{"id":155331,"date":"2026-01-26T17:11:55","date_gmt":"2026-01-26T15:11:55","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-svt-av1-4-0-kodirovshhika-dlya-formata-video-av1"},"modified":"2026-01-26T17:11:55","modified_gmt":"2026-01-26T15:11:55","slug":"vypusk-svt-av1-4-0-kodirovshhika-dlya-formata-video-av1","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/novosti-interneta\/vypusk-svt-av1-4-0-kodirovshhika-dlya-formata-video-av1","title":{"rendered":"L\u00ebshimi i SVT-AV1 4.0, koduesi p\u00ebr formatin e videos AV1","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"
K\u00ebtu \u00ebsht\u00eb publikuar versioni i bibliotek\u00ebs SVT-AV1 4.0.0 (Tehnologjia e Videove t\u00eb Shkallueshme AV1) me implementime t\u00eb encoder-it dhe decoder-it p\u00ebr formatin e kodimit t\u00eb videos AV1, p\u00ebr t\u00eb cilin jan\u00eb p\u00ebrdorur zgjerimet e pranishme n\u00eb procesor\u00ebt x86_64 dhe ARM p\u00ebr paralelizmin harduerik t\u00eb llogaritjeve. Projekti \u00ebsht\u00eb zhvilluar nga Intel n\u00eb partneritet me Netflix me q\u00ebllim q\u00eb t\u00eb arrihet nj\u00eb nivel performanc\u00eb q\u00eb \u00ebsht\u00eb i pranuesh\u00ebm p\u00ebr rikodimin n\u00eb koh\u00eb reale t\u00eb videove dhe p\u00ebrdorimin n\u00eb sh\u00ebrbimet q\u00eb ofrojn\u00eb video n\u00eb k\u00ebrkes\u00eb (VOD). N\u00eb k\u00ebt\u00eb moment, zhvillimi po kryhet n\u00ebn ombrell\u00ebn e aleanc\u00ebs Open Media (AOMedia), e cila mbik\u00ebqyr zhvillimin e formatit t\u00eb kodimit t\u00eb videos AV1. M\u00eb par\u00eb, projekti \u00ebsht\u00eb zhvilluar brenda projektit OpenVisualCloud, i cili gjithashtu zhvillon encoder-at SVT-HEVC dhe SVT-VP9. Kodi shp\u00ebrndahet n\u00ebn licenc\u00ebn BSD. <\/p>\n
SVT-AV1 mund t\u00eb kompozohet p\u00ebr sisteme bazuar n\u00eb \u00e7do arkitektur\u00eb p\u00ebr t\u00eb cilat ekziston nj\u00eb kompilator me mb\u00ebshtetje p\u00ebr standardin C99, por performanca m\u00eb e mir\u00eb arrihet n\u00eb sistemet x86_64, p\u00ebr t\u00eb cilat aplikohen optimizimet n\u00eb assembler t\u00eb bazuara n\u00eb instrukcionet SIMD (preferohet q\u00eb procesori t\u00eb ket\u00eb mb\u00ebshtetje p\u00ebr AVX2, por si minimum mjafton edhe SSE2). Konsumi i memories varet nga numri i b\u00ebrthamave t\u00eb procesorit t\u00eb angazhuara n\u00eb kodim, t\u00eb kontrolluara nga opsioni «—lp». P\u00ebr shkak t\u00eb kompleksitetit t\u00eb algoritmeve t\u00eb p\u00ebrdorura n\u00eb AV1, kodimi i k\u00ebtij formati k\u00ebrkon ndjesh\u00ebm m\u00eb shum\u00eb resurse se formatet e tjera, p\u00ebr shembull, koduesi standard nga projekti AV1 k\u00ebrkon 5721, 5869 dhe 658 her\u00eb m\u00eb shum\u00eb llogaritje n\u00eb krahasim me koduesit x264 (profil «main»), x264 (profil «high») dhe libvpx-vp9. <\/p>\n
Nd\u00ebr ndryshimet n\u00eb versionin e ri t\u00eb SVT-AV1: <\/p>\n
