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    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
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    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • Amélioration de la version de base

    13 septembre 2013

    Jolie sélection multiple
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  • 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.
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  • Can't save matplotlib animation

    19 novembre 2014, par renger

    I am trying to get a simple animation saved using ffmpeg. I followed a tutorial to install ffmpeg, and I can now access it from the command prompt.

    Now I run this piece of code :

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

    
fig = plt.figure()
    
ax = plt.axes(xlim=(0, 2), ylim=(-2, 2))
    
line, = ax.plot([], [], lw=2)
    

    
def init():
    
    line.set_data([], [])
    
    return line,
    

    
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,
    

    
anim = animation.FuncAnimation(fig, animate, init_func=init,
    
                               frames=200, interval=20, blit=True)
    

    
mywriter = animation.FFMpegWriter()
    
anim.save('mymovie.mp4',writer=mywriter)
    

    
plt.show()

    I get this error :

    Traceback (most recent call last):
    
  File "<stdin>", line 1, in <module>
    
   File "C:\Python27\lib\site-packages\spyderlib\widgets\externalshell\sitecustomize.py", line 523, in runfile
    
    execfile(filename, namespace)
    
  File "C:\Users\Renger\.xy\startups\b.py", line 23, in <module>
    
    anim.save('mymovie.mp4',writer=mywriter)
    
  File "C:\Python27\lib\site-packages\matplotlib\animation.py", line 609, in save
    
    with writer.saving(self._fig, filename, dpi):
    
  File "C:\Python27\lib\contextlib.py", line 17, in __enter__
    
    return self.gen.next()
    
  File "C:\Python27\lib\site-packages\matplotlib\animation.py", line 166, in saving
    
    self.setup(*args)
    
  File "C:\Python27\lib\site-packages\matplotlib\animation.py", line 156, in setup
    
    self._run()
    
  File "C:\Python27\lib\site-packages\matplotlib\animation.py", line 183, in _run
    
    stdin=subprocess.PIPE)
    
  File "C:\Python27\lib\subprocess.py", line 711, in __init__
    
    errread, errwrite)
    
  File "C:\Python27\lib\subprocess.py", line 948, in _execute_child
    
    startupinfo)
    
WindowsError: [Error 2] Het systeem kan het opgegeven bestand niet vinden
    
</module></module></stdin>

    The last dutch sentence does mean something like : The system can’t find the specified file.

    What do these errors mean, and how can I solve them ?

  • Can't save matplotlib animation

    2 janvier 2020, par renger

    I am trying to get a simple animation saved using ffmpeg. I followed a tutorial to install ffmpeg, and I can now access it from the command prompt.

    Now I run this piece of code :

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

    
fig = plt.figure()
    
ax = plt.axes(xlim=(0, 2), ylim=(-2, 2))
    
line, = ax.plot([], [], lw=2)
    

    
def init():
    
    line.set_data([], [])
    
    return line,
    

    
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,
    

    
anim = animation.FuncAnimation(fig, animate, init_func=init,
    
                               frames=200, interval=20, blit=True)
    

    
mywriter = animation.FFMpegWriter()
    
anim.save('mymovie.mp4',writer=mywriter)
    

    
plt.show()

    I get this error :

    Traceback (most recent call last):
    
  File "<stdin>", line 1, in <module>
    
   File "C:\Python27\lib\site-packages\spyderlib\widgets\externalshell\sitecustomize.py", line 523, in runfile
    
    execfile(filename, namespace)
    
  File "C:\Users\Renger\.xy\startups\b.py", line 23, in <module>
    
    anim.save('mymovie.mp4',writer=mywriter)
    
  File "C:\Python27\lib\site-packages\matplotlib\animation.py", line 609, in save
    
    with writer.saving(self._fig, filename, dpi):
    
  File "C:\Python27\lib\contextlib.py", line 17, in __enter__
    
    return self.gen.next()
    
  File "C:\Python27\lib\site-packages\matplotlib\animation.py", line 166, in saving
    
    self.setup(*args)
    
  File "C:\Python27\lib\site-packages\matplotlib\animation.py", line 156, in setup
    
    self._run()
    
  File "C:\Python27\lib\site-packages\matplotlib\animation.py", line 183, in _run
    
    stdin=subprocess.PIPE)
    
  File "C:\Python27\lib\subprocess.py", line 711, in __init__
    
    errread, errwrite)
    
  File "C:\Python27\lib\subprocess.py", line 948, in _execute_child
    
    startupinfo)
    
WindowsError: [Error 2] Het systeem kan het opgegeven bestand niet vinden
    
</module></module></stdin>

    The last dutch sentence does mean something like : The system can’t find the specified file.

    What do these errors mean, and how can I solve them ?

  • mpegts : save last pcr of pcr pids in PES Context

    27 juillet 2013, par Marton Balint
    mpegts : save last pcr of pcr pids in PES Context

    Based on a patch by Reimar Döffinger.
    
http://lists.ffmpeg.org/pipermail/ffmpeg-devel/2012-September/131610.html
    

    Signed-off-by : Marton Balint <cus@passwd.hu>
    
Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
    • [DH] libavformat/mpegts.c

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