Vivotek FE8171V manual Vivotek, = value &forcechk&minsft= value, Users Manual

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=<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	0		Request cached stream at most how many seconds ago.
		interger>
tsmode		normal,	normal		Streaming mode:
		adaptive			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		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
forcechk		N/A	N/A		Check if the requested stream enables timeshift, feature
					and if minsft is achievable.
					If false, return “415 Unsupported Media Type”.
minsft		<positive	0		How many seconds of cached stream client can accept at
		interger>			least.
					(Used by forcechk)
	Return Code			Description
	400 Bad Request			Request is rejected because some parameter values are illegal.
	415 Unsupported Media Type			Returned, if forcechk appears, when minsft is not achievable or the
				timeshift feature of the target stream is not enabled.

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