Axis 02457-001 Axis M3057-PLR Mk II User Manual

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M3057-PLRMkIIDomeCamera

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Streamingandstorage

Videocompressionformats

Decidewhichcompressionmethodtousebasedonyourviewingrequirements,andonthepropertiesofyournetwork.The

availableoptionsare:

MotionJPEG

Note

ToensuresupportfortheOpusaudiocodec,theMotionJPEGstreamisalwayssentoverRTP.

MotionJPEG,orMJPEG,isadigitalvideosequencethatismadeupofaseriesofindividualJPEGimages.Theseimagesarethen

displayedandupdatedataratesufcienttocreateastreamthatshowsconstantlyupdatedmotion.Fortheviewertoperceivemotion

videotheratemustbeatleast16imageframespersecond.Fullmotionvideoisperceivedat30(NTSC)or25(PAL)framespersecond.

TheMotionJPEGstreamusesconsiderableamountsofbandwidth,butprovidesexcellentimagequalityandaccesstoeveryimage

containedinthestream.

H.264orMPEG-4Part10/AVC

Note

H.264isalicensedtechnology.TheAxisproductincludesoneH.264viewingclientlicense.Toinstalladditionalunlicensed

copiesoftheclientisprohibited.Topurchaseadditionallicenses,contactyourAxisreseller.

H.264can,withoutcompromisingimagequality,reducethesizeofadigitalvideolebymorethan80%comparedtotheMotion

JPEGformatandbyasmuchas50%comparedtoolderMPEGformats.Thismeansthatlessnetworkbandwidthandstoragespace

arerequiredforavideole.Orseenanotherway,highervideoqualitycanbeachievedforagivenbitrate.

H.265orMPEG-HPart2/HEVC

H.265can,withoutcompromisingimagequality,reducethesizeofadigitalvideolebymorethan25%comparedtoH.264.

Note

•H.265islicensedtechnology.TheAxisproductincludesoneH.265viewingclientlicense.Installingadditionalunlicensed

copiesoftheclientisprohibited.Topurchaseadditionallicenses,contactyourAxisreseller.

•Mostwebbrowsersdon’tsupportH.265decodingandbecauseofthisthecameradoesn’tsupportitinitswebinterface.

InsteadyoucanuseavideomanagementsystemorapplicationsupportingH.265decoding.

HowdoImage,Stream,andStreamprolesettingsrelatetoeachother?

TheImagetabcontainscamerasettingsthataffectallvideostreamsfromtheproduct.Ifyouchangesomethinginthistab,it

immediatelyaffectsallvideostreamsandrecordings.

TheStreamtabcontainssettingsforvideostreams.Yougetthesesettingsifyourequestavideostreamfromtheproductanddon’t

specifyforexampleresolution,orframerate.WhenyouchangethesettingsintheStreamtab,itdoesn’taffectongoingstreams,but

itwilltakeeffectwhenyoustartanewstream.

TheStreamprolessettingsoverridethesettingsfromtheStreamtab.Ifyourequestastreamwithaspecicstreamprole,the

streamcontainsthesettingsofthatprole.Ifyourequestastreamwithoutspecifyingastreamprole,orrequestastreamprole

thatdoesn'texistintheproduct,thestreamcontainsthesettingsfromtheStreamtab.

Bitratecontrol

Bitratecontrolhelpsyoutomanagethebandwidthconsumptionofyourvideostream.

Variablebitrate(VBR)

Variablebitrateallowsthebandwidthconsumptiontovarydependingonthelevelofactivityinthescene.Themoreactivity,

themorebandwidthyouneed.Withvariablebitrateyouareguaranteedconstantimagequality,butyouneedtomakesure

youhavestoragemargins.

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Axis 02457-001 M3057-PLR Mk II 6MP Dome Camera with 360° Panoramic View