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  • 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 (...)

  • 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

  • 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 (...)

Sur d’autres sites (6381)

  • How can I convert a webm file with alpha channel to a hevc encoded file that will play in safari on an IPad ?

    21 septembre 2021, par Programming Guy

    I've got a webm file with transparency : https://itype.techforge.com.au/assets/videos/upshot/module1/NP_1A.webm

    


    I'm trying to convert it into something that will play in the video element of a web page in the Safari browser on an IPad.

    


    An example of a file that works is : https://rotato.netlify.app/alpha-demo/movie-hevc.mov

    


    My attempts at doing this conversion have all failed. 3rd party apps seem to all lose the alpha channel.

    


    On my mac I tried ffmpeg

    


    ffmpeg -i input.webm -c:v hevc_videotoolbox -allow_sw 1 -alpha_quality 0.75 -vtag hvc1 output.mov


    


    However, while this resulted in a file that reported a codec of MPEG-H Part2/HEVC (H.265) (hvc1) the resulting file still has a black background instead of a transparent one.

    


    ffmpeg log : https://pastebin.com/DMM9y5PU

    


  • How to take a 2.1 file add some data and export as 2.1 file out back ?

    28 novembre 2019, par Teja8484

    I have a source file called A.wav. It has 2.1 channels (Stereo and mono channel) in audacity. I was able to split the stereo into mono channels B and C using the following command. D.wav is the other mono channel.

    ffmpeg -i A.wav -filter_complex "[0:a]channelsplit=channel_layout=stereo[left][right]" -map "[left]" B.wav -map "[right]" C.wav

    After adding some noise to the files i want to export all the three mono files into the same 2.1 format as it was originally present. (B+C = stereo, D=mono) to one 2.1 file. I know this can be done with ffmpeg. But not able to get the right command.

  • How can I generate a video file directly from an FFmpeg filter with no actual input file ?

    12 mai, par blahdiblah

    FFmpeg has a number of video generating filters, listed in the documentation as "video sources" :

    



      

    • cellauto

      • 


    • color

      • 


    • mptestsrc

      • 


    • fei0r_src

      • 


    • life

      • 


    • nullsrc, rgbtestsrc, testsrc

      • 


    



    Those are great for using with other filters like overlay, but is there any way that I can generate a movie consisting of just one of those video sources without any input video ?

    



    Something like :

    



    ffmpeg -vf color=red" red_movie.mp4


    



    Except that that errors out with At least one input file must be specified.

    


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