Eminyakeni eyisishiyagalombili edlule, ngiye ngathuthela leli bhokisi lamakhasethi evidiyo ezindlini ezine ezihlukene kanye nendlu eyodwa. Amavidiyo omndeni kusukela ebuntwaneni bami.
Ngemva kwamahora angaphezu kuka-600 okusebenza, ekugcineni ngawafaka ekhompyutheni futhi ngawahlela kahle ukuze amakhasethi alahlwe.
Nansi indlela isithombe esibukeka ngayo manje:
Wonke amavidiyo omndeni enziwe edijithali futhi ayatholakala ukuze abukwe kuseva yemidiya yangasese
Lokhu kuholele eziqeshaneni zevidiyo ezingama-513. Ngayinye inesihloko, incazelo, idethi yokurekhoda, amathegi abo bonke ababambiqhaza, abonisa iminyaka yobudala ngesikhathi sokurekhoda. Yonke into ikuseva yemidiya yangasese amalungu omndeni kuphela akwazi ukufinyelela kuyo, futhi ukusingathwa kubiza ngaphansi kuka-$1 ngenyanga.
Lesi sihloko sikhuluma ngakho konke engikwenzile, kungani kuthathe iminyaka eyisishiyagalombili, nokuthi ungawufinyelela kanjani umphumela ofanayo kalula futhi ngokushesha.
Umzamo wokuqala ongenangqondo
Cishe ngo-2010, umama wathenga uhlobo oluthile lwe-VHS kuya ku-DVD converter futhi waqhuba wonke amavidiyo ethu asekhaya ngawo.
Ama-DVD okuqala aqoshwe ngumama (angazi ukuthi kwenzekeni ngezinhlamvu ezingekho)
Inkinga iwukuthi, umama wenza isethi eyodwa yamaDVD. Zonke izihlobo zihlala ezifundeni ezihlukene, ngakho-ke bekunzima ukudlulisa ama-disc nxazonke.
Ngo-2012, udadewethu wanginika la maDVD. Ngikopishe amafayela evidiyo futhi ngalayisha yonke into kusitoreji samafu. Inkinga ixazululiwe!
Ama-DVD aqoshwe amavidiyo omndeni kusitoreji Samafu we-Google
Emasontweni ambalwa kamuva ngabuza ukuthi ukhona yini owake wabona amakhasethi. Kuvele ukuthi akekho obhekile. Angizange ngibheke. Enkathini ye-YouTube, ukulanda amafayela amahora amathathu wokuqukethwe okungaziwa kufunwa izithombe ezithokozisayo kuwubuwula.
Umama kuphela owajabula: “Kuhle,” esho, “manje sesingawalahla wonke lamakhasethi?”
Oh-oh. Umbuzo omubi lo. Kuthiwani uma siphuthelwe okuthile okufakiwe? Kuthiwani uma amateyipu engenziwa edijithali ngekhwalithi ephezulu? Kuthiwani uma amalebula equkethe ulwazi olubalulekile?
Bengihlale ngizizwa ngingakhululekile ukulahla okwangempela kuze kube yilapho kuba nesiqiniseko esiphelele sokuthi ividiyo ikopishelwe kwikhwalithi ephezulu kakhulu ngangokunokwenzeka. Ngakho, kwadingeka ngehlele ebhizinisini.
Ngangingazi nokuthi ngangingenwa yini.
Akuzwakali kunzima
Uma ungaqondi ukuthi kungani kungithathe iminyaka eyisishiyagalombili namakhulu amahora, angikusoli. Nami ngacabanga ukuthi kuzoba lula.
Nansi indlela inqubo yokwenza idijithali ebukeka ngayo kusukela ekuqaleni kuya ekugcineni:
Ngokunembayo, yile ndlela ebukeka ngayo emcabangweni. Nakhu ukuthi kwenzeke kanjani ekusebenzeni:
Isikhathi esiningi sasichithwa kulungiswa lokho osekwenziwe kakade. Ngaqeda isigaba esisodwa, kwathi ngemva kwesigaba esisodwa noma ezimbili ngathola uhlobo oluthile lwephutha endleleni. Kwadingeka ngibuyele emuva ngiyokwenza kabusha. Isibonelo, ngithwebule ividiyo emakhasethini angama-20 ngaphambi kokuthi ngibone ukuthi umsindo ubungasavumelanisi kancane. Noma ngemva kwamasonto amaningi okuhlela, ngizithole sengikhipha ividiyo ngefomethi engeke isekele ukusakazwa kuwebhu.
