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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Farstream Reference Manual: FsStreamTransmitter</title>
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<a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span> 
                  <a href="#FsStreamTransmitter.description" class="shortcut">Description</a></span><span id="nav_hierarchy"> <span class="dim">|</span> 
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                  <a href="#FsStreamTransmitter.signals" class="shortcut">Signals</a></span>
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<td><a accesskey="u" href="ch04.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td>
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<div class="refentry">
<a name="FsStreamTransmitter"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="FsStreamTransmitter.top_of_page"></a>FsStreamTransmitter</span></h2>
<p>FsStreamTransmitter — A stream transmitter object used to convey per-stream
  information to a transmitter.</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="FsStreamTransmitter.functions"></a><h2>Functions</h2>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="FsStreamTransmitter.html#fs-stream-transmitter-add-remote-candidates" title="fs_stream_transmitter_add_remote_candidates ()">fs_stream_transmitter_add_remote_candidates</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="FsStreamTransmitter.html#fs-stream-transmitter-gather-local-candidates" title="fs_stream_transmitter_gather_local_candidates ()">fs_stream_transmitter_gather_local_candidates</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="FsStreamTransmitter.html#fs-stream-transmitter-force-remote-candidates" title="fs_stream_transmitter_force_remote_candidates ()">fs_stream_transmitter_force_remote_candidates</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="FsStreamTransmitter.html#fs-stream-transmitter-stop" title="fs_stream_transmitter_stop ()">fs_stream_transmitter_stop</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="FsStreamTransmitter.html#fs-stream-transmitter-emit-error" title="fs_stream_transmitter_emit_error ()">fs_stream_transmitter_emit_error</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="FsStreamTransmitter.html#fs-stream-parse-component-state-changed" title="fs_stream_parse_component_state_changed ()">fs_stream_parse_component_state_changed</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="FsStreamTransmitter.html#fs-stream-parse-local-candidates-prepared" title="fs_stream_parse_local_candidates_prepared ()">fs_stream_parse_local_candidates_prepared</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="FsStreamTransmitter.html#fs-stream-parse-new-active-candidate-pair" title="fs_stream_parse_new_active_candidate_pair ()">fs_stream_parse_new_active_candidate_pair</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="FsStreamTransmitter.html#fs-stream-parse-new-local-candidate" title="fs_stream_parse_new_local_candidate ()">fs_stream_parse_new_local_candidate</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="FsStreamTransmitter.html#fs-stream-parse-recv-codecs-changed" title="fs_stream_parse_recv_codecs_changed ()">fs_stream_parse_recv_codecs_changed</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="FsStreamTransmitter.properties"></a><h2>Properties</h2>
<div class="informaltable"><table border="0">
<colgroup>
<col width="150px" class="properties_type">
<col width="300px" class="properties_name">
<col width="200px" class="properties_flags">
</colgroup>
<tbody>
<tr>
<td class="property_type"><span class="type">gboolean</span></td>
<td class="property_name"><a class="link" href="FsStreamTransmitter.html#FsStreamTransmitter--associate-on-source" title="The “associate-on-source” property">associate-on-source</a></td>
