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• swresample/rematrix : treat 22.2 as 5.1 (back) when mixing

  1er août 2020, par Jan Ekström

  swresample/rematrix : treat 22.2 as 5.1 (back) when mixing
  Only this sub-set of channels actually follows the bit mask order
  
  in the official 22.2 channel mapping. Additionally, the 5.1 channels
  
  are there for backwards compatibility with the previous system.
  This enables the utilization of 22.2 content until a proper down/up
  
  matrix is added into swresample.
  

  • [DH] libswresample/rematrix.c

• Cloaked Archive Wiki

  16 mai 2011, par Multimedia Mike — General

  Google’s Chrome browser has made me phenomenally lazy. I don’t even attempt to type proper, complete URLs into the address bar anymore. I just type something vaguely related to the address and let the search engine take over. I saw something weird when I used this method to visit Archive Team’s site :

  
  
  

  There’s greater detail when you elect to view more results from the site :

  
  
  

  As the administrator of a MediaWiki installation like the one that archiveteam.org runs on, I was a little worried that they might have a spam problem. However, clicking through to any of those out-of-place pages does not indicate anything related to pharmaceuticals. Viewing source also reveals nothing amiss.

  I quickly deduced that this is a textbook example of website cloaking. This is when a website reports different content to a search engine than it reports to normal web browsers (humans, presumably). General pseudocode :

  PLAIN TEXT

  C :

  1. if (web_request.user_agent_string == CRAWLER_USER_AGENT)
  2.  return cloaked_data ;
  3. else
  4.  return real_data ;

  You can verify this for yourself using the wget command line utility :

  <br />
$ wget --quiet --user-agent="<strong>Mozilla/5.0</strong>" \<br />
 http://www.archiveteam.org/index.php?title=Geocities -O - | grep \&lt;title\&gt;<br />
&lt;title&gt;GeoCities - Archiveteam&lt;/title&gt;

  $ wget —quiet —user-agent="Googlebot/2.1"
  http://www.archiveteam.org/index.php?title=Geocities -O - | grep \<title\>
  <title>Cheap xanax | Online Drug Store, Big Discounts</title>
  

  I guess the little web prank worked because the phaux-pharma stuff got indexed. It makes we wonder if there’s a MediaWiki plugin that does this automatically.

  For extra fun, here’s a site called the CloakingDetector which purports to be able to detect whether a page employs cloaking. This is just one humble observer’s opinion, but I don’t think the site works too well :
  
  

  
  
  

• Anomalie #4704 (En cours) : Par sinum tri le nombre par ordre alpha

  25 mars 2021, par Maïeul Rouquette

  Soit un site avec deux articles.

  - 20. Doublon
  - 3. Article 3

  Soit le squelette suivant

  <span class="CodeRay">par sinum titre
  
  <span class="tag">span><span class="error">(</span><span class="attribute-name">ARTICLES</span><span class="error">)</span> <span class="error">{</span><span class="attribute-name">par</span> <span class="attribute-name">sinum</span> <span class="attribute-name">titre</span><span class="error">,</span> <span class="attribute-name">titre</span><span class="error">}</span><span class="tag">></span>
  
  <span class="tag"></span>#TITRE*<span class="tag"></span>
  
  <span class="tag"></span>
  
  
  
  Par num titre
  
  <span class="tag">span><span class="error">(</span><span class="attribute-name">ARTICLES</span><span class="error">)</span> <span class="error">{</span><span class="attribute-name">par</span> <span class="attribute-name">num</span> <span class="attribute-name">titre</span><span class="error">}</span><span class="tag">></span>
  
  <span class="tag"></span>#TITRE*<span class="tag"></span>
  
  <span class="tag"></span>
  
  
  
  </span></span></span>

  Le resultat est le suivant

  par sinum titre
  20. Doublon
  3. Article 3
  Par num titre
  3. Article 3
  20. Doublon

  Visiblement, contrairement à par num, par sinum ne tient pas compte du fait que 20 > 3.