tool for DVRs and IP cameras based on DVR-IP protocol used by Dahua

 TaniDVR is a CLI tool for accessing DVRs and IP cameras used
 for CCTV surveillance systems based on the proprietary DVR-IP
 protocol (port 37777/TCP).
 .
 The main use of TaniDVR is to dump video from a device. With
 this, it can record to a Matroska (MKV) file or dump the video
 in realtime to play in an external player.
 .
 TaniDVR works with OEM DVRs and IP cameras produced by Dahua,
 sold under several brands, such as:
   * Apollo
   * Acorn F&S
   * BCS
   * C2Max
   * DVR365
   * GWave
   * Intelbras
   * IntelliPix
   * Kompsos
   * Mace S. P.
   * New Surway
   * NextVision
   * Q-See
   * WatchNet
   (and dozens more)
 .
 But if the device works with the DVR-IP protocol, it is expected
 to work.
 .
 TaniDVR is confirmed to work with the following devices:
   * BCS BCS-DVR0801QE II
   * BCS BCS-DVR1602Q
   * BCS BCS-DVR3208M
   * BCS BCS-IPC-HFW2100
   * BCS BCS-NVR0802
   * BCS BCS-TIP1130IR
   * Dahua DH-DVR0404HF-AN
   * Dahua DH-DVR1604HF-U-E
   * Dahua DH-NVR3816
   * Dahua IPC-HDB3200C
   * Intelbras VD 8E 240
   * Intelbras VD 16E 480C
   * QVIS Apollo
   (see updated list at TaniDVR's website)