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  • 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 (...)

  • Amélioration de la version de base

    13 septembre 2013

    Jolie sélection multiple
    Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
    Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)

  • Emballe médias : à quoi cela sert ?

    4 février 2011, par

    Ce plugin vise à gérer des sites de mise en ligne de documents de tous types.
    Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ;

Sur d’autres sites (13784)

  • bash loop through list of file paths - characters get removed when sending to ffmpeg [duplicate]

    9 octobre 2018, par Brad Johnson

    This question already has an answer here :

    I have a text file that contains a list of paths to flac files I want to convert to wav. Here is a small section of it :

    /mnt/nfs/Music/Rob D/1995 - Clubbed To Death/Rob D - 02 - Clubbed To Death _Kurayamino Variation_.flac
    
/mnt/nfs/Music/Blonde Redhead/2000 - Melody of Certain Damaged Lemons/11 - For the Damaged Coda.flac
    
/mnt/nfs/Music/I Monster/2001 - Daydream In Blue/01 - Daydream In Blue.flac
    
/mnt/nfs/Music/Moby/2002 - Extreme Ways/01 - Extreme Ways.flac
    
/mnt/nfs/Music/RJD2/2002 - Deadringer/01 - The Horror.flac
    
/mnt/nfs/Music/RJD2/2002 - Deadringer/03 - Smoke & Mirrors.flac
    
/mnt/nfs/Music/RJD2/2002 - Deadringer/06 - Ghostwriter.flac
    
/mnt/nfs/Music/RJD2/2002 - Deadringer/10 - Chicken-Bone Circuit.flac
    
/mnt/nfs/Music/FC Kahuna/2003 - Hayling/01 - Hayling _Original_.flac
    
/mnt/nfs/Music/Lamb/2003 - Between Darkness and Wonder/04 - Angelica.flac

    I’m trying to loop through it like so :

    while read -r line; do
    
 wavfile=$(basename "$line")
    
 wavfile="${wavfile%.*}"
    
 ffmpeg -i "$line" "$2/$wavfile.wav"
    
done <$1

    ...where $1 is where I would pass the name of the text file and $2 is the destination directory.

    Here is the output with the irrelevant ffmpeg junk pruned out :

    Input #0, flac, from '/mnt/nfs/Music/Rob D/1995 - Clubbed To Death/Rob D - 02 - Clubbed To Death _Kurayamino Variation_.flac':
    
...
    
Output #0, wav, to '/mnt/gray/Clubbed To Death/Rob D - 02 - Clubbed To Death _Kurayamino Variation_.wav':
    
...
    
/nfs/Music/Blonde Redhead/2000 - Melody of Certain Damaged Lemons/11 - For the Damaged Coda.flac: No such file or directory
    
...
    
Input #0, flac, from '/mnt/nfs/Music/I Monster/2001 - Daydream In Blue/01 - Daydream In Blue.flac':
    
...
    
Output #0, wav, to '/mnt/gray/Clubbed To Death/01 - Daydream In Blue.wav':
    
...
    
nt/nfs/Music/Moby/2002 - Extreme Ways/01 - Extreme Ways.flac: No such file or directory
    
...
    
Input #0, flac, from '/mnt/nfs/Music/RJD2/2002 - Deadringer/01 - The Horror.flac':
    
...
    
Output #0, wav, to '/mnt/gray/Clubbed To Death/01 - The Horror.wav':
    
...
    
nt/nfs/Music/RJD2/2002 - Deadringer/03 - Smoke & Mirrors.flac: No such file or directory
    
...
    
Input #0, flac, from '/mnt/nfs/Music/RJD2/2002 - Deadringer/06 - Ghostwriter.flac':
    
...
    
Output #0, wav, to '/mnt/gray/Clubbed To Death/06 - Ghostwriter.wav':
    
...
    
nt/nfs/Music/RJD2/2002 - Deadringer/10 - Chicken-Bone Circuit.flac: No such file or directory
    
...
    
Input #0, flac, from '/mnt/nfs/Music/FC Kahuna/2003 - Hayling/01 - Hayling _Original_.flac':
    
...
    
Output #0, wav, to '/mnt/gray/Clubbed To Death/01 - Hayling _Original_.wav':
    
...
    
/nfs/Music/Lamb/2003 - Between Darkness and Wonder/04 - Angelica.flac: No such file or directory

    If you pay attention to the paths that ffmpeg reports don’t exist, you’ll see that a seemingly random number of characters has been removed from the beginning. This appears to happen on even numbered lines, but odd numbered lines work. I can only reproduce this behavior when using ffmpeg. If I replace the ffmpeg line with a simple echo statement, every file path is shown to be correct. How can this be ?

    Other suggestions of accomplishing this are also welcome, however I do need the files processed in the order by which I have them listed in the file.

  • Evolution #2173 (Résolu) : Date de création / publication

    13 janvier 2018, par nico d_

    J’ai ajouté la doc du plugin : https://contrib.spip.net/ecrire/?exec=article&id_article=4967

    Pas encore publiée, mais je propose de fermer ce ticket dès qu’elle le sera, et de continuer la discussion sur le forum du plugin sur contrib.

  • Streaming Video from RTMP to EMGUCV

    22 juillet 2017, par Isuru

    I’m trying to stream a webcam using RTMP to an EMGUCV project in order to process the video. I have set up a private RTMP server in a linux box using this tutorial,
    https://obsproject.com/forum/resources/how-to-set-up-your-own-private-rtmp-server-using-nginx.50/

    I’m testing the webcam stream using ffmpeg with the following commands,

    • Write to the rtmp server using,

      ffmpeg -y -f vfwcap -framerate 25 -video_size 640x480 -i 0 -an -f flv rtmp://rtmp-server:1935/live/stream

    • Read from the rtmp server using,
      ffplay -fflags nobuffer rtmp ://rtmp-server:1935/live/stream -loglevel verbose

    I’m able to write a simple OpenCV C++ application to read the stream and display it. Code below,

        cv::VideoCapture vcap;
    
    cv::Mat image;
    
    const std::string videoStreamAddress = "rtmp://rtmp-server:1935/live/stream";
    
    if(!vcap.open(videoStreamAddress)) {
    
        printf("Error opening video stream or file");
    
        return -1;
    
    }
    

    
    cv::namedWindow("Output Window");
    
    cv::Mat edges;
    
    for(;;) {
    
        if(!vcap.read(image)) {
    
            printf("No frame");
    
            cv::waitKey();
    
        }
    
        cv::imshow("Output Window", image);
    
        if(cv::waitKey(1) >= 0) break;
    
    }
    
return 0;

    The above code works properly. However when I try it using EMGUCV C#, I get the error message
    unable to create to capture from rtmp://rtmp-server:1935/live/stream

    This is my C# Code,

        public partial class MainForm : Form
    
    {
    
        private static Capture _cameraCapture;
    

    
        public MainForm()
    
        {
    
            InitializeComponent();
    
            Run();
    
        }
    

    
        void Run()
    
        {
    
            try
    
            {
    
                _cameraCapture = new Capture("rtmp://192.168.56.101:1935/live/stream");                
    
            }
    
            catch (Exception e)
    
            {
    
                MessageBox.Show(e.Message);
    
                return;
    
            }            
    
        }
    
   }

    Do I need a specific build of EMGUCV with FFMPEG or is RTMP capturing not available in EMGUCV ?

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