HDMI1.4 概览和测试图样

PresentedbySteveHolmesSTEFebruaryHDMIOverviewandPicturetestingOverview,HDMI1.3,1.4,1.4A&3DDeconstructingHDMIhowisitrelatedtoSDIWheredidmyAncdatagoChallengesinMonitoringVideooverHDMI,HDCP,STB,OTT,CALMact,Tablet,Phone,??Agenda2HDMIOverviewHDMIwhatisitHDMI(High-DefinitionMultimediaInterface)isacompactaudio/videointerfacefortransferringuncompresseddigitalaudio/videodatafromanHDMI-compliantdevice("thesourcedevice")toacompatibledigitalaudiodevice,computermonitor,videoprojector,ordigitaltelevision.HDMIisadigitalreplacementforexistinganalogvideostandards.canbeusedforanyuncompressedvideoformat,includingstandard,enhanced,highdefinition,and3Dvideosignals;withupto8channelsofcompressedoruncompresseddigitalaudioHDMIcanuseHDCP(High-bandwidthDigitalContentProtection)toencryptthesignalifrequiredbythesourcedevice.CSS,CPRMandAACSrequiretheuseofHDCPonHDMIwhenplayingbackencryptedDVDVideo,DVDAudio,HDDVDandBlu-rayDisc4HDCPwhatisit?HDCP(High-bandwidthDigitalContentProtection)HDMIcanuseHDCPtoencryptthesignal,ifitisrequiredbythesourcedevice.ContentScrambleSystem,(CSS),isaDigitalRightsManagement,(DRM),andencryptionsystememployedoncommerciallyproducedDVD-Videodiscs.Utilizesaproprietary40-bitstreamcipher.Introducedaround1996.ContentProtectionforRecordableMediaandPre-RecordedMedia,(CPRM/CPPM),mechanismforcontrollingthecopying,movinganddeletionofdigitalmediaonapersonalcomputerorotherdigitalplayer.AformofDigitalRestrictionsManagement,(DRM),developedbythe4CEntity,LLC(consistingofIBM,Intel,MatsushitaandToshiba).TheAdvancedAccessContentSystem,(AACS),intendedtorestrictaccesstoandcopyingofthepostDVDgenerationofopticaldiscs.ReleasedApril2005andadoptedastheaccessrestrictionschemeforHDDVDandBlu-rayDisc.DevelopedbyaconsortiumthatincludesDisney,Intel,Microsoft,Panasonic,WarnerBros.,IBM,ToshibaandSony.5HDMIConnectorsThereare5typesofHDMIConnectors.TypeA,B,C,D,ETypeAStandardHDMIConnectorTypeBhasa2TMDSlinks.

(DualLinkHDMI)forSupperHighResolutions>4KTypeCisasmallerVersionofTypeATypeDisaMicroVersionofTypeATypeEisforAutomotiveapplications6TypeEAutomotiveHDMIVideoChannelsandSignalsTMDS-TransitionMinimizedDifferentialSignalingDuringtheVideoDataPeriod,thepixelsofanactivevideolinearetransmittedduringthehorizontalandverticalblankingintervals,audioandauxiliarydataaretransmittedwithinaseriesofpackets.TheControlPeriodoccursbetweenVideoandDataIslandperiods.[DDC-TheDisplayDataChannelacommunicationchannelusedbytheHDMIsourcedevicetoreadtheE-EDIDdatafromtheHDMIsyncdevicetolearnwhataudio/videoformatsitsupports.Thestandardmodespeed(100

