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Autres articles (97)

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • Support de tous types de médias

    10 avril 2011

    Contrairement à beaucoup de logiciels et autres plate-formes modernes de partage de documents, MediaSPIP a l’ambition de gérer un maximum de formats de documents différents qu’ils soient de type : images (png, gif, jpg, bmp et autres...) ; audio (MP3, Ogg, Wav et autres...) ; vidéo (Avi, MP4, Ogv, mpg, mov, wmv et autres...) ; contenu textuel, code ou autres (open office, microsoft office (tableur, présentation), web (html, css), LaTeX, Google Earth) (...)

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

Sur d’autres sites (8393)

  • Revision 6eb2cacf0d : Added a speed feature "allow_skip_recode" This commit added a speed feature to

    25 mars 2014, par Yaowu Xu

    Changed Paths :
     Modify /vp9/encoder/vp9_encodeframe.c


     Modify /vp9/encoder/vp9_onyx_if.c


     Modify /vp9/encoder/vp9_onyx_int.h



    Added a speed feature "allow_skip_recode"

    This commit added a speed feature to make the logic of calculating
    skip_recode on a block level more explicit. This also enable the
    feature to be enabled at speed 5 where the previous logic is too
    conservative, help gain back the lost speed for —rt(-5).

    Change-Id : Ieb37ca3e85c2e7bda343486edf13d5f5395f2233

  • Getting “field has incomplete type” and "conflicting types"

    4 novembre 2013, par Viet

    I'm trying build pjsip from source with video support by gcc on ubuntu. After i success full run ./configure and make dep, i run make and i have error below :

    ../src/pjmedia/ffmpeg_util.c:46:18: error: field ‘codec_id’ has incomplete type
    
../src/pjmedia/ffmpeg_util.c:148:13: error: conflicting types for ‘pjmedia_format_id_to_CodecID’
    
../src/pjmedia/ffmpeg_util.h:23:13: note: previous declaration of ‘pjmedia_format_id_to_CodecID’ was here
    
../src/pjmedia/ffmpeg_util.c: In function ‘pjmedia_format_id_to_CodecID’:
    
../src/pjmedia/ffmpeg_util.c:154:35: warning: comparison between pointer and integer [enabled by default]
    
../src/pjmedia/ffmpeg_util.c:155:6: error: dereferencing pointer to incomplete type
    
../src/pjmedia/ffmpeg_util.c:155:6: warning: statement with no effect [-Wunused-value]
    
../src/pjmedia/ffmpeg_util.c:160:5: error: dereferencing pointer to incomplete type
    
../src/pjmedia/ffmpeg_util.c:160:5: warning: statement with no effect [-Wunused-value]
    
../src/pjmedia/ffmpeg_util.c: At top level:
    
../src/pjmedia/ffmpeg_util.c:164:55: error: parameter 1 (‘codec_id’) has incomplete type

    Here is the code in ffmpeg_util.h and ffmpeg_util.c

    ffmpeg_util.h

    #ifndef __PJMEDIA_FFMPEG_UTIL_H__
    
#define __PJMEDIA_FFMPEG_UTIL_H__
    

    
#include <pjmedia></pjmedia>format.h>
    

    
#ifdef _MSC_VER
    
#   ifndef __cplusplus
    
#   define inline _inline
    
#   endif
    
#   pragma warning(disable:4244) /* possible loss of data */
    
#endif
    

    
#include <libavutil></libavutil>avutil.h>
    
#include <libavcodec></libavcodec>avcodec.h>
    

    
void pjmedia_ffmpeg_add_ref();
    
void pjmedia_ffmpeg_dec_ref();
    

    
pj_status_t pjmedia_format_id_to_PixelFormat(pjmedia_format_id fmt_id,
    
                         enum PixelFormat *pixel_format);
    

    
pj_status_t PixelFormat_to_pjmedia_format_id(enum PixelFormat pf,
    
                         pjmedia_format_id *fmt_id);
    

    
pj_status_t pjmedia_format_id_to_CodecID(pjmedia_format_id fmt_id,
    
                     enum CodecID *codec_id);
    

    
pj_status_t CodecID_to_pjmedia_format_id(enum CodecID codec_id,
    
                     pjmedia_format_id *fmt_id);
    

