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Autres articles (19)

  • Support de tous types de médias

    10 avril 2011

    Contrairement à beaucoup de logiciels et autres plate-formes modernes de partage de documents, MediaSPIP a l’ambition de gérer un maximum de formats de documents différents qu’ils soient de type : images (png, gif, jpg, bmp et autres...) ; audio (MP3, Ogg, Wav et autres...) ; vidéo (Avi, MP4, Ogv, mpg, mov, wmv et autres...) ; contenu textuel, code ou autres (open office, microsoft office (tableur, présentation), web (html, css), LaTeX, Google Earth) (...)

  • D’autres logiciels intéressants

    12 avril 2011, par

    On ne revendique pas d’être les seuls à faire ce que l’on fait ... et on ne revendique surtout pas d’être les meilleurs non plus ... Ce que l’on fait, on essaie juste de le faire bien, et de mieux en mieux...
    La liste suivante correspond à des logiciels qui tendent peu ou prou à faire comme MediaSPIP ou que MediaSPIP tente peu ou prou à faire pareil, peu importe ...
    On ne les connais pas, on ne les a pas essayé, mais vous pouvez peut être y jeter un coup d’oeil.
    Videopress
    Site Internet : (...)

  • 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 (3492)

  • What is the right command to convert an mp3 file to the required codec version (MPEG version 2) and bit rate (48 kbps) for Amazon Alexa SSML ?

    6 mai 2017, par Asimov4

    I am trying to convert an mp3 file to the format expected by the audio tag in the Amazon Alexa SSML markup language as described here : https://developer.amazon.com/public/solutions/alexa/alexa-skills-kit/docs/speech-synthesis-markup-language-ssml-reference

    The documentation recommends using https://www.ffmpeg.org/ffmpeg.html

    I tried this command but can’t find the right codec to use :
    ffmpeg -y -i input.mp3 -ar 44100 -ab 48k -codec:a mpeg2 -ac 1 output.mp3

    I know I need to convert the file because Alexa fails with the following error : The audio is not of a supported MPEG version

  • Install gstreamer on EC2 Amazon Linux AMI ?

    6 décembre 2015, par vy32

    I’m trying to install QT5.5 on Amazon EC2 Linux, which apparently requires that I install some kind of multimedia support. It looks like that comes from gstreamer.

    yum search gstreamer turns up :

    [ec2-user@ip-172-30-1-58 ~]$ yum search gstreamer
    
Loaded plugins: priorities, update-motd, upgrade-helper
    
23 packages excluded due to repository priority protections
    
============================================== N/S matched: gstreamer ==============================================
    
gstreamer-ffmpeg.x86_64 : GStreamer FFmpeg-based plug-ins
    
gstreamer-ffmpeg-debuginfo.x86_64 : Debug information for package gstreamer-ffmpeg
    
gstreamer-plugins-bad.x86_64 : GStreamer streaming media framework "bad" plug-ins
    
gstreamer-plugins-bad-debuginfo.x86_64 : Debug information for package gstreamer-plugins-bad
    
gstreamer-plugins-bad-nonfree.x86_64 : Non Free GStreamer streaming media framework "bad" plug-ins
    
gstreamer-plugins-bad-nonfree-debuginfo.x86_64 : Debug information for package gstreamer-plugins-bad-nonfree
    
gstreamer-plugins-ugly.x86_64 : GStreamer streaming media framework "ugly" plug-ins
    
gstreamer-plugins-ugly-debuginfo.x86_64 : Debug information for package gstreamer-plugins-ugly
    
gstreamer-plugins-ugly-devel-docs.noarch : Development documentation for the GStreamer "ugly" plug-ins
    
gstreamer1-libav.x86_64 : GStreamer 1.0 libav-based plug-ins
    
gstreamer1-libav-debuginfo.x86_64 : Debug information for package gstreamer1-libav
    
gstreamer1-plugins-bad-freeworld.x86_64 : GStreamer 1.0 streaming media framework "bad" plug-ins
    
gstreamer1-plugins-bad-freeworld-debuginfo.x86_64 : Debug information for package gstreamer1-plugins-bad-freeworld
    
gstreamer1-plugins-ugly.x86_64 : GStreamer 1.0 streaming media framework "ugly" plug-ins
    
gstreamer1-plugins-ugly-debuginfo.x86_64 : Debug information for package gstreamer1-plugins-ugly
    
gstreamer1-plugins-ugly-devel-docs.noarch : Development documentation for the GStreamer "ugly" plug-ins
    
gstreamer1-vaapi.x86_64 : GStreamer plugins to use VA API video acceleration
    
gstreamer1-vaapi-debuginfo.x86_64 : Debug information for package gstreamer1-vaapi
    
gstreamer1-vaapi-devel.x86_64 : Development files for gstreamer1-vaapi
    
qt-gstreamer.x86_64 : C++ bindings for GStreamer with a Qt-style API
    
qt-gstreamer-debuginfo.x86_64 : Debug information for package qt-gstreamer
    
qt-gstreamer-devel.x86_64 : Header files and development documentation for qt-gstreamer
    

    
  Name and summary matches only, use "search all" for everything.
    
