Isikhokelo seSetingi zoMgangatho woKusasaza
Isikhokelo esibanzi sokukunceda uqonde isikhokelo somgangatho wostrimisho lwesetingi.
Ukuqonda iSigqibo seVidiyo kunye neBitrate
Isisombululo sevidiyo simisela inani leepixels eziboniswe kwiscreen, ezichaphazela ngqo ukucaca okubonakalayo kunye neenkcukacha. Izigqibo zokusasaza eziqhelekileyo ziquka i-720p (1280×720), 1080p (1920×1080), kunye ne-4K (3840×2160). Izisombululo eziphezulu zibonelela ngemifanekiso ebukhali kodwa zifuna i-bandwidth engaphezulu kunye namandla okusebenza. Kwiinkqubo ezininzi zokusasaza, i-1080p ibonelela ngebhalansi engcono phakathi komgangatho kunye nokusebenza. I-Bitrate ilawula ukuba ingakanani idatha esetyenziswayo ngesekhondi nganye yevidiyo, ilinganiswa ngeekhilobhithi ngesekhondi (kbps) okanye i-megabits ngesekhondi (Mbps). I-bitrate ephezulu igcina ulwazi olubonakalayo ngakumbi, inciphisa izinto zakudala zoxinzelelo ezifana ne-pixelation kunye nobumnyama. Nangona kunjalo, i-bitrate egqithisileyo inokubangela imiba ye-buffering kubabukeli abanoqhagamshelo olucothayo lwe-intanethi. Isitshixo kukufumana eyona bitrate yesisombululo sakho esigcina umgangatho ngelixa uqinisekisa ukudlalwa okugudileyo kuzo zonke izantya zoqhagamshelwano. Ubudlelwane phakathi kwesisombululo kunye ne-bitrate ibalulekile kwimpumelelo yosasazo. Umjelo we-1080p ufuna i-3,000-6,000 kbps ngomgangatho olungileyo, ngelixa i-720p imisinga isebenza kakuhle kwi-1,500-4,000 kbps. Olu luhlu luxhomekeke kuhlobo lomxholo – imiboniso ehamba ngokukhawuleza efana nemidlalo okanye imidlalo ifuna i-bitrate ephezulu kunemiboniso engashukumiyo okanye iividiyo ezithethayo.
Iisetingi zoMgangatho weAudio yokuHamba
Umgangatho weaudio uchaphazela kakhulu amava ababukeli, ukanti uhlala ungahoywa ngokuthanda useto lwevidiyo. I-audio bitrate imisela ukucaca kunye nobutyebi besandi kumjelo wakho. Kwiimeko ezininzi zokusasaza, i-128-320 kbps ibonelela ngomgangatho obalaseleyo womsindo ngaphandle kokutya i-bandwidth egqithisileyo. Imijelo egxile kumculo izuza kwi-bitrate ephezulu (256-320 kbps), ngelixa umxholo welizwi kuphela usebenza kakuhle kwi-96-128 kbps. Ireyithi yesampulu kunye nobunzulu bebit ezisisiseko zeeparamitha zomsindo ezichaphazela umgangatho. Ireyithi yesampulu ye-44.1 kHz enobunzulu be-16-bit ihambelana nomgangatho we-CD kwaye isebenza ngokugqibeleleyo kustrimisho. Iisetingi eziphezulu njenge-48 kHz/24-bit zibonelela ngophuculo olungephi kodwa zonyusa ubungakanani beefayile kakhulu. Uninzi lwamaqonga okusasaza ngokuzenzekelayo ajongana nokuguqulwa kweaudio, ke ukugxila kumanqanaba angaguqukiyo kunye neendlela ezicacileyo zokurekhoda zihlala zibalulekile ngaphezu kweenkcukacha zobugcisa. Iicodecs zomsindo ezifana ne-AAC zibonelela ngokugqwesileyo koxinzelelo, ukugcina umgangatho kwi-bitrate esezantsi xa kuthelekiswa neefomati ezindala. Amanqanaba esandi afanelekileyo abalulekile- ajolise kumanqanaba aphezulu phakathi kwe–6dB kunye ne-12dB ukuthintela ukunqunqa ngelixa ugcina umlinganiso olungileyo wesignali ukuya kwingxolo. Qwalasela uhlobo lomxholo wakho xa useta iiparamitha zeaudio: imijelo yokudlala idinga unxibelelwano lwelizwi olucacileyo, iingoma zomculo zibeka phambili ukuthembeka, kwaye umxholo wezemfundo ufuna intetho engaguqukiyo, eqondakalayo.
