WMV Amathuluzi

Guqula WMV kuya futhi kusuka kumafomethi ahlukahlukene

Mayelana WMV

WMV yividiyo yeMicrosoft evela ku Windows Media era, encane ngesikhathi sayo kodwa ebuhlungu nganoma yini ngaphandle kweWindows.

Ukusetshenziswa Okuvamile

Windows video
Streaming media
Legacy video

WMV Imibuzo Evame Ukubuzwa Yokuguqulwa

Yini ihele WMV?

WMV (Windows Media Video) is a video codec and container format developed by Microsoft.

Yini okungaphakathi kwehele WMV?

U-ASF stream — Microsoft's Advanced Systems Format, ifakwe eduze kwenethiwekhi yokusakaza kanye nokulawula malungelo edijithali ngaphezu kokuhlela. U-payload uvame ukuba yi-Microsoft's own video and audio codecs, okuyisisu senkinga yosayizi: ibhokisi lifundeka kuphi naphi, futhi okuqukethwe kulo ku-decodeable kuphi naphi ngaphandle kweWindows. WMV ithatha Microsoft VC-1 noma WMV3 video nge WMA audio - codecs cishe akukho ngaphandle Windows decodes natively.

Kungani umshicileli wami wesithombe egcina i WMV?

Ngenxa yokuthi iyifomethi i-platform yo Recorder ikhophi ngokusemthethweni, ngakho ukuqoqa kuthatha imali encane ngaphandle kokuqhubekela phambili uma imishini isebenza ukwenza okuthile. Kuyinketho efanele ngesikhathi so Recording futhi kunzima ngemuva kwalokho - ihele lidinga ukushintshwa ngaphambi kokuba lihlukaniswe, lilungiswe noma lifakwe kuphi ngaphandle kwendlela eyenza ngayo. WMV Windows Media Video, Microsoft ASF-based format kusuka Windows XP isikhathi.

Kungani isiphequluli sami singadlala ihele WMV?

Amabhuleki athumela ama-decoders kuluhlu oluncane lwefomethi, futhi WMV 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. WMV ngokuphumelelayo iphele efile: macOS, iOS, Android kanye nesipiliyoni ngasinye idinga isithathu-party decoders, futhi ezinye WMV amafayela zithwala DRM ukuthi akufanele kushintshwe ngaso sonke isikhathi.

Kungani i-WMV yami ibonisa ama-comb lines nganoma yini ehambayo?

Ngenxa yokuthi i-interlaced. Izinto ezingaphakathi kulolu hlobo zivela emidlalweni ye-DVD, lapho ifreyimu ngayinye igcinwa njengezindawo ezimbili ezingu-half-height ezithathwe ngengxenye engu-50 yesikhathi. Isikrini esiqhubekayo sibonisa zombili ngasikhathi sinye, ngakho-ke ukuhamba phakathi kwezimo ezimbili kubukeka sengathi kuzoba kuphindwe kabili. Ukususa i-interlacing kushintsho kuveza izimo zibe amafreyimu aphelele futhi i-artefact iphela.

Kungani i-WMV 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 WMV 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.

Ingabe kufanele ngigcine amafayela amasha njenge WMV?

Uma nje kukhona okuthile okudingayo. Ifomethi ivuliwe, futhi akukho sidingo sokushintsha ingobo yomlando ongeke ukwenze kube nzima, kodwa akuyona indawo lapho ithuluzi noma umphumela uhamba khona. Kunoma yini entsha, ifomethi yamanje ayidingi lutho olungeziwe futhi ivimbela ukulandelana kwesifundo seminyaka emincane kusukela manje.

Ingabe izihloko ezingezansi zihamba lapho kuhele WMV?

Ngakwesokudla, noma ngaphakathi kwesithombe. WMV 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 WMV yami?

Ngenxa yokuthi lokhu konke ifomu liyithatha ngokunethezeka. Izinhlamvu zomsindo ezingeziwe zingabhalwa ku WMV, 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.

Kungani i-WMV isebenza kahle kuphela kumawindi?

Ngenxa yokuthi isitoreji siyinhlanganisela elula. WMV yacaciswa ngamaphuzu athile akhethekile eMicrosoft, futhi akukho okuningi ngaphandle kweWindows okuzokhipha umbhalo obhalwe phansi - ngakho ihele livula, likhombisa isikhathi sayo, futhi likhiqiza isithombe noma umsindo. Ukufakela iphakethe le-codec kuyisinqumo esidala futhi esibucayi; ukushintsha umthwalo wezinto eziphilayo zibe yizinto eziphilayo ezikhona kunoma iyiphi i-platform.

Ingabe ukusebenzisa WMV 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 ngingenza ngiphinde ngibize isiqephu endaweni yokushintsha WMV?

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.