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Autres articles (80)

  • Contribute to documentation

    13 avril 2011

    Documentation is vital to the development of improved technical capabilities.
    MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
    To contribute, register to the project users’ mailing (...)

  • Le profil des utilisateurs

    12 avril 2011, par

    Chaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
    L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)

  • 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 (...)

Sur d’autres sites (9293)

  • ffmpeg no video with supported format and mime type

    3 avril 2013, par Sam Healey

    Im using ffmpeg on centos6.

    Im trying to convert a video I have mpeg4 selected as output extension.

    When I try to view the video in firefox I get the following error - no video with supported format and mime type. If I view it in ie I just get 1 frame, it looks just like a photo, I click it to play it but nothing happens.

    What do I need to do ?

  • Identification of Frame Type using Xuggle

    1er décembre 2012, par Samveen

    I'm trying to extract just the I-Frames from a video using the Xuggle API. I took the first example from the Xuggle source from here and removing the display code, added the following code snippet to identify the frame type of the current frame :

    //    Decode loop {
    
          if (picture.isComplete()) {
    
              com.xuggle.xuggler.IVideoPicture.PictType type = picture.getPictureType()
    
              if(type == com.xuggle.xuggler.IVideoPicture.PictType.I_TYPE)
    
                  System.out.println("(I-Frame)\n");
    
              else if(type == com.xuggle.xuggler.IVideoPicture.PictType.B_TYPE)
    
                  System.out.println("(B-Frame)\n");
    
              else if(type == com.xuggle.xuggler.IVideoPicture.PictType.P_TYPE)
    
                  System.out.println("(P-Frame)\n");
    
              else if(type == com.xuggle.xuggler.IVideoPicture.PictType.S_TYPE)
    
                  System.out.println("(S-Frame)\n");
    
              else if(type ==com.xuggle.xuggler.IVideoPicture.PictType.DEFAULT_TYPE)
    
                  System.out.println("(Default)\n");
    
              else
    
                  System.out.println("(Other)\n");
    
          }
    
//    }

    Using this code, I never get an I-Frame in my test video, which by definition of being it being a video is impossible (every video's first frame MUST be an I-Frame) and every frame is identified as

    When I use mplayer to extract the I-Frames from the same video using :

    mplayer video20.mp4 -benchmark -nosound -noaspect -noframedrop -ao null \
    
        -vo png:z=6 -vf framestep=I

    I correctly get a set of I-Frames.

    The number of frames displayed by my code is identical to that extracted by mplayer without the framestep filter

    mplayer video20.mp4 -benchmark -nosound -noaspect -noframedrop -ao null \
    
        -vo png:z=6

    The input video in question is an H264 encoded video.

    My question is that what can I do to correctly get the I-Frames from the video using xuggle

    I picked up the method from Java - Keyframe extraction from a video

  • Get flv source from stream with php for ffmpeg

    12 octobre 2012, par Stephan

    I'm trying to automatically create thumbnails from different video sites like vimeo on server side with php and ffmpeg. I got the flv url with video-download-helper and created the thumbnails successfully with ffmpeg.

    However, I fail at getting the flv url from my first curl response. VideoDonwloadHelper creates the url only after I clicked on the video from the "Content-Type : video/mp4" response - but how do I fetch it automatically on server-side without the DownloadHelper ?

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