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  • L’espace de configuration de MediaSPIP

    29 novembre 2010, par

    L’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 (...)

  • Déploiements possibles

    31 janvier 2010, par

    Deux types de déploiements sont envisageable dépendant de deux aspects : La méthode d’installation envisagée (en standalone ou en ferme) ; Le nombre d’encodages journaliers et la fréquentation envisagés ;
    L’encodage de vidéos est un processus lourd consommant énormément de ressources système (CPU et RAM), il est nécessaire de prendre tout cela en considération. Ce système n’est donc possible que sur un ou plusieurs serveurs dédiés.
    Version mono serveur
    La version mono serveur consiste à n’utiliser qu’une (...)

  • Sélection de projets utilisant MediaSPIP

    29 avril 2011, par

    Les exemples cités ci-dessous sont des éléments représentatifs d’usages spécifiques de MediaSPIP pour certains projets.
    Vous pensez avoir un site "remarquable" réalisé avec MediaSPIP ? Faites le nous savoir ici.
    Ferme MediaSPIP @ Infini
    L’Association Infini développe des activités d’accueil, de point d’accès internet, de formation, de conduite de projets innovants dans le domaine des Technologies de l’Information et de la Communication, et l’hébergement de sites. Elle joue en la matière un rôle unique (...)

Sur d’autres sites (5678)

  • Conflicting types error using linphone ios sdk

    4 décembre 2013, par VinZ

    I downloaded the linphone sdk for iphone sourcecode and compiled it on my machine. The SDK build was successful after few fixes. But while building the app in Xcode, it is throwing the following error :

    Error 1 :

    /linphone-iphone/submodules/linphone/mediastreamer2/src/utils/ffmpeg-priv.h:78:17: Conflicting types for 'avcodec_alloc_context3'

    Error 2 :

    /linphone-iphone/submodules/linphone/mediastreamer2/src/utils/ffmpeg-priv.h:82:5: Conflicting types for 'avcodec_open2'

    It is coming from mediastreamer2/ffmpeg source code. Any help on how to fix this is highly appreciated.

  • Rails : Encoder error when converting video using FFMPEG on Heroku

    2 janvier 2013, par andmcgregor

    I'm trying to upload a video and convert the file to mp4 and reduce the file size using the paperclip-ffmpeg and paperclip gems. Everything works fine running a local server and I'm only getting this problem on heroku. I have ffmpeg installed in vendor/ffmpeg/ (I followed these steps : https://gist.github.com/3963576). Here is the code I've got and the error I'm getting :

    models/video.rb :

    class Video < ActiveRecord::Base
    
  attr_accessible :content, :user_id, :video
    
  has_attached_file :video , :styles => { 
    
    :medium => { :geometry => "500x500", :format => 'mp4',
    
        :convert_options => { :output => { :vcodec => 'libx264',
    
        :b => '1000k', :bt => '200k',
    
        :acodec => 'libfaac', :ab => '56k', :ac => 2 } } }
    
  }, :processors => [:ffmpeg]
    

    
  belongs_to :user
    
end

    when I run heroku logs :

    2013-01-02T00:38:20+00:00 app[web.1]: Started POST "/videos" for 101.170.255.251 at 2013-01-02 00:38:20 +0000
    
2013-01-02T00:38:20+00:00 app[web.1]: Processing by VideosController#create as HTML
    
2013-01-02T00:38:20+00:00 app[web.1]:   Parameters: {"utf8"=>"✓", "authenticity_token"=>"X0IKts46TF8aFvEb1I/szFo/28omlVBXIIyJ3APz3YA=", "video"=>{"content"=>"", "video"=>#quicktime\r\n", @tempfile=#tmp/RackMultipart20130102-2-1ch9zcp>>}, "commit"=>"Post"}
    
2013-01-02T00:38:20+00:00 app[web.1]: [paperclip] [ffmpeg] ffmpeg -i "/tmp/sample20130102-2-4j5sgh.mov" 2>&1
    
2013-01-02T00:38:20+00:00 app[web.1]: [paperclip] [ffmpeg] Resize
    
2013-01-02T00:38:20+00:00 app[web.1]: [paperclip] [ffmpeg] Command Success
    
2013-01-02T00:38:20+00:00 app[web.1]: [paperclip] [ffmpeg] Making...
    
