MPG → FLV

Sinthani Yanu MPG ku FLV mafayilo mosavuta

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Kukweza

Momwe mungasinthire MPG ku FLV

Gawo 1: Kwezani yanu MPG mafayilo pogwiritsa ntchito batani lomwe lili pamwambapa kapena pokoka ndi kugwetsa.

Gawo 2: Dinani batani la 'Convert' kuti muyambe kusintha.

Gawo 3: Tsitsani pulogalamu yanu yosinthidwa FLV mafayilo

MPG ku FLV Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu

Kodi ndingasinthire bwanji MPG kupita ku FLV popanda kuwononga mtundu wa kanema?

Ikani fayilo yanu ya MPG ndipo wosinthira amayendetsa CRF-based re-encode yoyang'anira kutulutsa kwa FLV (CRF 18 mosalekeza, matanthauzo ochepa = fayilo yayikulu / yapamwamba). Codec imasankhidwa kuti igwirizane ndi FLV kontena - H.264 kwa MP4 yokhala ndi kukula kwakukulu, H.265 kwa MKV yokhala ndi kukula kwakukulu, VP9 kwa WebM, AV1 kwa ma pipelines atsopano. Zina mwa zinthuzi ndi MPEG-1 kapena MPEG-2 kanema ndi MP2 audio; muxing ndi GOP chilengedwe ndi ofanana ndi.mpeg fayilo. FLV nthawi zambiri ali Sorenson Spark kapena H.264 kanema ndi MP3 kapena AAC audio, wopangidwa mu stream format anapanga kwa RTMP kutumiza.

Mavidiyo anga a MPG amasonyeza ma liwiro a comb pa msewu - kodi izi zidzabweretsa ku FLV?

Idzachitika ngati simukusintha, ndipo MPG zolemba nthawi zambiri zimasinthidwa chifukwa mtunduwo umachokera kunthawi ya mafilimu ndi DVD. Ma frame ophatikizidwa amasunga madera awiri apakati omwe amatenga masentimita asanu ndi awiri; pafoni kapena monitor ya progressive-scan yomwe imawerenga ngati chotchinga chozungulira pa chilichonse chomwe chimayenda. Ikani njira yosinthira ndipo encoder imapanga madera onse m'ma frame opitilira muyeso pambuyo polemba FLV. MPG ndi chimodzimodzi MPEG pulogalamu mtsinje monga.mpeg - atatu-alemba kuwonjezeka ndi DOS-era kugwa, si mtundu wina.

My MPG ili ndi maudindo ambiri - kodi onse amapita ku FLV?

Sizotsimikizika. MPG imasunga ma audio ambiri monga ma tracks achiwiri, koma FLV kusewera kuthandizira pambuyo pa gawo loyamba ndilopanda malire, kotero ambiri osewera adzawonetsa imodzi. Sankhani gawo lomwe mukufuna poyamba; ena amaphunzitsidwa bwino ku mafayilo awo oyambirira kuposa kuchoka m'chipinda chokhala ndi ma CD omwe amawateteza. MPG ndi kuwonjezeka DVD authoring mapulogalamu, older camcorders ndi kufalitsa ingest zipangizo kuzindikira, kotero kuti imakhala zothandiza kwa iwo ma pipelines. No msakatuli watsopano, foni kapena TV angagwiritse ntchito FLV - chilichonse choterobe mu bokosi lachitsulo ayenera kunyamula kunja kwa izo kuti azikhala watchable.

Kodi FLV idzasewera bwino pafoni kapena pa TV?

Sichingakhale choncho. MPG imasinthidwa ndi silicon yoperekedwa pafoni, ma tablet ndi ma TV, chifukwa chake imasewera popanda kutulutsa batri. FLV nthawi zambiri imabwerera ku decoding ya mapulogalamu pa hardware yomweyo - kulemera kwa CPU, chipangizo chotentha, ndi ma frame osunthika pa 4K. Kwa chipangizo chofunikira, MPG ndi chotetezeka chokhalamo.

Kodi chimachitika ndi 5.1 surround audio pamene MPG ikusinthidwa ku FLV?

Idzalowetsedwa ku stereo, chifukwa FLV siyimakhala ndi njira yodalirika ya multichannel. Kulowetsedwa kumagwiritsa ntchito ITU standard coefficients kuti mauthenga m'malo ozungulira azitha kumvetsedwa bwino ndipo ma surrounds amafika pamalo otsika kuposa kugwa. Chomwecho chilichonse chomwe chimadalirika pa malo osiyana a ma channels chidzatha pambuyo pake.

Kodi pali chinthu chosintha pakati pa mafomu awiri oyambirira monga MPG ndi FLV?

