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• How to chop/chunk videos using any AWS service ?

  14 mai 2021, par Jones Kumar

  I want to chop a huge number of videos ( 50k) into 1 min segments each.

  


  Eg - A video with 60 min duration will be chopped into 60 mp4 files i.e 1m/video

  


  I looked into media convert service but it's has not the option to do.

  


  What is the scalable solution do it ?

  


  P.S currently I am using EC2 , ffmpeg to do this job, its very slow.

  


• (FFMPEG Error)Real-time buffer [USB cam's name] too full or near too full

  9 juin 2020, par ZzangWoo

  I am doing project about making rtsp stream of my USB Camera.
And my project environment is 
- OS : windows server 2019
- CPU : AMD Ryzen 7 3700X
- RAM : 64GB
- GPU : NVIDIA GeForce RTX 2070 SUPER

  



  My project goal is to detect object with YOLO and show original cam video, detected video to client. So I need to change my USB Camera to RTSP Stream. But I had an error below picture.
enter image description here

  



  And this is my command line.

  



  ffmpeg -re -f dshow -i video="JOYTRON HD20" -pix_fmt yuv420p -vsync 1 -threads 0 -vcodec libx264 -r 30 -g 60 -sc_threshold 0 -b:v 640k -bufsize 768k -maxrate 800k -preset veryfast -profile:v baseline -tune film -acodec aac -b:a 128k -ac 2 -ar 48000 -f rtsp rtsp ://localhost:8888/test

  



  I saw an answer that the problem is bandwidth. So I added parameter. It didnt help.

  



  I also added the -rtbufsize parameter and -thread_queue_size parameter. But it didnt help anything.

  



  What should I do ??

  


• 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 :