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• Anything Wrong with (char[32]){0} in Visual Studio 2012?

  5 July 2014, by loppp

  ===== background ====

  This problem originates from using fFmpeg lib sample muxing.c in visual studio 2012, I found the the error:

  error C2143: Syntax error missing ) before {

  at

  printf("pts:%s pts_time:%s dts:%s dts_time:%s duration:%s duration_time:%s stream_index:%d\n",
  
      av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, time_base),
  
      av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, time_base),
  
      av_ts2str(pkt->duration), av_ts2timestr(pkt->duration, time_base),
  
      pkt->stream_index);    

  and I found

  #define AV_TS_MAX_STRING_SIZE 32
  
  #define av_ts2str(ts) av_ts_make_string((char[AV_TS_MAX_STRING_SIZE]){0}, ts)

  for eliminate irrelevant statement, I just replace the big printf with

  printf("pts:%s \n",
  
      (char[32]){0}
  
      );

  but the error still the same, looks the error is from

  (char[32]){0}

  ===== question ====

  As this sample source file muxing.c is official one (I think), might not possibly wrong, so is the statement wrong or not compatible with VS compiler ? or I am missing something here ?

• Unable to link FFMpeg libraries in Visual studio 2012

  29 June 2013, by Pferd

  I have been trying to link the FFMPEG static libraries to Visual studio 2012 in c++ environment. But i get the following error.

  • Error 1 error LNK1104: cannot open file
    'avcodec.lib' C:\Users\username\Documents\Visual Studio
    2012\Projects\ConsoleApplication5\ConsoleApplication5\LINK ConsoleApplication5

  my lib files were located in C:\Users\username\Documents\Visual Studio 2012\Projects\ConsoleApplication5\ConsoleApplication5\ExtLib\lib

  The compile seems to be fine. The command line is

  • /Yu"stdafx.h" /GS /W3 /Zc:wchar_t
    /I"C:\Users\username\Documents\Visual Studio
    2012\Projects\ConsoleApplication5\ConsoleApplication5\ExtLib\include"
    /Zi /Gm /Od /sdl /Fd"x64\Debug\vc110.pdb" /fp:precise /D "WIN32" /D
    "_DEBUG" /D "_CONSOLE" /D "_UNICODE" /D "UNICODE" /errorReport:prompt
    /WX- /Zc:forScope /RTC1 /Gd /MTd /Fa"x64\Debug\" /EHsc /nologo
    /Fo"x64\Debug\" /Fp"x64\Debug\ConsoleApplication5.pch"

  The main issue seems to be at the linking stage where I have just not been able to get VS2012 to find my ffmpeg .lib files

  The linker command line is below:

  • /OUT:"C:\Users\username\Documents\Visual Studio
    2012\Projects\ConsoleApplication5\x64\Debug\ConsoleApplication5.exe"
    /MANIFEST /NXCOMPAT /PDB:"C:\Users\username\Documents\Visual Studio
    2012\Projects\ConsoleApplication5\x64\Debug\ConsoleApplication5.pdb"
    /DYNAMICBASE "avcodec.lib" "kernel32.lib" "user32.lib" "gdi32.lib"
    "winspool.lib" "comdlg32.lib" "advapi32.lib" "shell32.lib"
    "ole32.lib" "oleaut32.lib" "uuid.lib" "odbc32.lib" "odbccp32.lib"
    /DEBUG /MACHINE:X64 /OPT:NOREF /INCREMENTAL
    /PGD:"C:\Users\username\Documents\Visual Studio
    2012\Projects\ConsoleApplication5\x64\Debug\ConsoleApplication5.pgd"
    /SUBSYSTEM:CONSOLE /MANIFESTUAC:"level='asInvoker' uiAccess='false'"
    /ManifestFile:"x64\Debug\ConsoleApplication5.exe.intermediate.manifest"
    /ERRORREPORT:PROMPT /NOLOGO
    /LIBPATH:"/LIBPATH:C:\Users\username\Documents\Visual Studio
    2012\Projects\ConsoleApplication5\ConsoleApplication5\ExtLib\lib"
    /TLBID:1

  I cant figure out why the linker cant locate my ffmpeg lib files even though they are physically located in the /LIBPATH area - c:...\vs12...\ExtLib\lib

• ffmpeg and Visual Studio 2012 stepwise

  1 June 2013, by Hitesh Rohilla

  I am new to Visual Studio and using C# on visual studio 2012 for my codes. I have google everywhere to get answer for "How to install and use ffmpeg with visual studio?" but nobody is giving correct answer... even on stackoverflow, code project and many personal blogs i just found discussion about some codes and dll... even before asking this question i found someone on stackoverflow has asked question "how to install ffmpeg on visual studio 2012" but unfortunately he/she assigned [duplicate] on his/her question... people say use this; use that but nobody is telling after downloading ffmpeg what should i do...

  i want to know how and where to put or import ffmpeg functionality in visual studio and then only i can code ffmpeg in visual studio.

  even i found step-wise of same for php but its not helpful for me as i want to use visual studio c#

  just want step-wise guide starting from download to writing code and in between... specially those [in between]...