// 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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#ifndef OPENCV_VIDEOIO_REGISTRY_HPP
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#define OPENCV_VIDEOIO_REGISTRY_HPP
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#include <opencv2/videoio.hpp>
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namespace cv { namespace videoio_registry {
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/** @addtogroup videoio_registry
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This section contains API description how to query/configure available Video I/O backends.
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Runtime configuration options:
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- enable debug mode: `OPENCV_VIDEOIO_DEBUG=1`
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- change backend priority: `OPENCV_VIDEOIO_PRIORITY_<backend>=9999`
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- disable backend: `OPENCV_VIDEOIO_PRIORITY_<backend>=0`
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- specify list of backends with high priority (>100000): `OPENCV_VIDEOIO_PRIORITY_LIST=XXMPEG,GSTREAMER`
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@{
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*/
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/** @brief Returns backend API name or "UnknownVideoAPI(xxx)"
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@param api backend ID (#VideoCaptureAPIs)
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*/
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CV_EXPORTS_W cv::String getBackendName(VideoCaptureAPIs api);
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/** @brief Returns list of all available backends */
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CV_EXPORTS_W std::vector<VideoCaptureAPIs> getBackends();
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/** @brief Returns list of available backends which works via `cv::VideoCapture(int index)` */
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CV_EXPORTS_W std::vector<VideoCaptureAPIs> getCameraBackends();
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/** @brief Returns list of available backends which works via `cv::VideoCapture(filename)` */
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CV_EXPORTS_W std::vector<VideoCaptureAPIs> getStreamBackends();
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/** @brief Returns list of available backends which works via `cv::VideoWriter()` */
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CV_EXPORTS_W std::vector<VideoCaptureAPIs> getWriterBackends();
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/** @brief Returns true if backend is available */
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CV_EXPORTS bool hasBackend(VideoCaptureAPIs api);
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//! @}
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}} // namespace
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#endif // OPENCV_VIDEOIO_REGISTRY_HPP
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