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• ffmpeg Video concat demuxer txt path

  19 avril 2013, par Steven Mills

  I'm making use of the ffmpeg command line process, specifically the demuxer (see here).

  I'm attempting to run the equivelent of this :

  ffmpeg -f concat -i C:\Users\Username\AppData\Local\mylist.txt -c copy output.avi

  I've tried it and it works fine in the console, however I can't figure out a way to get this to work through code. I've checked the path is right, I've checked the txt file is named correctly etc.

  ffmpeg.StartInfo.Arguments = "-f concat -y -i " + @"C:\Users\Username\AppData\Local\Temp\mylist.txt" + " -c copy output.avi";
  
  ffmpeg.StartInfo.FileName = "ffmpeg.exe";

  For the path I've tried with/without the @ before the path, I've tried \ and / instead of \, I've tried using System.IO.Path methods, but none of it seems to work. It always returns an error saying "file not found", and through debugging I can see that ffmpeg.StartInfo.Arguments always ends up having \ between folders, so I'm guessing that might be the issue.

  Does anyone have a clue how I'd go about circumventing this particular issue ?

• Building an android application using ant in eclipse - halfninja /jhotovy ffmpeg for android project

  1er août 2012, par user1545779

  I have successfully built the shared objects in halfninja's android-ffmpeg-x264 git project.
  That project uses ant. Could anyone who has built that project successfully help with the steps he/she used in the second part to build the final apk or
  Could anybody with experience building android applications using ant either as an plugin in Eclipse or as a standalone tool help here
  
  I loaded both the ProjectTest and Project files into Eclipse.

  I am getting the following 2 errors :
  1a. Description : Project "ProjectTest" is missing required Java project "Project"
  I have loaded the Project project already and i can see it
  1b. Location : Build Path
  1c. Type : Build path problem

  2a. The project cannot be built until the build path problem has been resolved
  2b. Location : Unknown
  2c. Type : Java Problem
  
  Please note that I have no clue about editing what file : the available files are : Build.properties and build.xml

  Also how do I install ant into Eclipse and how do i run the application, as an Android, or JavaUnit ..?
  
  Any help will be greatly appreciated

• How to enable HW decoder via Stagefright in FFmpeg Android port

  29 juin 2012, par vitakot

  I have created a media player based on FFmpeg, it works well, but I need to enable HW decoder. I am trying to compile FFmpeg with Stagefright support – using prepared build script in FFmpeg/tools directory. It compiles fine without any error. I have all libraries. The problem is that once I link resulting libraries with my player I am getting an exception when trying to load it :

  java.lang.UnsatisfiedLinkError: Cannot load library: reloc_library[1314]:  1269 cannot locate '__aeabi_lasr'...

  Without that support everything works perfectly.

  Somebody had a similar problem here. But the solution does not work for me.

  I also changed a build script a bit according to this one - added --extra-libs="-lgcc" and –nostdlib, but nothing changed.

  Has anyone made it working ? There is no readme, no clue, just a build script and that’s all...