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  • Récupération d’informations sur le site maître à l’installation d’une instance

    26 novembre 2010, par

    Utilité
    Sur le site principal, une instance de mutualisation est définie par plusieurs choses : Les données dans la table spip_mutus ; Son logo ; Son auteur principal (id_admin dans la table spip_mutus correspondant à un id_auteur de la table spip_auteurs)qui sera le seul à pouvoir créer définitivement l’instance de mutualisation ;
    Il peut donc être tout à fait judicieux de vouloir récupérer certaines de ces informations afin de compléter l’installation d’une instance pour, par exemple : récupérer le (...)

  • Pas question de marché, de cloud etc...

    10 avril 2011

    Le vocabulaire utilisé sur ce site essaie d’éviter toute référence à la mode qui fleurit allègrement
    sur le web 2.0 et dans les entreprises qui en vivent.
    Vous êtes donc invité à bannir l’utilisation des termes "Brand", "Cloud", "Marché" etc...
    Notre motivation est avant tout de créer un outil simple, accessible à pour tout le monde, favorisant
    le partage de créations sur Internet et permettant aux auteurs de garder une autonomie optimale.
    Aucun "contrat Gold ou Premium" n’est donc prévu, aucun (...)

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

Sur d’autres sites (4508)

  • Should a long Running video processing task to be done client side or server side

    27 avril 2021, par Ritwiz Sinha

    I was creating an application in react for uploading video and using a REST API to send that to the server and store in S3. I also wanted the simple audio version of the video for some other tasks and I am confused as to what might be the better way :

    


      

    1. Creating audio file on the fly when it is needed using node-ffmpeg package and not store it anywhere

      2. 


    2. Start converting the video file to audio on the browser client only, and posting that to the server for storage along with the video.

      3. 


    3. Just post the video to the server and use queue system for creating a new task for video conversion to audio and then save that to the S3 storage.
The second method seems to be saving some compute power on the server but it might be a problem if the video upload completes, audio conversion is still going on and the client disconnects.
Would appreciate some help, thanks.

      4. 


    


  • Change bitrate of USB camera

    12 décembre 2018, par Nick Saw

    I use ELP USB camera with h264-codec output.

    Ffmpeg-command to take the video stream :

    ffmpeg -i /dev/video1 -c:v copy output.ts

    As result I have a video with 4Mb bitrate - this value is too high for my task.

    There is the same situation when I use GSTreamer :

    gst-launch-1.0 v4l2src device=/dev/video1 ! video/x-h264,width=1280,height=720,framerate=30/1 ! mpegtsmux ! filesink location=output.ts

    I know that it’s possible to change the bitrate if we decode h264 the stream firstly and then encode it to h264 again. This operation requires too much CPU-power of my NanoPI device.

    The main question is :
    Is it possible to change a USB-camera’s bitrate without decoding ?

    Thanks in advance !

  • Android video encoding with fr and resolution manipulation

    24 février 2017, par apSTRK

    I want to be able to take a video recorded with an Android device and encode it to a new Resolution and Frame Rate using my app. The purpose is to upload a much smaller version of the original video (in size), since this will be videos 30 min long or more.

    So far, I’ve read of people saying FFmpeg is they way to go. However, the documentation seems to be lacking.

    I have also considered using http opencv http://opencv.org/platforms/android.html

    Considering I need to manipulate the video resolution and frame rate, which tool do you think can do such things better ? Are there any other technologies to consider ?

    An important question is, since this will be long videos, is it reasonable to do the encoding in an android device (Consider power resources, time, etc.)

    Thanks in advance !

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