FLV BMP

Beddel Adiga FLV ilaa BMP si aan dadaal lahayn

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Sida loo beddelo FLV ilaa BMP

Tallaabada 1aad: Soo geli FLV faylasha adoo isticmaalaya badhanka kore ama jiid oo hoos u dhig.

Tallaabada 2: Guji badhanka 'Beddelaan' si aad u bilowdo beddelka.

Tallaabada 3: Soo dejiso faylasha aad bedeshay BMP faylasha


FLV ilaa BMP Su'aalaha Badiya La Weydiiyo Ee Ku Saabsan Beddelka

Sideen u soo saaraa frame-ka ka socda FLV fiidiyowga sida BMP sawirro?
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Soo deji FLV iyo soo beddelaha wuxuu muujinayaa doorbidka frame-ka-soo-saarka: frame kasta oo Nth ah, frame-yada waqti-dhimista, ama mid kasta oo frame ah daqiiqad kasta. Frame kasta oo la doortay waxaa loo qaabeeyey sida faylka BMP oo keliya, oo dhammaantoodna waxaa lagu soo bandhigay ZIP-archive loogu talagalay soo dejinta. FLV waa Flash Video container oo si toos ah u qaaday video web oo dhan ka qiyaastii 2003 ilaa Flash waxaa la joojiyay dhamaadka 2020. BMP waa Windows Bitmap, qaabka raster raw dhisay-in Windows tan iyo 1985.
Haddii kaliya FLV marnaba ma ay ku gubatay, maxaa yeelay FLV ma laha qulqulka subtitles ee la dooran karo si loo joojiyo. Wax kasta oo FLV uu ku muujiyo shaashadda waa sawirka, sidaas darteed waa mid kasta oo BMP oo soo saara soo saarista oo aan waxba ka saarin ka dib. Haddii faylka subtitles kala duwan uu ku jiro video-ga, ka soo qaado asalka oo labaduba kala duwan yihiin oo frame-yadana nadiif ah. No browser hadda, telefoonka ama TV ciyaari kartaa FLV - wax kasta oo weli ku jira badeecadaan waa in la istaagay ka baxsan si ay u sii watchable.
Go'aanka la midka ah sida FLV video - 1080p FLV wuxuu soo saaraa 1920×1080 BMP frame; 4K FLV wuxuu soo saaraa 3840×2160 BMP frame. U isticmaal adeegga dib u habeynta ka dib soo saarista haddii aad rabto thumbnails yar ama miisaanka miisaanka bulshada.
Haa, laakiin fiiro gaar ah u yeelo tirada faylka - 30fps 1-daqiiqo FLV wuxuu soo saaraa 1,800 BMP frame. Waxaan si otomaatig ah ugu soo ururinaa ZIP. Haddii aad rabto inaad ku dhejiso fiidiyowyo dheeri ah, ikhtiyaarka "1-second" (60 frame) ama waqti gaar ah ayaa siin doona natiijo la maamuli karo.
Haa - midabka waxaa lagu decodey matris-ka asalka FLV (BT.709 HD, BT.2020 4K HDR). HDR-yada HDR-yada waxaa loo qaabeeyey SDR marka la soo saaro BMP sababtoo ah BMP qaabab badan (PNG, JPG) ma kaydin karaan HDR pixel ranges natively.
Waxaa ku xiran kala-soocidda iyo BMP codec. Qaabdhismeedka 1080p PNG waa caadi ahaan 2 ilaa 5 MB; 1080p JPG oo ku yaal tayada-85 waa 200 ilaa 500 KB; 4K PNG waa 6 ilaa 15 MB. Marka ugu dambeysa, soo saarista PNG ee 10-minute 1080p FLV oo leh 10-minute 1080p FLV waxay soo saartaa ~ 50 GB oo dhan. BMP caadi ahaan kaydiyaa pixels buuxa uncompressed row la header yar, taas oo ah sababta ay sidaas u fudud in la fasiro.
Badeecada FLV ma kaydiso EXIF-ka frame-ka ah sida kamaradda waligeed samayso, sidaa darteed faylasha BMP waxay la yimaadaan EXIF-ka fog. Waxaan ku dhejinnaa `creation_time` meel ku tilmaameysa waqtiga asalka frame-ka si aad u soo celiso isku-darka iyadoo loo marayo amar qaadashada.
Soo saarista frame-ka waa degdeg - caadi ahaan 20 ilaa 30% muddada asalka ah ee khadka caadiga ah. 5-daqiiqo FLV → BMP bundle wuxuu ku dhammaadaa daqiiqad ka dib marka la eego tirada frame-ka, maxaa yeelay buuqku waa BMP codsi, ma aha FLV demuxer.
Haa — doorasho horumarsan aqbalaa liiska kala-qaybsan ee timestamps (tusaale ahaan `00:01:23,00:05:00,00:10:42`) iyo soo saarta mid BMP file kasta timestamp. faa'iido u ah qaybta thumbnails, goobta soo jeedinta shots, ama thumbnailing akhris dheer.
Haa - qaabka sirta ah ee isku midka ah sida isbeddel kasta. Video asalka ah iyo BMP frame-yada la soo saaray ayaa lagu dhaqaajin karaa shaqaalaha kala go'an oo la tirtiro daqiiqadaha gudahood; ma jiro dib u eegis aadane, ma jiro tababar, ma jiro helitaanka dhinac saddexaad.
Dhab ahaantii, dhaqdhaqaaqa dhaqdhaqaaqa ayaa si joogto ah u soo galay asalka FLV - kamaradda ama mawduuca ayaa istaagay marka frame-ka la qabto. Dooro tijaabooyinka ka soo baxa muuqaalada joogtada ah, ama soo qaado frame-yada ku xiga oo dooro kuwa ugu sharka badan.
Ma aha qulqulka aasaasiga ah - isticmaal "1 daqiiqo kasta" ikhtiyaarka sida ku dhow, ka dibna si muuqaal ah u dooro qaababka isbeddelka isbeddelka. A dedicated scene-detection extractor waa qorshaha socda; noo soo dir haddii ay ka bixi lahayd dhaqdhaqaaqa shaqada.

FLV

FLV ahaa ka dib Flash video on web, hadda waa la beddelay laakiin weli caadi ah ee downloads hore iyo kaydinta.

BMP

Faylasha BMP waxay sawirrada ku kaydiyaan qaab bitmap ah oo aan la cadaadin, taasoo keenta cabbirro faylal oo waaweyn laakiin tayo fiican leh.


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