3GP Izixhobo

Guqula 3GP ukuya nokubuya kwiifomathi ezahlukeneyo

Malunga 3GP

I-3GP yifomati yesikhongozeli semultimedia ephuhliswe kwi-3G mobile phones. Inokugcina idatha yeaudiyo kunye nevidiyo kwaye iqhele ukusetyenziselwa ukudlala ividiyo ephathwayo.

Iindlela Ezisetyenziswa Ngazo Eziqhelekileyo

Mobile video
3G streaming
Phone video

3GP Imibuzo Ebuzwa Rhoqo Ngokuguqula

Yintoni i-3GP ifayile yevidiyo?

I-3GP yindawo yokugcina ividiyo egcina enye okanye ngaphezulu i-video stream, iingoma zesandi, kunye nesihloko esikhethiweyo. Iindawo zokugcina ezahlukeneyo zixhasa ii-codecs ezahlukeneyo, ngoko ukulungelelaniswa kuxhomekeke kumqolo ONokubakho ngaphakathi. Iifayile ze-3GP zincinci kwaye ziyi-decode kwizixhobo zekhompyutha ezibuthathaka kakhulu ezikwaziyo ukucinga, nto leyo eyenza ukuba ifowuni ezinomtsalane kunye nezixhobo zefowuni eziphantsi ziphinde zirekhode.

Ingaba ifayili 3GP ifana ne MP4 engaphantsi?

Uyilo lwazo lufana. 3GP ikhiwa ukusuka kwi ISO Base Media File Format ibhokisi yobeko i MP4 isebenzisa - umthi we atoms ugcina i media data kunye nesalathisi esitsho apho iframe nganye iqala khona. Le yisizathu sokuba uguqulelo phakathi kwabo luya kuba ngumqolo omtsha kunokuba uphinde ukhowudi: imijelo ikopiwe ngaphezulu engaxutywanga kwaye kuphela umqolo uphinde ubhalwe, othatha imizuzwana nakwifayile yobude bezinto eziluncedo. I-3GP yindawo yokugcina i-3GPP emiselweyo yefowuni eziqalayo, xa ividiyo ifuna ukufakela i-176x144 yekhusi kunye ne-2G yenkqubo yedatha.

Kutheni le nto ifowuni yam igcina konke njenge 3GP?

Kuba isixhobo sefowuni sikhowudisa nantoni na eyenza ichip yayo kwihardware, kwaye 3GP yiyo loo silicon yakhiwa kuyo. Inkqubo yekhamera ayifuni umbuzo - ibhala ifomati yesixhobo esikwaziyo ukuvelisa kwinqanaba le-frame epheleleyo ngaphandle kobushushu. Ukutshintsha emva koko kuqhelekileyo kwaye akubiza nto kwixabiso ukuba ukhetha injongo egcina umthwalo ofanayo.

Kutheni i-browser yam ingadlala ifayili 3GP?

Iibrawuzeri zithutha abacoci boluhlu olufutshane lweefomati, kwaye 3GP ayikho kuyo - ilayisensi, udidi lwe codec ivumela, okanye ubudala bayo bugcina ngaphandle. Ifayile ayilahli kwaye umdlali we desktop uya kuyivula, kodwa akukho nto oyenzayo kwiphepha izakwenza umkhangeli zincwadi uyenze. Ukutshintsha kwi web- native container yindlela ethembekileyo kuphela yokudlala ngaphakathi. I-3GP iphele kwizisombululo eziphantsi kunye nesandi esiphezulu sokuthetha-thethana; ukunyusa ayizukubuyisela inkcukacha ezingazange zithathelwe indawo.

Ingaba i 3GP iyadlala kwifowuni okanye kwiTV ngaphandle kokutywina ibhetri?

Iinkqubo zekhompyutha I-3GP igcina i-H.263 okanye i-MPEG-4 Inxalenye ye-2 yevidiyo ene-AMR yesandi sokuthetha esinomqolo omfutshane, zonke zilungelelaniswe kwi-bitrate encinci kunekhwalithi.

Ingaba ndimele ndigcine iifayile ezintsha njenge 3GP?

Ukuba into ephantsi kwendlela ifuna oku. Ifomati iyaqhubeka ivula, kwaye akukho mcimbi wokuguqula uvimba ongazibangela iingxaki, kodwa ayikwazi ukuqhubeka apho isixhobo okanye usebenziso luya khona. Kwanoma iyiphi into entsha, ifomati yangoku ayihlawuli nto engaphezulu kwaye ikhusela umjikelo olandelayo wombuzo kwiminyaka emininzi ezayo.

Apho i-subtitles ihamba khona kwifayili 3GP?

Ecaleni kwayo, okanye kwimifanekiso. 3GP ayinalo unikezelo lwesicatshulwa esingaphantsi sayo, ngoko ke ukhetho olubini luyi-sidecar.srt ifayili umdlali olayishe phantsi kwevidiyo, okanye ukucofa umbhalo kwi-frames ngexesha lokucofa kwakhona. I-sidecar igcina isicatshulwa esingaphantsi esihleli kwaye sitshintshe kodwa ihamba njengefayili yesibini elula ukulahleka; ukucofa ngaphakathi kuqhubeka nakuphi na utshintshiselwano kodwa akufuneki kuvalwa emva koko.

Kutheni le nto i-audio track enye kuphela ephila kwi 3GP yam?

Kuba loo nto yonke ifomati ihambisa ngokunyanisekileyo. Iindlela zesandi ezingaphezulu zingabhalwa kwi 3GP, kodwa uxhaso lokudlala emva kwesinye esikuqala asihambelani ngokwaneleyo ukuba izixhobo ezininzi zigcine enye kwaye zisuse ezinye. Ukuba umcebo unegqabaza okanye iilwimi ezimbini, khupha ezi zifayili zesandi ezihlukileyo kunokuba uthembele kuzo kwisiqulathi seefayili esifihlayo.

Kutheni uguqule 3GP ukuba enye ifomati video?

Gcina i-MP4 kwi-3GP xa ufuna ukudlala ngokubanzi - iiseva ze-web, ii-smart TVs kunye nezixhobo zokulungisa iinkqubo zonke zidlala i-MP4 ngokusemthethweni. Gcina kwi-WebM ukufaka i-web apho ubungakanani befayili obuncinci bubalulekile. Gcina kwi-MOV xa usebenza kwi-Final Cut okanye ezinye ii-Apple-native pipelines.

Ingaba uguqulelo lwe-3GP luphinda lukhowudi ividiyo?

Xa umbhali wekhowudi yomthombo ngaphakathi kwe-3GP ihambelana nomgcini-ziqu wenjongo siyi-remux ngaphandle kokuphinda siyi-encode (ikhawulezayo, engenakulahleka). Xa umbhali wekhowudi kufuneka atshintshe (umzekelo, i-HEVC ukuya kwi-H.264) ividiyo iphinde ikhowudiwe — ihamba phantsi, ngexabiso elincinci lomgangatho wohlobo.