FLV Amathuluzi

Guqula FLV kuya futhi kusuka kumafomethi ahlukahlukene

Mayelana FLV

FLV yayiyibhokisi elingaphakathi kwevidiyo ye Flash kwi-web, manje idlulele kodwa ihlala isetshenziswa kakhulu ku-downloads ne-archives.

Ukusetshenziswa Okuvamile

Flash video
Online streaming
Legacy web video

FLV Imibuzo Evame Ukubuzwa Yokuguqulwa

Yini ihele FLV?

FLV (Flash Video) is a container format used for delivering video content online.

I-Flash ikhubaziwe eminyakeni edlule — ingadlala kanjani ifayela FLV?

Ihele lilungile; umdlali uhambe. FLV igcina ividiyo ejwayelekile ecindezelwe kanye nesandi, ngakho-ke ithuluzi ledesktop elikhohlisa i-browser plugin story lifunda ngaphandle kwezinkinga. Okungekhona manje yinoma iyiphi indlela ejwayelekile yokuvula enye — akukho i-browser, akukho ifoni, akukho TV. Ukushintshana akuyona ukunakekelwa okukhethwa kukho lapha, kuyindlela eyodwa kuphela isithombe sihlala sibonakale. Akukho isiphequluli, ifoni noma i-TV ekhona engakwazi ukudlala i-FLV — noma yini ekhona kule bhokisi kumele ihunyushwe ngaphandle ukuze ihlale ibonakale.

Ingabe FLV ifomethi efile?

Njengefomethi yokuthumela, yebo — i-ecosystem eyenza isebenze ikhubazekile, futhi akukho okuzokuvumela ukuthi uvule ifayela ngalo namuhla okuxhasa lokhu. Njengendawo yokugcina incwadi iphila kakhulu: inani elikhulu lezinto lihlala likhona. Ukushintshana akuyona ukuguqulwa okusha ngenxa yenhloso yayo; kuyinto ehlukile phakathi kwevidiyo ongayibona nevidiyo ongayenza.

Kungani okuqukethwe kwewebhu kuthunyelwe njenge FLV?

Ngokuba ifakwe ngokukhethekile le misebenzi: amafayela amancane, ukuqala ngokushesha, akukho plug-in futhi akukho layisense lokukhathazeka. Lokhu kwenza kube ngcono ekunikezelweni futhi kungaphawuleka nganoma yini enye - amathuluzi okuhlela, ama-gallery wefoni namadivayisi adala ahlala ekhohlwa. Ukushintshana kufomethi yokusetshenziswa okujwayelekile kwenza ukuthi okuqukethwe okuthunyelwe kusebenziseke ngaphandle kwe-web. FLV's low per-packet overhead yenze it okungcono e streaming phezu ukuxhumana unreliable yesikhathi sayo, futhi amafayela amakhulu yayo akhona.

Kungani isiphequluli sami singadlala ihele FLV?

Amabhuleki athumela ama-decoders kuluhlu oluncane lwefomethi, futhi FLV ayikho kulo — ilayisense, i-codec ehlukene evumela, noma nje ubudala bayo bugcina bungaphandle. Ihele alilahlekile futhi umdlali wedesktop uzovula, kodwa akukho okwenziwayo kukhasi kuzokwenza ibhuleki liyibonise. Ukushintsha ukuguqula kube nendawo yokugcinwa ye-web-native kuyindlela ethembekile kuphela yokudlala ngaphakathi.

Kungani i-FLV idlala ngokugcizelela noma isebenza ngokufudumele kuma-machines adala?

Ngenxa yokuthi i-software isebenzisa i-decode. Ama-hardware video decoders afaka kuphela uhlu oluqinile lwefomethi, futhi FLV ungaphandle kwayo kumadivayisi amaningi, ngakho-ke yonke ifreyimu ivuselelwa kabusha yi-CPU endaweni. Kudesktop yamanje elahlekile; ku-smartphone, i-laptop edala noma i-smart TV ivela njengefreyimu elahlekile, umsindo we-fan nebhethri elilahlekile. Ukushintsha kufomethi exhaswe yi-hardware kususa izinkinga zonke. I-FLV ivame ukuphatha i-Sorrenson Spark noma i-H.264 video ne-MP3 noma i-AAC audio, efakwe kufomethi yokuhamba eyenziwe nge-RTMP delivery.