    
#endif /* __PJMEDIA_FFMPEG_UTIL_H__ */

    ffmpeg_util.c

    #include <pjmedia></pjmedia>types.h>
    
#include <pj></pj>errno.h>
    
#include <pj></pj>log.h>
    
#include <pj></pj>string.h>
    

    
#if PJMEDIA_HAS_LIBAVFORMAT &amp;&amp; PJMEDIA_HAS_LIBAVUTIL
    

    
#include "ffmpeg_util.h"
    
#include <libavformat></libavformat>avformat.h>
    

    
#define MAKE_VER(mj,mn,mi)  ((mj &lt;&lt; 16) | (mn &lt;&lt; 8) | (mi &lt;&lt; 0))
    
#define VER_AT_LEAST(mj,mn,mi)  (MAKE_VER(LIBAVUTIL_VERSION_MAJOR, \
    
                                          LIBAVUTIL_VERSION_MINOR, \
    
                                          LIBAVUTIL_VERSION_MICRO) >= \
    
                                 MAKE_VER(mj,mn,mi))
    

    

    

    
/* Conversion table between pjmedia_format_id and PixelFormat */
    
static const struct ffmpeg_fmt_table_t
    
{
    
    pjmedia_format_id   id;
    
    enum PixelFormat    pf;
    
} ffmpeg_fmt_table[] =
    
{
    
    { PJMEDIA_FORMAT_RGBA, PIX_FMT_RGBA},
    
    { PJMEDIA_FORMAT_RGB24,PIX_FMT_BGR24},
    
    { PJMEDIA_FORMAT_BGRA, PIX_FMT_BGRA},
    
#if VER_AT_LEAST(51,20,1)
    
    { PJMEDIA_FORMAT_GBRP, PIX_FMT_GBR24P},
    
#endif
    

    
    { PJMEDIA_FORMAT_AYUV, PIX_FMT_NONE},
    
    { PJMEDIA_FORMAT_YUY2, PIX_FMT_YUYV422},
    
    { PJMEDIA_FORMAT_UYVY, PIX_FMT_UYVY422},
    
    { PJMEDIA_FORMAT_I420, PIX_FMT_YUV420P},
    
    //{ PJMEDIA_FORMAT_YV12, PIX_FMT_YUV420P},
    
    { PJMEDIA_FORMAT_I422, PIX_FMT_YUV422P},
    
    { PJMEDIA_FORMAT_I420JPEG, PIX_FMT_YUVJ420P},
    
    { PJMEDIA_FORMAT_I422JPEG, PIX_FMT_YUVJ422P},
    
};
    

    
/* Conversion table between pjmedia_format_id and CodecID */
    
static const struct ffmpeg_codec_table_t
    
{
    
    pjmedia_format_id   id;
    
    enum CodecID    codec_id;
    
} ffmpeg_codec_table[] =
    
{
    
    {PJMEDIA_FORMAT_H261,   CODEC_ID_H261},
    
    {PJMEDIA_FORMAT_H263,   CODEC_ID_H263},
    
    {PJMEDIA_FORMAT_H263P,  CODEC_ID_H263P},
    
    {PJMEDIA_FORMAT_H264,   CODEC_ID_H264},
    
    {PJMEDIA_FORMAT_MPEG1VIDEO, CODEC_ID_MPEG1VIDEO},
    
    {PJMEDIA_FORMAT_MPEG2VIDEO, CODEC_ID_MPEG2VIDEO},
    
    {PJMEDIA_FORMAT_MPEG4,  CODEC_ID_MPEG4},
    
    {PJMEDIA_FORMAT_MJPEG,  CODEC_ID_MJPEG}
    
};
    

    
static int pjmedia_ffmpeg_ref_cnt;
    

    
static void ffmpeg_log_cb(void* ptr, int level, const char* fmt, va_list vl);
    

    
void pjmedia_ffmpeg_add_ref()
    
{
    
    if (pjmedia_ffmpeg_ref_cnt++ == 0) {
    
    av_log_set_level(AV_LOG_ERROR);
    
    av_log_set_callback(&amp;ffmpeg_log_cb);
    
    av_register_all();
    
    }
    
}
    

    
void pjmedia_ffmpeg_dec_ref()
    
