GStreamer

A high-performance, pipeline-based multimedia framework for building complex audio and video processing workflows.

GStreamer is the industry standard for cross-platform media handling, powering everything from embedded Linux devices to massive cloud transcoding clusters. It uses a plugin-based architecture (over 250 modules) to link elements like filesrc, decodebin, and autovideosink into a cohesive data pipeline. Whether you are implementing low-latency WebRTC streaming, hardware-accelerated H.264 encoding on NVIDIA GPUs, or synchronized multi-room audio, GStreamer provides the C-based core and language bindings (Python, Rust, Go) to move buffers efficiently.

https://gstreamer.freedesktop.org