Ungaguquguqula kanjani umsindo uye kwamanye amafomethi kusuka ku-terminal nge-FFmpeg

Abasebenzisi abaningi bakhetha ukusebenzisa izinhlelo zokusebenza ze-UI ukwenza imisebenzi yethu. Kepha ku-Linux (naku-macOS) kunokuthile okubizwa ngokuthi i-terminal (ngabe lokhu kuzwakala kujwayelekile?), Esingakwenza kukho konke ngaphandle kokufaka isoftware eyengeziwe, inqobo nje uma sikhumbula imiyalo edingekayo. Kulesi sihloko sizokukhombisa ungaguquguqula kanjani umsindo uye kwamanye amafomethi usebenzisa i-terminal ne-FFmpeg, into efakwe ngokuzenzakalela ekusatshalalisweni okuningi kwe-Linux.

Into enhle ngokusebenzisa i-FFmpeg ngqo kusuka ku-terminal ukuthi, ngokungadingi futhi ukuhambisa i-GUI noma i-interface yomsebenzisi, ukusebenza nokwethembeka kuzoba ngaphezulu. Izoshesha futhi ngoba awumosheli izinsiza ku- "frills". Ngaphezu kwalokho, i-FFmpeg luhlaka olunamandla kakhulu futhi oluhambisanayo, oluqinisekisa ukuthi singaguqula cishe noma yiliphi ifayili lomsindo liye kunoma iyiphi ifomethi. Lapha sichaza ukuthi sikwenze kanjani.

I-FFmpeg iyahambisana namafomethi athandwa kakhulu

Into yokuqala esizoyenza ukuqinisekisa ukuthi sine-FFmpeg efakwe kwikhompyutha yethu. Singakwenza ngezindlela ezimbili, enye yazo esemthethweni kanti enye iyindlela enqamulelayo. Indlela esemthethweni ukubhala, ngaphandle kwezingcaphuno, "ffmpeg -version" esigungwini, esizosikhombisa uhlobo lohlaka esilufakile nezinketho ezitholakalayo. Isinqamuleli silula kakhulu: simane sithayiphe igama lohlaka, okungukuthi, "Ffmpeg" ngaphandle kwezingcaphuno. Sizobona okuthile okulandelayo:

Uma singaboni into efana nale engenhla, sifaka i-FFmpeg ngomyalo olandelayo:

sudo apt install ffmpeg

Uma sekufakiwe futhi uma ufuna ukuhlaba umxhwele, ungathayipha i- "ffmpeg -help" ukubona ukuthi yini engayenza. Kunezinketho eziningi, kepha le ndatshana izogxila kokulula. Futhi manje yebo, siqhubeka nokuguqula umsindo ube ngamanye amafomethi.

Guqula i-MP3 ibe yi-WAV nge-FFmpeg

Ukuguqula amafayela alalelwayo amanye amafomethi nge-FFmpeg kungaba lula kakhulu. Uma ngabe yilokhu kuphela esikufunayo, umyalo uzofana nokulandelayo:

ffmpeg -i archivodeentrada.mp3 archivodesalida.wav

Njengoba ukwazi ukubona, ukuphela kwento okufanele uyikhumbule engeza "-i" ngaphambili wefayela lokufakwayo nefayela lokukhipha (esikhundleni se- "inputfile" ne- "outputfile" ngegama olikhethayo). Akusekho okunye. Uma sifuna ukwazi amafomethi nama-codec akhona, sizobhala imiyalo "ffmpeg -formats" noma "ffmpeg -codecs", njalo ngaphandle kwezilinganiso.

Ake sikwenze kube nzima

Manje sesizokuxaka kancane. Lolu hlaka luyasivumela guqula ifayili elifanayo libe amafomethi ahlukahlukene ngesikhathi esifanayo. Kungaba yini lokhu? Hhayi-ke, mhlawumbe sinamadivayisi ahlukene anokuhambisana okuhlukile kanti enye ingcono nge-MP3 enye ine-OGG. Noma ngabe yisiphi isizathu, singakwenza futhi ngalokhu kwanele ukwengeza wonke amanye amafomethi kumyalo owedlule, ongabukeka ucishe ufane nalokhu:

ffmpeg -i archivodeentrada.mp3 archivodesalida.wav archivodesalida.ogg archivodesalida.mp4

Uma sifuna ukukhombisa i-codec ethile, sizokwenza lokho ngokungeza "c: a + codec" ngaphambi kwefayela lokukhipha, elizoguqula i-MP4 ibe yi-OGG ne "libopus" codec ibukeka kanjena:

ffmpeg -i archivodeentrada.mp4 c:a libopus archivodesalida.ogg

Kunzima kakhulu, esizokwenza ukuguqula ifayela lomsindo le-AIF libe yi-MP3 elibonisa i-bitrate ethile, kulokhu kube ngu-320. Sizokwenza ngomyalo olandelayo:

ffmpeg -i archivodeentrada.aif -b:a 320000 archivodesalida.mp3

Ungahle uzibuze: "320000?" Yebo. Kufanele sikhumbule ukuthi i-bitrate ikwi-kbit / s, ngakho-ke kufanele sengeze inombolo esiyaziyo (ngokwesibonelo, i-320) iphindaphindwe ngo-1000.

I-FFmpeg isinikeza okuningi

Lolu hlaka olunamandla lusinikeza lokhu nokunye okuningi. Eqinisweni, lokho okuchazwe kule ndatshana kumane nje kuyisiqalo seqhwa elikhulu ongalibona ngokugcwele kulo lesi sixhumanisi. Ngolunye usuku sizochaza ukuthi siqopha kanjani isikrini nge-FFmpeg, into esingayenza ngaphandle komsindo noma ngomsindo, uma kwenzeka ungafuni ukusebenzisa izinhlelo ezinjengeVLC noma i-SimpleScreenRecorder.

Ngabe kukhona omunye umsebenzi / ukuguqulwa ojwayele ukukwenza ngeFFmpeg?

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