VIVOTEK
User's Manual - 199
79
Examples:
1. setvi.cgi?vi0=0(15000)1
2. setvi.cgi?vi0=1
Request 2 will not be accepted during the execution time(15 seconds).
8.14 Open Timeshift Stream
Note: This request requires Viewer access privileges.
Syntax:
For HTTP push server (MJPEG):
http://<servername>/<network_http_s<m>_accessname>?maxsft=<value>[&tsmode=<value>&reftim
e=<value>&forcechk&minsft=<value>]
For RTSP (MP4 and H264), the user needs to input the URL below into an RTSP compatible player.
rtsp://<servername>/<network_rtsp_s<m>_accessname>?maxsft=<value>[&tsmode=<value>&reftim
e=<value>&forcechk&minsft=<value>]
“n” is the channel index.
“m” is the timeshift stream index.
For details on timeshift stream, please refer to the “TimeshiftCaching” documents.
PARAMETER VALUE DEFAULT DESCRIPTION
maxsft <positive
integer>
0 Request cached stream at most how many seconds ago.
tsmode normal,
adaptive
normal Streaming mode:
normal => Full FPS all the time.
adaptive => Default send only I-frame for MP4 and
H.264, and send 1 FPS for MJPEG. If DI or motion
window are triggered, the streaming is changed to send
full FPS for 10 seconds.
(*Note: this parameter also works on non-timeshift
streams.)
reftime mm:ss The time
camera
receives the
request.
Reference time for maxsft and minsft.
(This provides more precise time control to eliminate
the inaccuracy due to network latency.)
Ex: Request the streaming from 12:20
rtsp://10.0.0.1/live.sdp?maxsft=10&reftime=12:30
forcechk N/A N/A Check if the requested stream enables timeshift, feature
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