{"id":139748,"date":"2025-07-27T23:11:57","date_gmt":"2025-07-27T21:11:57","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-svt-av1-3-1-0-kodirovshhika-dlya-formata-video-av1"},"modified":"2025-07-27T23:11:57","modified_gmt":"2025-07-27T21:11:57","slug":"vypusk-svt-av1-3-1-0-kodirovshhika-dlya-formata-video-av1","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/news\/vypusk-svt-av1-3-1-0-kodirovshhika-dlya-formata-video-av1","title":{"rendered":"Publikimi i SVT-AV1 3.1.0, kodues p\u00ebr formatin video AV1","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"
\u00cbsht\u00eb publikuar versioni 3.1.0 i bibliotek\u00ebs SVT-AV1 (Scalable Video Technology AV1), me implementime t\u00eb koduesit dhe dekoduesit p\u00ebr formatin e kodimit video AV1, t\u00eb p\u00ebrshpejtuara p\u00ebrmes zgjerimeve t\u00eb paralelizimit harduerik t\u00eb disponueshme n\u00eb procesor\u00ebt x86_64 dhe ARM. Projekti \u00ebsht\u00eb krijuar nga Intel n\u00eb partneritet me Netflix p\u00ebr t\u00eb arritur nj\u00eb nivel performance t\u00eb p\u00ebrshtatsh\u00ebm p\u00ebr transkodim video n\u00eb koh\u00eb reale dhe p\u00ebrdorim n\u00eb sh\u00ebrbime q\u00eb ofrojn\u00eb video sipas k\u00ebrkes\u00ebs (VOD). Aktualisht zhvillimi po vazhdon n\u00ebn kujdesin e aleanc\u00ebs Open Media (AOMedia), e cila mbik\u00ebqyr zhvillimin e formatit t\u00eb kodimit video AV1. M\u00eb par\u00eb, projekti zhvillohej n\u00eb kuad\u00ebr t\u00eb OpenVisualCloud, i cili zhvillon gjithashtu koduesit SVT-HEVC dhe SVT-VP9. Kodi shp\u00ebrndahet sipas licenc\u00ebs BSD. <\/p>\n
SVT-AV1 mund t\u00eb nd\u00ebrtohet p\u00ebr sisteme me \u00e7do arkitektur\u00eb p\u00ebr t\u00eb cilat ekziston nj\u00eb kompjuter q\u00eb mb\u00ebshtet standardin C99, por performanca m\u00eb e mir\u00eb arrihet n\u00eb sistemet x86_64, p\u00ebr t\u00eb cilat aplikohen optimizime assembly mbi baz\u00ebn e instrukcioneve SIMD (preferohet q\u00eb CPU t\u00eb mb\u00ebshtes\u00eb AVX2, por si minimum mjafton SSE2). Konsumi i memories varet nga numri i b\u00ebrthamave t\u00eb procesor\u00ebve t\u00eb angazhuar gjat\u00eb kodimit, t\u00eb cilat rregullohen me opsionin «—lp». P\u00ebr shkak t\u00eb kompleksitetit t\u00eb algoritmeve t\u00eb aplikuara n\u00eb AV1, kodimi i k\u00ebtij formati k\u00ebrkon ndjesh\u00ebm m\u00eb shum\u00eb burime se formatet e tjera, p\u00ebr shembull, koduesi standard nga projekti AV1 k\u00ebrkon n\u00eb 5721, 5869 dhe 658 her\u00eb m\u00eb shum\u00eb llogaritje krahasuar me koduesit x264 (profil «main»), x264 (profil «high») dhe libvpx-vp9. <\/p>\n
Nd\u00ebr sh\u00ebmbujt e ndryshimeve n\u00eb versionin e ri t\u00eb SVT-AV1: <\/p>\n
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\u00cbsht\u00eb b\u00ebr\u00eb optimizimi i kompromiseve cil\u00ebsi\/shpejt\u00ebsi p\u00ebr presetet q\u00eb vendosin nj\u00eb nivel t\u00eb mes\u00ebm dhe t\u00eb lart\u00eb t\u00eb cil\u00ebsis\u00eb. N\u00eb modalitetin «fast-decode 0» p\u00ebr presetet M1-M5, shpejt\u00ebsia \u00ebsht\u00eb rritur me 15-25% pa ndryshuar nivelin e cil\u00ebsis\u00eb. N\u00eb modalitetet fast-decode 1 dhe 2 p\u00ebr presetet M3-M7, shpejt\u00ebsia \u00ebsht\u00eb rritur me 15-20% pa ndryshuar nivelin e cil\u00ebsis\u00eb. P\u00ebr presetet M0 dhe MR, niveli i cil\u00ebsis\u00eb \u00ebsht\u00eb rritur rreth 1-1.5% duke u vler\u00ebsuar me metod\u00ebn BD-Rate (Bjontegaard-Delta).\n
\u00cbsht\u00eb p\u00ebrmir\u00ebsuar ndjesh\u00ebm funksionimi i regjimit t\u00eb kodimit me vones\u00eb t\u00eb ul\u00ebt (Low Delay).\n
Performanca n\u00eb regjimin RTC \u00ebsht\u00eb rritur me 5-10%.\n
N\u00eb sistemet ARM jan\u00eb p\u00ebrdorur optimizime t\u00eb bazuara n\u00eb zgjerimet Neon dhe SVE2, t\u00eb cilat kan\u00eb sjell\u00eb nj\u00eb rritje prej 5% t\u00eb performanc\u00ebs s\u00eb kodimit t\u00eb rrjedhave me rezolucion t\u00eb ul\u00ebt dhe thell\u00ebsi t\u00eb lart\u00eb ngjyrash.\n
Nga fork-u SVT-AV1-SPY \u00ebsht\u00eb transferuar implementimi i flagjeve «—chroma-qm-min» dhe «—chroma-qm-max», si dhe jan\u00eb transferuar p\u00ebrmir\u00ebsimet e lidhura me Variance Boost (implementimi i algoritmit t\u00eb kuantizimit adaptiv VAQ).\n
N\u00eb modalitetin RTC jan\u00eb aktivizuar preset-et M11 dhe M12. <\/ul>\n