group__osip__sdp.html

关于OSIP协议栈开发的一个很有用的东东～～～

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          <td class="md" nowrap valign="top"> int sdp_connection_init           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top"><a class="el" href="structsdp__connection.html">sdp_connection_t</a> **&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>elem</em>          </td>
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Allocate a connection element. <dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td></td><td valign=top><em>elem</em>&nbsp;</td><td>The element to work on. </td></tr>
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<a class="anchor" name="ga12" doxytag="sdp_message.h::sdp_key_free" ></a><p>
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          <td class="md" nowrap valign="top"> void sdp_key_free           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top"><a class="el" href="structsdp__key.html">sdp_key_t</a> *&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>elem</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
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<p>
Free a key element. <dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td></td><td valign=top><em>elem</em>&nbsp;</td><td>The element to work on. </td></tr>
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<a class="anchor" name="ga11" doxytag="sdp_message.h::sdp_key_init" ></a><p>
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          <td class="md" nowrap valign="top"> int sdp_key_init           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top"><a class="el" href="structsdp__key.html">sdp_key_t</a> **&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>elem</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
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<p>
Allocate a key element. <dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td></td><td valign=top><em>elem</em>&nbsp;</td><td>The element to work on. </td></tr>
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<a class="anchor" name="ga18" doxytag="sdp_message.h::sdp_media_free" ></a><p>
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          <td class="md" nowrap valign="top"> void sdp_media_free           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top"><a class="el" href="structsdp__media.html">sdp_media_t</a> *&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>elem</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
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Free a media element. <dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td></td><td valign=top><em>elem</em>&nbsp;</td><td>The element to work on. </td></tr>
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<a class="anchor" name="ga17" doxytag="sdp_message.h::sdp_media_init" ></a><p>
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          <td class="md" nowrap valign="top"> int sdp_media_init           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top"><a class="el" href="structsdp__media.html">sdp_media_t</a> **&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>elem</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
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<p>
Allocate a media element. <dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td></td><td valign=top><em>elem</em>&nbsp;</td><td>The element to work on. </td></tr>
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<a class="anchor" name="ga66" doxytag="sdp_message.h::sdp_message_a_att_field_get" ></a><p>
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          <td class="md" nowrap valign="top"> char* sdp_message_a_att_field_get           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top"><a class="el" href="structsdp__message.html">sdp_message_t</a> *&nbsp;</td>
          <td class="mdname" nowrap> <em>sdp</em>, </td>
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          <td class="md" nowrap align="right"></td>
          <td></td>
          <td class="md" nowrap>int&nbsp;</td>
          <td class="mdname" nowrap> <em>pos_media</em>, </td>
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          <td class="md" nowrap>int&nbsp;</td>
          <td class="mdname" nowrap> <em>pos</em></td>
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          <td class="md">)&nbsp;</td>
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<p>
Get the attribute name ('a' field) of a SDP packet. <dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td></td><td valign=top><em>sdp</em>&nbsp;</td><td>The element to work on. </td></tr>
    <tr><td></td><td valign=top><em>pos_media</em>&nbsp;</td><td>The media line number. </td></tr>
    <tr><td></td><td valign=top><em>pos</em>&nbsp;</td><td>The attribute line number. </td></tr>
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<a class="anchor" name="ga67" doxytag="sdp_message.h::sdp_message_a_att_value_get" ></a><p>
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          <td class="md" nowrap valign="top"> char* sdp_message_a_att_value_get           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top"><a class="el" href="structsdp__message.html">sdp_message_t</a> *&nbsp;</td>
          <td class="mdname" nowrap> <em>sdp</em>, </td>
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          <td class="md" nowrap align="right"></td>
          <td></td>
          <td class="md" nowrap>int&nbsp;</td>
          <td class="mdname" nowrap> <em>pos_media</em>, </td>
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          <td class="md" nowrap align="right"></td>
          <td></td>
          <td class="md" nowrap>int&nbsp;</td>
          <td class="mdname" nowrap> <em>pos</em></td>
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          <td class="md">)&nbsp;</td>
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<p>
Get the attribute value ('a' field) of a SDP packet. <dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td></td><td valign=top><em>sdp</em>&nbsp;</td><td>The element to work on. </td></tr>
    <tr><td></td><td valign=top><em>pos_media</em>&nbsp;</td><td>The media line number. </td></tr>
    <tr><td></td><td valign=top><em>pos</em>&nbsp;</td><td>The attribute line number. </td></tr>
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<a class="anchor" name="ga63" doxytag="sdp_message.h::sdp_message_a_attribute_add" ></a><p>
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          <td class="md" nowrap valign="top"> int sdp_message_a_attribute_add           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top"><a class="el" href="structsdp__message.html">sdp_message_t</a> *&nbsp;</td>
          <td class="mdname" nowrap> <em>sdp</em>, </td>
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          <td class="md" nowrap align="right"></td>
          <td></td>
          <td class="md" nowrap>int&nbsp;</td>