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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 (...)

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

Sur d’autres sites (8613)

  • vp9lpf/x86 : save one register in loopfilter surface coverage.

    20 décembre 2014, par Ronald S. Bultje
    vp9lpf/x86 : save one register in loopfilter surface coverage.

    Signed-off-by : Anton Khirnov <anton@khirnov.net>
    • [DBH] libavcodec/x86/vp9lpf.asm

  • Although ffmpeg installed, unable to save mp4 file on disk

    2 janvier 2020, par yannis

    Although I have installed ffmpeg, matplotlib reports that MovieWriter ffmpeg is unavailable and the MP4 file created is empty.

    import numpy as np
    
from matplotlib import pyplot as plt
    
from matplotlib import animation
    

    
# First set up the figure, the axis, and the plot element we want to animate
    
fig = plt.figure()
    
ax = plt.axes(xlim=(0, 2), ylim=(-2, 2))
    
line, = ax.plot([], [], lw=2)
    

    
# initialization function: plot the background of each frame
    
def init():
    
    line.set_data([], [])
    
    return line,
    

    
# animation function.  This is called sequentially
    
def animate(i):
    
    x = np.linspace(0, 2, 1000)
    
    y = np.sin(2 * np.pi * (x - 0.01 * i))
    
    line.set_data(x, y)
    
    return line,
    

    
# call the animator.  blit=True means only re-draw the parts that have changed.
    
anim = animation.FuncAnimation(fig, animate, init_func=init,
    
                               frames=200, interval=20, blit=True)
    

    
# save the animation as an mp4.  This requires ffmpeg or mencoder to be
    
# installed.  The extra_args ensure that the x264 codec is used, so that
    
# the video can be embedded in html5.  You may need to adjust this for
    
# your system: for more information, see
    
# http://matplotlib.sourceforge.net/api/animation_api.html
    
anim.save('basic_animation.mp4', fps=30, extra_args=['-vcodec', 'libx264'])
    

    
plt.show()

    I have even added the line plt.switch_backend('TkAgg') proposed in another post, nothing changed. Here is my matplotlib :

    Name: matplotlib
    
Version: 2.1.0
    
Summary: Python plotting package
    
Home-page: http://matplotlib.org

    my ffmpeg :

    Name: ffmpeg
    
Version: 1.4
    
Summary: ffmpeg python package url [https://github.com/jiashaokun/ffmpeg]
    
Home-page: https://github.com/jiashaokun/ffmpeg

    and my Python version :

    Python 3.6.5

    The error I get is :

    /usr/local/lib/python3.6/site-packages/matplotlib/animation.py:1218: UserWarning: MovieWriter ffmpeg unavailable
    
  warnings.warn("MovieWriter %s unavailable" % writer)

    This error has been reported many times on stackoverflow, each time the solution is either to install ffmpeg (mine is installed) or to add that extra line about the backend, which hasn’t changed anything for me.

    Curiously enough the plt.show()command works and I do preview an animation, but the only file format to save it is (nonanimated) PNG.

  • avformat/jvdec : Make sizeof(JVFrame) smaller to save memory

    23 septembre 2021, par Andreas Rheinhardt
    avformat/jvdec : Make sizeof(JVFrame) smaller to save memory

    Reviewed-by : Peter Ross <pross@xvid.org>
    
Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
    • [DH] libavformat/jvdec.c

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