Axis Q6045-E MK II Manual de usuario Pagina 19
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Valorado. / 5. Basado en revisión del cliente
AXISQ6045-EMkIIPTZDomeNetworkCamera
Video
H.264
H.264,alsoknownasMPEG-4Part10/AVC,isavideocompressionstandardthatprovideshighqualityvideostreamsatlowbitrates.
AnH.264videostreamconsistsofdifferenttypesofframessuchasI-framesandP-frames.AnI-frameisacompleteimagewhereas
P-framesonlycontainthedifferencesfrompreviousframes.
TheH.264streamsettingscanbeconguredfromtheVideo>VideoStreampage.SelecttheH.264tab.Thesettingsdenedinthis
pagewillapplytoallH.264streamsthatdonotuseastreamprole.
TheGOPlengthisthenumberofframesbetweentwoconsecutiveI-frames.IncreasingtheGOPlengthmaysaveconsiderablyon
bandwidthrequirementsinsomecases,butmayalsohaveanadverseaffectonimagequality.
TheAxisproductsupportsthefollowingH.264prole(s):
•Baseline.TheBaselineproleisrecommendedforclientsthatdon’tsupportCABACentropycoding.
•Main.TheMainproleprovideshighercompressionwithmaintainedvideoqualitycomparedtotheBaselineprolebut
requiresmoreprocessingpowertodecode.
ThebitratecanbesetasVariablebitrate(VBR)orMaximumbitrate(MBR).VBRadjuststhebitrateaccordingtotheimage
complexity,usingupmorebandwidthforincreasedactivityintheimage,andlessforlowerimageactivity.Whentheactivityin
thesceneincreases,thebitratewouldusuallyincreaseaswell.Ifthereisasurplusinbandwidth,thismaynotbeanissueand
selectingVariablebitrate(VBR)willbesufcient.Butifbandwidthislimited,itisrecommendedtocontrolthebitratebyselecting
Maximumbitrate(MBR).Whentheactivityinthesceneincreases,VBRadjuststhebitrateaccordingtothecomplexity,usingup
morebandwidthforincreasedactivityinthescene,andlessforlowersceneactivity.MBRallowsyoutosetatargetbitratethat
limitsthebandwidthconsumption.
TheMBRtargetbitrateworksliketheceilingofatent.Itlimitsthebitrate,whilemaintainingsomeexibility.Thebitrate
maybounceupanddownwithinthesettargetbutwhenitnearsthesettargetvalue,thelimitationkicksin.However,because
MBRwillalwaysprioritizeacontinuousvideostream,itallowstemporaryovershootsfromthetargetbitrate.Becausesettinga
targetvaluepreventsthebitratefromincreasing,framerateandimagequalityareaffectednegatively.Topartlycompensatefor
this,selectwhichvariableshallbeprioritized,framerateorimagequality.Notsettingaprioritymeansthatframerateand
imagequalityareequallyaffected.
Thecurrentbitratecanbesettoappearastextoverlay.UnderOverlaySettings,selectIncludetextandenterthemodier
#bintheeld.
Toapplythesettings,clickSave.
MJPEG
Sometimestheimagesizeislargeduetolowlightorcomplexscenery.Adjustingthemaximumframesizehelpstocontrolthe
bandwidthandstorageusedbytheMotionJPEGvideostreaminthesesituations.SettingtheframesizetotheDefaultsetting
providesconsistentlygoodimagequalityattheexpenseofincreasedbandwidthandstorageusageinlowlight.Limitingtheframe
sizeoptimizesbandwidthandstorageusage,butmaygivepoorimagequality.Topreventincreasedbandwidthandstorageusage,
themaximumframesizeshouldbesettoanoptimalvalue.
StreamProles
Astreamproleisasetofpredenedstreamsettingsincludingresolution,compression,framerateandoverlaysettings.Stream
prolescanbeused:
•Whensettinguprecordingusingactionrules.SeeEventsonpage39.
•Whensettingupcontinuousrecording.SeeContinuousRecordingonpage46.
•IntheLiveViewpage–selectthestreamprolefromtheStreamproledrop-downlist.
Forquicksetup,useoneofthepredenedstreamproles.Eachpredenedprolehasadescriptivename,indicatingitspurpose.If
required,thepredenedstreamprolescanbemodiedandnewcustomizedstreamprolescanbecreated.
Tocreateanewproleormodifyanexistingprole,gotoSetup>Video>StreamProles.
19
- UserManual 1
- TableofContents 4
- SafetyInformation 6
- HazardLevels 6
- OtherMessageLevels 6
- HardwareOverview 7
- ConnectorsandButtons 7
- LEDIndicators 8
- MidspanLEDIndicators 9
- AccesstheProduct 10
- AccessfromaBrowser 10
- AccessfromtheInternet 10
- SettheRootPassword 11
- TheLiveViewPage 11
- MediaStreams 14
- HowtoStreamH.264 14
- AXISMediaControl(AMC) 14
- SetUptheProduct 17
- BasicSetup 17
- SetUpVideoStreams 18
- StreamProles 19
- CameraSettings 20
- ImageSettings 21
- OverlayImage 22
- PrivacyMask 23
- ConfiguretheLiveViewPage 24
- PTZ(PanTiltZoom) 26
- PresetPositions 26
- Autotracking 27
- Gatekeeper 28
- GuardTour 28
- OSDIZones 29
- Advanced 29
- ControlQueue 31
- Detectors 32
- ShockDetection 32
- MotionDetection 32
- BasicVideoAnalytics 33
- Applications 37
- ApplicationLicenses 37
- UploadApplication 37
- ApplicationConsiderations 37
- SetUpActionRules 39
- AddRecipients 41
- RecipientTypes 42
- SetUpEmailRecipients 42
- CreateSchedules 43
- SetUpRecurrences 43
- EnableOpenCasingDetection 43
- ConnecttheCable 44
- Recordings 45
- FindRecordings 45
- PlayRecording 45
- ExportVideoClip 46
- ContinuousRecording 46
- Languages 47
- SystemOptions 48
- Security 48
- Date&Time 50
- Maintenance 57
- ResettoFactoryDefaultSettings 59
- Troubleshooting 60
- ChecktheFirmware 60
- UpgradetheFirmware 60
- TechnicalSpecifications 64
- EricYoung([email protected]) 65
- PerformanceConsiderations 66
- UserManualVer.M5.6 67
- Date:May2015 67
- PartNo.1463329 67
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