.Dav File
Definition
Dahua's proprietary container format wrapping an H.264 or H.265 stream plus metadata. Cannot be opened directly by mainstream players; converted with vendor tools or AmpedDVRConv.
Related terms
- BSA 2023 Section 63
- Bharatiya Sakshya Adhiniyam 2023 Section 63 (the successor to Section 65B of the Indian Evidence Act 1872): the electronic-record certificate that authenticates...
- DVR
- Digital Video Recorder. Takes analog feeds from CCTV cameras over coax (BNC), digitises them inside the unit, and writes to internal HDDs....
- H.264 (AVC)
- The dominant video codec in Indian DVR/NVR fleets in 2026. Compresses using I-frames (full picture), P-frames (forward predictions) and B-frames (bidirectional). Frame-level...
- NVR
- Network Video Recorder. Takes already-digital streams from IP cameras over Ethernet (usually PoE), and writes to HDDs in JBOD or RAID. Standard...
- Proprietary DVR File System
- A vendor-specific on-disk layout, neither FAT nor NTFS nor ext4. Records are stored as fixed-size segment files in a ring buffer with...
Explained in
- DVR/NVR and Surveillance System ForensicsDahua's proprietary container format wrapping an H.264 or H.265 stream plus metadata. Cannot be opened directly by mainstream players; converted with vendor to...