which libs shoud I link on windows

[vincent1941]

I have successfully cross compile x264 for windows on centos5.8:

./configure --enable-static --enable-win32thread --host=i686-w64-mingw32 --prefix=/home/bxg/opensdk --cross-prefix=i686-w64-mingw32-

I copy the compiled libx264.a to visual studio 2008 env and build a sample. But I don't know which mingw libs (and where to find them) to link:

The link error below:

1>------ Build started: Project: h264_enc_test, Configuration: Release Win32 ------
1>Linking...
1>libx264.a(analyse.o) : warning LNK4229: invalid directive '/aligncomm:_x264_cabac_size_unary,5' encountered; ignored
1>libx264.a(analyse.o) : warning LNK4229: invalid directive '/aligncomm:_x264_cabac_transition_unary,5' encountered; ignored
1>libx264.a(cabac.o) : warning LNK4229: invalid directive '/aligncomm:_x264_cabac_contexts,5' encountered; ignored
1>libx264.a(vlc.o) : warning LNK4229: invalid directive '/aligncomm:_x264_run_before,5' encountered; ignored
1>libx264.a(vlc.o) : warning LNK4229: invalid directive '/aligncomm:_x264_level_token,5' encountered; ignored
1>libx264.a(analyse.o) : error LNK2001: unresolved external symbol ___udivdi3
1>libx264.a(set.o) : error LNK2001: unresolved external symbol ___udivdi3
1>libx264.a(encoder.o) : error LNK2001: unresolved external symbol ___udivdi3
1>libx264.a(common.o) : error LNK2001: unresolved external symbol ___udivdi3
1>libx264.a(ratecontrol.o) : error LNK2001: unresolved external symbol ___udivdi3
1>libx264.a(macroblock.o) : error LNK2001: unresolved external symbol ___udivdi3
1>libx264.a(encoder.o) : error LNK2001: unresolved external symbol ___ms_vsnprintf
1>libx264.a(encoder.o) : error LNK2001: unresolved external symbol _log2f
1>libx264.a(set.o) : error LNK2001: unresolved external symbol _log2f
1>libx264.a(ratecontrol.o) : error LNK2001: unresolved external symbol _log2f
1>libx264.a(analyse.o) : error LNK2001: unresolved external symbol _log2f
1>libx264.a(encoder.o) : error LNK2001: unresolved external symbol _fseeko64
1>libx264.a(common.o) : error LNK2001: unresolved external symbol _fseeko64
1>libx264.a(common.o) : error LNK2001: unresolved external symbol ___umoddi3
1>libx264.a(common.o) : error LNK2001: unresolved external symbol ___strtod
1>libx264.a(common.o) : error LNK2001: unresolved external symbol _ftello64
1>libx264.a(set.o) : error LNK2001: unresolved external symbol ___divdi3
1>libx264.a(ratecontrol.o) : error LNK2001: unresolved external symbol ___divdi3
1>libx264.a(analyse.o) : error LNK2001: unresolved external symbol ___divdi3
1>libx264.a(ratecontrol.o) : error LNK2001: unresolved external symbol ___mingw_vfprintf
1>libx264.a(ratecontrol.o) : error LNK2001: unresolved external symbol ___mingw_vsprintf
1>libx264.a(ratecontrol.o) : error LNK2001: unresolved external symbol ___mingw_vsscanf
1>libx264.a(set.o) : error LNK2001: unresolved external symbol ___mingw_vsscanf
1>libx264.a(analyse.o) : error LNK2001: unresolved external symbol ___chkstk_ms
1>libx264.a(set.o) : error LNK2001: unresolved external symbol ___chkstk_ms
1>libx264.a(me.o) : error LNK2001: unresolved external symbol ___chkstk_ms

[rogerdpack]

I don't think anybody has done it but it's "several"...

[MtnViewJohn]

You can get rid of the ___chkstk_ms invocations by putting this in your configure options:

Code: Select all

--extra-cflags="-fno-stack-check -fno-stack-protector -mno-stack-arg-probe"

You probably want --enable-runtime-cpudetect if you want to run your program on other systems. The rest are dependencies from libm, libc, and libgcc.

I successfully linked static FFmpeg libraries against my code base without linking any of the mingw libraries. Instead I added a C file with functions for the missing symbols. I can't seem to attach the C file to this post, but you can find it at http://code.google.com/p/context-free/s ... mpegshim.c. It contains functions for many of the symbols that you require, but not all. Once you see it you will know what to add to get you program to link.

[njahnke]

i had to link in:
libmingwex.a
libmingw32.a

[JanJansen]

Dear all,

Can someone tell me how to add ffmpegshim.c? I added that file to the libavutil source tree but then I get a lot of (no previous prototype ...) errors.

Code: Select all

/usr/share/mingw-w64/include/time.h:260:8: note: originally defined here
 struct timezone {
        ^
libavutil/ffmpegshim.c:67:8: error: redefinition of ‘struct timeval’
 struct timeval {
        ^
In file included from /usr/share/mingw-w64/include/time.h:256:0,
                 from libavutil/ffmpegshim.c:33:
/usr/share/mingw-w64/include/_timeval.h:10:8: note: originally defined here
 struct timeval
        ^
libavutil/ffmpegshim.c:72:13: error: no previous prototype for ‘gettimeofday’ [-Werror=missing-prototypes]
 int __cdecl gettimeofday(
             ^
libavutil/ffmpegshim.c:111:13: error: no previous prototype for ‘usleep’ [-Werror=missing-prototypes]
 int __cdecl usleep(
             ^
libavutil/ffmpegshim.c:162:26: error: no previous prototype for ‘udivmodsi4’ [-Werror=missing-prototypes]
 unsigned __int64 __cdecl udivmodsi4(
                          ^
libavutil/ffmpegshim.c:186:17: error: no previous prototype for ‘__divdi3’ [-Werror=missing-prototypes]
 __int64 __cdecl __divdi3(
                 ^
libavutil/ffmpegshim.c:212:17: error: no previous prototype for ‘__moddi3’ [-Werror=missing-prototypes]
 __int64 __cdecl __moddi3(
                 ^
libavutil/ffmpegshim.c:236:26: error: no previous prototype for ‘__udivdi3’ [-Werror=missing-prototypes]
 unsigned __int64 __cdecl __udivdi3(
                          ^
libavutil/ffmpegshim.c:244:26: error: no previous prototype for ‘__umoddi3’ [-Werror=missing-prototypes]
 unsigned __int64 __cdecl __umoddi3(

I don't prefer to link mingw files also in VS2013 but only ffmpeg.