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• COMPILATION ISSUES : FFMPEG CODE ON VS2012

  7 novembre 2013, par user2964667

  I have downloaded FFMPEG source code(c code) by the following link

  http://ffmpeg.zeranoe.com/builds/

  After that,I have completed the configuration part then i was generated and linked the library files *[avcodec-54.lib,avdevice-54.lib,avfilter-3.lib,avformat-54.lib,avutil-52.lib,swresample-0.lib,swscale-2.lib ]*on Microsoft Visual Studio C++ by creating a new project by including all .c and header files.

  Referred Links :
  http://www.ffmpeg.org/platform.html#Microsoft-Visual-C_002b_002b-or-Intel-C_002b_002b-Compiler-for-Windows

  When I was compiling on Visual studio 2010... I am getting more than 300 errors under all the files libavcodec,libavdevice,libavfilter,libavformat,libavresample,libavutil,libpostproc,libswresample,libswscale like

  ASM ERRORS :

  error C2400: inline assembler syntax error in 'opcode'; found 'data type'
  
  error C2065: '__asm__' : undeclared identifier
  
  error C2143: syntax error : missing ';' before 'volatile'

  SYNTAX ERRORS :

  error C2143: syntax error : missing '}' before '.'
  
  error C2143: syntax error : missing ';' before '.'
  
  error C2059: syntax error : '.'
  
  error C2143: syntax error : missing ';' before '}'
  
  error C2059: syntax error : '}'
  
  error C2143: syntax error : missing ';' before '{'
  
  error C2447: '{' : missing function header (old-style formal list?)
  
  error C2059: syntax error : ','
  
  error C2143: syntax error : missing ';' before '{'
  
  error C2447: '{' : missing function header (old-style formal list?)

  Please anyone let me know how to compile a ffmpeg c code on vs2010 successfully.

• How to play media using ffmpeg

  29 octobre 2018, par yyms

  Android Studio is converting ffmpeg to the current cmd command.
  But is there a way to play media through the cmd command ?

  • Converting : implementation ’nl.bravobit:android-ffmpeg:1.1.5’

  • Player : implementation ’com.github.wseemann:FFmpegMediaPlayer:1.0.4’

  • I have to use ffmpeg to play the media playback at double speed.

• How can I use my exe in a new Process() call ?

  24 février 2017, par looksgoodhoss

  I am working on a project where I create a 10 second sample from a video. To do this, I am using FFMPEG. I would like for the user to upload their own video where the sampling will then take place. The processing will be done in an Azure worker-role and that is where my problem lies.

  If I execute the following command (excuse the absolute paths, they’re my next problem) in Command Prompt then the sampling is completed successfully.

  ffmpeg -t 10 -i C:\Users\looksgoodhoss\Documents\Videos\video.mp4 -map_metadata 0 -acodec copy C:\Users\looksgoodhoss\Documents\Videos\vid.mp4 -y

  I am trying to bring this command into my Visual Studio project via a new Process() call. The video.mp4 and vid.mp4 are trivial names to test and work out my bug.

  bool success = false;
  
              string EXEArguements = @"ffmpeg -t 10 -i C:\Users\looksgoodhoss\Documents\Videos\video.mp4 -map_metadata 0 -acodec copy C:\Users\looksgoodhoss\Documents\Videos\vid.mp4 -y";
  
              string EXEPath = Path.Combine(Environment.GetEnvironmentVariable("RoleRoot") + @"\", @"approot\ffmpeg.exe");
  
  
  
              try
  
              {
  
                  Process proc = new Process();
  
                  //proc.StartInfo.FileName = @"C:\FFMPEG\bin\ffmpeg";
  
                  proc.StartInfo.FileName = EXEPath;
  
                  proc.StartInfo.Arguments = EXEArguements;
  
                  proc.StartInfo.CreateNoWindow = true;
  
                  proc.StartInfo.UseShellExecute = false;
  
                  proc.StartInfo.ErrorDialog = false;
  
  
  
                  Trace.TraceInformation("FFMPEG completed."); // is shown in log
  
  
  
                  proc.Start();
  
                  proc.WaitForExit();
  
                  success = true;
  
              }
  
              catch (Exception e)
  
              {
  
                  throw;
  
              }
  
              return success;

  The message "FFMPEG completed" is shown in the Compute Emulator UI and so I know that this block of code is executing, however, they’re is no sample video created despite the command being the same.

  Am I executing FFMPEG incorrectly in my Visual Studio project ? I think this is my problem because the same command can successfully be performed through Command Prompt.

  Any help or advice would be greatly appreciated,

  Thanks.