kbit/s)andallowsoptionalsupportforfastmodespeed(400

kbit/s)usedforHDContentProtection.UtilityLineIsusedforEthernetandreturnAudioHPD-HotPlugDetectCEC-ConsumerElectronicsControlcommandandcontrolup-totenCEC-enableddevices7HDMIChannels8HDMILicensing,LLCHDMIVersions1.0–1.2aHDMI1.0wasreleasedonDecember9,2002AsinglecabledigitalAudio/VideointerfacewithaTMDSbandwidthof4.95Gbit/Sallowing3.96Gbit/Sofvideobandwidth,(1080p/60UXGA)and8channelsofLPCM/192kHz/24bitAudio.HDMI1.1wasreleasedonMay20,2004AddedsupportforDVDAudio.HDMI1.2wasreleasedonAugust8,2005Addedupto8channelsofonebitaudioandtheTypeAconnectorforcomputersources.HDMI1.2awasreleasedonDecember14,2005FullyspecifiesConsumerElectronicsControl.9HDMIVersions1.3–1.3CHDMI1.3wasreleasedJune22,2006Increasedthesingle-linkbandwidthto340MHz,(10.2Gbit/S),increaseddeepcolorfrom24bitto30bit,36bit,48bit.AddedDolbyTrueHD&DTS-HDaudioandAudio/VideoSync.Definedcategory1&2cablesandtestprocedures.AddedtypeCconnector.HDMI1.3awasreleasedonNovember10,2006HDMI1.3bwasreleasedonMarch26,2007HDMI1.3b1wasreleasedonNovember9,2007HDMI1.3cwasreleasedonAugust25,2008Eachaddingorchangingspecificitemsandsomehousekeeping.10HDMI1.4–1.4aHDMI1.4HDMI1.4cablehasanewdatachannelthat1.3andearlierdidnothave,foraReverseEthernetChannelandreturnaudio.HDMI1.4requiredthat3Ddisplayssupporttheframepacking3Dformatateither720p50and1080p24or720p60and1080p24Increaseinthemaximumresolutionto4K×2KHDMI1.4aThebigchangefrom1.4wasthat1.4aaddedside-by-side3Dhorizontalateither1080i50or1080i60andtop-and-bottom3Dateither720p50and1080p24or720p60and1080p24.Changeinthecablefrom1.3to1.4,Nochangeinthecablebetween1.4and1.4a11HDMI1.4EthernetChannelChangefrom1.3to1.4SomeSTBmaychecktoseeifPin14isused,toknowthattheTVsupportsSide-by-Side3DNeeds1.4HDMIcable(HEC–data)12HDMI1.44Kx2KSupport

Resolutiononparwithstate-of-the-artDigitalCinemaprojectorsusedinthelocalmultiplexeswillbecomingtoyourlivingrooms.4Kx2Kwhichrepresentsresolutionsof3840x2160and4096x2160willbothbesupportedbyHDMI1.4TheNextGenerationof3DVideoSolutions13HighSpeedHDMICableswEthernet14Thespecificationforthischannelisnotaschallengingasforthehigherspeed3.4GbpsTMDSpairandperformancecanbeachievedbymanagingthephysicalcabledesignwithparticularconsiderationtotheattenuation,commonmodeimpedanceanddifferentialimpedance.FormoredetailsontheHEACchannelperformancetargets,refertotheHEAC1SupplementtotheHDMISpecification.HDMIvsSDIHDMIsignalsTransition-minimizeddifferentialsignaling(TMDS)isatechnologyfortransmittinghigh-speedserialdataandisusedbytheDVIandHDMIvideointerfaces,aswellasotherdigitalcommunicationinterfaces.Thetransmitterincorporatesanadvancedcodingalgorithmwhichreduceselectromagneticinterferenceovercoppercablesandenablesrobustclock

recoveryatthereceivertoachievehighskewtolerancefordrivinglongercablesaswellasshorterlowcostcables.HDMIcarriesvideo,audioandauxiliarydataviaoneofthreemodes,calledtheVideoDataPeriod,theDataIslandPeriodandtheControlPeriodDuringtheVideoDataPeriod,thepixelsofanactivevideolinearetransmitted.

DuringtheDataIslandperiod(whichoccursduringthehorizontalandverticalblankingintervals),audioandauxiliarydataaretransmittedwithinaseriesofpackets.