Ingabe izihloko ezingezansi zihamba lapho kuhele FLV?

Ngakwesokudla, noma ngaphakathi kwesithombe. FLV ayinaso isingeniso sesihloko sesihloko, ngakho izinketho ezimbili yi-sidecar.srt ifayela umdlali efaka ngakwesokudla kwevidiyo, noma ukushaya umbhalo emafreyimu ngesikhathi sokucindezela kabusha. I-sidecar igcina isingeniso sesihloko esihleliwe futhi esishintshayo kodwa ihamba njengefayela lesithathu elilula ukulahleka; ukushaya ngaphakathi kuqhubeka noma yikuphi ukudluliswa kodwa akukwazi ukuvalwa ngemuva.

Kungani i-audio track eyodwa kuphela ehlala e FLV yami?

Ngenxa yokuthi lokhu konke ifomu liyithatha ngokunethezeka. Izinhlamvu zomsindo ezingeziwe zingabhalwa ku FLV, kodwa ukuxhaswa kokudlala ngemuva kokuqala akulingani kahle kakhulu ukuthi amathuluzi amaningi agcina kuphela elinye futhi asuse ezinye. Uma umsuka unesihloko noma ulwimi lwesibili, khipha lezi ukuze uhlukanise amafayela omsindo ngaphandle kokuthembela kuwo kubhokisi elifihlayo.

Ingabe ngidinga isofthiwe ye-Adobe ukuvula i-FLV?

Ukufunda, cha — ifomu libhalwe futhi lisetshenziswa ngokubanzi, futhi kunezithuluzi eziningi ezivula. Ukusebenza okuphelele, isicelo esiqalayo sihlala siyisibonelo sokusetshenziswa, futhi amafayela abhekene nezici zayo ezikhethekile angahluka kwezinye izindawo. Ukuguquka lapha akudingi ilayisense ye-Adobe futhi akukho kufaka okungaphakathi. FLV yi-Flash Video container ephethe yonke i-web video kusukela ngo-2003 kuze kube yilapho i-Flash ikhubazekile ekugcineni kuka-2020.

Ingabe ukusebenzisa FLV kuthatha ilayisense lepatenti?

Akunakho okukudingayo. Ama-codecs ahlobene ahlobene ne-patent pools, futhi ilayisense libekwe ngabantu abathumela ama-decoders — ifoni, i-browser, i-operating system — isikhathi eside ngaphambi kokuba ihele lifike kuwe. Lokhu kusho ukuthi ifomu likhona kuwo wonke amahardware futhi kungani ama-royalty-free alternatives akhona, futhi ashintshanga noma yini mayelana nokushintshana kwefayela oline.

Ingabe umsindo ku FLV uphele esigabeni se-stereo?

Kuzokwenziwa, yebo. Ifomethi yacaciswa ngasinye noma izixhumanisi ezimbili, ngakho-ke umxhuzulane obhekene nawo kufanele uhlukaniswe ngezansi ku-stereo ukuze ulungele — okulungile kuma-headphones nama-speakers wefoni futhi kulungile kunoma yini ehambayo e-home cinema receiver. Uma umsuka une-multichannel mix efanele ukugcinwa, guqula ube yibhokisi eliphatha le nto ngaphandle kokushiya i-downmix ikwenzeke ngokuzimela.

Ingabe ngingenza ngiphinde ngibize isiqephu endaweni yokushintsha FLV?

Kunzima kakhulu, futhi kufanelekile ukuqonda ukuthi kungani: isithonjana siyisihloko, ngenkathi ama-bytes ngaphakathi kufakwe ngefomethi eyodwa ekhethekile. Ukushintsha igama kwenza ihele igama lakhe lithembisa okuthile okuqukethwe kwayo akusho ukunikela, futhi noma yini evula ihele noma liyiphoqa noma liyifunda kabi. Ukuphela kwephutha elincane yifomethi ezimbili ezikhona ngokusemthethweni ibhokisi elifanayo ngaphansi kwezinhlamvu ezahlukene — futhi ngisho lapho ukuphinda ubhale kahle kuphephile kunalokho ukushintsha igama.