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• ffmpeg compilation error in windows 10 x64 for Visual Studio 2015 CE

  12 avril 2016, par Anqush

  So i was trying to use FFmpegInterop for win10 UWP application. And followed the specification given on https://trac.ffmpeg.org/wiki/CompilationGuide/WinRT.

  here is some environment information :

  VS2015 Community Edition with 10.0.10240.0 SDK

  OS : Windows 10 Enterprise x64

  PATH were set to:Program Files (x86)/Microsoft Visual Studio 14.0/VC/BIN/x64_ARM

  So when i did this in msys2_shell.bat

  ../../../configure \
  
  --toolchain=msvc \
  
  --disable-programs \
  
  --disable-d3d11va \
  
  --disable-dxva2 \
  
  --arch=x86_64 \
  
  --enable-shared \
  
  --enable-cross-compile \
  
  --target-os=win32 \
  
  --extra-cflags="-MD -DWINAPI_FAMILY=WINAPI_FAMILY_APP -D_WIN32_WINNT=0x0A00" \
  
  --extra-ldflags="-APPCONTAINER WindowsApp.lib" \
  
  --prefix=../../../Build/Windows10/x64

  I got a warning regarding some pkg file that can’t be found and may cause library detection issues.

  For then i ignored it. After that i entered

  make

  this started a series of processing in which there is a lot of possibly harmful warnings. Like :-

  c:\ffmpeginterop\ffmpeg\libavcodec\get_bits.h(307): warning C4101: 're_cache': unreferenced local variable
  
  CC libavformat/srtdec.o
  
  srtdec.c
  
  c:\ffmpeginterop\ffmpeg\libavutil\libm.h(438): warning C4211: nonstandard extension used: redefined extern to static
  
  c:\ffmpeginterop\ffmpeg\libavformat\subtitles.h(189): warning C4267: 'initializing': conversion from 'size_t' to 'int', possible loss of data

  So my question is that. Is this dangerous to proceed with. Can you help me for i should proceed with my project without any worry or not ? And i would be gratefull if anyone can guide me to watc out for specific errors that this could generate.

  I know this is a lot to ask. But i would be gratefull.
  Thanks

  Edit : Now i cant run the samples included in the ffmpeginterop package. The sample project wont debug. saying these are out of date.

• Using ffmpeg with Visual Studio 2013 and C

  19 juin 2016, par user5000935

  I’m try
  main.c
  av_register_all() ;

  AVFormatContext *pFormatCtx = NULL;
  
  
  
  // Open video file
  
  if (avformat_open_input(&pFormatCtx, argv[1], NULL, NULL) != 0)
  
      return -1; // Couldn't open file
  
  
  
  if (avformat_find_stream_info(pFormatCtx, NULL) < 0)
  
      return -1; // Couldn't find stream information
  
  }

  • I’ve added the include (C :\ffmpeg\include) directory to my C/C++ > General > Additional Include Directories ;
  • I’ve added
    I’m using "Zeranoe FFmpeg Build Version : git-5911eeb (2015-10-08)". I tried both 32/64bits versions as said in another question here in SO.

  These are the errors I’m getting :

  Error   3   error C2143: syntax error : missing ';' before '{'  c:\ffmpeg\include\libavutil\error.h 110 1   FFMpeg Test
  
  Error   6   error C2143: syntax error : missing ';' before '{'  c:\ffmpeg\include\libavutil\mem.h   94  1   FFMpeg Test
  
  Error   9   error C2143: syntax error : missing ';' before '{'  c:\ffmpeg\include\libavutil\mem.h   229 1   FFMpeg Test
  
  Error   12  error C2143: syntax error : missing ';' before '{'  c:\ffmpeg\include\libavutil\mem.h   338 1   FFMpeg Test
  
  Error   15  error C2143: syntax error : missing ';' before '{'  c:\ffmpeg\include\libavutil\rational.h  54  1   FFMpeg Test
  
  Error   18  error C21in formal parameter list   c:\ffmpeg\include\libavutil\mem.h   338 1   FFMpeg Test
  
  Error   20  error C2085: 'av_q2d' : not in formal parameter list    c:\ffmpeg\include\libavutil\rational.h  80  1   FFMpeg Test
  
  Error   8   error C2085: 'av_mallocz_array' : not in formal parameter list  c:\ffmpeg\include\libavuormal parameter list    c:\ffmpeg\include\libavutil\rational.h  54  1   FFMpeg Test

• Need assistance to compile X264 in Visual Studio

  8 août 2016, par Vikram Bammanhalli

  I have been trying to open x264 code base in Visual Studio, by creating a separate project for it, but without any success.

  I thought it should have been straight forward. I could build X264 code using MinGW, but I need to edit the code and extract motion estimation code.

  Has anyone compiled/run the x264 from Visual Studio ?

  Thanks !