Axis M3045-WV - About Stream Profiles; About ONVIF Media Profiles

AXISM3045-WVNetworkCamera
Video
•Maximumframerate.Toavoidbandwidthproblems,theframerateallowedtoeachviewercanbeLimitedtoaxed
amount.Alternatively,theframeratecanbesetasUnlimited,whichmeanstheAxisproductalwaysdeliversthehighest
frameratepossibleunderthecurrentconditions.
•Overlaysettings.SeeAboutoverlaytextonpage21.
ClickSavetoapplythenewsettings.
AboutH.264
H.264,alsoknownasMPEG-4Part10/AVC,isavideocompressionstandardthatprovideshighqualityvideostreamsatlowbitrates.
AnH.264videostreamconsistsofdifferenttypesofframessuchasI-framesandP-frames.AnI-frameisacompleteimage,whereas
P-framesonlycontainthedifferencesfrompreviousframes.
AboutZipstream
Axis’ZipstreamTechnologyisabitratereductiontechnologyoptimizedforvideosurveillance.Zipstreamreducestheaveragebitrate
intheH.264streambyremovingunnecessarydataandmakesitpossibletoallowhigherresolutions,reducestoragecostor
tokeeprecordingsforalongertime.
Toreducethebitrate,Zipstreamreducesthenumberofbitsintheareasoftheimagethatarelessinterestingfromavideo
surveillanceperspective,forexamplethebackground.Imagedetailsthatareimportantforforensicvideoanalysis,forexamplefaces
andlicenseplates,arepreservedwithenoughnumberofbits.
Axis’ZipstreamTechnologyforH.264conformstotheH.264standardandiscompatiblewiththird-partyclientsandVMSsolutions
thatdecodeH.264video.
MJPEG
Sometimestheimagesizeislargeduetolowlightorcomplexscenery.Adjustingthemaximumframesizehelpstocontrolthe
bandwidthandstorageusedbytheMotionJPEGvideostreaminthesesituations.SettingtheframesizetotheDefaultsetting
providesconsistentlygoodimagequalityattheexpenseofincreasedbandwidthandstorageusageinlowlight.Limitingtheframe
sizeoptimizesbandwidthandstorageusage,butmaygivepoorimagequality.Topreventincreasedbandwidthandstorageusage,
themaximumframesizeshouldbesettoanoptimalvalue.
Aboutstreamproles
Astreamproleisasetofpredenedstreamsettingsincludingresolution,compression,framerateandoverlaysettings.Stream
prolescanbeused:
•Whensettinguprecordingusingactionrules.SeeEventsonpage38.
•Whensettingupcontinuousrecording.SeeContinuousRecordingonpage44.
•IntheLiveViewpage–selectthestreamprolefromtheStreamproledrop-downlist.
Tocreateanewproleormodifyanexistingprole,gotoSetup>Video>StreamProles.
ToselectadefaultstreamprolefortheLiveViewpage,gotoSetup>LiveViewCong.
AboutONVIFmediaproles
AnONVIFmediaproleconsistsofasetofcongurationsthatcanbeusedtochangemediastreamsettings.ONVIFmediaproles
canbeusedbyaclienttoconguremediastreamproperties.
TheONVIFMediaProlespagelistsallpreconguredproles.Theseprolesareincludedintheproductforquicksetup.Youcan
add,modifyorremoveONVIFmediaprolesfromthispage.
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