Ukuze ngisindise ingqondo yomfundi, ngibeka inqubo njengokungathi iqhubekela phambili ngendlela ehlelekile ukuze ngingakugcini uhlehla njalo futhi wenza kabusha yonke into, njengoba bekufanele ngenze.
Isinyathelo 1 Thatha ividiyo
Kulungile, emuva ku-2012. Umama wayefuna ngempela ukulahla amakhasethi ayewagcine iminyaka engamashumi amabili, ngakho lapho siqala ukuhlangana, ngokushesha wanginikeza ikhadibhodi elikhulu. Waqala kanjalo-ke ukufuna kwami ukwenza idijithali.
Isinqumo esisobala kwaba ukuphathisa ochwepheshe umsebenzi. Izinkampani eziningi zenza idijithali, kanti ezinye zisebenza ngokukhethekile kuvidiyo yasekhaya.
Kodwa ngizwela kakhulu ngobumfihlo futhi bengingafuni abantu engingabazi babuke ividiyo yomndeni wethu ngezikhathi ezisondelene kakhulu zempilo yami, okuhlanganisa ukuqeqeshwa kwami kokupheka (eminyakeni efanele; akukho okungajwayelekile!). Futhi ngacabanga ukuthi akukho lutho oluyinkimbinkimbi ekwenzeni idijithali.
Spoiler: kwavele kwanzima impela.
Umzamo wokuqala wokuthwebula ividiyo
Ubaba wayesenayo iVCR endala yomkhaya, ngakho ngamcela ukuba ayimbe aphume nayo ekamelweni elingaphansi ukuze adle isidlo sakusihlwa somkhaya esilandelayo. ngithenge e-Amazon futhi wangena ebhizinisini.
, idivayisi yokuqala kweningi le-A/V engiyithengile phakathi nokufuna iminyaka eminingi
Ukucubungula ividiyo kusuka kudivayisi yokuthwebula ye-USB, ngisebenzise uhlelo lwe-VirtualDub, inguqulo ka-2012 iphelelwe yisikhathi kancane, kodwa ayibalulekile.
Amafreyimu ohlelweni lwe-VirtualDub, njengoba ngifundela ubaba incwadi ngineminyaka emine
Ukuhlasela ngokuhlanekezela komsindo
Ngenkathi ngiqala inqubo yokuhlela, ngibone ukuphuma kokuvumelanisa okuncane phakathi komsindo nevidiyo. Kulungile, akunankinga. Ngiyakwazi ukunyakazisa umsindo kancane.
Emizuzwini eyishumi kamuva, wayengasavumelanisi futhi. Angizange ngiyinyakazise kancane okokuqala?
Kancane kancane kwangikhanyela ukuthi umsindo nevidiyo akukhona nje ukuthi akusavumelanisiwe, empeleni kuqoshwa ngesivinini esihlukile. Kuwo wonke ama-tape, bayahluka kakhulu. Ukuze ngivumelanise, kwakudingeka ngilungise mathupha umsindo njalo ngemva kwemizuzu embalwa.
Uma ukusetha kwakho kuthwebula umsindo nevidiyo ngamanani ahlukene, khona-ke okuwukuphela kwesixazululo ukulungisa umsindo mathupha njalo ngemva kwemizuzu embalwa.
Ungacabanga ukuthi kunzima kangakanani ukuhlukanisa umsindo 10 millisecond ngaphambili noma 10 millisecond kamuva? Kunzima ngempela! Zahlulele wena.
Kule vidiyo, ngidlala nekati yami empofu, enesineke, egama layo lingu-Black Magic. Umsindo awuvumelaniswa kancane. Thola ukuthi kungaphambi kwesithombe noma sekuhlwile?
Isibonelo sesiqeshana sevidiyo esinomsindo nesithombe esingavumelanisiwe
Kuleli qophelo, i-Black Magic yeqa, ucezu olunokwehla okuphindwe kahlanu:
Umsindo nesithombe akuvumelanisiwe, uhamba kancane ngokuphindwe kahlanu
Impendulo: Umsindo uza nokulibaziseka kwama-millisecond ambalwa.
Mhlawumbe uchithe ikhulu lamadola esikhundleni samakhulu amahora wesikhathi somuntu siqu?
Ukulungisa umsindo kukodwa kwakudinga amahora amaningi omsebenzi oyisicefe, ohlanyisayo. Ekugcineni, kwafika kimina ukuthi ukungavumelanisi kungagwenywa ngokusebenzisa idivayisi yokuthwebula ividiyo engcono nemba eqolo. Ngemuva kocwaningo oluthile, ngithenge olusha ku-Amazon:
Umzamo wami wesibili wokuthenga
Ngisho nangedivayisi entsha, ukususwa kokuvumelanisa akuzange kunyamalale noma kuphi.
