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  • Installation en mode standalone

    4 février 2011, par

    L’installation de la distribution MediaSPIP se fait en plusieurs étapes : la récupération des fichiers nécessaires. À ce moment là deux méthodes sont possibles : en installant l’archive ZIP contenant l’ensemble de la distribution ; via SVN en récupérant les sources de chaque modules séparément ; la préconfiguration ; l’installation définitive ;
    [mediaspip_zip]Installation de l’archive ZIP de MediaSPIP
    Ce mode d’installation est la méthode la plus simple afin d’installer l’ensemble de la distribution (...)

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  • Core : assign rules to contenteditable via `.validate()` and `.rules()…

    14 février 2017, par Arkni
    Core : assign rules to contenteditable via `.validate()` and `.rules()` (#1947)

    Fixes #1946

  • FFmpeg iOS av_read_frame() hangs on cellular connections

    8 novembre 2014, par Moss

    I am able to play an RTMP audio + video stream on iOS. Works fantastic when everything is on a solid WiFi connection.

    When I switch to a cellular connection (great signal strength and LTE/4G), av_read_frame() will intermittently block for an unacceptable amount of time. In some cases, I’ve clocked 30+ seconds of hang time before it moves on and grabs the next frame.

    I attempted a work-around by using the AVIOInterruptCB interrupt callback to abort av_read_frame() if the function takes longer than 1 second to return.

    This definitely aborts av_read_frame() after 1 second, but unfortunately after I do this, future attempts to call av_read_frame() result in EIO errors (-5), which indicates (to me) that the connection has been severed. So I am forced to reconnect with avformat_open_input() ( 3-4 seconds), and then find the stream info again ( 2-3 seconds), and then start reading frames again. This is much better than 10+ seconds of waiting around for the next frame, but it’s much worse than what I wish I could do, which is to just retry immediately and grab the next frame.

    That means, from a cellular user’s perspective, their video locks up intermittently for 5-10 seconds while we reconnect the stream in the background from scratch. Not a great user experience.

    Is there a better way to manage av_read_frame() on a lossy cellular connection ? Or at least improve the reconnect time ? Suggestions ?

  • ffmpeg how to create a effect video like : flower fall ?

    20 mars 2014, par user2927954

    I try to create an effect video like : flower fall. I have a main video (main.mp4) and a effect video (flower_fall.mp4). I want to make a output.mp4 video that merge 2 this videos and the result look like main video is a bottom layer and effect video is a top layer(opacity about 0.5 or something like that). What is the ffmpeg command for solve my target ?

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