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Tahurihia Tō 3GP Tuhinga o mua JPG kōnae ngawari

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Me pēhea te huri 3GP Tuhinga o mua JPG

Hipanga 1: Tukuatu tō 3GP 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 JPG kōnae


3GP Tuhinga o mua JPG Ngā Pātai Auau mō te Tahuritanga

He pēhea te tango i ngā tāruatanga mai i tētahi 3GP video hei JPG whakaahua?
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Whakataki i te 3GP ā, ka whakaaturia e te tahuri tētahi kōwhiringa rārangi: ia rārangi Nth, ngā rārangi i ngā wā tauwhāiti, tētahi rārangi rānei i ia wa. Ka whakawaeheretia ia rārangi i kōwhiria hei pūranga takitahi JPG ā, ka whakatū te tautuhi katoa ki roto i tētahi pūranga ZIP hei whakataki. Ko te 3GP te taiwhanga i whakaritea e te 3GPP mō ngā pūrere pāpāho o mua, i te wā e tika ana kia ōrite te ataata ki tētahi mata 176x144 me tētahi mahere raraunga 2G. Ko JPG te paerewa JPEG mai i te tau kotahi mano e 1992, ā, i muri i ngā tekau tau e toru ko te āhua tonu o te nuinga o ngā kāmera me te nuinga o ngā whatunga e whakamahia ana mō ngā whakaahua.
Ahakoa rā, kāore anō kia whakamātauria e te 3GP, nā te mea kāore he rerenga tuhituhi kōwhiria e whakarerekē ana. Ko ngā mea katoa e whakaaturia ana e te 3GP i runga i te mata i roto i te whakaahua, nō reira i ia JPG ka puta te whakawāteatanga, ā, kāore he whakaritenga e tangohia ana i muri mai. Ki te tīariari he pūtake whakawātea o te tuhituhi whakawātea i te taha o te ataata, ka whakawāteatia mai i tētahi pūtake i pupuri i te rua i te wāhanga, ā, ka tīari te tāruatanga. E whakawhāititia ana te 3GP ki ngā rongoā iti me te oro-whakahaere-whakahaere; kāore e whakaora ana i ngā taipitopito kāore anō kia whiwhi.
Ko te āhuatanga 85 te pūmau tōtika, ā, ko te mea e whakamahia ana engari rawa ka huri i a koe — kāore e taea te whakawātea i te pūtake i te tawhiti tirohia noa iho, tata ki te rima o te rahi o tētahi ōritetanga kore ngaro. Whakahau ki te 95 mō tētahi mea e whakakētia ana, ka tātuhia rānei, ā, ka whakapeka ki te 70 mō ngā tātuhi iti i te wāhi e whakahaeretia ana te rahi. He ngaro te JPG: ka hurihia te whakaahua ki tētahi DCT, he nui, he waehere entropi, me te kāwae āhuatanga e whakahaere ana i te nui e whakawāteatia ana.
The same resolution as the 3GP video — a 1080p 3GP produces 1920×1080 JPG frames; a 4K 3GP produces 3840×2160 JPG frames. Use the resize utility after extraction if you want smaller thumbnails or social-media-sized crops.
Heoi, engari me āta whakaaro ki te tatautanga o te faila — 30fps 1-rohe 3GP e puta ai te 1,800 JPG ngā tāruatanga. Mātou e whakatū i a rātou ki roto i tētahi ZIP. Mō ngā tāruatanga roa ake, ka tuku te "1 i ia wa" (60 tāruatanga) ngā tāruatanga wā rānei i tētahi hua whakahaere.
He — ka whakakōkītia te tae me te poukapa e whakamahia ana e te pūtake 3GP (BT.709 mō te HD, BT.2020 mō te 4K HDR). Ko ngā pūtake HDR he tohu-whakatika ki SDR i te whakawāteatanga ki JPG nā te mea ko te nuinga o ngā āhua JPG (PNG, JPG) kāore e taea te penapena i ngā awhe pikitia HDR.
E ai ki te rongoā me te pūkōrero JPG. 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 3GP e whakaputa ana i ~50 GB katoa.
Kāore te 3GP kōpaka e rokiroki i te EXIF-per-frame i te tikanga o tētahi kāmera tūturu, nō reira ka puta mai ngā JPG pūranga me te EXIF mokowā. Ka whakatū i a mātou tētahi āpure `creation_time` e tohu ana ki te rārangi wā o te pūtake, nā reira ka taea e koe te whakarōpū anō i te pakiaka mā te raupapa tātari.
He tere te tangohanga rārangi - i te nuinga o te 20 ki te 30% o te roanga pūtake i runga i te pūtautau paerewa. Ko te 5-rohe 3GP → JPG e mutu ana i roto i te minue ahakoa te tau o te rārangi, nā te mea ko te kōwae te whakawaehere JPG, ehara i te 3GP te whakarerekē.
He — ka whakaae te kōwhiringa tiketike ki tētahi rārangi wā-whakahaere i ngā tātai (hei tauira, `00:01:23,00:05:00,00:10:42`) ā, ka whakaputa i tētahi JPG pūranga i ia tātai wā. Ka whai hua mō ngā tātai whakairo o te wāhanga, ngā tātai tohutoro āhua, ngā whakaakoranga roa rānei.
He — te tauira anō o te ātetetanga pēnei i ia tahuritanga. Ko te ataata pūtake me ngā tāruatanga JPG e mahia ana i roto i ngā kaimahi motuhake, ā, ka tangohia 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 3GP — 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.

3GP

Ko te 3GP he whakatakotoranga ipu rongorau i hangaia mo nga waea pukoro 3G. Ka taea e ia te penapena i nga raraunga ororongo me te riipene ataata me te whakamahia mo te purei ataata pūkoro.

JPG

Ka whakamahi ngā kōnae JPG i te kōpeketanga ngaronga kua arotauhia mō ngā whakaahua, kia iti ai ngā rahi kōnae me te pupuri tonu i te kounga tirohanga.


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