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Autres articles (77)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

  • Personnaliser les catégories

    21 juin 2013, par

    Formulaire de création d’une catégorie
    Pour ceux qui connaissent bien SPIP, une catégorie peut être assimilée à une rubrique.
    Dans le cas d’un document de type catégorie, les champs proposés par défaut sont : Texte
    On peut modifier ce formulaire dans la partie :
    Administration > Configuration des masques de formulaire.
    Dans le cas d’un document de type média, les champs non affichés par défaut sont : Descriptif rapide
    Par ailleurs, c’est dans cette partie configuration qu’on peut indiquer le (...)

Sur d’autres sites (12334)

  • faster way to downmix 5.1 videos to stereo ?

    22 octobre 2020, par alex hansen

    I have a hand full of movies that are all in 5.1 audio, i need there to be one audio track that is only in stereo. i have found a few suggestions as to how to do this but some dont work for me and others are way too slow.

    


    the one i found that works the fastest is this :

    


    ffmpeg -y -i "input" -map 0:v -c:v copy -map 0:a:0? -c:a:0 copy -map 0:a:0? -c:a:1 aac -ac 2 -metadata:s:a:1 title="Eng 2.0 Stereo" -map 0:a:1? -c:a:2 copy -map 0:a:2? -c:a:3 copy -map 0:a:3? -c:a:4 copy -map 0:a:4? -c:a:5 copy -map 0:a:5? -c:a:6 copy -map 0:a:6? -c:a:7 copy -map 0:s? -c:s copy "output"   


    


    sadly i do not remember where it came from.

    


    the problem with this being that it creates a separate audio track, and for my purposes this does not work.

    


    doing just the standard -ac 2 works but is way to slow, i estimated to take over 40 hours to go through all my movies.

    


    edit :
a bit of extra information to throw in here

    


      

    • all the movies are mp4's

      • 


    • all except 2 movies are 5.1 audio (there is 1 7.1 and 1 mono. i dont really care about them tho)

      • 


    • the command i posted runs at about a 40x speed while just doing -ac 4 runs at 2x speed

      • 


    


  • Concat lots of audio files to a video with ffmpeg [closed]

    22 mars, par Sulli

    I’m using this ffmpeg command to add audio effects at certain times to a video file :

    


    ffmpeg -i C:\path\to\video.mp4 -i C:\path\to\audio1.wav -i C:\path\to\audio2.wav -filter_complex "[1]adelay=0|0[a1]; [2]adelay=960|960[a2]; [a1][a2]amix=inputs=2[a]" -map 0:v:0 -map [a] -c:v copy -c:a aac -b:a 192k -loglevel error -y C:\path\to\output.mp4


    


    it works, but when I want to add LOTS of audio effects (like more than 200), I get errors like

    


    An unexpected error occurred: [WinError 206] The filename or extension is too long


    


    As it seems to be a command length problem, I might be able to overcome this by using files to read inputs and/or filters, but I have spent the last hours without finding the correct command syntax or file format to achieve that. How can I do that ?

    


  • Downloading and Uploading FFmpeg [closed]

    24 décembre 2011, par user705339

    I have a Windows OS for development, and a Linux server. I downloaded ffmpeg on my Windows, configured everything, and uploaded the application. The video conversion didn't work. After extensive hours figuring out the culprit, I realized that I downloaded the ffmpeg for Windows, and need to download the Linux version. That seemed harder than downloading the Windows version. I have scoured the net, and have come up with squat

    So, my 2 questions are :

    1. Is there an easy way to download/install the linux version of ffmpeg ? OR
    2. Is there an easier way to install it straight on the server ?

    If it matters, I also have a Linux OS development, but found it hard to install ffmpeg on it anyway.

    Update : After trying apt-get install ffmpeg on my Ubuntu Linux OS, it says it has already been installed. How do I locate what folder it's located ?

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