MP4 → HLS

Guqula Eyakho MP4 kuya HLS amafayela kalula

Khetha amafayela akho

noma cindezela bese ususa amafayela akho lapha

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Tshintsha amafayela mahhala, Pro abasebenzisi bangaguqula amafayela amakhulu kakhulu; Bhala manje

Ukulayisha

Indlela yokuguqula MP4 kuya HLS

Isinyathelo 1: Layisha eyakho MP4 amafayela usebenzisa inkinobho engenhla noma ngokuhudula bese uphonsa.

Isinyathelo 2: Chofoza inkinobho ethi 'Guqula' ukuze uqale ukuguqulwa.

Isinyathelo 3: Landa i-version yakho HLS amafayela

MP4 kuya HLS Imibuzo Evame Ukubuzwa Yokuguqulwa

Ngiyifaka kanjani ikhowudi MP4 ku HLS ngaphandle kokulahlekelwa ukhwalithi yevidiyo?

Ukufaka ifayela lakho MP4 futhi hlela Quality to High Quality in the conversion options. That re-encodes the video at the highest quality setting (CRF 18 for H.264 and VP9 output), which keeps the most detail at the cost of a larger file. The default, Balanced, uses the standard setting. The HLS output gets a codec its container supports: H.264 for MP4, MOV and MKV, VP9 for WebM. Kuyinto encane kakhulu ukuthi wonke ama-MP4 aphilayo ayizividiyo ze-H.264 ezinesandi se-AAC; isiqukathi sigcina ngokusemthethweni i-HEVC, AV1 ne-VP9. Uhlelo lwe-HLS luyi-.m3u8 manifest olukhombisa i-H.264 noma i-HEVC segments nge-bitrates eziningi, ngakho-ke umdlali angashintsha umgangatho phakathi kokudlala.

Ingabe i-HLS ingagcina ama-tracks omsindo angaphezu kwesinye?

Yebo, futhi kuyithuthukiso eliyiqiniso ku MP4. HLS iphatha wonke umsindo njengohlelo oluhle, ngakho-ke umsindo ovela ku-language, i-dub kanye nombhali we-comment ungahlala kuhele olulodwa nomdlalo oshintsha phakathi kwazo uma kudingeka. HLS ilungele ukusakazwa kwe-bandwidth yokubuka ngesikhathi sangempela futhi iyifomethi yokubuka kuphela i-Safari ne-iOS exhaswe ngokusemthethweni.

Ingabe HLS iyibhokisi noma i-codec, futhi ngabe lokhu kushintsha lokho engikutholayo emuva?

Ishintsha ukuthi yini ongayilindele kuhele lwesingeniso. Ingxenye eyodwa yokuguqulwa ibizwa ngokuthi ukungenisa ngaphandle, hhayi ukupakisha, ngakho lokho okubuyayo ukuthi i-bitstream ngaphakathi kwebhokisi elifanele kakhulu — ngokuvamile MP4 noma MKV. Uhlelo lubonisa ibhokisi; i-codec yilokho okusho ubukhulu befayela futhi lapho izodlala khona.

Yini i-codec yevidiyo i HLS isebenzisa?

Kuxhomekeka ku HLS isiqoqi. MP4, MOV kanye MKV output ukusebenzisa H.264, okuyinto idlala ku ngempela wonke ifoni, ibrowser kanye TV. WebM output usebenzisa VP9. AVI, WMV kanye MPEG output ukusebenzisa codecs older labo amafomethi akhiwa. HLS Apple HTTP Live Streaming - hhayi ifayela kodwa playlist kanye nefolda yezinhlayiyana zemidiya ezincane.

Ingabe umsindo wami uzohlala ukhona MP4 kuya ku HLS?

Yebo, umsindo omkhulu ohambayo udlula, uphinde ukhodwe ku-codec i-HLS idlala, isibonelo, i-AAC ku-MP4 ne-MOV noma i-Opus ku-WebM. Ukuguqulwa okuningi kugcina kuphela umsindo owodwa (omunye onezintambo eziningi), ngakho-ke izilimi ezihlukile nezibuyekezo zilahlekile. MP4 kuya ku-MOV, ne-AVI, WMV, MPEG, FLV, VOB noma M4V kuya ku-MKV, gcina wonke umsindo ohambayo.

Ingabe ngigcina ifreyimu yesiqalo uma ngiguqula MP4 ku HLS?

Yebo. Izinga lefreyimu ligcinwa ngaphandle kokuthi ushintshe: i-24 fps MP4 ihlala i-24 fps ku-HLS. Uhlelo lwezinga lefreyimu lingaguqulwa libe yi-60, 30 noma i-24 fps. Lishintsha kuphela inani; alisusanga ividiyo noma lisuse i-3:2 pulldown.

Ingabe ubukhulu befayela bushintsha kanjani kusuka ku MP4 kuya ku HLS?

