HIKVISION camera accessing - ashBabu/Utilities GitHub Wiki

Camera Access and Video Streaming Techniques

This document compiles several topics related to accessing cameras, handling video streams, and working with digital video outputs from DVRs, along with an explanation of ONVIF.

1. Accessing a Camera (Not Webcam) Using JavaScript

Overview

To access a camera (other than a traditional webcam) and display its video feed in a browser, you may need to work with network or IP cameras that output video via RTSP, MJPEG, or even through a specialized streaming server. Below are some common approaches.

Option 1: Using RTSP/ONVIF Cameras with WebRTC or MJPEG

a. Set Up a Streaming Server

  • FFmpeg can convert an RTSP feed to a WebRTC-compatible or MJPEG stream.

    Example for MPEG-TS over UDP:

    ffmpeg -i rtsp://<camera-ip>/live -c:v libx264 -preset ultrafast -tune zerolatency -f mpegts udp://127.0.0.1:1234

For HIKVISION

  • rtsp://<username>:<password>@<DVR-ip-address>:554/Streaming/Channels/XYZ
  • XYZ: This part typically encodes both the channel number and the stream type (e.g., main or sub stream). For example, channel 1 might be 101 (where 1 stands for channel 1 and 01 indicates the main stream), channel 2 as 102, and so on.
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