<td class="property_flags">Read / Write / Construct Only</td>
</tr>
<tr>
<td class="property_type">
<span class="type">FsCandidateList</span> *</td>
<td class="property_name"><a class="link" href="FsStreamTransmitter.html#FsStreamTransmitter--preferred-local-candidates" title="The “preferred-local-candidates” property">preferred-local-candidates</a></td>
<td class="property_flags">Read / Write / Construct Only</td>
</tr>
<tr>
<td class="property_type"><span class="type">gboolean</span></td>
<td class="property_name"><a class="link" href="FsStreamTransmitter.html#FsStreamTransmitter--sending" title="The “sending” property">sending</a></td>
<td class="property_flags">Read / Write</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="FsStreamTransmitter.signals"></a><h2>Signals</h2>
<div class="informaltable"><table border="0">
<colgroup>
<col width="150px" class="signals_return">
<col width="300px" class="signals_name">
<col width="200px" class="signals_flags">
</colgroup>
<tbody>
<tr>
<td class="signal_type"><span class="returnvalue">void</span></td>
<td class="signal_name"><a class="link" href="FsStreamTransmitter.html#FsStreamTransmitter-error" title="The “error” signal">error</a></td>
<td class="signal_flags">Run Last</td>
</tr>
<tr>
<td class="signal_type"><span class="returnvalue">void</span></td>
<td class="signal_name"><a class="link" href="FsStreamTransmitter.html#FsStreamTransmitter-known-source-packet-received" title="The “known-source-packet-received” signal">known-source-packet-received</a></td>
<td class="signal_flags">Run Last</td>
</tr>
<tr>
<td class="signal_type"><span class="returnvalue">void</span></td>
<td class="signal_name"><a class="link" href="FsStreamTransmitter.html#FsStreamTransmitter-local-candidates-prepared" title="The “local-candidates-prepared” signal">local-candidates-prepared</a></td>
<td class="signal_flags">Run Last</td>
</tr>
<tr>
<td class="signal_type"><span class="returnvalue">void</span></td>
<td class="signal_name"><a class="link" href="FsStreamTransmitter.html#FsStreamTransmitter-new-active-candidate-pair" title="The “new-active-candidate-pair” signal">new-active-candidate-pair</a></td>
<td class="signal_flags">Run Last</td>
</tr>
<tr>
<td class="signal_type"><span class="returnvalue">void</span></td>
<td class="signal_name"><a class="link" href="FsStreamTransmitter.html#FsStreamTransmitter-new-local-candidate" title="The “new-local-candidate” signal">new-local-candidate</a></td>
<td class="signal_flags">Run Last</td>
</tr>
<tr>
<td class="signal_type"><span class="returnvalue">void</span></td>
<td class="signal_name"><a class="link" href="FsStreamTransmitter.html#FsStreamTransmitter-state-changed" title="The “state-changed” signal">state-changed</a></td>
<td class="signal_flags">Run Last</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="FsStreamTransmitter.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody>
<tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="FsStreamTransmitter.html#FsStreamTransmitter-struct" title="struct FsStreamTransmitter">FsStreamTransmitter</a></td>
</tr>
<tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="FsStreamTransmitter.html#FsStreamTransmitterClass" title="struct FsStreamTransmitterClass">FsStreamTransmitterClass</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="FsStreamTransmitter.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen">    GObject
    <span class="lineart">╰──</span> FsStreamTransmitter
</pre>
</div>
<div class="refsect1">
<a name="FsStreamTransmitter.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include &lt;farstream/fs-transmitter.h&gt;
</pre>
</div>
<div class="refsect1">
<a name="FsStreamTransmitter.description"></a><h2>Description</h2>
<p>This object is the base implementation of a Farstream Stream Transmitter.
It needs to be derived and implement by a Farstream transmitter.
