M'njira yoti, ma frame amasinthidwa ndi chinyezi cholimba kwambiri ndipo mpweya umasinthidwanso, chifukwa chisankho ndi chinthu cha chithunzi chosinthidwa; chigawo cha mawonekedwe chimasunga ngati simukufuna kuchotsa. Mumapatsa chida chofunikira, chida chofunikira kapena peresenti, ndipo chimagwira ntchito kuchokera ku chiyambi, osati kuchokera ku kope lakale lomwe lidasinthidwa.
Kodi ndingatani kuti ndizisunga kusiyana kwa mavidiyo, kapena kuletsa kukula kwa zithunzi?
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Both. Lock the ratio and one dimension follows from the other, which is what you want almost always. Unlock it and you get exactly the numbers you typed, at the cost of stretching — which on video means every face in the frame is slightly too wide. When you need a different shape, crop or letterbox rather than stretch.
Kodi mtundu woyamba umakhudza zotsatira za kusintha kwa kukula?
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M4V ndi MP4 mtundu Apple, nthawi zina ndi FairPlay DRM kugwirizana, kapena mosiyana chilengedwe MP4. Izi ndi zimene amaganiza ngati kuchepetsa wapamwamba ndi kokha nkhani ya pixels kapenanso nkhani ya re-encoding.
Kodi pali chinachake chokhacho M4V ine ayenera kuyang'ana kwa?
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Yes - M4V ndi chilengedwe MP4, koma FairPlay-otetezeka wina sangakhale kuchitidwa pa zonse - okha unprotected owona kupita. Kuyenera kuyesa pamaso inu kusintha kukula kwa fayilo inu simungathe kubwezeretsa.
Kodi ndi chiyani chofala kwambiri kulephera pamene resize M4V mavidiyo?
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Upscaling. Kukula sikungayambitse mfundo zosadziwika zomwe sizikuwonetsedwa, choncho zotsatira zake ndi mtundu wolimba wa mtundu woyamba ndi kukula kwakukulu. Kawirikawiri, sinthani kukula kwa chithunzicho kuchokera pazomwe muli nazo, ndipo sinthani kukula kwake kamodzi kokha, osati m'madera.
Kodi chisankho chomwe ndiyenera kulenga?
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Kugwirizana komwe idzasewera. 1920x1080 ndibe yosasinthika yotetezeka kwa zonse; 1280x720 imadula pafupifupi theka la bitrate ndipo ndi yochuluka kwa kujambula skrini kapena kulankhulana; 3840x2160 ndi yofunika kupewa ngati kanemayo anali woyenera kujambula. Ma platforms ozungulira akufuna 1080x1920. Musaiwale kukulitsa.
Kodi imagwira ntchito pa mafoni
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Inde, chosinthira chathu chimagwira ntchito bwino ndipo chimagwira ntchito pa mafoni ndi mapiritsi. Mutha kusintha mafayilo pa iOS, Android, ndi nsanja ina iliyonse yam'manja pogwiritsa ntchito msakatuli wamakono.
