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Autres articles (49)

  • La file d’attente de SPIPmotion

    28 novembre 2010, par

    Une file d’attente stockée dans la base de donnée
    Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
    Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...)

  • Les vidéos

    21 avril 2011, par

    Comme les documents de type "audio", Mediaspip affiche dans la mesure du possible les vidéos grâce à la balise html5 .
    Un des inconvénients de cette balise est qu’elle n’est pas reconnue correctement par certains navigateurs (Internet Explorer pour ne pas le nommer) et que chaque navigateur ne gère en natif que certains formats de vidéos.
    Son avantage principal quant à lui est de bénéficier de la prise en charge native de vidéos dans les navigateur et donc de se passer de l’utilisation de Flash et (...)

  • Personnaliser en ajoutant son logo, sa bannière ou son image de fond

    5 septembre 2013, par

    Certains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;

Sur d’autres sites (6183)

  • Tailing last frame of a growing video file

    9 janvier 2012, par ebayindir

    On windows, I have a dynamically created uncompressed avi video file which grows overtime. The application which generates the video file can only write to a physical file. I can start/stop generation of video file and delete the old video file easily.

    I would like to analyze the changing last frame of the growing video file to make some decision depending on the content of the current/latest image in real time. If I can achieve more than 10fps it should be enough.
    I would like to get uncompressed images whenever a new frame available in the video file.

    As a file format I think png could be the best options in that case but I am open to alternatives.
    I wonder if such a thing is possible with ffmpeg or with a similar tool.

    I prefer to analyze the image and make decisions by using a perl+Imager module.
    Tha analyisis requirements are not complicated. Basically I just need to find existence of a few small images in certain locations inside the last frame.
    I would also appreciate if you can suggest an efficient way to get this information in to my application from ffmpeg.
    For example piping directly to my code or reading from saved png files.

    I know perl already has an ffmpeg interface module but as far as I understand that module can't provide the functionality I need.

  • Possible to stream video over 115kbps ?

    15 mai 2014, par Arcadio Alivio Sincero

    I need some advice from people experienced with streaming video.

    I have a task to put together a system that allows video coming from RS-170 (composite) video cameras and have them displayed on an iPad. The catch is that no wireless (no Wi-Fi, no bluetooth) is allowed. Only a wired interface.

    The physical I/O options on an iPad are apparently extremely limited, but I did manage to come across a company named Redpark that makes an RS232-to-Lightning cable. So my proposed solution is to have the video feeds go into a box with software that digitizes and encodes the video, and then sends it over RS232 to the iPad using that cable. The catch here is that the maximum bandwidth on that cable is 115kbps.

    My preliminary testing of this setup on a prototype system have been less than stellar so far. I set up two PCs, each with serial ports, and hooked them together with a null modem. I then set the baud rates of the ports to 115kpbs and then attempted to stream a web cam video feed over the serial connection in real-time using ffmpeg. The results weren’t very encouraging, but I at least did manage to get some sort of image to show up.

    I guess I need to play around with the ffmpeg encoding options some more. But I need to ask : am I wasting my time with this idea, or should what I am asking here be possible ?

  • 'ffmpeg' or 'handbrake cli' for video conversion on server ? [closed]

    18 juin 2013, par AaronJiang

    I want to convert videos on my server using command line, maily mp4 -> flv or flv -> mp4. I googled and found these two products 'ffmpeg' and 'HandBrake cli'.

    http://ffmpeg.org/ffmpeg.html

    https://trac.handbrake.fr/wiki/CLIGuide

    Which one is better ?

    Plus I am running on ubuntu server.

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