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  • Les statuts des instances de mutualisation

    13 mars 2010, par

    Pour des raisons de compatibilité générale du plugin de gestion de mutualisations avec les fonctions originales de SPIP, les statuts des instances sont les mêmes que pour tout autre objets (articles...), seuls leurs noms dans l’interface change quelque peu.
    Les différents statuts possibles sont : prepa (demandé) qui correspond à une instance demandée par un utilisateur. Si le site a déjà été créé par le passé, il est passé en mode désactivé. publie (validé) qui correspond à une instance validée par un (...)

  • Problèmes fréquents

    10 mars 2010, par

    PHP et safe_mode activé
    Une des principales sources de problèmes relève de la configuration de PHP et notamment de l’activation du safe_mode
    La solution consiterait à soit désactiver le safe_mode soit placer le script dans un répertoire accessible par apache pour le site

  • ANNEXE : Les plugins utilisés spécifiquement pour la ferme

    5 mars 2010, par

    Le site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)

Sur d’autres sites (9863)

  • Error in converting audio file format from ogg to wav [on hold]

    9 juin 2014, par Sumit Bisht

    I am trying to convert an ogg format file that was created using webrtc (html5 usermedia content generated on firefox) and transferred and decoded on the server into a wav file through ffmpeg but am getting this error on cmmand line while trying to convert :

    $ ffmpeg -i 2014-6-5_16-17-54.ogg res1.wav
    
ffmpeg version 2.0.1 Copyright (c) 2000-2013 the FFmpeg developers
    
  built on May  1 2014 13:12:12 with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-4)
    
  configuration: --enable-gpl --enable-version3 --enable-shared --enable-nonfree --enable-postproc --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid
    
  libavutil      52. 38.100 / 52. 38.100
    
  libavcodec     55. 18.102 / 55. 18.102
    
  libavformat    55. 12.100 / 55. 12.100
    
  libavdevice    55.  3.100 / 55.  3.100
    
  libavfilter     3. 79.101 /  3. 79.101
    
  libswscale      2.  3.100 /  2.  3.100
    
  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, ogg, from '2014-6-5_16-17-54.ogg':
    
  Duration: 00:00:01.84, start: 0.000000, bitrate: 18 kb/s
    
    Stream #0:0: Audio: opus, 48000 Hz, mono
    
    Metadata:
    
      ENCODER         : Mozilla29.0.1
    
[graph 0 input from stream 0:0 @ 0x18dca20] Invalid sample format (null)
    
Error opening filters!

    Although, I am able to play the file on server and using the same command, am able to convert .ogg files generated somewhere else. What might be I missing ?

    Edit :
    Here’s the source code that is used to write to the file :

    1) During startup - use the methods of getUserMedia API.

    navigator.getUserMedia({
    
        audio: true,
    
        video: false
    
    }, function(stream) {
    
        audioStream = RecordRTC(stream, {
    
            bufferSize: 16384
    
        });
    
        audioStream.startRecording();

    2) During stopping of the recording - extracting the recorded information.

    function(audioDataURL) {
    
     var audioFile = {};
    
     audioFile = {
    
       contents: audioDataURL
    
     **strong text**};

    On server end, the following code is creating a file from this data :

    dataURL = dataURL.split(',').pop(); // dataURL is the audioDataURL as defined above
    
fileBuffer = new Buffer(dataURL, 'base64');
    
fs.writeFileSync(filePath, fileBuffer);

  • Resurrecting SCD

    6 août 2010, par Multimedia Mike — Reverse Engineering

    When I became interested in reverse engineering all the way back in 2000, the first Win32 disassembler I stumbled across was simply called "Win32 Program Disassembler" authored by one Sang Cho. I took to calling it ’scd’ for Sang Cho’s Disassembler. The original program versions and source code are still available for download. I remember being able to compile v0.23 of the source code with gcc under Unix ; 0.25 is no go due to extensive reliance on the Win32 development environment.

    I recently wanted to use scd again but had some trouble compiling. As was the case the first time I tried compiling the source code a decade ago, it’s necessary to transform line endings from DOS -> Unix using ’dos2unix’ (I see that this has been renamed to/replaced by ’fromdos’ on Ubuntu).

