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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 (...)

  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 est la première version de MediaSPIP stable.
    Sa date de sortie officielle est le 21 juin 2013 et est annoncée ici.
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Comme pour la version précédente, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

  • Mise à disposition des fichiers

    14 avril 2011, par

    Par défaut, lors de son initialisation, MediaSPIP ne permet pas aux visiteurs de télécharger les fichiers qu’ils soient originaux ou le résultat de leur transformation ou encodage. Il permet uniquement de les visualiser.
    Cependant, il est possible et facile d’autoriser les visiteurs à avoir accès à ces documents et ce sous différentes formes.
    Tout cela se passe dans la page de configuration du squelette. Il vous faut aller dans l’espace d’administration du canal, et choisir dans la navigation (...)

Sur d’autres sites (8147)

  • Is there any library in python or can we use FFMPEG to detect the appearance of the lines pattern in video that is shown in the image attached below ? [closed]

    21 septembre 2022, par Shreyas R

    Video defect appearing frame

    


    Hi All,

    


    I am trying to find a way to detect the appearance of this lines pattern embedded in the link below.
If I get any match of this pattern in a video, I need to record that particular timestamp of the video where I got the pattern match.

    


    My idea is to take the image and compare it against the video to find for approximate match percentage. If I get it, then I record that particular timestamp within a .txt file.

    


    Is there any better way to achieve this ?
I think we can use Python or FFMPEG video filters to get a solution for this.

    


    It would really help if anyone can support with a solution. Thanks

    


    Update :
I got a reference where they have proposed a solution similar to my concern.

    


    https://aws.amazon.com/blogs/media/metfc-automatically-compare-two-videos-to-find-common-content/

    


    So we can try to achieve some output from this solution.

    


  • How to control key-frame generation of ffmpeg ?

    2 janvier 2013, par jAckOdE

    I'm making a segmenter that intervene ffmpeg's write_frame function and write output data to separate files. Each segmented file contains segment of about 3 seconds video.

    The code does following :

    1 - Get transcoded packet  
    
2 - Check if it contains key frame data, if yes goto 3. 
    
3 - Check the duration of current segment, if it exceed 3 seconds, goto 4 
    
4 - Close file, and create new segment, write packet to segment file, goto-1

    General speaking, every segment contains at least 3 seconds video data, and it starts with a key frame.

    The problem is that the output video's duration are very different, some contain 3 seconds, some contain 5 or 6.

    I suspect that the problem due to how ffmpeg generate key frames during transcoding. If the "distance" between two adjacent keyframes are 6s, i got 6 seconds segment.

    Here is my questions :

    1. is that true that ffmpeg generate keyframes at irregular intervals (and interval time can be up to few second (eg. 6) ?

    2. How can we control the ffmpeg key frame generation ? (i guess there should be a ffmpeg command's argument for this, -force_key_frames maybe, but I'm not sure)

  • How FFmpeg multi-threaded download ts segment in m3u8 file ?

    22 juin 2021, par xichun lin

    I am using ffmpeg to download the ts in the m3u8 file and merge them into an mp4 file，Use the following command line：

    



    ffmpeg -i <source m3u8="m3u8" file="file"> -c copy target.mp4&#xA;</source>

    &#xA;&#xA;

    Although it can work, but I found the download speed is very slow, bandwidth utilization is very low, so I would like to know if ffmpeg can be set to multi-threaded download to speed up the download speed ?

    &#xA;

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