before we can discuss further, please provide the complete command line to the linker and error from it.
2011/9/29 mounir younes <[email protected]> > Yes I did that ! But still having the problem after building. > > > On Wed, Sep 28, 2011 at 7:53 PM, jan hölscher > <[email protected]>wrote: > >> did you surround your libav header includes with : >> >> #ifdef __cplusplus >> extern "C" { >> #endif >> #include <libavformat/avformat.h> >> #include <libavcodec/avcodec.h> >> #include <libavcodec/opt.h> >> #include <libavutil/avutil.h> >> #include <libswscale/swscale.h> >> #include <libavutil/fifo.h> >> #include <libavutil/rational.h> >> #ifdef __cplusplus >> } >> #endif >> >> >> 2011/9/28 mounir younes <[email protected]> >> >>> I gave the names without the linker prefix. I keep getting the "undefined >>> reference to" error and cannot solve it. >>> >>> On Sat, Sep 24, 2011 at 10:43 PM, Alex Cohn >>> <[email protected]>wrote: >>> >>>> In your list of libs, "-l" is obviously doubled. Try to give the names >>>> to the linker without the prefix. >>>> On Sep 24, 2011 7:58 AM, "mounir younes" <[email protected]> >>>> wrote: >>>> > Hello, I am new to ffmpeg and I am getting compiling errors while >>>> compiling >>>> > c++ code with ffmpeg libraries. It seems that a lot of people are >>>> getting >>>> > this with the new ffmpeg but I couldn't find a solution that I could >>>> > understand. >>>> > >>>> > I found a link that says that this >>>> > >>>> > CXXFLAGS=-D__STDC_CONSTANT_MACROS ./configure >>>> > (http://code.google.com/p/ffmpegsource/issues/detail?id=11) >>>> > >>>> > >>>> > solves it but unfortunately I tried it but nothing happened and I >>>> don't know >>>> > what to do ! I am adding the file headers which are being >>>> automatically >>>> > detected by netbeans so the libraries are already found. I tried >>>> adding >>>> > these -lavdevice -lavformat -lavcodec -lavutil -lswscale -lbz2 to the >>>> > linker as well >>>> > >>>> > ( >>>> > >>>> http://libav-users.943685.n4.nabble.com/QT-and-FFmpeg-undefined-reference-to-av-free-and-more-td946811.html >>>> > ) >>>> > >>>> > when adding them netbeans knew them and gave them proper library icons >>>> (thus >>>> > it recognized that these libraries are present otherwise it would've >>>> > replaced them with a white icon with question mark). But, when >>>> compiling I >>>> > get this >>>> > >>>> > /usr/bin/ld: cannot find -l-lavdevice >>>> > /usr/bin/ld: cannot find -l-lavformat >>>> > /usr/bin/ld: cannot find -l-lavcodec >>>> > /usr/bin/ld: cannot find -l-lavutil >>>> > /usr/bin/ld: cannot find -l-lswscale >>>> > /usr/bin/ld: cannot find -l-lbz2 >>>> > >>>> > And this is really killing me. I have been trying to solve this for >>>> days. >>>> > >>>> > Thank you in advance. >>>> >>>> _______________________________________________ >>>> Libav-user mailing list >>>> [email protected] >>>> http://ffmpeg.org/mailman/listinfo/libav-user >>>> >>>> >>> >>> _______________________________________________ >>> Libav-user mailing list >>> [email protected] >>> http://ffmpeg.org/mailman/listinfo/libav-user >>> >>> >> >> _______________________________________________ >> Libav-user mailing list >> [email protected] >> http://ffmpeg.org/mailman/listinfo/libav-user >> >> > > _______________________________________________ > Libav-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/libav-user > >
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