Mataki na 1: Loda naka AVI 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 MOV fayiloli
AVI zuwa MOV Tambayoyin da ake yawan yi game da Canzawa
Ta yaya zan sake encode AVI zuwa MOV ba tare da rasa ingancin bidiyo ba?
+
Ka saukar da fayil ɗinka AVI kuma mai canzawa zai yi aiki da wani CRF-da aka gina kan sake-sauya-kodi mai nufin fitarwa mai gani-ba-da-hasara MOV (CRF 18 bisa diff, ƙananan kimar = fitaccen fayil / mafi kyawun inganci). An zaɓi codec don ya haɗu da MOV ƙofar — H.264 don MP4 mai girma, H.265 don MKV mai girma, VP9 ga WebM, AV1 ga sabon pipes. AVI fayiloli da suka wuce codecs na yau da kullum: kallon MPEG-4 Sashe 2 (DivX/Xvid), Motion JPEG ko kuma raw uncompressed frames a matsayin H.264. A MOV a kan yi amfani da H.264 ko HEVC ga bayarwa, ko ProRes idan shi ne mai gyara master, tare da AAC ko uncompressed PCM sauti.
Na AVI bidiyo na nuna layin-ciki a kan motsi - shin wannan zai iya kaiwa cikin MOV?
+
Zai yi sai ka yi deinterlace, kuma AVI abun ciki yakan yi interlace saboda wannan sifar ta zo daga zamanin watsa labarai da DVD. Frames na interlaced suna adana fannoni biyu na rabin tsayi da aka kama da kashi goma sha biyu na sakan; akan wani wayar hannu ko allon da ke da tsarin progressive-scan wanda yake karantawa kamar wani latsawa a kan duk abin da ke motsi. Ka kunna zaɓin deinterlace kuma mai yanka zai yi wafer da fannoni cikin dukkanin frame na progressive kafin ya rubuta MOV. AVI ne Microsoft na Audio Video Interleave, gabatar a cikin 1992 a kan saman na RIFF chunk format - daya daga cikin mafi tsawo akwatunan har yanzu a cikin zirga-zirga.
An raba AVI na rikodin zuwa sassa masu lamba - shin MOV na da daidaitacce?
+
%s: Ba haka ba, kuma wannan ɗayan dalilan da suka fi kyau na motsa. Mai riƙe AVI yana da wani ma'aunin fayil guda wanda za'a iya amfani da shi wajen yin riƙe-riƙe mai tsawo ko mai tsayi, wanda shi ne dalilin da ya sa an samu riƙe-riƙe da yawa kamar ɓangare1, ɓangare2, ɓangare3. MOV ba shi da wani iyaka mai daidaitawa, don haka za'a iya sake haɗa ɓangarorin cikin fayil guda mai ci gaba. AVI ba ta da goyon baya na asali ga codecs na zamani, frame rate mai canzawa, softsubs ko fayiloli sama da 4 GB ba tare da hacks, da kuma per-chunk overhead bloats da fayil.
Yanzu. AVI ba ta da wata hanyar amfani da sautin-ƙasa-ƙasa, don haka an buɗe sautin-ƙasa ga AVI abun ciki cikin hoton ko kuma an aika da shi kamar fayil na daban. MOV yana da sautin-ƙasa kamar yadda za'a iya zaɓar su a cikin ruwa, don haka bayan canjawa zaka iya haɗa wata hanyar SRT da mai kallo zai iya kunna, kashe ko kuma sake fasalin.
Shin MOV na goyon bayan alamun shafi da AVI ba ta goyon ba?
+
Yana yi. MOV na adana sashe kamar metadata na kwandon, don haka za'a iya tafiyar da wani rikodin mai tsawo ta ɓangaren ba tare da rufe wani barar ci gaba ba. AVI ba ta da wurin da za'a saka wannan bayanin ba, don haka idan mai samarwa ya aiko da jerin sashe ya kasance cikin fayil na sidedcar — ba da wannan zuwa mai canja wurin kuma zai rubuta cikin MOV. MOV ne format professional mawallafa tambaya ga, saboda shi ya tsira da sake-run round-jirgi ta hanyar Final Cut Pro, Premiere da DaVinci Resolve ba tare da generational asara.
Shin yana da kyau a canja wa AVI da aka riga aka yi zuwa MOV?
+
Ga duk abin da kake son kiyayewa, na'am. AVI yana da alaka da wani zamani na baya na kayan aikin bidiyo kuma kayan aikin da ke karanta shi yana faruwa da sauri daga wayoyin hannu, masu bincike da tsarin aiki. Motsa bidiyo zuwa MOV yanzu, yayin da mai decoder mai tsafta ke nan, shi ne bambanci tsakanin wata arshiya da zaka iya buɗewa cikin shekaru goma da wata da ba za ka iya buɗewa ba.
Wanne codec na bidiyo ne fitarwa MOV take amfani dashi?
+
Yana dogara ga kwandon MOV. 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. MOV ne Apple QuickTime jakar, shige a cikin 1991 kuma har yanzu format na iPhone, iPad ko Final Cut Pro timeline ya rubuta ta default.
Shin za'a iya canza waƙoƙina na sauti daga AVI zuwa MOV?
+
Yanzu. Idan AVI da MOV 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 MOV 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 AVI zuwa MOV?
+
A matsayin diff, na'am — 24fps AVI zai zauna 24fps a cikin MOV; 60fps AVI 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 AVI zuwa MOV?
+
Re-mux na codec-daidai (AVI H.264 → MOV 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 MOV zai iya wasa a kan iPhone, Android, da Smart TVs?
+
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 MOV codec / kwandon don manufarka. MOV fayiloli ne girma, kuma a waje na Apple ecosystem playback goyon baya ne patchier fiye da MP4 - da kuma wasu Smart TVs za su ki su.
Menene lokacin da za'a yi wa canja bidiyo mai awa 1 zuwa AVI zuwa MOV?
+
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 AVI → MOV ya ƙare cikin minti 18-40 dangane da daidaita da manufar codec.
