Mataki na 1: Loda naka MPG fayiloli ta amfani da maɓallin da ke sama ko ta hanyar ja da sauke su.
Mataki na 2: Danna maɓallin 'Maida' don fara hira.
Mataki na 3: Sauke fayil ɗin da aka canza MPEG fayiloli
MPG zuwa MPEG Tambayoyin da ake yawan yi game da Canzawa
Ta yaya zan canza MPG zuwa MPEG ba tare da sake-saukar da saukar bidiyo ba?
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Idan MPG da MPEG na iya ɗaukar codec guda (H.264, H.265, VP9, AV1), mai maida zai koma zuwa wani remux: ana kwafe maganganun farko bayt-by-bayt cikin MPEG kuma kawai mai riƙe da shi ya canja. Wani remux na 1 GB MPG zuwa MPEG na iya ƙarewa cikin sakan 5-15 da asarar inganci. Abin da ke cikin shi ne MPEG-1 ko MPEG-2 bidiyo da MP2 sauti; muxing da GOP tsari suna daidai da fayil na.mpeg. Bidiyo ne MPEG-1 ko MPEG-2 tare da MP2 ko AC-3 sauti, multiplexed cikin wani stream wanda aka tsara don a decode da fixed-function hardware.
An iya canja MPG zuwa MPEG ba tare da sake encoding bidiyo ba?
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Ya, kuma wannan shi ne hanya mai sauri. MPG da MPEG suna raba irin wannan tsari na akwatin da ke ƙasa, don haka ana kwafe bidiyon da sauti a cikin bayt-by-byte kuma kawai an sake rubuta ƙofar ƙofar. Ba a decode komai ba kuma ba a sake ƙuntata komai ba, don haka fayil mai tsawo na fasali zai ƙare cikin minti daya a maimakon awa daya, tare da ingancin fitarwa na daidai da na asali. MPG shi ne irin shirin MPEG na ruwa kamar yadda.mpeg — fassara-harshe uku na ƙarshe shi ne DOS-era truncation, ba wani format daban ba. MPEG yana nufin MPEG-1 ko MPEG-2 shirin tafiyarwa, format da aka ƙaddara ga Video CD da kuma DVD da kuma talabijin mai watsa labarai.
Shin akwai wani maɓalli na canja tsakanin nau'ikan zane biyu kamar MPG da MPEG?
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Idan wani ɓangare na kayan aiki na musamman ya buƙaci manufa. Formats biyu sun zo daga irin wannan lokacin da aka yi kafin H.264, don haka babu wani canji da ke siyar da inganci, inganci ko tabbatarwa a gaba - yana siyar da daidaituwa tare da wani na'ura na musamman. Idan manufar ita ce a riƙe bidiyo mai amfani da dogon lokaci, canja zuwa wani akwatin yanzu maimakon gefe. MPG na riƙe da duk wani MPEG-2 da ya ƙunshi - bitrate mai nauyi, interlacing, ba da softsubs - da kuma damuwa na biyu faɗaɗawa ga daya format. MPEG-2 yana bukatar kusan sau huɗu zuwa shida na bitrate na H.264 ga irin wannan hoton, kuma abun ciki na da yawa interlaced, wanda yake ganin combed a kan modern nuna.
Shin waƙoƙin sauti masu yawa za su iya tsira daga canji daga MPG zuwa MPEG?
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Na'am — duk waƙoƙin sauti a cikin MPG (waƙoƙin mai shiryawa, yarukan dabam, waƙoƙin bayani) ana kiyaye su a cikin MPEG idan mai nema na goyon bayan waƙoƙin sauti masu yawa. MKV da MOV suna kula da waƙoƙin sauti ba tare da iyaka ba; MP4 yana goyon bayan da yawa amma wasu masu wasa da na'urorin haɗi suna ganin waƙoƙin 1 kawai; WebM ana hana shi a waƙoƙin Opus / Vorbis guda.
An riƙe waƙoƙin sunaye-na-ƙasa idan an canja MPG zuwa MPEG?
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Subtitles soft (tracks da ake iya zãɓewa) suna tsira idan MPEG zai iya ɗaukar su: MKV yana da SRT, ASS, SSA, PGS, VobSub a matsayin native; MP4 yana da mov_text kawai (farashin da aka rufe). Canja MKV tare da ASS styled subs zuwa MP4 zai iya sa su kasa zuwa mov_text ko kuma a toshe su. Hardsubs (an toshe su cikin bidiyo) suna tsira duk da haka.
