On Tue, Feb 7, 2012 at 06:54, yuvaraj r <[email protected]> wrote: > Hi All, > > > I compiled the ffmpeg source to generate the static(.a foramt) > libraries in linux. > > When i am linking the static libraries with my application, > > i am getting undefined reference for many functions. > > Even i tried with pkg-config. > > Here command , what i tried > > > gcc -shared -Wl,-soname,librecorder.so.1 '-Wl,-rpath,lib' -lpthread > -lXdamage -lXfixes -lXmu -lXi -lX11 > -L/home/peter/Desktop/screenrecorder/librecorder/src/../dependencies/lib > -lavformat -lavcodec -lavutil -lswscale `pkg-config --libs --cflags > libavutil` `pkg-config --libs --cflags libswscale` `pkg-config --libs > --cflags libavcodec` `pkg-config --libs --cflags libavformat` -o > librecorder.so.1.1 init.o main_entry.o xtoffmpeg.o > > > It is generated the librecorder library. I have all dependency libs > > when executing ld command > > #ld librecorder.so.1.1 > > librecorder.so.1: undefined reference to `av_new_stream' > librecorder.so.1: undefined reference to `av_read_packet' > librecorder.so.1: undefined reference to `avcodec_alloc_frame' > librecorder.so.1: undefined reference to `av_close_input_file' > librecorder.so.1: undefined reference to `audio_resample' > librecorder.so.1: undefined reference to `avcodec_find_encoder' > librecorder.so.1: undefined reference to `av_find_input_format' > librecorder.so.1: undefined reference to `avcodec_encode_audio' > librecorder.so.1: undefined reference to `dump_format' > librecorder.so.1: undefined reference to `av_open_input_file' > librecorder.so.1: undefined reference to `avcodec_find_decoder' > librecorder.so.1: undefined reference to `avcodec_close' > librecorder.so.1: undefined reference to `av_find_stream_info' > librecorder.so.1: undefined reference to `audio_resample_init' > librecorder.so.1: undefined reference to `avpicture_get_size' > librecorder.so.1: undefined reference to `av_register_all' > librecorder.so.1: undefined reference to `avcodec_decode_audio' > librecorder.so.1: undefined reference to `avcodec_open' > librecorder.so.1: undefined reference to `avcodec_encode_video' > librecorder.so.1: undefined reference to `av_destruct_packet_nofree' > librecorder.so.1: undefined reference to `avpicture_fill' > librecorder.so.1: undefined reference to `av_set_parameters' > librecorder.so.1: undefined reference to `av_alloc_format_c > > Now problem with static libraries. > > > #pkg-config --list-all | grep mpeg > libswscale libswscale - FFmpeg image rescaling library > libavutil libavutil - FFmpeg utility library > libavformat libavformat - FFmpeg container format library > libavcodec libavcodec - FFmpeg codec library > > > How do i solve this issue > > > Thanks > > > Yuvaraj R
As far as I know, -l flag on the gcc command line will prefer the shared version of the library. I.e. if you have both libavformat.a and libavformat.so visible to gcc, the latter will be used. BR, Alex _______________________________________________ Libav-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/libav-user
