group__osip__sdp.html

关于OSIP协议栈开发的一个很有用的东东～～～

          <td class="mdname" nowrap> <em>pos_media</em>, </td>
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          <td class="md" nowrap>char *&nbsp;</td>
          <td class="mdname" nowrap> <em>att_field</em>, </td>
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          <td class="md" nowrap align="right"></td>
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          <td class="md" nowrap>char *&nbsp;</td>
          <td class="mdname" nowrap> <em>att_value</em></td>
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          <td class="md">)&nbsp;</td>
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<p>
Set the version in a SDP packet. <dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <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 line number. </td></tr>
    <tr><td></td><td valign=top><em>att_field</em>&nbsp;</td><td>The token value. </td></tr>
    <tr><td></td><td valign=top><em>att_value</em>&nbsp;</td><td>The token value. </td></tr>
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<a class="anchor" name="ga64" doxytag="sdp_message.h::sdp_message_a_attribute_del" ></a><p>
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          <td class="md" nowrap valign="top"> int sdp_message_a_attribute_del           </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>
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          <td class="md" nowrap>char *&nbsp;</td>
          <td class="mdname" nowrap> <em>att_field</em></td>
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          <td class="md">)&nbsp;</td>
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<p>
delete all attribute fields specified by att_field. <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 line number. </td></tr>
    <tr><td></td><td valign=top><em>att_field</em>&nbsp;</td><td>The value to remove. </td></tr>
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<a class="anchor" name="ga65" doxytag="sdp_message.h::sdp_message_attribute_get" ></a><p>
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          <td class="md" nowrap valign="top"> <a class="el" href="structsdp__attribute.html">sdp_attribute_t</a>* sdp_message_attribute_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 one of the attribute ('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="ga49" doxytag="sdp_message.h::sdp_message_b_bandwidth_add" ></a><p>
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          <td class="md" nowrap valign="top"> int sdp_message_b_bandwidth_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>
          <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>char *&nbsp;</td>
          <td class="mdname" nowrap> <em>bwtype</em>, </td>
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          <td class="md" nowrap align="right"></td>
          <td></td>
          <td class="md" nowrap>char *&nbsp;</td>
          <td class="mdname" nowrap> <em>bandwidth</em></td>
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          <td class="md">)&nbsp;</td>
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<p>
Set the version in a SDP packet. <dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <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>bwtype</em>&nbsp;</td><td>The token value. </td></tr>
    <tr><td></td><td valign=top><em>bandwidth</em>&nbsp;</td><td>The token value. </td></tr>
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<a class="anchor" name="ga52" doxytag="sdp_message.h::sdp_message_b_bandwidth_get" ></a><p>
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          <td class="md" nowrap valign="top"> char* sdp_message_b_bandwidth_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>
          <td class="md" colspan="2"></td>
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<p>
Get the bandwidth value ('b' field) of a SDP packet. <dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <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 index in the bandwidth element list.. </td></tr>
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<a class="anchor" name="ga51" doxytag="sdp_message.h::sdp_message_b_bwtype_get" ></a><p>
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          <td class="md" nowrap valign="top"> char* sdp_message_b_bwtype_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></td>
          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"></td>
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