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 AVI fayiloli
FLV zuwa AVI Tambayoyin da ake yawan yi game da Canzawa
Ta yaya zan sake encode FLV zuwa AVI ba tare da rasa ingancin bidiyo ba?
+
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 AVI (CRF 18 bisa diff, ƙananan kimar = fitaccen fayil / mafi kyawun inganci). An zaɓi codec don ya haɗu da AVI 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. 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.
Shin akwai wani maɓalli na canja tsakanin nau'ikan zane biyu kamar FLV da AVI?
+
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. 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.
Wanne codec na bidiyo ne fitarwa AVI take amfani dashi?
+
Yana dogara ga kwandon AVI. 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. 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.
Shin za'a iya canza waƙoƙina na sauti daga FLV zuwa AVI?
+
Yanzu. Idan FLV da AVI 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 AVI 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 AVI?
+
A matsayin diff, na'am — 24fps FLV zai zauna 24fps a cikin AVI; 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 AVI?
+
Re-mux na codec-daidai (FLV H.264 → AVI 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 AVI 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 AVI codec / kwandon don manufarka. AVI ne trivially sauki, wanda ne daidai me ya sa da daɗewa camcorders, karfe, DVD ripping kayan aiki da Windows-era software duk har yanzu fitar da shi.
Menene lokacin da za'a yi wa canja bidiyo mai awa 1 zuwa FLV zuwa AVI?
+
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 → AVI 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 AVI?
+
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 AVI containers support it.
Shin FLV bidiyo na na sirri ne yayin canjawa zuwa AVI?
+
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 → AVI 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 AVI ya yi duhu idan aka kwatanta da wurin asali FLV?
+
Kafin kowace lokaci, wani tsari ne na bitrate-too-low. Sake-saukar da lissafi daga FLV mai tsananin bitrate zuwa AVI 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 AVI 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.
