Codec yakaunzwa muna 2018 yakatsigirwa nevatambi vakuru mumusika wekutepfenyura. Vatengesi ve Hardware vakasimbisa rutsigiro rweiyo codec nyowani, uye magumo ane AV1 hardware decoding inofanira kuwanikwa mukupera kwegore. Zvichienderana nemamiriro ezvinhu aya, patent trolls nemari yekuda kwakawedzera kushanda.
Video codec yakavhurika sosi yakagadziridzwa kubvira 2015 nevainjiniya kubva kumakambani akati wandei, kusanganisira Amazon, BBC, Netflix, Hulu nevamwe, vakagadzira Alliance yeOpen Media (AOMedia). Iyo tekinoroji nyowani inoitirwa kunyanya kutepfenyura vhidhiyo mune ekupedzisira-yepamusoro resolution (4K nepamusoro), ine yakawedzera ruvara palette uye akasiyana HDR matekinoroji. Pakati pezvinhu zvikuru zvecodec, AOMedia inonongedza compression algorithm kana ichienzaniswa nemaitiro aripo, inofanotaurwa hardware komputa zvinodiwa, uye yakanyanya kuchinjika uye scalability.
Aya makambani ane ega ekufambisa masevhisi anoda macodecs anoshanda semhepo. Chekutanga, AV1 inoderedza Internet yekubatanidza bandwidth zvinodiwa zvese padanho redata (DPC) uye pamwero wevanopa uye vashandisi vekupedzisira. Chechipiri, Amazon Studios 'kushandisa 65mm firimu uye IMAX MSM 9802 makamera (ayo akaoma zvikuru kurenda) uye RED Monstro yefirimu Aeronafta () inoratidza kuti kambani iri kugadzirira nguva ye-post-4K, apo macodecs emazuva ano asingazoiti seanoshanda.
Kana ari software decoders, ivo parizvino makambani akawanda anosanganisira Cisco, Google, Netflix, Microsoft uye Mozilla. Panguva imwecheteyo, software decoding, sekutonga, nguva dzose inoreva kuwedzera kushandiswa kwesimba uye kushandiswa kwakanyanya. Naizvozvo, zvichave zvinonakidza kuona kutsigirwa kwehardware decoding.
Chips & Media yaive imwe yekutanga kuunza iyo AV1 hardware decoder muna Gumiguru gore rapfuura. Vhidhiyo processor inzvimbo yehungwaru ine rezinesi (yakagadzirwa padanho reRTL) iyo inogona kuiswa musystem-on-chip (SoC) uchishandisa iyo yemukati ARM AMBA 3 APB uye ARM AMBA3 AXI mabhazi. Decoder iyi inotsigira AV1 codec level 5.1, yakanyanya bitrate ye50 Mbps, kudzika kweruvara kwe8 kana gumi bits, uye 10:4:2 color subsampling. Iyo Wave 0A's single-core 510MHz kumisikidza inogona kushandiswa kudhidha 450K resolution hova pa4Hz (60Kp4) ukuwo maviri-core configuration achigona kushandiswa kudhidha 60Kp4 kana 120Kp8 hova.
Pamusoro peChips & Media, mamwe makambani akati wandei anopa marezinesi evhidhiyo processor ane AV1 rutsigiro. Semuyenzaniso, Inotsigira ese AV1 nemamwe mafomati ane mukurumbira anosanganisira H.264, H.265 (HEVC), VP9 uye JPEG. Ivo zvakare vanotsigira 4:2:0 uye 4:2:2 chroma subsampling yevatengi uye nyanzvi yekushandisa. Zvichakadaro, Allegro anoti zvigadziriso izvi zvakapihwa rezinesi nevekutanga-tier vatengesi vemidziyo uye zvichashandiswa mumichina yekupedzisira iyo ichaburitswa gore risati rapera.
