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  • Qu’est ce qu’un éditorial

    21 juin 2013, par

    Ecrivez votre de point de vue dans un article. Celui-ci sera rangé dans une rubrique prévue à cet effet.
    Un éditorial est un article de type texte uniquement. Il a pour objectif de ranger les points de vue dans une rubrique dédiée. Un seul éditorial est placé à la une en page d’accueil. Pour consulter les précédents, consultez la rubrique dédiée.
    Vous pouvez personnaliser le formulaire de création d’un éditorial.
    Formulaire de création d’un éditorial Dans le cas d’un document de type éditorial, les (...)

  • 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 ;

  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

Sur d’autres sites (13915)

  • Streaming trouble, ffmpeg unable to find a suitable output format

    9 octobre 2018, par Michael Munyanyi

    FFMPEG for some odd reason won’t allow me to output a stream, it’s odd because I have two computers available and one, which had low CPU was having trouble decoding but the stream worked, so I switched my network cables and I have tried transcoding with the same command and it will not output a stream.

    My command reads

    ffmpeg -i udp://@xxx.x.x.xx.xxxx -f mpegts udp://@xxx.x.x.xx.xxxx

    I also tried

    ffmpeg -i udp://@xxx.x.x.xx.xxxx udp://@xxx.x.x.xx.xxxx

    The error reads

    [NULL @ 000001c95eeb2600] Unable to find a suitable output format for udp://@xxx.x.x.xx.xxxx'
    
udp://@xxx.x.x.xx.xxxx: Invalid argument"

    full log

    C:\Users\xxx\Downloads\Installations\FFMPEG\bin>ffmpeg -i udp://@xxx.x.x.xx:xxxx -f mpegts udp://@xxx.x.x.xx.xxxx
    
ffmpeg version 4.0.2 Copyright (c) 2000-2018 the FFmpeg developers
    
  built with gcc 7.3.1 (GCC) 20180722
    
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
    
  libavutil      56. 14.100 / 56. 14.100
    
  libavcodec     58. 18.100 / 58. 18.100
    
  libavformat    58. 12.100 / 58. 12.100
    
  libavdevice    58.  3.100 / 58.  3.100
    
  libavfilter     7. 16.100 /  7. 16.100
    
  libswscale      5.  1.100 /  5.  1.100
    
  libswresample   3.  1.100 /  3.  1.100
    
  libpostproc    55.  1.100 / 55.  1.100
    
[h264 @ 000001c3a9dff900] non-existing SPS 0 referenced in buffering period
    
[h264 @ 000001c3a9dff900] SPS unavailable in decode_picture_timing
    
[h264 @ 000001c3a9dff900] non-existing PPS 0 referenced
    
[h264 @ 000001c3a9dff900] non-existing SPS 0 referenced in buffering period
    
[h264 @ 000001c3a9dff900] SPS unavailable in decode_picture_timing
    
[h264 @ 000001c3a9dff900] non-existing PPS 0 referenced
    
[h264 @ 000001c3a9dff900] decode_slice_header error
    
[h264 @ 000001c3a9dff900] no frame!
    
[h264 @ 000001c3a9dff900] non-existing SPS 0 referenced in buffering period
    
[h264 @ 000001c3a9dff900] SPS unavailable in decode_picture_timing
    
[h264 @ 000001c3a9dff900] non-existing PPS 0 referenced
    
[h264 @ 000001c3a9dff900] non-existing SPS 0 referenced in buffering period
    
[h264 @ 000001c3a9dff900] SPS unavailable in decode_picture_timing
    
[h264 @ 000001c3a9dff900] non-existing PPS 0 referenced
    
[h264 @ 000001c3a9dff900] decode_slice_header error
    
[h264 @ 000001c3a9dff900] no frame!
    
[h264 @ 000001c3a9dff900] non-existing SPS 0 referenced in buffering period
    
[h264 @ 000001c3a9dff900] SPS unavailable in decode_picture_timing
    
[h264 @ 000001c3a9dff900] non-existing PPS 0 referenced
    
[h264 @ 000001c3a9dff900] non-existing SPS 0 referenced in buffering period
    
[h264 @ 000001c3a9dff900] SPS unavailable in decode_picture_timing
    
[h264 @ 000001c3a9dff900] non-existing PPS 0 referenced
    
[h264 @ 000001c3a9dff900] decode_slice_header error
    
[h264 @ 000001c3a9dff900] no frame!
    
[h264 @ 000001c3a9dff900] non-existing SPS 0 referenced in buffering period
    
[h264 @ 000001c3a9dff900] SPS unavailable in decode_picture_timing
    
[h264 @ 000001c3a9dff900] non-existing PPS 0 referenced
    
[h264 @ 000001c3a9dff900] non-existing SPS 0 referenced in buffering period
    
[h264 @ 000001c3a9dff900] SPS unavailable in decode_picture_timing
    
[h264 @ 000001c3a9dff900] non-existing PPS 0 referenced
    
[h264 @ 000001c3a9dff900] decode_slice_header error
    
[h264 @ 000001c3a9dff900] no frame!
    