A Farstream Stream transmitter is used to convery per-stream information
to a transmitter, this is mostly local and remote candidates</p>
</div>
<div class="refsect1">
<a name="FsStreamTransmitter.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="fs-stream-transmitter-add-remote-candidates"></a><h3>fs_stream_transmitter_add_remote_candidates ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
fs_stream_transmitter_add_remote_candidates
                               (<em class="parameter"><code><a class="link" href="FsStreamTransmitter.html" title="FsStreamTransmitter"><span class="type">FsStreamTransmitter</span></a> *streamtransmitter</code></em>,
                                <em class="parameter"><code><span class="type">GList</span> *candidates</code></em>,
                                <em class="parameter"><code><span class="type">GError</span> **error</code></em>);</pre>
<p>This function is used to add remote candidates to the transmitter</p>
<div class="refsect3">
<a name="id-1.3.2.3.10.2.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>streamtransmitter</p></td>
<td class="parameter_description"><p>a <span class="type">FsStreamTranmitter</span></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>candidates</p></td>
<td class="parameter_description"><p> a <span class="type">GList</span> of the remote candidates. </p></td>
<td class="parameter_annotations"><span class="annotation">[<a href="http://foldoc.org/element-type"><span class="acronym">element-type</span></a> FsCandidate]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>error</p></td>
<td class="parameter_description"><p>location of a <span class="type">GError</span>, or NULL if no error occured</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.2.3.10.2.6"></a><h4>Returns</h4>
<p> TRUE of the candidate could be added, FALSE if it couldnt
(and the <span class="type">GError</span> will be set)</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="fs-stream-transmitter-gather-local-candidates"></a><h3>fs_stream_transmitter_gather_local_candidates ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
fs_stream_transmitter_gather_local_candidates
                               (<em class="parameter"><code><a class="link" href="FsStreamTransmitter.html" title="FsStreamTransmitter"><span class="type">FsStreamTransmitter</span></a> *streamtransmitter</code></em>,
                                <em class="parameter"><code><span class="type">GError</span> **error</code></em>);</pre>
<p>This function tells the transmitter to start gathering local candidates,
signals for new candidates and newly active candidates can be emitted
during the call to this function.</p>
<div class="refsect3">
<a name="id-1.3.2.3.10.3.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>streamtransmitter</p></td>
<td class="parameter_description"><p>a <a class="link" href="FsStreamTransmitter.html" title="FsStreamTransmitter"><span class="type">FsStreamTransmitter</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>error</p></td>
<td class="parameter_description"><p>location of a <span class="type">GErrorh</span>, or NULL if no error occured</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.2.3.10.3.6"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> if it succeeds (or is not implemented), <code class="literal">FALSE</code> otherwise</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="fs-stream-transmitter-force-remote-candidates"></a><h3>fs_stream_transmitter_force_remote_candidates ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
fs_stream_transmitter_force_remote_candidates
                               (<em class="parameter"><code><a class="link" href="FsStreamTransmitter.html" title="FsStreamTransmitter"><span class="type">FsStreamTransmitter</span></a> *streamtransmitter</code></em>,
                                <em class="parameter"><code><span class="type">GList</span> *remote_candidates</code></em>,
                                <em class="parameter"><code><span class="type">GError</span> **error</code></em>);</pre>
<p>This function forces data to be sent immediately to the selected remote
candidate, by-passing any connectivity checks. There should be at most
one candidate per component.</p>
<div class="refsect3">
<a name="id-1.3.2.3.10.4.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>streamtransmitter</p></td>
<td class="parameter_description"><p>a <a class="link" href="FsStreamTransmitter.html" title="FsStreamTransmitter"><span class="type">FsStreamTransmitter</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>remote_candidates</p></td>
<td class="parameter_description"><p> a <span class="type">GList</span> of <a class="link" href="farstream-libs-FsCandidate.html#FsCandidate" title="struct FsCandidate"><span class="type">FsCandidate</span></a> to
force. </p></td>
<td class="parameter_annotations"><span class="annotation">[<a href="http://foldoc.org/element-type"><span class="acronym">element-type</span></a> FsCandidate]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>error</p></td>
