WebM ku VOB Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu
Kodi ndingasinthire bwanji WebM kupita ku VOB popanda kubwezeretsa kanema wa kanema?
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Ngati ma kontena a WebM ndi VOB angagwiritse ntchito codec yomweyo (H.264, H.265, VP9, AV1), wosintha amabwerera ku remuxer: ma streams oyamba amakopedwa ndi byte-by-byte ku VOB kontena ndipo amasintha kokha. Remux ya 1 GB WebM ku VOB nthawi zambiri imatha m'masekondi a 5-15 ndi kuwonongeka kwabwino. WebM ndi mwanzeru m'mbali: VP8 kapena VP9 kanema (AV1 zaposachedwapa) ndi Vorbis kapena Opus audio, ndi chilichonse chinachake. A VOB ali MPEG-2 kanema, AC-3 kapena PCM audio, ndi DVD subpicture subtitle masamba, anagawa mu 1 GB segments ndi DVD spec.
Kodi VOB angagwiritse ntchito nyimbo zambiri kuposa imodzi?
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Ndikoyenera, ndipo ndi chithandizo choyenera pa WebM. VOB imachita chilichonse cha audio monga chida chabwino kwambiri, choncho mgwirizano wachilankhulo chachikhalidwe, dub ndi woyang'anira woyang'anira amatha kukhala m'fayilo imodzi ndi wosewera yemwe amasintha pakati pawo pazosowa. VOB amateteza zonse DVD payload - multiple angles, multiple audio zinenero ndi subtitle nyimbo zonse kupulumuka m'nyumba yake.
Amachita. VOB amasunga masamba monga metadata ya kontena, kotero kuti kujambula kwanthawi yayitali kungagwiritsidwe ntchito pogwiritsa ntchito gawo lomwe limatha kusinthidwa pogwiritsa ntchito bar ya progress. WebM sichingakhalepo kuti ipereke mfundozi, chifukwa chake ngati chiyambi chidatumizidwa ndi mndandanda wa kapitoli, chidapezeka mu fayilo ya sidecar - bweretsani kuti musinthe ndipo chimalemba mu VOB.
Kodi ndingapezebe fayilo patsamba la webusaiti pambuyo posintha WebM ku VOB?
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Sizokha. WebM imasewera m'masamba onse a masamba; VOB sichichita, chifukwa chake tsamba lophatikizira limabwerera ku download link kapena frame ya wosewera mpira wopanda. Ngati fayiloyo ikuyenera kupezeka patsamba, onetsetsani kuti WebM ndi webusaitiyi ndipo ganizirani VOB ngati archive kapena kusinthira kokha. VOB ndi kugawidwa pakati pa mafayilo, angagwiritsidwe ntchito CSS-encrypted, ndi kunyamula navigation packets kuti kukhumudwitsa cholinga chazikulu osewera.
Nchifukwa chiyani ndingasinthire WebM ku mtundu wachikhalidwe monga VOB?
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Chifukwa cha zinthu zambiri za hardware zomwe sizikuphunzira chilichonse chokhudzana ndi zinthu zatsopano komanso sizingatheke. DVD osewera, mayunitsi agalimoto, makamera osewera, mawonetsero amakampani ndi zida zambiri zofalitsa zofalitsa zimavomereza VOB ndi chilichonse chokhudzana ndi chilichonse. Kusinthana ndi njira yoyenera yotsika pamlingo, yogulitsidwa m'malo mwa ntchito pa chipangizo chomwe sichingakhale ndi njira ina.
Kodi ma audio ambiri adzapulumuka kusinthidwa kwa WebM kupita ku VOB?
