Recherche avancée

Médias (1)

Mot : - Tags -/Rennes

Autres articles (89)

  • Mediabox : ouvrir les images dans l’espace maximal pour l’utilisateur

    8 février 2011, par

    La visualisation des images est restreinte par la largeur accordée par le design du site (dépendant du thème utilisé). Elles sont donc visibles sous un format réduit. Afin de profiter de l’ensemble de la place disponible sur l’écran de l’utilisateur, il est possible d’ajouter une fonctionnalité d’affichage de l’image dans une boite multimedia apparaissant au dessus du reste du contenu.
    Pour ce faire il est nécessaire d’installer le plugin "Mediabox".
    Configuration de la boite multimédia
    Dès (...)

  • 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

  • Automated installation script of MediaSPIP

    25 avril 2011, par

    To overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
    You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
    The documentation of the use of this installation script is available here.
    The code of this (...)

Sur d’autres sites (8901)

  • Issue creating video with FFmpeg from Gource output

    16 avril 2013, par user1832408

    I'm trying to create a video with FFmpeg from Gource output but FFmpeg fails for some reason. I have no idea why as the error message is quite general. Does anyone have any ideas ? Is the Gource output perhaps invalid ?

    set GOURCE=C:\Program Files\Gource\0.39
    
set FFMPEG=C:\Program Files\FFmpeg\20130412-git-694fa00-win32-static\bin
    
set SOURCE=src
    

    
"%GOURCE%\gource.exe" -1280x720 -o gource.ppm %SOURCE%
    
"%FFMPEG%\ffmpeg.exe" -y -r 60 -f image2pipe -vcodec ppm -i gource.ppm -vcodec libx264 -preset ultrafast -crf 1 -threads 0 -bf 0 -v verbose gource.x264.avi

    FFmpeg output

    ffmpeg version N-52045-g694fa00 Copyright (c) 2000-2013 the FFmpeg developers
  built on Apr 12 2013 16:54:51 with gcc 4.8.0 (GCC)
  configuration : —enable-gpl —enable-version3 —disable-w32threads —enable-avisynth —enable-bzlib —enable-fontconfig —enable-frei0r —enable-gnutls —enable-iconv —enable-libass —enable-libbluray —enable-libcaca —enable-libfreetype —enable-libgsm —enable-libilbc —enable-libmp3lame —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-libopenjpeg —enable-libopus —enable-librtmp —enable-libschroedinger —enable-libsoxr —enable-libspeex —enable-libtheora —enable-libtwolame —enable-libvo-aacenc —enable-libvo-amrwbenc —enable-libvorbis —enable-libvpx —enable-libx264 —enable-libxavs —enable-libxvid —enable-zlib
  libavutil      52. 26.100 / 52. 26.100
  libavcodec     55.  2.100 / 55.  2.100
  libavformat    55.  2.100 / 55.  2.100
  libavdevice    55.  0.100 / 55.  0.100
  libavfilter     3. 53.101 /  3. 53.101
  libswscale      2.  2.100 /  2.  2.100
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  3.100 / 52.  3.100
[image2pipe @ 003bade0] Stream #0 : not enough frames to estimate rate ; consider increasing probesize
Input #0, image2pipe, from 'gource.ppm' :
  Duration : N/A, bitrate : N/A
    Stream #0:0 : Video : ppm, rgb24, 1280x720, 60 tbr, 60 tbn, 60 tbc
[graph 0 input from stream 0:0 @ 003bbb60] w:1280 h:720 pixfmt:rgb24 tb:1/60 fr:60/1 sar:0/1 sws_param:flags=2
[auto-inserted scaler 0 @ 003bbaa0] w:0 h:0 flags :'0x4' interl:0
[format @ 003bb4e0] auto-inserting filter 'auto-inserted scaler 0' between the filter 'Parsed_null_0' and the filter 'format'
[graph 0 input from stream 0:0 @ 003bbb60] TB:0.016667 FRAME_RATE:60.000000 SAMPLE_RATE:nan
[auto-inserted scaler 0 @ 003bbaa0] w:1280 h:720 fmt:rgb24 sar:0/1 -> w:1280 h:720 fmt:yuv444p sar:0/1 flags:0x4
No pixel format specified, yuv444p for H.264 encoding chosen.
Use -pix_fmt yuv420p for compatibility with outdated media players.
[libx264 @ 003bc980] using cpu capabilities : MMX2 SSE2Fast LZCNT
[libx264 @ 003bc980] profile High 4:4:4 Predictive, level 3.2, 4:4:4 8-bit
Output #0, avi, to 'gource.x264.avi' :
  Metadata :
    ISFT : Lavf55.2.100
    Stream #0:0 : Video : h264 (H264 / 0x34363248), yuv444p, 1280x720, q=-1—1, 60 tbn, 60 tbc
Stream mapping :
  Stream #0:0 -> #0:0 (ppm -> libx264)
Press [q] to stop, [?] for help
frame=   17 fps=0.0 q=0.0 size=      43kB time=00:00:00.21 bitrate=1614.1kbits/s    
frame=   33 fps= 32 q=0.0 size=     164kB time=00:00:00.48 bitrate=2777.5kbits/s    
frame=   48 fps= 31 q=0.0 size=     277kB time=00:00:00.73 bitrate=3093.0kbits/s    
gource.ppm : Input/output error
No more output streams to write to, finishing.
frame=   48 fps= 30 q=2358879.0 Lsize=     324kB time=00:00:00.80 bitrate=3313.9kbits/s

