Guqula MPEG kuya FLV

Guqula Eyakho MPEG kuya FLV imibhalo kalula

Khetha amafayela akho

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

Ukulayisha

Indlela yokuguqula MPEG kuya FLV

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

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

Isinyathelo 3: Landa i-version yakho FLV amafayela

MPEG kuya FLV Imibuzo Evame Ukubuzwa Yokuguqulwa

Ngiyiguqula kanjani i-MPEG ibe yi-FLV ngaphandle kokulahlekelwa umgangatho?

Layisha phezulu i-MPEG file futhi umguquli wethu ufaka i-CRF-based re-encode ebhekisa ku-visually-lossless FLV output (CRF 18 ngokuzenzakalela, ngezansi = enkulu / inhle). I-codec ikhethiwe ukufana ne-FLV container — H.264 / H.265 / VP9 / AV1 ngokufanele.

Yini i-codec esetshenziswa yi-FLV output?

Kuxhomekeka ku-container. Iphutha le-MP4 liyi-H.264 (usizo lokudlalwa olubanzi kakhulu); iphutha le-MKV liyi-H.265 le ~50% ihele elincane ngekhwalithi efanayo; iphutha le-WebM liyi-VP9 noma i-AV1 (ukusabalalisa kwe-web mahhala). Ungacima ukhetho lwe-codec ezinketho eziphezulu ngaphambi kokuba i-FLV iguqulwe.

Ingabe umsindo wami uzohlala MPEG kuya ku FLV?

Yebo — umsindo uphinde uhlukaniswe lapho MPEG kanye FLV bebelana nge-codec yomsindo, noma beguqulwa kabusha ku-AAC / Opus / Vorbis ngokuya ngokuthi FLV i Container ixhasa yini. Umsindo we-multi-track (umbono, izilimi ezishintshayo) ugcinwa ezimbonini ezixhasa (MKV, WebM, MP4).

Ingabe ngigcina ifreyimu yesiqalo isuka ku MPEG iye ku FLV?

Ngephutha i-framerate ayishintshwanga (MPEG 24fps ihlala 24fps ku-FLV). Uma ufuna ukuyishintsha (isibonelo, interlaced 29.97 kuya ku-progressive 30fps) i-framerate option iphatha 3:2 pulldown ne-deinterlacing ku-pass efanayo — akukho kuqala kokukhishwa kwekhodi okudingekayo.

Yini ushintsho lobukhulu befayela phakathi kwe-MPEG ne-FLV?

I-codec efanayo ephinda i-muxes (H.264 ku-MPEG kanye no-FLV) ikhiqiza ubukhulu obufana kakhulu. Ushintsho lwe-codec lungashintsha izinto ngokuphawulekayo: H.264 -> H.265 ngokuvamile ihlukanise ifayela ngengxenye ngekhwalithi efanayo yokubuka; H.264 -> VP9 ifana kakhulu; AV1 manje iyincane kakhulu ngezindleko zesikhathi sokuqoda esihamba kancane.

Ingabe ihele FLV lidlala ku-iPhone / Android / Smart TV?

MP4 / H.264 idlala kuwo wonke amadivayisi. MOV / H.264 idlala kumadivayisi we-Apple namanye ama-Smart TVs kodwa hhayi ku-Android edlule. MKV idinga i-VLC ku-iOS. I-WebM idlala kuma-browser kodwa hhayi kuma-Smart TV apps amaningi. I-"idivayisi ehambisanayo" esethelwe phambili ezindaweni eziphezulu zokukhethwa yenza i-codec / ibhokisi eliphephile kakhulu lenjongo yakho.

Ithatha isikhathi esingakanani ukushintsha ihele lehora elilodwa MPEG libe FLV?

Depends on the codec change. Same-codec re-mux: 30-60 seconds (no re-encode). Re-encode to a different codec: typically 0.3-0.7x source duration on our GPU pipeline, so a 1-hour MPEG -> FLV finishes in 18-40 minutes; AV1 re-encodes are 2-3x slower.

Yini isixazululo esiphezulu esixhaswe yi-MPEG kuya ku-FLV?

Kuze ku-8K (7680x4320) ku-Pro. I-Free ifinyelela ku-4K nge-file-size limit. I-HDR metadata (HDR10, Dolby Vision) igcinwa lapho i-MPEG ne-FLV i Containers ne-codecs zixhasa khona; ama-SDR sources ahlala e-SDR.

Ingabe i-MPEG video yami imfihlo ngesikhathi sokuguqulwa kwe-FLV?

Yebo — amafayela wevidiyo alayishwe phezulu aqhubekelwa phambili abasebenza ngokuzimela futhi asuswa ngaphakathi kwemizuzu yokuqedwa. Akukho kuhlolwa komuntu, akukho ukugcinwa ngaphandle kwefasitela elibhalwe phansi. Bona /privacy/.

Ingabe ngizoqhakaza noma ngizilungise ngesikhathi se-MPEG kuya ku-FLV?

Akunakwesinye isikhashana — sebenzisa /video-trim/ noma /video-cutter/ ukucisha i-MPEG kuqala, bese ufaka i-MPEG -> FLV ukuguquka. Ukuguquka-ke-ukuguqula kushesha kunakuphinde uguqule ihele lonke ukuze ugcine i-output.

Kungani ihele FLV limnyama uma kuqhathaniswa necebo MPEG?

Kuyinto ehlala i-bitrate-too-low setting. Ukunquma kabusha i-bitrate ephezulu MPEG ibe yi-bitrate ephansi FLV ku-CRF ejwayelekile kucindezela izimo ezinamandla zokuhamba kakhulu. Thola i-CRF ngezansi ku-16-18 (noma hlela i-bitrate ecacile) bese uqala kabusha ukubuyisela ukhwalithi.

Ingabe i-MPEG kuya ku-FLV converter isekela izihloko ezingezansi?

Yebo — amabhayisikobho afakwe ngaphansi kwesihloko (mov_text ku-MP4, SRT / ASS ku-MKV, WebVTT ku-WebM) agcinwa uma i-MPEG kanye ne-FLV izihlungi zixhasa ngazo. Amabhayisikobho afakwe ngaphakathi (ama-hardsub) adluliselwa ngokuzenzakalela ngoba yingxenye yedatha ye-pixel.