<td class="parameter_description"><p>location of a <span class="type">GError</span>, or NULL if no error occured</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.2.3.10.4.6"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> if the candidates could be forced, <code class="literal">FALSE</code> otherwise</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="fs-stream-transmitter-stop"></a><h3>fs_stream_transmitter_stop ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
fs_stream_transmitter_stop (<em class="parameter"><code><a class="link" href="FsStreamTransmitter.html" title="FsStreamTransmitter"><span class="type">FsStreamTransmitter</span></a> *streamtransmitter</code></em>);</pre>
<p>This functions stops the <a class="link" href="FsStreamTransmitter.html" title="FsStreamTransmitter"><span class="type">FsStreamTransmitter</span></a>, it must be called before
the last reference is dropped.</p>
<div class="refsect3">
<a name="id-1.3.2.3.10.5.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>streamtransmitter</p></td>
<td class="parameter_description"><p>a <a class="link" href="FsStreamTransmitter.html" title="FsStreamTransmitter"><span class="type">FsStreamTransmitter</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="fs-stream-transmitter-emit-error"></a><h3>fs_stream_transmitter_emit_error ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
fs_stream_transmitter_emit_error (<em class="parameter"><code><a class="link" href="FsStreamTransmitter.html" title="FsStreamTransmitter"><span class="type">FsStreamTransmitter</span></a> *streamtransmitter</code></em>,
                                  <em class="parameter"><code><span class="type">gint</span> error_no</code></em>,
                                  <em class="parameter"><code>const <span class="type">gchar</span> *error_msg</code></em>);</pre>
<p>This function emit the "error" signal on a <a class="link" href="FsStreamTransmitter.html" title="FsStreamTransmitter"><span class="type">FsStreamTransmitter</span></a>, it should
only be called by subclasses.</p>
<div class="refsect3">
<a name="id-1.3.2.3.10.6.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>streamtransmitter</p></td>
<td class="parameter_description"><p><a class="link" href="FsStreamTransmitter.html" title="FsStreamTransmitter"><span class="type">FsStreamTransmitter</span></a> on which to emit the error signal</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>error_no</p></td>
<td class="parameter_description"><p>The number of the error</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>error_msg</p></td>
<td class="parameter_description"><p>Error message (for the programmer)</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="fs-stream-parse-component-state-changed"></a><h3>fs_stream_parse_component_state_changed ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
fs_stream_parse_component_state_changed
                               (<em class="parameter"><code><a class="link" href="FsStream.html" title="FsStream"><span class="type">FsStream</span></a> *stream</code></em>,
                                <em class="parameter"><code><span class="type">GstMessage</span> *message</code></em>,
                                <em class="parameter"><code><span class="type">guint</span> *component</code></em>,
                                <em class="parameter"><code><a class="link" href="FsStream.html#FsStreamState" title="enum FsStreamState"><span class="type">FsStreamState</span></a> *state</code></em>);</pre>
<p>Parses a "farstream-component-state-changed" message and checks if it matches
the <em class="parameter"><code>stream</code></em>
 parameters.</p>
<div class="refsect3">
<a name="id-1.3.2.3.10.7.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>stream</p></td>
<td class="parameter_description"><p>a <a class="link" href="FsStream.html" title="FsStream"><span class="type">FsStream</span></a> to match against the message</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>message</p></td>
<td class="parameter_description"><p>a <span class="type">GstMessage</span> to parse</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>component</p></td>
<td class="parameter_description"><p> Returns the component from the <span class="type">GstMessage</span> if not <code class="literal">NULL</code>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<a href="http://foldoc.org/out"><span class="acronym">out</span></a>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>state</p></td>
