Applies to: BLAZE

Issue Summary

When an event occurs, playback of the event video clip can be delayed by up to several minutes. This can be particularly noticeable on camera streams with no scene activity, very low bitrates, significant streaming optimizations, or very long GOV/GOP lengths. It is also more likely to occur when events are caused by something unrelated to the scene, such as an alarm input, or a generic event.

Video storage requires both the GOP and accumulated data conditions to be met for a Write occurs. To optimize the number of Writes for disk performance, the system attempts storage only after at least 500 KB of video has accumulated on the Secondary stream. If a camera has no motion, the accumulated data size is small, and the resulting delay is normal.

Resolution

This is normal behavior for replaying event video. For faster access to recent event footage, switch to the associated camera’s live view and review the timeline.

As a point of reference, a 20 kbps stream will take 200 seconds to meet the 500 KB threshold.

To estimate a stream’s bandwidth:

1. Right-click the tile for the camera’s live view.
    
2. Select Video streams > Secondary and Show info.