    video:317kB audio:0kB subtitle:0 global headers:0kB muxing overhead 2.112279%
    
[libx264 @ 003bc980] frame I:1     Avg QP : 0.00  size : 10560
    
[libx264 @ 003bc980] frame P:47    Avg QP : 0.00  size :  6680
    
[libx264 @ 003bc980] mb I  I16..4 : 100.0%  0.0%  0.0%
    
[libx264 @ 003bc980] mb P  I16..4 :  0.5%  0.0%  0.0%  P16..4 :  1.9%  0.0%  0.0%  0.0%  0.0%    skip:97.5%
    
[libx264 @ 003bc980] coded y,u,v intra : 3.7% 1.1% 1.2% inter : 1.4% 0.5% 0.6%
    
[libx264 @ 003bc980] i16 v,h,dc,p : 93%  4%  2%  0%
    
[libx264 @ 003bc980] kb/s:3245.31

  • Creating MOV from PNGs with ffmpeg : playback issue in older quicktime (7.6.6)

    15 avril 2013, par Jim Lindstrom

    I'm using ffmpeg to create a MOV file from a series of images. When I view the movie in Quicktime 7.7.x, it looks great (left image). When I view in Quicktime 7.6.6 I get this weird issue (on the right) :

    In Quicktime 7.7.x
    In Quicktime 7.6.6

    Any idea even what this is, much less how to fix it ?

    Details

    My source images are a mix of PNGs and JPGs that I pre-process with ImageMagick (to draw text, captions, etc). I store intermediate results as MPCs, and final frames as PNMs.

    To draw the above frame, I'm doing this :

    convert -background none -fill white -font my_font.ttf -pointsize 132 -gravity \
    
        center -size 945x550 caption:"Stills Demo" background-template.png     \
    
        +swap -composite -resize 1920x1080! /tmp/title_screen4338355.png
    
convert -auto-orient /tmp/title_screen4338355.png -resize 100% -type TrueColor \
    
        /tmp/1b2764754ce6e420986ed74b942bcf67.mpc
    
convert /tmp/1b2764754ce6e420986ed74b942bcf67.mpc -set option:distort:viewport \
    
        1920x1080+0+0  +distort SRT '960.0,540.0 1.0 0 960.0,540.0'            \
    
        /tmp/stills-project-6224/video_frames/img_0000.pnm

    I render frames with ffmpeg like so :

    ffmpeg -y -f image2 -i /tmp/stills-project-6224/video_frames/img_%04d.pnm      \
    
       -i /tmp/soundtrack_8702693.wav -vcodec libx264 -pix_fmt yuvj444p        \
    
       -b:v 2200k  -r 25 -strict experimental                                  \
    
       /tmp/stills-project-6224/video_rendered/output.mov

    The rest of the video is fine. The other images are photos (jpgs or pngs) that I process in the same way. I have also noticed that if I don't apply text to this background-template, the image shows up fine, so I think the issue has something to do with either how I'm processing or saving that image.

  • Aforge FFMpeg DLL Location Issue

    4 novembre 2013, par Sam35

    I'm using AForge FFMPEG libraries for video compression in .Net.Currently I've put the ffmpeg & Aforge libraries in the location which the application(.exe) exists.

    I need to put these libraries in a common place.i've tried to put these libraries inside system32 folder. It is not working.

    Is there any ways to put the Aforge & FFMpeg Libraries in a common place other than application(.exe) directory ?

Navigation