<td class="parameter_description"><p> Returns the <a class="link" href="FsStream.html#FsStreamState" title="enum FsStreamState"><span class="type">FsStreamState</span></a> from the <span class="type">GstMessage</span> if not <code class="literal">NULL</code>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<a href="http://foldoc.org/out"><span class="acronym">out</span></a>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.2.3.10.7.6"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> if the message matches the stream and is valid.</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="fs-stream-parse-local-candidates-prepared"></a><h3>fs_stream_parse_local_candidates_prepared ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
fs_stream_parse_local_candidates_prepared
                               (<em class="parameter"><code><a class="link" href="FsStream.html" title="FsStream"><span class="type">FsStream</span></a> *stream</code></em>,
                                <em class="parameter"><code><span class="type">GstMessage</span> *message</code></em>);</pre>
<p>Parses a "farstream-local-candidates-prepared" message and checks if it matches
the <em class="parameter"><code>stream</code></em>
 parameters.</p>
<div class="refsect3">
<a name="id-1.3.2.3.10.8.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>stream</p></td>
<td class="parameter_description"><p>a <a class="link" href="FsStream.html" title="FsStream"><span class="type">FsStream</span></a> to match against the message</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>message</p></td>
<td class="parameter_description"><p>a <span class="type">GstMessage</span> to parse</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.2.3.10.8.6"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> if the message matches the stream and is valid.</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="fs-stream-parse-new-active-candidate-pair"></a><h3>fs_stream_parse_new_active_candidate_pair ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
fs_stream_parse_new_active_candidate_pair
                               (<em class="parameter"><code><a class="link" href="FsStream.html" title="FsStream"><span class="type">FsStream</span></a> *stream</code></em>,
                                <em class="parameter"><code><span class="type">GstMessage</span> *message</code></em>,
                                <em class="parameter"><code><a class="link" href="farstream-libs-FsCandidate.html#FsCandidate" title="struct FsCandidate"><span class="type">FsCandidate</span></a> **local_candidate</code></em>,
                                <em class="parameter"><code><a class="link" href="farstream-libs-FsCandidate.html#FsCandidate" title="struct FsCandidate"><span class="type">FsCandidate</span></a> **remote_candidate</code></em>);</pre>
<p>Parses a "farstream-new-active-candidate-pair" message and checks
if it matches the <em class="parameter"><code>stream</code></em>
 parameters.</p>
<div class="refsect3">
<a name="id-1.3.2.3.10.9.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>stream</p></td>
<td class="parameter_description"><p>a <a class="link" href="FsStream.html" title="FsStream"><span class="type">FsStream</span></a> to match against the message</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>message</p></td>
<td class="parameter_description"><p>a <span class="type">GstMessage</span> to parse</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>local_candidate</p></td>
<td class="parameter_description"><p> Returns the local <a class="link" href="farstream-libs-FsCandidate.html#FsCandidate" title="struct FsCandidate"><span class="type">FsCandidate</span></a> in
the message if not <code class="literal">NULL</code>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<a href="http://foldoc.org/out"><span class="acronym">out</span></a>][<a href="http://foldoc.org/transfer%20none"><span class="acronym">transfer none</span></a>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>remote_candidate</p></td>
<td class="parameter_description"><p> Returns the remote <a class="link" href="farstream-libs-FsCandidate.html#FsCandidate" title="struct FsCandidate"><span class="type">FsCandidate</span></a> in
the message if not <code class="literal">NULL</code>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<a href="http://foldoc.org/out"><span class="acronym">out</span></a>][<a href="http://foldoc.org/transfer%20none"><span class="acronym">transfer none</span></a>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.2.3.10.9.6"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> if the message matches the stream and is valid.</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="fs-stream-parse-new-local-candidate"></a><h3>fs_stream_parse_new_local_candidate ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
fs_stream_parse_new_local_candidate (<em class="parameter"><code><a class="link" href="FsStream.html" title="FsStream"><span class="type">FsStream</span></a> *stream</code></em>,
                                     <em class="parameter"><code><span class="type">GstMessage</span> *message</code></em>,
                                     <em class="parameter"><code><a class="link" href="farstream-libs-FsCandidate.html#FsCandidate" title="struct FsCandidate"><span class="type">FsCandidate</span></a> **candidate</code></em>);</pre>
