Vivotek FE8171V User Manual page 197

=<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>
Return Code
400 Bad Request
415 Unsupported Media Type
DEFAULT DESCRIPTION
0 Request cached stream at most how many seconds ago.
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.)
The time Reference time for maxsft and minsft.
camera receives (This provides more precise time control to eliminate the
the request. inaccuracy due to network latency.)
Ex: Request the streaming from 12:20
rtsp://10.0.0.1/live.sdp?maxsft=10&reftime=12:30
N/A Check if the requested stream enables timeshift, feature
and if minsft is achievable.
If false, return "415 Unsupported Media Type".
0 How many seconds of cached stream client can accept at
least.
(Used by forcechk)
Description
Request is rejected because some parameter values are illegal.
Returned, if forcechk appears, when minsft is not achievable or the
timeshift feature of the target stream is not enabled.
VIVOTEK
User's Manual - 197