Ngati chinthu chokhacho cha zida chikufunikira kukwaniritsa zolingazo. Mafomu awiriwa amachokera kunthawi yomweyo ya H.264, kotero palibe kusintha komwe kumagula chitetezo, kudalirika kapena kutsimikizika kwatsogolo - kumagula kugwirizana ndi chipangizo chimodzi chokha. Ngati cholinga ndicho kuteteza zithunzi zogwiritsa ntchito nthawi yayitali, kusintha kwa kontena latsopano, osati kumbuyo. MPG amalandira zonse MPEG-2 kuletsa - heavy bitrate, interlacing, palibe soft subtitle - kuphatikizapo kusokonezeka kwa awiri zowonjezera kwa mtundu wina.

Kodi ndi codec iti ya kanema yomwe FLV imagwiritsa ntchito?

Izi zimadalira pa FLV kontena. MP4 defaults kuti H.264 kwa kusewera kwamphamvu kwambiri pafoni, masamba, ndi Smart TVs. MKV defaults kuti H.265 / HEVC kwa pafupifupi theka la kukula kwa fayilo pa quality yofanana. WebM defaults kuti VP9. Zosankha zazikulu zimasonyeza kusankha kodek ngati mukufuna kuchotsa. FLV ndi Flash Video Container yomwe idabweretsa zonse zomwe zili pa intaneti kuchokera pa 2003 mpaka pomwe Flash idalephera pamapeto pa 2020.

Kodi nyimbo yanga ya audio idzapulumuka kusinthidwa kwa MPG kupita ku FLV?

Ndiko. Ngati MPG ndi FLV amagwiritsa ntchito codec ya audio (mwachitsanzo, onse amagwiritsa ntchito AAC), audio imasinthidwanso popanda kusinthidwanso - bit-identical. Ngati codecs ndi osiyana, audio imasinthidwanso kukhala AAC / Opus / Vorbis malinga ndi zomwe FLV zimathandizira. Audio yokhala ndi ma track ambiri (mawu ofotokoza, mabungwe osiyanasiyana) imasungidwa.

Kodi ndingapeze bwanji mitengo yazithunzi yoyamba pamene ndisintha MPG kupita ku FLV?

Mwa default yeah - 24fps MPG imakhala 24fps mu FLV; 60fps MPG imakhala 60fps. Ngati mukufuna kusintha kuchuluka (mwachitsanzo, kulumikizana 29.97 → kupitilira 30, kapena 60 → 30 kwa kutsitsa), kusankha kwa framerate kumatha kuwongolera 3: 2 kutsitsa, kuchotsa, ndi kuphatikizira ma frame mu gawo limodzi lokha la encoding.

Kodi kukula kwa fayilo idzasintha bwanji kuchokera ku MPG kupita ku FLV?

Kodikodi yofananayo imasintha (MPG H.264 → FLV H.264 yomwe isintha kontena): kukula kwake kuli pafupifupi chimodzimodzi. Kusintha kwa codec kungayambitse kusinthika kwambiri: H.264 → H.265 nthawi zambiri kumadula fayiloyo panthawi yomweyo; VP9 ndi yofanana; AV1 imadula 20-30% koma ndi yocheperako.

Kodi fayilo ya FLV idzasewera pa iPhone, Android, ndi Smart TVs?

MP4 / H.264 imasewera mosalekeza pazogwiritsa ntchito zonse zamakono. MOV / H.264 imasewera pazogwiritsa ntchito za Apple ndi ma TV ambiri koma si nthawi zonse pa Android oyambirira. MKV iyenera VLC pa iOS. WebM ndi msakatuli woyamba. Zosankha zopitilira muyeso zimaphatikizapo "kugwirizana kwa chipangizo" choyamba chomwe chimasankha chotetezeka kwambiri FLV codec / chidebe chazofunikira zanu. FLV ya pansi pa-packet overhead anachititsa izo zabwino pa streaming pa unreliable kugwirizana wa nthawi yake, ndi mabuku akuluakulu a izobe zilipo.

Kodi ndi nthawi yayitali bwanji kusinthira kanema wa 1-hour MPG kuti FLV?

Kusintha kwa codec yomweyo ndi nthawi ya 30 mpaka 60 kwa fayilo ya 1-hour. Kodidi yokhala ndi codec imagwira ntchito panthawi ya 0.3-0.7x yochokera pa GPU yathu, kotero kuti 1-hour MPG → FLV imatha m'maola 18-40 malinga ndi resolution ndi codec yoyenera.

MPG

MPG ndi fayilo yowonjezera ya mafayilo amakanema a MPEG-1 kapena MPEG-2. Nthawi zambiri amagwiritsidwa ntchito posewera ndi kugawa makanema.

FLV

FLV (Kung'anima Video) ndi kanema chidebe mtundu kupanga ndi Adobe. Imagwiritsidwa ntchito posaka mavidiyo pa intaneti ndipo imathandizidwa ndi Adobe Flash Player.