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    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
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    Dans le cas d’un document de type catégorie, les champs proposés par défaut sont : Texte
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    Administration > Configuration des masques de formulaire.
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Sur d’autres sites (6648)

  • Merge commit ’239d02eff3ffe9f7d40caa21dde50fb4a0e94c24’

    7 avril 2017, par Clément Bœsch
    Merge commit ’239d02eff3ffe9f7d40caa21dde50fb4a0e94c24’

    * commit ’239d02eff3ffe9f7d40caa21dde50fb4a0e94c24’ :
    
  avisynth : Cast to the right type when loading avisynth library functions
    

    This commit is a noop, we are using dlsym() instead of GetProcAdress().
    

    Merged-by : Clément Bœsch <u@pkh.me>

  • How to access Nested structure member variables

    24 octobre 2013, par JAYANTHI

    I have an structure

    typedef struct AVFilter {
    

    
    const char *name;
    
    const char *description;
    
    const AVFilterPad *inputs;
    
    const AVFilterPad *outputs;
    
    const AVClass *priv_class;
    
    int flags;
    
    int (*init)(AVFilterContext *ctx);
    
    int (*init_dict)(AVFilterContext *ctx, AVDictionary **options);
    
    void (*uninit)(AVFilterContext *ctx);
    
    int (*query_formats)(AVFilterContext *);
    
    int priv_size;      
    
    struct AVFilter *next;
    
    int (*process_command)(AVFilterContext *, const char *cmd, const char *arg, char *res, int res_len, int flags);
    
    int (*init_opaque)(AVFilterContext *ctx, void *opaque);
    

    
} AVFilter;

    I dont knw how to access nested structure variables and my code is,

        AVFilter avfilter_vsrc_color = {
    
    avfilter_vsrc_color.name            = "color",
    
    avfilter_vsrc_color.description     = NULL_IF_CONFIG_SMALL("Provide an uniformly colored input."),
    
    avfilter_vsrc_color.priv_class      = &amp;color_class, // error here
    
    avfilter_vsrc_color.priv_size       = sizeof(TestSourceContext),
    
    avfilter_vsrc_color.init            = color_init,
    
    avfilter_vsrc_color.uninit          = uninit,
    
    avfilter_vsrc_color.query_formats   = color_query_formats,
    
    avfilter_vsrc_color.inputs          = NULL,
    
    avfilter_vsrc_color.outputs         = color_outputs,
    
    avfilter_vsrc_color.process_command = color_process_command
    
};

    I have compiled the code in vs2010 and I m Getting error like

    c:\users\awki6\desktop\ffmpeg\libavfilter\vsrc_testsrc.cpp(273): error C2440: &#39;initializing&#39; : cannot convert from &#39;const AVClass *&#39; to &#39;const AVFilterPad *&#39;
    
2>          Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast

  • gcc : Undefined Reference Error

    16 mars 2014, par jamie_y

    I would like to use a function 'ff_load_image' defined in ffmpeg/libavfilter/lavfutils.h.

    program.c

    #include "../ffmpeg/libavfilter/lavfutils.h"
    

    
int main ()
    
{
    
  uint8_t* data;
    

    
  int linesize, width, height, log_ctx;
    

    
  int i = ff_load_image(&amp;data, &amp;linesize, &amp;width, &amp;height, AV_PIX_FMT_RGB24, "blue.jpg", &amp;log_ctx);
    
}

    Running

    gcc -I$HOME/ffmpeg/include program.c -L$HOME/ffmpeg/lib -lavfilter -lavcodec -lavutil

    gives undefined reference errors.

    program.c: In function \u2018main\u2019:
    
program.c:9: warning: passing argument 1 of \u2018ff_load_image\u2019 from incompatible pointer type
    
../ffmpeg/libavfilter/lavfutils.h:39: note: expected \u2018uint8_t **\u2019 but argument is of type \u2018uint8_t *\u2019
    
program.c:9: warning: passing argument 2 of \u2018ff_load_image\u2019 makes pointer from integer without a cast
    
../ffmpeg/libavfilter/lavfutils.h:39: note: expected \u2018int *\u2019 but argument is of type \u2018int\u2019
    
program.c:9: warning: passing argument 3 of \u2018ff_load_image\u2019 makes pointer from integer without a cast
    
../ffmpeg/libavfilter/lavfutils.h:39: note: expected \u2018int *\u2019 but argument is of type \u2018int\u2019
    
program.c:9: warning: passing argument 4 of \u2018ff_load_image\u2019 makes pointer from integer without a cast
    
../ffmpeg/libavfilter/lavfutils.h:39: note: expected \u2018int *\u2019 but argument is of type \u2018int\u2019
    
program.c:9: warning: passing argument 5 of \u2018ff_load_image\u2019 makes pointer from integer without a cast
    
../ffmpeg/libavfilter/lavfutils.h:39: note: expected \u2018enum AVPixelFormat *\u2019 but argument is of type \u2018int\u2019
    
program.c:9: warning: passing argument 7 of \u2018ff_load_image\u2019 makes pointer from integer without a cast
    
../ffmpeg/libavfilter/lavfutils.h:39: note: expected \u2018void *\u2019 but argument is of type \u2018int\u2019
    
/home/jamiey/ffmpeg/lib/libavfilter.a(lavfutils.o): In function `ff_load_image&#39;:
    
/home/jamiey/ffmpeg/libavfilter/lavfutils.c:38: undefined reference to `av_register_all&#39;
    
/home/jamiey/ffmpeg/libavfilter/lavfutils.c:40: undefined reference to `av_find_input_format&#39;
    
