VOB Isiguquli

Tshintsha VOB kuya futhi kusuka kumafomethi ahlukahlukene

Mayelana VOB

I-VOB iyibhokisi levidiyo le-DVD, equkethe i-MPEG-2 video, umsindo, kanye nesihloko, futhi ingakhonjiswa.

Ukusetshenziswa Okuvamile

DVD video
Movie storage
Disc authoring

VOB Ukushintsha

Yini ihele VOB?

VOB (Video Object) is the container format for DVD-Video media.

Yini i-MPEG program stream, nokuthi kungani ifayela lami liyi-one?

I-multiplex eyenziwe ukuba i-decode yi-hardware esebenza ngokuqinile ngesikhathi sangempela, ayikwazi ukuhlela kwikhompyutha. Ama-packets omsindo nevidiyo axhunywe nge-time markers ukuze ibhokisi eliset-top likwazi ukuqala ukudlala kusuka kuwo wonke ama-stream, ngaphandle kwe-index futhi ngaphandle kokucindezela ihele lonke. Lo mkhiqizo uyini isizathu sokuthi VOB iqukethe ukudlala ku-hardware edala ngokugcwele futhi ikhohlisa ama-software amanje ngokuvamile. I-VOB iqukethe i-MPEG-2 video, AC-3 noma umsindo we-PCM, kanye ne-DVD subpicture subtitle streams, ihlukaniswe ibe yi-1 GB segments yi-DVD spec.

Kungani konke okuvela kwidiski kuphuma njenge VOB?

Ngenxa yokuthi ifomu lediski lichaza lokhu. Ividiyo, umsindo kanye nokuzulazula ku-optical disk kwabekwa ngokujwayelekile ngale ngxenyekazi efanele ukuze umdlali osebenza kahle oqinile angayifaka ngaphandle kwesoftware. Noma yini ekhishwa ku-disk ngakho ifika kuyo, igcwele ngemigomo yesikhathi — ukuxhuma, amaphesenti anzima wobukhulu kanye nokuhlukaniswa kwefayela kufakwe. VOB yividiyo equkethwe okutholakalayo kwifolda VIDEO_TS ngayinye ye-DVD — i-MPEG-2 izinhlelo ezihambayo ne-DVD-ekhethekile yokubuka idatha engeziwe.

Kungani isiphequluli sami singadlala ihele VOB?

Amabhuleki athumela ama-decoders kuluhlu oluncane lwefomethi, futhi VOB 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. VOB ihlukaniswe phakathi kwefayela, ingase ibe CSS-encrypted, futhi ithwale ukuzula iphakethe elikhohlisa abadlali abadingayo.

Kungani i-VOB 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 esisodwa. 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 kahle.

Kungani ama-VOB am ashicilelwe ahlukaniswa ngama-parts amanani?

I-format-level ceiling, hhayi iphutha ku-recorder. VOB ine-file-single-limit esebenzayo esebenza kahle ehamba phambili noma i-bitrate-high material, ngakho-ke isofthiwe yokuqapha ihlukanise ukurekhodwa ngaphezu kokuletha ihele alikwaziyo ukulibonisa. Ukudlulisa ku-container ngaphandle komkhawulo onjalo kwenza ama-pieces aphinde axhunywe kuvidiyo eyodwa eqhubekayo, okuvame ukuba yisizathu esingokoqobo abantu abaguqula le-format.

Ingabe VOB izodlala kufoni noma TV ngaphandle kokushaya ibhayisikili?

Ngokuvamile, yebo, ngoba ama-chips efonini, ama-tablets nama-televisions afaka ikhophi le-payload e-silicon ekhethekile, hhayi kwi-processor eyinhloko. Lokhu kuyinto ehlukile phakathi kwevidiyo edlala i-cool ngehora elilodwa nelinye elifaka i-heat device futhi liyihlanze imizuzu emashumi amane. lapho ifomu lihla khona, i-app ixhasa i-app, hhayi uku-decode — i-codec iyilungile, i-wrapper yilokho i-gallery app ingakanani.

Ingabe kufanele ngigcine amafayela amasha njenge VOB?

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 ngaphakathi kwe VOB zingakhethwa, noma ziboshwe ngaphakathi kwesithombe?

Kukhethwa, uma kufakwe kahle. VOB ifaka izihloko ezingezansi njengemithombo yabo ehlukile engezansi kwevidiyo, ngakho-ke umbukeli angashintsha ulwimi, azicishe, noma aphinde aphinde asebenzise izihloko ezingezansi kumdlali oxhasa lokhu. Izihloko ezingezansi ezibomvu zingasetshenziswa — ziyi-pixels kuphela kwifreyimu — kodwa zihlala njalo, futhi akuyona isizathu sokukhetha uma isiqulatho sixhasa into engokoqobo.

Ingabe ihele VOB ligcina ama-tracks omsindo amaningi?

Yebo - imixholo yesiNgisi, i-dub ne-comment ingahlala yonke kwifayela elilodwa ne-player eshintsha phakathi kwazo. Izinqumo ezimbili: amafoni amaningi nama-television adlalayo abonisa kuphela umculo wokuqala kodwa amanye akhona, futhi ukuguqulwa kufomethi ngaphandle kosizo olukhulu lwe-tracks agcina umculo owodwa futhi akhuphula okunye. Khetha umculo ofuna ukuwuguqula, hhayi ukucabanga ukuthi iyiphi ehlala. I-VOB igcina yonke i-DVD payload - ama-angles amaningi, izilimi eziningi zomsindo nama-subtitle tracks wonke ahlala ngaphakathi.

Ingabe VOB igcina izibonisi zesigaba?

Ikwenza — amasigaba ahlala kwi-metadata yebhokisi, ngakho ukurekhodwa okude kungafinyelelwa ngengxenye endaweni yokudonsa ibha yokuqhubekela phambili. Baphila ngokucindezela kabusha kufomethi ehlukile yesigaba esizizwayo futhi bakhuphuka, ngokuzizwayo, ngenye engakholeki. Uma amasigaba abalulekile, lokhu kufanelekile ukubheka ngaphambi kokukhetha ifomethi yesingeniso endaweni yokuqhubeka.

Ingabe ukusebenzisa VOB kuthatha ilayisense lepatenti?

Akunakho okukudingayo. Ama-codecs ahlobene ahlobene ne-patent pools, futhi ilayisense ibekwe 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 nokushintsha ifayela oline.