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Autres articles (44)

  • 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

  • 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 (7687)

  • How to fade video using a custom curve function in ffmpeg ?

    2 avril 2018, par Zoltan

    I would like to fade out a video using a different transition curve than what the fade filter uses (which is probably linear).

    For audio, I can easily choose from a wide variety of curves that the afade filter provides, or I can supply a custom expression to the volume filter, like (sin(PI/2 * min(1\, max(-1\, 1/2 * (t - 3)))) + 1)/2. For video, however, I could not find similar possibilities.

    Based on its description, it seems to me that the geq filter could be misused to achieve this, but I couldn’t get it to work. Additionally, it is very slow, probably because it works on individual pixels, even though the expression only depends on time.

  • Estimate time and memory required when transcoding video FFMPEG [on hold]

    8 mars 2019, par Anh Vo Nguyen Nhat

    Currently, I am trying to predict beforehand the time it takes when transcoding a video (e.g. transcoding 1920x1080 H264 video to 1280x720 VP9) using FFMPEG tool.
    I have used the following features to build a simple neural network to predict the time :
    - Video Resolution (Input + Output)
    - Video Duration
    - Video Codec (Input + Output)
    - Video Bitrate
    - Video Framerate
    - Number of B, I, P frames

    However, the result is not really promising. I want to ask if there is any other way to estimate/predict the time it takes when transcoding a video ? Are there any other features beside the listed that affects the transcoding time ?

    Beside the transcoding time, I also need to forecast the memory required by the process. I see a linear relation between the output resolution and the consumed memory. However, when trying with different computers the consumed memory are different. For example, 128GB computer would take 57GB to transcode, but for 64GB computer, it only takes 37GB. Is there any formula to calculate the required memory from the FFMPEG transcoding algorithm ?

  • Remove support for metadata plugin, replace with data-rule- and data-msg- (added in 907467e8) properties.

    23 novembre 2012, par mlynch

    m demo/custom-messages-data-demo.html m demo/index.html m jquery.validate.js - lib/jquery.metadata.js m test/index.html m test/rules.js m test/test.js Remove support for metadata plugin, replace with data-rule- and data-msg- (added in 907467e8) (...)

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