Pamusoro pemarezinesi evhidhiyo processors, akati wandei evagadziri vakazivisa akagadzirira-akagadzirwa masisitimu-pa-chip ane AV1 tsigiro yeTV, set-yepamusoro mabhokisi, vatambi uye zvimwe zvakafanana. Amlogic inomira pakati pevamwe inotsigira sarudzo kusvika ku8Kp60, Broadcom ine 4Kp60 rutsigiro, Realtek (4Kp60) uye (8Kp60). Uye zvakare, LG yechitatu-chizvarwa Ξ±9 SoCs, iyo inosimbisa iyo kambani 8 2020K TVs, zvakare inotsigira AV1. Pamusoro pezvo, MediaTek yakazivisa iyo Dimensity 1000 mobile system-on-chip ine AV1 hardware decoder.
Sezvauri kuona, tsigiro yehardware decoding yeAV1 hova kubva kuvagadziri veanerezinesi evhidhiyo processors uye machipisi achiri ane mwero. Zvisinei, kupiwa kutsigirwa kwekodeki itsva kubva kumakambani akawanda etekinoroji (Apple, Amazon, AMD, ARM, Broadcom, Facebook, Google, Hulu, Intel, IBM, Microsoft, Netflix, NVIDIA, Realtek, Sigma nevamwe vakawanda), zvakakodzera kutarisira kutsigirwa kwehardware yeAV1 mumakore anotevera.
Zvekare, iyo AV1 vhidhiyo codec haidi kubhadharwa kwemari yerezenisi yekushandisa mamwe marezinesi enhengo dzeAlliance yeOpen Media (AOMedia). Kunyange zvazvo maitiro ekusanganisira patent muAV1 achida pfungwa dzenyanzvi mbiri kuti hazvityore kodzero dzemunhu wese, panogara paine ma patent trolls ane kodzero dzinogara dzichityorwa nemunhu wese.
Nokudaro, kambani yeLuxembourg Sisvel yakaunganidza dziva rezvibvumirano zve3000 kubva kumakambani akawanda anotsanangura matekinoroji akafanana neanoshandiswa muAV1 uye VP9. Kutanga kubva munaKurume gore rino, Sisvel vanoshuvira kupa marezenisi aya marezinesi eEuro 0,32 yemudziyo une chiratidziro (TV, smartphone, PC nezvimwe) uye ye0,11 β¬ yemudziyo usina kuratidza (chip, mutambi, mamaboard nezvimwe). Kunyangwe Sisvel asingaronge kubhadharisa mari yerezinesi yezviri mukati, zvinoita sekunge software inoonekwa seyakafanana nehardware, zvichireva kuti vanogadzira software vanofanirwa kubhadhara kambani.
Kunyangwe Sisvel asati atanga kutongwa kwemutemo nevagadziri ve Hardware uye software (uye haizotanga kusvika tekinoroji yave kushandiswa zvakanyanya), zviri pachena kuti zvinangwa zvakadaro zviripo. Nekudaro, AOMedia chengetedza vatori vechikamu muAV1 ecosystem, kunyangwe isingatsanangure sei.
Vagadziri veAV1 vanotarisira kuti ichave iri pese pese pamapuratifomu ese, saka tarisira kuti itsigirwe kwete chete nevakuru chip vagadziri, vagadziri vesoftware uye vanopa masevhisi, asiwo nevanotungamira vagadziri vemagetsi evatengi.
Nekudaro, hazvisi zvese zvakanakira AV1. Chekutanga, sezvo vazhinji vatambi, maTV uye set-yepamusoro mabhokisi haatsigire iyi codec, shanduko yeindasitiri yese kuenda kwairi ichaita zvishoma. Uye zvakare, zvakakosha kuyeuka kuti kune iyo post-8K nguva, vagadziri vari kugadzirira iyo AV2 codec. Chechipiri, zvinodikanwa zvepatent troll zvinonyatso dzikisa kufarira tekinoroji pakati pemamwe makambani.
Source: 3dnews.ru