TheControlPeriodoccursbetweenVideoandDataIslandperiods.ThisformatisverySimilartoSDISAV-Video-EAV-AncdataSampleFrameofHDMIdata17TMDSchannelsTheVideocarriedacrossthelinkwillbeinoneof3formats.RGB4:4:4YCBCR4:4:4YCBCR4:2:28Bitcolorismandatory10,12,or16Bitcolorisoptional.(DeepColor)ifDeepColorissupported12Bitisminatory.(1.3)VideoLevelsFullRange,LimitedRangeSDInormalrange10bitvideois64to940SDIextendedrange10bitis4to1019HDMIseebelow19ExtendedRangeYCbCraddedin1.4VideoDataEncodingEach8bitsofvideodataiscodedto10bits,usingatypeof8b10bcoding.Each10BitoutputiseitherXORorXNORtoproducethefewesttransitions.WithLSbofoutputmatchingLSbofinput.ThisoutputthenmaybeinvertedtoproducethebestDCbalanceofthetransmittedstream.OnSourcesandSinksanyanalogformatthatissupportedwillbesupportedinHDMI,framerateandcolorspace.AllHDMISourcesandSinksshallsupportRGB4:4:4AllSourcesshallsupporteitherYCBCR4:4:4orYCBCR4:2:2.AllSinksshallsupportbothYCBCR4:4:4andYCBCR4:2:220VideoDataEncoding21NORXNOR8Bto10BInvertTransmitVideodatainVideodataoutNORXNOR10Bto8BInvertVideodataoutReceiveVideodatainAuxDataInformation22SourceProdDesc:

-indicatestheSourceProductDescriptionthatisthenameofthemanufacturerofthedevice,ifpresent.AspectRatio:

-indicatestheaspectratiooftheimage.ACPPacket:

-indicatespresenceofAudioContentProtectionPacket.ISRCPacket:

-indicatespresenceofInternationalStandardRecordingCodes

GamutPacket:

-indicatespresenceof.VendorSpecificInfo:

-indicatesthepresenceofVendorSpecificInformation.AVIInfo:

-indicatespresenceofAVIInfoframe.SourceProdDescInfo:

-indicatesthepresenceofSourceProductDescriptionInformation.AudioInfo:

-indicatespresenceofAudioInformation.MPEGSourceInfo:

-indicatespresenceofMPEGSourceInformation.SentduringDataIslandperiodsClosedCaptions InNTSC608captionsarecarriedonLine21oftheactualVideoInHDSDI708captionsarecarriedasaDatapacketintheVerticalAncillaryspace(608arecarriedinsideofthe708packet)InMPEG608areonaVisiblePicturelinesoitiscodedwiththeVideoInMPEG708CaptionsarecarriedasuserdataintheheaderofeachPicturestartcodeHDMIknowsnothingaboutCaptions!!ItisSTBorDVD/BluRayplayerthatwilloverlaythecaptionsonthevideoContentprotection(HDCP)TherearethreemainpartstoHDCP’ssecuritysystem.AKEFirst,thereisthecryptographicAuthenticationandKeyExchange(AKE).WhenacompanywishestoproduceanHDCP-compliantdevice,thatcompanyrequestsasetofkeysfromtheHDCPlicensingbody.Afterthelicensingbodyhasdeterminedthatthecompany’sproducthasbeendesignedinamannerrobustenoughtowithstandattacksandthatthekeyswillbeprotected,thecompanywillbegivenaseriesofuniquesecretkeys.HandShakeOnceboththeplaybackdeviceandthedisplaydevicehavesettledonavaluewithwhichtoencryptthecontent,allthevideocontentwillbeencryptedusingthismutualvalue(thisisthesecondpart).

Additionally,thesystemwillcheckeverycoupleofsecondstoensuretheintegrityofboththekeysandthelink.Key-revocationlistThethirdaspectofHDCPsecurityisdevicerenewability.Thisistheabilityformedia,streamingcontent,orevenotherdevicestoinvalidatekeysknowntobeaproblem.

