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Autres articles (67)

  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

  • Ajouter notes et légendes aux images

    7 février 2011, par

    Pour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
    Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
    Modification lors de l’ajout d’un média
    Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...)

  • Le profil des utilisateurs

    12 avril 2011, par

    Chaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
    L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)

Sur d’autres sites (7102)

  • Announcement : Piwik to focus on Reliability, Performance and Security

    7 octobre 2014, par Matthieu Aubry — About, Community

    To our valued team and community,

    Well, we have moved fast and achieved so much during the past few months. Relentlessly releasing major version after major version… We got a lot done including several major new features !

    The speed of adding new features was a great showcase of how agile our small teams and the larger community are. And I’m so proud to see automated testing becoming common practice among everyone hacking on Piwik !

    For the next few months until the new year we will focus on making what we have better. We will fix those rare but longstanding critical bugs, and aim to solve all Major issues and other must-have performance and general improvements. The core team and Piwik PRO will have the vision of making the existing Piwik and all plugins very stable and risk free. This includes edge cases, general bugs but also specific performance issues for high traffic or issues with edge case data payloads.

    We’ll be more pro-active and take Piwik platform to the next level of Performance, Security, Privacy & Reliability ! We will prove to the world that Free/Libre Web software can be of the highest standard of quality. By focusing on quality we will make Piwik even easier to maintain and improve in the future. We are building the best open platform that will let every user liberate their data and keep full control of it.

    If you have any feedback or questions get in touch or let’s continue the discussion in the forum.

    Thank you for your trust and for liberating your data with Piwik,

    Matthieu Aubry
    Piwik founder

    More information

    This is an amazing testament of the power of free/libre software and yet we think this is just the beginning. We hope more developers will join and contribute to the Piwik project !

  • Announcement : Piwik to focus on Reliability, Performance and Security

    7 octobre 2014, par Matthieu Aubry — About, Community

    To our valued team and community,

    Well, we have moved fast and achieved so much during the past few months. Relentlessly releasing major version after major version… We got a lot done including several major new features !

    The speed of adding new features was a great showcase of how agile our small teams and the larger community are. And I’m so proud to see automated testing becoming common practice among everyone hacking on Piwik !

    For the next few months until the new year we will focus on making what we have better. We will fix those rare but longstanding critical bugs, and aim to solve all Major issues and other must-have performance and general improvements. The core team and Piwik PRO will have the vision of making the existing Piwik and all plugins very stable and risk free. This includes edge cases, general bugs but also specific performance issues for high traffic or issues with edge case data payloads.

    We’ll be more pro-active and take Piwik platform to the next level of Performance, Security, Privacy & Reliability ! We will prove to the world that Free/Libre Web software can be of the highest standard of quality. By focusing on quality we will make Piwik even easier to maintain and improve in the future. We are building the best open platform that will let every user liberate their data and keep full control of it.

    If you have any feedback or questions get in touch or let’s continue the discussion in the forum.

    Thank you for your trust and for liberating your data with Piwik,

    Matthieu Aubry
    Piwik founder

    More information

    This is an amazing testament of the power of free/libre software and yet we think this is just the beginning. We hope more developers will join and contribute to the Piwik project !

  • AAC : Fix M/S stereo encoding

    3 mars 2015, par Claudio Freire
    AAC : Fix M/S stereo encoding

    This patch fixes a pointer arithmetic bug in adjust_frame_information that resulted in heavily corrupted audio when using M/S encoding. Also, a backup copy of untransformed coefficients has to be kept around or attempts at re-processing the frame (which happens when hevavily overspending bits during transients) will result in re-encoding of the coefficients and subsequent corruption of the resulting stream.
    

    A/B testing shows the bug as corrected, but still cannot prove that M/S coding is a win at least in numbers. Limited listening tests do show improvement on M/S encoded samples in lower bitrates, but they’re hidden among the other artifacts that remain to be corrected in the encoder.
    

    Some of the regressions flagged in the report do show poor stereo image (but not buggy), so M/S encoding is clearly not good enough yet to be defaulted to auto.
    

    In numbers, Patched against Unpatched, stereo_mode auto :
    

      Files : 114
    
  Bitrates : 6
    
  Tests : 683
    

      Serious Regressions : 0 (0%)
    
  Regressions : 0 (0%)
    
  Improvements : 227 (33%)
    
  Big improvements : 92 (13%)
    
  Worst regression - mybloodrusts.wv - 256k
    
    - StdDev : 28.61       pSNR : -0.43     maxdiff : 1372.00
    
  Best improvement - 60.wv - 384k
    
    - StdDev : -369.57     pSNR : 45.02     maxdiff : -13322.00
    
  Average          - StdDev : -80.56       pSNR : 2.49      maxdiff : -8858.00
    

    Patched against Unpatched stereo_mode ms_off shows no difference.
    

    Patched stereo_mode auto vs Unpatched stereo_mode ms_off shows a small average improvement, just not too significant :
    

      Serious Regressions : 0 (0%)
    
  Regressions : 10 (1%)
    
  Improvements : 45 (6%)
    
  Big improvements : 2 (0%)
    
  Worst regression - Illinois.wv - 256k
    
    - StdDev : 33.20       pSNR : -2.03     maxdiff : 477.00
    
  Best improvement - song_of_circomstances.flac - 384k
    
    - StdDev : -3.97       pSNR : 7.61      maxdiff : -826.00
    
  Average          - StdDev : -10.25       pSNR : 0.20      maxdiff : -281.00
    

    Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
    • [DH] libavcodec/aac.h
    • [DH] libavcodec/aaccoder.c
    • [DH] libavcodec/aacenc.c

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