/home/jamiey/ffmpeg/libavfilter/lavfutils.c:41: undefined reference to `avformat_open_input&#39;
    
/home/jamiey/ffmpeg/libavfilter/lavfutils.c:66: undefined reference to `av_read_frame&#39;
    
/home/jamiey/ffmpeg/libavfilter/lavfutils.c:92: undefined reference to `avformat_close_input&#39;
    
/home/jamiey/ffmpeg/libavfilter/lavfutils.c:92: undefined reference to `avformat_close_input&#39;
    
/home/jamiey/ffmpeg/libavfilter/lavfutils.c:92: undefined reference to `avformat_close_input&#39;
    
/home/jamiey/ffmpeg/lib/libavcodec.a(frame_thread_encoder.o): In function `ff_frame_thread_encoder_free&#39;:
    
/home/jamiey/ffmpeg/libavcodec/frame_thread_encoder.c:225: undefined reference to `pthread_join&#39;
    
/home/jamiey/ffmpeg/lib/libavcodec.a(frame_thread_encoder.o): In function `ff_frame_thread_encoder_init&#39;:
    
/home/jamiey/ffmpeg/libavcodec/frame_thread_encoder.c:200: undefined reference to `pthread_create&#39;
    
/home/jamiey/ffmpeg/lib/libavcodec.a(pthread_frame.o): In function `ff_frame_thread_free&#39;:
    
/home/jamiey/ffmpeg/libavcodec/pthread_frame.c:575: undefined reference to `pthread_join&#39;
    
/home/jamiey/ffmpeg/lib/libavcodec.a(pthread_frame.o): In function `ff_frame_thread_init&#39;:
    
/home/jamiey/ffmpeg/libavcodec/pthread_frame.c:705: undefined reference to `pthread_create&#39;
    
/home/jamiey/ffmpeg/lib/libavcodec.a(pthread_slice.o): In function `ff_slice_thread_init&#39;:
    
/home/jamiey/ffmpeg/libavcodec/pthread_slice.c:220: undefined reference to `pthread_create&#39;
    
/home/jamiey/ffmpeg/lib/libavcodec.a(pthread_slice.o): In function `ff_slice_thread_free&#39;:
    
/home/jamiey/ffmpeg/libavcodec/pthread_slice.c:118: undefined reference to `pthread_join&#39;
    
/home/jamiey/ffmpeg/lib/libavutil.a(rational.o): In function `av_d2q&#39;:
    
/home/jamiey/ffmpeg/libavutil/rational.c:115: undefined reference to `log&#39;
    
/home/jamiey/ffmpeg/libavutil/rational.c:118: undefined reference to `floor&#39;
    
/home/jamiey/ffmpeg/lib/libavutil.a(eval.o): In function `eval_expr&#39;:
    
/home/jamiey/ffmpeg/libavutil/eval.c:183: undefined reference to `trunc&#39;
    
/home/jamiey/ffmpeg/libavutil/eval.c:182: undefined reference to `ceil&#39;
    
/home/jamiey/ffmpeg/libavutil/eval.c:181: undefined reference to `floor&#39;
    
/home/jamiey/ffmpeg/libavutil/eval.c:241: undefined reference to `pow&#39;
    
/home/jamiey/ffmpeg/libavutil/eval.c:177: undefined reference to `exp&#39;
    
/home/jamiey/ffmpeg/libavutil/eval.c:176: undefined reference to `exp&#39;
    
/home/jamiey/ffmpeg/libavutil/eval.c:287: undefined reference to `pow&#39;
    
/home/jamiey/ffmpeg/libavutil/eval.c:278: undefined reference to `floor&#39;
    
/home/jamiey/ffmpeg/lib/libavutil.a(eval.o): In function `av_strtod&#39;:
    
/home/jamiey/ffmpeg/libavutil/eval.c:112: undefined reference to `pow&#39;
    
/home/jamiey/ffmpeg/libavutil/eval.c:103: undefined reference to `pow&#39;
    
/home/jamiey/ffmpeg/libavutil/eval.c:109: undefined reference to `pow&#39;
    
/home/jamiey/ffmpeg/lib/libavutil.a(eval.o): In function `parse_primary&#39;:
    
/home/jamiey/ffmpeg/libavutil/eval.c:394: undefined reference to `sinh&#39;
    
/home/jamiey/ffmpeg/libavutil/eval.c:395: undefined reference to `cosh&#39;
    
/home/jamiey/ffmpeg/libavutil/eval.c:396: undefined reference to `tanh&#39;
    
/home/jamiey/ffmpeg/libavutil/eval.c:397: undefined reference to `sin&#39;
    
/home/jamiey/ffmpeg/libavutil/eval.c:398: undefined reference to `cos&#39;
    
/home/jamiey/ffmpeg/libavutil/eval.c:399: undefined reference to `tan&#39;
    
/home/jamiey/ffmpeg/libavutil/eval.c:400: undefined reference to `atan&#39;
    
/home/jamiey/ffmpeg/libavutil/eval.c:401: undefined reference to `asin&#39;
    
/home/jamiey/ffmpeg/libavutil/eval.c:402: undefined reference to `acos&#39;
    
/home/jamiey/ffmpeg/libavutil/eval.c:403: undefined reference to `exp&#39;
    
/home/jamiey/ffmpeg/libavutil/eval.c:404: undefined reference to `log&#39;
    
/home/jamiey/ffmpeg/libavutil/eval.c:405: undefined reference to `fabs&#39;
    
collect2: ld returned 1 exit status

    However, I was successful in running functions in other library, such as the ones in "ffmpeg/libavcodec/avcodec.h". Why is this happening to "ffmpeg/libavfilter/lavfutils.h" ?

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