Kuxhomekeka kulokho okwenzekayo kuvidiyo. MKV MP4 noma MOV nge default izilungiselelo ikhophi ividiyo umfutho engashintshiwe, ngakho ubukhulu ihlala eduze komthombo. Ezinye izibini eziningi ziphinde zikhophi: a high-bitrate MP4 ngokuvamile ephuma ncane, ngenkathi ekhona kakhulu ecindezelwe eyodwa ingakhula. Ifayela elincane ngaphansi Quality inikeza inzuzo encane, futhi H.265 ku Codec isilungiselelo (MP4, MOV ne MKV) ngokuvamile ncane kuna H.264 ku quality efana kodwa idlala ku amadivayisi ambalwa.

Ingabe ihele HLS lizodlala ku-iPhone, Android, ne-Smart TVs?

MP4 ne H.264 idlala kunoma iyiphi ifoni, i-browser kanye TV. MOV ne H.264 idlala kunoma iyiphi idivayisi Apple kanye TVs eziningi kodwa hhayi kunoma iyiphi ifoni Android edala. MKV idinga app ezifana VLC ku-iOS, futhi WebM ikhaya e-browsers. Akukho isisetshenziswa preset kule khasi, ngakho khetha ifomu injongo isisetshenziswa sakho sisekela. HLS ayiyona ifayela elilodwa elifinyelelekayo — ukuze ligcinwe lingekho ku-inthanethi kufanele liphinde lihlukaniswe ibe yindawo yokugcinwa ejwayelekile kuqala.

Ingabe kuthatha isikhathi esingakanani ukushintsha i-MP4 ividiyo yehora elilodwa ibe yi-HLS?

Akukho isikhathi esiqinile: sixhomekeke kude, isixazululo kanye nefomethi efanelekayo. Ukuguquka kuqhutshwa kumaseva ethu we-CPUs ngesoftware encoders; akukho GPU ukukhawulelwa. MKV kuya MP4 noma MOV ngezinhlelo ezijwayelekile zikopishe umsinga wevidiyo futhi zisheshe. Ukuphinda-ukuguqula ku-H.264 kuthatha isikhathi eside, futhi WebM (VP9) yinjongo ehamba kancane, izikhathi eziningi ezihamba kancane kune-H.264 ezivivinyweni zethu.

Yini isixazululo esiphezulu esixhaswe yi MP4 kuya ku HLS?

Umguquli awunakho ubukhulu obuphelele obuphelele; umkhawulo ubukhulu bokufaka obuvunyelwe kuhlelo lwakho, futhi ubukhulu buhlala bukhona uma ungakhethanga 1080p, 720p noma 480p. Akukho HDR ukucubungula noma ukumayelana nombala. Uma ividiyo ikhophiwe (MKV kuya MP4 noma MOV ngezinhlelo ezijwayelekile), HDR10 idlula ngaphandle kokuchofoza. Ukuphinde ubhale kabusha i-HDR10 mastering metadata, futhi ngekhwalithi, ubukhulu noma i-frame rate ilungiselelo ezinye izibini zikhuphula ividiyo kumbala we-8-bit, ngakho-ke i-HDR MP4 ingabonakalisa i-washed out.

Ingabe i-MP4 yami yevidiyo ifihlakele ngesikhathi sokuguqulwa ku-HLS?

Yebo. Amafayela MP4 alayishwe phezulu aphathwa kumaseva ethu okuguqula, akukho muntu obhekana nawo, futhi angeke ahlukaniswe. Ukulayishwa kanye nokuguqulwa kwe HLS kususwa ngokuzenzakalela cishe amahora angu-24 ngemuva kokuguqulwa, okushiya isikhathi sokulanda imiphumela. Bona /privacy/ ukufinyelela kunqubomgomo egcwele.

Ingabe ngingakwazi ukugoqa, ukucisha, noma ukujikelezisa ngesikhathi sokuguqulwa MP4 kuya ku HLS?

Akunakwesokudla. Sebenzisa /trim-video/ noma /video-cutter/ ukucisha i-MP4 kuqala, noma /rotate-video/ ukujika, bese uqhuba i-MP4 ukuya ku-HLS. Ukucisha kuqala kusheshe kunaku-encoding kabusha i-MP4 yonke ukushiya izithombe ezingasebenzisi.

MP4

Ifomethi yesitsha se-MP4 ingagcina ividiyo, umsindo, imibhalo engezansi, nezithombe kufayela elilodwa ngokucindezela okuhle kakhulu.

HLS

I-HLS (Ukusakaza bukhoma kwe-HTTP) iphrothokholi yokusakaza bukhoma eyakhiwe i-Apple ukuze ilethe okuqukethwe komsindo nevidiyo nge-inthanethi. Ihlinzeka ngokusakaza okuguquguqukayo kokusebenza okungcono kokudlala.