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  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

  • Selection of projects using MediaSPIP

    2 mai 2011, par

    The examples below are representative elements of MediaSPIP specific uses for specific projects.
    MediaSPIP farm @ Infini
    The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...)

  • Problèmes fréquents

    10 mars 2010, par

    PHP et safe_mode activé
    Une des principales sources de problèmes relève de la configuration de PHP et notamment de l’activation du safe_mode
    La solution consiterait à soit désactiver le safe_mode soit placer le script dans un répertoire accessible par apache pour le site

Sur d’autres sites (2188)

  • moviepy ffmpeg stderr to tkinter interface

    14 octobre 2016, par Alexander Perlman

    Hi stackoverflow community,

    I’m a novice python hobbyist. I wrote a python / ffmpeg script using moviepy that batch concatenates videos. I then designed an interface using tkinter.

    Now I want to redirect the stderr output from FFMPEG to the tkinter interface so that users can review the progress directly in app instead of needing the Sublime text console.

    I’ve done a lot of research but I’m in way over my head. Any tips would be greatly appreciated.

  • How to efficiently upload a GIF to twitter from a MP4 ?

    29 septembre 2019, par arl505

    I’m writing a Java (Spring-Boot) application which, when prompted, downloads media from Twitter via the twitter-api. Then, when prompted later, reposts the media.

    Twitter stores GIFs as MP4s. So when a tweet is sent with a GIF, I download it as a MP4. Then, when reposting, it is tweeted as a video.

    How can I best overcome this conversion issue so that media that is originally sent as a GIF is reposted as a GIF also ?

    I am thinking that I will need to use ffmpeg to convert the downloaded MP4 into a GIF and then upload the GIF. This just seems like potentially unnecessary overhead and so I was hoping to find a cleaner and more efficient solution.

    For a greater understanding on the requirements see the README here : https://github.com/arl505/twitter-memeDatabaseBot

  • VP8 Documentation and Test Vector Contributions

    14 octobre 2010, par noreply@blogger.com (John Luther)

    Janne Salonen of the WebM team in Oulu, Finland (formerly On2 Finland) has added a tabular description of the VP8 syntax to the VP8 Bitstream Guide. The new annex provides a concise reference of the elements in the bitstream and we hope will make implementing and testing VP8 decoders easier. The updated document and source can be downloaded from our documentation page.

    We’re working on more improvements to the bitstream guide and invite other community members to help. As with the VP8 code, we gladly give attribution credit to documentation contributors and have added an AUTHORS file to the bitstream-guide Git repository.

    New VP8 Test Vectors

    The Oulu team has also produced some new VP8 test vectors. We analyzed a large set of WebM videos and produced two important corner use cases. The first produces the worst-case memory bandwidth (i.e., lots of global motion, all fractional motion vectors). The second produces the worst-case boolean decoder bin rate over dozens of consecutive frames. These vectors have been added to the VP8 test repository. Our team will consider other corner cases in the next batch of streams we add to the repository.

    Aki Kuusela is Hantro Embedded Engineering Manager at Google.

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