I-VCR enesiqalo esithi "super"
Mhlawumbe inkinga iku-VCR. Vuliwe kwathiwa ngeke kube khona ukuvumelanisa ku-VCR “nge-corrector esekelwe kusikhathi” (TBC), lesi sici sitholakala kuwo wonke ama-Super VHS (S-VHS) VCR.
Yebo, kunjalo! Kungani ngadlalisa izilima ezejwayelekile I-VCR uma itholakala супер-VCR exazulula inkinga?
Akekho owenza ama-S-VHS VCRs, kodwa asatholakala ku-eBay. Ngo-$179, ngithenge imodeli ye-JVC SR-V10U, ebonakala iyifanelekela kahle ukwenziwa kwedijithali kwe-VHS:
I-Vintage JVC SR-V10U VCR ngiyithenge ku-eBay ngo-$179
"Super" VCR ingene ngeposi. Ngemva kwezinyanga ezimbalwa zokuzabalaza ngomsindo ongavumelaniswanga, ngajabula kakhulu ngokuthi kwakunemishini eyayizoxazulula zonke izinkinga zami.
Ngavula ibhokisi, ngaxhuma konke - kodwa umsindo wawusaqoshwa ngesivinini esihlukile. Eh.
Ukusesha okuyisicefe, ukuxazulula izinkinga neminyaka yomzabalazo
Ngiqale umzamo odabukisayo wokuxazulula izinkinga. Kwakubuhlungu ukubuka. Ngaso sonke isikhathi lapho ngikhipha yonke imishini ekhabetheni, ngigaqa ngamadolo ngemuva kwedeskithophu ukuze ngixhumanise yonke into, ngizame ukuthwebula ividiyo - ngaphinde ngabuka ukuthi akukho lutho olusebenzayo.
Ngihlangabezane nokuthunyelwe kwenkundla okungahleliwe kusuka ngo-2008 mayelana nokufaka umshayeli ongaziwa waseShayina ongabhalisiwe... Kungumbono omubi, kodwa ngiphelelwe ithemba. Nokho, akazange asize.
Ngizamile izinhlelo ezahlukene zedijithali. Kuthengiwe ukuhlanza amakhanda kazibuthe we-VCR. Kuthengiwe . Akukho okusizile.
Ngayeka njalo, ngakhipha yonke into, futhi ngafihla imishini ekhabetheni ezinye izinyanga ezimbalwa.
Nikeza futhi unikeze ochwepheshe amakhasethi
Unyaka ka-2018 usufikile. Ngahambisa amakhasethi e-video namathani emishini emagumbini amane ahlukene futhi ngase ngizosuka eNew York ngiye eMassachusetts. Angibange ngisawathola amandla okuwathatha futhi, ngoba ngase ngibonile ukuthi ngeke ngiwuqedele lo msebenzi ngingedwa.
Ngabuza umndeni ukuthi unganikela ngamakhasethi enkampanini yokufakwa kwedijithali. Ngenhlanhla, akekho owaphikisa - wonke umuntu wayefuna ukubona amarekhodi futhi.
Я: Kodwa lokho kusho ukuthi inkampani ethile izofinyelela wonke amavidiyo ethu asekhaya. Ingabe kuyakufanela?
Udadewabo: Yebo, ngiyabakhathalela. Wena wedwa ukhathazekile. Ima, ukuze uvele ukhokhele othile kwasekuqaleni?
Я: Uh-uh...
Ukufakwa kwedijithali kwawo wonke amakhasethi angu-45 kubiza u-$750. Kubonakala sengathi kuyabiza, kodwa ngaleso sikhathi ngabe sengikhokhe noma yini ukuze ngingabe ngisabhekana nale mishini.
Lapho behambisa amafayela, ikhwalithi yevidiyo yayingcono impela. Kumafreyimu ami, ukuhlanekezela kwakuhlala kubonakala emaphethelweni ohlaka, kodwa ochwepheshe bafaka yonke into kudijithali ngaphandle kokuhlanekezela nhlobo. Okubaluleke kakhulu, umsindo nevidiyo kuvumelana ngokuphelele.
