Mataki na 1: Loda naka MPEG 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 MPG fayiloli
MPEG zuwa MPG Tambayoyin da ake yawan yi game da Canzawa
Ta yaya zan sake encode MPEG zuwa MPG ba tare da rasa ingancin bidiyo ba?
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Ka saukar da fayil ɗinka MPEG kuma mai canzawa zai yi aiki da wani CRF-da aka gina kan sake-sauya-kodi mai nufin fitarwa mai gani-ba-da-hasara MPG (CRF 18 bisa diff, ƙananan kimar = fitaccen fayil / mafi kyawun inganci). An zaɓi codec don ya haɗu da MPG ƙofar — H.264 don MP4 mai girma, H.265 don MKV mai girma, VP9 ga WebM, AV1 ga sabon pipes. 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. 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.
An iya canja MPEG zuwa MPG ba tare da sake encoding bidiyo ba?
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Ya, kuma wannan shi ne hanya mai sauri. MPEG da MPG 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. 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. MPG shi ne irin shirin MPEG na ruwa kamar yadda.mpeg — wannan fassara ta uku-alƙawari ne DOS-era truncation, ba wani daban format.
Shin akwai wani maɓalli na canja tsakanin nau'ikan zane biyu kamar MPEG da MPG?
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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. 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. 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.
Wanne codec na bidiyo ne fitarwa MPG take amfani dashi?
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Yana dogara ga kwandon MPG. MP4 na da ƙa'idodin H.264 domin mafi fadin goyon baya na wasa a kan wayoyin hannu, masu bincike, da Smart TVs. MKV na da ƙa'idodin H.265 / HEVC don kusan rabin girman fayil da inganci mai kama. WebM na da ƙa'idodin VP9. Zaɓuɓɓukan ci gaba suna nuna zaɓin codec mai bayyananne idan kana buƙatar canza shi.
Shin za'a iya canza waƙoƙina na sauti daga MPEG zuwa MPG?
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Yanzu. Idan MPEG da MPG sun raba wani codec na sauti (misala, suna da AAC), za'a sake-muxed sauti ba tare da sake-encoding ba - bit-identical. Idan codecs sun bambanta, za'a sake-encoding sauti zuwa AAC / Opus / Vorbis dangane da abin da ƙuƙuman MPG ke goyon baya. An riƙe sauti na shirye-shirye da yawa (koyarwar, harsuna daban-daban).
Shin zan iya riƙe ƙimar firam na farko idan na canja MPEG zuwa MPG?
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A matsayin diff, na'am — 24fps MPEG zai zauna 24fps a cikin MPG; 60fps MPEG zai zauna 60fps. Idan kana buƙatar canza adadin (misali, interlaced 29.97 → progressive 30, ko 60 → 30 don haɗe-haɗe), zaɓin adadin firam zai kula da 3:2 pulldown, deinterlacing, da frame-blending a cikin mataki na encoding guda.
Menene girman fayil ɗin da zai canza daga MPEG zuwa MPG?
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Re-mux na codec-daidai (MPEG H.264 → MPG H.264 kawai yana canja kwandon): kusan girman da ya daidaita. Canjin codec na iya yin tasiri: H.264 → H.265 na iya raba fayil zuwa rabin a matsayin ingancin gani; VP9 yana da daidaituwa; AV1 na yanke wani 20-30% amma yana da sauri wajen encoding.
Shin fayil MPG zai iya wasa a kan iPhone, Android, da Smart TVs?
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MP4 / H.264 yana wasa da asali akan kowane na'ura mai zamani. MOV / H.264 yana wasa a kan na'urorin Apple da yawa TV amma ba koyaushe ba a kan Android na daɗaɗɗen. MKV yana buƙatar VLC akan iOS. WebM shine mai bincike na farko. Zaɓuɓɓukan ci gaba sun haɗa da "haɗin kai na na'ura" da aka ƙayyade da ke zaɓar mafi aminci MPG codec / kwandon don manufarka. MPG shi ne fassara na DVD mai rubuta kayan aikin, da kamfen ɗin da aka fi sani da kuma kayan aikin shiga watsawa suna ganewa, don haka yana da amfani ga waɗannan maɓuɓɓugar ruwa.
Menene lokacin da za'a yi wa canja bidiyo mai awa 1 zuwa MPEG zuwa MPG?
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Re-mux na codec-daidai yana kusa da lokaci-da-lokaci - sakan 30 zuwa 60 ga fayil na sa'a 1. An sake-encode na codec-da-gaske yana tafiya a kusan 0.3-0.7x lokacin asali a kan GPU pipeline ɗinmu, don haka 1-hour MPEG → MPG ya ƙare cikin minti 18-40 dangane da daidaita da manufar codec.
Mene ne mafi girman ma'aunin rarraba da ake goyon baya ga MPEG zuwa MPG?
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Zuwa 8K (7680×4320) akan Premium plans. Free conversions are capped at 4K (3840×2160) by the per-file size limit. HDR metadata (HDR10, HDR10+, Dolby Vision when present) is carried through where both MPEG and MPG containers support it.
Shin MPEG bidiyo na na sirri ne yayin canjawa zuwa MPG?
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Yanzu. An yi amfani da fayilolin bidiyo da aka canza zuwa cikin aiki na musamman, ba a gani ba ta mutum, ba a sanya su cikin indiya ba, kuma an share su cikin mintina na kammalawa. An yi takardar tagar tsarewa a /privacy/ kuma ba mu wallafa wata ƙungiya ta koyarwar daga canzawa daga mai amfani ba.
Ba a cikin mataki guda ba - amfani da /video-trim/ ko /video-cutter/ don a kwance farko, sa'an nan kuma a gudanar da MPEG → MPG canji. Kashe-kashe da canja shi ne mafi sauri fiye da sake-saukar da duk MPEG kawai don a rufe bidiyo da ba'a amfani da shi ba.