    Beyond this, it seems that there are some C constructs that used to be valid but are now rejected by gcc. The first looks like this :

    PLAIN TEXT
    C :
    1. return (int) c = *(PBYTE)((int)lpFile + vCodeOffset) ;

    Ahem, "error : lvalue required as left operand of assignment". Removing the "(int)" before the ’c’ makes the problem go away. It’s a strange way to write a return statement in general. However, ’c’ is a global variable that is apparently part of some YACC/BISON-type output.

    The second issue is when a case-switch block has a default label but with no code inside. Current gcc doesn’t like that. It’s necessary to at least provide a break statement after the default label.

    Finally, the program turns out to not be 64-bit safe. It is necessary to compile it in 32-bit mode (compile and link with the ’-m32’ flag or build on a 32-bit system). The static 32-bit binary should run fine under a 64-bit kernel.

    Alternatively : What are some other Win32 disassemblers that work under Linux ?

  • Podcast Producer 2 REST api

    11 septembre 2009

    I’ve been working on documenting the REST api that PCP2 uses for client server communication as part of a new project. I thought it might be useful to other folks. Consider this a work in progress - I’ve only documented the workflow for doing a multisource recording so far. Follow the job for the info.

    Each section gives a sample command and a sample response.

    All pages are behind basic HTTP auth.

    General sequence of events

    * get workflow list
    * get cameras
    * request status for camera (including thumbnail)
    * start cameras
    * create recording enclosure
    * stop cameras, provide submission_UUID returned by above step, include title

    *URL : https://pcpserver:8170/podcastproducer/info

    *Type : GET

    *Content : version=2

    *Response :
    <pre>
    <podcast_producer_result>
    <action>index</action>
    <status>success</status>
    <plist version="1.0">
    <dict>
    <key>server_version</key>
    <string>2.0</string>
    <key>http_auth_type</key>
    <array>
    <string>basic</string>
    <string>digest</string>
    <string>kerberos</string>
    </array>
    <key>krb_service_principals</key>
    <array>
    <string>pcast/x101-186-103-dhcp.cla.umn.edu@X101-186-103-DHCP.CLA.UMN.EDU</string>
    </array>
    <key>server_uuid</key>
    <string>DB31DA49-10AE-472C-B3B9-86A8F8112399</string>
    <key>cluster_members</key>
    <dict>
    <key>F1021B98-7E7E-44FB-8EB1-E0DA1885D5BA</key>
    <dict>
    <key>date_added</key>
    <string>Tue Sep 01 10:23:49 -0500 2009</string>
    <key>last_update</key>
    <string>Tue Sep 08 10:35:17 -0500 2009</string>
    <key>server_host</key>
    <string>x101-186-103-dhcp.cla.umn.edu</string>
    <key>server_port</key>
    <string>8170</string>
    <key>tunnel_agent_host</key>
    <string>x101-186-103-dhcp.cla.umn.edu</string>
    <key>tunnel_agent_port</key>
    <string>8175</string>
    <key>network_addrs</key>
    <array>
    <string>128.101.186.103</string>
    </array>
    </dict>
    </dict>
    </dict>
    </plist>
    </podcast_producer_result>
    </pre>

