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Médias (91)
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Richard Stallman et le logiciel libre
19 octobre 2011, par
Mis à jour : Mai 2013
Langue : français
Type : Texte
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Stereo master soundtrack
17 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Audio
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Elephants Dream - Cover of the soundtrack
17 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Image
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#7 Ambience
16 octobre 2011, par
Mis à jour : Juin 2015
Langue : English
Type : Audio
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#6 Teaser Music
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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#5 End Title
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
Autres articles (36)
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Le profil des utilisateurs
12 avril 2011, parChaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...) -
L’espace de configuration de MediaSPIP
29 novembre 2010, parL’espace de configuration de MediaSPIP est réservé aux administrateurs. Un lien de menu "administrer" est généralement affiché en haut de la page [1].
Il permet de configurer finement votre site.
La navigation de cet espace de configuration est divisé en trois parties : la configuration générale du site qui permet notamment de modifier : les informations principales concernant le site (...) -
Contribute to a better visual interface
13 avril 2011MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.
Sur d’autres sites (8458)
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`sage -pip install —user ffmpeg` did not make the "`OSError : Error : ffmpeg does not appear to be installed.`" message go away
2 septembre 2019, par SomeoneElseI am running a Docker instance of Cocalc on a Ubuntu 16 server. Everything seems to be working but I am trying to debug why
sage -pip install --user ffmpeg
did not make the "OSError: Error: ffmpeg does not appear to be installed.
" message go away, even though it said it had been installed. Here is the full message.Error in lines 9-9
Traceback (most recent call last):
File "/usr/local/sage/local/lib/python2.7/site-packages/smc_sagews/sage_server.py", line 1188, in execute
flags=compile_flags) in namespace, locals
File "", line 1, in <module>
File "/usr/local/sage/local/lib/python2.7/site-packages/smc_sagews/sage_salvus.py", line 2944, in show
s = show0(objs, combine_all=True)
File "/usr/local/sage/local/lib/python2.7/site-packages/smc_sagews/sage_salvus.py", line 2903, in show0
b = show0(a)
File "/usr/local/sage/local/lib/python2.7/site-packages/smc_sagews/sage_salvus.py", line 2868, in show0
show_animation(obj, **kwds)
File "/usr/local/sage/local/lib/python2.7/site-packages/smc_sagews/sage_salvus.py", line 2642, in show_animation
obj.ffmpeg(t, delay=delay, **kwds)
File "/usr/local/sage/local/lib/python2.7/site-packages/sage/plot/animate.py", line 885, in ffmpeg
raise OSError(msg)
OSError: Error: ffmpeg does not appear to be installed. Saving an animation to
a movie file in any format other than GIF requires this software, so
please install it and try again.
</module>For reference, here is the code that gives the error :
n = var("n")
frames = []
xr = (x, 0, 1)
for k in srange(1, 50):
g = plot((sum((-1)^(n-1)*sin(n*x)/n,n,1,k)), xr, color="blue", legend_label='k = %d' % k)
g += plot(x/2, xr, color="green", legend_label="x/2")
frames.append(g)
a = animate(frames, ymin=0.0, ymax=1.0, legend_loc=(0.2,0.8))
a.show() -
Completely remove high frequencies from wav file with ffmpeg
21 septembre 2021, par Melvin BenderFor my speech recognition project, I'd like to completely cut off frequencies above 5000Hz on my wav files using ffmpeg.
I understand there is a lowpass filter for reducing frequencies above a certain value :


ffmpeg -i original.wav -af "lowpass=f=5000" lowpass.wav



However when I check the spectogram, it seems like frequencies above 5000 have been reduced, not completely cut off


Voice sample with 5000Hz filter


How can I completely cut off frequencies with ffmpeg ? Any other software is also fine.


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Is it possible to stream netflix in either an embedded version of chromium or using ffmpeg ?
24 février 2015, par OzBarryI’m looking into building an all-in-one media streaming application for my raspberry pi2, since there are currently very few options, and it’s scalable to other systems. The biggest hurdle I’ve found in requirements gathering is being able to stream netflix.
There have been very few attempts at getting chromium to stream netflix, and even fewer on armv7h systems, so I’m trying to look at alternatives.
My first thought is using a combination of curl and ffmpeg, and I think this would somehow work, however this doesn’t solve the issue with the DRM.
Another option would be to stream from another computer into my application. This solves the DRM issue, but encumbers my software setup, burdens users to have at least one computer that can also stream netflix, and will suffer from lag (netflix -> computer a -> computer b). The last point can be sorted out with buffering, but that may not be ideal, since it adds stress to the raspberry pi machine.
As a side note, I am using SDL2 for rendering, so I would be fine with a binary library that decodes the frames and audio, and sends it directly to a SDL renderer ad audio stream without allowing me to modify/copy it.
Does anything like these options exist ? I really just want to get a legit stream from netflix if possible, while not interferring with the DRM.