[h264 @ 000001c3a9dff900] non-existing SPS 0 referenced in buffering period
    
[h264 @ 000001c3a9dff900] SPS unavailable in decode_picture_timing
    
[h264 @ 000001c3a9dff900] non-existing PPS 0 referenced
    
[h264 @ 000001c3a9dff900] non-existing SPS 0 referenced in buffering period
    
[h264 @ 000001c3a9dff900] SPS unavailable in decode_picture_timing
    
[h264 @ 000001c3a9dff900] non-existing PPS 0 referenced
    
[h264 @ 000001c3a9dff900] decode_slice_header error
    
[h264 @ 000001c3a9dff900] no frame!
    
[h264 @ 000001c3a9dff900] non-existing SPS 0 referenced in buffering period
    
[h264 @ 000001c3a9dff900] SPS unavailable in decode_picture_timing
    
[h264 @ 000001c3a9dff900] non-existing PPS 0 referenced
    
[h264 @ 000001c3a9dff900] non-existing SPS 0 referenced in buffering period
    
[h264 @ 000001c3a9dff900] SPS unavailable in decode_picture_timing
    
[h264 @ 000001c3a9dff900] non-existing PPS 0 referenced
    
[h264 @ 000001c3a9dff900] decode_slice_header error
    
[h264 @ 000001c3a9dff900] no frame!
    
[mpegts @ 000001c3a9dea3c0] PES packet size mismatch
    
[h264 @ 000001c3a9dff900] Reference 2 >= 2
    
[h264 @ 000001c3a9dff900] error while decoding MB 62 39, bytestream 99129
    
[h264 @ 000001c3a9dff900] reference picture missing during reorder
    
[h264 @ 000001c3a9dff900] Missing reference picture, default is 65373
    
Input #0, mpegts, from 'udp://@xxx.x.x.xx:xxxx':
    
  Duration: N/A, start: 87772.784411, bitrate: N/A
    
  Program 4030
    
    Metadata:
    
      service_name    : SONY TV HD
    
      service_provider: BSkyB
    
    Stream #0:0[0x208]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(tv, bt709, top first), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 50 tbr, 90k tbn, 50 tbc
    
    Stream #0:1[0x281](eng): Audio: ac3 ([6][0][0][0] / 0x0006), 48000 Hz, 5.1(side), fltp, 384 kb/s
    
    Stream #0:2[0x243](eng): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006)
    
[udp @ 000001c3aa7aaa00] getaddrinfo(xxx.x.x.xx.xxxx, 0): The name does not resolve for the supplied parameters
    
udp://@xxx.x.x.xx.xxxx: I/O error

  • How to find higest bitrate in mp4 file and extract jpg ?

    10 octobre 2018, par Igor Petev

    I im using ffmpeg and have mp4 file that is in size around 50MB and duration 2m7sec.I need to write batch script for windows that will read whole mp4 file find position in seconds where higest bitrate is there and extract jpg image from that position.

    For example, i have mp4 trailer file that i would like to extract cover, using above script where i define time to extract jpg i get on some mp4 trailers black screen...so using above idea to find higet bitrate for shure will not be black screen, will be picture of some scene.

    Here is windows batch code that extract jpg dfrom mp4 using user defined time :

    @ECHO OFF
    
SET oldName=
    
SET newName=
    

    
FOR %%A IN (*.mp4) DO (
    
SET oldName=%%A
    
SET newName=%%A
    
CALL :MAKEJPG
    
)
    

    
:MAKEJPG
    
SET newName=%newName:mp4=jpg%
    
IF NOT EXIST %newName% (
    
START /B /WAIT D:\www\ffmpeg.exe -i "%oldName%" -ss 00:00:17.30 -vcodec mjpeg -vframes 1 -f image2 "%newName%"
    
EXIT
    
)

  • ffmpeg installation : pkg-config can't find package (using Homebrew)

    21 septembre 2018, par Rico Picone

    I’m trying to install ffmpeg with Homebrew using the command

    brew install ffmpeg --with-freetype

    but get

    ERROR: freetype2 not found using pkg-config

    If I check /usr/local/lib/pkgconfig, the file freetype2.pc exists. In fact,

    pkg-config --list-all

    includes freetype2.

    I’ve tried reinstalling pkg-config and freetype with Homebrew, reinstalling git, updating Homebrew, upgrading Homebrew, uninstalling and reinstalling all Homebrew packages, etc.

    brew doctor gives mostly a bunch of warnings about dylibs, config scripts, and header files, probably from recently moving to a new machine and copying files. I thought the config scripts might be related, but they’re all pyenv shims.

    I’m ok with a nuclear fix, but I feel like I’ve tried every nuclear option I know other than creating an entirely new user account.

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