Recherche avancée

Médias (91)

Autres articles (63)

  • Gestion des droits de création et d’édition des objets

    8 février 2011, par

    Par défaut, beaucoup de fonctionnalités sont limitées aux administrateurs mais restent configurables indépendamment pour modifier leur statut minimal d’utilisation notamment : la rédaction de contenus sur le site modifiables dans la gestion des templates de formulaires ; l’ajout de notes aux articles ; l’ajout de légendes et d’annotations sur les images ;

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • Dépôt de média et thèmes par FTP

    31 mai 2013, par

    L’outil MédiaSPIP traite aussi les média transférés par la voie FTP. Si vous préférez déposer par cette voie, récupérez les identifiants d’accès vers votre site MédiaSPIP et utilisez votre client FTP favori.
    Vous trouverez dès le départ les dossiers suivants dans votre espace FTP : config/ : dossier de configuration du site IMG/ : dossier des média déjà traités et en ligne sur le site local/ : répertoire cache du site web themes/ : les thèmes ou les feuilles de style personnalisées tmp/ : dossier de travail (...)

Sur d’autres sites (12673)

  • Live Video Streaming from android device to server [on hold]

    23 octobre 2013, par Android_sp

    hey friends i want your help

    i search a lot and study lots of code available for streaming for android but yet i can't get clear idea for me. i want simple one thing to pass stream from android device to wowza server in H.264 encoding for video and AAC for Audio.

    here some links which i already serf :

    Which not anwser :Link 1

    i also refer this most popular question from our site : Link 2

    but this useful but at some level ..

    1) Native side by using FFmpeg library i can able to send video stream but can't find a way how to encode video in H.264 format : Downloaded from here

    2) SPYdroid demo i found but from this i can send video stream to particular server :
    Downloaded from Here

    so guys if you know some thing please help me so i can find a way.

  • Ruby on Rails : FFMPEG fails after upgrade Mountain Lion to Mavericks

    25 octobre 2013, par CristianOrellanaBak

    yesterday I upgrade my OS fom Mountain Lion to Mavericks and all goes well until recently.

    We are developing a Ruby on Rails v3.2.13 application for manage videos (only MP4), which worked fine until yesterday with Mountain Lion. Today (with Mavericks) I try to upload a video but get the following error in the console :

    Running transcoding...
    
ffmpeg -y -i /Users/ME/Documents/workspace/rails/rails3-devise/public/uploads/tmp/1382653048-574-3293/thumb_con02_apv_revisado_1280x720.mp4 -ss 0 -s 180x110 -vframes 1 -f image2 -aspect 1.6363636363636365 /Users/Me/Documents/workspace/rails/rails3-devise/public/uploads/tmp/1382653048-574-3293/thumb_con02_apv_revisado_1280x720.png
    

    
Transcoding of /Users/Me/Documents/workspace/rails/rails3-devise/public/uploads/tmp/1382653048-574-3293/thumb_con02_apv_revisado_1280x720.mp4 to /Users/Me/Documents/workspace/railspublic/uploads/tmp/1382653048-574-3293/thumb_con02_apv_revisado_1280x720.png succeeded
    

    
Running transcoding...
    
ffmpeg -y -i /Users/Me/Documents/workspace/rails/public/uploads/tmp/1382653048-574-3293/thumb_con02_apv_revisado_1280x720.mp4 -ss 0 -s 180x110 -vframes 1 -f image2 -aspect 1.6363636363636365 /Users/Me/Documents/workspace/rails/rails3-devise/public/uploads/tmp/1382653048-574-3293/thumb_con02_apv_revisado_1280x720.png
    

    
Failed encoding...
    
