cang

cang is a lightweight NVR (network video recorder) that watches camera recording folders, transcodes footage to H.264/MP4, and serves it through a FastAPI web UI.

Features

• Dahua camera adapter — reads .dav footage directly from the camera's folder structure
• Watchdog-based file monitoring — picks up new recordings without polling
• ffmpeg transcoding pipeline — re-encodes .dav to H.264/MP4 with faststart
• FastAPI web UI — browse recordings by day with thumbnail previews
• Periodic re-scan — catches any files missed during downtime

Quick links

• Installation
• Configuration reference
• Web UI guide