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<div id="projectname">liblinphone
 <span id="projectnumber">3.5.2</span>
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<div class="title">Basic call</div> </div>
<div class="ingroups"><a class="el" href="group__tutorials.html">Tutorials:</a></div></div><!--header-->
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<p>This program is a <em>very</em> simple usage example of liblinphone. It just takes a sip-uri as first argument and attempts to call it</p>
<div class="fragment"><div class="line"></div>
<div class="line"><span class="comment">/*</span></div>
<div class="line"><span class="comment">linphone</span></div>
<div class="line"><span class="comment">Copyright (C) 2010 Belledonne Communications SARL </span></div>
<div class="line"><span class="comment"> (simon.morlat@linphone.org)</span></div>
<div class="line"><span class="comment"></span></div>
<div class="line"><span class="comment">This program is free software; you can redistribute it and/or</span></div>
<div class="line"><span class="comment">modify it under the terms of the GNU General Public License</span></div>
<div class="line"><span class="comment">as published by the Free Software Foundation; either version 2</span></div>
<div class="line"><span class="comment">of the License, or (at your option) any later version.</span></div>
<div class="line"><span class="comment"></span></div>
<div class="line"><span class="comment">This program is distributed in the hope that it will be useful,</span></div>
<div class="line"><span class="comment">but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><span class="comment">MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div>
<div class="line"><span class="comment">GNU General Public License for more details.</span></div>
<div class="line"><span class="comment"></span></div>
<div class="line"><span class="comment">You should have received a copy of the GNU General Public License</span></div>
<div class="line"><span class="comment">along with this program; if not, write to the Free Software</span></div>
<div class="line"><span class="comment">Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.</span></div>
<div class="line"><span class="comment">*/</span></div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#ifdef IN_LINPHONE</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#include "linphonecore.h"</span></div>
<div class="line"><span class="preprocessor">#else</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#include "linphone/linphonecore.h"</span></div>
<div class="line"><span class="preprocessor">#endif</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"><span class="preprocessor">#include <signal.h></span></div>
<div class="line"></div>
<div class="line"><span class="keyword">static</span> bool_t running=TRUE;</div>
<div class="line"></div>
<div class="line"><span class="keyword">static</span> <span class="keywordtype">void</span> stop(<span class="keywordtype">int</span> signum){</div>
<div class="line"> running=FALSE;</div>
<div class="line">}</div>
<div class="line"></div>
<div class="line"><span class="comment">/*</span></div>
<div class="line"><span class="comment"> * Call state notification callback</span></div>
<div class="line"><span class="comment"> */</span></div>
<div class="line"><span class="keyword">static</span> <span class="keywordtype">void</span> call_state_changed(<a class="code" href="group__initializing.html#gaa5cf635b82dd338e7ee2dd3599d05f0a">LinphoneCore</a> *lc, LinphoneCall *call, <a class="code" href="group__call__control.html#ga37dad1a4f935d9cc26ec1f9d2b23691a">LinphoneCallState</a> cstate, <span class="keyword">const</span> <span class="keywordtype">char</span> *msg){</div>
<div class="line"> <span class="keywordflow">switch</span>(cstate){</div>
<div class="line"> <span class="keywordflow">case</span> <a class="code" href="group__call__control.html#ggafc310fd9ba742f7730c632fd72b875eaa229cfe72a8dfee15bdae9f2125b43c67">LinphoneCallOutgoingRinging</a>:</div>
<div class="line"> printf(<span class="stringliteral">"It is now ringing remotely !\n"</span>);</div>
<div class="line"> <span class="keywordflow">break</span>;</div>
<div class="line"> <span class="keywordflow">case</span> <a class="code" href="group__call__control.html#ggafc310fd9ba742f7730c632fd72b875eaa7a8cd38252c1a9d8c0ecbdec1aef899d">LinphoneCallOutgoingEarlyMedia</a>:</div>
<div class="line"> printf(<span class="stringliteral">"Receiving some early media\n"</span>);</div>
<div class="line"> <span class="keywordflow">break</span>;</div>
<div class="line"> <span class="keywordflow">case</span> <a class="code" href="group__call__control.html#ggafc310fd9ba742f7730c632fd72b875eaa1a32cc3919ca3658eed7deebadbe13b9">LinphoneCallConnected</a>:</div>
<div class="line"> printf(<span class="stringliteral">"We are connected !\n"</span>);</div>
<div class="line"> <span class="keywordflow">break</span>;</div>
<div class="line"> <span class="keywordflow">case</span> <a class="code" href="group__call__control.html#ggafc310fd9ba742f7730c632fd72b875eaacebe90cc045331e513d069872f9c84d3">LinphoneCallStreamsRunning</a>:</div>
<div class="line"> printf(<span class="stringliteral">"Media streams established !\n"</span>);</div>
<div class="line"> <span class="keywordflow">break</span>;</div>
<div class="line"> <span class="keywordflow">case</span> <a class="code" href="group__call__control.html#ggafc310fd9ba742f7730c632fd72b875eaafbeebb1285a2aab5d34e99d2e695e5be">LinphoneCallEnd</a>:</div>
<div class="line"> printf(<span class="stringliteral">"Call is terminated.\n"</span>);</div>
<div class="line"> <span class="keywordflow">break</span>;</div>
