无法使用 openccv 打开视频文件

troy 发表于 2019-2-26 17:24
sudo dnf clean all
sudo dnf update
sudo dnf install gstreamer-rockchip

安装完 还是无法解析视频文件

Failed to query video capabilities: Inappropriate ioctl for device
libv4l2: error getting capabilities: Inappropriate ioctl for device
VIDEOIO ERROR: V4L: device test1.mp4: Unable to query number of channels
mpi: mpp version: Without VCS info
mpp_rt: NOT found ion allocator
mpp_rt: found drm allocator
mpp: deprecated block control, use timeout control instead
OpenCV(3.4.1) Error: Unspecified error (GStreamer: your gstreamer installation is missing a required plugin
) in handlemessage, file /builddir/build/BUILD/opencv-3.4.1/modules/videoio/src/cap_gstreamer.cpp, line 1869
VIDEOIO(cvCreateCapture_GStreamer (CV_CAP_GSTREAMER_FILE, filename)): raised OpenCV exception:

OpenCV(3.4.1) /builddir/build/BUILD/opencv-3.4.1/modules/videoio/src/cap_gstreamer.cpp:1869: error: (-2) GStreamer: your gstreamer installation is missing a required plugin