Multi-Camera Playback is used to view historical footage with multiple cameras at the same time. This feature lets you put up to 4 cameras in a grid like formation and view the footage side-by-side. This can be used to track a person through multiple camera angles and review their actions in each frame. Instead of switching tabs and viewing footage one camera at a time, a user can increase their efficiency by using the Multi-Camera Playback feature.

Example

Using Multi-Camera Playback

  1. Open any camera in Verkada command
  2. Navigate to the particular time of interest using the historical video controls and selecting the date and time of the footage you want to see. To make this easier, set the Video Clip duration from 24 hours to 5 minutes.
  3. Click on the historical clip you want to view. To activate the Multi-Camera Playback feature, click on the + Cameras"button
  4. Select additional cameras you wish to add to the Multi-Camera view. You may search for cameras in the text box "Filter by camera name". Click on a camera to add it to the multi-camera playback. A blue checkmark will appear on its thumbnail.
  5. To temporarily drill into one particular camera and view only its feed, click on its name at the top, or click on its video feed
  6. Click on the back button at the top to return to multi-camera playback
  7. To rearrange the camera positions simply click and drag a video feed to the correct position.
  8. Take a snapshot of the multi-camera playback by selecting the Camera Icon, or archive all of the cameras' feeds with the Archive button to the left of the + Camera button.

Video Walkthrough

Considerations

Adding cameras or increasing playback speed will linearly increase the bandwidth consumption on the camera's network. This article lists the bitrates the different camera models use. The following parameters can be used to determine the amount of bandwidth which will be used for multi-camera playback:

  • HD bandwidth requirement for the camera model
  • Playback speed
  • Number of cameras being viewed

Calculating Requirements

To calculate the bandwidth required you can use the following formula:

HD bitrate * playback speed * number of cameras = Total bandwidth requirement 

For example, three D30s at 3x playback speed for an HD clip would be:

1 Mbps * 3 * 3 = 9 Mbps

These 3 D30s will take 9 Mbps total upload bandwidth from the network when played in multi-camera playback at 3x speed.

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