MPG → MP4

Guqula Eyakho MPG kuya MP4 amafayela kalula

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Ukulayisha

Indlela yokuguqula MPG kuya MP4

Isinyathelo 1: Layisha eyakho MPG amafayela usebenzisa inkinobho engenhla noma ngokuhudula bese uphonsa.

Isinyathelo 2: Chofoza inkinobho ethi 'Guqula' ukuze uqale ukuguqulwa.

Isinyathelo 3: Landa i-version yakho MP4 amafayela

MPG kuya MP4 Imibuzo Evame Ukubuzwa Yokuguqulwa

Ngiyifaka kanjani i-MPG ku-MP4 ngaphandle kokulahlekelwa yikhwalithi yevidiyo?

Ukufaka ifayela lakho MPG futhi hlela 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 MP4 output gets a codec its container supports: H.264 for MP4, MOV and MKV, VP9 for WebM. Okuqukethwe yi-MPEG-1 noma i-MPEG-2 video ne-MP2 umsindo; ukuxhuma kanye nesakhiwo se-GOP kufana nehele le-.mpeg. Kuyinto encane kakhulu ukuthi wonke ama-MP4 aphilayo ayizividiyo ze-H.264 ezinesandi se-AAC; isiqoqi sigcina ngokusemthethweni i-HEVC, AV1 ne-VP9.

I-MPG yami ibonisa ama-comb lines ekuhambeni - ngabe lokhu kuzodluliselwa ku-MP4?

Yebo. i-MPG iqukethwe ngokuvamile i-interlaced, ngoba ifomu livela esikhathini sokusabalalisa ne-DVD, futhi lesi siguquli asinayo inketho yokususa ukuxhumana, ngakho-ke ukuxhuma ku-MP4. Uma kubaluleke, susa ukuxhumana kwe-MPG kuqala kwithuluzi ledesktop njenge HandBrake noma ffmpeg (isihlungi se-yadif). MPG iyi-MPEG i-program stream efanayo ne-.mpeg — isibonisi sokubhala esithathu siyi-DOS-era truncation, hhayi i-format ehlukile.

Ingabe ngizongeza izihloko ezikhethiwe uma ifayela liyi MP4?

Yebo. MPG ayinaso isikhala esisetshenziswayo sesihloko esincane, ngakho isikhala sesihloko se MPG kufanele sifakwe kusithombe noma sithunyelwe njengefayela le-sidecar elilodwa. MP4 sifaka isikhala sesihloko njenge-stream ekhethiwe, ngakho ngemuva kokuguqulwa ungafaka isikhala se-SRT okubonayo angashintsha, ashintshe noma aphinde ashintshe.

I MPG yami inezinhlamvu zomsindo eziningi — zingaba zonke zihlala ngaphakathi kwe MP4?

Akunalutho. Umguquli ugcina umsindo owodwa, owenza ama-channels amaningi (okungukuthi, umsindo oyinhloko), futhi ususa okunye; akukho sinqumo sokukhetha okuhlukile. Ukugcina umsindo owodwa, shintsha i-MPG nge-track yokuqala (i-VLC noma i-ffmpeg ingakwenza lokhu), bese uyiguqula. MPG yisibonisi sesoftware ye-DVD, ama-camcorders adala kanye nezixhobo zokusakaza ziyazi, ngakho ihlala isetshenziswa ezipayipini. I-MP4 isekela kuphela ifomu elilodwa lesihloko esihlonishwa kakhulu (mov_text), futhi umsindo we-multi-track awuthembeki ngaphandle kwama-players wedesktop.

Ingabe i-MP4 izodlala kwi-browser uma i-MPG ingadlalanga?

Yebo, futhi lokho kuyisizathu esiphelele sokuguqulwa. I MPG efakwe kwikhasi lewebhu ibonisa umdlali okhubazekile noma icindezela ukulayisha, ngoba iziphequluli azikho izikhombisi ezizo. MP4 idlala ngaphakathi ngengxenye yevidiyo ye-HTML5 engavamile ngaphandle kweplugin noma kusetshenziswa okungaphandle. MP4 yindawo ephephile yokufinyelela ekhona — yonke ifoni, i-browser, i-console, umhleli ne-Smart TV eyenziwe eminyakeni eyisithupha edlule idlala ngaphandle kwesoftware engeziwe.

Ingabe kufanelekile ukushintsha ama-MPG ama-records adala ku-MP4?

