ALVR is a wireless virtual reality streaming tool and headset driver that transmits content from a PC to a headset over Wi-Fi to eliminate physical cables. It functions as a session orchestrator that manages a network-based pipeline for high-resolution frames and a virtual driver layer that enables a computer to communicate with and track wireless hardware.
The system utilizes a UDP network protocol to synchronize compressed video frames and positional tracking data. It employs hardware-accelerated H.264 encoding to minimize lag and includes a virtual audio router to redirect microphone input and system audio between the host PC and the remote headset.
The project covers PC VR integration, including the ability to run concurrent drivers and synchronize software versions between connected devices. It also provides capabilities for managing video encoding and automating application launches.