Axis P3227–LV - How to Reduce Bandwidth and Storage

AXISP32Series
Setup
MotionJPEG
MotionJPEGorMJPEGisadigitalvideosequencethatismadeupofaseriesofindividualJPEGimages.Theseimagesarethen
displayedandupdatedataratesufcienttocreateastreamthatshowsconstantlyupdatedmotion.Fortheviewertoperceivemotion
videotheratemustbeatleast16imageframespersecond.Fullmotionvideoisperceivedat30(NTSC)or25(PAL)framespersecond.
TheMotionJPEGstreamusesconsiderableamountsofbandwidth,butprovidesexcellentimagequalityandaccesstoeveryimage
containedinthestream.
H.264orMPEG-4Part10/AVC
Note
H.264isalicensedtechnology.TheAxisproductincludesoneH.264viewingclientlicense.Installingadditionalunlicensed
copiesoftheclientisprohibited.Topurchaseadditionallicenses,contactyourAxisreseller.
H.264can,withoutcompromisingimagequality,reducethesizeofadigitalvideolebymorethan80%comparedtotheMotion
JPEGformatandbyasmuchas50%comparedtotheMPEG-4standard.Thismeansthatlessnetworkbandwidthandstoragespace
arerequiredforavideole.Orseenanotherway,highervideoqualitycanbeachievedforagivenbitrate.
Formoreinformation,seewww.axis.com/learning/web-articles/technical-guide-to-network-video/compression-formats
Howtoreducebandwidthandstorage
Important
Ifyoureducethebandwidthitcanresultinlessdetailsinthepicture.
1.GotoliveviewandselectH.264.
2.GototheStreamtab.
3.Dooneormoreofthefollowing:
-TurnontheZipstreamfunctionality.
-TurnontheGOPandsetahighGOPlengthvalue.
-Increasethecompression.
-TurnonthedynamicFPS.
Aboutviewarea
Aviewareaisacroppedpartofthefullview.Youcanstreamandstoreviewareasinsteadofthefullviewtominimizebandwidth
andstorageneeds.IfyouenablePTZforaviewarea,youcanpan,tiltandzoomwithinit.Byusingviewareasyoucanremove
partsofthefullview,forexamplesky.
Whenyousetupaviewarea,werecommendyoutosetthevideostreamresolutiontothesamesizeasorsmallerthantheviewarea
size.Ifyousetthevideostreamresolutionlargerthantheviewareasizeitimpliesdigitallyscaledupvideoaftersensorcapture,
whichrequiresmorebandwidthwithoutaddingimageinformation.
Forinformationonhowtocreateaviewarea,seetheproduct’sbuilt-inhelp.
Aboutevents
Theeventpagesallowyoutocongureyourproducttoperformactionswhendifferenteventsoccur.Forexample,theproduct
canstartarecordingorsendanemailnoticationwhenmotionisdetected.Thesetofconditionsthatdeneshowandwhen
theactionistriggerediscalledanactionrule.
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