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Autres articles (104)

  • Gestion des droits de création et d’édition des objets

    8 février 2011, par

    Par défaut, beaucoup de fonctionnalités sont limitées aux administrateurs mais restent configurables indépendamment pour modifier leur statut minimal d’utilisation notamment : la rédaction de contenus sur le site modifiables dans la gestion des templates de formulaires ; l’ajout de notes aux articles ; l’ajout de légendes et d’annotations sur les images ;

  • 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 (...)

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

Sur d’autres sites (11224)

  • 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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