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  • Des sites réalisés avec MediaSPIP

    2 mai 2011, par

    Cette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
    Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.

  • Ajouter notes et légendes aux images

    7 février 2011, par

    Pour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
    Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
    Modification lors de l’ajout d’un média
    Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...)

  • 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 (...)

Sur d’autres sites (5890)

  • Receive rtp (opus) stream from ffmpeg on other computer with VLC

    27 juin 2015, par Friendlyghost89

    I am currently trying to get an opus stream to play on a separate computer using VLC.

    Currently the setup is as follows :

    Odroid-U2 running ffmpeg to capture audio and send as rtp opus stream to remote computer....
    command used : ffmpeg -f alsa -ac 1 -i hw:0 -acodec libopus -ab 32k -ac 1 -f rtp rtp ://192.168.0.115:2032

    the remote computer (on same local network) is at 192.168.0.115
    the Odroid is at 192.168.0.124

    If i use libmp3lame in libopus’s place then the stream will run through without a problem and will not prompt the fact that it requires sdp....

    VLC output on remote computer :

    SDP required: A description in SDP format is required to receive the RTP stream. Note that rtp:// URIs cannot work with dynamic RTP payload format (97).

    If i use an *.sdp file that I drop into vlc to play the stream it does nothing (no errors and no playback)

    SDP file used :

        SDP:
    
    v=0
    
    o=- 0 0 IN IP4 127.0.0.1
    
    s=No Name
    
    c=IN IP4 192.168.0.115
    
    t=0 0
    
    a=tool:libavformat 55.2.100
    
    m=audio 2032 RTP/AVP 97
    
    b=AS:32
    
    a=rtpmap:97 opus/48000

    ffmpeg output on Odroid :

        linaro@linaro-ubuntu-desktop:~$ ffmpeg -f alsa -ac 1 -i hw:0 -acodec libopus -ab 32k -ac 1         -f rtp rtp://192.168.0.115:2032
    
    ffmpeg version git-2013-04-13-87dd62e Copyright (c) 2000-2013 the FFmpeg developers
    
      built on Apr 13 2013 09:47:34 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
    
      configuration: --enable-gpl --enable-libmp3lame --enable-libopencore-amrnb --enable-        libopencore-amrwb --enable-libspeex --enable-librtmp --enable-libtheora --enable-libvorbis         --enable-libvpx --enable-x11grab --enable-libx264 --enable-nonfree --enable-version3         --enable-libopus
    
      libavutil      52. 26.100 / 52. 26.100
    
      libavcodec     55.  2.100 / 55.  2.100
    
      libavformat    55.  2.100 / 55.  2.100
    
      libavdevice    55.  0.100 / 55.  0.100
    
      libavfilter     3. 53.101 /  3. 53.101
    
      libswscale      2.  2.100 /  2.  2.100
    
      libswresample   0. 17.102 /  0. 17.102
    
      libpostproc    52.  3.100 / 52.  3.100
    
    Guessed Channel Layout for  Input Stream #0.0 : mono
    
    Input #0, alsa, from 'hw:0':
    
      Duration: N/A, start: 1365868129.196234, bitrate: 768 kb/s
    
        Stream #0:0: Audio: pcm_s16le, 48000 Hz, mono, s16, 768 kb/s
    
    Output #0, rtp, to 'rtp://192.168.0.115:2032':
    
      Metadata:
    
        encoder         : Lavf55.2.100
    
        Stream #0:0: Audio: opus, 48000 Hz, mono, s16, 32 kb/s
    
    Stream mapping:
    
      Stream #0:0 -> #0:0 (pcm_s16le -> libopus)
    
    SDP:
    
    v=0
    
    o=- 0 0 IN IP4 127.0.0.1
    
    s=No Name
    
    c=IN IP4 192.168.0.115
    
    t=0 0
    
    a=tool:libavformat 55.2.100
    
    m=audio 2032 RTP/AVP 97
    
    b=AS:32
    
    a=rtpmap:97 opus/48000

    Any help is greatly appreciated....

