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Autres articles (28)

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • Contribute to a better visual interface

    13 avril 2011

    MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
    Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.

  • Des sites réalisés avec MediaSPIP

    2 mai 2011, par

    Cette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
    Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.

Sur d’autres sites (7108)

  • ffmpeg, offset frame_num to start_frame when using drawtext

    22 novembre 2017, par stormy

    I’m converting a sequence of exr images to a mov with a text overlay. I’m stamping the frame number into the mov file. The issue is my sequence starts at 1001 and using text=%n is that n is zero based. Can I offset this with my start_frame number ? or use another expression to pass the exr’s frame number to the text ?

    Z:\software\ffmpeg\ffmpeg.exe -start_number 1001 -gamma 2.2 -i P:/rnd/test/render/ballRender/ballRender_v01_%4d.exr -vf "drawtext=fontfile='C\:\\Windows\\Fonts\\arial.ttf': text=%{n} :fontsize=40: x=10: y=10: fontcolor=white: box=1: boxcolor=0x00000099" -r 24 -y P:/rnd/test/render/ballRender/ballRender_v01.mov

  • I am really confused with this kind of compilation error( C ffmpeg Qt)

    31 octobre 2016, par David Tree

    I downloaded the latest ffmpeg source code and successfully installed it on Ubuntu
    But I failed to compile a simple demo.(I did included proper headers)

    Here are the error messages ,just to name a few :

    error: unknown type name 'AVFrame'
    

    
error: 'NULL' undeclared (first use in this function)
    

    
error: request for member 'streams' in something not a structure or union
    

    
error: 'AVMEDIA_TYPE_VIDEO' undeclared (first use in this function)
    

    
error: expected expression before ')' token

    Can you help me solve this problem ?

    Contents Added :

    e.g this is my includes

    extern "C"{
    
#include <libavcodec></libavcodec>avcodec.h>
    
#include <libavformat></libavformat>avformat.h>
    
#include <libswscale></libswscale>swscale.h>
    
#include <libavutil></libavutil>avutil.h>
    
}
    

    
int main(int argc, char *argv[]) {
    
AVFormatContext *pFormatCtx;
    
int i, videoStreamIdx;
    
AVCodecContext *pCodecCtx;
    
AVCodec *pCodec;
    
AVFrame *pFrame;
    
AVFrame *pFrameRGB;

    e.g AVFormatContext is declared in /usr/include/libavformat/avformat.h
    error message box shows Unknown type name AVFormatContext
    But How could it possibly be ?

  • lpc : add ff_lpc_calc_ref_coefs_f() function

    1er septembre 2015, par Rostislav Pehlivanov
    lpc : add ff_lpc_calc_ref_coefs_f() function

    This commit adds a function to get the reflection coefficients on
    
floating point samples. It’s functionally identical to
    
ff_lpc_calc_ref_coefs() except it works on float samples and will
    
return the global prediction gain. The Welch window implementation
    
which is more optimized works only on int32_t samples so a slower
    
generic expression was used.
    

    Signed-off-by : Rostislav Pehlivanov <atomnuker@gmail.com>
    • [DH] libavcodec/lpc.c
    • [DH] libavcodec/lpc.h

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