A C# implementation of the RTSP to WebRTC gateway that allows you to stream RTSP from various sources to the web browser. It is implemented in netstandard2.0 without any native dependencies. Supports H264 and H265 re-streaming (H265 in WebRTC is only available in Safari). Audio transcoding from AAC to Opus is also supported.
You have to use Safari web browser on Mac OS and enable the experimental h265 WebRTC support in feature flags. Then it will work, so I believe the condition is correct.