[Live-devel] linking error

[Anuroop Jesu]

check whether  you are linking following "*-lgroupsock*"




With Warm Regards
Jesu Anuroop Suresh

"Any intelligent fool can make things bigger, more complex, and more
violent. It takes a touch of genius -- and a lot of courage -- to move in
the opposite direction."
"Anyone who has never made a mistake has never tried anything new."






On Wed, May 19, 2010 at 12:39 PM, xiaoming chen
<timchen.xiaoming at gmail.com>wrote:

> Hi,guys, I now install a library named omnimeeting, which use live555
> ,ffmpeg and opencv as former library.
> There is nothing wrong when install, but I meet error when linking the
> library. Here is the error information:
>
> /usr/local/lib/libomnistream.so: undefined reference to
> `av_set_parameters(AVFormatContext*, AVFormatParameters*)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `av_open_input_file(AVFormatContext**, char const*, AVInputFormat*, int,
> AVFormatParameters*)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `Groupsock::wasLoopedBackFromUs(UsageEnvironment&, sockaddr_in&)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `av_find_stream_info(AVFormatContext*)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `HashTable::create(int)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `HashTable::RemoveNext()'
> /usr/local/lib/libomnistream.so: undefined reference to
> `Groupsock::~Groupsock()'
> /usr/local/lib/libomnistream.so: undefined reference to
> `avcodec_find_encoder(CodecID)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `sws_getContext(int, int, PixelFormat, int, int, PixelFormat, int,
> SwsFilter*, SwsFilter*, double*)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `avcodec_find_decoder(CodecID)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `avcodec_alloc_context()'
> /usr/local/lib/libomnistream.so: undefined reference to
> `Groupsock::removeAllDestinations()'
> /usr/local/lib/libomnistream.so: undefined reference to
> `avcodec_close(AVCodecContext*)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `av_read_frame(AVFormatContext*, AVPacket*)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `avcodec_alloc_frame()'
> /usr/local/lib/libomnistream.so: undefined reference to
> `Groupsock::Groupsock(UsageEnvironment&, in_addr const&, Port, unsigned
> char)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `avcodec_encode_audio(AVCodecContext*, unsigned char*, int, short const*)'
> /usr/local/lib/libomnistream.so: undefined reference to `guess_format(char
> const*, char const*, char const*)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `avcodec_open(AVCodecContext*, AVCodec*)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `HashTable::Iterator::create(HashTable&)'
> /usr/local/lib/libomnistream.so: undefined reference to `avcodec_init()'
> /usr/local/lib/libomnistream.so: undefined reference to `strDup(char
> const*)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `av_close_input_file(AVFormatContext*)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `avcodec_decode_video(AVCodecContext*, AVFrame*, int*, unsigned char const*,
> int)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `avcodec_register_all()'
> /usr/local/lib/libomnistream.so: undefined reference to
> `sws_freeContext(SwsContext*)'
> /usr/local/lib/libomnistream.so: undefined reference to `av_free(void*)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `sws_scale(SwsContext*, unsigned char**, int*, int, int, unsigned char**,
> int*)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `av_alloc_format_context()'
> /usr/local/lib/libomnistream.so: undefined reference to
> `avpicture_fill(AVPicture*, unsigned char*, int, int, int)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `Groupsock::removeDestination(in_addr const&, Port const&)'
> /usr/local/lib/libomnistream.so: undefined reference to `av_register_all()'
> /usr/local/lib/libomnistream.so: undefined reference to
> `avformat_alloc_context()'
> /usr/local/lib/libomnistream.so: undefined reference to
> `Groupsock::addDestination(in_addr const&, Port const&)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `av_new_stream(AVFormatContext*, int)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `Groupsock::multicastSendOnly()'
> /usr/local/lib/libomnistream.so: undefined reference to
> `avpicture_get_size(int, int, int)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `Groupsock::changeDestinationParameters(in_addr const&, Port, int)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `Groupsock::Groupsock(UsageEnvironment&, in_addr const&, in_addr const&,
> Port)'
> /usr/local/lib/libomnistream.so: undefined reference to `strDupSize(char
> const*)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `avcodec_encode_video(AVCodecContext*, unsigned char*, int, AVFrame const*)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `av_find_input_format(char const*)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `Groupsock::output(UsageEnvironment&, unsigned char, unsigned char*,
> unsigned int, DirectedNetInterface*)'
>
> I search for a solution for linking error about ffmpeg library:
> extern "C" {
> #define __STDC_CONSTANT_MACROS
> #include <libavcodec/avcodec.h>
> #include <libavformat/avformat.h>
> }
>
> And now the function in two libraries is ok, but still errors about others:
>
> /usr/local/lib/libomnistream.so: undefined reference to
> `Groupsock::wasLoopedBackFromUs(UsageEnvironment&, sockaddr_in&)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `HashTable::create(int)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `HashTable::RemoveNext()'
> /usr/local/lib/libomnistream.so: undefined reference to
> `Groupsock::~Groupsock()'
> /usr/local/lib/libomnistream.so: undefined reference to
> `sws_getContext(int, int, PixelFormat, int, int, PixelFormat, int,
> SwsFilter*, SwsFilter*, double*)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `Groupsock::removeAllDestinations()'
> /usr/local/lib/libomnistream.so: undefined reference to
> `Groupsock::Groupsock(UsageEnvironment&, in_addr const&, Port, unsigned
> char)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `HashTable::Iterator::create(HashTable&)'
> /usr/local/lib/libomnistream.so: undefined reference to `strDup(char
> const*)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `sws_freeContext(SwsContext*)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `sws_scale(SwsContext*, unsigned char**, int*, int, int, unsigned char**,
> int*)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `Groupsock::removeDestination(in_addr const&, Port const&)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `Groupsock::addDestination(in_addr const&, Port const&)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `Groupsock::multicastSendOnly()'
> /usr/local/lib/libomnistream.so: undefined reference to
> `Groupsock::changeDestinationParameters(in_addr const&, Port, int)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `Groupsock::Groupsock(UsageEnvironment&, in_addr const&, in_addr const&,
> Port)'
> /usr/local/lib/libomnistream.so: undefined reference to `strDupSize(char
> const*)'
> /usr/local/lib/libomnistream.so: undefined reference to
> `Groupsock::output(UsageEnvironment&, unsigned char, unsigned char*,
> unsigned int, DirectedNetInterface*)'
>
> These errors are mostly about the live555 libraries. And I'm confused
> again.
> Could someone do me a favor?
>
> _______________________________________________
> live-devel mailing list
> live-devel at lists.live555.com
> http://lists.live555.com/mailman/listinfo/live-devel
>
>
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