Noma yini ofuna ukuyigcina, yebo. MPG ihlobene nohlobo oludlule lwevidiyo nesoftware efunda ngayo ihlala ihamba ihamba isuka kumafoni, iziphequluli nezinhlelo zokusebenza. Ukusuka kwevidiyo ku MP4 manje, uma umqokeli ohlanzekile ukhona, kuyinto ehlukile phakathi kwegobo lomlando ongavula ngawo iminyaka eyisithupha nenye ongayenza. MPG ithola wonke ama MPEG-2 amaphutha - i-bitrate enzima, ukuxhuma, akukho ngezansi okuthambile - kanye nokungqubuzana kwezinhlamvu ezimbili ezibanzi zefomethi eyodwa.

Yini i-codec yevidiyo i MP4 isebenzisa?

Kuxhomekeka ku MP4 isiqoqi. MP4, MOV kanye MKV output ukusebenzisa H.264, okuyinto idlala ku ngempela wonke ifoni, ibrowser kanye TV. WebM output usebenzisa VP9. AVI, WMV kanye MPEG output ukusebenzisa codecs older labo amafomethi akhiwa. MP4 yi ISO/IEC 14496-14, ejwayelekile ngo-2001 futhi ivela ku-QuickTime box layout MOV isebenzisa.

Ingabe umsindo wami uzophila ukuguqulwa MPG kuya ku MP4?

Yebo, umsindo omkhulu ohambayo udlula, uphinde ukhodwe ku-codec i-MP4 idlala, isibonelo, i-AAC ku-MP4 ne-MOV noma i-Opus ku-WebM. Ukuguqulwa okuningi kugcina kuphela umsindo owodwa (omunye onezintambo eziningi), ngakho-ke izilimi ezihlukile nezibuyekezo zilahlekile. MP4 kuya ku-MOV, ne-AVI, WMV, MPEG, FLV, VOB noma M4V kuya ku-MKV, gcina wonke umsindo ohambayo.

Ingabe ngigcina ifreyimu yesiqalo uma ngiguqula MPG ku MP4?

Yebo. Izinga lefreyimu ligcinwa ngaphandle kokuthi ushintshe: i-24 fps MPG ihlala i-24 fps ku-MP4. Uhlelo lwezinga lefreyimu lingaguqulwa libe yi-60, 30 noma i-24 fps. Lishintsha kuphela inani; alisusanga ividiyo noma lisuse i-3:2 pulldown.

Ingabe ubukhulu behele bushintsha kanjani kusuka ku MPG kuya ku MP4?

Kuxhomekeka kulokho okwenzekayo kuvidiyo. MKV MP4 noma MOV nge default izilungiselelo ikhophi ividiyo umfutho engashintshiwe, ngakho ubukhulu ihlala eduze komthombo. Ezinye izibini eziningi ziphinde zikhophi: a high-bitrate MPG ngokuvamile ephuma ncane, ngenkathi ekhona kakhulu ecindezelwe eyodwa ingakhula. Ifayela elincane ngaphansi Quality inikeza inzuzo encane, futhi H.265 ku Codec isilungiselelo (MP4, MOV ne MKV) ngokuvamile ncane kuna H.264 ku quality efana kodwa idlala ku amadivayisi ambalwa.

Ingabe ihele MP4 lidlalwa ku-iPhone, Android, ne-Smart TVs?

MP4 ne H.264 idlala kunoma iyiphi ifoni, i-browser kanye TV. MOV ne H.264 idlala kunoma iyiphi idivayisi Apple kanye TVs eziningi kodwa hhayi kunoma iyiphi ifoni Android edala. MKV idinga app ezifana VLC ku-iOS, futhi WebM ikhaya e-browsers. Akukho isisetshenziswa preset kule khasi, ngakho khetha ifomu injongo isisetshenziswa sakho sisekela.

Ingabe kuthatha isikhathi esingakanani ukushintsha i-MPG yevidiyo yehora elilodwa ibe yi-MP4?

Akukho isikhathi esiqinile: sixhomekeke kude, isixazululo kanye nefomethi efanelekayo. Ukuguquka kuqhutshwa kumaseva ethu we-CPUs ngesoftware encoders; akukho GPU ukukhawulelwa. MKV kuya MP4 noma MOV ngezinhlelo ezijwayelekile zikopishe umsinga wevidiyo futhi zisheshe. Ukuphinda-ukuguqula ku-H.264 kuthatha isikhathi eside, futhi WebM (VP9) yinjongo ehamba kancane, izikhathi eziningi ezihamba kancane kune-H.264 ezivivinyweni zethu.