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Autres articles (28)

  • Selection of projects using MediaSPIP

    2 mai 2011, par

    The examples below are representative elements of MediaSPIP specific uses for specific projects.
    MediaSPIP farm @ Infini
    The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...)

  • Automated installation script of MediaSPIP

    25 avril 2011, par

    To overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
    You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
    The documentation of the use of this installation script is available here.
    The code of this (...)

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

Sur d’autres sites (4968)

  • ffmpeg mix 20 audio streams without making it quieter

    7 juin 2017, par kevin

    I want to mix about 20 audio streams with ffmpeg amix, however as described here, amix has a weired way of making the input streams quieter the more of them you mix together :

    "amix scales each input’s volume by 1/n where n = no. of active inputs. This is evaluated for each audio frame. So when an input drops out, the volume of the remaining inputs is scaled by a smaller amount, hence their volumes increase"

    How can I get rid of this anoying behaviour ?
    I just want the audio streams to keep the same loudness, since only one of them has actual audio in it at any give time anyway..

    At the moment I end up with a file that is about 1/20 the loudness of the original, making it effectively unusable.

  • What does "probe_score" means from ffprobe output ?

    13 août 2014, par Drake

    Given a media file, after running ffprobe -i input.mp4 -show_format -print_format json, I got something like this :

    {
    
    "format": {
    
        "filename": "ooxx.mp4",
    
        "nb_streams": 2,
    
        "nb_programs": 0,
    
        "format_name": "mov,mp4,m4a,3gp,3g2,mj2",
    
        "format_long_name": "QuickTime / MOV",
    
        "start_time": "0.000000",
    
        "duration": "231.210000",
    
        "size": "65133325",
    
        "bit_rate": "2253650",
    
        "probe_score": 100,
    
        "tags": {
    
            "major_brand": "isom",
    
            "minor_version": "512",
    
            "compatible_brands": "isomiso2avc1mp41",
    
            "encoder": "Lavf55.33.100",
    
        }
    
    }
    
}

    I’m wondering what does probe_score mean here ? How does it get calculated ?

  • Hide ffplay window and just show input video [closed]

    5 mai 2023, par Scott Wilkerson

    I'm using FFMPEG/FFPLAY to display video on a monitor from a Decklink card. After much research I finally found a good command to get the video displayed correctly, and at a specific location in the monitor with no border :

    


    ffplay -f dshow -video_size 1280x720 -left 631 -top 19 -rtbufsize 702000k -framerate 59.94 -i video="Decklink Video Capture":audio="Decklink Audio Capture" -threads 2 -noborder

    


    The problem is I need to ONLY display the borderless input video. NOT ffplay running. I figured out I could use -nostats to get rid of the video statistics, but not the command prompt window.

    


    -nostdin DOESN'T WORK
-nodisp HIDES THE INPUT VIDEO, not the command prompt window.

    


    Thanks in advance !

    


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