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Ndikoyenera - zonse zolemba za audio mu WebM (kuwunika kwa woyang'anira, mabungwe osiyanasiyana, mawu ofotokoza) amasungidwa mu VOB pamene chikwama chofunikira chimathandizira ma audio ambiri. MKV ndi MOV amayendetsa ma audio osatha; MP4 amathandizira ambiri koma ena osewera a hardware amawona kokha track 1; WebM imatha pa Opus / Vorbis track. VOB ndi Video Object wonyamula anapeza mu VIDEO_TS wapamwamba wa aliyense DVD - MPEG-2 pulogalamu mtsinje ndi DVD-osiyana kuyendera deta anawonjezera.
Kodi ma subtitle amasunga zosunga pamene WebM amasinthidwa kuti VOB?
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Ma subtitle olimba (ma tracks osankhika) amapulumuka pamene VOB angawagwiritse ntchito: MKV amagwiritsa ntchito SRT, ASS, SSA, PGS, VobSub mwachilengedwe; MP4 amagwiritsa ntchito mov_text (format yosasinthasintha). Kusintha MKV ndi subs a ASS ku MP4 kumawawononga kuti akhale mov_text kapena kuwalemba. Hardsubs (olembana mu kanema) amagwiritsa ntchito ngakhale.
Kodi WebM mpaka VOB amasunga masamba olemba / kuyendera kwa DVD?
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Metadata ya bokosi limasintha pakati pa WebM ndi VOB pamenepo onse awiri amapereka bokosi la atomu (MKV, MP4, MOV). WebM imasunga bokosi m'ma block ogwirizana ndi Matroska, choncho MKV <-> WebM bokosi limayenda molimba. AVI sichimakhala ndi bokosi la spec, choncho kusintha kwa AVI ku VOB kumabweretsa fayilo yosasinthika ngati simuwonjezera ma markers m'manja.
Kodi ndi chiyani za MKV zowonjezera (fonti, kusindikiza) pamene mukupita WebM ku VOB?
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MKV ndi yokha mainstream yokhala ndi ma fayilo ophatikizidwa (TTF fonts for ASS subs, JPG cover art, fan-translated PDF inserts). Kuchokera ku WebM kupita ku VOB kumachotsa ma attachments pamene VOB si MKV - ma streams elementary amasinthidwa, koma payload ophatikizidwa amakhala m'malo ochokera. Tengani WebM ngati chitetezo ngati mumatengera ma fonts ophatikizidwa.
Kodi codec yomwe VOB imagwiritsa ntchito ndi yosasinthika?
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Kodiyi ya default imasankhidwa kuti igwirizane ndi VOB yokhala ndi katundu: MKV imasinthidwa kukhala H.265 (HEVC) kuti ikhale yolimba kwambiri; MP4 imasinthidwa kukhala H.264 kuti ikhale yolimba kwambiri; WebM imasinthidwa kukhala VP9; AVI imagwiritsa ntchito MPEG-4 ASP (DivX / Xvid linage).
Kodi HDR (HDR10, Dolby Vision) imatha bwanji WebM mpaka VOB?
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HDR static metadata (HDR10 mastering display values, max content light level) imatha kupita ku VOB pamene ma kontena awiri ndi codec osankhidwa amathandizira (HEVC, AV1 mu MKV / MP4). Dolby Vision ndi wolimba kwambiri - DV profile 5 / 7 / 8.1 mu WebM nthawi zambiri amapulumuka okha ku MKV ndi HEVC; kusinthidwa ku VOB kontena lomwe silitha kunyamula gawo la DV limatha ku HDR10.
Kodi wosinthira WebM mpaka VOB adzasunga kusinthasintha kwa framerate (VFR)?
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MKV ndi WebM amalemba ma timestamps a real-frame ndi kuwongolera VFR mwanjira yachibadwa, kotero kuti WebM VFR imatha kukhala ndi VOB ya mafomuwa popanda kubwezeretsa. MP4 imasunga nthawi yowonjezerapo koma ena osewera amaganiza kuti CFR; wosintha amatulutsa "kulepheretsa CFR" kuti abwezeretse VFR WebM ku 24 / 30 / 60 fps VOB kwa zolinga zosatheka.