NonHDCPreceiversWhathappenswhenaNonHDCPreceiverishookedtoaHDCPtransmitter.Thetransmittertriestohandshakethereceiverdoesnotrespondandthetransmittershutsoffinabout3to5seconds.Wehavenotevenstartedthecontentyettoseeifitisprotectedornot.HDCPdoesnotturnonandoff.IfadeviceisHDCPcomplianttheHDCPsignalingisalwayson,evenfornotprotectedcontent.25HDMIMonitoringHowtoseetheOutputofaHDMIdeviceYouneedanHDCPcompliantdevice..HDCPcompliantWaveformMonitorSetTopBoxCellPhoneorTabletHowtoseetheOutputofaHDMIdeviceYouneedanHDCPcompliantdevice..HDCPcompliantPictureQualityTester29TektronixTranscoderPerformanceVerificationApplicationTranscodersFragmenters(Apple,MS,Adobe)OriginServerMasterEncodersTektronixPQA600CompareVideoQualitypreandpostTranscoderandatoutputoftheplayerTotesttheQualityoftheTranscoder,capturetheoutputoftheMasterencoder(themezzaninefile)thenCapturetheoutputoftheTranscoderatalloftheRates.RuntheDMOStestonthePQA600A30TektronixTranscoderPerformanceVerificationApplicationTranscodersFragmenters(Apple,MS,Adobe)OriginServerMasterEncodersTektronixPQA600CompareVideoQualitypreandpostTranscoderandatoutputoftheplayerTotesttheQualityoftheSystemEndtoEnd,capturetheoutputoftheTranscoder(usethecapturedfilefromtheprevioustest)thenCapturetheoutputofPlayoutdeviceifyouhavetheTestClientyoucanrequestthedifferentrates.RuntheDMOStestonthePQA600APre-introductionTechnologyDemonstration

New

SetTopBoxMonitoring–WFM/WVR5250HDMI(withHDCP)ContentMonitorAudioLoudnessMonitoringfortheCALM“QuickCheck”Black/FrozenVideoDetectionandvalidcolorgamutAdvancedErrorLoggingwithWebServerUIFullControlHDMIA/BSwitchedInputHDMIOut2xSDISwitchedInputsSDIOutHDMIDataScreensVideoSessionScreensInputSignaledformatMeasuredFormatInput&OutputHDCPstatus33Whenthingsarenotcorrect…34Inputformatwassignaledas12bButreceiveddatawasonly8bWhenthingsarenotcorrect…35Inputformatwassignaledas1080PButreceiveddatawas601colorspaceColoriswashedoutWhenthingsarenotcorrect…36Blacklevelsliftedalmost50mVWhenthingsarenotcorrect…37ColorBarsnotquitecorrectlookatRedandMagentaOthercolorsareoffalsoEDIDdatadump38EDIDDatafields39EDIDRowColumnValueDescription0x00x0-0x700FFFFFFFFFFFF00FixedHeader0x00x8-0x9XXXXManufacturerID0x00xa-0xbXXXXManufacturerProductCode0x00xc-0xfXXXXXXXXSerialNumber0x10x0XXWeekofManufacture0x10x1XXYearofManufacture0x10x201EDIDVersion0x10x303EDIDVersion0x10x4-0x8XXXXXXXXXXDisplayParameters0x10x9-0xfXXXXXXXXXXXXXXChromaticityCoordinates0x20x0-0x2XXXXXXChromaticityCoordinates0x20x3-0x5XXXXXXEstablishedtimingbitmap0x20x6-0xfXX...............XXStandardtiminginformation0x30x0-0x5XX...............XXStandardtiminginformation0x30x6-0xfXX...............XXDescriptor10x40x0-0x7XX...............XXDescriptor10x40x8-0xfXX...............XXDescriptor20x50x0-0x9XX...............XXDescriptor20x50xa-0xfXX...............XXDescriptor30x60x0-0xbXX...............XXDescriptor30x60xc-0xfXX...............XXDescriptor40x70x0-0xdXX...............XXDescriptor40x70xeXXNumberofExtensions0x70xfXXChecksumAdditionalrows0x8to0xfcancontainCEA-861extensionblockinformationthatcontainsfurtheraudioandvideodescriptors.NotesOnCALMActAudioMonitoring41LoudnessCalmSpotCheckPost-STBAudioMonitoring42ChannelMappingCALMActSpotCheckA“spotcheck”requiresmonitoring24uninterruptedhoursofprogrammingwithanaudioloudnessmeteremployingthemeasurementtechniquespecifiedintheRP,andreviewingtherecordsfromthatmonitoringtodetectanycommercialstransmittedinviolationoftheRP.

Topromotethereliabilityofthespotcheck,thestationorMVPDmustnotprovidepriornoticetotheprogrammerofthetimingofthespotcheck.Thisrequirementapplieswithrespecttoallspotchecks