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  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

  • MediaSPIP Player : les contrôles

    26 mai 2010, par

    Les contrôles à la souris du lecteur
    En plus des actions au click sur les boutons visibles de l’interface du lecteur, il est également possible d’effectuer d’autres actions grâce à la souris : Click : en cliquant sur la vidéo ou sur le logo du son, celui ci se mettra en lecture ou en pause en fonction de son état actuel ; Molette (roulement) : en plaçant la souris sur l’espace utilisé par le média (hover), la molette de la souris n’exerce plus l’effet habituel de scroll de la page, mais diminue ou (...)

Sur d’autres sites (11305)

  • Unable to connect to UDP through opencv [closed]

    16 février 2020, par Heyyaya

    Currently on my windows laptop, I have setup a project which uses OpenCV to get live feed (udp) off my drone using the cv2.VideoCapture("udp ://@") command. It works very well, yet when I try running my code on the pi, it doesn’t recognize the video capture and returns errors including, unable to resize null object. Is there something I need installed inorder to get this working ?

    Thanks

  • Opencv cv2.VideoCapture('file.avi') shows first frame then throws exception

    3 novembre 2014, par holografix

    I’m trying to read a .avi included in the OpenCV original package, it’s called 768x576.avi and shows a few people walking around a street.

    The code below shows what seems to be the 1st frame and runs for a few seconds before returning an Exception.

    import cv2
    
cap = cv2.VideoCapture('768x576.avi')
    
cap.isOpened() # returns True
    
cap.get(3); cap.get(4) # returns 768 and 576
    

    
while (True):
    
    ret, frame = cap.read()
    
    cv2.imshow('frame', frame)

    Hands me this error after a few secs on the cv2.imshow line, I think it means the returned frame had no data associated it in.

    error: /tmp/opencv-7y6HHt/opencv-2.4.9/modules/highgui/src/window.cpp:261: error: (-215) size.width>0 && size.height>0 in function imshow

    I have no idea why this is happening, I’m running Yosemite, brew installed Python, OpenCv and Ffmpeg.

    opencv: stable 2.4.9, HEAD
    
http://opencv.org/
    
/usr/local/Cellar/opencv/2.4.9 (219 files, 38M) *
    

    
ffmpeg: stable 2.4.2 (bottled), HEAD
    
https://ffmpeg.org/
    
/usr/local/Cellar/ffmpeg/2.4.2 (199 files, 40M) *
    
  Poured from bottle
    
From: https://github.com/Homebrew/homebrew/blob/master/Library/Formula/ffmpeg.rb
    
==> Dependencies
    
Build: pkg-config ✔, texi2html ✘, yasm ✘
    
Recommended: x264 ✔, faac ✔, lame ✔, xvid ✔

  • failed to set frame number in opencv in cpp

    28 février 2018, par Madhu Nadendla

    I am trying to set frame position of opened videofile using OpenCV in C++ but it returns 0.

    solution 1

    bool success = capture.set(CV_CAP_PROP_POS_FRAMES, noFrame);
    

    
double frameRate = capture.get(CV_CAP_PROP_FPS);

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