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| author | Ramiro Polla <ramiro.polla@gmail.com> | 2010-10-06 03:14:07 +0000 |
|---|---|---|
| committer | Ramiro Polla <ramiro.polla@gmail.com> | 2010-10-06 03:14:07 +0000 |
| commit | e16c1569c08266b48644e23ca9fa58d87c7f5786 (patch) | |
| tree | 9d068902fa20b076177321cfa308b158c6398787 /doc/general.texi | |
| parent | bc3836a1806295cb929b0edf228dcb6df6945989 (diff) | |
| download | ffmpeg-e16c1569c08266b48644e23ca9fa58d87c7f5786.tar.gz | |
doc,win32: add note about the use of dllimport for global data in MSVC++
Originally committed as revision 25366 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'doc/general.texi')
| -rw-r--r-- | doc/general.texi | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/doc/general.texi b/doc/general.texi index faf2aecb24..fd5482c4f3 100644 --- a/doc/general.texi +++ b/doc/general.texi @@ -990,6 +990,15 @@ of DLL files, but the ones that are actually used to run your application are the ones with a major version number in their filenames (i.e. @file{avcodec-51.dll}). +FFmpeg headers do not declare global data for Windows DLLs through the usual +dllexport/dllimport interface. Such data will be exported properly while +building, but to use them in your MSVC++ code you will have to edit the +appropriate headers and mark the data as dllimport. For example, in +libavutil/pixdesc.h you should have: +@example +extern __declspec(dllimport) const AVPixFmtDescriptor av_pix_fmt_descriptors[]; +@end example + @subsection Cross compilation for Windows with Linux You must use the MinGW cross compilation tools available at |