Shin MPG zuwa MPEG na dauke da alamomin babi / DVD-style nasarar?
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Metadata na babi na canja tsakanin MPG da MPEG duk lokacin da bangarorin biyu ke goyon bayan wani atom na babi (MKV, MP4, MOV). WebM na adana babi a cikin wani ɓangaren da ya dace da Matroska, don haka MKV <-> WebM na dauke da babi-zuwa-baya cikin tsabta. AVI ba shi da wani bayani na babi, don haka canja AVI zuwa MPEG zai samar da fayil da ba a raba shi ba sai idan ka ƙara alamun shafi da hannu.
Me ya faru da canzawa daga MPG zuwa MPEG?
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MKV shi ne mai sarrafa maɓallin maɓalli kawai wanda ke adana fayilolin da aka haɗa (TTF fonts for ASS subs, JPG cover art, fan-translated PDF inserts). Zuwa daga MPG zuwa MPEG yana daure waɗannan maɓallan idan MPEG bai zama MKV ba — maɓallan elemental na canjawa, amma nauyin da aka haɗa yana zaune a cikin tushen. Ka riƙe MPG a matsayin madadin idan kana dogara da maɓallan da aka haɗa.
Mene ne kodeki na fitarwa MPEG ke amfani da shi bisa diff?
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An zaɓi codec ɗin diff don ya haɗu da mai riƙe MPEG da kyau: MKV diff zuwa H.265 (HEVC) don mafi kyawun ƙuntata; MP4 diff zuwa H.264 don mafi faɗin goyon baya na na'ura; WebM diff zuwa VP9; AVI yana amfani da MPEG-4 ASP (DivX/Xvid lineage). Yaƙin neman zaɓe ta hanyar jerin kayan aikin codec na ci gaba — AV1 yana da samuwa ga MKV / WebM inda kake so mafi girman ƙuntata kuma zaka iya jira ta hanyar ƙuntata.
Ta yaya HDR (HDR10, Dolby Vision) zai iya tsira daga MPG zuwa MPEG?
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Metadata na HDR na canzawa (HDR10 masu nuna kimar, matsakaicin matsakaicin matsakaici) yana tafiyar da MPEG idan kowace ƙuƙumma da codec ɗin da aka zaɓa suna goyon baya (HEVC, AV1 a cikin MKV / MP4). Dolby Vision yana da tsananin rauni — siffar DV 5 / 7 / 8.1 a cikin MPG tana da ƙarfi kawai a cikin MKV tare da HEVC; canjawa zuwa ƙuƙumma MPEG da ba ta da ɗakin DV yana daidaita zuwa HDR10.
Shin mai canza MPG zuwa MPEG zai riƙe saurin firam mai canzawa (VFR)?
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MKV da WebM suna rikodin lokaci-da-firam na gaskiya kuma suna kula da VFR na asali, don haka MPG VFR yana tsira cikin MPEG daga cikin waɗannan sifofin ba tare da sake-samuwa ba. MP4 na adana lokaci-da-samuwa kuma amma wasu masu wasa suna tsammanin CFR; mai maida yana nuna wani "ciwon CFR" toggle wanda ke sake-samuwa VFR MPG zuwa 24 / 30 / 60 fps MPEG ga burin da ke da matsala.
Me yasa fayil ɗin MPEG na ƙarami ne / ya fi girma fiye da MPG bayan canjawa?
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Same-codec remux na samar da girman da ya kusan daidai (cikin kwandon da ke da bambanci na 0.1-2%). Canjin codec na iya juya girman da 50% ko fiye: H.264 zuwa H.265 na iya raba fayil din da rabi da ingancin gani na daidai; H.264 zuwa AV1 na raba shi da rabi a kan wani ƙananan ƙayyadadden. Zuwa daga high-bitrate MPG (Blu-ray rip) zuwa low-bitrate MPEG (web upload) shi ne dalilin da ya fi yawa na daina aiki.
Shin mai canza MPG zuwa MPEG yana kula da abun ciki na 4K / 8K / 60fps?
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Na'am har zuwa 8K (7680x4320) akan Premium. Mataki na kyauta yana kula da 4K (3840x2160) har zuwa iyakar fayil na 1 GB. Remuxes na tsarki (dauke da codec guda) na MPG mai girma zuwa MPEG ana iyaka da shi ta hanyar I/O na diski, ba CPU ba — MPG mai 30 GB na iyakance zuwa MPEG cikin minti daya ko da yake da ma'aunin. Ana sake-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sauya-sa
