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OpenCV
4.1.2
Open Source Computer Vision
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Functions | |
| cv::String | cv::videoio_registry::getBackendName (VideoCaptureAPIs api) |
| Returns backend API name or "UnknownVideoAPI(xxx)". More... | |
| std::vector< VideoCaptureAPIs > | cv::videoio_registry::getBackends () |
| Returns list of all available backends. More... | |
| std::vector< VideoCaptureAPIs > | cv::videoio_registry::getCameraBackends () |
Returns list of available backends which works via cv::VideoCapture(int index) More... | |
| std::vector< VideoCaptureAPIs > | cv::videoio_registry::getStreamBackends () |
Returns list of available backends which works via cv::VideoCapture(filename) More... | |
| std::vector< VideoCaptureAPIs > | cv::videoio_registry::getWriterBackends () |
Returns list of available backends which works via cv::VideoWriter() More... | |
| bool | cv::videoio_registry::hasBackend (VideoCaptureAPIs api) |
| Returns true if backend is available. More... | |
This section contains API description how to query/configure available Video I/O backends.
Runtime configuration options:
OPENCV_VIDEOIO_DEBUG=1OPENCV_VIDEOIO_PRIORITY_<backend>=9999OPENCV_VIDEOIO_PRIORITY_<backend>=0OPENCV_VIDEOIO_PRIORITY_LIST=FFMPEG,GSTREAMER | cv::String cv::videoio_registry::getBackendName | ( | VideoCaptureAPIs | api | ) |
#include <opencv2/videoio/registry.hpp>
Returns backend API name or "UnknownVideoAPI(xxx)".
| api | backend ID (VideoCaptureAPIs) |
| std::vector<VideoCaptureAPIs> cv::videoio_registry::getBackends | ( | ) |
#include <opencv2/videoio/registry.hpp>
Returns list of all available backends.
| std::vector<VideoCaptureAPIs> cv::videoio_registry::getCameraBackends | ( | ) |
#include <opencv2/videoio/registry.hpp>
Returns list of available backends which works via cv::VideoCapture(int index)
| std::vector<VideoCaptureAPIs> cv::videoio_registry::getStreamBackends | ( | ) |
#include <opencv2/videoio/registry.hpp>
Returns list of available backends which works via cv::VideoCapture(filename)
| std::vector<VideoCaptureAPIs> cv::videoio_registry::getWriterBackends | ( | ) |
#include <opencv2/videoio/registry.hpp>
Returns list of available backends which works via cv::VideoWriter()
| bool cv::videoio_registry::hasBackend | ( | VideoCaptureAPIs | api | ) |
#include <opencv2/videoio/registry.hpp>
Returns true if backend is available.
1.8.9.1