VIVOTEK
222 - User's Manual
89
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).
8.17 Open Timeshift Stream
(timeshift_enable=1,
timeshift_c<n>_s<m>_allow=1)
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
