I'm using Visual Studio 2022 with VCPKG to create an application which captures video from RaspberryPi streamed via UDP with GStreamer. I updated vcpkg/ports/gstreamer/portfile.cmake and added:
-Dgst-plugins-good:udp=enabled under vcpkg_configure_meson. After that, installed opencv4 with gstreamer, so vcpkh list looks like that:
gstreamer:x64-windows 1.19.2#9 GStreamer open-source multimedia framework core ...
gstreamer[flac]:x64-windows FLAC audio codec plugin
gstreamer[gl-graphene]:x64-windows Use Graphene in OpenGL plugin
gstreamer[plugins-base]:x64-windows 'Base' GStreamer plugins and helper libraries
gstreamer[plugins-good]:x64-windows 'Good' GStreamer plugins and helper libraries
gstreamer[plugins-ugly]:x64-windows 'Ugly' GStreamer plugins and helper libraries
gstreamer[rawparse]:x64-windows Build with libraw support
gstreamer[x264]:x64-windows Colon separated list of additional x264 library ...
opencv4:x64-windows 4.6.0#5 computer vision library
opencv4[default-features]:x64-windows Platform-dependent default features
opencv4[dnn]:x64-windows Enable dnn module
opencv4[gstreamer]:x64-windows gstreamer support for opencv
opencv4[jpeg]:x64-windows JPEG support for opencv
opencv4[png]:x64-windows PNG support for opencv
opencv4[quirc]:x64-windows Enable QR code module
opencv4[tiff]:x64-windows TIFF support for opencv
opencv4[webp]:x64-windows WebP support for opencv
However, even with that gstudp.dll is not copied anywhere, and if I copy it manually to /x64/Debug and run my app, I got:
[ WARN:[email protected]] global D:\C++Libs\vcpkg\buildtrees\opencv4\src\4.6.0-e24d1d7a25.clean\modules\videoio\src\cap_gstreamer.cpp (1127) cv::GStreamerCapture::open OpenCV | GStreamer warning: Error opening bin: no element "udpsrc"
[ WARN:[email protected]] global D:\C++Libs\vcpkg\buildtrees\opencv4\src\4.6.0-e24d1d7a25.clean\modules\videoio\src\cap_gstreamer.cpp (862) cv::GStreamerCapture::isPipelinePlaying OpenCV | GStreamer warning: GStreamer: pipeline have not been created
Failed to open camera.
What am I doing wrong to use OpenCV/GStreamer via UDP with vcpkg?