User's Manual

GXV3662IPdomecameraSeries
Firmware1.0.4.8Page
of
22
GrandstreamNetworks,Inc. 11/08/10
Grandstreamnetworkcamerasordigitvideocamerasinthesamesubnet.
GXV3662
GXV3662
GXV3662
GXV3662Series
Series
Series
SeriesVideo
Video
Video
Video&
&
&
&Audio
Audio
Audio
AudioPage
Page
Page
Page
OnScreenDisplay(OSD)Settings
OSD
OSD
OSD
OSDTime/
Time/
Time/
Time/Text
Text
Text
Text
–Thetimestamp
andchannelnamedisplayedonthe
screen.
VideoSettings
Preferred
Preferred
Preferred
PreferredVideo
Video
Video
VideoCodec
Codec
Codec
Codec –TheGXV3662supportstheH.264videocodec.
Resolution
Resolution
Resolution
Resolution –Thehighertheresolutionis,thebetterthevideoqualityis,andhigher
bandwidthisrequired.
Low-----------------------�HighResolution
QCIFCIF2CIFD1
Bit
Bit
Bit
BitRate
Rate
Rate
Rate –Thenumberofbitsthatare
conveyedorprocessedperunitoftime.
Maximum
Maximum
Maximum
MaximumFrame
Frame
Frame
FrameRate
Rate
Rate
Rate –Thevideoframe
rateisadjustablebasedonnetwork
conditions. Increasingtheframeratewill
increasetheamountofdatasignificantly
thereforeconsumingmorebandwidth .
.
.
.Video
willbeimpairedduetopacketlosswhen
thereisinsufficientbandwidth.
Bit
Bit
Bit
BitRate
Rate
Rate
RateControl
Control
Control
Control –VariableBitrate(VBR)
andConstantBitRate(CBR).
VariableBitRate -IfVBRisselected,thecodecvariestheamountofoutputdatapertime
segment.VBRproducesabetterquality-to-spaceratio.Thebitsavailableareusedtoenable
moreflexiblyandencodesoundorvideodatamoreaccurately,withfewerbitsusedinless
demandingpassagesandmorebitsusedindifficult-to-encodepassages.
ConstantBitRate -IfCBRisselected,thecodec ’ soutputdataisconstantregardlessofthe
inputdata.Theoutputbitrateisdefinedin“Bitrate”.CBRisusefulforstreamingmultimedia
contentonlimitedcapacitychannels.Itiseasiertocalculaterequiredbandwidthaswellas
therequiredstoragespaceusingCBR.
I-frame
I-frame
I-frame
I-frameInterval
Interval
Interval
Interval –Whilestreamingvideooveranetwork,compressiontechnologiesareused
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