<div class="line"> <span class="keywordflow">case</span> <a class="code" href="group__call__control.html#ggafc310fd9ba742f7730c632fd72b875eaa1214ea33f3ff7fd8aa0ce8922dda5170">LinphoneCallError</a>:</div>
<div class="line"> printf(<span class="stringliteral">"Call failure !"</span>);</div>
<div class="line"> <span class="keywordflow">break</span>;</div>
<div class="line"> <span class="keywordflow">default</span>:</div>
<div class="line"> printf(<span class="stringliteral">"Unhandled notification %i\n"</span>,cstate);</div>
<div class="line"> }</div>
<div class="line">}</div>
<div class="line"></div>
<div class="line"><span class="keywordtype">int</span> main(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> *argv[]){</div>
<div class="line"> <a class="code" href="struct__LinphoneVTable.html">LinphoneCoreVTable</a> vtable={0};</div>
<div class="line"> <a class="code" href="group__initializing.html#gaa5cf635b82dd338e7ee2dd3599d05f0a">LinphoneCore</a> *lc;</div>
<div class="line"> LinphoneCall *call=NULL;</div>
<div class="line"> <span class="keyword">const</span> <span class="keywordtype">char</span> *dest=NULL;</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* take the destination sip uri from the command line arguments */</span></div>
<div class="line"> <span class="keywordflow">if</span> (argc>1){</div>
<div class="line"> dest=argv[1];</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> signal(SIGINT,stop);</div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#ifdef DEBUG</span></div>
<div class="line"><span class="preprocessor"></span> <a class="code" href="group__misc.html#gad70dc5268366c829238b458547fe5277">linphone_core_enable_logs</a>(NULL); <span class="comment">/*enable liblinphone logs.*/</span></div>
<div class="line"><span class="preprocessor">#endif</span></div>
<div class="line"><span class="preprocessor"></span> <span class="comment">/* </span></div>
<div class="line"><span class="comment"> Fill the LinphoneCoreVTable with application callbacks.</span></div>
<div class="line"><span class="comment"> All are optional. Here we only use the call_state_changed callbacks</span></div>
<div class="line"><span class="comment"> in order to get notifications about the progress of the call.</span></div>
<div class="line"><span class="comment"> */</span></div>
<div class="line"> vtable.<a class="code" href="struct__LinphoneVTable.html#aeceb506ab2f449d04705d7289b067ced">call_state_changed</a>=call_state_changed;</div>
<div class="line"></div>
<div class="line"> <span class="comment">/*</span></div>
<div class="line"><span class="comment"> Instanciate a LinphoneCore object given the LinphoneCoreVTable</span></div>
<div class="line"><span class="comment"> */</span></div>
<div class="line"> lc=<a class="code" href="group__initializing.html#gac93ed982ae84a5a282a703c8433ca42f">linphone_core_new</a>(&vtable,NULL,NULL,NULL);</div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">if</span> (dest){</div>
<div class="line"> <span class="comment">/*</span></div>
<div class="line"><span class="comment"> Place an outgoing call</span></div>
<div class="line"><span class="comment"> */</span></div>
<div class="line"> call=<a class="code" href="group__call__control.html#gaaea662739cc3825eaa80d8ac264a883c">linphone_core_invite</a>(lc,dest);</div>
<div class="line"> <span class="keywordflow">if</span> (call==NULL){</div>
<div class="line"> printf(<span class="stringliteral">"Could not place call to %s\n"</span>,dest);</div>
<div class="line"> <span class="keywordflow">goto</span> end;</div>
<div class="line"> }<span class="keywordflow">else</span> printf(<span class="stringliteral">"Call to %s is in progress..."</span>,dest);</div>
<div class="line"> <a class="code" href="group__call__control.html#gae89a66b64e8767ef72d3691743e35c43">linphone_call_ref</a>(call);</div>
<div class="line"> }</div>
<div class="line"> <span class="comment">/* main loop for receiving notifications and doing background linphonecore work: */</span></div>
<div class="line"> <span class="keywordflow">while</span>(running){</div>
<div class="line"> <a class="code" href="group__initializing.html#ga7bdac8ac386483fc4e0876e4c5d13755">linphone_core_iterate</a>(lc);</div>
<div class="line"> ms_usleep(50000);</div>
<div class="line"> }</div>
<div class="line"> <span class="keywordflow">if</span> (call && <a class="code" href="group__call__control.html#ga4e66e41e6557ea35a07f266918741ffc">linphone_call_get_state</a>(call)!=<a class="code" href="group__call__control.html#ggafc310fd9ba742f7730c632fd72b875eaafbeebb1285a2aab5d34e99d2e695e5be">LinphoneCallEnd</a>){</div>
<div class="line"> <span class="comment">/* terminate the call */</span></div>
<div class="line"> printf(<span class="stringliteral">"Terminating the call...\n"</span>);</div>
<div class="line"> <a class="code" href="group__call__control.html#ga2dcc69dfc22e15d3cdadf8e688eedbfe">linphone_core_terminate_call</a>(lc,call);</div>
<div class="line"> <span class="comment">/*at this stage we don't need the call object */</span></div>
<div class="line"> <a class="code" href="group__call__control.html#gae69d2d9891695c07fca0637ef7fd7df6">linphone_call_unref</a>(call);</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line">end:</div>
<div class="line"> printf(<span class="stringliteral">"Shutting down...\n"</span>);</div>
<div class="line"> <a class="code" href="group__initializing.html#ga5e3f2f87c8d8262caa1fa90bbd504008">linphone_core_destroy</a>(lc);</div>
<div class="line"> printf(<span class="stringliteral">"Exited\n"</span>);</div>
<div class="line"> <span class="keywordflow">return</span> 0;</div>
<div class="line">}</div>
<div class="line"></div>
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