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AXISP32DomeCameraSeries
Thedeviceinterface
Zipstream:Abitratereductiontechnology,optimizedforvideosurveillance,thatreducestheaveragebitrateinanH.264orH.265
streaminrealtime.AxisZipstreamappliesahighbitrateinsceneswheretherearemultipleregionsofinterest,forexamplein
sceneswithmovingobjects.Whenthesceneismorestatic,Zipstreamappliesalowerbitrate,andtherebyreducestherequired
storage.Tolearnmore,seeReducingthebitratewithAxisZipstream
Selectthedesiredlevelofbitratereduction:
•Off:Nobitratereduction.
•Low:Novisiblequalitydegradationinmostscenes.Thisisthedefaultoptionanditcanbeusedinalltypes
ofscenestoreducethebitrate.
•Medium:Visibleeffectsinsomescenesthroughlessnoiseandaslightlylowerlevelofdetailinregionsoflower
interest,forexamplewherethere’snomovement.
•High:Visibleeffectsinsomescenesthroughlessnoiseandalowerlevelofdetailinregionsoflowerinterest,
forexamplewherethere’snomovement.Werecommendthislevelforcloud-connecteddevicesanddevicesthat
uselocalstorage.
•Higher:Visibleeffectsinsomescenesthroughlessnoiseandalowerlevelofdetailinregionsoflowerinterest,
forexamplewherethere’snomovement.
•Extreme:Visibleeffectsinmostscenes.Thebitrateisoptimizedforsmallestpossiblestorage.
DynamicFPS(framespersecond):Turnontoallowthebandwidthtovarybasedonthelevelofactivityinthescene.More
activityrequiresmorebandwidth.
Lowerlimit:Enteravaluetoadjusttheframeratebetweenminimalfpsandthestreamdefaultfpsbasedonscenemotion.We
recommendyoutouselowerlimitinsceneswithverylittlemotion,wherethefpscoulddropto1orlower.
DynamicGOP(GroupofPictures):TurnontodynamicallyadjusttheintervalbetweenI-framesbasedonthelevelofactivity
inthescene.
Upperlimit:EnteramaximumGOPlength,thatis,themaximumnumberofP-framesbetweentwoI-frames.
P-frames:EnterthedesirednumberofP-frames.Thehigherthenumber,thelessbandwidthisrequired.However,ifthereare
networkcongestion,therecouldbeanoticeabledeteriorationinthevideoquality.
H.264prole:
•Baseline:Useifthevideomanagementclientdoesn’tsupportCABACentropycoding.
•Main:UseifthevideomanagementclientsupportsCABACentropycoding,toachievehighercompressionwith
maintainedvideoquality.Itrequiresmoreprocessingpowertodecodecomparedtothebaselineprole.
•High:UseifthevideomanagementclientsupportsCABACentropycoding,toachieveevenhighercompressionthan
withthemainprole.Itrequiresmoreprocessingpowertodecodecomparedtothemainprole.
Bitratecontrol:
•Average:Selecttoautomaticallyadjustthebitrateoveralongertimeperiodandprovidethebestpossibleimage
qualitybasedontheavailablestorage.
-
Clicktocalculatethetargetbitratebasedonavailablestorage,retentiontime,andbitratelimit.
-Targetbitrate:Enterdesiredtargetbitrate.
-Retentiontime:Enterthenumberofdaystokeeptherecordings.
-Storage:Showstheestimatedstoragethatcanbeusedforthestream.
-Maximumbitrate:Turnontosetabitratelimit.
-Bitratelimit:Enterabitratelimitthatishigherthanthetargetbitrate.
•Maximum:Selecttosetamaximuminstantbitrateofthestreambasedonyournetworkbandwidth.
-Maximum:Enterthemaximumbitrate.
•Variable:Selecttoallowthebitratetovarybasedonthelevelofactivityinthescene.Moreactivityrequiresmore
bandwidth.Werecommendthisoptionformostsituations.
Orientation
Rotate:Rotatetheimagetomatchyourrequirements.
Mirror:Turnontomirrortheimage.
Audio
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