Guqula AV1 kuya TIFF

Guqula Eyakho AV1 kuya TIFF imibhalo kalula

Khetha amafayela akho

*Amafayela asusiwe ngemva kwamahora angu-24

Guqula amafayela afinyelela ku-1 GB mahhala, abasebenzisi be-Pro bangaguqula amafayela afinyelela ku-100 GB; Bhalisa manje

Ukulayisha

Indlela yokuguqula AV1 kuya TIFF

Isinyathelo 1: Layisha eyakho AV1 amafayela usebenzisa inkinobho engenhla noma ngokuhudula bese uphonsa.

Isinyathelo 2: Chofoza inkinobho ethi 'Guqula' ukuze uqale ukuguqulwa.

Isinyathelo 3: Landa i-version yakho TIFF amafayela

AV1 kuya TIFF Imibuzo Evame Ukubuzwa Yokuguqulwa

Ngiyikhipha kanjani ifreyimu kusuka ku AV1 ividiyo njenge TIFF izithombe?

Layisha phezulu ihele AV1 futhi umguquli ubonisa isikhethi sefremu-sokuzisusa: ngayinye ifremu ye-Nth, amafremu ezikhathini ezicacisiwe, noma ifremu eyodwa ngomzuzu. Ifremu ngayinye ekhethiwe ikhodwe njengehele TIFF elilodwa futhi lihlukaniswe njenge-ZIP yokulayisha.

Ngabe isithombe esikhishwayo TIFF siphuma ngesinqumo esingakanani?

Ukulungiswa okufanayo njenge AV1 ividiyo — umsuka we-1080p ukhiqiza amafreyimu we-1920×1080 TIFF; umsuka we-4K ukhiqiza amafreyimu we-3840×2160 TIFF. Buyisela ubukhulu ngemuva kokukhishwa uma ufuna amathumbnail amancane.

Ingabe ngizokhipha yonke ifreyimu kusuka kuhele AV1 njenge TIFF?

Yebo, kodwa qaphela ngokubalwa kwefayela — ividiyo yemizuzu engu-1 nge-30fps ikhiqiza amafreyimu angu-1,800. Siyifaka ngokuzenzakalela kwi-ZIP archive. Ukusebenzisa ama-clip ade kakhulu sebenzisa "1 ngesekondi" (ifreyimu engu-60) noma ama-timestamps athile.

Ingabe izithombe TIFF zizogcina umbala AV1 olinganiselwe?

Yebo — umbala uqokwa nge-matrix efanayo esetshenziswa umsuka AV1 (BT.709 ku-HD, BT.2020 ku-4K HDR). Umsuka we-HDR u-tone-map ku-SDR uma ukhishwa ku-TIFF (i-PNG / JPG ayikwazi ukugcina ama-pixels we-HDR ngokujwayelekile).

Yini ubukhulu behele lwesiphequluli esisodwa esikhishwayo TIFF?

Kuya ngokuthi usinqumo kanye nokhetho lwe-codec. I-1080p PNG frame yi-2-5 MB; i-1080p JPG quality-85 frame yi-200-500 KB. Ukuphindaphinda nge-frame count ukuze usize i-ZIP — ku-extreme, yonke-frame extracting of a 10-min 1080p video at PNG is ~50 GB.

Ingabe i-TIFF ekhishwayo igcina ikhamera EXIF metadata?

I AV1 iqoqo aligcinanga i-EXIF yefreyimu ngayinye ngendlela ikhamera ehlala isebenza ngayo, ngakho i TIFF amafayela aphuma nge-EXIF engenalutho. Sifaka `creation_time` indawo ekhombisa i-source frame timestamp ukuze uphinde uhlanganise i-bundle.

Ingabe ithatha isikhathi esingakanani ukukhishwa kwefremu kusuka ku AV1 kuya ku TIFF?

Ukukhishwa kwefremu kushesha — 20-30% yosuku lokusuka ku-standard pipeline. Iminithi engu-5 AV1 → TIFF iqoqo liphele ngo-1 min ngaphandle kokulinganiselwa kwefremu, ngoba i-bottleneck yi-TIFF encoder, hhayi i-demuxer.

Ingabe ngizokhipha amafreyimu ezikhathini ezikhethekile kwi AV1 ividiyo?

Yebo - ukhetho oluthuthukisiwe luyamukela uhlu oluhlukaniswe nge-comma lwesikhathi sesikhathi (isibonelo `00:01:23,00:05:00,00:10:42`) futhi lukhiqiza ihele elinye TIFF ngesikhathi sesikhathi. Kuhle kuma-thumbnails wesigaba noma iziboniso zokubhekisa.

Ingabe i-AV1 yami yevidiyo ifihlakele ngesikhathi sokukhipha ifreyimu?

Yebo — imodeli yobumfihlo efanayo nezo zonke iziguqulo. Ividiyo yomthombo kanye nefreyimu ekhishwayo iphathwa abasebenza ngokuzimela futhi isuswa ngaphakathi kwemizuzu.

Kungani ama-TIFF amafreyimu ami akhishwa amnyama?

Kuyinto evamile ukushaya umsindo ovela emthonjeni AV1 (ikhamera ihamba lapho ifreyimu ithathwa). Zama ukukhetha ama-timestamps kusuka emibonweni ehlala njalo, noma khipha amafreyimu ambalwa azungeze futhi ukhethe oqinile. Ipayipi alikhiqizi uqinile.

Ingabe le thuluzi lixhasa ukukhishwa kwefremu eyodwa ngeshintsho lendawo yokubukeka?

Ayikho emfushaneni oyinhloko - sebenzisa "1 ngomzuzwana" njengenketho efana nokulinganiselwa, bese ukhetha ngokubonakalayo amafreyimu oshintsho lwesizinda. Umqolisi okhethekile wokuthola isizinda ukhona kwindlela yokuhamba.

Ingabe ngisebenzisa amafreyimu akhishwayo TIFF ngokuhweba?

Yebo, ngaphansi kwelayisense elawula umsuka AV1. Ushintsho lwefomethi alukho ubufakazi — sifaka akukho phawu lwamanzi futhi sicela akukho bufakazi belayisense ku TIFF.

AV1

AV1 yi-video codec engekho emthethweni eyenziwe ukunqoba i-H.264 ne-HEVC nge-bitrate efanayo, ngezindleko zokucofa okuncane.

TIFF

Amafayela e-TIFF asekela ukujula kwe-bit ephezulu kanye nokucindezelwa okungenakulahlekelwa, okulungele ukuthwebula izithombe zobungcweti kanye nokuphrinta.