GStreamer is described as 'Library for constructing graphs of media-handling components. The applications it supports range from simple Ogg/Vorbis playback, audio/video streaming to complex audio (mixing) and video (non-linear editing) processing' and is an app in the video & movies category. There are more than 10 alternatives to GStreamer for a variety of platforms, including Windows, Mac, Linux, BSD and Self-Hosted apps. The best GStreamer alternative is FFmpeg, which is both free and Open Source. Other great apps like GStreamer are PipeWire, Adobe Media Encoder, NewPlayer and ACDSee Video Converter.
PipeWire is a seamless drop-in replacement for GStreamer. PipeWire is also able to handle ALSA, JACK and PulseAudio applications at the same time.