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  • Contribute to a better visual interface

    13 avril 2011

    MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
    Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.

  • Les notifications de la ferme

    1er décembre 2010, par

    Afin d’assurer une gestion correcte de la ferme, il est nécessaire de notifier plusieurs choses lors d’actions spécifiques à la fois à l’utilisateur mais également à l’ensemble des administrateurs de la ferme.
    Les notifications de changement de statut
    Lors d’un changement de statut d’une instance, l’ensemble des administrateurs de la ferme doivent être notifiés de cette modification ainsi que l’utilisateur administrateur de l’instance.
    À la demande d’un canal
    Passage au statut "publie"
    Passage au (...)

  • Changer son thème graphique

    22 février 2011, par

    Le thème graphique ne touche pas à la disposition à proprement dite des éléments dans la page. Il ne fait que modifier l’apparence des éléments.
    Le placement peut être modifié effectivement, mais cette modification n’est que visuelle et non pas au niveau de la représentation sémantique de la page.
    Modifier le thème graphique utilisé
    Pour modifier le thème graphique utilisé, il est nécessaire que le plugin zen-garden soit activé sur le site.
    Il suffit ensuite de se rendre dans l’espace de configuration du (...)

Sur d’autres sites (6475)

  • merge multiple videos and images dynamically using ffmpeg [duplicate]

    16 avril 2018, par robert tamunoemi

    This question already has an answer here :

    I am trying to merge several images and videos together. When there is more than one video, the audio of the next video is lost. Here is my command :

    $filter = "[0][1][2][3][4]concat=n=5:v=1:a=0,scale=320:240";
    

    
$cmd = 'ffmpeg -y  -i videos/video__152344425320.mp4  -loop 1 -framerate 24 -t 10 -i images/4_152222487376001.png -i videos/video__152344425320.mp4 -loop 1 -framerate 24 -t 10 -i images/4_152222487376002.png -loop 1 -framerate 24 -t 10 -i images/4_152222487376003.png -filter_complex '.$filter.' out.mp4'; 
    
shell_exec($cmd.' 2> log.txt');

    This works but when I set concat=n=5:v=2:a=1, I get this error :

    ffmpeg version N-89674-g57d0c24132 Copyright (c) 2000-2018 the FFmpeg developers
    
  built with gcc 7.2.0 (GCC)
    
  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-amf --enable-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-libmfx
    
  libavutil      56.  7.100 / 56.  7.100
    
  libavcodec     58.  9.100 / 58.  9.100
    
  libavformat    58.  3.100 / 58.  3.100
    
  libavdevice    58.  0.100 / 58.  0.100
    
  libavfilter     7.  8.100 /  7.  8.100
    
  libswscale      5.  0.101 /  5.  0.101
    
  libswresample   3.  0.101 /  3.  0.101
    
  libpostproc    55.  0.100 / 55.  0.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'videos/video__152344425320.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: isommp42
    
    creation_time   : 2017-12-10T04:51:23.000000Z
    
  Duration: 00:02:48.62, start: 0.000000, bitrate: 77 kb/s
    
    Stream #0:0(und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 176x144 [SAR 1:1 DAR 11:9], 51 kb/s, 10.01 fps, 9.99 tbr, 15984 tbn, 999 tbc (default)
    
    Metadata:
    
      creation_time   : 2017-12-10T04:51:23.000000Z
    
      handler_name    : IsoMedia File Produced by Google, 5-11-2011
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 22050 Hz, mono, fltp, 24 kb/s (default)
    
    Metadata:
    
      creation_time   : 2017-12-10T04:51:24.000000Z
    
      handler_name    : IsoMedia File Produced by Google, 5-11-2011
    
Input #1, png_pipe, from 'images/4_152222487376001.png':
    
  Duration: N/A, bitrate: N/A
    
    Stream #1:0: Video: png, rgba(pc), 176x144 [SAR 3780:3780 DAR 11:9], 24 fps, 24 tbr, 24 tbn, 24 tbc
    