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Optimizimi i m\u00ebnyrave t\u00eb kodimit t\u00eb kornizave individuale dhe imazheve n\u00eb formatin AVIF \u00ebsht\u00eb realizuar. P\u00ebr presets M0-M11, me aktivizimin e parametrave MS-SSIM (—tune 4), \u00ebsht\u00eb v\u00ebn\u00eb re nj\u00eb rritje e shpejt\u00ebsis\u00eb s\u00eb kodimit me 5-8 her\u00eb duke ruajtur nivelin e cil\u00ebsis\u00eb. N\u00eb vler\u00ebsimin p\u00ebrmes metod\u00ebs BD-Rate (Bjontegaard-Delta) \u00ebsht\u00eb v\u00ebn\u00eb re nj\u00eb rritje e efikasitetit t\u00eb kompresimit me 5-8% me t\u00eb nj\u00ebjtin nivel kompleksiteti.\n
Optimizimi i kompromiseve mes cil\u00ebsis\u00eb dhe shpejt\u00ebsis\u00eb n\u00eb kodimin n\u00eb modalitetin «—rtc» (Komunikime n\u00eb Koha Reale) \u00ebsht\u00eb realizuar. P\u00ebr presets M7-M11, \u00ebsht\u00eb v\u00ebn\u00eb re nj\u00eb rritje e shpejt\u00ebsis\u00eb me 5-15% duke ruajtur nivelet e cil\u00ebsis\u00eb.\n
Optimizimi i kompromiseve mes cil\u00ebsis\u00eb dhe shpejt\u00ebsis\u00eb n\u00eb kodimin n\u00eb modalitetin me qasje t\u00eb rastit (Random Access) \u00ebsht\u00eb realizuar. P\u00ebr presets M0-M7, \u00ebsht\u00eb v\u00ebn\u00eb re nj\u00eb p\u00ebrshpejtim me 10-25% pa humbje cil\u00ebsie me p\u00ebrdorimin e opsionit «—fast-decode=1|2).\n
N\u00eb sistemet ARM jan\u00eb aktivizuar optimizime shtes\u00eb duke u bazuar n\u00eb zgjerimet Neon dhe SVE2, t\u00eb cilat lejuan nj\u00eb p\u00ebrmir\u00ebsim prej 5% n\u00eb performanc\u00ebn e kodimit t\u00eb rrjedhave n\u00eb rezolucion t\u00eb ul\u00ebt me thell\u00ebsi ngjyre t\u00eb lart\u00eb.\n
Nga forka SVT-AV1-PSY, p\u00ebr t\u00eb cil\u00ebn mb\u00ebshtetja \u00ebsht\u00eb ndalur, \u00ebsht\u00eb p\u00ebrfunduar transferimi i mund\u00ebsive t\u00eb zgjeruara p\u00ebr modalitetin e cil\u00ebsis\u00eb s\u00eb lart\u00eb vizuale, i cili aktivizohet me p\u00ebrdorimin e konfigurimeve «—tune 0» (VQ, Cil\u00ebsia e Videos) p\u00ebr video dhe «—tune 3» (IQ, Cil\u00ebsia e Imazhit) p\u00ebr imazhet Avif.\n
\u00cbsht\u00eb implementuar metoda e modelimit psikovizual AC Bias, e cila p\u00ebrmir\u00ebson ruajtjen e detajeve dhe zhurm\u00ebs nga sensori i kamer\u00ebs.\n
\u00cbsht\u00eb p\u00ebrmir\u00ebsuar mb\u00ebshtetja p\u00ebr S-kornizat (Switch Frames), t\u00eb cilat p\u00ebrdoren gjat\u00eb kalimit midis rrjedhave t\u00eb ndryshme cil\u00ebsie. \u00cbsht\u00eb shtuar mb\u00ebshtetje p\u00ebr S-kornizat n\u00eb opsionet e konfigurimit t\u00eb kodimit (QP, Parametri i Kodimit) dhe renditja e dekodimit.\n
\u00cbsht\u00eb shtuar mund\u00ebsia e p\u00ebrdorimit t\u00eb modaliteteve IQ (Cil\u00ebsia e Imazhit) dhe MS-SSIM (Indeksi i Ngjashm\u00ebris\u00eb Strukturale n\u00eb Shkall\u00eb t\u00eb Shum\u00ebfisht\u00eb) gjat\u00eb kodimit t\u00eb imazheve dhe kornizave t\u00eb ve\u00e7anta.\n