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<a href="telephonyevents_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> The oRTP library is an RTP (Realtime Transport Protocol - rfc3550) stack.</span>
<a name="l00003"></a>00003 <span class="comment"> Copyright (C) 2001 Simon MORLAT simon.morlat@linphone.org</span>
<a name="l00004"></a>00004 <span class="comment"></span>
<a name="l00005"></a>00005 <span class="comment"> This library is free software; you can redistribute it and/or</span>
<a name="l00006"></a>00006 <span class="comment"> modify it under the terms of the GNU Lesser General Public</span>
<a name="l00007"></a>00007 <span class="comment"> License as published by the Free Software Foundation; either</span>
<a name="l00008"></a>00008 <span class="comment"> version 2.1 of the License, or (at your option) any later version.</span>
<a name="l00009"></a>00009 <span class="comment"></span>
<a name="l00010"></a>00010 <span class="comment"> This library is distributed in the hope that it will be useful,</span>
<a name="l00011"></a>00011 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00012"></a>00012 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
<a name="l00013"></a>00013 <span class="comment"> Lesser General Public License for more details.</span>
<a name="l00014"></a>00014 <span class="comment"></span>
<a name="l00015"></a>00015 <span class="comment"> You should have received a copy of the GNU Lesser General Public</span>
<a name="l00016"></a>00016 <span class="comment"> License along with this library; if not, write to the Free Software</span>
<a name="l00017"></a>00017 <span class="comment"> Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span>
<a name="l00018"></a>00018 <span class="comment">*/</span>
<a name="l00019"></a>00019
<a name="l00027"></a>00027 <span class="preprocessor">#ifndef TELEPHONYEVENTS_H</span>
<a name="l00028"></a>00028 <span class="preprocessor"></span><span class="preprocessor">#define TELEPHONYEVENTS_H</span>
<a name="l00029"></a>00029 <span class="preprocessor"></span>
<a name="l00030"></a>00030 <span class="preprocessor">#include <<a class="code" href="rtpsession_8h.html" title="The RtpSession api.">ortp/rtpsession.h</a>></span>
<a name="l00031"></a>00031
<a name="l00032"></a>00032
<a name="l00033"></a><a class="code" href="struct__telephone__event.html">00033</a> <span class="keyword">struct </span><a class="code" href="struct__telephone__event.html">_telephone_event</a>
<a name="l00034"></a>00034 {
<a name="l00035"></a>00035 <span class="preprocessor">#ifdef ORTP_BIGENDIAN</span>
<a name="l00036"></a>00036 <span class="preprocessor"></span> uint32_t <span class="keyword">event</span>:8;
<a name="l00037"></a>00037 uint32_t E:1;
<a name="l00038"></a>00038 uint32_t R:1;
<a name="l00039"></a>00039 uint32_t volume:6;
<a name="l00040"></a>00040 uint32_t duration:16;
<a name="l00041"></a>00041 <span class="preprocessor">#else</span>
<a name="l00042"></a>00042 <span class="preprocessor"></span> uint32_t <span class="keyword">event</span>:8;
<a name="l00043"></a>00043 uint32_t volume:6;
<a name="l00044"></a>00044 uint32_t R:1;
<a name="l00045"></a>00045 uint32_t E:1;
<a name="l00046"></a>00046 uint32_t duration:16;
<a name="l00047"></a>00047 <span class="preprocessor">#endif</span>
<a name="l00048"></a>00048 <span class="preprocessor"></span>};
<a name="l00049"></a>00049
<a name="l00050"></a>00050 <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="struct__telephone__event.html">_telephone_event</a> <a class="code" href="struct__telephone__event.html">telephone_event_t</a>;
<a name="l00051"></a>00051
<a name="l00052"></a>00052 <span class="preprocessor">#ifdef __cplusplus</span>
<a name="l00053"></a>00053 <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">"C"</span> {
<a name="l00054"></a>00054 <span class="preprocessor">#endif</span>
<a name="l00055"></a>00055 <span class="preprocessor"></span>
<a name="l00056"></a>00056 <span class="comment">/* tell if the session supports telephony events. For this the telephony events payload_type </span>
<a name="l00057"></a>00057 <span class="comment"> must be present in the rtp profile used by the session */</span>
<a name="l00058"></a>00058
<a name="l00059"></a>00059 <span class="comment">/* low level functions */</span>
<a name="l00060"></a>00060 <span class="keywordtype">int</span> rtp_session_telephone_events_supported(<a class="code" href="struct__RtpSession.html">RtpSession</a> *session);
<a name="l00061"></a>00061 <span class="keywordtype">int</span> rtp_session_send_telephone_events_supported(<a class="code" href="struct__RtpSession.html">RtpSession</a> *session);
<a name="l00062"></a>00062 <span class="keywordtype">int</span> rtp_session_recv_telephone_events_supported(<a class="code" href="struct__RtpSession.html">RtpSession</a> *session);