Nansi ividiyo eqhathanisa ukwenza amadijithali okuphrofeshinali kanye nemizamo yami yasekhaya:
Ukuqhathanisa ukufakwa kwedijithali okuqeqeshiwe nokwenza ekhaya kuvidiyo lapho umama aqopha khona umzamo wami wokuqala wokwenza izinhlelo
Isinyathelo 2. Ukuhlela
Emahlumeni asekhaya, cishe u-90% wezinto ezibonakalayo uyisicefe, u-8% uyathakazelisa, futhi u-2% uyamangalisa. Ngemva kokwenza idijithali, usenomsebenzi omningi okufanele uwenze.
Kuhlelwa ku-Adobe Premiere
Ekhasethini le-VHS, uchungechunge olude lweziqeshana zevidiyo luhlanganiswe nezingxenye ezingenalutho. Ukuhlela itheyiphu, kufanele unqume ukuthi isiqeshana ngasinye siqala futhi siphethe kuphi.
Ukuze ngihlele, ngisebenzise i-Adobe Premiere Elements, ebiza ngaphansi kuka-$100 ngelayisensi yokuphila konke. Isici sawo esibaluleke kakhulu umugqa wesikhathi ongakala. Ikuvumela ukuthi uthole ngokushesha imiphetho yesigcawu bese usondeza ukuze uthole uhlaka lwevidiyo oluqondile lapho isiqeshana siqala khona noma siphela khona.
Umugqa wesikhathi wokusondeza obalulekile ku-Adobe Premiere Elements
Inkinga nge-Premiere ukuthi inqubo idinga izinyathelo eziqhubekayo ezenziwa ngesandla, kodwa ukwenza idijithali nokuthekelisa kuthatha isikhathi eside. Nali ukulandelana kwami kwemisebenzi:
- Vula ifayela elingahluziwe eliqukethe imizuzu engama-30-120 yevidiyo.
- Maka imingcele yesiqeshana ngasinye.
- Khipha isiqeshana.
- Linda imizuzu engu-2-15 ukuze ukuthunyelwa kuqedwe.
- Phinda izinyathelo 2-4 kuze kube yilapho i-tape iphela.
Ukulinda isikhathi eside kwakusho ukuthi ngangilokhu ngibuyela emuva naphambili phakathi kokuhlelwa kwevidiyo nomunye umsebenzi, ngishintsha ukunaka kwami emuva naphambili amahora amaningi.
Okunye okubi kwaba ukungakwazi ukukhiqiza kabusha. Ukulungisa iphutha elincane kucishe kwanzima njengokuqala ekuqaleni. Kungishaye kakhulu uma kuza ekuthumeleni ividiyo. Kungaleso sikhathi kuphela lapho ngabona khona ukuthi ukuze usakaze ku-inthanethi, kwakudingeka ukuthi uqale ukuthekelisa ividiyo ngendlela esekelwa iziphequluli zewebhu. Bengibhekene nokukhetha: ngiqale kabusha inqubo eyisicefe yokuthekelisa amakhulu eziqeshana, noma ngibhale kabusha amavidiyo athunyelwe kwenye ifomethi enekhwalithi eyonakele.
Ukuhlela okuzenzakalelayo
Ngemva kwesikhathi esiningi esichithwa emsebenzini wezandla, ngazibuza ukuthi i-AI ingasetshenziswa yini lapha ngandlela thile. Ukunquma imingcele yeziqeshana kubonakala kuwumsebenzi ofanele wokufunda komshini. Ngangazi ukuthi ukunemba ngeke kuphelele, kodwa makenze okungenani u-80% womsebenzi futhi ngizolungisa u-20 wokugcina.
Ngazama ithuluzi elibizwa ngokuthi , ehlaziya amafayela evidiyo futhi ikhiphe izitembu zesikhathi lapho kwenzeka izinguquko zesigcawu:
$ docker run
--volume "/videos:/opt"
handflucht/pyscenedetect
--input /opt/test.mp4
--output /opt
detect-content --threshold 80
list-scenes
[PySceneDetect] Output directory set:
/opt
[PySceneDetect] Loaded 1 video, framerate: 29.97 FPS, resolution: 720 x 480
[PySceneDetect] Downscale factor set to 3, effective resolution: 240 x 160
[PySceneDetect] Scene list CSV file name format:
$VIDEO_NAME-Scenes.csv
[PySceneDetect] Detecting scenes...
[PySceneDetect] Processed 55135 frames in 117.6 seconds (average 468.96 FPS).
[PySceneDetect] Detected 33 scenes, average shot length 55.7 seconds.
