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Autres articles (42)

  • 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 (...)

  • MediaSPIP Player : les contrôles

    26 mai 2010, par

    Les contrôles à la souris du lecteur
    En plus des actions au click sur les boutons visibles de l’interface du lecteur, il est également possible d’effectuer d’autres actions grâce à la souris : Click : en cliquant sur la vidéo ou sur le logo du son, celui ci se mettra en lecture ou en pause en fonction de son état actuel ; Molette (roulement) : en plaçant la souris sur l’espace utilisé par le média (hover), la molette de la souris n’exerce plus l’effet habituel de scroll de la page, mais diminue ou (...)

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

Sur d’autres sites (6703)

  • Generate video from images with ken burns effect using ffmpeg

    1er janvier 2014, par user1615796

    I am trying to generate video from images.

    The following code generates the video, 1 frames per 3 seconds.

         exec("ffmpeg -f image2 -r 1/3 -loop_input -shortest -y  -i tmp/image%3d.jpg -i tmp/ag1.mp3 -target ntsc-dvd -s 1280x720 tmp/video.mwv");

    I want to apply ken burns effect to it, I have searched a lot but couldn't find any solution.

    Can anybody help me out ? If can provide any code snippet, will be really appreciated.

  • Wrap a stream of raw H264 NALUs into a container like MP4

    7 mai 2012, par cloudraven

    I have an application that sends raw h264 NALUs as generated from encoding on the fly using x264 x264_encoder_encode. I am getting them through plain TCP so I am not missing any frames.
    I need to be able to decode such a stream in the client using Hardware Acceleration in Windows (DXVA2). I have been struggling to find a way to get this to work using FFMPEG. Perhaps it may be easier to try Media Foundation or DirectShow, but they won't take raw H264.
    I either need to :

    1. Change the code from the server application to give back an mp4 stream. I am not that experienced with x264. I was able to get raw H264 by calling x264_encoder_encode, by following the answer to this question : How does one encode a series of images into H264 using the x264 C API ? How can I go from this to something that is wrapped in MP4 while still being able to stream it in realtime

    2. I could at the receiver wrap it with mp4 headers and feed it into something that can play it using DXVA. I wouldn't know how to do this

    3. I could find another way to accelerate it using DXVA with FFMPEG or something else that takes it in raw format.

    An important restriction is that I need to be able to pre-process each decoded frame before displaying it. Any solution that does decoding and displaying in a single step would not work for me

    I would be fine with either solution

  • Wrap a stream of raw H264 NALUs into a container like MP4

    7 mai 2012, par cloudraven

    I have an application that sends raw h264 NALUs as generated from encoding on the fly using x264 x264_encoder_encode. I am getting them through plain TCP so I am not missing any frames.
    I need to be able to decode such a stream in the client using Hardware Acceleration in Windows (DXVA2). I have been struggling to find a way to get this to work using FFMPEG. Perhaps it may be easier to try Media Foundation or DirectShow, but they won't take raw H264.
    I either need to :

    1. Change the code from the server application to give back an mp4 stream. I am not that experienced with x264. I was able to get raw H264 by calling x264_encoder_encode, by following the answer to this question : How does one encode a series of images into H264 using the x264 C API ? How can I go from this to something that is wrapped in MP4 while still being able to stream it in realtime

    2. I could at the receiver wrap it with mp4 headers and feed it into something that can play it using DXVA. I wouldn't know how to do this

    3. I could find another way to accelerate it using DXVA with FFMPEG or something else that takes it in raw format.

    An important restriction is that I need to be able to pre-process each decoded frame before displaying it. Any solution that does decoding and displaying in a single step would not work for me

    I would be fine with either solution

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