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 sake enkoɗa MPG zuwa MPEG ba tare da rasa ingancin bidiyo ba?
+
Ka saukar da fayil ɗinka MPG kuma mai canzawa zai yi aiki da wani CRF-da aka gina kan sake-sauya-kodi mai nufin fitarwa mai gani-ba-da-hasara MPEG (CRF 18 bisa diff, ƙananan kimar = fitaccen fayil / mafi kyawun inganci). An zaɓi codec don ya haɗu da MPEG ƙofar — H.264 don MP4 mai girma, H.265 don MKV mai girma, VP9 ga WebM, AV1 ga sabon pipes. 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?
+
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 — wannan fassara ta uku-alƙawari ne DOS-era truncation, ba wani daban format. 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?
+
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.
Mene ne codec ɗin bidiyo da fitarwa MPEG take amfani dashi?
+
Yana dogara ga abin da ke cikin MPEG. MP4 na da diff zuwa H.264 domin mafi fadin goyon baya na wasa a kan wayoyin hannu, na'urorin bincike, da Smart TVs. MKV na da diff zuwa H.265 / HEVC don kusan rabin girman fayil da inganci mai kama da. WebM na da diff zuwa VP9. Zaɓuɓɓukan ci gaba suna nuna zaɓin codec mai bayyananne idan kana buƙatar sake shi.
Shin waƙoƙina na sauti za su iya tsira daga canji daga MPG zuwa MPEG?
+
Na'am. Idan MPG da MPEG suna raba codec na sauti (misal, suna da AAC), za'a sake-muxed sauti ba tare da sake-encode ba - bit-identical. Idan codecs sun bambanta, za'a sake-encode sauti zuwa AAC / Opus / Vorbis dangane da abin da mai riƙe da MPEG ke goyon baya. An kiyaye sauti mai layuka da yawa (waƙoƙin sharhi, yarukan dabam-dabam).
Shin zan iya riƙe ƙimar firam na asali idan na canja MPG zuwa MPEG?
+
A bisa diff, na'am — 24fps MPG zai zauna 24fps a cikin MPEG; 60fps MPG zai zauna 60fps. Idan kana buƙatar canza adadin (misali, interlaced 29.97 → progressive 30, ko 60 → 30 don iyakancewar aikawa), zaɓin adadin firam na kula da 3:2 pulldown, deinterlacing, da kuma haɗe-firam a cikin mataki ɗaya na encoding.
Menene girman fayil ɗin zai canza daga MPG zuwa MPEG?
+
Re-mux na codec-daidai (MPG H.264 → MPEG H.264 kawai yana canja kwandon): girman da ya fi daidai. Canjin codec na iya sauya sosai: H.264 → H.265 na iya raba fayil zuwa rabinsa da ingancin gani na daidai; VP9 yana da kama da haka; AV1 na yanke wani 20-30% amma yana da sauri wajen encoding.
Shin fayil MPEG zai iya wasa a kan iPhone, Android, da Smart TVs?
+
MP4 / H.264 yana wasa a kan kowane na'ura mai zaman kansa. MOV / H.264 yana wasa a kan na'urorin Apple da TVs 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 farko wanda ke zaɓar mafi aminci MPEG codec / kwandon don manufarka.
Menene lokacin da ake buƙata don canja bidiyo mai awa 1 daga MPG zuwa MPEG?
+
Same-codec re-mux yana kusa da lokaci-da-lokaci — sakan 30 zuwa 60 ga fayil na sa'a 1. Full codec re-encode yana tafiyar da kusan 0.3-0.7x lokacin asali a kan GPU pipeline ɗinmu, don haka sa'a 1 MPG → MPEG ya ƙare cikin minti 18-40 dangane da daidaita da manufar codec.
Mene ne mafi girman ma'ana da ake goyon baya ga MPG zuwa MPEG?
+
Har 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 MPG and MPEG containers support it.
Shin bidiyo na MPG na sirri ne yayin canjawa zuwa MPEG?
+
Na'am. An yi amfani da fayilolin bidiyo da aka tura a cikin masu aiki masu tsalle-tsalle, ba a taba ganinsu da wani mutum ba, ba a taba sanya su cikin indiya ba, kuma an share su cikin mintina bayan kammalawa. An yi takardar tagar tsare-tsaren a /privacy/ kuma ba mu wallafa wata takardar koyarwar koyarwar daga masu turawa na masu amfani ba.
Ba a cikin mataki guda ba — amfani da /video-trim/ ko /video-cutter/ don a kwafe farko, sa'an nan kuma a gudanar da MPG → MPEG canji. Tsakanin tsawaita da canja shi ne mafi sauri fiye da sake-sauya-ƙoɗar duk MPG kawai don a rufe bidiyo da ba'a amfani da shi ba.
