MP4 JPEG

Tahurihia Tō MP4 Tuhinga o mua JPEG kōnae ngawari

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Me pēhea te huri MP4 Tuhinga o mua JPEG

Hipanga 1: Tukuatu tō MP4 ngā kōnae mā te whakamahi i te pātene i runga ake nei, mā te tōia me te whakataka rānei.

Hipanga 2: Pāwhiritia te pātene 'Tahuri' hei tīmata i te tahuritanga.

Hipanga 3: Tikiake i tō mea kua tahurihia JPEG kōnae


MP4 Tuhinga o mua JPEG Ngā Pātai Auau mō te Tahuritanga

He pēhea te tango i ngā tāruatanga mai i tētahi MP4 video hei JPEG whakaahua?
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Whakataki i te MP4 ā, ka whakaaturia e te kaiwhakarere tētahi kōwhiringa rārangi-whakahauhau: ia rārangi Nth, ngā rārangi i ngā wā tauwhāiti, tētahi rārangi rānei i ia wa. Ka whakawaeheretia ia rārangi i kōwhiria hei pūranga takitahi JPEG, ā, ka whakawhāititia te tautuhi katoa ki roto i tētahi pūranga ZIP hei whakataki.
The same resolution as the MP4 video — a 1080p MP4 produces 1920×1080 JPEG frames; a 4K MP4 produces 3840×2160 JPEG frames. Use the resize utility after extraction if you want smaller thumbnails or social-media-sized crops.
Heoi, engari me āta whakaaro ki te tatau i te pūkete - he 30fps 1-roketi MP4 e whakaputa ana i ngā tāruatanga 1,800 JPEG. Ka whakatū i a tātau i roto i tētahi ZIP. Mō ngā tāruatanga roa ake, ko te "1 i ia wa" kōwhiringa (60 rārangi), ngā rārangi wā rānei e hoatu ana i tētahi hua whakahaere.
He — ka whakakōkītia te tae me te poukapa e whakamahia ana e te pūtake MP4 (BT.709 mō HD, BT.2020 mō 4K HDR). Ko ngā pūtake HDR he tono-mātata ki SDR i te whakawāteatanga ki JPEG nā te mea ko te nuinga o ngā āhua JPEG (PNG, JPG) kāore e taea te rokiroki i ngā awhe pikitia HDR māori.
E ai ki te rongoā me te pūkōrero JPEG. Ko te āhua o te tāpare 1080p PNG ko te 2 ki te 5 MB; ko te JPG 1080p i te āhuatanga-85 ko te 200 ki te 500 KB; ko te 4K PNG ko te 6 ki te 15 MB. I te tino, ko ia tāruatanga PNG-whāiti o te 10-rohe 1080p MP4 e whakaputa ana i ~50 GB katoa.
Kāore te MP4 kāwai e rokiroki i te EXIF-per-frame i te tikanga o tētahi pūwhitiwhiti, nā reira ka puta mai te JPEG me te EXIF mokowā. Ka whakawātea e tātau i tētahi āpure 'creation_time' e tohu ana ki te rārangi pūtake o te rārangi wā kia taea ai e koe te whakarōpū anō i te pūhui mā te raupapa tātari.
He tere te tango i te tāruatanga rārangi - i te nuinga o te 20 ki te 30% o te roanga pūtake i runga i te pūtautau paerewa. Ko te 5-meneti MP4 → JPEG ka oti i roto i te minu i te nuinga o te minu, ahakoa te tautuhi rārangi, nā te mea ko te whākōkī te JPEG, ehara i te MP4 demuxer.
He — ka whakaaetia e te kōwhiringa mātauranga tētahi rārangi wā-whakahaeretanga o ngā tātai wā (hei tauira, `00:01:23,00:05:00,00:10:42`) ā, ka whakaputa i tētahi JPEG pūranga i ia wā. He whai hua mō ngā tātai whakahuahua o te wāhanga, ngā tātai tohutoro āhua, ngā whakaakoranga roa rānei.
He — te tauira anō o te āhua o te āhua o te āhua o ia tahuritanga. Ko te ataata pūtake me ngā tāruatanga JPEG e mahia ana i roto i ngā kaimahi motuhake, ā, ka whakakoretia i roto i ngā minu; kāore he arotakenga tangata, kāore he whakaakoranga, kāore he uru ki te tuatoru.
Tata tonu ki te wā katoa ka whakamātauria te whakarerekētanga nekehanga ki te pūtake MP4 — i neke te kāmera, te kaupapa rānei i te wā i tangohia te tākaro. Ka tīpako i ngā wā mai i ngā tirohanga tūturu, ka tangohia rānei ngā tākaro tata, me te kōwhiri i te tino mārama. Kāore te pūtautau e whakakotahi ana i ngā taipitopito kāore i reira.
Kāore i te rerenga taketake — ka whakamahia te "1 i ia wa" hei kōaro, kātahi ka tīpako i ngā tāurunga huringa-whakarere. He tāurunga whakamātautau-whakarere i runga i te mahere huarahi; ka whakapā atu ki a mātau mēnā ka whakakoretia tētahi rerenga mahi tauwhāiti.
He, i raro i te whakaaetanga e whakahaere ana i te pūtake MP4. Kāore te huringa hanga e tāpiri i tētahi take — kāore e tāpiri ana tātau i tētahi tohu wai, ā, kāore e whakapuakina he whakaaetanga i runga i te huaputa JPEG. Ka whai te mana ā-tika i te pūtake, ehara i te kaiwhakarere.

MP4

Ka taea e te hōputu ipu MP4 te pupuri i ngā ataata, oro, hauraro, me ngā whakaahua i roto i te kōnae kotahi me te kōpeketanga tino pai.

JPEG

Ka whakamahi a JPEG i te kōpeketanga ngaronga kua arotauhia mō ngā whakaahua, kia taurite ai te kounga me te rahi o te kōnae.


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