11 Avconv Umarnin don yin rikodi, Maida da Cire Bidiyo & Sauti daga Linux Terminal


A cikin labarin da ya gabata, mun yi magana game da Yadda ake rikodin Bidiyo na Desktop & Audio Ta amfani da kayan aikin 'Avconv'. Mun ambata cewa akwai wasu hanyoyin amfani da yawa don kayan aikin \avconv don magance rafukan multimedia da fayiloli.

  1. Yi rikodin Bidiyo da Audio na Desktop ɗinku Ta Amfani da Umurnin 'Avconv'

A cikin wannan labarin za mu gano mafi mahimmancin umarni 10 don amfani da shirin \avconv.

Don tabbatarwa, kuna buƙatar shigar da kayan aikin \avconv don amfani, don shigar da shi ƙarƙashin Debian/Ubuntu/Mint, gudanar da waɗannan umarni:

$ sudo apt-get update
$ sudo apt-get install libav-tools

1. Samun Bayanin Fayil na Bidiyo da Audio

Idan kuna son samun wasu bayanai game da kowane fayil ɗin multimedia, gudanar da umarni mai zuwa ta amfani da zaɓi '-i' (bayani) tare da umarnin avcon kuma shigar da fayil ɗin mai jiwuwa ko bidiyo.

$ avconv -i Michael-Jackson-You-Rock-My-World-HD.mp4 

avconv version 11-6:11-1, Copyright (c) 2000-2014 the Libav developers
  built on Sep 26 2014 14:34:54 with gcc 4.9.1 (Ubuntu 4.9.1-15ubuntu1)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Michael-Jackson-You-Rock-My-World-HD.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: isommp42
    creation_time   : 2013-12-04 15:45:45
  Duration: 00:09:43.05, start: 0.000000, bitrate: 1898 kb/s
    Stream #0.0(und): Video: h264 (High), yuv420p, 1280x720, 1703 kb/s, 29.97 fps, 60k tbn, 59.94 tbc (default)
    Stream #0.1(und): Audio: aac, 44100 Hz, stereo, fltp, 192 kb/s (default)
    Metadata:
      creation_time   : 2013-12-04 15:46:06
At least one output file must be specified

2. Cire Audio daga Fayil ɗin Bidiyo

Don cire sautin daga kowane fayil ɗin bidiyo kawai, kuma don fitar da shi zuwa wani fayil, kuna iya aiwatar da umarni mai zuwa.

$ avconv -i Michael-Jackson-You-Rock-My-World-HD.mp4 -vn -f wav sound.wav

Wasu batutuwa game da umarnin da ke sama:

  1. Kada ka manta ka maye gurbin sunan fayil ɗin shigarwa da sunan fayil ɗin bidiyo naka.
  2. -vn wani zaɓi ne da muke amfani da shi don cire bidiyon daga fayil ɗin multimedia.
  3. -f wav shine tsarin da muke so fayil ɗin fitarwa ya yi amfani da shi, zaku iya canzawa zuwa \mp3 ko \webm idan kuna so.
  4. sound.wav shine sunan fayil ɗin fitarwa.

3. Cire Bidiyo daga Fayil na Fayil

Hakanan zaka iya cire bidiyon daga fayil ɗin multimedia wanda ya ƙunshi duka bidiyo da sauti ta amfani da umarni mai zuwa.

$ avconv -i You-Rock-My-World.avi -vcodec libx264 -an -f mp4 video.mp4

Bayani game da umarnin da ke sama:

  1. -an zaɓi ne don sauke sauti daga fayil ɗin.
  2. mp4 shine tsarin da muke son amfani dashi don sabon fayil ɗinmu, zaku iya canza zuwa \mkv, \ogg.. da sauransu, ku tuna, dole ne ku canza\video.mp4 zuwa \video.mkv kuma.

4. Maida .avi zuwa .mkv Format

Don canza fayil ɗin .avi zuwa tsarin .mkv, yi amfani da umarni mai zuwa.

$ avconv -i You-Rock-My-World.avi -vcodec libx264 You-Rock-My-World.mkv

  1. -i source-file.avi shine fayil ɗin da muke son musanya (-i = -input).
  2. -vcodec wani zaɓi ne da muke amfani da shi don zaɓar codec na bidiyo don amfani da shi yayin sarrafa canjin, a yanayinmu shine \libx264, wannan zaɓi yana da mahimmanci don kiyaye bidiyon. inganci kamar yadda yake.
  3. newfile.mkv shine sunan fayil ɗin fitarwa.

