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Sur d’autres sites (8362)

  • Why I can't install ffmpeg on CentOS 7 [on hold]

    15 juillet 2017, par Thinh Phan

    I want to install ffmpeg to my CentOS 7 server but I can’t, it say we missing some libs that I can’t find where and how to install them.

    This is command i used and the error occured :

    [root@www13 ~]# yum install ffmpeg -y
    
Loaded plugins: fastestmirror, langpacks
    
Loading mirror speeds from cached hostfile
    
* base: www.ftp.ne.jp
    
* extras: www.ftp.ne.jp
    
 * nux-dextop: mirror.li.nux.ro
    
 * updates: www.ftp.ne.jp
    
Resolving Dependencies
    
--> Running transaction check
    
---> Package ffmpeg.x86_64 0:2.6.8-3.el7.nux will be installed
    
--> Processing Dependency: ffmpeg-libs(x86-64) = 2.6.8-3.el7.nux for package: ffmpeg-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libswscale.so.3(LIBSWSCALE_3)(64bit) for package: ffmpeg-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libswresample.so.1(LIBSWRESAMPLE_1)(64bit) for package: ffmpeg-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libpostproc.so.53(LIBPOSTPROC_53)(64bit) for package: ffmpeg-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libavutil.so.54(LIBAVUTIL_54)(64bit) for package: ffmpeg-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libavresample.so.2(LIBAVRESAMPLE_2)(64bit) for package: ffmpeg-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libavformat.so.56(LIBAVFORMAT_56)(64bit) for package: ffmpeg-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libavfilter.so.5(LIBAVFILTER_5)(64bit) for package: ffmpeg-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libavdevice.so.56(LIBAVDEVICE_56)(64bit) for package: ffmpeg-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libavcodec.so.56(LIBAVCODEC_56)(64bit) for package: ffmpeg-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libvdpau.so.1()(64bit) for package: ffmpeg-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libswscale.so.3()(64bit) for package: ffmpeg-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libswresample.so.1()(64bit) for package: ffmpeg-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libpostproc.so.53()(64bit) for package: ffmpeg-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libavutil.so.54()(64bit) for package: ffmpeg-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libavresample.so.2()(64bit) for package: ffmpeg-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libavformat.so.56()(64bit) for package: ffmpeg-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libavfilter.so.5()(64bit) for package: ffmpeg-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libavdevice.so.56()(64bit) for package: ffmpeg-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libavcodec.so.56()(64bit) for package: ffmpeg-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libSDL-1.2.so.0()(64bit) for package: ffmpeg-2.6.8-3.el7.nux.x86_64
    
--> Running transaction check
    
---> Package SDL.x86_64 0:1.2.15-14.el7 will be installed
    
---> Package ffmpeg-libs.x86_64 0:2.6.8-3.el7.nux will be installed
    
--> Processing Dependency: libxvidcore.so.4()(64bit) for package: ffmpeg-libs-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libx265.so.79()(64bit) for package: ffmpeg-libs-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libx264.so.142()(64bit) for package: ffmpeg-libs-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libva.so.1()(64bit) for package: ffmpeg-libs-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libsoxr.so.0()(64bit) for package: ffmpeg-libs-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libmp3lame.so.0()(64bit) for package: ffmpeg-libs-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libfdk-aac.so.1()(64bit) for package: ffmpeg-libs-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libfaac.so.0()(64bit) for package: ffmpeg-libs-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libass.so.5()(64bit) for package: ffmpeg-libs-2.6.8-3.el7.nux.x86_64
    
---> Package libavdevice.x86_64 0:2.6.8-3.el7.nux will be installed
    
--> Processing Dependency: libopenal.so.1()(64bit) for package: libavdevice-2.6.8-3.el7.nux.x86_64
    
--> Processing Dependency: libdc1394.so.22()(64bit) for package: libavdevice-2.6.8-3.el7.nux.x86_64
    
---> Package libvdpau.x86_64 0:1.1-2.el7 will be installed
    
--> Running transaction check
    
---> Package faac.x86_64 0:1.28-6.0.el7.nux will be installed
    
---> Package fdk-aac.x86_64 0:0.1.4-1 will be installed
    
---> Package ffmpeg-libs.x86_64 0:2.6.8-3.el7.nux will be installed
    
--> Processing Dependency: libass.so.5()(64bit) for package: ffmpeg-libs-2.6.8-3.el7.nux.x86_64
    
