On Thu, 17 Oct 2013 10:44:23 -0400, Brian Mearns <[email protected]> wrote: > I'm trying to build a very minimal program from the ffmpeg src > distributions examples, and it seems it can't find any of the libav* > functions. > > I'm running windows 7 (64-bit) and mingw gcc version 4.7.1. > > I've just downloaded version 9.7 of libav from > http://win32.libav.org/releases/libav-9.7-win64.7z, and unpacked it so that > bin/, include/, lib/, and share/ are all under C:\apps\pf\libav\. > > From the ffmpeg examples (external to libav), I can run pkg-config and get > the options for libav, and I use the following commands to compile and > link, respectively: > > >gcc -o metadata.obj -c -IC:\apps\pf\libav\include metadata.c > > >gcc -o metadata.exe metadata.obj -LC:\apps\pf\libav\lib -lavutil > -lavdevice -lavformat -lavfilter -lavcodec -lavresample -lswscale
Order matters here, libraries must appears in the order of dependency. lavf depends on lavc, lavfi on sws and lavr, everything depends on lavu. That means that -lavcodec must be after -lavformat, -lavutil must be last, etc. -- Anton Khirnov _______________________________________________ libav-api mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-api
