[Linphone-developers] how to use mediastreamer2 library as an external library

[Wu Shan]

Dear All,

                  I have been learning how does conferece call work. 

I found out the key should be mediastreamer2 since it provides 

conference calls API. But When I try to install the mediastreamer2 library, it showed

me an error msg: 

========================Error Msg ============================

…

checking for avcodec_register_all in -lavcodec... yes

checking libswscale/swscale.h usability... yes

checking libswscale/swscale.h presence... yes

checking for libswscale/swscale.h... yes

checking X11/Xlib.h usability... yes

checking X11/Xlib.h presence... yes

checking for X11/Xlib.h... yes

checking X11/extensions/Xv.h usability... yes

checking X11/extensions/Xv.h presence... yes

checking for X11/extensions/Xv.h... yes

checking for X11/extensions/Xvlib.h... yes

checking for XvCreateImage in -lXv... yes

checking for THEORA... no

checking for VP8... no

checking vpx/vpx_encoder.h usability... yes

checking vpx/vpx_encoder.h presence... yes

checking for vpx/vpx_encoder.h... yes

checking for vpx_codec_encode in -lvpx... yes

checking for ORTP... no

configure: error: Couldn't find ortp library

========================Error Msg ============================

I realize I probably have to modify the configure shell script to proper path, since the configure 

shell script set up the path as if mediastreamer2 itself is within linphone. But I am wondering 

if there is any other way to make mediastreamer2 an external library for my testing program.

Btw, I issue the command 

#sudo ./configure --enable-external-ortp 

but I still got the same error... 

                                                                                                                            Sincerely,

                                                                                                                              Shanwu