5. Maida .mp4 zuwa avi Format

Don canza fayil n .mp4 zuwa tsarin .avi, gudanar da umarni mai zuwa.

$ avconv -i Michael-Jackson-You-Rock-My-World-HD.mp4 -vcodec libx264 newfile.avi

6. Maida .mp3 zuwa .wav Format

Babu wani sabon abu a nan fayil, babu bidiyo a nan.

$ avconv -i michael-jackson-dangerous.mp3 newfile.wav

7. Maida .yuv zuwa .avi Format

Kuna iya canza tsarin ya danganta da buƙatun ku a cikin umarnin da suka gabata idan kuna so, tabbatar cewa tsarin da kuka zaɓa yana samun goyon bayan Libav.

$ avconv -i oldfile.yuv newfile.avi

8. Haɗa Bidiyo da Sauti Tare

Don haɗa fayil ɗin bidiyo tare da fayil mai jiwuwa tare, gudanar da umarni mai zuwa.

$ avconv -i the-sound-file.wav -i the-video-file.avi the-output-file.mkv

Kuna iya maye gurbin \the-output-file.mkv da \the-output-file.avi ko kowane tsari da Libav ke goyan bayan (Kada ku tambaya ni game da shi, gwada su duka da kanka!).

9. Maida Bidiyo zuwa Hotuna

Don canza fayil ɗin bidiyo zuwa hotuna daban-daban, kuna iya aiwatar da umarni mai zuwa.

$ avconv -i Michael-Jackson-You-Rock-My-World-HD.mp4 -r 1 -s 1366x768 -f image2 image-%03d.png

  1. -r 1: shine adadin firam ɗin da kuke so akan kowane hoto, gwargwadon yawansa, ƙarin hotuna ana ƙirƙira.
  2. 1366×768: shine fadin da tsayin da kuke so don hotunan, zaku iya maye gurbinsu da kowane girman da kuke so.
  3. image-%03d.png: shine tsarin sunan hoton, idan kun gwada umarnin, zai ƙirƙiri hotuna da yawa kamar \image-001.png , \image-002 .png”.. da sauransu, zaku iya maye gurbin \png da \jpg ko jpeg idan kuna so.

10. Ƙarin Zaɓuɓɓuka don amfani da Libav

A cikin Libav, akwai abubuwa masu ban mamaki da ake kira \filters, ta amfani da filtata, za ku iya yin manyan abubuwa da yawa ga fayilolinku na multimedia. Misali, ɗauki umarni mai zuwa.

$ avconv -i input-video.avi -vcodec libx264 -vf "drawbox=x=50:y=50:width=400:height=300:[email " output-video.avi

  1. -vf: zaɓi ne don amfani da tacewar bidiyo (Idan kuna son amfani da tace sauti, maye gurbin shi da -af).
  2. drawbox=x=50:y=50:width=400:height=300:[email : Anan mun shafa matatar mai suna \akwatin zane wanda ya zana akwatin ja mai 400 faɗi da tsayi 300 a x=50 da y = 50.

Kuma ga sakamakon umarnin da ke sama.

Kuma ɗauki umarni mai zuwa misali,

$ avconv -i input-file.avi -vcodec libx264 -vf "transpose=cclock" output-file.avi

  1. transpose=cclock tace bidiyo ne da ke juya bidiyon da digiri 90 a agogo.

Ga hoton abin da za ku samu.

11. Yi rikodin tty azaman Bidiyo

Dole ne mai amfani ya yi amfani da wannan umarni, ba zai yi aiki ba tare da sudo ba, saboda yana buƙatar samun dama ga na'urar framebuffer (fbdev). fbdev shine na'urar shigar da framebuffer na Linux, wannan na'urar ita ce ke da alhakin nuna hotuna a cikin na'ura.

$ sudo avconv -f fbdev -r 30 -i /dev/fb0 out.avi

  1. * -r 30: shine adadin firam a sakan daya.
  2. * -i /dev/fb0: shine kumburin na'urar fayil mai gudana, ta amfani da wannan zaɓi, za mu iya ɗaukar bidiyon daga tty.

Abin mamaki ba? Akwai wasu matattara masu kyau da yawa da za ku yi amfani da su tare da fayilolinku na multimedia baya ga sauran hanyoyin amfani da avconv, zaku iya duba su duka daga takaddun hukuma a

Amfani da Umurnin Avconv

Shin kun gwada amfani da gaba don Libav a baya? Me kuke tunani akai? Kuna da wasu mahimman umarni don avconv? Raba su tare da mu a cikin sharhi!