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    1er avril 2010, par

    Dans le cadre de la mise en place d’une plateforme ouverte, il est important pour les hébergeurs de pouvoir disposer de sauvegardes assez régulières pour parer à tout problème éventuel.
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  • Script d’installation automatique de MediaSPIP

    25 avril 2011, par

    Afin de palier aux difficultés d’installation dues principalement aux dépendances logicielles coté serveur, un script d’installation "tout en un" en bash a été créé afin de faciliter cette étape sur un serveur doté d’une distribution Linux compatible.
    Vous devez bénéficier d’un accès SSH à votre serveur et d’un compte "root" afin de l’utiliser, ce qui permettra d’installer les dépendances. Contactez votre hébergeur si vous ne disposez pas de cela.
    La documentation de l’utilisation du script d’installation (...)

  • 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.
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Sur d’autres sites (7720)

  • FFmpeg four audiochannels but the first two are static noise

    2 octobre 2014, par sebastian

    I have a handful of videos with one audio stream in which includes four audio channels. I am having trouble in getting the last two channels wherein lies the actual sound. I don’t want to create wave files or anything like that I just want to create a video out of it with the two channels correct channels (three and four). I was thinking about using the -map 0:a:2 and -map 0:a:3 but it does not work quite as well as I had hoped for. Does anyone know a better way or what I am doing wrong ?
    Any help would be appreciated.

    Audio
    
ID : 2
    
Format : PCM
    
Format settings, Endianness : Big
    
Format settings, Sign : Unsigned
    
Codec ID : lpcm
    
Duration : 3mn 54s
    
Bit rate mode : Constant
    
Bit rate : 6 144 Kbps
    
Channel(s) : 4 channels
    
Sampling rate : 48.0 KHz
    
Bit depth : 24 bits
    
Stream size : 172 MiB (3%)
    
Language : English
    
Encoded date : UTC 2014-09-25 16:54:09
    
Tagged date : UTC 2014-09-25 16:55:41

  • Invalid pixel aspect ratio in ffmpeg

    26 septembre 2014, par dudeofea

    I want to scale a video to a certain size using ffmpeg, but I get the following error :

    ffmpeg -i Ad_939.avi -vf scale=1000:64 test_ad.avi       
    
ffmpeg version 2.3.3 Copyright (c) 2000-2014 the FFmpeg developers
    
  built on Sep 26 2014 10:31:06 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
    
  configuration: 
    
  libavutil      52. 92.100 / 52. 92.100
    
  libavcodec     55. 69.100 / 55. 69.100
    
  libavformat    55. 48.100 / 55. 48.100
    
  libavdevice    55. 13.102 / 55. 13.102
    
  libavfilter     4. 11.100 /  4. 11.100
    
  libswscale      2.  6.100 /  2.  6.100
    
  libswresample   0. 19.100 /  0. 19.100
    
Input #0, avi, from 'Ad_939.avi':
    
  Metadata:
    
    encoder         : Lavf56.4.101
    
  Duration: 00:00:20.50, start: 0.000000, bitrate: 75 kb/s
    
    Stream #0:0: Video: wmv2 (WMV2 / 0x32564D57), yuv420p, 160x64, 68 kb/s, SAR 32:45 DAR 16:9, 24 fps, 24 tbr, 24 tbn, 24 tbc
    
[mpeg4 @ 0x2305cc0] Invalid pixel aspect ratio 128/1125, limit is 255/255 reducing
    
[mpeg4 @ 0x2305cc0] too many threads/slices (5), reducing to 4
    
Output #0, avi, to 'test_ad.avi':
    
  Metadata:
    
    ISFT            : Lavf55.48.100
    
    Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 1000x64 [SAR 19:167 DAR 2375:1336], q=2-31, 200 kb/s, SAR 128:1125 DAR 16:9, 24 fps, 24 tbn, 24 tbc
    
    Metadata:
    
      encoder         : Lavc55.69.100 mpeg4
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (wmv2 (native) -> mpeg4 (native))
    
Press [q] to stop, [?] for help
    
frame=  228 fps=0.0 q=2.0 size=     222kB time=00:00:09.50 bitrate= 191.6kbits/s
    
frame=  468 fps=467 q=2.0 size=     435kB time=00:00:19.50 bitrate= 182.8kbits/s
    
frame=  492 fps=456 q=2.0 Lsize=     458kB time=00:00:20.50 bitrate= 183.1kbits/s    
    
video:441kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 3.981523%

    I’ve read around and it seems this was a past bug but that was 3 years ago. I’ve tried running this command with version 2.4.1, 2.3.3, 2.4.git (compiled from source Sept 16, 2014), and N-40951-g1ea7a3e (Newest static build) and they all fail.

    EDIT : When I say fail I mean that the video is not playing at the proper resolution. The file’s properties say that it is 1000x64 but VLC plays (as well as my website using a <video></video> tag) it with the original aspect ratio with the new width which is not what I want. I want a crunched up video the same size no matter what.

    Is there something I’m missing ?

  • ffmpeg Error while opening decoder for input stream #0:0 : Resource temporarily unavailable [migrated]

    24 septembre 2014, par Fanzaholic Bean

    I want to convert png images into mp4, this my ffmpeg code :

    /usr/local/vencode/bin/ffmpeg -y -framerate 1/5 -i      /home/fanzaholic/public_html/lab/server/script/1411400997_open_%03d.png -c:v libx264 -r 30 -pix_fmt yuv420p /home/fanzaholic/public_html/lab/server/script/test.mp4 2>&amp;1

    This is output from that code :

    ffmpeg version 2.2.1 Copyright (c) 2000-2014 the FFmpeg developers
    
  built on Apr 13 2014 13:00:18 with gcc 4.4.6 (GCC) 20120305 (Red Hat 4.4.6-4)
    
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --enable-shared --enable-runtime-cpudetect --enable-gpl --enable-version3 --enable-postproc --enable-avfilter --enable-pthreads --enable-x11grab --enable-vdpau --disable-avisynth --enable-frei0r --enable-libopencv --enable-libdc1394 --enable-libgsm --enable-libmp3lame --enable-libnut --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC' --disable-stripping
    
  libavutil      52. 66.100 / 52. 66.100
    
  libavcodec     55. 52.102 / 55. 52.102
    
  libavformat    55. 33.100 / 55. 33.100
    
  libavdevice    55. 10.100 / 55. 10.100
    
  libavfilter     4.  2.100 /  4.  2.100
    
  libswscale      2.  5.102 /  2.  5.102
    
  libswresample   0. 18.100 /  0. 18.100
    
  libpostproc    52.  3.100 / 52.  3.100
    
Input #0, image2, from '/home/fanzaholic/public_html/lab/server/script/1411400997_open_%03d.png':
    
  Duration: 00:00:10.00, start: 0.000000, bitrate: N/A
    
    Stream #0:0: Video: png, rgb24, 896x504, 0.20 tbr, 0.20 tbn, 0.20 tbc
    
[libx264 @ 0x1341860] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    
[libx264 @ 0x1341860] profile High, level 3.1
    
[libx264 @ 0x1341860] 264 - core 142 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=36 lookahead_threads=3 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    
Output #0, mp4, to '/home/fanzaholic/public_html/lab/server/script/test.mp4':
    
    Stream #0:0: Video: h264, yuv420p, 896x504, q=-1--1, 90k tbn, 30 tbc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (png -> libx264)
    
Error while opening decoder for input stream #0:0 : Resource temporarily unavailable

    the mp4 file was created but with 0 bytes size

    Any help for me ?

    thanks

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