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Autres articles (62)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

  • Gestion des droits de création et d’édition des objets

    8 février 2011, par

    Par défaut, beaucoup de fonctionnalités sont limitées aux administrateurs mais restent configurables indépendamment pour modifier leur statut minimal d’utilisation notamment : la rédaction de contenus sur le site modifiables dans la gestion des templates de formulaires ; l’ajout de notes aux articles ; l’ajout de légendes et d’annotations sur les images ;

Sur d’autres sites (8452)

  • How to make videos .mp4 for a Phillips Media Player GO GEAR VIBE models ? [closed]

    14 avril 2023, par Ivan Rojas Calvo

    Here is the answer by steps (4/13/23) :

    


      


    1. First download and install the software WinFF here

      


      2. 


    2. Check the specificacions of your media player, mine is the GoGearVibe SA2VBE08K/55 model

      


      3. 


    3. Look for the video specification : mine says that the video format needs to match this specifications :

      


      Format = MJPEG (.mp4)

      


      Resolution = 128 x 128 píxeles

      


      Frames per second = 30 cps (fps)

      


      Bitrate = 512 kpbs

      


      4. 


    4. Read this tutorial to create a preset in WinFF here

      


      5. 


    5. Create a preset that turns ANY mp4 video you have into an MJPEG video with the properties shown above with this info :

      


      name : GoGearVibe55

      


      preset label : MJPEG GOGEAR

      


      Preset command line :

      


      -f mov -vf scale=128:128 -c:v mjpeg -b:v 512k -r 25 -c:a adpcm_ima_wav -b:a 192k -ar 22050 -ac 2


      


      output file : mp4

      


      6. 


    6. Understand how to adapt the code to your necessities with this image
enter image description here

      


      7. 


    


    Do not change what is mark in red, that's the resolution of the screen and the encoder of the video. You can change the value mark in blue, which means the bitrate, more bitrate the video will have more definition without changing the resolution. Tha value in green refers to the fps and the ones marked in yellow is the audio settings, don't worry about that, are good audio settings.

    


    Done. I did'n know how to create an article so I let you try this solution, good luck !

    


  • Conversion of H.264 media file to mp4

    2 juin 2016, par arceus

    I have a raw h264 file which I want to convert to mp4 format so that I can play them in any video player.But I am getting many errors when I use ffmpeg for this task.
    I have used the following command line to convert to mp4.

    ffmpeg -f h264 -i input.264 -vcodec output.mp4

    Below are the errors I get.

    missing picture in access unit with size 3273224
    
no frame
    
decoding for stream 0 failed
    
could not find codec parameters for stream 0

    When I probe using ffprobe input.264 I get these errors.

    Missing picture in access unit with size 3273224
    
No start code found
    
Error splitting the input into NAL units
    
decoding for stream 0 failed
    
could not find codec parameters for stream 0

    I have checked other similar problems in this site but could not find the solution.I have added the file at http://s000.tinyupload.com/index.php?file_id=81246308569166574331

    Have a look at the video.

  • sws_scale performance comparison to media players real time resize

    14 juillet 2018, par Andrey Katkov

    While playing 4K video user can resize players window - and result image will be scaled smoothly in run time.

    On the other hand - program written with libav which reads 4k video file frame by frame and scale it down with sws_scale function do it less effective : it took more time then video duration to resize it.

    Why is it so ? Maybe because player fps is less and some frames are skipped - but video still looks smooth ?

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