Key Takeaways
- AV1 yuav muab cov neeg tsim ib qho qhib codec uas tsis muaj nqi vaj tse lossis cov ntawv tso cai kim heev los yuav.
- AV1 muaj ob npaug ntawm compression efficiency li AVC/h.264, tus thawj codec tam sim no uas cov kev pab cuam video online siv.
- AV1 siv bandwidth tsawg dua h.264, thiab nkag tau yooj yim dua rau cov tshaj tawm thiab cov neeg tsim cov ntsiab lus ua tsaug rau nws qhov chaw qhib.
Synaptics tsis ntev los no tau tshaj tawm ib pab pawg tshiab ntawm cov chips ua tau zoo rau cov khoom siv yees duab ntse uas yuav muab "Tom ntej" AV1 video txiav txim siab, uas nws tau lees tias yuav tsum tau saib cov ntsiab lus ntawm cov vev xaib xws li Netflix thiab YouTube hauv yav tom ntej.
Ntau tus ntawm peb siv Netflix thiab YouTube los hloov cov pob khoom cable TV peb ib zaug tau txuas nrog peb cov TV. Nrog cov ntsiab lus hauv online dhau los ua ib qho khoom muag, qhov ntawd txhais tau tias peb yuav tsum nrhiav txoj hauv kev los txhim kho qhov peb nkag mus rau cov ntsiab lus ntawd. Ib qho kev txhim kho loj tshaj plaws rau qhov no tuaj yeem tuaj nrog AV1 codec.
"Tam sim no codecs zoo li AV1, uas muab 60% qhov nruab nrab txo qis hauv bandwidth tshaj h.264, yog qhov tseem ceeb rau yav tom ntej vis dis aus kev ruaj ntseg," Steven Tripsas, tus thawj coj ntawm kev daws teeb meem ntawm Zype, hais rau peb ntawm email.
The Fundamentals of Codecs
Ib qho teeb meem loj tshaj plaws nrog kev sib koom hauv online video tam sim no los hauv daim ntawv codec uas nws siv los tshaj tawm cov ntsiab lus rau cov neeg siv.
A codec yog tsim los ntawm ob qhov tseem ceeb - tus encoder thiab tus decoder. Lub encoder yuav siv cov ntaub ntawv los ntawm cov yeeb yaj duab thiab compresses nws, ua rau nws me me thiab, yog li ntawd, yooj yim mus qhia thoob plaws hauv internet. Qhov zoo dua tus encoder tuaj yeem compress ib cov ntaub ntawv, qhov ceev ntawm cov ntaub ntawv yuav muaj peev xwm streamed thoob plaws lub vev xaib.
Lwm qhov ntawm tus codec, tus decoder, yog lub luag haujlwm rau decompressing cov ntaub ntawv thiab ua rau nws rov pom dua. Ob daim ntawm cov codec ua haujlwm nyob rau hauv tandem, thiab ob qho tib si yuav tsum tau rub tawm tus txheej txheem.
Tom ntej-tiam codecs zoo li AV1…yog qhov tseem ceeb rau yav tom ntej video faib sustainability.
Tau ntau xyoo tam sim no, tus codec hu ua AVC/h.264 tau nyob rau hauv lub hauv ntej ntawm online video streaming, nrog cov yeeb yaj duab zoo dua siv lwm codec hu ua HEVC (High Efficiency Video Coding), los yog h.265.
Thaum AVC / h.264 tau ua haujlwm zoo rau kev yees duab ntau xyoo dhau los, Mozilla hais tias kev siv codec tau ua rau cov chaw, cov neeg tsim cov ntsiab lus, thiab txawm tias cov tuam txhab browser raug yuam kom them kaum lossis ntau pua. ntawm ntau lab daus las nyob rau hauv tus nqi roy alty.
Nrog HEVC, peb tuaj yeem pom cov nqi no ob npaug lossis tripling, tshwj xeeb tshaj yog vim MPEG muaj ntau yam patents thiab ntawv tso cai, nyob ntawm seb cov codec siv li cas.
A Freer Future for Video Streaming
Nrog AV1, qhov xav tau kev txhawj xeeb txog cov nqi vaj tse thiab cov zoo li raug tshem tawm tag nrho ntawm qhov sib npaug. Hloov chaw yuav tsum muaj cov ntawv tso cai tshwj xeeb uas muaj cov ntawv luam zoo, AV1 yog ib qho ntawm cov cuab yeej qhib, uas txhais tau tias nws muaj pub dawb rau pej xeem.
Qhov no ua rau AV1 muaj kev sib tw ntau dua rau cov yeeb yaj kiab hauv web, txij li cov tuam txhab browser, cov neeg tsim khoom siv, thiab txawm tias cov neeg tsim cov ntsiab lus yuav tsis tas txhawj txog cov ntawv tso cai kim lossis cov nqi vaj tse uas tuaj yeem hloov tau txhua lub sijhawm.
Tus codec, nws tus kheej, yog tsim los ntawm ib pab pawg hu ua AOM, lossis AOMedia, uas yog tsim los ntawm cov thawj coj thev naus laus zis xws li Amazon, Netflix, Mozilla, Google, Cisco, thiab ntau dua. AV1 twb muaj nyob rau ntawm qee qhov chaw thiab apps, suav nrog YouTube, txawm hais tias tej zaum nws yuav ntev me ntsis ua ntej peb pom kev siv cov codec ntau.
"AV1 tseem nyob rau hauv nws txoj kev loj hlob thaum ntxov, thiab txawm tias nws tau siv los ntawm cov kev pabcuam streaming xws li Netflix thiab Google, [nws] yuav tsis muaj nyob rau txhua lub cuab yeej ib ntus." Eric Florence ntawm SecurityTech hais rau Lifewire los ntawm email. Nws kuj tau sau tseg tias cov tuam txhab xws li Google twb tau thawb rau AV1 los ua tus lej codec hauv cov khoom siv tshiab hauv TV tshiab, kom ntseeg tau tias muaj kev saws me nyuam ntau dua.
Thaum kawg, qhov kev nce qib AV1 coj thiab tsis muaj nqi vaj tse thiab cov ntawv tso cai txhais tau hais tias kev tshaj tawm video online yuav tsis yog pheej yig dua rau cov tuam txhab loj, tab sis kuj yuav pheej yig dua rau cov neeg tsim cov ntsiab lus thiab cov neeg siv tib yam.
Muaj qhov ua tau me me uas cov neeg siv tuaj yeem pom lawv tus kheej xav tau hloov kho lawv cov khoom siv streaming, tab sis cov kws tshaj lij hais tias tsis yog ib yam uas peb yuav tsum txhawj txog tam sim no.