<p>Parses a "farstream-new-local-candidate" message and checks if it matches
the <em class="parameter"><code>stream</code></em>
 parameters.</p>
<div class="refsect3">
<a name="id-1.3.2.3.10.10.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>stream</p></td>
<td class="parameter_description"><p>a <a class="link" href="FsStream.html" title="FsStream"><span class="type">FsStream</span></a> to match against the message</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>message</p></td>
<td class="parameter_description"><p>a <span class="type">GstMessage</span> to parse</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>candidate</p></td>
<td class="parameter_description"><p> Returns the <a class="link" href="farstream-libs-FsCandidate.html#FsCandidate" title="struct FsCandidate"><span class="type">FsCandidate</span></a> in the message
if not <code class="literal">NULL</code>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<a href="http://foldoc.org/out"><span class="acronym">out</span></a>][<a href="http://foldoc.org/transfer%20none"><span class="acronym">transfer none</span></a>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.2.3.10.10.6"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> if the message matches the stream and is valid.</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="fs-stream-parse-recv-codecs-changed"></a><h3>fs_stream_parse_recv_codecs_changed ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
fs_stream_parse_recv_codecs_changed (<em class="parameter"><code><a class="link" href="FsStream.html" title="FsStream"><span class="type">FsStream</span></a> *stream</code></em>,
                                     <em class="parameter"><code><span class="type">GstMessage</span> *message</code></em>,
                                     <em class="parameter"><code><span class="type">GList</span> **codecs</code></em>);</pre>
<p>Returns a <span class="type">GList</span> of <a class="link" href="farstream-libs-FsCodec.html#FsCodec" title="struct FsCodec"><span class="type">FsCodec</span></a> of the message if not <code class="literal">NULL</code></p>
<p>Parses a "farstream-recv-codecs-changed" message and checks if it matches
the <em class="parameter"><code>stream</code></em>
 parameters.</p>
<div class="refsect3">
<a name="id-1.3.2.3.10.11.6"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>stream</p></td>
<td class="parameter_description"><p>a <a class="link" href="FsStream.html" title="FsStream"><span class="type">FsStream</span></a> to match against the message</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>message</p></td>
<td class="parameter_description"><p>a <span class="type">GstMessage</span> to parse</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>codecs</p></td>
<td class="parameter_description"><p>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<a href="http://foldoc.org/out"><span class="acronym">out</span></a>][<a href="http://foldoc.org/transfer%20none"><span class="acronym">transfer none</span></a>][<a href="http://foldoc.org/element-type"><span class="acronym">element-type</span></a> FsCodec]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.3.2.3.10.11.7"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> if the message matches the stream and is valid.</p>
<p></p>
</div>
</div>
</div>
<div class="refsect1">
<a name="FsStreamTransmitter.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="FsStreamTransmitter-struct"></a><h3>struct FsStreamTransmitter</h3>
<pre class="programlisting">struct FsStreamTransmitter;</pre>
<p>All members are private, access them using methods and properties</p>
</div>
<hr>
<div class="refsect2">
<a name="FsStreamTransmitterClass"></a><h3>struct FsStreamTransmitterClass</h3>
<pre class="programlisting">struct FsStreamTransmitterClass {
  GObjectClass parent_class;

  /*virtual functions */
  gboolean (*add_remote_candidates) (FsStreamTransmitter *streamtransmitter,
                                     GList *candidates, GError **error);

  gboolean (*force_remote_candidates) (FsStreamTransmitter *streamtransmitter,
      GList *remote_candidates,
      GError **error);
  gboolean (*gather_local_candidates) (FsStreamTransmitter *streamtransmitter,
                                       GError **error);
  void (*stop) (FsStreamTransmitter *streamtransmitter);
};
</pre>
<p>You must override the add_remote_candidate in a subclass</p>
<div class="refsect3">
<a name="id-1.3.2.3.11.3.5"></a><h4>Members</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="300px" class="struct_members_name">
<col class="struct_members_description">
<col width="200px" class="struct_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="struct_member_name"><p><span class="type">GObjectClass</span> <em class="structfield"><code><a name="FsStreamTransmitterClass.parent-class"></a>parent_class</code></em>;</p></td>
