Recherche avancée

Médias (1)

Mot : - Tags -/belgique

Autres articles (95)

  • Les sons

    15 mai 2013, par

  • Automated installation script of MediaSPIP

    25 avril 2011, par

    To overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
    You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
    The documentation of the use of this installation script is available here.
    The code of this (...)

  • MediaSPIP en mode privé (Intranet)

    17 septembre 2013, par

    À partir de la version 0.3, un canal de MediaSPIP peut devenir privé, bloqué à toute personne non identifiée grâce au plugin "Intranet/extranet".
    Le plugin Intranet/extranet, lorsqu’il est activé, permet de bloquer l’accès au canal à tout visiteur non identifié, l’empêchant d’accéder au contenu en le redirigeant systématiquement vers le formulaire d’identification.
    Ce système peut être particulièrement utile pour certaines utilisations comme : Atelier de travail avec des enfants dont le contenu ne doit pas (...)

Sur d’autres sites (12963)

  • How to Play a Video file in javacv / javacpp

    28 mars 2017, par Floesmaan

    Does someone have some example code to play a simple video file with the current javaCPP/javaCV version and the FFmpegFrameGrabber ?

    I tried this solution, but its apparently too old and does not work with the current javacv version because of an incompatible FrameGrabber interface (returns a "Frame"-Object instead of an "IplImage"-Object). If I change the code manually (using Frame instead of IplImage), it returns the error message :

    java.lang.VerifyError: Bad type on operand stack
    
Exception Details:
    
  Location:
    
    org/bytedeco/javacv/FFmpegFrameGrabber.startUnsafe()V @1291: invokespecial
    
  Reason:
    
    Type 'org/bytedeco/javacpp/avutil$AVFrame' (current frame, stack[2]) is not assignable to 'org/bytedeco/javacpp/Pointer'
    
  Current Frame:
    
    bci: @1291
    
    flags: { }
    
    locals: { 'org/bytedeco/javacv/FFmpegFrameGrabber', integer, 'org/bytedeco/javacpp/avformat$AVInputFormat', 'org/bytedeco/javacpp/avutil$AVDictionary', integer, 'org/bytedeco/javacpp/avcodec$AVCodec', integer, integer, integer, integer }
    
    stack: { uninitialized 1283, uninitialized 1283, 'org/bytedeco/javacpp/avutil$AVFrame' }
    
  Bytecode:
    
    0x0000000: 2a01 b500 332a bb00 8659 01b7 0087 b500............

    FYI : I’m comparing different java libraries for playing video files and extract their pixel data (xuggler, vlcj, ...) and search for the best one. I really like to include javacv in my tests but it’s not working :(

  • Kill an unresolved promise (or ignore and move on)

    17 septembre 2017, par Trees4theForest

    Using node child process exec, I’m calling a ffmpeg conversion via a promise that takes a bit of time. Each time the use clicks "next" it starts the FFMpeg command on a new file :

    function doFFMpeg(path){
    
  return new Promise((resolve, reject) => {
    
    exec('ffmpeg (long running command)', (error, stdout, stderr) => {
    
      if (error) {
    
        reject();
    
      }
    
    }).on('exit', (code) => { // Exit returns code 0 for good 1 bad
    
      if (code) {
    
        reject();
    
      } else {
    
        resolve();
    
      }
    
    });
    
  });
    
}

    The problem is, if the user moves on to the next video before the promise is returned, I need to scrap the process and move on to converting the next video.

    How do I either :

    A) (Ideally) Cancel the current promised exec process*
    B) Let the current promised exec process complete, but just ignore that promise while I start a new one.

    *I realize that promise.cancel is not yet in ECMA, but I’d like to know of a workaround — preferably without using a 3rd party module / library.

    Attempt :

    let myChildProcess;
    

    
function doFFMpeg(path){
    

    
  myChildProcess.kill();
    

    
  return new Promise((resolve, reject) => {
    
    myChildProcess = exec('ffmpeg (long running command)', (error, stdout, stderr) => {
    
      if (error) {
    
        reject();
    
      }
    
    }).on('exit', (code) => { // Exit returns code 0 for good 1 bad
    
      if (code) {
    
        reject();
    
      } else {
    
        resolve();
    
      }
    
    });
    
  });
    
}

  • Revision 965af79241 : vp8cx_set_ref : Flush encoder. According to the current API spec we need to call

    14 août 2014, par Dmitry Kovalev

    Changed Paths :
     Modify /examples/vp8cx_set_ref.c



    vp8cx_set_ref : Flush encoder.

    According to the current API spec we need to call vpx_codec_encode() until
    vpx_codec_get_cx_data() returns NULL.

    Change-Id : Ide0c531dc0d453df8ec1edb8acb894856d6cc22e

Navigation