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• Anomalie #2167 : Spip 2.1.10 type_mot versus mots.id

  11 juillet 2011, par Michel Beauchamp

  Passage SPIP2010 vers SPIP 2.1.10 Origine : svn ://trac.rezo.net/spip/tags/spip-2.1.10 Revision : 17657 Dernier commit : 2011-04-06 21:47:41 +0200 Description On dit depuis 2.0 du critère titre_mot a propos des jointures : > Bon, mais là ou j’utilisais dans un modèle LISTARTICLES (...)

• System.Diagnostics.Process pipe (vertical bar) not accepted as argument

  15 avril 2014, par emp

  I'm trying to execute following code (source : http://geekswithblogs.net/PearlFactory/archive/2011/11/23/convert-mp3-to-aacflac-to-aac-or-any-other-combination.aspx) using System.Diagnostics.Process. It works fine in command line. But in C# it's failing on the | character.

  var myProcess = new Process();
  
          var p = new ProcessStartInfo();
  
          var sArgs = " -i emp.mp3 -f wav - | neroAacEnc -ignorelength -q 0.5 -if - -of emp.mp4";
  
          p.FileName = "ffmpeg.exe";
  
          p.CreateNoWindow = false;
  
          p.RedirectStandardOutput = false;
  
          p.UseShellExecute = false;
  
          p.Arguments = sArgs;
  
          myProcess.StartInfo = p;
  
          myProcess.Start();
  
          myProcess.WaitForExit();

  It gives the following error :

  Unable to find a suitable output format for '|' : Invalid argument

  I've looked around on stackoverflow and found the following hint but it is also not working :

  var psi = new ProcessStartInfo("ffmpeg.exe");
  
          psi.Arguments = "\"-i emp.mp3 -f wav -\" | \"neroAacEnc -ignorelength -q 0.5 -if - -of emp.mp4\"";
  
          psi.CreateNoWindow = false;
  
          psi.UseShellExecute = false;
  
          var process = new Process { StartInfo = psi };
  
          process.Start();
  
          process.WaitForExit();

  gives the following error :

  Unrecognized option 'i emp.mp3 -f wav -'
  Failed to set value '|' for option 'i emp.mp3 -f wav -'

• How to generate SDP file from FFMPEG

  29 octobre 2017, par MobilityLab

  So, I have been working with FFMPEG on a project that involves streaming video from one computer to another across the internet with RTP. I want to take that into ffmpeg and use ffserver to display it on a local network.

  As I understand it, you need to have a SDP information so that the receiving ffmpeg instance can interpret the RTP stream. Despite what webpages say, I can not find the SDP information in the information printed to the console.

  How can I force the transmitting ffmpeg instance to output the SDP information so that I can use it to configure my receiving end ?

  Right now, I am testing on Windows 7, but the final solution will be on linux.

  The command I’m running for testing is

  ffmpeg -fflags +genpts -i files\2005-SFSD-sample-mpeg1.mpg -threads 0 -r 10 -g 45
  
  -s 352x240 -deinterlace -y 2005.mp4 -an -threads 0 -r 10 -g 45 -s 352x240 
  
  -deinterlace -f rtp rtp://192.168.200.198:9008

  My ffmpeg information is...

  ffmpeg version 0.8, Copyright (c) 2000-2011 the FFmpeg developers built on Jun 23 2011 14:22:23 with gcc 4.5.3 
  
  configuration: 
  
  --disable-static  
  
  --enable-shared 
  
  --enable-gpl  
  
  --enable-version3 
  
  --enable-memalign-hack  
  
  --enable-runtime-cpudetect 
  
  --enable-avisynth 
  
  --enable-bzlib 
  
  --enable-frei0r 
  
  --enable-libopencore-amrnb 
  
  --enable-libopencore-amrwb 
  
  --enable-libfreetype 
  
  --enable-libgsm 
  
  --enable-libmp3lame 
  
  --enable-libopenjpeg 
  
  --enable-librtmp 
  
  --enable-libschroedinger 
  
  --enable-libspeex 
  
  --enable-libtheora 
  
  --enable-libvorbis 
  
  --enable-libvpx 
  
  --enable-libx264 
  
  --enable-libxavs 
  
  --enable-libxvid 
  
  --enable-zlib 
  
  --disable-outdev=sdl 
  
    libavutil    51.  9. 1 / 51.  9. 1 
  
    libavcodec   53.  7. 0 / 53.  7. 0 
  
    libavformat  53.  4. 0 / 53.  4. 0 
  
    libavdevice  53.  1. 1 / 53.  1. 1 
  
    libavfilter   2. 23. 0 /  2. 23. 0 
  
    libswscale    2.  0. 0 /  2.  0. 0 
  
    libpostproc  51.  2. 0 / 51.  2. 0