{
    
    if (pjmedia_ffmpeg_ref_cnt-- == 1) {
    
    /* How to shutdown ffmpeg? */
    
    }
    

    
    if (pjmedia_ffmpeg_ref_cnt &lt; 0) pjmedia_ffmpeg_ref_cnt = 0;
    
}
    

    

    
static void ffmpeg_log_cb(void* ptr, int level, const char* fmt, va_list vl)
    
{
    
    const char *LOG_SENDER = "ffmpeg";
    
    enum { LOG_LEVEL = 5 };
    
    char buf[100];
    
    int bufsize = sizeof(buf), len;
    
    pj_str_t fmt_st;
    

    
    /* Custom callback needs to filter log level by itself */
    
    if (level > av_log_get_level())
    
    return;
    

    
    /* Add original ffmpeg sender to log format */
    
    if (ptr) {
    
    AVClass* avc = *(AVClass**)ptr;
    
    len = pj_ansi_snprintf(buf, bufsize, "%s: ", avc->item_name(ptr));
    
    bufsize -= len;
    
    }
    

    
    /* Copy original log format */
    
    len = pj_ansi_strlen(fmt);
    
    if (len > bufsize-1)
    
    len = bufsize-1;
    
    pj_memcpy(buf+sizeof(buf)-bufsize, fmt, len);
    
    bufsize -= len;
    

    
    /* Trim log format */
    
    pj_strset(&amp;fmt_st, buf, sizeof(buf)-bufsize);
    
    pj_strrtrim(&amp;fmt_st);
    
    buf[fmt_st.slen] = &#39;\0&#39;;
    

    
    pj_log(LOG_SENDER, LOG_LEVEL, buf, vl);
    
}
    

    

    
pj_status_t pjmedia_format_id_to_PixelFormat(pjmedia_format_id fmt_id,
    
                         enum PixelFormat *pixel_format)
    
{
    
    unsigned i;
    
    for (i=0; iid==fmt_id &amp;&amp; t->pf != PIX_FMT_NONE) {
    
        *pixel_format = t->pf;
    
        return PJ_SUCCESS;
    
    }
    
    }
    

    
    *pixel_format = PIX_FMT_NONE;
    
    return PJ_ENOTFOUND;
    
}
    

    
pj_status_t PixelFormat_to_pjmedia_format_id(enum PixelFormat pf,
    
                         pjmedia_format_id *fmt_id)
    
{
    
    unsigned i;
    
    for (i=0; ipf == pf) {
    
        if (fmt_id) *fmt_id = t->id;
    
        return PJ_SUCCESS;
    
    }
    
    }
    

    
    return PJ_ENOTFOUND;
    
}
    

    
pj_status_t pjmedia_format_id_to_CodecID(pjmedia_format_id fmt_id,
    
                     enum CodecID *codec_id)
    
{
    
    unsigned i;
    
    for (i=0; iid==fmt_id &amp;&amp; t->codec_id != PIX_FMT_NONE) {
    
        *codec_id = t->codec_id;
    
        return PJ_SUCCESS;
    
    }
    
    }
    

    
    *codec_id = PIX_FMT_NONE;
    
    return PJ_ENOTFOUND;
    
}
    

    
pj_status_t CodecID_to_pjmedia_format_id(enum CodecID codec_id,
    
                     pjmedia_format_id *fmt_id)
    
{
    
    unsigned i;
    
    for (i=0; icodec_id == codec_id) {
    
        if (fmt_id) *fmt_id = t->id;
    
        return PJ_SUCCESS;
    
    }
    
    }
    

    
    return PJ_ENOTFOUND;
    
}
    

    

    
#ifdef _MSC_VER
    
#   pragma comment( lib, "avformat.lib")
    
#   pragma comment( lib, "avutil.lib")
    
#endif
    

    
#endif  /* #if PJMEDIA_HAS_LIBAVFORMAT &amp;&amp; PJMEDIA_HAS_LIBAVUTIL */

    Help me fix this error !

  • prores : Reject negative run and level values

    10 octobre 2013, par Luca Barbato
    prores : Reject negative run and level values

    Sample-Id : 00000611-google
    

    Reported-by : Mateusz "j00ru" Jurczyk and Gynvael Coldwind
    
CC : libav-stable@libav.org
    • [DBH] libavcodec/proresdec.c

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