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• Could not load or assembly or one of its dependencies

  29 juin 2017, par Prathibha Chiranthana

  I am using Aforge.net frame work for doing image processing work.
  I have add ’AForge.Video.FFMPEG.dll’ as a referance to my project.
  I am using VS2012 and 32 bit build target.
  When Buiding i get

   System.IO.FileNotFoundException was unhandled
  
    HResult=-2147024770
  
    Message=Could not load file or assembly 'AForge.Video.FFMPEG.dll' or one of its dependencies. The specified module could not be found.
  
    Source=VideoReadere
  
    FileName=AForge.Video.FFMPEG.dll
  
    FusionLog=""
  
    StackTrace:
  
         at VideoReadere.Form1..ctor()
  
         at VideoReadere.Program.Main() in c:\Users\Prabad\Documents\Visual Studio 2012\Projects\VideoReadere\VideoReadere\Program.cs:line 19
  
         at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
  
         at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
  
         at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
  
         at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
  
         at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
  
         at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
  
         at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
  
         at System.Threading.ThreadHelper.ThreadStart()
  
    InnerException: 

  my code for that is occur exception

   using System;
  
  using System.Collections.Generic;
  
  using System.Linq;
  
  using System.Threading.Tasks;
  
  using System.Windows.Forms;
  
  
  
  namespace VideoReadere
  
  {
  
      static class Program
  
      {
  
          /// <summary>
  
          /// The main entry point for the application.
  
          /// </summary>
  
          [STAThread]
  
          static void Main()
  
          {
  
              Application.EnableVisualStyles();
  
              Application.SetCompatibleTextRenderingDefault(false);
  
  //here below line give exception
  
              Application.Run(new Form1());
  
          }
  
      }
  
  }

• Compiling ffmpeg for android using cygwin-x86

  11 mai 2015, par VEP10

  I’d like to test ijkplayer (android) project.
  During compiling ffmpeg libs (./compile-ffmpeg.sh) usin Cygwin in WIN7 environment I faced the following error message :

  "build on CYGWIN_NT-6.1 x86_64
  Host system ’cygwin-x86’ is not supported by the source NDK !
  Try —system= with one of : windows-x86_64"

  The suggested ’system’ command doesn’t solve the problem.
  Axtually I use android-ndk-r10c

  If I try the same process using MINGW32 I get a lot of syntax error.
  Please help !

• mplayer output 4 audio channels to jack

  14 novembre 2013, par MrCastro

  I am struggling with getting mplayer to reproduce a 4 audio channel wav file.

  I created a 4chn audio file.
  Want mplayer to player, and output it to jack.
  The problem is that i am only able to get in jack 2 mplayer channels.

  if I do :

  mplayer -ao jack -channels 4 test_4chan_2.wav 

  mplayer plays and responds :

  laying test_4chan_2.wav.
  
  libavformat version 54.6.100 (internal)
  
  Audio only file format detected.
  
  Load subtitles in ./
  
  ==========================================================================
  
  Opening audio decoder: [pcm] Uncompressed PCM audio decoder
  
  AUDIO: 44100 Hz, 4 ch, s16le, 2822.4 kbit/100.00% (ratio: 352800->352800)
  
  Selected audio codec: [pcm] afm: pcm (Uncompressed PCM)
  
  ==========================================================================
  
  AO: [jack] 44100Hz 2ch floatle (4 bytes per sample)
  
  Video: no video
  
  Starting playback...

  and jack has only the following outputs :

  system:capture_1
  
  system:capture_2
  
  system:playback_1
  
  system:playback_2
  
  MPlayer [14434]:out_0
  
  MPlayer [14434]:out_1

  So it seems that mplayer recognizes that the input file as 4ch
  but on AO : [jack] only 2ch appear

  if I try the same with ecasound :

  ecasound -f 16,4,44100 -i test_4chan_2.wav -o jack 

  in Jack ecasoud appears with 4 outputs

  system:capture_1
  
  system:capture_2
  
  system:playback_1
  
  system:playback_2
  
  ecasound:out_1
  
  ecasound:out_2
  
  ecasound:out_3
  
  ecasound:out_4

  Do you have any idea of what could I be doing wrong ??
  I am running Debian (Jessy) and mplayer 1.1-4.7

  Thanks a lot