smelter

Smelter is a toolkit for real-time, low-latency, programmable video and audio composition, developed by Software Mansion. According to the README, it lets users combine multimedia from different sources into a single video or live stream, enrich content with text, custom shaders and embedded websites, and do so with ready-to-use React components. Key capabilities described in the README: - Mixing and composing video and audio in real time with low latency - Combining multiple multimedia sources into one output video or live stream - Adding overlays such as text, custom shaders and embedded web content - A TypeScript/React SDK with ready-to-use components, plus guides and a quick-start Documentation is hosted at smelter.dev/docs, and the project has a Discord community. The repository also contains gpu-video, described as an open-source hardware video coding library, in a subfolder of the same repository. Software Mansion is presented as a software agency active since 2012, with experience in web and mobile apps and multimedia solutions, and as a core React Native contributor. The README notes expertise in live streaming and broadcasting technologies and offers contact for project work. The README does not provide benchmarks, performance numbers, license details, or platform requirements beyond the above.