Recherche avancée

Médias (0)

Mot : - Tags -/formulaire

Aucun média correspondant à vos critères n’est disponible sur le site.

Autres articles (100)

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • 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 (...)

  • ANNEXE : Les plugins utilisés spécifiquement pour la ferme

    5 mars 2010, par

    Le site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)

Sur d’autres sites (8659)

  • Is there a good set of ffmpeg presets to target multiple platforms available anywere ?

    17 mai 2012, par Prody

    I'm working on a web app that would let users upload a video.

    The user's video should then be played on apps on a few platforms :

    • web, via flash
    • iOS native player
    • Android phones - hopefully all players, even low-end devices

    I plan to do the encoding with ffmpeg which has this very cool preset feature.

    I'm sure I'm not the only one to find this out, but when I Google ffmpeg encode for iPhone, I get as many different parameter sets on people's blogs as results.

    Furthermore, people sometimes use parameters which are not even documented.

    Since ffmpeg supports these presets, I can't believe we don't have a "preset database" somewhere which has such presets as iPhone_low_quality, Android_low_end_device_low_quality, etc.

    Am I just failing to find it ?

  • Write mdat of mpeg-4 into mpeg-ts using ffmpeg

    20 juin 2013, par Ardoramor

    If I have an mp4 file with incomplete ftyp and moov but a valid mdat, can I write mdat frames into mpeg-ts ? Do I really need to get sps and pps if I do not plan to decode/encode ? Shouldn't it simply read/write frames from input stream into output stream ?

  • Playing H.264 video in an application through ffmpeg using DXVA2 acceleration

    28 avril 2012, par cloudraven

    I am trying to output H.264 video in a Windows application. I am moderately familiar with FFMPEG and I have been successful at getting it to play H.264 in a SDL window without a problem. Still, I would really benefit from using Hardware Acceleration (probably through DXVA2)

    I am reading raw H264 video, no container, no audio ... just raw video (and no B-frames, just I and P). Also, I know that all the systems that will use this applications have Nvidia GPUs supporting at least VP3.
    Given that set of assumptions I was hoping to cut some corners, make it simple instead of general, just have it working for my particular scenario.

    So far I know that I need to set the hardware acceleration in the codec context by filling the hwaccel member through a call to ff_find_hwaccel. My plan is to look at Media Player Classic Home Cinema which does a pretty good job at supporting DXVA2 using FFMPEG when decoding H.264. However, the code is quite large and I am not exactly sure where to look. I can find the place where ff_find_hwaccel is called in h264.c, but I was wondering where else should I be looking at.

    More specifically, I would like to know what is the minimum set of steps that I have to code to get DXVA2 through FFMPEG working ?

    EDIT : I am open to look at VLC or anything else if someone knows where I can find the "important" piece of code that does the trick. I just mentioned MPC-HC because I think it is the easiest to get to compile in Windows.

Navigation