ffmpeg -y -i /Users/Me/Documents/workspace/rails/tmp/1382653048-574-3293/thumb_con02_apv_revisado_1280x720.mp4 -ss 0 -s 180x110 -vframes 1 -f image2 -aspect 1.6363636363636365 /Users/Me/Documents/workspace/rails/uploads/tmp/1382653048-574-3293/thumb_con02_apv_revisado_1280x720.png
    

    
ffmpeg version 1.2.1 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on Sep 28 2013 20:09:07 with Apple LLVM version 4.2 (clang-425.0.24) (based on LLVM 3.2svn)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/1.2.1 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --enable-vda --cc=cc --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid --enable-libfreetype --enable-libtheora --enable-libvorbis --enable-libvpx --enable-librtmp --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-aacenc --enable-libass --enable-ffplay --enable-libspeex --enable-libschroedinger --enable-libfdk-aac --enable-libopus --enable-frei0r --enable-libopenjpeg --extra-cflags='-I/usr/local/Cellar/openjpeg/1.5.1/include/openjpeg-1.5 '
    
  libavutil      52. 18.100 / 52. 18.100
    
  libavcodec     54. 92.100 / 54. 92.100
    
  libavformat    54. 63.104 / 54. 63.104
    
  libavdevice    54.  3.103 / 54.  3.103
    
  libavfilter     3. 42.103 /  3. 42.103
    
  libswscale      2.  2.100 /  2.  2.100
    
  libswresample   0. 17.102 /  0. 17.102
    
  libpostproc    52.  2.100 / 52.  2.100
    
[mp3 @ 0x7fd493820c00] Format mp3 detected only with low score of 1, misdetection possible!
    
[mp3 @ 0x7fd49380a000] Header missing
    
    Last message repeated 1 times
    
[mp3 @ 0x7fd493820c00] decoding for stream 0 failed
    
[mp3 @ 0x7fd493820c00] Could not find codec parameters for stream 0 (Audio: mp2, 0 channels, s16p): unspecified frame size
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
[mp3 @ 0x7fd493820c00] Estimating duration from bitrate, this may be inaccurate
    
/Users/Me/Documents/workspace/rails/tmp/1382653048-574-3293/thumb_con02_apv_revisado_1280x720.mp4: could not find codec parameters
    

    
Errors: no output file created.

    I reinstall the dependencies of ffmpeg, but the problem persists.

    Any ideas or suggestions to solve the problem ?
    Thank you very much !

    EDIT NOTE : I notice this when run brew upgrade :

    ==> Upgrading ffmpeg
    
==> Installing ffmpeg dependency: libass
    
Error: libass dependency fontconfig was built with the following
    
C++ standard library: libstdc++ (from clang)
    

    
This is incompatible with the standard library being used
    
to build libass: libc++ (from clang)
    

    
Please reinstall fontconfig using a compatible compiler.
    
hint: Check https://github.com/mxcl/homebrew/wiki/C++-Standard-Libraries

  • About image opacity

    23 octobre 2013, par Mikko Koppanen — Imagick

    There is a common misconception that Imagick::setImageOpacity() would work to reduce the opacity of the image. However, as the name says the method actually sets the opacity throughout the image and thus affects also transparent areas.

    To demonstrate let’s first look at this image of a red circle on a transparent background :

    Now, let’s apply setImageOpacity on the image :

    php

    < view plain text >

    1. < ?php
    2. $im = new Imagick (’red-circle.png’) ;
    3. $im->setImageOpacity (0.5) ;
    4. $im->writeImage (’red-circle-setopacity.png’) ;
    5.  ?>

    As we can see from the resulting image the transparent background is affected as well.

    In order to actually reduce the opacity of the opaque parts Imagick::evaluateImage can be used instead :

    php

    < view plain text >

    1. < ?php
    2. $im = new Imagick (’red-circle.png’) ;
    3.  
    4. /* Divide the alpha channel value by 2 */
    5. $im->evaluateImage(Imagick: :EVALUATE_DIVIDE, 2, Imagick: :CHANNEL_ALPHA) ;
    6. $im->writeImage (’red-circle-divide.png’) ;
    7.  ?>

    And here are the results :

    As the background is already fully transparent so the divide operation causes no changes to it.

    Similar example is available in the PHP manual http://php.net/imagick.evaluateimage and I added a note to setImageOpacity page as well (at the time of writing it has not synced to documentation mirrors yet).

Navigation