GStreamer warning: Error opening file

[Alon__Alon]

Dear Shubha,

When I run my python script I get this error:

[ WARN:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/cap_gstreamer.cpp (701) open OpenCV | GStreamer warning: Error opening file: splits/myfile.mp4 (
[ WARN:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/cap_gstreamer.cpp (480) isPipelinePlaying OpenCV | GStreamer warning: GStreamer: pipeline have not been created
libva info: VA-API version 1.4.1
libva info: va_getDriverName() returns -1
libva info: User requested driver 'iHD'
libva info: Trying to open /opt/intel/mediasdk/lib64/iHD_drv_video.so
libva info: va_openDriver() returns -1
MFX: Can't initialize session
VIDIOC_REQBUFS: Inappropriate ioctl for device
 

I use 19.04 linux version, Do you know how can I resolve this?

[Shubha_R_Intel]

Dear Alon, Alon,

Hmmm. Well, technically Ubuntu 19.04 is not supported. But that said, I'm sure you can get OpenVino working on 19.04, maybe fix a few glitches.  Did you run setupvars.sh ? What Python script did you run to get this error ?

Thanks,

Shubha

[Alon__Alon]

I run setupvars.sh and get the output [setupvars.sh] OpenVINO environment initialized.

the Python script did I run is object_detection_demo_yolov3_async.py

in https://github.com/opencv/open_model_zoo/blob/master/demos/python_demos/object_detection_demo_yolov3_async/object_detection_demo_yolov3_async.py

[Maksim_S_Intel]

• Try to use full path to the file.
• Try to set environment variables 'OPENCV_VIDEOIO_DEBUG=1' and 'OPENCV_LOG_LEVEL=v' and check verbose output.
• Try to install 'good' and 'bad' plugin packages for GStreamer (gstreamer1.0-plugins-good, gstreamer1.0-plugins-bad).
• Try to install FFmpeg.

[tsvetkov__aleksander]

I have the same error

It can't uses ffmpeg  and try gstreamer

[sanek@localhost build]$ ./intel64/Release/face_detection_tutorial -i ../../data/face.jpg InferenceEngine: API version ............ 2.1 Build .................. custom_releases/2019/R3_ac8584cb714a697a12f1f30b7a3b78a5b9ac5e05 Description ....... API [ INFO ] Parsing input parameters [ INFO ] Reading input [ INFO:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/videoio_registry.cpp (187) VideoBackendRegistry VIDEOIO: Enabled backends(6, sorted by priority): FFMPEG(1000); GSTREAMER(990); INTEL_MFX(980); V4L2(970); CV_IMAGES(960); CV_MJPEG(950) [ WARN:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/cap.cpp (92) open VIDEOIO(FFMPEG): trying capture filename='../../data/face.jpg' ... [ INFO:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/backend_plugin.cpp (329) getPluginCandidates VideoIO pluigin (FFMPEG): glob is 'libopencv_videoio_ffmpeg*.so', 1 location(s) [ INFO:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/backend_plugin.cpp (336) getPluginCandidates - /opt/intel/openvino_2019.3.376/opencv/lib: 1 [ INFO:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/backend_plugin.cpp (340) getPluginCandidates Found 1 plugin(s) for FFMPEG [ INFO:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/backend_plugin.cpp (172) libraryLoad load /opt/intel/openvino_2019.3.376/opencv/lib/libopencv_videoio_ffmpeg.so => FAILED [ WARN:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/cap.cpp (128) open VIDEOIO(FFMPEG): backend is not available (plugin is missing, or can't be loaded due dependencies or it is not compatible) [ WARN:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/cap.cpp (92) open VIDEOIO(GSTREAMER): trying capture filename='../../data/face.jpg' ... [ INFO:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/backend_plugin.cpp (329) getPluginCandidates VideoIO pluigin (GSTREAMER): glob is 'libopencv_videoio_gstreamer*.so', 1 location(s) [ INFO:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/backend_plugin.cpp (336) getPluginCandidates - /opt/intel/openvino_2019.3.376/opencv/lib: 1 [ INFO:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/backend_plugin.cpp (340) getPluginCandidates Found 1 plugin(s) for GSTREAMER [ INFO:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/backend_plugin.cpp (172) libraryLoad load /opt/intel/openvino_2019.3.376/opencv/lib/libopencv_videoio_gstreamer.so => OK [ INFO:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/backend_plugin.cpp (220) PluginBackend Video I/O: loaded plugin 'GStreamer OpenCV Video I/O plugin' [ WARN:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/cap_gstreamer.cpp (480) isPipelinePlaying OpenCV | GStreamer warning: GStreamer: pipeline have not been created [ WARN:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/cap.cpp (112) open VIDEOIO(GSTREAMER): can't create capture [ WARN:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/cap.cpp (92) open VIDEOIO(INTEL_MFX): trying capture filename='../../data/face.jpg' ... [ INFO:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/backend_plugin.cpp (329) getPluginCandidates VideoIO pluigin (INTEL_MFX): glob is 'libopencv_videoio_intel_mfx*.so', 1 location(s) [ INFO:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/backend_plugin.cpp (336) getPluginCandidates - /opt/intel/openvino_2019.3.376/opencv/lib: 1 [ INFO:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/backend_plugin.cpp (340) getPluginCandidates Found 1 plugin(s) for INTEL_MFX [ INFO:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/backend_plugin.cpp (172) libraryLoad load /opt/intel/openvino_2019.3.376/opencv/lib/libopencv_videoio_intel_mfx.so => OK [ INFO:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/backend_plugin.cpp (220) PluginBackend Video I/O: loaded plugin 'MediaSDK OpenCV Video I/O plugin' libva info: VA-API version 1.4.1 libva info: va_getDriverName() returns 0 libva info: User requested driver 'iHD' libva info: Trying to open /opt/intel/mediasdk/lib64/iHD_drv_video.so libva info: Found init function __vaDriverInit_1_4 libva info: va_openDriver() returns 0 MFX: Unsupported extension: ../../data/face.jpg [ WARN:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/cap.cpp (112) open VIDEOIO(INTEL_MFX): can't create capture [ WARN:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/cap.cpp (92) open VIDEOIO(V4L2): trying capture filename='../../data/face.jpg' ... VIDIOC_REQBUFS: Inappropriate ioctl for device [ WARN:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/cap.cpp (112) open VIDEOIO(V4L2): can't create capture [ WARN:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/cap.cpp (92) open VIDEOIO(CV_IMAGES): trying capture filename='../../data/face.jpg' ... [ERROR:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/cap.cpp (116) open VIDEOIO(CV_IMAGES): raised OpenCV exception: OpenCV(4.1.2-openvino) /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/cap_images.cpp:253: error: (-5:Bad argument) CAP_IMAGES: can't find starting number (in the name of file): ../../data/face.jpg in function 'icvExtractPattern' [ WARN:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/cap.cpp (92) open VIDEOIO(CV_MJPEG): trying capture filename='../../data/face.jpg' ... [ WARN:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/cap.cpp (112) open VIDEOIO(CV_MJPEG): can't create capture [ ERROR ] Cannot open input file or camera: ../../data/face.jpg [ INFO:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/backend_plugin.cpp (178) libraryRelease unload /opt/intel/openvino_2019.3.376/opencv/lib/libopencv_videoio_intel_mfx.so [ INFO:0] global /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/videoio/src/backend_plugin.cpp (178) libraryRelease unload /opt/intel/openvino_2019.3.376/opencv/lib/libopencv_videoio_gstreamer.so