Céim 1: Uaslódáil do MP4 comhaid ag baint úsáide as an gcnaipe thuas nó trí tharraingt agus scaoil.
Céim 2: Cliceáil an cnaipe 'Tiontaigh' chun an tiontú a thosú.
Céim 3: Íoslódáil do chomhshó MKV comhaid
MP4 chun MKV Ceisteanna Coitianta maidir le Comhshó
Conas a athchódaím MP4 go MKV gan caighdeán físe a chailleadh?
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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 MKV output gets a codec its container supports: H.264 for MP4, MOV and MKV, VP9 for WebM. Is beagnach gach MP4 san fhiáine físeán H.264 le fuaim AAC; tá an coimeádán freisin go dlíthiúil HEVC, AV1 agus VP9. Is MKV codec-agnostic: H.264, HEVC, VP9 agus AV1 físeán suí sona sásta in aice le AAC, FLAC, Opus, DTS nó Dolby fuaime sa chomhad céanna.
An féidir leis an MKV níos mó ná rian fuaime amháin a shealbhú?
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Sea, agus is fíor-uasghrádú é thar MP4. MKV déileálann sé le gach sruth fuaime mar rian den chéad scoth, mar sin is féidir le meascán bunaidh teanga, dub agus tráchtaireacht stiúrthóra maireachtáil i gcomhad amháin leis an imreoir ag aistriú idir iad ar éileamh. Is MKV an coimeádán cartlainne de rogha toisc go stórálann sé rianta fuaime unlimited, fotheidil bog, marcóirí chaibidil agus ealaín chlúdach i gcomhad amháin.
An féidir liom an comhad a leabú fós ar leathanach gréasáin tar éis MP4 a thiontú go MKV?
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Ní go díreach. Seinnfidh MP4 inlíne i ngach brabhsálaí; ní imríonn MKV, mar sin tiocfaidh nasc íosluchtaithe nó fráma folamh imreora ar leathanach ina leabaítear é. Má tá an comhad le haghaidh suíomh gréasáin, coinnigh an MP4 don Ghréasán agus déileáil leis an MKV mar chóip chartlainne nó eagarthóireachta. Tá MKV beagnach aon tacaíocht crua-earraí dúchais - fóin, brabhsálaithe agus teilifíseáin gá de ghnáth VLC nó remux sula mbeidh siad ag imirt air.
An mbeidh an MKV fós ag imirt go réidh ar fhón nó ar theilifís?
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Ní fhéadfaidh sé. Déantar MP4 a dhíchódú ag sileacain tiomnaithe ar fhóin, táibléad agus teilifíseáin, agus sin an fáth a imríonn sé gan an ceallraí a leathnú. De ghnáth, titeann MKV ar ais chuig díchódú bogearraí ar na crua-earraí céanna - ualach LAP níos airde, gléas níos teo, agus frámaí a thit ar ábhar 4K. I gcás sprioc gléas, is é MP4 an coimeádán níos sábháilte chun fanacht ann.
Is coimeádáin nua-aimseartha iad MP4 agus MKV araon - cé acu ba chóir dom a choinneáil i ndáiríre?
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Coinnigh an ceann is fearr leat, mar níl aon cheann níos fearr ná an ceann eile. Tá ceann acu seo tógtha le haghaidh comhoiriúnachta athsheinm agus an ceann eile le haghaidh gach rud a d' fhéadfadh a bheith i gcomhad, agus déanann siad trádáil lena chéile díreach ar an líne sin. Is é an freagra praiticiúil don chuid is mó de na leabharlanna cartlann a dhéanamh sa choimeádán saibhir gnéithe agus é a easpórtáil go dtí an ceann comhoiriúnach ar éileamh. Is MP4 an sprioc seachadta is sábháilte is féidir - gach fón, brabhsálaí, console, eagarthóir agus Smart TV tógtha sna deich mbliana anuas imríonn sé gan bogearraí breise.
Cén codec físe a úsáideann an MKV aschur?
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It depends on the MKV 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. Is MKV Matroska, coimeádán oscailte a ceapadh i 2002 gan srianta ceadúnaithe agus aon uasteorainn ar cad is féidir é a shealbhú.
An mairfidh mo rian fuaime MP4 go MKV comhshó?
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Yes, the main audio track comes through, re-encoded to a codec the MKV 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.
An féidir liom an ráta fráma bunaidh a choinneáil nuair a dhéantar MP4 a thiontú go MKV?
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Yes. The frame rate is kept unless you change it: a 24 fps MP4 stays 24 fps in the MKV. 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.
Cé mhéad a athróidh méid an chomhaid ó MP4 go MKV?
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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.
An mbeidh an comhad MKV ag imirt ar iPhone, Android, agus 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.
Cé chomh fada agus a thógann sé físeán 1 uair an chloig MP4 a thiontú go MKV?
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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.
Cad é an réiteach uasta a thacaítear le haghaidh MP4 go MKV?
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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.
