M4V WebM

Tahurihia Tō M4V Tuhinga o mua WebM kōnae ngawari

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Me pēhea te huri M4V Tuhinga o mua WebM

Hipanga 1: Tukuatu tō M4V 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 WebM kōnae


M4V Tuhinga o mua WebM Ngā Pātai Auau mō te Tahuritanga

He pēhea te tahuri i a au i te M4V ki te WebM me te kore whakawaehere i te rerenga ataata?
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Ki te taea e ngā M4V me WebM ngā kāwai te mau i te pūrere ōrite (H.264, H.265, VP9, AV1), ka hoki te whakarerekē ki tētahi remux: ka tāruatia ngā rerenga taketake ki roto i te WebM kāwai, ā, ko te wrapper anake e huri ana. Ko te remux o te 1 GB M4V ki WebM e mutu ana i roto i ngā wā 5-15 me te ngaronga āhuatanga kore. Ko te hanganga o te M4V he MP4 — H.264, HEVC rānei me AAC — me te Apple FairPlay DRM kōwhiria me te iTunes wāhanga metadata. He whāiti te WebM: VP8, VP9 rānei te ataata (AV1 ināianei) me te Vorbis, te oro rānei, me ētahi atu.
Kāore i te āhua tika. M4V e rokiroki ana i ngā aho maha hei whakataki ā-ira tuatahi, engari he āhua kore tonu te WebM tautoko whakataki i muri i te whakataki tuatahi, nā reira ko te nuinga o ngā kaiwhakaari ka whakaaturia anake tētahi. Ka kōwhiria te whakataki e hiahiatia ana e koe i mua i te tahuri; He pai ake te whakawātea i ētahi atu ki o rātau ake pūkete i te waiho i roto i tētahi kāwai e whakawātea ana i a rātau. E pupuri ana a M4V i ngā tohu wāhanga, i ngā mahi toi me ngā whakataki whakahuatuhi i roto i te āhua e tūmanako ana te Apple TV ki te taupānga, e ngaro ana i te nuinga o te wā te MP4 noa iho. He kino te WebM i tētahi wāhi i waho o te kaiwhaiwāhi — ko ngā kaiwhakawhanake ataata, ngā whare karakia taketake o ngā tāuru me ngā Smart TV e tino whakakāhore ana i a ia.
Tata tonu ki te DRM i ngā wā katoa. Ko ētahi M4V ngā pūranga e whakawaeheretia ana i te taumata bitstream e te puna, i te pūmanawa rānei i tukuna ai rātou, ā, kāore e taea te whakawaehere i tētahi rerenga whakawaeheretia e tātau, e tētahi atu rānei me te kore te kī ā-whakahaere. Ko ngā pūranga i whakahuatia e koe, i whakawātea, i whakawāteatia rānei i te whakarerekētanga kāore i te parea; kāore e taea e te hoko ā-whakahaere, ā, kāore e taea e te kaiwhakarere te whakaū i tētahi atu mea. Kāore e taea te tahuri i ngā hokonga M4V i parea e DRM; ko ngā pūranga M4V kāore i parea anake e taea te tahuri, ā, ko ngā kaiwhakaari kāore i te Apple e hiahiatia ana te whakaroa.
Heoi, ā, ko te tikanga ko te take katoa mō te tahuritanga. Ko tētahi M4V i whakawāteatia i roto i tētahi pātaka whatunga, e whakaatu ana i tētahi kaiwhakaari whakarewa, he whakahau rānei i tētahi whakataki, nā te mea kāore he whakawātea mō te whakawāteatanga. WebM e whakawāteatia ana i roto i te huānga o te HTML5 māori me te kore tātai, me te kore taupānga o waho. Ka tākaro ā-iwi te WebM i ia kaitiaki o nāianei me te kore tāpiri, kāore he utu ātete, ā, kāore he whakaaturanga ā-patenta, e noho ana hei tīpāho mō te ataata whakawaitara-wārangi.
E pupuri ana i ngā ōritetanga i reira ka haere te faila, nā te mea kāore e pai ake i te whakarārangi. Ko tētahi o ēnei e rua e hangaia ana mō te ōritetanga whakapāpāho, ā, ko tētahi atu mō te pupuri i ngā mea katoa ka taea e tētahi faila te pupuri, ā, ka whakawhitiwhiti rātou ki a rātou anō i runga i taua raina. Ko te whakautu ā-pūnaha mō te nuinga o ngā puna ko te pūranga i roto i te pūrere āhuahira-tōtika me te whakawātea ki te ōrite i te tono.