---> Package lame-libs.x86_64 0:3.99.5-2.el7 will be installed
    
---> Package libavdevice.x86_64 0:2.6.8-3.el7.nux will be installed
    
--> Processing Dependency: libopenal.so.1()(64bit) for package: libavdevice-2.6.8-3.el7.nux.x86_64
    
---> Package libdc1394.x86_64 0:2.2.0-4.el7.nux will be installed
    
---> Package libva.x86_64 0:1.0.16-3.el6 will be installed
    
--> Processing Dependency: libudev.so.0()(64bit) for package: libva-1.0.16-3.el6.x86_64
    
---> Package soxr.x86_64 0:0.1.1-2.el7.nux will be installed
    
---> Package x264-libs.x86_64 0:0.142-11.20141221git6a301b6.el7.nux will be installed
    
---> Package x265-libs.x86_64 0:1.9-1.el7.nux will be installed
    
---> Package xvidcore.x86_64 0:1.3.2-5.el7.nux will be installed
    
--> Finished Dependency Resolution
    
Error: Package: libva-1.0.16-3.el6.x86_64 (linuxtech)
    
       Requires: libudev.so.0()(64bit)
    
Error: Package: libavdevice-2.6.8-3.el7.nux.x86_64 (forensics)
    
       Requires: libopenal.so.1()(64bit)
    
Error: Package: ffmpeg-libs-2.6.8-3.el7.nux.x86_64 (forensics)
    
       Requires: libass.so.5()(64bit)

    Where and how I can install libudev, libopenal, libass for my server ?

  • How to format the output of ffmpeg

    1er mars 2023, par Default

    I am trying to use ffmpeg to get the list of audio input devices for my machine(windows 11).

    


    This is the command that I use to achieve this :

    


    ffmpeg -list_devices true -f dshow -i dummy -hide_banner


    


    This is the output :

    


    [dshow @ 00000282627590c0] "OBS Virtual Camera" (video)
[dshow @ 00000282627590c0]   Alternative name "@device_sw_{860BB310-5D01-11D0-BD3B- 
00A0C911CE86}\{A3FCE0F5-3493-419F-958A-ABA1250EC20B}"
[dshow @ 00000282627590c0] "Microphone (Realtek(R) Audio)" (audio)
[dshow @ 00000282627590c0]   Alternative name "@device_cm_{33D9A762-90C8-11D0-BD43- 
00A0C911CE86}\wave_{2409F2C8-F2CB-4A6D-AEA7-DAD79C4EE9DF}"


    


    I want to modify the output so it only shows this :

    


    "OBS Virtual Camera" (video)
"Microphone (Realtek(R) Audio)" (audio)


    


    How can I remove the brackets at the beginning as well as the alternative names to achieve this ? What command do I use ?

    


  • Using && in Windows FileAssociation Action Commandline

    31 août 2017, par GavinBrelstaff

    I can use the && conjunction from within a standard Windows CMD shell to run two commands on the same line as such :

    "C:\Program Files (x86)\ffmpeg\ffmpeg.exe" -i "%1" -write_xing 0 -ac 2 -ar 24000 -ab 48k -id3v2_version 3 -write_id3v1 1 "%1".mp3 && DEL /Q "%1"
    • by which I delete the input file after having successfully converted it into mp3 output file using ffmpeg

    But the same line of code crashes when I insert it in to the appropriate RegEdit location e.g. :

    Windows Registry Editor Version 5.00
    

    
[HKEY_CLASSES_ROOT\Applications\foobar2000.exe\shell\mp3\command]
    
@="\"C:\\Program Files (x86)\\ffmpeg\\ffmpeg.exe\" -i \"%1\" -write_xing 0 -ac 2 -ar 24000 -ab 48k -id3v2_version 3 -write_id3v1 1 \"%1\".mp3 && DEL /Q \"%1\" "

    while it worked fine before I added the trailing && clause. You run it by a right click context menu item.

    Is there any way to achieve this preferably without creating additional BAT/CMD files. I tried placing ( ) brackets around the entire line but then it seemed to change scope and no longer find the input file.

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