[tcp @ 0x2261180] Connection to tcp://192.168.15.11:554?timeout=0 failed: No route to host
(joinus_test:7689): GStreamer-CRITICAL **:
Trying to dispose element appsink0, but it is in READY instead of the NULL state.
You need to explicitly set elements to the NULL state before
dropping the final reference, to allow them to clean up.
This problem may also be caused by a refcounting bug in the
application or some element.
(joinus_test:7689): GStreamer-CRITICAL **:
Trying to dispose element ffmpegcsp0, but it is in PLAYING instead of the NULL state.
You need to explicitly set elements to the NULL state before
dropping the final reference, to allow them to clean up.
This problem may also be caused by a refcounting bug in the
application or some element.
(joinus_test:7689): GStreamer-CRITICAL **:
Trying to dispose element uridecodebin0, but it is in PLAYING instead of the NULL state.
You need to explicitly set elements to the NULL state before
dropping the final reference, to allow them to clean up.
This problem may also be caused by a refcounting bug in the
application or some element.
(joinus_test:7689): GStreamer-CRITICAL **:
Trying to dispose element pipeline0, but it is in PAUSED instead of the NULL state.
You need to explicitly set elements to the NULL state before
dropping the final reference, to allow them to clean up.
This problem may also be caused by a refcounting bug in the
application or some element.
OpenCV Error: Unspecified error (GStreamer: unable to start pipeline
) in cvCaptureFromCAM_GStreamer, file /home/cui/arcsoft/opencv/install/opencv-3.2.0/modules/videoio/src/cap_gstreamer.cpp, line 832
(joinus_test:7689): GStreamer-CRITICAL **: gst_element_post_message: assertion 'GST_IS_ELEMENT (element)' failed
VIDEOIO(cvCreateCapture_GStreamer (CV_CAP_GSTREAMER_FILE, filename)): raised OpenCV exception:
/home/cui/arcsoft/opencv/install/opencv-3.2.0/modules/videoio/src/cap_gstreamer.cpp:832: error: (-2) GStreamer: unable to start pipeline
in function cvCaptureFromCAM_GStreamer
GStreamer Plugin: Embedded video playback halted; module v4l2src0 reported: Cannot identify device '/dev/video0'.
OpenCV Error: Unspecified error (GStreamer: unable to start pipeline
) in cvCaptureFromCAM_GStreamer, file /home/cui/arcsoft/opencv/install/opencv-3.2.0/modules/videoio/src/cap_gstreamer.cpp, line 832
VIDEOIO(cvCreateCapture_GStreamer(CV_CAP_GSTREAMER_V4L2, reinterpret_cast<char *>(index))): raised OpenCV exception:
/home/cui/arcsoft/opencv/install/opencv-3.2.0/modules/videoio/src/cap_gstreamer.cpp:832: error: (-2) GStreamer: unable to start pipeline
in function cvCaptureFromCAM_GStreamer
出现这个错误，请先用IE浏览器查看摄像头是否正常；
