MPG → MPEG

Guqula Eyakho MPG ukuba MPEG iifayile ngokulula

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Iyalayisha

Indlela yokuguqula MPG ukuba MPEG

Inyathelo 1: Layisha eyakho MPG iifayile usebenzisa iqhosha elingasentla okanye ngokutsala nokuwisa.

Inyathelo lesi-2: Cofa iqhosha elithi 'Guqula' ukuze uqalise ukuguqula.

Inyathelo lesi-3: Khuphela i-converted yakho MPEG iifayile

MPG ukuba MPEG Imibuzo Ebuzwa Rhoqo Ngokuguqula

Ndiyiguqula njani i-MPG ibe yi-MPEG ngaphandle kokulahlekelwa umgangatho wevidiyo?

Layisha phezulu ifayili yakho ye MPG kwaye umguquli uqhube i-CRF-esekelwe kwi-encoding ephindayo ebhekisa kwi-visually-lossless MPEG imveliso (i-CRF 18 ngokumiselweyo, amaxabiso aphantsi = ifayili enkulu / umgangatho ophezulu). I-codec ikhethiwe ukuhambelana ne MPEG isiqulathi-zifayili — H.264 ye-wide-compat MP4, H.265 ye-size-efficient MKV, VP9 ye-WebM, AV1 yee-pipelines ezintsha. Okuqulethwe yi-MPEG-1 okanye i-MPEG-2 ividiyo ene-MP2 umsindo; ukudibanisa nokwakhiwa kwe-GOP kufana ne-.mpeg ifayili. Ividiyo yi-MPEG-1 okanye i-MPEG-2 ene MP2 okanye AC-3 yesandi, ephindaphindwa kwi-stream eyenziwe ukuba ikhowudiwe yi-hardware esebenza ngokusisigxina.

Ingaba i MPG ingaguqulwa ibe yi MPEG ngaphandle kokubuyisela umbhalo ofihlakeleyo wevidiyo?

Ewe, kwaye yindlela ekhawulezayo. MPG ne MPEG zisebenzisa ukwakhiwa kwebhokisi ephantsi, ngoko ividiyo kunye nesandi zikhopiwe kwi-byte-kwi-byte kwaye kuphela isiqulathi seefayili sibhalwe kwakhona. Akukho nto ikhowudi kwaye akukho nto iphinde icinezelwe, ngoko ifayile yobude bempawu igqiba ngaphantsi kwemizuzu endaweni yeyure enye, ngemveliso ehambelanayo yobunjani bomthombo. I-MPG ifana nenkqubo ye-MPEG ejikelezayo njenge-.mpeg — uluhlu lweeleta ezintathu luyi-DOS-era truncation, hayi ifomati eyahlukileyo. I-MPEG apha ithetha i-MPEG-1 okanye i-MPEG-2 inkqubo yokuhamba, ifomati emiselweyo ye Video CD kwaye emva koko ye DVD kunye nokusasazwa kweTV.

Ingaba kukho incopho eguqula phakathi kwefomati ezimbini ezidala njenge MPG ne MPEG?

Ukuba nje inxalenye ekhethekileyo yezixhobo ifuna injongo. Iifomati zombini zivela kwixesha elifanayo elingaphambili le-H.264, ngoko akukho kuguqulelo luthenga ukusetyenziswa kakuhle, umgangatho okanye uqinisekiso lwexesha elizayo - luthenga ukulungelelaniswa nesixhobo esithile. Ukuba injongo kukugcina imifanekiso esetyenziswa ixesha elide, guqula kwicontainer yangoku endaweni ye-sideways. MPG ifumana yonke i MPEG-2 imida - i-bitrate enzima, uthungelwano, akukho sihloko esicocekileyo - kunye nokungaqhelekanga kweendawo ezimbini zokukhupha ifomati enye. I-MPEG-2 ifuna iindidi ezine ukuya kwezisithandathu ze-bitrate ye-H.264 yomfanekiso ofanayo, kwaye imixholo yayo ihlala idityaniswa, ebonakala icocekile kwi-displays yakudala.

Yeyiphi i-codec yevidiyo esetyenziswa yi-MPEG?

Ixhomekeke kwi MPEG isiqulathi seefayili. I-MP4 imiselwe ukuba ibe yi-H.264 ukuze ixhase ukudlala okubanzi phakathi kweefowuni, ii-browser, kunye ne-Smart TVs. I-MKV imiselwe ukuba ibe yi-H.265 / HEVC ukuze ilinganise nengxenye yobungakanani befayili kwinqanaba elifanayo lomgangatho. I-WebM imiselwe ukuba ibe yi-VP9. Iinketho eziphambili zibonisa ukhetho olucacileyo lwe-codec ukuba ufuna ukucima.

Ingaba umculo wam wesandi uya kuqhubeka uguquka ukusuka kwi MPG ukuya kwi MPEG?

