Mataki na 1: Loda naka FLV 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
FLV zuwa MPG Tambayoyin da ake yawan yi game da Canzawa
Ta yaya zan sake encode FLV zuwa MPG ba tare da rasa ingancin bidiyo ba?
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Ka saukar da fayil ɗinka FLV 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. FLV na da Sorenson Spark ko H.264 bidiyo tare da MP3 ko AAC sauti, da aka rufe a cikin wani stream format tsara ga RTMP bayarwa. 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.
Shin akwai wani maɓalli na canja tsakanin nau'ikan zane biyu kamar FLV 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. Babu wani mai bincike na yanzu, wayar hannu ko TV da zai iya wasa FLV - duk abin da ke cikin wannan kwandon dole ne a motsa shi daga cikinsa domin ya ci gaba da zama mai gani. 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. 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 za'a iya canza waƙoƙina na sauti daga FLV zuwa MPG?
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Yanzu. Idan FLV 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 FLV zuwa MPG?
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A matsayin diff, na'am — 24fps FLV zai zauna 24fps a cikin MPG; 60fps FLV 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 FLV zuwa MPG?
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Re-mux na codec-daidai (FLV 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 FLV 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 FLV → 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 FLV 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 FLV and MPG containers support it.
Shin FLV 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 FLV → MPG canji. Kashe-kashe da canja shi ne mafi sauri fiye da sake-saukar da duk FLV kawai don a rufe bidiyo da ba'a amfani da shi ba.
Me ya sa fayil MPG ya yi duhu idan aka kwatanta da wurin asali FLV?
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Kafin kowace lokaci, wani tsari ne na bitrate-too-low. Sake-saukar da lissafi daga FLV mai tsananin bitrate zuwa MPG na CRF na diff yana da matukar tashe a kan hotunan da suke da yawa na motsi. Ka saukar da CRF zuwa 16-18, ko ka sanya wani bitrate na manufa mai bayyananne wanda ya dace da ma'anar FLV, kuma MPG zai sake samun haskensa. FLV na ƙan per-paketi overhead ya sa shi mai kyau a streaming a kan da ba a iya dogara da haɗin gwiwar na zamanin sa, da kuma manyan archives na shi har yanzu akwai.
