最終更新:2020-05-11 (月) 13:20:52 (1439d)
cv::VideoCapture/バックエンド
Top / cv::VideoCapture / バックエンド
OpenCV/バックエンドの指定
cap.open(deviceID + apiID);
指定しない場合 (Windows,prebuilt)
プライオリティ
1000-<index*10> default builtin priority 0 disabled (OPENCV_VIDEOIO_PRIORITY_<name> = 0) >10000 prioritized list (OPENCV_VIDEOIO_PRIORITY_LIST)
OpenCV 4.1.0
- MSMF
[DEBUG:0] VIDEOIO: Builtin backends(6): FFMPEG(1000); GSTREAMER(990); MSMF(980); DSHOW(970); CV_IMAGES(960); CV_MJPEG(950) [DEBUG:0] VIDEOIO: Available backends(6): FFMPEG(1000); GSTREAMER(990); MSMF(980); DSHOW(970); CV_IMAGES(960); CV_MJPEG(950) [ INFO:0] VIDEOIO: Enabled backends(6, sorted by priority): FFMPEG(1000); GSTREAMER(990); MSMF(980); DSHOW(970); CV_IMAGES(960); CV_MJPEG(950) [ INFO:0] VideoIO pluigin (GSTREAMER): glob is 'opencv_videoio_gstreamer*.dll', 1 location(s) [ INFO:0] Found 0 plugin(s) for GSTREAMER
WITH_FFMPEG cv::CAP_FFMPEG CV_CAP_FFMPEG 1900 Open and record video file or stream using the FFMPEG library OpenCV 3.1～ WITH_GSTREAMER cv::CAP_GSTREAMER? CV_CAP_GSTREAMER? 1800 GStreamer OpenCV 3.1～ WITH_MSMF cv::CAP_MSMF CV_CAP_MSMF 1400 Microsoft Media Foundation (via videoInput) WITH_DSHOW cv::CAP_DSHOW CV_CAP_DSHOW 700 DirectShow (via videoInput) cv::CAP_IMAGES CV_CAP_IMAGES? 2000 OpenCV Image Sequence (e.g. img_%02d.jpg) OpenCV 3.1～ cv::CAP_OPENCV_MJPEG? 2200 Built-in OpenCV MotionJPEG codec OpenCV 3.3～
OpenCV 3.4.3
- MSMF
[DEBUG:0] VIDEOIO: Builtin backends(6): FFMPEG(1000); MSMF(990); DSHOW(980); VFW(970); CV_IMAGES(960); CV_MJPEG(950) [DEBUG:0] VIDEOIO: Available backends(6): FFMPEG(1000); MSMF(990); DSHOW(980); VFW(970); CV_IMAGES(960); CV_MJPEG(950) [ INFO:0] VIDEOIO: Enabled backends(6, sorted by priority): FFMPEG(1000); MSMF(990); DSHOW(980); VFW(970); CV_IMAGES(960); CV_MJPEG(950)
WITH_FFMPEG cv::CAP_FFMPEG CV_CAP_FFMPEG 1900 Open and record video file or stream using the FFMPEG library OpenCV 3.1～ WITH_MSMF cv::CAP_MSMF CV_CAP_MSMF 1400 Microsoft Media Foundation (via videoInput) WITH_DSHOW cv::CAP_DSHOW CV_CAP_DSHOW 700 DirectShow (via videoInput) WITH_VFW cv::CAP_VFW CV_CAP_VFW 200 Video for Windows (via videoInput) cv::CAP_IMAGES CV_CAP_IMAGES? 2000 OpenCV Image Sequence (e.g. img_%02d.jpg) OpenCV 3.1～ cv::CAP_OPENCV_MJPEG? 2200 Built-in OpenCV MotionJPEG codec OpenCV 3.3～
