MP4 → WebP

Ka whakatuwheratia ki roto i tētahi kaiwhakaari, ki te kimi i te wā me te tuhituhi i te wa, nā te mea kāore he MP4 e mau ana i ngā tohu wāhanga hei whakatere i te nuinga o te wā. Ka whakatū i taua i roto i te āpure wā tīmatanga, ka tāpiri i tētahi roanga, ā, ka rapu te kaiwhakarere ki taua wāhi, ā, ka whakawātea anake i te tauine i tonoa e koe. He tika te rapu ki te tātari, engari ka taea anake te pai pēnei i te tau e tukua ana — tirohia i mua i te whakaatu i tētahi tākaro i mua i te whakapā atu ki tētahi tātari roa. Ko MP4 anake e tautoko ana i tētahi hanga tuhituhi ā-whānui (mov_text), ā, kāore te oro-maha i te whakawhirinaki i waho o ngā kaiwhakaari papatahi.

Ko te nuinga mo te aronga. He MP4 he pūranga pāpāho taketake ISO, ā, ko taua whānau e tuhituhi ana i te hurihanga hei tohu i roto i te kāwai, kaua e te huri i ngā pikitia — ko te take ka taea e tētahi tākaro te kite tika i tētahi tākaro, ā, ka noho i tōna taha i tētahi atu. Ka hangaia te whakatangi mai i ngā pikitia whakawaenga, kia honoa ai taua tohu i mua i te tuhi i te tākaro tuatahi; mēnā ka hoki te tirohanga ki te taha, ka huri te pūtake me te tahuri anō. Ko ngā mea katoa e pā ana ki tētahi kāmera, tātuhi rānei ko te take ngāwari: tētahi whakataki ataata, tētahi aho pūmau o ngā tātai. Tata tonu ki ia MP4 i te mohoao he ataata H.264 me te oro AAC; kei roto hoki i te kāwai he HEVC, AV1 me VP9.

Ināianei, ina whai i te faila i a koe. Ko te MP4 te mea e whakamahia ana e te Wīwī mō te ataata i roto i te raina, nā te mea kāore e whakapāpāhotia e ngā kaitiaki i te tā, nā reira ko te tākaro e whakapāhotia ana i roto i tētahi tīpako, he MP4 noa iho e tiaki ana, e whakarewa ana i reira pēnei i ētahi atu rārangi. Ko te whakarerekētanga he kaiwhakaari rerenga e tuku ana i ngā wāhanga tau poto i te wāhi kotahi - me whakakotahi anō i mua i te whakarerekētanga o tētahi mea. Ko ngā mana ko ētahi atu mea e hiahiatia ana hei whakamātautau: kāore te kaha ki te whakataki i tētahi video i te ōrite ki te whakaae ki te tānga anō i tētahi whakaahuatanga i hangaia mai i a ia. Ko MP4 te ūnga whakawhiwhinga tino haumaru rawa - ko ia whatunga, kaitiaki, pāpāho, kaiwhakawhanake me te Smart TV i hangaia i roto i te tekau tau i muri mai e whakawhiwhia ana ki te kore pūmanawa tāpiri.

Ko te ngaro, mō tētahi mea i tīmata hei ataata. Ka taea e tētahi whakaata WebP te whakawaehere i ōna tātuhi i te tikanga: ka pupuri te āhuatanga kore ngaro i ia piko, ā, ka ōrite ki ngā whakaahua papatahi me te kupu whakaata, i te wā e whakamahi ana te āhuatanga ngaro i te matapae ā-pātū o te momo e whakamahia ana e te pūkōrero ataata, ā, ka ōrite ki te pūwhitinga tūturu. He tino mārō ngā tātuhi kamara me ngā kāwai e kitea ana e te whakawhāiti kore ngaro he tauira, nō reira ka taea e te whakaata kore ngaro o tētahi tātuhi whakatata te neke i ngā wā maha te rahi o tētahi āhua ōrite. Ka waiho i te ngaro, engari rawa i te pūtake he whakataki mata o te kupu whakaata. Kei te WebP tonu te waeine tuarua i waho o te kaiwhaiwāhi — kāore e whakaaetia e ngā rerenga mahi tātai, ngā hanganga Tari tahito me ētahi whare tātari.

He pai rawa te mahi a Animated WebP mō ngā tākaro i raro i te 10 sekona. I tua atu i tērā, ko ngā pūrere faila (ko te GIF te mea tino kāore i te whakawhāiti i te rārangi). Mō ngā whakatangi roa ake, ka ūngatia te WebP, APNG rānei, e rua e whakamahi ana i te whakawhāiti ā-wāhanga-kōrero-whitiāhua me te tauine pai ake.

GIF whakaata: 2 ki te 8 MB i te 480p e ai ki te matatinitanga o te nekeneke. WebP whakaata: 200 KB ki te 1 MB i te rongoā ōrite / āhuatanga. Ko te WebP whakaata 5 ki te 10 ngā wā nui ake i te GIF mō te āhuatanga ā-whakaahua ōrite. Ka whakarato rā anō te WebP i ngā āhuatanga ngaro me te kore ngaro, me te mārama ā-arawhiti me te whakaata i te taha kotahi.

Mā te pūmau ka whakamōhio mai mātou ki te 15 fps mō te GIF whakaata (e āhei ana ki te whakamātautau i runga ake i te 25 fps) me te 24 fps mō te WebP / APNG whakaata (e whakahaere ana i ngā mokatere tiketike ake). Whakapae mā te kōwhiringa whārite mēnā ka tautokona e tōmu kaitirotiro te mokatere pūtake.

Kāore — kāore ngā āhuahira WebP whakangākau (GIF, WebP, APNG) e rokiroki ai i te oro. Mēnā e hiahiatia ana e koe te oro, ka ūnga ki tētahi tahuri ataata (MP4, WebM) kaua ki tētahi āhuahira whakaahua whakangākau.

He — ko te kōwhiringa ripanga-tau e whakahaere ana mēnā he mutunga kore te WebP ripanga (whakahaere), ka tākaro N wā, ka tākaro rānei i te kotahi. Ka rokirokitia te tatau ripanga ki te WebP metadata kontener me te whakawhiwhia ki ia kaiwhakamatau hou.

E rua nga take noa iho. Tuatahi, ko te whakaiti i te rārangi-rārangi: 15 fps WebP mai i te 60 fps MP4 e whakaiti ana i te 75% o ngā tāruatanga; ka whakaotitia me te tāruatanga rārangi-rārangi. Tuarua, ko te whakarārangitanga o te rārangi: Ka whakawhāititia te GIF ki te 256 ngā tae me te tauine-tōtō-tōtō MP4. Ka huri ki te WebP whakairo hei pono-whāiti.

He — ka whakamōhio te kōwhiringa whakarerekē i te MP4 ki raro i te whakawāteatanga rārangi, e whakaiti ana i te rahi o te pūkete WebP. Ko te 480p WebP mai i te 4K MP4 e tata ana ki te 16x iti iho i te 4K WebP. Ka whakamahia te /video-cutter/ mō te whakawhāiti i tētahi hipanga motuhake.