<a name="l00063"></a>00063
<a name="l00064"></a>00064 <a class="code" href="structmsgb.html">mblk_t</a> *rtp_session_create_telephone_event_packet(<a class="code" href="struct__RtpSession.html">RtpSession</a> *session, <span class="keywordtype">int</span> start);
<a name="l00065"></a>00065
<a name="l00066"></a>00066 <span class="keywordtype">int</span> rtp_session_add_telephone_event(<a class="code" href="struct__RtpSession.html">RtpSession</a> *session,
<a name="l00067"></a>00067 <a class="code" href="structmsgb.html">mblk_t</a> *packet, uint8_t event, <span class="keywordtype">int</span> end, uint8_t volume, uint16_t duration);
<a name="l00068"></a>00068
<a name="l00069"></a>00069 <span class="keywordtype">int</span> rtp_session_read_telephone_event(<a class="code" href="struct__RtpSession.html">RtpSession</a> *session,
<a name="l00070"></a>00070 <a class="code" href="structmsgb.html">mblk_t</a> *packet,<a class="code" href="struct__telephone__event.html">telephone_event_t</a> **tab);
<a name="l00071"></a>00071
<a name="l00072"></a>00072 <span class="comment">/* high level functions*/</span>
<a name="l00073"></a>00073 <span class="keywordtype">int</span> rtp_session_send_dtmf(<a class="code" href="struct__RtpSession.html">RtpSession</a> *session, <span class="keywordtype">char</span> dtmf, uint32_t userts);
<a name="l00074"></a>00074 <span class="keywordtype">int</span> rtp_session_send_dtmf2(<a class="code" href="struct__RtpSession.html">RtpSession</a> *session, <span class="keywordtype">char</span> dtmf, uint32_t userts, <span class="keywordtype">int</span> duration);
<a name="l00075"></a>00075 <span class="comment">/* for high level telephony event callback */</span>
<a name="l00076"></a>00076 <span class="keywordtype">void</span> rtp_session_check_telephone_events(<a class="code" href="struct__RtpSession.html">RtpSession</a> *session, <a class="code" href="structmsgb.html">mblk_t</a> *m0);
<a name="l00077"></a>00077
<a name="l00078"></a>00078 <span class="preprocessor">#ifdef __cplusplus</span>
<a name="l00079"></a>00079 <span class="preprocessor"></span>}
<a name="l00080"></a>00080 <span class="preprocessor">#endif</span>
<a name="l00081"></a>00081 <span class="preprocessor"></span>
<a name="l00082"></a>00082 <span class="comment">/* the size allocated for telephony events packets */</span>
<a name="l00083"></a>00083 <span class="preprocessor">#define TELEPHONY_EVENTS_ALLOCATED_SIZE (4*sizeof(telephone_event_t))</span>
<a name="l00084"></a>00084 <span class="preprocessor"></span>
<a name="l00085"></a>00085 <span class="comment">/* list of named events */</span>
<a name="l00086"></a>00086 <span class="preprocessor">#define TEV_DTMF_0 (0)</span>
<a name="l00087"></a>00087 <span class="preprocessor"></span><span class="preprocessor">#define TEV_DTMF_1 (1)</span>
<a name="l00088"></a>00088 <span class="preprocessor"></span><span class="preprocessor">#define TEV_DTMF_2 (2)</span>
<a name="l00089"></a>00089 <span class="preprocessor"></span><span class="preprocessor">#define TEV_DTMF_3 (3)</span>
<a name="l00090"></a>00090 <span class="preprocessor"></span><span class="preprocessor">#define TEV_DTMF_4 (4)</span>
<a name="l00091"></a>00091 <span class="preprocessor"></span><span class="preprocessor">#define TEV_DTMF_5 (5)</span>
<a name="l00092"></a>00092 <span class="preprocessor"></span><span class="preprocessor">#define TEV_DTMF_6 (6)</span>
<a name="l00093"></a>00093 <span class="preprocessor"></span><span class="preprocessor">#define TEV_DTMF_7 (7)</span>
<a name="l00094"></a>00094 <span class="preprocessor"></span><span class="preprocessor">#define TEV_DTMF_8 (8)</span>
<a name="l00095"></a>00095 <span class="preprocessor"></span><span class="preprocessor">#define TEV_DTMF_9 (9)</span>
<a name="l00096"></a>00096 <span class="preprocessor"></span><span class="preprocessor">#define TEV_DTMF_STAR (10)</span>
<a name="l00097"></a>00097 <span class="preprocessor"></span><span class="preprocessor">#define TEV_DTMF_POUND (11)</span>
<a name="l00098"></a>00098 <span class="preprocessor"></span><span class="preprocessor">#define TEV_DTMF_A (12)</span>
<a name="l00099"></a>00099 <span class="preprocessor"></span><span class="preprocessor">#define TEV_DTMF_B (13)</span>
<a name="l00100"></a>00100 <span class="preprocessor"></span><span class="preprocessor">#define TEV_DTMF_C (14)</span>
<a name="l00101"></a>00101 <span class="preprocessor"></span><span class="preprocessor">#define TEV_DTMF_D (15)</span>
<a name="l00102"></a>00102 <span class="preprocessor"></span><span class="preprocessor">#define TEV_FLASH (16)</span>
<a name="l00103"></a>00103 <span class="preprocessor"></span>
<a name="l00104"></a>00104
<a name="l00105"></a>00105 <span class="preprocessor">#endif</span>
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