITER(VideoWriter_IntelMFX::create(filename, fourcc, fps, frameSize, isColor)); |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_VFW |
||||
case CAP_VFW: |
||||
CREATE_WRITER_LEGACY(cvCreateVideoWriter_VFW(filename.c_str(), fourcc, fps, frameSize, isColor)) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_AVFOUNDATION |
||||
case CAP_AVFOUNDATION: |
||||
CREATE_WRITER_LEGACY(cvCreateVideoWriter_AVFoundation(filename.c_str(), fourcc, fps, frameSize, isColor)) |
||||
break; |
||||
#endif |
||||
#if defined(HAVE_QUICKTIME) || defined(HAVE_QTKIT) |
||||
case(CAP_QT): |
||||
CREATE_WRITER_LEGACY(cvCreateVideoWriter_QT(filename.c_str(), fourcc, fps, frameSize, isColor)) |
||||
break; |
||||
#endif |
||||
#ifdef HAVE_GSTREAMER |
||||
case CAP_GSTREAMER: |
||||
CREATE_WRITER_LEGACY(cvCreateVideoWriter_GStreamer (filename.c_str(), fourcc, fps, frameSize, isColor)) |
||||
break; |
||||
#endif |
||||
case CAP_OPENCV_MJPEG: |
||||
CREATE_WRITER(createMotionJpegWriter(filename, fourcc, fps, frameSize, isColor)); |
||||
break; |
||||
case CAP_IMAGES: |
||||
if(!fourcc || !fps) |
||||
{ |
||||
CREATE_WRITER_LEGACY(cvCreateVideoWriter_Images(filename.c_str())); |
||||
} |
||||
break; |
||||
} // switch(api)
|
||||
} |
||||
|
||||
|
||||
} // namespace
|
||||
@ -0,0 +1,43 @@ |
||||
// This file is part of OpenCV project.
|
||||
// It is subject to the license terms in the LICENSE file found in the top-level directory
|
||||
// of this distribution and at http://opencv.org/license.html.
|
||||
|
||||
#ifndef __OPENCV_VIDEOIO_VIDEOIO_REGISTRY_HPP__ |
||||
#define __OPENCV_VIDEOIO_VIDEOIO_REGISTRY_HPP__ |
||||
|
||||
namespace cv |
||||
{ |
||||
|
||||
/** Capabilities bitmask */ |
||||
enum BackendMode { |
||||
MODE_CAPTURE_BY_INDEX = 1 << 0, //!< device index
|
||||
MODE_CAPTURE_BY_FILENAME = 1 << 1, //!< filename or device path (v4l2)
|
||||
MODE_WRITER = 1 << 4, //!< writer
|
||||
|
||||
MODE_CAPTURE_ALL = MODE_CAPTURE_BY_INDEX + MODE_CAPTURE_BY_FILENAME, |
||||
}; |
||||
|
||||
struct VideoBackendInfo { |
||||
VideoCaptureAPIs id; |
||||
BackendMode mode; |
||||
int priority; // 1000-<index*10> - default builtin priority
|
||||
// 0 - disabled (OPENCV_VIDEOIO_PRIORITY_<name> = 0)
|
||||
// >10000 - prioritized list (OPENCV_VIDEOIO_PRIORITY_LIST)
|
||||
const char* name; |
||||
}; |
||||
|
||||
namespace videoio_registry { |
||||
|
||||
std::vector<VideoBackendInfo> getAvailableBackends_CaptureByIndex(); |
||||
std::vector<VideoBackendInfo> getAvailableBackends_CaptureByFilename(); |
||||
std::vector<VideoBackendInfo> getAvailableBackends_Writer(); |
||||
|
||||
} // namespace
|
||||
|
||||
void VideoCapture_create(CvCapture*& capture, Ptr<IVideoCapture>& icap, VideoCaptureAPIs api, int index); |
||||
void VideoCapture_create(CvCapture*& capture, Ptr<IVideoCapture>& icap, VideoCaptureAPIs api, const cv::String& filename); |
||||
void VideoWriter_create(CvVideoWriter*& writer, Ptr<IVideoWriter>& iwriter, VideoCaptureAPIs api, |
||||
const String& filename, int fourcc, double fps, const Size& frameSize, bool isColor); |
||||
|
||||
} // namespace
|
||||
#endif // __OPENCV_VIDEOIO_VIDEOIO_REGISTRY_HPP__
|
||||
Loading…
Reference in new issue