    Regards

  • Saving scatterplot animations with matplotlib produces blank video file

    1er avril 2013, par user2175850

    I am having a very similar problem to this question

    but the suggested solution doesn't work for me.

    I have set up an animated scatter plot using the matplotlib animation module. This works fine when it is displaying live. I would like to save it to an avi file or something similar. The code I have written to do this does not error out but the video it produces just shows a blank set of axes or a black screen. I've done several checks and the data is being run and figure updated it's just not getting saved to video...

    I tried removing "animated=True" and "blit=True" as suggested in this question but that did not fix the problem.

    I have placed the relevant code below but can provide more if necessary. Could anyone suggest what I should do to get this working ?

    def initAnimation(self):
    
        rs, cfgs = next(self.jumpingDataStreamIterator)     
    
        #self.scat = self.axAnimation.scatter(rs[0], rs[1], c=cfgs[0], marker='o')
    
        self.scat = self.axAnimation.scatter(rs[0], rs[1], c=cfgs[0], marker='o', animated=True)
    
        return self.scat,
    

    

    
def updateAnimation(self, i):
    
    """Update the scatter plot."""
    
    rs, cfgs = next(self.jumpingDataStreamIterator)
    
    # Set x and y data...
    
    self.scat.set_offsets(rs[:2,].transpose()) 
    
    #self.scat = self.axAnimation.scatter(rs[0], rs[1], c=cfgs[0], animated=True)
    
    # Set sizes...
    
    #self.scat._sizes = 300 * abs(data[2])**1.5 + 100
    
    # Set colors..
    
    #self.scat.set_array(cfgs[0])
    
    # We need to return the updated artist for FuncAnimation to draw..
    
    # Note that it expects a sequence of artists, thus the trailing comma.
    
    matplotlib.pyplot.draw()
    
    return self.scat,
    

    
def animate2d(self, steps=None, showEvery=50, size = 25):
    
    self.figAnimation, self.axAnimation = matplotlib.pyplot.subplots()
    
    self.axAnimation.set_aspect("equal")
    
    self.axAnimation.axis([-size, size, -size, size])
    
    self.jumpingDataStreamIterator = self.jumpingDataStream(showEvery)
    

    
    self.univeseAnimation = matplotlib.animation.FuncAnimation(self.figAnimation, 
    
                            self.updateAnimation, init_func=self.initAnimation,
    
                            blit=True)
    
    matplotlib.pyplot.show()
    

    
def animate2dVideo(self,fileName=None, steps=10000, showEvery=50, size=25):
    
    self.figAnimation, self.axAnimation = matplotlib.pyplot.subplots()
    
    self.axAnimation.set_aspect("equal")
    
    self.axAnimation.axis([-size, size, -size, size])
    
    self.Writer = matplotlib.animation.writers['ffmpeg']
    
    self.writer = self.Writer(fps=1, metadata=dict(artist='Universe Simulation'))
    
    self.jumpingDataStreamIterator = self.jumpingDataStream(showEvery)
    

    
    self.universeAnimation = matplotlib.animation.FuncAnimation(self.figAnimation, 
    
                            self.updateAnimation, scipy.arange(1, 25), init_func=self.initAnimation)
    

    
    self.universeAnimation.save('C:/universeAnimation.mp4', writer = self.writer)

  • ffmpeg merge video and audio result empty file [on hold]

    10 février 2015, par ahmed-ibrahem

    I have empty file when try to merge mp4 & mp3 to mp4

    Code : ( not working )

    ffmpeg -i video.mp4 -i audio.mp3 output.mp4

    Code : ( working )

    ffmpeg -i video.mp4 -i audio.mp3 -vcodec copy -acodec copy output.mp4

    but using above working command instead of mp3 when i try wav result empty file only

    Note : This is where i got the <a href="https://github.com/JayH5/android-ffmpeg-cmdline" rel="nofollow">ffmpeg for android</a>

    Can any one help me to make it merge the audio.wav with the video.mp4 ?

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