Hauv no muaj hnub nyoog tam sim no ntawm qhov chaw tawg, lub sij hawm ntawm tsheb nyob hauv internet loj loj. Kev siv streaming yog ib qhov tseem ceeb tshaj plaws chaw uas tej ntaub ntawv lub sij hawm ntawm no yog tej thiab nqa instantly. Cov ntaub ntawv streaming yog tsis zoo xwb siv nyob hauv kev lom ze, tiam sis kuj tseem ceeb rau cov lag luam ua hauj lwm thiab. Cov piv txwv uas tau streaming daim ntaub ntawv yuav tau kawm hauv internet, xyuas ruaj ntseg rau tej thaj chaw deb, telemedicine, nyob nrog xov xwm (yees duab) yam.
Cov ntaub ntawv tau streaming yuav tau txhais tias yog ib tug mechanism ntawm Identify ntawv nco thiab seev. Lub cim xeeb yuav muab khaws cia rau ib tug tswv tsev PC los sis ib tug hard disk thiab lwm yam.
Rau tej ntaub ntawv streaming, seamless streaming yuav tsum tau ensured rau kev kawm ntawv zoo dua qub. Muaj ntau hom streaming twg muaj nyob rau hauv cov lag luam, zoo li RTPM (eeb raws li), Streaming HTTP nyob (HLS) Nws yog ib qho HTTP raws li thiab muaj ntau ntxiv. HLS yog txaus siab raws li iOS no thiab HTML, vim li ntawd nws yog lug siv.
Qhov kuaj cov streaming cov ntaub ntawv thiab cov ntawv yog qhov zoo heev. Vim li ntawd yuav yog ib txoj kev tshuaj ntsuam txog yuav tsum muaj ua ntej yuav siv nws mus nyob ib puag ncig ntawm lub sij hawm los ntau lawm.
Streaming cov ntaub ntawv kuaj kom yog yog ntsuas TCP qhov (socket) los ntsawb sib txuas rau jitter. Qhov no yog ib qhov tseem ceeb loj rau ntawm lub sijhawm streaming daim ntaub ntawv. Kuaj li no tib xeem raws li no thiab no TCP qeeb uas ua rau kev jitter. Nws kuj qhia tau hais tias tej yam ntawm cov ntaub ntawv txaus streaming.
Nram qab no yog ib co kev ntsuam xyuas tau thaum cov kwj soj ntsuam yuav yees duab/suab los sis lwm cov ntawv.
- Network sib txuas yog kuaj thiab qhia tau tseeb txog thaum uas siv cov RTCP thiab RTP tag ib UDP kev twb kev txuas. Cov kwj yog tseem analyzed rau kev kawm multimedia.
- Nyob rau theem no sib txuas yog sim ua ntej ntawm lub sij hawm streaming twg. Nws yuav xyuas network sib txuas siv RTSP tag ib TCP kev twb kev txuas. Qhov no tseem heev tshaj raws tu qauv siv yees duab li tus IP.
- Nyob rau hauv cov kauj ruam no, losses jitter thiab pob ntawv ntsuas. Ua tus yees duab streaming ntaub ntawv feem ntau kis dua TCP raws tu qauv, tuaj rau lawv tsis yog tsawg kawg tab sis jitter yog ib qhov teeb meem tshwm sim. Yog hais tias muaj ib pob ntawv poob thaum kis tau tus mob, TCP yuav kis nws dua, tiam sis tus ntsia hlau loj jitter yuav tsi zoo qhov tsis zoo ntawm cov zis.
Feem ntau cov kwj cov ntaub ntawv los soj ntsuam, dag cov kwj generated rau lub hom phiaj. Nyob hauv txoj kev no, ntau yam ntxwv thiab loads ntawm cov ntaub ntawv yuav tsum generated. Feem ntau simulators ua NetFlow packets uas muaj cov tsheb khiav ib cov qauv rau kev kuaj. Muaj ntau hom cuab yeej muaj uas yuav ua tau kom muaj cov traffics (uas yog cov kwj yeej) thiab mam li saib xyuas qhov cov ntaub ntawv no streaming.
Tam sim no peb paub txog cov ntaub ntawv streaming thiab cov kev siv lwm yam. Peb kuj paub tias cov kev tshuaj ntsuam txog ntawm tau streaming tej ntaub ntawv tseemceeb heev rau tag nrho cov kwj raws li daim ntaub ntawv zoo.
