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Autres articles (54)

  • Amélioration de la version de base

    13 septembre 2013

    Jolie sélection multiple
    Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
    Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)

  • 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 (...)

  • Support audio et vidéo HTML5

    10 avril 2011

    MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
    Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
    Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
    Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...)

Sur d’autres sites (7344)

  • FFMPEG Install/enable 'libfdk_aac' after installed FFMPEG via PPA

    18 juillet 2017, par Cyberbob

    I have linux MINT 17.3 Kernel 4.4.0-81 all update available. (For different reasons I can’t move to newer version of ubuntu/mint)

    I have installed FFMPEG via PPA (NOT from compiling the source) :

    sudo add-apt-repository ppa:jonathonf/ffmpeg-3 -y
    sudo apt-get update
    sudo apt-get install -y ffmpeg

    Then I tried to install libfdk-aac with guide :
    https://trac.ffmpeg.org/wiki/CompilationGuide/Quick/libfdk-aac

    sudo apt-get install pkg-config autoconf automake libtool
    git clone https://github.com/mstorsjo/fdk-aac.git
    cd fdk-aac
    ./autogen.sh
    ./configure --enable-shared --enable-static
    make
    sudo make install
    sudo ldconfig

    But I’m still receive from FFMPEG : "unknown encoder ’libfdk_aac’"

    How can I check if "libfdk_aac’ is correctly installed and HOW CAN I ACTIVATE / ENABLE the ’libfdk_aac’ on FFMPEG ?

    If is not possible in my situation, and if I’m obliged to remove all ffmpeg and follow this :
    https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu

  • Lego Mindstorms RSO Format

    14 juillet 2010, par Multimedia Mike — General

    I recently read a magazine article about Lego Mindstorms. Naturally, the item that caught my eye was the mention of a bit of Lego software that converts various audio file formats to a custom format called RSO that can be downloaded into a Mindstorms project to make the creation output audio. To read different sources, one might be left with the impression that there is something super-duper top secret proprietary about the format. Such impressions do not hold up under casual analysis of a sample file.

    A Google search for "filetype:rso" yielded a few pre-made sample that I have mirrored into the samples archive. The format appears to be an 8-byte header followed by unsigned, 8-bit PCM. More on the wiki. If FFmpeg could gain an RSO file muxer, that would presumably be a heroic feat to the Lego hacking community.

  • What's the difference with crf and qp in ffmpeg ?

    18 novembre 2016, par Nova

    After browsing around Google, I’ve came across this page about h264 encoding and discovered about qp. https://trac.ffmpeg.org/wiki/Encode/H.264

    My questions are : What are the differences with crf and qp ? Is it better to use qp over crf overall, or is it only if for using qp 0 for best lossless ? Does qp have a known sensible setting if it’s preferred ? So far, I know crf has the default value of 23 while 18 is a sensible preferred increase in quality, although I don’t understand why 18 wouldn’t be default if better sensible lossless. Lastly, would changing either of them cause incompatibility with non-ffmpeg players or just qp ?

    I’m converting from webm to mp4 by the way.

    I was going to test crf 23 and 18 and pick which is best but I can’t seem to find any concrete information on this comparison or about qp.