2013-01-02T00:38:20+00:00 app[web.1]: [paperclip] [ffmpeg] Building Destination File: 'sample20130102-2-4j5sgh' + 'mp4'
    
2013-01-02T00:38:20+00:00 app[web.1]: [paperclip] [ffmpeg] Destination File Built
    
2013-01-02T00:38:20+00:00 app[web.1]: [paperclip] [ffmpeg] Adding Source
    
2013-01-02T00:38:20+00:00 app[web.1]: [paperclip] [ffmpeg] Adding Geometry
    
2013-01-02T00:38:20+00:00 app[web.1]: [paperclip] [ffmpeg] Convert Options: 500x280
    
2013-01-02T00:38:20+00:00 app[web.1]: [paperclip] [ffmpeg] Adding Format
    
2013-01-02T00:38:20+00:00 app[web.1]: [paperclip] [ffmpeg] -i :source -y -vcodec libx264 -b 1000k -bt 200k -acodec libfaac -ab 56k -ac 2 -s 500x280 :dest
    
2013-01-02T00:38:20+00:00 app[web.1]: [paperclip] [ffmpeg] Extracting Target Dimensions
    
2013-01-02T00:38:20+00:00 app[web.1]: [paperclip] [ffmpeg] Building Parameters
    
2013-01-02T00:38:20+00:00 app[web.1]: [paperclip] [ffmpeg] Target Size is Available
    
2013-01-02T00:38:20+00:00 app[web.1]: [paperclip] [ffmpeg] Keeping Aspect Ratio
    
2013-01-02T00:38:20+00:00 app[web.1]: Command :: ffmpeg -i '/tmp/sample20130102-2-4j5sgh.mov' -y -vcodec libx264 -b 1000k -bt 200k -acodec libfaac -ab 56k -ac 2 -s 500x280 '/tmp/sample20130102-2-4j5sgh20130102-2-1mr35ix.mp4'
    
2013-01-02T00:38:20+00:00 app[web.1]: ffmpeg version git-2013-01-01-d079d1d Copyright (c) 2000-2012 the FFmpeg developers
    
2013-01-02T00:38:20+00:00 app[web.1]:   built on Jan  1 2013 12:59:49 with gcc 4.4.3 (Ubuntu 4.4.3-4ubuntu5)
    
2013-01-02T00:38:20+00:00 app[web.1]:   configuration: --enable-shared --disable-asm --prefix=/app/vendor/ffmpeg
    
2013-01-02T00:38:20+00:00 app[web.1]:   libavfilter     3. 30.102 /  3. 30.102
    
2013-01-02T00:38:20+00:00 app[web.1]:   libavcodec     54. 85.100 / 54. 85.100
    
2013-01-02T00:38:20+00:00 app[web.1]:   libavdevice    54.  3.102 / 54.  3.102
    
2013-01-02T00:38:20+00:00 app[web.1]:   libavutil      52. 13.100 / 52. 13.100
    
2013-01-02T00:38:20+00:00 app[web.1]:   libswresample   0. 17.102 /  0. 17.102
    
2013-01-02T00:38:20+00:00 app[web.1]:   libswscale      2.  1.103 /  2.  1.103
    
2013-01-02T00:38:20+00:00 app[web.1]:   libavformat    54. 58.100 / 54. 58.100
    
2013-01-02T00:38:21+00:00 app[web.1]:     creation_time   : 2013-01-02 00:36:58
    
2013-01-02T00:38:21+00:00 app[web.1]:     minor_version   : 0
    
2013-01-02T00:38:21+00:00 app[web.1]:     major_brand     : qt  
    
2013-01-02T00:38:21+00:00 app[web.1]: Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/tmp/sample20130102-2-4j5sgh.mov':
    
2013-01-02T00:38:21+00:00 app[web.1]:     model           : iPhone 4
    
2013-01-02T00:38:21+00:00 app[web.1]:     compatible_brands: qt  
    
2013-01-02T00:38:21+00:00 app[web.1]:     model-eng       : iPhone 4
    
2013-01-02T00:38:21+00:00 app[web.1]:     make-eng        : Apple
    
2013-01-02T00:38:21+00:00 app[web.1]:     date-eng        : 2012-12-28T00:39:34+1100
    