Iisetingi zeKhowudi kunye noPhuculo lokuSebenza
Iikhowudi zeHardware kunye nesoftware nganye ibonelela ngeengenelo ezahlukileyo zokusasaza usetyenziso. Ii-encoders ze-Hardware (ezifana ne-NVENC ye-NVIDIA okanye i-Intel Sync) ibonelela ngokusebenza okugqwesileyo okunempembelelo encinci ye-CPU, ibenza balungele imijelo yokudlala okanye usetyenziso olunzulu lwezixhobo. Baphatha ukufakwa kweekhowudi ngexesha lokwenyani kodwa banokuncama umgangatho othile xa kuthelekiswa nezinye iindlela zesoftware. Iikhowudi zeSoftware ezifana ne-x264 zihambisa umgangatho ophezulu kwi-bitrate efanayo kodwa zifuna izixhobo ezibalulekileyo ze-CPU. Izithuba ze-keyframe ezingundoqo, ezikwabizwa ngokuba yi-GOP (Iqela leMifanekiso) ubude, bumisela ukuba kukangaphi na izakhelo ezipheleleyo zihanjiswayo. Uninzi lwamaqonga okusasaza ancoma amaxesha e-keyframe ye-2-4 imizuzwana. Amaxesha amafutshane aphucula ukuchaneka kokufuna kwaye anciphise ixesha elifunekayo ukuqala ukudlala, kodwa anyusa ukusetyenziswa kwe-bandwidth. Amaxesha amade agcina i-bandwidth kodwa anokubangela imiba ngokuzinza komjelo kunye namava ombukeli ngexesha lokuguquguquka kwenethiwekhi. I-Encoder imisela umgangatho wolungelelwaniso ngokuchasene nesantya sobhalo kunye nokusetyenziswa komthombo wenkqubo. Ukusetha kwangaphambili okukhawulezileyo kuvumela ukusasazwa kwexesha lokwenyani kwihardware yesiphelo esisezantsi kodwa kunokwazisa izinto zakudala zoxinzelelo. Iiseti ezicothayo zivelisa umgangatho ongcono kodwa zifuna amandla okuqhubela phambili. Ukusasaza bukhoma, ukusetha okuphakathi ukuya kwisantya esikhawulezayo ngokuqhelekileyo kusebenza ngcono, ngelixa umxholo orekhodiweyo unokusebenzisa useto olucothayo lomgangatho ophezulu. Izicwangciso zeprofayili kunye nenqanaba kufuneka zihambelane nezixhobo zakho ezijoliswe kuzo – Iprofayili ephezulu isebenza kwizixhobo zanamhlanje, ngelixa iprofayili yesiseko iqinisekisa ukuhambelana ne-hardware endala.
I-Platform-Specific Quality Requirements
Iiplatifti ezahlukeneyo zokusasaza zineemfuno ezizodwa zomgangatho kunye nemida echaphazela ngokuthe ngqo ukhetho lwakho lwesetingi. I-Twitch icebisa ubuninzi bebitrate ye-6,000 kbps kumaqabane kunye ne-3,500 kbps kumalungu, kunye ne-1080p60 ibe ngumda ophezulu osebenzayo kuninzi lwabasasazi. I-YouTube Live ixhasa i-bitrate ephezulu ukuya kuma-51,000 kbps kumxholo we-4K, kodwa ababukeli abaninzi abazukuzuza kwiisetingi ezigqithisileyo. Facebook Live caps imisinga kwi-4,000 kbps, isenza i-encoding esebenzayo ibaluleke kakhulu ekugcineni umgangatho. Iqonga ngalinye lokufumaneka kwe-transcoding kuchaphazela isicwangciso sakho somgangatho. I-Twitch ibonelela nge-transcoding (ukhetho oluninzi lomgangatho) ikakhulu kumaqabane kunye namahlakani, okuthetha ukuba abasasazi abancinci kufuneka basebenzise i-bitrate ephakathi ukunqanda ukungabandakanyi ababukeli abanoqhagamshelo olucothayo. I-YouTube Live ibonelela nge-transcoding ngokubanzi, ivumela imisinga ephezulu yebitrate kuba ababukeli banokukhetha umgangatho ofanelekileyo. Ukuqonda le mida kukunceda ukhethe useto olukhulisa abaphulaphuli bakho. Ukuthathelwa ingqalelo kombukeli weselula kubaluleke ngakumbi kuwo onke amaqonga. Ababukeli abaninzi babukela imijelo kwii-smartphones ezinomda olinganiselweyo, okwenza imilambo ye-720p ifikeleleke ngakumbi kunezinye iindlela ze-1080p. Cinga ngedemografi yabaphulaphuli bakho xa ukhetha useto olusemgangathweni – umxholo wezemfundo unokubeka phambili ukuhambelana, ngelixa umxholo womdlalo unokugxininisa ukucaca okubonakalayo kubabukeli ababandakanyekayo abanonxibelelwano olungcono.