[ec2-user@ip-172-30-1-58 ~]$ %

    However, when I try to install one of these, I get this error :

    $ sudo yum install -y gstreamer-ffmpeg
    
Loaded plugins: priorities, update-motd, upgrade-helper
    
23 packages excluded due to repository priority protections
    
Resolving Dependencies
    
--> Running transaction check
    
---> Package gstreamer-ffmpeg.x86_64 0:0.10.13-15.el7.nux will be installed
    
--> Processing Dependency: liborc-0.4.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
    
--> Processing Dependency: libgstvideo-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
    
--> Processing Dependency: libgstreamer-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
    
--> Processing Dependency: libgstpbutils-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
    
--> Processing Dependency: libgstbase-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
    
--> Processing Dependency: libgstaudio-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
    
--> Finished Dependency Resolution
    
Error: Package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64 (nux-dextop)
    
           Requires: liborc-0.4.so.0()(64bit)
    
Error: Package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64 (nux-dextop)
    
           Requires: libgstreamer-0.10.so.0()(64bit)
    
Error: Package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64 (nux-dextop)
    
           Requires: libgstbase-0.10.so.0()(64bit)
    
Error: Package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64 (nux-dextop)
    
           Requires: libgstaudio-0.10.so.0()(64bit)
    
Error: Package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64 (nux-dextop)
    
           Requires: libgstpbutils-0.10.so.0()(64bit)
    
Error: Package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64 (nux-dextop)
    
           Requires: libgstvideo-0.10.so.0()(64bit)
    
 You could try using --skip-broken to work around the problem
    
 You could try running: rpm -Va --nofiles --nodigest
    
[ec2-user@ip-172-30-1-58 ~]$

    Supplying the suggested --skip-broken doesn’t help :

    [ec2-user@ip-172-30-1-58 ~]$ sudo yum install -y gstreamer-ffmpeg --skip-broken
    
Loaded plugins: priorities, update-motd, upgrade-helper
    
23 packages excluded due to repository priority protections
    
Resolving Dependencies
    
--> Running transaction check
    
---> Package gstreamer-ffmpeg.x86_64 0:0.10.13-15.el7.nux will be installed
    
--> Processing Dependency: liborc-0.4.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
    
--> Processing Dependency: libgstvideo-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
    
--> Processing Dependency: libgstreamer-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
    
--> Processing Dependency: libgstpbutils-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
    
--> Processing Dependency: libgstbase-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
    
--> Processing Dependency: libgstaudio-0.10.so.0()(64bit) for package: gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64
    

    
Packages skipped because of dependency problems:
    
    gstreamer-ffmpeg-0.10.13-15.el7.nux.x86_64 from nux-dextop
    
[ec2-user@ip-172-30-1-58 ~]$

    So how do I install gstreamer-ffmpeg ? Why aren’t the dependencies automatically being followed ?

  • Opening Video with opencv3 and python on Amazon EC2

    11 octobre 2016, par stml

    I successfully set up python and opencv3 on an t2.micro instance by following these instructions : http://stackoverflow.com/a/38867965/1213715

    The script which worked on my local machine no longer works. The problem seems to be with importing video. The start of my code now looks like this :

    import numpy as np
    
import cv2
    

    
cap = cv2.VideoCapture('/home/ec2-user/test.mov')
    

    
if(cap.isOpened() == False):
    
    print "Can't open video"
    
    exit()

    This exits every time. I have tried different paths and different video formats (including .avi).

    In other threads, I read that ffmpeg is essential to cv2 video functions, and successfully installed this using the instructions at https://forums.aws.amazon.com/thread.jspa?messageID=524523. I can now run ffmpeg from the command line - but it has not changed the cv2 output.

    Do I need to link ffmpeg to cv2 somehow, or do I need to recompile entirely - and if so, what change should I make to the original installation instructions ?

    Python version 2.7.12

    Opencv version 3.1.0

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