2013-01-02T00:38:21+00:00 app[web.1]:     encoder         : 6.0
    
2013-01-02T00:38:21+00:00 app[web.1]:     encoder-eng     : 6.0
    
2013-01-02T00:38:21+00:00 app[web.1]:   Duration: 00:00:00.03, start: 0.000000, bitrate: 9465 kb/s
    
2013-01-02T00:38:21+00:00 app[web.1]:     Stream #0:0(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 75 kb/s
    
2013-01-02T00:38:21+00:00 app[web.1]:     date            : 2012-12-28T00:39:34+1100
    
2013-01-02T00:38:21+00:00 app[web.1]:       creation_time   : 2013-01-02 00:36:58
    
2013-01-02T00:38:21+00:00 app[web.1]:     make            : Apple
    
2013-01-02T00:38:21+00:00 app[web.1]:   Metadata:
    
2013-01-02T00:38:21+00:00 app[web.1]:     Metadata:
    
2013-01-02T00:38:21+00:00 app[web.1]:       handler_name    : Core Media Data Handler
    
2013-01-02T00:38:21+00:00 app[web.1]:     Stream #0:1(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 8605 kb/s, 30 fps, 30 tbr, 600 tbn, 1200 tbc
    
2013-01-02T00:38:21+00:00 app[web.1]:     Metadata:
    
2013-01-02T00:38:21+00:00 app[web.1]:       handler_name    : Core Media Data Handler
    
2013-01-02T00:38:21+00:00 app[web.1]: Unknown encoder 'libx264'
    
2013-01-02T00:38:21+00:00 app[web.1]: Please use -b:a or -b:v, -b is ambiguous
    
2013-01-02T00:38:21+00:00 app[web.1]:       creation_time   : 2013-01-02 00:36:58
    
2013-01-02T00:38:21+00:00 app[web.1]: [paperclip] An error was received while processing: #
    
2013-01-02T00:38:21+00:00 app[web.1]:   Rendered videos/new.html.erb within layouts/application (3.2ms)
    
2013-01-02T00:38:21+00:00 heroku[router]: at=info method=POST path=/videos host=stark-sea-5654.herokuapp.com fwd=101.170.255.251 dyno=web.1 queue=0 wait=0ms connect=3ms service=3685ms status=200 bytes=1878
    
2013-01-02T00:38:21+00:00 app[web.1]:   Rendered layouts/_footer.html.erb (0.0ms)
    
2013-01-02T00:38:21+00:00 app[web.1]: Completed 200 OK in 342ms (Views: 124.8ms | ActiveRecord: 10.4ms)
    
2013-01-02T00:38:21+00:00 app[web.1]:   Rendered layouts/_header.html.erb (1.2ms)

    Everything works fine until the message Unknown encoder 'libx264' so I'm thinking it's something to do with ffmpeg perhaps ?

  • Why frame->pts increases by 20, rather than by 1 ?

    19 mars 2013, par user1914692

    Following the exmaples of ffmpeg : decoding_encoding.c and filtering_video.c, I process one video file taken by iPhone. The video file : .mov, video dimensions ; 480x272, video Codec : H.264/AVC, 30 frames per second, bitrate : 605 kbps.

    I first extract each frame, which is YUV.
    I convert YUV to RGB24, and process the RGB24, then write the RGB24 to a .ppm file. It shows the .ppm file is correct.

    Then I plan to encode processed RGB24 frames to a video file.
    Since MPEG does not support RGB24 picture format, I used AV_CODEC_ID_HUFFYUV.
    But the output video file (showing 18.5 MB) does not play. Movie Player on Ubuntu claims an error : Could not determine type of stream.
    I also tried it on VCL. It simply does not work, without any error information.

    My second questions is :
    For each extracted fram from the input video file, I get its pts as follows according to filtering_video.c :

    frame->pts = av_frame_get_best_effort_timestamp(frame);

    I print out each frame's pts, and find that it increases by 20, like below :

    pFrameRGB_count: 0,  frame->pts: 0
    
pFrameRGB_count: 1,  frame->pts: 20
    
pFrameRGB_count: 2,  frame->pts: 40
    
pFrameRGB_count: 3,  frame->pts: 60

    Where frame is the extracted frame from the input video, and pFrameRGB_count is the count for processed frame in RGB24 form.

    Why are they wrong ?

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