Cam 1: Llwythwch eich MP4 ffeiliau gan ddefnyddio'r botwm uchod neu drwy lusgo a gollwng.
Cam 2: Cliciwch y botwm 'Trosi' i ddechrau'r trosi.
Cam 3: Lawrlwythwch eich ffeil wedi'i throsi VOB ffeiliau
MP4 i VOB Cwestiynau Cyffredin Trosi
Sut ydw i'n ail-amgodio MP4 i VOB heb golli ansawdd y fideo?
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Upload your MP4 file and set Quality to High Quality in the conversion options. That re-encodes the video at the highest quality setting (CRF 18 for H.264 and VP9 output), which keeps the most detail at the cost of a larger file. The default, Balanced, uses the standard setting. The VOB output gets a codec its container supports: H.264 for MP4, MOV and MKV, VP9 for WebM. Mae bron pob MP4 yn y byd naturiol yn cynnwys fideo H.264 gyda sain AAC; mae'r cynhwysydd hefyd yn cynnwys HEVC, AV1 a VP9 yn gyfreithiol. Mae VOB yn cynnwys fideo MPEG-2, sain AC-3 neu PCM, a llifoedd isdeitlau is-ddelwedd DVD, wedi'u rhannu i rannau 1 GB gan y diffiniad DVD.
A all y VOB gynnal mwy nag un trac sain?
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Ie, ac mae'n uwchraddio gwirioneddol dros MP4. Mae VOB yn trin pob llif sain fel trac o'r radd flaenaf, felly gall cymysgedd iaith wreiddiol, dyb a sylwad cyfarwyddwr fyw mewn un ffeil gyda'r chwaraewr yn newid rhwng y rhain ar gais. Mae VOB yn cadw'r holl lwyth DVD - mae sawl ongl, sawl iaith sain a traciau is-deitl yn goroesi o fewn iddo.
A allaf dal i fewnosod y ffeil ar dudalen we ar ôl trosi MP4 i VOB?
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Nid yn uniongyrchol. MP4 yn chwarae mewnlin mewn pob porwr; VOB ddim, felly mae tudalen yn ei fewnosod yn dychwelyd i gyswllt lawrlwytho neu ffrâm chwaraewr wag. Os yw'r ffeil wedi ei ddylunio ar gyfer gwefan, cadwch y MP4 ar gyfer y we a thrin y VOB fel copïau archif neu golygu. Mae VOB yn cael ei rannu dros ffeiliau, gall fod wedi'i amgryptio gan CSS, ac yn cario pecynnau llywio sy'n rhwystro chwaraewyr pwrpas cyffredinol.
Pam ddylwn i drosi MP4 i fformat hŷn fel VOB?
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Gan nad yw llawer o'r caledwedd wedi dysgu dim newydd erioed, ac ni fydd. Chwaraewyr DVD, unedau pen y car, moddau chwarae camcorder, dangosyddion diwydiannol a llawer o offer llosgi darlledu yn derbyn VOB a dim byd arall. Mae'r trawsnewid yn gam i lawr yn effeithiolrwydd, wedi ei brynu yn lle gweithio ar ddyfais nad oes ganddi unrhyw ddewis arall.
Pa codec fideo mae'r VOB allbwn yn ei ddefnyddio?
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It depends on the VOB container. MP4, MOV and MKV output use H.264, which plays on practically every phone, browser and TV. WebM output uses VP9. AVI, WMV and MPEG output use the older codecs those formats were designed for. VOB yw'r cynhwysydd Gwrthrych Fideo a geir yn y blygell VIDEO_TS ar bob DVD - llif rhaglen MPEG-2 gyda data llywio DVD penodol wedi ei ychwanegu.
A fydd fy ngherddoriaeth yn goroesi trawsnewid MP4 i VOB?
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Yes, the main audio track comes through, re-encoded to a codec the VOB container plays, for example AAC in MP4 and MOV or Opus in WebM. Most conversions keep only that one track (the one with the most channels), so alternate languages and commentary are dropped. MP4 to MOV, and AVI, WMV, MPEG, FLV, VOB or M4V to MKV, keep every audio track.
A allaf gadw'r gyfradd ffrâm wreiddiol wrth drosi MP4 i VOB?
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Yes. The frame rate is kept unless you change it: a 24 fps MP4 stays 24 fps in the VOB. The Frame Rate setting can also convert to 60, 30 or 24 fps. It changes the rate only; it does not deinterlace the video or remove 3:2 pulldown.
Faint fydd maint y ffeil yn newid o MP4 i VOB?
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It depends on what happens to the video. MKV to MP4 or MOV with the default settings copies the video stream unchanged, so the size stays close to the source. Most other pairs re-encode it: a high-bitrate MP4 usually comes out smaller, while an already heavily compressed one can grow. Smaller File under Quality gives the smallest output, and H.265 in the Codec setting (MP4, MOV and MKV) is usually smaller than H.264 at similar quality but plays on fewer devices.
A fydd y ffeil VOB yn chwarae ar iPhone, Android, a Smart TVs?
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MP4 with H.264 plays on practically every phone, browser and TV. MOV with H.264 plays on Apple devices and most TVs but not on every older Android phone. MKV needs an app such as VLC on iOS, and WebM is at home in browsers. There is no device preset on this page, so choose the target format your device supports.
Faint o amser mae trosi fideo MP4 awr i VOB yn ei gymryd?
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There is no fixed time: it depends on the length, the resolution and the target format. Conversions run on our servers' CPUs with software encoders; there is no GPU acceleration. MKV to MP4 or MOV with the default settings copies the video stream and is the quickest. A re-encode to H.264 takes longer, and WebM (VP9) is the slowest target, several times slower than H.264 in our tests.
Beth yw'r cydraniad uchaf a gynhelir ar gyfer MP4 i VOB?
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The converter has no resolution cap of its own; the limit is the upload size allowed on your plan, and the resolution stays as it is unless you choose 1080p, 720p or 480p. There is no HDR processing or tone mapping. When the video stream is copied (MKV to MP4 or MOV with the default settings), HDR10 passes through untouched. A re-encode drops the HDR10 mastering metadata, and with a Quality, Resolution or Frame Rate setting some pairs also reduce the video to 8-bit colour, so an HDR MP4 can look washed out.
A yw fy MP4 fideo yn breifat wrth drosi i VOB?
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Yes. Uploaded MP4 files are processed on our own conversion servers, no person reviews them, and they are never shared. The upload and the converted VOB are both deleted automatically about 24 hours after the conversion, which leaves time to download the result. See /privacy/ for the full policy.
