Скачать или смотреть Low video latency of Onvier

We use an Axis M-1065 camera aimed at a monitor showing an Android emulator running Onvier to examine the video latency. You can see the latency is about 0.2 second for both the single view (first half) and multi-view (second half). It should be sufficient for video surveillance.

The following is from our FAQ (https://www.ipcent.com/home/faq):

What is the video streaming latency of the apps?
We try prioritize minimizing latency, so the apps try the best to reduce the video streaming latency. It is at the expense of smoothness sometimes. We believe the real-time nature of video surveillance requires this. The video latency should be less than 0.5 seconds in most cases. The latency of our Windows version IP CENTCOM is slightly greater than that of our Android version Onvier.
Unfortunately, many factors that affect the video streaming are beyond our control unfortunately.
1. Camera streaming server quality. This is the most important one. We see a wide range of video latency among different brands. In some cases, one may see low latency with the manufacturer's app, but high one with our apps. Please keep in mind that we only use international standards such as RTSP, MJPEG. Many proprietary apps use manufacturers' proprietary protocols. One way to check this is using the best known RTSP client VLC Player to test the video stream.
2. Video resolution. The higher the resolution, the greater latency. It should not make much difference with a good RTSP stream server and a good computing device (Android, PC).
3. Encoding. Generally speaking, MJPEG steam has the lowest latency but its low compression rates lead to low frame rates. There should be little difference between H.264 and H.265 in terms of latency.
4. Network speed. It usually is not a factor for a LAN connection (Wi-Fi or Ethernet), but it could be a factor with a 4G connection, or public Wi-Fi connection with speed throttle.
5. Device running the app. Our apps use hardware codec to maximize the performance, so they are not demanding for CPU or memory. However, a very old PC or Android device may see significant video latencies. One can determine this by simply comparing an old device with a newer one running the same app.