    * URL : https://pcpserver:8170/podcastproducer/workflows
    * Type : GET
    * Content : version=2&language=en
    * Response :
    <pre>
    <podcast_producer_result>
    <action>index</action>
    <status>success</status>
    <results>OK</results>
    <plist version="1.0">
    <dict>
    <key>user_fullname</key>
    <string>podcast</string>
    <key>user_shortname</key>
    <string>podcast</string>
    <key>workflows</key>
    <array>
    <dict>
    <key>name</key>
    <string>Montage</string>
    <key>title</key>
    <string>Montage</string>
    <key>description</key>
    <string>Montage workflow</string>
    <key>uuid</key>
    <string>F797D54D-1539-42AA-B6AC-3CB3A4C15EF5</string>
    <key>version</key>
    <string>2.0</string>
    <key>editor</key>
    <string>Podcast Composer</string>
    <key>sources</key>
    <array>
    <dict>
    <key>contentTypes</key>
    <array>
    <string>com.apple.quicktime-movie</string>
    <string>com.adobe.pdf</string>
    <string>com.apple.iwork.keynote.key</string>
    <string>com.apple.iwork.pages.pages</string>
    <string>org.openxmlformats.wordprocessingml.document</string>
    <string>com.microsoft.word.doc</string>
    <string>org.openxmlformats.presentationml.presentation</string>
    <string>com.microsoft.powerpoint.ppt</string>
    <string>com.microsoft.bmp</string>
    <string>com.compuserve.gif</string>
    <string>public.jpeg-2000</string>
    <string>public.jpeg</string>
    <string>com.adobe.pdf</string>
    <string>com.apple.pict</string>
    <string>public.png</string>
    <string>com.adobe.photoshop-image</string>
    <string>com.sgi.sgi-image</string>
    <string>com.truevision.tga-image</string>
    <string>public.tiff</string>
    </array>
    <key>description</key>
    <string>Any Document</string>
    <key>isFolder</key>
    <true/>
    <key>isOptional</key>
    <false/>
    <key>sourceTypes</key>
    <array>
    <string>File</string>
    </array>
    </dict>
    </array>
    <key>user_requirements</key>
    <array>
    <string>Title</string>
    <string>Description</string>
    </array>
    <key>access_control_entries</key>
    <array>
    </array>
    </dict>
    <dict>
    <key>name</key>
    <string>Single Source</string>
    <key>title</key>
    <string>Single Source</string>
    <key>description</key>
    <string>Single Source workflow</string>
    <key>uuid</key>
    <string>DEFA1587-A650-426E-92DA-01C5EB811705</string>
    <key>version</key>
    <string>2.0</string>
    <key>editor</key>
    <string>Podcast Composer</string>
    <key>sources</key>
    <array>
    <dict>
    <key>contentTypes</key>
    <array>
    <string>com.apple.quicktime-movie</string>
    </array>
    <key>description</key>
    <string>Any Video</string>
    <key>isFolder</key>
    <false/>
    <key>isOptional</key>
    <false/>
    <key>sourceTypes</key>
    <array>
    <string>Video</string>
    <string>Screen</string>
    <string>Audio</string>
    <string>File</string>
    </array>
    </dict>
    </array>
    <key>user_requirements</key>
    <array>
    <string>Title</string>
    <string>Description</string>
    </array>
    <key>access_control_entries</key>
    <array>
    </array>
    </dict>
    </array>
    </dict>
    </plist>
    </podcast_producer_result>
    </pre>
    ----

    * URL : https://pcpserver:8170/podcastproducer/cameras
    * Type : GET
    * Content : version=2
    * Response :
    <pre>
    <podcast_producer_result>
    <action>index</action>
    <status>success</status>
    <plist version="1.0">
    <dict>
    <key>cameras</key>
    <array>
    <dict>
    <key>name</key>
    <string>150-A Camera</string>
    <key>uuid</key>
    <string>307682A5-B552-4AFA-B7E2-3811D772C9A1</string>
    <key>connected_to_member_uuid</key>
    <string>F1021B98-7E7E-44FB-8EB1-E0DA1885D5BA</string>
    <key>in_use</key>
    <string>false</string>
    <key>recording_status</key>
    <string>online</string>
    <key>preview_url</key>
    <string>https://x101-186-103-dhcp.cla.umn.edu:8170/podcastproducer/previews/307682A5-B552-4AFA-B7E2-3811D772C9A1.jpg</string> ;
    <key>access_control_entries</key>
    <array>
    </array>
    </dict>
    <dict>
    <key>name</key>
    <string>150-A Epiphan</string>
    <key>uuid</key>
    <string>CE610AB0-CA50-49EB-8FFE-78E57CDCA550</string>
    <key>connected_to_member_uuid</key>
    <string>F1021B98-7E7E-44FB-8EB1-E0DA1885D5BA</string>
    <key>in_use</key>
    <string>false</string>
    <key>recording_status</key>
    <string>online</string>
    <key>preview_url</key>
    <string>https://x101-186-103-dhcp.cla.umn.edu:8170/podcastproducer/previews/CE610AB0-CA50-49EB-8FFE-78E57CDCA550.jpg</string> ;
    <key>access_control_entries</key>
    <array>
    </array>
    </dict>
    </array>
    </dict>
    </plist>
    </podcast_producer_result>
    </pre>