Ukusasazwa okuguquguqukayo kunye nokuKhawulwa koMgangatho
Ustrimisho oluguquguqukayo luhlengahlengisa umgangatho ngokusekwe kububanzi bombukeli kunye nesakhono sesixhobo, siqinisekisa ukudlalwa okugudileyo kuzo zonke iimeko zenethiwekhi ezahlukeneyo. Le teknoloji ifuna iinguqulelo ezininzi ezisemgangathweni zomsinga wakho, oquka i-480p, 720p, kunye ne-1080p eyahlukileyo. Uninzi lwamaqonga amakhulu aphatha eli cala leseva, kodwa ukuqonda inkqubo kunceda ukwandisa useto lomgangatho wemithombo yakho ukuze ufumane iziphumo ezingcono kuzo zonke iinguqulelo ezilinganisiweyo. Iileli ze-Bitrate zichaza iisetingi ezithile zomgangatho ngamnye kwinqanaba lokuhambisa oluguquguqukayo. Ileli eqhelekileyo inokuquka i-1080p ku-5,000 kbps, 720p ku-2,500 kbps, kunye ne-480p ku-1,200 kbps. Olu lungelelwaniso luqinisekisa umgangatho wokubonwayo ongaguqukiyo kuzo zonke izisombululo ngelixa uvumela imida yobubanzi obahlukeneyo. Iiplatforms zisebenzisa ezi ileli ukuba zitshintshe ngokuzenzekelayo amanqanaba omgangatho ngexesha lokudlala, ukugcina amava angcono kakhulu kuqhagamshelwano lombonisi ngamnye. Umgangatho womthombo womthombo uchaphazela ngokuthe ngqo zonke iinguqulelo ezilinganisiweyo, okwenza ukuba useto lwakho lokuqala lwekhowudi lubaluleke kakhulu. Umthombo ongekho mgangathweni uya kukhokelela ekuthotyweni kwemijelo enesombululo esisezantsi, ngelixa ibitrate ephezulu kakhulu ayinakuphucula ukubonwa kokugqibela. Injongo yemithombo yomthombo ecocekileyo, efakwe kakuhle kwi-bitrate efanelekileyo – oku kubonelela ngesiseko esilungileyo seenkqubo ze-transcoding zeqonga ukwenza iileli ezisemgangathweni kubo bonke ababukeli.
Izinto eziphambili zokuThatha
Isisombululo kunye neBalance yeBitrate
Olona mgangatho ulungileyo wokusasaza uvela kwisisombululo esihambelanayo kunye ne-bitrate kuhlobo lomxholo wakho kunye namandla abaphulaphuli
- Sebenzisa 3,000-6,000 kbps for 1080p imisinga ngokuxhomekeke isindululo umxholo
- Cinga 720p ku 1,500-4,000 kbps ukuhambelana ngokubanzi
- Lungisa useto olusekwe kubukho beqonga lokuthumela iikhowudi
Iziseko zoMgangatho weAudio
Umsindo ocacileyo, ongaguqukiyo uhlala ubaluleke ngaphezu komgangatho ophezulu wevidiyo yokugcina ababukeli kunye nokwaneliseka
- Sebenzisa 128-320 kbps bitrate yomsindo ngokhowudo lwe-AAC
- Gcina amanqanaba omsindo phakathi kwe -6dB kunye ne -12dB
- Tshatisa ireyithi yesampulu kumxholo: 44.1 kHz kuninzi lwezicelo
IziCwangciso zokuPhucula iKhowudi
Iisetingi ze-encoder ezihlakaniphile zongeza umgangatho ngelixa ugcina ukusebenza kwenkqubo kunye nokuzinza komjelo
- Khetha iikhowudi zehardware yokusebenza, isoftware yomgangatho
- Cwangcisa izithuba ze-keyframe ukuya kwi-2-4 imizuzwana yokuhambelana kweqonga
- Sebenzisa iiseti eziphambili zokusasaza ngqo, useto olucothayo lokurekhoda
Imibuzo ebuzwa qho
Sesiphi esona sisombululo silungileyo sabasasazi abatsha abaqalayo?