He — ko ia whakataki oro i roto i te M4V (whakaaro a te kaiwhakahaere, reo whirinoa, oro whakaahua) ka tiakina ki te WebM ina tautokona e te pūrere te oro-maha. MKV me MOV e whakahaere ana i ngā whakataki oro kāore i te whakawātea; he maha ngā MP4 e tautoko ana, engari ko ētahi kaiwhakaari pūrere e kite ana i te whakataki 1 anake; Ka whakawāteatia te WebM i te whakataki Opus / Vorbis kotahi. Ko te WebM he huinga iti o Matroska i whakaputaina e Google i te tau 2010 hei whakarato i te pouaka whakaata HTML5 me te kore utu.
Ka ora ngā whakahuatuhi māmā (ngā rererangi ka tīpakohia) ina taea e WebM te mau i a rātou: MKV kei roto i te SRT, ASS, SSA, PGS, VobSub māori; MP4 kei roto anake i te mov_text (he hanga whakawātea). Ko te tahuritanga o tētahi MKV me ngā whakahuatuhi āhua ASS ki MP4 ka whakaiti i a rātou ki te mov_text, ka whakarewa rānei i a rātou. Ko ngā whakahuatuhi matatini (i whakarewatia ki roto i te ataata) ka mau i a rātou ahakoa pēhea.
Ka whakawhitia ngā raraunga meta i waenganui i te M4V me te WebM ina tautokona e ngā kāwai e rua tētahi ngota wāhanga (MKV, MP4, MOV). Ka penapena te WebM i ngā wāhanga i roto i tētahi kōpaka Matroska-hōpū, kia mārama ai ngā wāhanga MKV <-> WebM. Kāore he whakapūtā wāhanga a AVI, nā reira ka tahuri te tahuri AVI ki te WebM i tētahi pūranga kāore i te whakarārangi, engari rawa ka tāpiri i ngā tohu ā-ringa.
Ko MKV te mea anake e pupuri ana i ngā pūkete whakapiripiri (ngā tātuhi TTF mō ngā tātai ASS, ngā toi kāwai JPG, ngā tāurunga PDF i whakamāoritia). E haere ana mai i te M4V ki te WebM ka whakapeka ēnei tātai ina kore te WebM he MKV — ka tahuri ngā rerenga taketake, engari ka noho te utu whakapiripiri i te pūtake. Whakataki M4V hei tiaki i ētahi atu tātai mēnā e whakawhirinaki ana ki ngā tātai whakapiripiri.
E kōwhiritia ana te pūnaha waeheretanga pūnoa hei ōrite ki te WebM kaitakawaenga: MKV ngā pūnoa ki H.265 (HEVC) mō te whakawhāititanga pai ake; MP4 ngā pūnoa ki H.264 mō te tautoko pūrere whānui rawa; WebM ngā pūnoa ki VP9; AVI e whakamahi ana i te MPEG-4 ASP (DivX/Xvid lineage). Ka whakawātea mā te whakawātea codec hōhonu — Kei te wātea te AV1 mō MKV / WebM i reira e hiahiatia ana e koe te whakawhāititanga nui rawa, ā, ka taea te tūmanako mā te waehere.
Ko te metadata HDR takoto (HDR10 nga uara whakaaturanga matua, te taumata mārama ihirangi) e mau ana ki te WebM ina tautokona e ngā kāwai me te pūāhua kōaro i kōwhiria (HEVC, AV1 i MKV / MP4). He nui ake te pōturi o Dolby Vision — ko te tātai DV 5 / 7 / 8.1 i te M4V e ora noa ana ki te MKV me HEVC; te tahuri ki tētahi WebM kāwai kāore e mau ana i te apa DV ki te HDR10.
MKV me te WebM e whakataki ana i ngā rārangi wā-whāiti tūturu, ā, ka whakahaeretia e VFR māori, nā reira M4V VFR e ora ana ki tētahi WebM o ēnei hanga kāore i te tāurunga. MP4 e pupuri ana hoki i ngā rārangi wā, engari ko ētahi kaitapere e whakaaro ana ki te CFR; Ka whakaaturia e te tahuri tētahi "pūngao CFR" e whakamātau ana i te VFR M4V ki te 24 / 30 / 60 fps WebM mō ngā ūnga raruraru.

M4V

M4V Ko te hōputu kōnae ataata whakawhanakehia e Apple. He rite ki te MP4 me te whakamahia mo te purei ataata i runga i nga taputapu Apple.

WebM

Kua hangaia a WebM mō te tukutuku, e tuku ana i te roma ataata kore utu me ngā kōtēke VP8/VP9.


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