Go to documentation repository
Button functions
You can navigate through the recording using playback control buttons.
The 
button starts playback from the selected frame, the 
button stops playback.
When you left-click the 
button, playback is in the forward direction. When you right-click this button, playback is in the reverse direction.
When you short-click the button, only the current selected recording of the archive is played back. Hold the button to start playing back the next recording after the end of playing back the previous one.
Note
You can change the way playback is controlled so that by short left-click the recordings are played back continuously, and only one selected recording is played back by long click. For this, use the LButtonClickContinuousPlayEnable registry key (see Registry keys reference guide).
The 
and 
buttons increase or decrease the playback speed or slide show speed in the pause mode.
To go to the pause mode, click the 
button. To resume playback, click the button.
Playback speed
To control the speed of playback, use the and buttons.
During fast and slow playback, speed-up or speed-down level is displayed in place of the button, while the functionality of the button remains the same. The maximum possible speed-up is 998 times, the maximum possible speed-down is 8 times.
Features of playback with modified speed:
- If recordings from the Edge storage are used for playback, the maximum possible level of speed-up and speed-down depends on the limitations of a camera (see functional characteristics of an IP camera in the control panel of its web interface).
- Recorded audio of the archive recording isn't played back.
- You can also control the speed using the mouse wheel (described below).
When you fast playback the archive in H.264 and MPEG4 format, only the key frames are played back:
- starting from 8x speedup when playing back backward regardless of the number of cameras selected for playback;
- starting from 4x speedup when playing back forward if you selected several cameras;
- starting from x12 speedup when playing back forward if you selected one camera. You can specify this setting in the MonitorForwardSkipSpeed registry key (see Registry keys reference guide).
- When you play back the archive 2-10 times faster, visual change in speed may not be noticeable if the computer processing power is insufficient. 12x and more speedup becomes noticeable because only key frames are played back, that is, decimation is enabled. By default, decimation starts at 12x speedup. You can change this value in the MonitorForwardSkipSpeed registry key (see Registry keys reference guide). You must make changes in the registry of the computer on which you view videos with speedup. After making the changes, restart the computer.
Control using mouse wheel
When you hover the mouse cursor over the playback control panel, you can control the playback speed using the mouse wheel. The playback speed changes smoothly as follows:
If playback isn't started, then when you hover the mouse cursor over the playback control panel, mouse wheel scrolling allows you to switch between the archive recordings (see Video sequence browsing).
If you hover the cursor over the video, then mouse wheel scrolling scales the video (see Video image scaling in Surveillance window). You can enable playback speed control using the mouse wheel regardless of the cursor position in the Surveillance window—see the description of the MonitorPlaybackControlByMouseWheel registry key in the Registry keys reference guide. Also, this key enables pausing/resuming playback by clicking the mouse wheel. However, this action is no longer used to control telemetry (see Mouse PTZ control).
Overview
Content Tools