[PySceneDetect] Writing scene list to CSV file:
/opt/test-Scenes.csv
[PySceneDetect] Scene List:
-----------------------------------------------------------------------
| Scene # | Start Frame | Start Time | End Frame | End Time |
-----------------------------------------------------------------------
| 1 | 0 | 00:00:00.000 | 1011 | 00:00:33.734 |
| 2 | 1011 | 00:00:33.734 | 1292 | 00:00:43.110 |
| 3 | 1292 | 00:00:43.110 | 1878 | 00:01:02.663 |
| 4 | 1878 | 00:01:02.663 | 2027 | 00:01:07.634 |
...Ithuluzi libonise ukunemba okungaba ngu-80%, kodwa ukuhlola umsebenzi walo kuthathe isikhathi esiningi kunesilondolozile. Kodwa-ke, i-pyscenedetect yenze okukodwa kokutholwa okubaluleke kakhulu kuyo yonke iphrojekthi: ukuchaza imingcele yesigcawu kanye neziqeshana zokuthekelisa kuyimisebenzi ehlukene.
Ngakhumbula ukuthi ngiwumhleli
Kuze kube manje, ngangibheka konke engangikwenza ku-Adobe Premiere “njengokuhlela”. Ukusika iziqeshana kumafreyimu aluhlaza kubonakale kuhambisana nokuthola imingcele yesiqeshana, ngoba yileyo ndlela i-Premiere ebone ngayo umsebenzi. Lapho i-pyscenedetect iphrinta ithebula lemethadatha, ingenze ngabona ukuthi ngingahlukanisa ukusesha kwesigcawu nokuthekelisa kwevidiyo. Kwaba impumelelo.
Isizathu sokuhlela bekuyisicefe futhi kudla isikhathi yingoba bekufanele ngilinde ngenkathi i-Premiere ithumela isiqeshana ngasinye. Uma bengingabhala imethadatha kuspredishithi bese ngibhala iskripthi esithumela ividiyo ngaphandle ngokuzenzakalelayo, inqubo yokuhlela ibingadlula.
Ngaphezu kwalokho, amaspredishithi awandise kakhulu ububanzi bemethadatha. Ekuqaleni, ngifaka imethadatha egameni lefayela, kodwa lokhu kuyabakhawulela. Ukuba nespredishithi sonke kungivumele ukuba ngifake ikhathalogi yolwazi oluningi mayelana nesiqeshana, njengokuthi ubani owayekuso, lapho sarekhodwa nini, nanoma iyiphi enye idatha engifuna ukuyibonisa uma ividiyo iboniswa.
Isipredishithi esikhulu esinemethadatha mayelana namavidiyo ami asekhaya
Kamuva, ngakwazi ukusebenzisa le methadatha ukwengeza ulwazi kuziqeshana, njengokuthi sonke sasibadala kangakanani kanye nencazelo enemininingwane yokuthi kwenzakalani kusiqeshana.
Ukusebenza kwespredishithi kukuvumela ukuthi urekhode imethadatha enikeza ulwazi olwengeziwe mayelana neziqeshana futhi izenze zibe lula ukuzibuka
Impumelelo yesixazululo esizenzakalelayo
Nginamaspredishithi, ngibhale , esika ividiyo eluhlaza yaba iziqeshana ngokusekelwe kudatha ye-CSV.
Nakhu ukuthi kubukeka kanjani ekusebenzeni:
Njengamanje sengichithile amakhulu amahora, ukukhetha ngokudinayo imingcele yesiqeshana ku-Premiere, ukushaya ukuthekelisa, ukulinda imizuzu embalwa ukuthi kuqedwe, bese uqala kabusha. Hhayi lokho kuphela, inqubo iphindwe izikhathi eziningi kuziqeshana ezifanayo lapho izinkinga zekhwalithi zitholwa kamuva.
Ngokushesha nje lapho ngizenzela ingxenye yeziqeshana, kwawa isisindo esikhulu emahlombe ami. Bekungasadingeki ngikhathazeke ngokukhohlwa imethadatha noma ukukhetha ifomethi engalungile yokuphumayo. Uma iphutha livela kamuva, ungamane ulungise iskripthi bese uphinda yonke into.
Ukwenza idijithali nokuhlela izithombe zevidiyo kuyingxenye yempi. Kusadingeka sithole inketho ekahle yokushicilela ku-inthanethi ukuze zonke izihlobo zikwazi ukubuka ividiyo yomndeni ngefomethi efanelekile ngokusakazwa njenge-YouTube.
Engxenyeni yesibili ye-athikili, ngizochaza ngokuningiliziwe indlela yokusetha iseva yemidiya yomthombo ovulekile nazo zonke iziqeshana zevidiyo, okungibiza kuphela amasenti angu-77 ngenyanga.
Ukuqhubeka,
Source: www.habr.com