MPG ku VOB Mafunso Ofunsidwa Kawirikawiri Okhudza Kusintha kwa Anthu
Kodi ndingasinthire bwanji MPG kupita ku VOB popanda kubwezeretsa kanema wa kanema?
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Ngati ma kontena a MPG 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 MPG ku VOB nthawi zambiri imatha m'masekondi a 5-15 ndi kuwonongeka kwabwino. Zina mwa zinthuzi ndi MPEG-1 kapena MPEG-2 kanema ndi MP2 audio; muxing ndi GOP chilengedwe ndi ofanana ndi.mpeg fayilo. 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 MPG ingasinthidwe ku VOB popanda kubwezeretsa kanema?
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Ndikugwirizana ndi ma DVD a 4K, ndipo ndi njira yofulumira. MPG ndi VOB amagawana bokosi lofanana lokhala ndi bokosi, kotero mavidiyo ndi ma audio streams amakopedwa m'ma byte-by-byte ndipo ma container wrapper okha amalembanso. Sichidzatha kusinthidwa ndipo sichidzasinthidwa, kotero fayilo ya feature-length imatha m'maola angapo m'malo mwa maola awiri, ndi mtundu wa output womwe uli ndi mtundu wofanana ndi wopanga. MPG ndi chimodzimodzi MPEG pulogalamu mtsinje monga.mpeg - atatu-alemba kuwonjezeka ndi DOS-era kugwa, si mtundu wina. VOB ndi Video Object wonyamula anapeza mu VIDEO_TS wapamwamba wa aliyense DVD - MPEG-2 pulogalamu mtsinje ndi DVD-osiyana kuyendera deta anawonjezera.
Kodi ndingawonjezera ma subtitle osankhika pamene fayilo ndi VOB?
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Ndikofunika. MPG ilibe nyimbo yogwiritsa ntchito yopanda malire, chifukwa chake ma subtitle a MPG amayenera kuphulika m'mavidiyo kapena kutumizidwa ngati fayilo ya sidecar yosiyana. VOB amabweretsa ma subtitle monga ma stream awo osankhidwa, chifukwa chake pambuyo posintha mutha kuwonjezera SRT track yomwe woyang'anira angagwiritse ntchito, kuchotsa kapena kubwezeretsa.
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. MPG 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. VOB amateteza zonse DVD payload - multiple angles, multiple audio zinenero ndi subtitle nyimbo zonse kupulumuka m'nyumba yake.
Kodi pali chinthu chosintha pakati pa mafomu awiri oyambirira monga MPG ndi VOB?
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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. VOB ndi kugawidwa pakati pa mafayilo, angagwiritsidwe ntchito CSS-encrypted, ndi kunyamula navigation packets kuti kukhumudwitsa cholinga chazikulu osewera.
Kodi ma audio ambiri adzapulumuka kusinthidwa kwa MPG kupita ku VOB?
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Ndikoyenera - zonse zolemba za audio mu MPG (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.
Kodi ma subtitle amasunga zosunga pamene MPG 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 MPG mpaka VOB amasunga masamba olemba / kuyendera kwa DVD?
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Metadata ya bokosi limasintha pakati pa MPG 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 MPG 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 MPG kupita ku VOB kumachotsa ma attachments pamene VOB si MKV - ma streams elementary amasinthidwa, koma payload ophatikizidwa amakhala m'malo ochokera. Tengani MPG 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 MPG 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 MPG nthawi zambiri amapulumuka okha ku MKV ndi HEVC; kusinthidwa ku VOB kontena lomwe silitha kunyamula gawo la DV limatha ku HDR10.
Kodi wosinthira MPG 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 MPG 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 MPG ku 24 / 30 / 60 fps VOB kwa zolinga zosatheka.
