Applies to: All Hanwha cameras

Summary

This article reviews a few methods to lower bandwidth coming from our cameras on the network. The first item provides the greatest savings of bandwidth, and the savings decrease from there.

Lowering Bandwidth

To lower the bandwidth of a Hanwha camera:

1. Use H.265 Codec Over the Default H.264. This method is VMS Agnostic, if supported, affects single profiles, has high savings, and no quality impact.
   
   Most VMS partners use the H.264 codec over the H.265. For this change the setting is usually changed in the VMS. This is the simplest way to immediately see bandwidth reduction.
    

2. Set a lower VBR cap. This method is VMS agnostic, affects single profiles, has varying savings, and varying quality impact.

   NOTE: This setting is typically available in the VMS and should be changed 
   there. If it is not available in the VMS, the profiles used by the VMS must 
   be determined and the settings changed in the camera itself.

   
   Lowering the VBR cap to a setting lower then what the camera uses on average can provide varying savings. If the VBR cap is set too low, it affects the quality of the video negatively. 
   
   
   
   
    

3. Enable WiseStream. This method is VMS agnostic, affects all H.265/H.264 profiles, has high savings, and low quality impact.
   
   Depending on the camera model, it uses either WiseStream, WiseStream 2 (pixel-based), or WiseStream 3 (AI-Object based). 

   -Wisenet P AI series Gen 1, AI-based WiseStream 3
   -Wisenet 9 P series, AI-based WiseStream 3 
   -Wisenet 9 X series, AI-based WiseStream 3
   -Wisenet 7 X series, WiseStream 2
   -Wisenet 7 X AI series, AI-based WiseStream 3
   -Wisenet 5 X series , WiseStream
   -Wisenet Q series, WiseStream
   -Wisenet Q AI series, WiseStream 2
   -Wisenet A Series, WiseStream 2
   -Wisenet L Series, WiseStream 2
   
   Please refer to each camera datasheet for full details, including Multi-Sensor cameras.
   
   Video & Audio >  WiseStream

   checked = AI Object based, unchecked = pixel based.
   
   
   
   
   
   

4. Use Dynamic GoV and/or Dynamic FPS.
   
   VMS may not be able to use these; they affect individual profiles, saving dependent, and has low quality impact.

   NOTE: This only affects individual profiles but can be enabled on multiple 
   profiles.

   • Dynamic GoV will stretch out the keyframe interval (default 8 x framerate, maximum 16 x frame rate) when there are no objects in the scene. When an object appears it will inject keyframes at the normal interval (default 1 every 2 seconds)
      
   • Dynamic FPS does the same as above but with the frame rate from the camera. Minimum 1 FPS.
      
   • Dynamic FPS will lower the framerate to the set minimum when there is no motion detected.  The minimum is 1 FPS.
      
5. Ensure motion detection has been enabled in an area defined for Dynamic FPS to function.
   
   Basic > Video Profile > Select Profile to Edit
   
   

6. Lower the sharpness setting. This method is VMS agnostic, affects all profiles, has low savings, and low quality impact.
   
   Video & Audio > Camera Setup > Special Tab

   NOTE: Lowering the Sharpness setting from the default 12 to 9 can saved 
   bandwidth and have minimal effect on quality.