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  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
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  • Contribute to documentation

    13 avril 2011

    Documentation is vital to the development of improved technical capabilities.
    MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
    To contribute, register to the project users’ mailing (...)

  • 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
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Sur d’autres sites (6497)

  • Android streaming screen [closed]

    21 mai 2013, par blganesh

    Im able to share screen via ffmpeg
    ./ffmpeg -f fbdev -r 24 -i /dev/graphics/fb0 http://localhost:8090/feed1.ffm

    But the output live stream is very slow.
    Following is the conf file which I'm using.

    `Port 8090
    RTSPPort 7654
    BindAddress 0.0.0.0
    RTSPBindAddress 0.0.0.0
    MaxHTTPConnections 2000
    MaxClients 1000
    MaxBandwidth 1000
    CustomLog -
    NoDaemon
    <feed>
    File /data/live1.ffm
    FileMaxSize 40M
    NoAudio
    ACL allow 127.0.0.1
    </feed>
    <stream>
    Feed live1.ffm
    Format mpeg2video
    NoAudio
    VideoBitRate 1024
    VideoFrameRate 1
    VideoBufferSize 10000
    VideoSize 480x800
    VideoQMin 1
    VideoQMax 15
    </stream>`

    Kindly let me know how should I change my conf file to get a fast video output.

  • How to capture camera devices on Windows using Libav ?

    22 septembre 2011, par Occulta

    Is there any way to capture frames from as many camera types as DirectShow do on Windows platform using Libav ? I need to capture a camera output without using DirectShow filters and I want my application to work with many camera devices types.

    I have searched the Internet about this capability of libav and found that it can be done via libav using special input format "vfwcap". Something like that (don't sure about code correctness - I wrote it by myself) :

    AVFormatParameters formatParams = NULL;
    AVInputFormat* pInfmt = NULL;
    pInFormatCtx*  pInFormatCtx = NULL;

    av_register_all();

    //formatParams.device = NULL; //this was probably deprecated and then removed
    formatParams.channel = 0;
    formatParams.standard = "ntsc"; //deprecated too but still available
    formatParams.width = 640;
    formatParams.height = 480;
    formatParams.time_base.num = 1000;
    formatParams.time_base.den = 30000; //so we want 30000/1000 = 30 frames per second
    formatParams.prealloced_context = 0;


    pInfmt = av_find_input_format("vfwcap");
    if( !pInfmt )
    {
     fprintf(stderr,"Unknown input format\n");
     return -1;
    }

    // Open video file (formatParams can be NULL for autodetecting probably)
    if (av_open_input_file(&amp;pInFormatCtx, 0, pInfmt, 0, formatParams) &lt; 0)
      return -1; // Couldn&#39;t open device

    /* Same as video4linux code*/

    So another question is : how many devices are supported by Libav ? All I have found about capture cameras output with libav on windows is advice to use DirectShow for this purpose because libav supports too few devices. Maybe situation has already changed now and it does support enough devices to use it in production applications ?

    If this isn't possible.. Well I hope my question won't be useless and this composed from different sources piece of code will help someone interested in this theme 'coz there are really too few information about it in the whole internet.

  • Andriod streaming screen [closed]

    9 avril 2013, par blganesh

    Im able to share screen via ffmpeg
    ./ffmpeg -f fbdev -r 24 -i /dev/graphics/fb0 http://localhost:8090/feed1.ffm

    But the output live stream is very slow.
    Following is the conf file which I'm using.

    `Port 8090
    RTSPPort 7654
    BindAddress 0.0.0.0
    RTSPBindAddress 0.0.0.0
    MaxHTTPConnections 2000
    MaxClients 1000
    MaxBandwidth 1000
    CustomLog -
    NoDaemon
    <feed>
    File /data/live1.ffm
    FileMaxSize 40M
    NoAudio
    ACL allow 127.0.0.1
    </feed>
    <stream>
    Feed live1.ffm
    Format mpeg2video
    NoAudio
    VideoBitRate 1024
    VideoFrameRate 1
    VideoBufferSize 10000
    VideoSize 480x800
    VideoQMin 1
    VideoQMax 15
    </stream>`

    Kindly let me know how should I change my conf file to get a fast video output.