Add comparison between related frameworks to website
If I were to search "GStreamer alternatives", I get the following pages:
- https://stackshare.io/gstreamer - suggests the likes of OpenCV, FFmpeg, etc
- https://cpp.libhunt.com/gstreamer-alternatives - suggests media players, etc on Github
For a newcomer, this can be misleading, because each framework, GStreamer, FFmpeg, OpenCV, media players focus on a different use case. It would be nice if such a comparison between related frameworks could be put up on the GStreamer website