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  • 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 (...)

  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

  • 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 (...)

Sur d’autres sites (13198)

  • How to make doppler effect on audio with ffmpeg [duplicate]

    3 janvier 2019, par Adam Estel

    This question already has an answer here :

    How can i make the doppler effect on audio with ffmpeg.I mean : Sound run from left to right and opposite, just like this video :
    https://www.youtube.com/watch?v=j35K4QC_9bM
    I research ffmpeg for a while but I can’t firgure the audio filter i can start with
    Thank you for helping me
    Have a nice day.

  • ffmpeg how to do the "earrape" sound effect

    20 avril 2020, par Shalin Shah

    I was wondering how to do the earrape effect using ffmpeg where the audio just sounds completely destroyed. Here's an example :
https://www.youtube.com/watch?v=KiCmvQiAC8Q

    



    I've tried a bunch of combinations of different commands on ffmpeg and the closest I've gotten is the following (where I use the superequalizer and then make the volume super high) :

    



    import ffmpeg
(
    ffmpeg
    .input('shark.wav')
    .filter("superequalizer", 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20)
    .filter("volume", 10)
    .output('output_earrape.wav')
    .run()
)


    



    I'm using a python wrapper but here's the command line equivalent :

    



    ffmpeg -i shark.wav -af "superequalizer=1b=20:2b=20:3b=20:4b=20:5b=20:6b=20:7b=20:8b=20:9b=20:10b=20:11b=20:12b=20:13b=20:14b=20:15b=20:16b=20:17b=20:18b=20,volume=10" output_earrape.wav


    



    The problem with the above is that it doesn't do anything for files that aren't already super loud (such as recorded audio) and most of the time the audio actually just ends up clipping and then being super soft.

    



    Does anyone have suggestions on how to do this effect ? Thanks !

    


  • How to make video loop properly ?

    28 mai 2019, par woopwoop399

    I want to play this video in a loop https://www.nicovideo.jp/watch/sm16617386 . I want to play an mp4 file in such a way, that whenever it gets to some point in the video (let’s say, 30.3 seconds), it will loop back (to for example 5.85 seconds).

    I tried to add this code in ffplay.c , it didn’t work well enough, I can hear the transition. I guess seeking isn’t fast enough, or audio needs to be looped in an independant way somehow.

    static void video_refresh(void *opaque, double *remaining_time)
    
{
    
   (original code here...)
    
    time = get_master_clock(is);
    
    if (isnan(time))
    
        time = (double)is->seek_pos / AV_TIME_BASE;
    
    if (time > jump_when) {
    
        stream_seek(is, (int64_t)(6.0 * AV_TIME_BASE), (int64_t)(0.0 * AV_TIME_BASE), 0);
    
    }
    
}

    My current plan is to just dig into ffmpeg, understand how video and audio decoders work, and savestate/loadstate the decoders.

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