Input #2, mov,mp4,m4a,3gp,3g2,mj2, from 'videos/video__152344425320.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: isommp42
    
    creation_time   : 2017-12-10T04:51:23.000000Z
    
  Duration: 00:02:48.62, start: 0.000000, bitrate: 77 kb/s
    
    Stream #2:0(und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 176x144 [SAR 1:1 DAR 11:9], 51 kb/s, 10.01 fps, 9.99 tbr, 15984 tbn, 999 tbc (default)
    
    Metadata:
    
      creation_time   : 2017-12-10T04:51:23.000000Z
    
      handler_name    : IsoMedia File Produced by Google, 5-11-2011
    
    Stream #2:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 22050 Hz, mono, fltp, 24 kb/s (default)
    
    Metadata:
    
      creation_time   : 2017-12-10T04:51:24.000000Z
    
      handler_name    : IsoMedia File Produced by Google, 5-11-2011
    
Input #3, png_pipe, from 'images/4_152222487376002.png':
    
  Duration: N/A, bitrate: N/A
    
    Stream #3:0: Video: png, rgba(pc), 176x144 [SAR 3780:3780 DAR 11:9], 24 fps, 24 tbr, 24 tbn, 24 tbc
    
Input #4, png_pipe, from 'images/4_152222487376003.png':
    
  Duration: N/A, bitrate: N/A
    
    Stream #4:0: Video: png, rgba(pc), 176x144 [SAR 3780:3780 DAR 11:9], 24 fps, 24 tbr, 24 tbn, 24 tbc
    
[AVFilterGraph @ 00000000030fe580] Too many inputs specified for the "scale" filter.
    
Error initializing complex filters.
    
Invalid argument

  • Handling high volume traffic and traffic peaks with Matomo just got easier

    16 avril 2018, par Matomo Core Team

    When you use the self-hosted version of Matomo on-premise instead of the Matomo cloud-hosted solution, you may experience some traffic peaks on your Matomo server when the traffic volume on your websites increases. For example, every day at a certain time you might receive two or three times the amount of traffic that usually visits your website. This can have many negative impacts, including :

    • Slow loading time for your JavaScript tracker (piwik.js) which in turn may slow down your website giving your users a poor experience. Also you may see less page views in Matomo because by the time the tracker is loaded on your website, the user has already moved on to another page.
    • Some tracking requests might be simply ignored at some point because your server might not be able to handle any tracking requests anymore which results in many untracked visits and page views.
    • You may need additional servers only to handle traffic peaks which results in increased server costs, maintenance work and maintenance costs.

    The solution

    Handling traffic peaks has been possible with Matomo for years using the Queued Tracking plugin. When this feature is enabled, tracking requests are put into a queue instead of being processed immediately. Then when a job is running separately it takes the requests out of the queue and processes them. This brings various benefits.

    Faster tracking

    It improves the tracking speed on your server by a factor of 5 to 15. So for example, instead of a tracking request taking 50ms, it takes only 5ms. This means your server will be able to handle a lot more concurrent requests compared to the traditional tracking and is likely to survive traffics peaks much more likely without any trouble at all.

    Faster processing

    When a request is queued, the request still needs to be processed eventually. Because the Queued Tracking solution can take multiple tracking requests out of the queue at once and process them in one go, the processing speed increases massively as well. This is because by default each tracking request has to bootstrap Matomo and do a lot of things again and again which takes quite a bit of time (you’d be surprised). Instead, many things can now be cached and don’t have to be done multiple times. As a result, your server can process tracking requests much faster and needs less resources overall which in turn reduces cost and trouble.

    Queued Tracking is now easier to set up

    In the background, Queued Tracking has been using Redis, an in-memory database. While Redis is very fast, it’s not simple to setup and maintain it. Especially when it comes to making Redis “highly available” and when you need to scale your Redis. Also, your servers will need a lot more memory for Redis as all queued tracking requests are stored in memory.

