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• Documentation #3972 (En cours) : template variants and possible bug ?

  5 juillet 2017, par Kamran Mir Hazar

  Hello,
  The following template variants do not work for me :
  I have section number 101, with articles in fa and en languages in it.
  I have also files article.html for the main site’s language which is fa, and article.en.html for the en language articles. Both work fine in general. I created two other variants to apply articles in section 101 with two separate languages. They are : article=101.fa.html and article=101.en.html .
  SPIP ignores these two variants and proceeds article.html for fa language articles, and article.en.html for en language articles in section 101, like the other sections. I added also article=101.html to see if it works, but didn’t.
  I asked this in French and English mailing lists, but couldn’t find any solution.
  Thank you
  Kamran

  PS : I tried based of the following article :
  https://www.spip.net/en_article4363.html

• How create video from image and sound (ffmpeg)

  29 novembre 2019, par sibbasa

  I need to make a video out of images and music. I use this code :

  Process process = new Process();
  
  ProcessStartInfo start = new ProcessStartInfo();
  
  start.FileName = @"d:\test\ffmpeg.exe";
  
  string argumets = String.Format("-r 6/1 -i d:\\test\\img\\img%d.jpg -i 
  
  d:\\test\\outfiles\\29112019111455.wav -c:v libx264 -c:a aac -b:a 192k -pix_fmt yuv420p -shortest 
  
  d:\\test\\outfiles\\out.mp4");
  
  Console.WriteLine(argumets);
  
  start.Arguments = argumets;
  
  start.WindowStyle = ProcessWindowStyle.Minimized;
  
  process = Process.Start(start);
  
  process.WaitForExit();
  
  process.Refresh();

  But the video is longer than the audio track.
  If the audio track is 60 seconds and there are 6 images, then each image should last 10 seconds.

  Sorry for my English.

• How can I encode a video in a MP4 container using OpenCV 2.4.10 ? (Win 8.1)

  24 juin 2015, par Angie Quijano

  I have been trying to encode a vector that contains images, in a MP4 video. I have tried to use a lot of FOURCC codecs for this purpose, but I have not been successful.
  I have achieved to encode my vector in a AVI video using as CV_FOURCC code this : CV_FOURCC(’X’,’V’,’I’,’D’), but I really need to obtain a MP4 video. I have tried the following FOURCC codes : MP4S, MP4V, XVID, DVIX, X264, H264, FMP4, and others than I can’t remember.

  My line of code is :

  VideoWriter(videoName, CV_FOURCC('X','2','6','4'), fps, outputSize)
  
  where videoName = "OutputVideo.mp4", fps = 47, outputSize = [4225x2030].

  I checked if I built my OpenCV with Ffmpeg support and I got this :

   Video I/O:
  
     Video for Windows:           YES
  
     DC1394 1.x:                  NO
  
     DC1394 2.x:                  NO
  
     FFMPEG:                      YES (prebuilt binaries)
  
       codec:                     YES (ver 55.18.102)
  
       format:                    YES (ver 55.12.100)
  
       util:                      YES (ver 52.38.100)
  
       swscale:                   YES (ver 2.3.100)
  
       gentoo-style:              YES
  
     OpenNI:                      NO
  
     OpenNI PrimeSensor Modules:  NO
  
     PvAPI:                       NO
  
     GigEVisionSDK:               NO
  
     DirectShow:                  YES
  
     Media Foundation:            NO
  
     XIMEA:                       NO
  
     Intel PerC:                  NO

  I don’t know what I’m doing wrong. Can anyone help me, please ?

  Sorry for my english.