Axis P1245 User Manual

AXISP1245NetworkCamera
Aboutvideosettings
AboutGOPlength
AGroupofPictures(GOP)containsoneI-framefollowedbyanumberofP-frames.TheGOPlengthisthenumberofframes
betweentwoI-frames.
EqualvaluesforGOPlengthandframerateresultinoneGOPpersecond.AhigherGOPlengthvalueresultsinmoresmall-sized
P-framesandfewerlarge-sizedI-frameswhilekeepingthesameframerate.Inotherwords,ahighGOP-lengthvaluesaves
bandwidth,butthevideoqualitymaydecrease.AlowGOP-lengthvalueincreasesthevideoqualitybutrequiresmorebandwidth.
AboutH.264proles
TheAxisproductsupportsthefollowingH.264prole(s):
•Baseline:UsetheBaselineproleiftheclientdoesnotsupportCABACentropycoding.
•Main:TheMainproleusesCABACandprovidesabettercompressionwithmaintainedvideoquality.Itrequiresalarger
amountofprocessingpowertodecodethantheBaselineprole.
•High:TheHighproleprovidesahighercompressionthanbothMainandBaselineproles,butrequiresmoreprocessing
powertodecode.Highprolesupports8x8blocks,whichreducesthebitratefurthercomparedtotheMainprole.
Aboutbitratecontrol
Bitratecontrolisusefultomakesurethevideostreamingdoesnottakeuptoomuchbandwidth.
Thebuilt-inbitratecontrolcanbecombinedwithZipstream,seeAboutZipstreamonpage19.Werecommendusingahighbitrate
limittoenablethefullpotentialofZipstream.
Aboutvariablebitrate
Variablebitrate(VBR)adjuststhebitrateaccordingtotheimagecomplexity.Whentheactivityinthesceneincreases,VBRadjusts
thebitrateaccordingtothecomplexity,usingupmorebandwidthforincreasedactivityinthescene,andlessforlowersceneactivity.
Variablebitrateissuitableifthereisasurplusinbandwidth,wheretheincreasedbitratemaynotbeanissue.
Aboutmaximumbitrate
Ifyouhavelimitedbandwidth,werecommendMaximumbitrate(MBR).MBRallowsyoutosetatargetbitratetocontrolthe
bandwidthconsumption.Thetargetvaluelimitsthebitrate,butitmaintainsaexibilitytobeabletoprioritizeacontinuousvideo
stream.Consequently,theframeratemightneedtogodownandtheimagequalitymightdecrease.Topartlycompensateforthis,
youcanselectwhichvariableshallbeprioritized.Notsettingaprioritymeansthatframerateandimagequalityareequallyaffected.
HowtosetanH.264prole
1.TochangethesettingsforallH.264streamsthatdonotuseastreamprole,gotoVideo>VideoStream>H.264.
2.ToincreaseordecreasethenumberofframesperGOP,settheGOPlength.
3.SelectoneoftheH.264proles.
4.Selectoneofthefollowing:
-Variablebitrate
-Maximumbitrate
5.IfyouselectMaximumbitrate,selectwhichvariabletoprioritizeinthePrioritydrop-downlist.
6.ClickSave.
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Axis P1245 Specifications

General

Type	IP security camera
Placement supported	Indoor
Connectivity technology	Wired
Number of cameras	1
Mounting brackets included	Yes
Storage temperature (T-T)	-40 - 65 °C
Operating temperature (T-T)	-20 - 50 °C
Operating relative humidity (H-H)	10 - 85 %
Sensor type	CMOS
Optical sensor size	1/3 \
Built-in HDD	No
Compatible memory cards	MicroSD (TransFlash), MicroSDHC, MicroSDXC
Power source type	PoE
Power consumption (max)	4 W
Power consumption (typical)	2.5 W
Form factor	Covert
Mounting type	Ceiling/Wall/Desk
Product color	White
Housing material	Plastic, Steel
Networking standards	IEEE 802.3af, IEEE 802.3at
Ethernet interface type	Fast Ethernet
Supported network protocols	IPv4/v6, HTTP, HTTPS , SSL/TLS , QoS Layer 3 DiffServ, FTP, CIFS/SMB, SMTP, Bonjour, UPnPTM, SNMPv1/v2c/v3 (MIB-II), DNS, DynDNS, NTP, RTSP, RTP, SFTP, TCP, UDP, IGMP, RTCP, ICMP, DHCP, ARP, SOCKS, SSH
Security algorithms	802.1x RADIUS, HTTPS
Camera shutter speed	1/32500 - 1/25 s
Minimum illumination	0.22 lx
Maximum resolution	1920 x 1020 pixels
Supported video modes	1080p
Video compression formats	H.264
Supported graphics resolutions	1920 x 1080 (HD 1080)
Harmonized System (HS) code	85258900

Weight and Dimensions

Depth	109 mm
Width	46 mm
Height	16.5 mm
Weight	72 g