    One click setup

    We have now added support for a MySQL database so you can activate Queued Tracking with a simple click. What used to take hours or maybe even weeks to set up and a lot of maintenance, can now be cut down to seconds. Queued Tracking will then simply reuse the database that you have been using all along for storing all your visits. A side benefit is that your server won’t need more memory and all queued tracking requests even survive a server reboot.

    Both Redis and MySQL are now supported in Queued Tracking. If you do have experience with managing Redis, we still recommend using this solution as it’s likely a bit faster. However, in most cases the MySQL solution should work just as well.

    Further improvements

    We have made various other improvements for Queued Tracking that increases the performance and you can now be notified when the number of queued tracking requests reaches a certain threshold. View the changelog for a list of all changes.

    Learn more

    We have been setting up Queued Tracking multiple times when it comes to high volume traffic or dealing with peaks and are amazed by the results. Often, we can even reduce the overall amount of needed servers.

    If this sounds like something that could be beneficial to you, we recommend you have a look at the Queued Tracking page and also check out the FAQ. You might be also interested in learning how to configure Matomo for speed.

    Need help with setting up, maintaining, or scaling Matomo ? Get in touch now.

    The post Handling high volume traffic and traffic peaks with Matomo just got easier appeared first on Analytics Platform - Matomo.

  • mov atom not found when merging images on debian 9

    27 avril 2018, par robert tamunoemi

    Am extracting images from videos which I use in creating slideshows. Creating slideshows from the extracted images only works fine.However, when I add an image from my computer to the sets of extracted images, I get this error

    ffmpeg version 3.2.10-1 deb9u1 Copyright (c) 2000-2018 the FFmpeg developers
  built with gcc 6.3.0 (Debian 6.3.0-18) 20170516
  configuration : —prefix=/usr —extra-version=’1 deb9u1’ —toolchain=hardened —libdir=/usr/lib/x86_64-linux-gnu —incdir=/usr/include/x86_64-linux-gnu —enable-gpl —disable-stripping —enable-avresample —enable-avisynth —enable-gnutls —enable-ladspa —enable-libass —enable-libbluray —enable-libbs2b —enable-libcaca —enable-libcdio —enable-libebur128 —enable-libflite —enable-libfontconfig —enable-libfreetype —enable-libfribidi —enable-libgme —enable-libgsm —enable-libmp3lame —enable-libopenjpeg —enable-libopenmpt —enable-libopus —enable-libpulse —enable-librubberband —enable-libshine —enable-libsnappy —enable-libsoxr —enable-libspeex —enable-libssh —enable-libtheora —enable-libtwolame —enable-libvorbis —enable-libvpx —enable-libwavpack —enable-libwebp —enable-libx265 —enable-libxvid —enable-libzmq —enable-libzvbi —enable-omx —enable-openal —enable-opengl —enable-sdl2 —enable-libdc1394 —enable-libiec61883 —enable-chromaprint —enable-frei0r —enable-libopencv —enable-libx264 —enable-shared
  libavutil      55. 34.101 / 55. 34.101
  libavcodec     57. 64.101 / 57. 64.101
  libavformat    57. 56.101 / 57. 56.101
  libavdevice    57.  1.100 / 57.  1.100
  libavfilter     6. 65.100 /  6. 65.100
  libavresample   3.  1.  0 /  3.  1.  0
  libswscale      4.  2.100 /  4.  2.100
  libswresample   2.  3.100 /  2.  3.100
  libpostproc    54.  1.100 / 54.  1.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x5605bcf0cee0] Format mov,mp4,m4a,3gp,3g2,mj2 detected only with low score of 1, misdetection possible !
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x5605bcf0cee0] moov atom not found
videos/152415280818.mp4 : Invalid data found when processing input

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