Wowza Community

how to reduce latency of Axis P7214 video encoder?? is there any way to set delay in software??

Missing title. Missing body.

There will always be some latency between the encoder and the live video. This is the nature of streaming media. A few things can help.

A) The protocol you choose for playback can add a fair amount of latency. RTSP playback and RTMP playback have lower latency than segmented HTTP delivered content like Apple HLS, MPEG-DASH, Adobe HDS, and Microsoft Smooth Streaming. The reason for this is that the player will not play a segment until the three entire segments are finished downloading to the client to help smooth out networking issues. Content is segmented into chunks based upon the keyframe distance and time specified in Wowza Streaming Engine. Apple strongly recommends ten second segments, however that increases latency dramatically.

B) Make sure that your keyframe distance, also known as a “Group of Pictures” or GOP, is two seconds and is consistent. Your encoder or camera should be using the H.264 video codec and have an option to make sure that keyframes are created at that exact distance every time. If you can, please force the keyframe distance using whichever option your encoder or camera documentation specifies.

C) We have a guide that may help provide insight in lowering your latency for RTMP playback for desktop players.

More on low latency can be found at the following link.

D) If you are delivering content using Apple HLS, Adobe HDS, Microsoft Smooth Streaming, or MPEG-DASH you will want to modify your ChunkDurationTarget as shown in the following articles:

Apple HLS:

Adobe HDS:

Microsoft Smooth Streaming:


Please take a look at your camera’s specification and adjust the GOP (Axis sometimes refers to them as a GOV), to match your segment distance. If the keyframes are not created precisely then your segmented content will have inconsistent sizes.

I hope that this helps to address your latency concerns.