M4V → MPG

Kāore e taea te tīpako, nā te mea kāore he pūwhitinga pūāhua-whakaahua mārō a MPG hei pupuri i a rātau. E rua ngā ara kia puta mai: ka whakamārō i a rātau ki roto i te ataata i te wā o te tahuritanga, e noho ai rātau ki te noho tonu, ki te kore āhua, ki te whakawātea rānei i a rātau hei.srt motuhake i te taha o te MPG mō te pūpāho hei whakarewa. E kī ana te kaiwhakarere ki a koe he aha i mahi ai, kaua e whakawātea i a rātau. Ka tukua e MPG ngā whakawhāiti katoa o MPEG-2 — te mokatere bit taumaha, te whakawhāititanga, kāore he whakarārangi māmā — tae atu ki te whakawāteatanga o ngā whakaroatanga e rua mō tētahi hanga.

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.

Nā te mea he maha ngā pūrere kāore i ako i tētahi mea hōu, kāore hoki ka āhei. Ko ngā kaiwhakaari DVD, ngā wae o te waka, ngā āhuatanga whakaterenga kāmera, ngā whakaaturanga mahi me te maha o ngā pūrere whakateretanga e whakaae ana ki MPG ā, kāore anō ētahi atu. Ko te tahuritanga he hipanga tūturu ki raro i te mātauranga, i hokona hei whakawhitinga mō te mahi i tētahi pūrere kāore he kōwhiringa anō. Ko MPG te whakaroanga o te pūmanawa tuhituhi DVD, e mōhiotia ana e ngā kāmera tawhito me ngā utauta whakateretanga pāohotanga, nā reira ka noho whai hua tonu mō ēnei pūtautau.

He — ko ia whakataki oro i roto i te M4V (whakaaro a te kaiwhakahaere, reo whirinoa, oro whakaahua) ka tiakina ki te MPG 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 MPG te rerenga papatono MPEG ōrite ki te.mpeg — ko te whakaroatanga tuhipoka e toru he whakaroatanga o te wā DOS, ehara i te hanga rerekē.

Ka ora ngā whakahuatuhi māmā (ngā rererangi ka tīpakohia) ina taea e MPG 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 MPG 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 MPG 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 MPG ka whakapeka ēnei tātai ina kore te MPG 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 MPG 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 MPG 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 MPG 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 MPG 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 MPG mō ngā ūnga raruraru.

Ko te kōaro ōrite-kōrero remux e whakaputa ana i tētahi rahi tata tonu (he rerekē te taumaha o te kāwai e 0.1–2%). Ka taea e te huringa kōaro te huri i te rahi e 50%, neke atu rānei: H.264 ki H.265 e haurua ana i te faila i te āhuatanga ā-whakaahua ōrite; H.264 ki AV1 e haurua ana anō i runga i tētahi tauwhāiti pōturi. Ko te haere mai i tētahi bitrate tiketike M4V (Blu-ray rip) ki tētahi bitrate iti MPG (whakahaere i te Wīwī) ko te take tino noa mō te hinganga nui.