    * URL : https://pcpserver:8170/podcastproducer/cameras/start
    * Type : POST
    * Content : action=pause&version=2&camera_name=150-A%20Camera&controller=cameras
    * Response :
    <pre>
    <podcast_producer_result>
    <action>start</action>
    <status>success</status>
    <results>OK</results>
    </podcast_producer_result>
    </pre>

    * URL : https://pcpserver:8170/podcastproducer/cameras/status
    * Type : POST
    * Content : delay=0&action=start&version=2&camera_name=150-A%20Epiphan&controller=cameras
    * Response :
    <pre><podcast_producer_result>
    <action>status</action>
    <status>success</status>
    <results>OK</results>
    <plist version="1.0">
    <dict>
    <key>preview</key>
    <string>https://x101-186-103-dhcp.cla.umn.edu:8170/podcastproducer/previews/307682A5-B552-4AFA-B7E2-3811D772C9A1.jpg</string> ;
    <key>preview_image_data</key>
    <string>RAW JPEG DATA RAW JPEG DATA RAW JPEG DATA RAW JPEG DATA RAW JPEG DATA</string>
    <key>recording_status</key>
    <string>online</string>
    <key>started_at</key>
    <string>Tue Sep 08 09:31:40 -0500 2009</string>
    <key>stopped_at</key>
    <string>Tue Sep 08 09:32:10 -0500 2009</string>
    <key>elapsed</key>
    <string>41</string>
    <key>last_error</key>
    <string>805306368</string>
    </dict>
    </plist>
    </podcast_producer_result>
    </pre>

    * URL : https://pcpserver:8170/podcastproducer/cameras/pause
    * Type : POST
    * Content : action=pause&version=2&camera_name=150-A%20Camera&controller=cameras
    * Response :
    <pre><podcast_producer_result>
    <action>status</action>
    <status>success</status>
    <results>OK</results>
    <plist version="1.0">
    <dict>
    <key>preview</key>
    <string>https://x101-186-103-dhcp.cla.umn.edu:8170/podcastproducer/previews/307682A5-B552-4AFA-B7E2-3811D772C9A1.jpg</string> ;
    <key>recording_status</key>
    <string>online</string>
    <key>started_at</key>
    <string>Tue Sep 08 09:31:40 -0500 2009</string>
    <key>stopped_at</key>
    <string>Tue Sep 08 09:32:10 -0500 2009</string>
    <key>elapsed</key>
    <string>41</string>
    <key>last_error</key>
    <string>805306368</string>
    </dict>
    </plist>
    </podcast_producer_result></pre>

    * URL : https://pcpserver:8170/podcastproducer/cameras/stop
    * Type : POST
    * Content : workflow_name=&UserMetadata_Description=&submission_uuid=7497E3AC-0A75-4C7C-8C66-26294C9274FE&action=stop&version=2&camera_name=150-A%20Epiphan&controller=cameras&UserMetadata_Title=Test123
    * Response :
    <pre><podcast_producer_result>
    <action>stop</action>
    <status>success</status>
    <results>OK</results>
    </podcast_producer_result>
    </pre>

    * URL : https://pcpserver:8170/podcastproducer/recordings/create
    * Type : POST
    * Content : version=2&workflow_uuid=C6EF52A7-04E3-477D-9F38-6B61F108D7B9
    * Response :
    <pre>
    <podcast_producer_result>
    <action>create</action>
    <status>success</status>
    <results>OK</results>
    <plist version="1.0">
    <dict>
    <key>workflow_uuid</key>
    <string>C6EF52A7-04E3-477D-9F38-6B61F108D7B9</string>
    <key>recording_uuid</key>
    <string>FD5A1459-F7CE-41FA-8155-049DF774298B</string>
    <key>submission_uuids</key>
    <array>
    <string>A626D8E4-E439-4E57-9982-DB4BD035CB41</string>
    <string>CFBCCB74-A41F-42D3-BEAA-58165B1116C6</string>
    </array>
    </dict>
    </plist>
    </podcast_producer_result>
    </pre>

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