I-720p kwi-30fps ene-2,500-3,500 kbps bitrate inika eyona bhalansi ilungileyo kubasasazeli abatsha. Oku kubonelela ngomgangatho olungileyo ngelixa uqinisekisa ukufikeleleka kubabukeli abanezantya ezahlukeneyo ze-intanethi, kwaye isebenza kakuhle ngaphandle kwenkxaso yokudlulisa iikhowudi kwiqonga.
Ndazi njani ukuba ibitrate yam iphezulu kakhulu kubaphulaphuli bam?
Beka iliso kuhlalutyo lomjelo wakho kwimiba ye-buffering kunye neepateni zokuyeka umbukeli. Ukuba ababukeli bahlala bexela isithintelo okanye uhlalutyo lwakho lubonisa amazinga aphezulu okulahla, cinga ukuthoba ibitrate yakho. Qala ngamaqonga anconyiweyo aphezulu kwaye uhlengahlengise ukuhla ukuba kuyimfuneko.
Ngaba kufuneka ndibeke phambili isisombululo esiphezulu okanye izinga eliphezulu lesakhelo?
Oku kuxhomekeke kuhlobo lomxholo wakho. Imijelo yokudlala, ngakumbi imidlalo ekhawulezayo, izuza ngakumbi kumazinga aphezulu efreyimu (60fps) nakwisisombululo esisezantsi. Umxholo wezemfundo okanye osekelwe kwintetho usebenza kakuhle kwi-30fps kunye nesisombululo esiphezulu sokucaciswa kwesicatshulwa.
Zeziphi iisetingi zeaudio ezisebenza kakuhle kukusasazwa komculo?
Kwimisinga egxile kumculo, sebenzisa i-256-320 kbps ye-audio bitrate nge-encoding ye-AAC kumlinganiselo wesampulu ye-48 kHz. Qinisekisa ukuba umthombo wakho weaudio ukumgangatho ophezulu kwaye unqande ukucinezelwa okugqithisileyo okunokonakalisa amandla omculo.
Ingaba ababukeli bemfonomfono baluchaphazela njani ukhetho lwam lweesetingi zomgangatho?
Ababukeli beselfowuni bahlala benomda we-bandwidth kunye nezikrini ezincinci, okwenza imisinga ye-720p isebenze ngakumbi kune-1080p. Ukuba uhlalutyo lwakho lubonisa ukujongwa okuphezulu kweselfowuni, cinga ngokulungiselela i-720p ukuphucula ukufikeleleka kunye nokunciphisa ibuffering.
Nguwuphi umahluko phakathi kwe-CBR kunye ne-VBR yokufakwa kweekhowudi kustrimisho?
I-CBR (i-Bitrate eqhubekayo) igcina usetyenziso oluzinzileyo lwe-bandwidth, iyenza ilungele ukusasazwa okuphilayo apho umthwalo wenethiwekhi ohambelanayo ubalulekile. I-VBR (i-Variable Bitrate) ihlengahlengisa ngokusekelwe kubunzima bomxholo, inika umgangatho ongcono womxholo orekhodiweyo kodwa unokubangela imiba yokusasazwa.
Kukangaphi ndifanele ukuhlengahlengisa isethingi yam yomgangatho wostrimisho?
Hlaziya useto lwakho lwenyanga ngokusekwe kuhlahlelo lomjelo, ingxelo yombukeli, kunye naluphi na utshintsho lweqonga. Uhlengahlengiso olukhulu kufuneka luvavanywe ngexesha leeyure ezingasebenziyo ukuze kuncitshiswe impembelelo kubabukeli abaqhelekileyo. Amaxwebhu atshintshileyo ukulandelela oko kusebenza kakuhle kumxholo wakho kunye nabaphulaphuli.
Sebenzisa Ulwazi Lwakho
Ngoku uyawaqonda amagama, zama uQinisekisa ukuze usebenzise oko ukufundileyo. Uguqulelo lwasimahla, olungenamda kwaye akukho akhawunti ifunekayo.