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Autres articles (51)

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • Submit bugs and patches

    13 avril 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
    You may also (...)

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

Sur d’autres sites (6408)

  • What is Qt's equivalent of SDL audio ?

    7 août 2012, par Saptarshi

    There is an old code that uses SDL audio to output music. I am porting it to Qt and I want to replace SDL audio with native Qt audio API.

    The flow, in simplest terms, is this :

    ...
    
// Initialization
    
wanted_spec.callback = sdl_audio_callback;
    
SDL_OpenAudio(&wanted_spec, &spec);
    
...
    

    
// copies raw data to audio buffer
    
static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)

    Which audio Api of Qt should I be using ? There is no video involved

  • FFMPEG : Creating a video, which has the maximun value per pixel of n-input videos

    18 décembre 2016, par LighthouseZGZ

    Imagine a collection of short videos, each one showing a shooting star.

    I would like to get a composite video of all shooting stars. Not in sequence, at the same time. The (x,y) pixel of the nth frame in the output video should have the maximum value for that (x,y) pixel of the same frame in all the videos.

    I know how to do that using images and imagemagick :

    magick *.bmp -evaluate-sequence max output.bmp

    I need something similar for video. Frame by frame.

    Any help would be appreciated. Thanks.

  • Output a new mp3 file from a lengthy mp3 mix which previews the audio at 5 different points of the mix

    17 novembre 2020, par Paul Hinett

    I basically have a large collection of audio mix files in mp3 format, say approx 2 hours worth of music per mp3.

    


    I am trying to work out the best way using the command line to output a preview MP3 file, this mp3 should have 5-10 second previews of the full mix at 6 or so points during the mix.

    


    Example
00:00:10 - 00:00:20
00:30:00 - 00:30:10
00:50:00 - 00:50:10
...

    


    So with the small mp3 file, you can kind of get an idea of the whole mix in a very short preview.

    


    I have seen ffmpeg etc that can preview say 5 seconds up to 15 seconds of an audio, but not sure if this is capable of doing multiple points of the audio.

    


    Any ideas or help is appreciated.

    


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