Ewe. Xa MPG ne MPEG zibelana nge-codec yesandi (umzekelo, zombini zithabatha i-AAC), isandi siphinda sixutywe ngaphandle kokubuyisela ukukhowuda - i-bit-identical. Xa ii-codecs zihlukile, isandi siguqulwa kwi-AAC / Opus / Vorbis kuxhomekeke ekubeni i-MPEG ixhasa ntoni. I-audio enezithotho ezininzi (iingxelo, iilwimi ezitshintshiweyo) igcinwa.

Ndingagcina i-framerate yokuqala xa ndiguqula i-MPG ibe yi-MPEG?

Ngokungagqibekanga ewe — i-24fps MPG ihlala i-24fps kwi-MPEG; i-60fps MPG ihlala i-60fps. Ukuba ufuna ukuguqula umyinge (umzekelo, i-interlaced 29.97 → i-progressive 30, okanye i-60 → 30 yemida yokukhuphela), ukhetho lwe-framerate luphatha 3:2 ukutsala ezantsi, ukususa uthungelwano, kunye nokuqhekeka kwe-frame kwindlela efanayo yokufihla.

Ubungakanani befayili butshintsha njani ukusuka kwi MPG ukuya kwi MPEG?

I-codec efanayo yokuphinda-phinda (MPG H.264 → MPEG H.264 itshintsha kuphela isiqulathi seefayili): ubungakanani obufanayo. Utshintsho lwe-codec lunokutshintsha ngokumangalisayo: H.264 → H.265 luya kuquka ifayili kwinqanaba elifanayo lomgangatho wokubona; VP9 imalunga nokuthelekiswa; AV1 icima enye i-20-30% kodwa ihamba phantsi ukukopela.

Ingaba ifayili MPEG iyadlala kwi-iPhone, Android, kunye neSmart TVs?

MP4 / H.264 idlala ngokusemthethweni kwisixhobo ngasinye esitsha. MOV / H.264 idlala kwizixhobo ze-Apple kunye neTV ezininzi kodwa hayi rhoqo kwi-Android edala. MKV ifuna i-VLC kwi-iOS. WebM ikwi-browser-first. Iinketho eziphambili ziquka "ukulungelelanisa isixhobo" esimiselweyo esikhetha i-MPEG codec / isiqulathi esikhuselekileyo senjongo yakho. Iinkqubo ze MPEG ziguqulwa kolunye ulwimi zisebenzisa wonke umdlali we DVD, ibhokisi ebekwe phezulu kunye nomjelo wosasazo owenziwe ngaphambili, kwaye zithobela iimpazamo zebithi ngokulula.

Ithatha ixesha elingakanani ukutshintsha i-MPG yevidiyo yeyure enye ibe yi-MPEG?

I-Same-codec re-mux ikwindawo efutshane-imizuzu engama-30 ukuya kwengama-60 yefayili yeyure enye. I-codec epheleleyo ephinda-ikhowudi iqhuba malunga nexesha lomthombo we-0.3-0.7x kwi-GPU yethu, ngoko ke i-1-iyure MPG → MPEG igqiba kwimizuzu engama-18-40 ngokuxhomekeka kwisisombululo kunye ne-codec emiselweyo.

Yintoni ubukhulu bomfanekiso oxhaswayo kwi MPG ukuya kwi MPEG?

Ukuza kuthi ga kwi-8K (7680×4320) kwi-premium plans. Ukuguqulwa simahla kugqityiwe kwi-4K (3840×2160) ngumda wobungakanani befayili nganye. I-HDR metadata (HDR10, HDR10+, Dolby Vision xa ikhona) iqhutywa apho zombini i MPG ne MPEG iinqanawa zixhasa khona.

Ingaba i-MPG yevidiyo yam ifihlakeleyo ngexesha liguqulwa libe li MPEG?

Ewe. Iifayili zevidiyo ezilayishwe phezulu ziqhubekekiswa kubasebenzi abakhethekileyo, azisoloko zijongwa ngumntu, azisoloko zidweliswe kwisikhombisi, kwaye zicinywa kwimizuzu embalwa emva kokuphela. Ifestile yokugcina ibhalwe kwi /privacy/ kwaye asipapashi naziphi na iziqu zesifundo ezivela kubasebenzisi abalayishwe phezulu.

Ndingatywina, ndiyimise, okanye ndiyijikelezise ngexesha lokuguqulwa kwe MPG ukuya kwi MPEG?

Ayikumgangatho ofanayo — sebenzisa /video-trim/ okanye /video-cutter/ ukucima kuqala, emva koko qhuba uguqulelo MPG → MPEG. Ukudibanisa ukusika nokutshintsha kukhawulezayo kunekubuyisela kwakhona ikhowudi yonke i MPG ukushiya kuphela imifanekiso engasebenziyo.

MPG

IMPG lulwandiso lwefayile yeMPEG-1 okanye MPEG-2 iifayile zevidiyo. Isetyenziswa ngokuqhelekileyo ukudlala ividiyo kunye nokusasazwa.

MPEG

I-MPEG (iQela leeNgcali zeMifanekiso eshukumayo) lusapho lwevidiyo kunye neefomati zokucinezela iaudio ezisetyenziswa ngokubanzi ukugcinwa kwevidiyo kunye nokudlala kwakhona.