Exfo EXpert IPTV Test Tools (FTB-200v2) Instrukcja Użytkownika Pobierz pdf (Strona 74)

74



AppendixB TechnicalSpecification

PhysicalLayersSupported‐

 10/100/1000Ethernet,Wi‐Fi802.11b/g/n.

RecognizedVideoCompressionStandardsCodecs‐

unknownvideo

motionJPEGvideo

MPEG‐1video

MPEG‐2video

ITU‐TH.261video

ITU‐T1996versionofH.263video

ITU‐T1998versionofH.263+video

ITU‐TH.264video

MPEG‐4video

M

icrosoft

VC1video

MPEG2,MPEG4part2&10(H.264).

RecognizedAudioCompressionStandardsCodecs–

unknownaudio

MPEG‐1Layer1audio

MPEG‐1Layer2audio

MPEG‐1Layer3audio

MPEG‐2AdvancedAudioCoding

AC‐3audio

MPEG‐4AdvancedAudioCoding

MPEG‐4LowDelayAdvancedAudioCo

ding

MPEG‐4Hig

hEfficiencyAdvancedAudioCoding



SignalingProtocols‐

 IGMPversions2&3,RTSP



STBEmulatiom‐

 IGMPJoinandLeaverequest

IGMPlatency

VoDRTSPPlayandStop

Connectsupto10channels(streams)

Monitorsupto10channels

 Videopreview(livefullframeSDandHD

)



Summary–

Vi

deoDescriptionInformation

 IPsourceaddress

 IPdestinationaddress

 Sourceport

 Destinationport

 Protocols

 Codectype

 Groupofpicturetype

 CurrentGOPlength

 AverageGOPlength

 MaxGOPlength

 AveragegapofIframe

 Framewidth

 Frameheight

 Framerate

 in

terlaced

 Average

numberofslicesinIframe

 Referenceclockrate

 Averagevideobandwidth

 Averagepacketsize



SummaryMetrics

 Measurementtime

 Averageaudio/videoMOS

 MaxPCRJitter

 Videopacketlossrate

 TR101290errorspriority1and2

IGMPLatency



Video‐

VideoPerceptualQualityMetrics

 Ins

ta

ntaneousabsoluteMOS

 MinimalabsoluteMOS

 AverageabsoluteMOS

 MaximumabsoluteMOS

 InstantaneousrelativeMOS

 MinimalrelativeMOS

 AveragerelativeMOS

 MaximumrelativeMOS

 Instantaneousaudio/videoMOS

 Minimalaudio/videoMOS

 Averageaudio/videoMOS

 Maximumaudio/videoMOS

 Transmissionquality:

EPSNR

EPSNR(ATIS)

 DegradationFactors:

Lo

st

Discard

ed

Codecquantizationlevel

Codecbandwidthrestrictions

Frameresolution

Framerate

GOPlength

Availablenetworkbandwidth

Audio/videosynchronization

Recency

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