V.I.O. Stream User Manual
Page 68
STREAM User Manual
68
How the three Record Modes work
The illustrations below compare the Clip, Loop, and Loop & Forward Record Modes. When the explanation of
the examples refers to a tag, it means to send a tag command through the Web Programmable HTML/XML
interface.
In these diagrams, with the recorder in Record Standby mode, we show video recording done in a 10 minute
period between starting recording and stopping recording. The green area on the timeline indicates what
video footage is actually captured.
In all three examples, the Tag command was sent three times: at 00:02:06, at 00:05:54, and at 00:07:50. The
examples show how the results are different in all three cases.
The Loop Record Time is set to 30 seconds.
Using the Clip Record Mode, recording starts when a record start command is sent and runs continuously until
a record stop command is sent. This is exactly the way a standard video recorder works. In addition, each time
the Tag command is sent, a tag is recorded, for later editing use.
Using the Loop Record Mode, recording starts when the record start command is sent, but the captured video
isn’t saved until a tag command is sent. When a tag command is sent at 00:02:06, a set of three short clips,
called
loops
, are saved, one for each segment indicated in green around that tag. When a tag command is
sent at 00:05:54, another set of loops is saved, and finally, when a tag command is sent at 00:07:50, a third set
of loops is saved.
When in the Loop Record Mode, sending a tag command causes a set of loops to be saved, but it does NOT
put a tag on the video. Each loop is saved as a separate, untagged clip.
How loops are defined
You may have noticed that the saved clip isn’t always aligned exactly the same way with the clip. This is
because of the way the Loop Record Mode captures the loop clips.
Clip Method
2 min
4 min
6 min
8 min
10 min
Start
Recording
Stop
Recording
tag at
00:02:06
tag at
00:05:54
tag at
00:07:50
2 min
Loop Method
Stop
Recording
0
2 min
Start
Recording
4 min
6 min
8 min
10 min
tag at
00:02:06
tag at
00:05:54
tag at
00:07:50