Vivotek IP8151 User Manual page 176

VIVOTEK
6.23 Open Timeshift Stream
> 0, 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>&reftime=
<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>&reftime=
<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
maxsft <positive
interger>
tsmode normal,
adaptive
reftime mm:ss
forcechk N/A
minsft <positive
interger>
176 - User's Manual
DESCRIPTION
Request cached stream at most how many seconds ago.
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.)
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
Check if the requested stream enables timeshift, feature and if minsft is
achievable.
If false, return "415 Unsupported Media Type".
How many seconds of cached stream client can accept at least.
(Used by forcechk)
(capability.timeshift