<td class="struct_member_description"><p>Our parent</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="FsStreamTransmitterClass.add-remote-candidates"></a>add_remote_candidates</code></em> ()</p></td>
<td class="struct_member_description"><p>Sets the remote candidates</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="FsStreamTransmitterClass.force-remote-candidates"></a>force_remote_candidates</code></em> ()</p></td>
<td class="struct_member_description"><p>Forces certain remote candidates</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="FsStreamTransmitterClass.gather-local-candidates"></a>gather_local_candidates</code></em> ()</p></td>
<td class="struct_member_description"><p>Starts the gathering of local candidates</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="FsStreamTransmitterClass.stop"></a>stop</code></em> ()</p></td>
<td class="struct_member_description"><p>Stop the stream transmitter synchronously (does any Gst stopping
that needs to be done)</p></td>
<td class="struct_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="FsStreamTransmitter.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="FsStreamTransmitter--associate-on-source"></a><h3>The <code class="literal">“associate-on-source”</code> property</h3>
<pre class="programlisting">  “associate-on-source”      <span class="type">gboolean</span></pre>
<p>This tells the stream transmitter to associate incoming data with this
based on the source without looking at the content if possible.</p>
<p>Flags: Read / Write / Construct Only</p>
<p>Default value: TRUE</p>
</div>
<hr>
<div class="refsect2">
<a name="FsStreamTransmitter--preferred-local-candidates"></a><h3>The <code class="literal">“preferred-local-candidates”</code> property</h3>
<pre class="programlisting">  “preferred-local-candidates” <span class="type">FsCandidateList</span> *</pre>
<p>A GList of FsCandidates.</p>
<p>Flags: Read / Write / Construct Only</p>
</div>
<hr>
<div class="refsect2">
<a name="FsStreamTransmitter--sending"></a><h3>The <code class="literal">“sending”</code> property</h3>
<pre class="programlisting">  “sending”                  <span class="type">gboolean</span></pre>
<p>A network source <span class="type">GstElement</span> to be used by the <a class="link" href="FsSession.html" title="FsSession"><span class="type">FsSession</span></a></p>
<p>Flags: Read / Write</p>
<p>Default value: TRUE</p>
</div>
</div>
<div class="refsect1">
<a name="FsStreamTransmitter.signal-details"></a><h2>Signal Details</h2>
<div class="refsect2">
<a name="FsStreamTransmitter-error"></a><h3>The <code class="literal">“error”</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
user_function (<a class="link" href="FsStreamTransmitter.html" title="FsStreamTransmitter"><span class="type">FsStreamTransmitter</span></a> *self,
               <a class="link" href="FsConference.html#FsError" title="enum FsError"><span class="type">FsError</span></a>              errorno,
               <span class="type">gchar</span>               *error_msg,
               <span class="type">gpointer</span>             user_data)</pre>
<p>This signal is emitted in any error condition</p>
<div class="refsect3">
<a name="id-1.3.2.3.13.2.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>self</p></td>
<td class="parameter_description"><p><a class="link" href="FsStreamTransmitter.html" title="FsStreamTransmitter"><span class="type">FsStreamTransmitter</span></a> that emitted the signal</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>errorno</p></td>
<td class="parameter_description"><p>The number of the error</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>error_msg</p></td>
<td class="parameter_description"><p>Error message (for the programmer)</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data set when the signal handler was connected.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p>Flags: Run Last</p>
</div>
<hr>
<div class="refsect2">
<a name="FsStreamTransmitter-known-source-packet-received"></a><h3>The <code class="literal">“known-source-packet-received”</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
user_function (<a class="link" href="FsStreamTransmitter.html" title="FsStreamTransmitter"><span class="type">FsStreamTransmitter</span></a> *self,
               <span class="type">guint</span>                component,
               <span class="type">gpointer</span>             buffer,
               <span class="type">gpointer</span>             user_data)</pre>
<p>This signal is emitted when a buffer coming from a confirmed known source
is received.</p>
<div class="refsect3">
<a name="id-1.3.2.3.13.3.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>self</p></td>
<td class="parameter_description"><p><a class="link" href="FsStreamTransmitter.html" title="FsStreamTransmitter"><span class="type">FsStreamTransmitter</span></a> that emitted the signal</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>component</p></td>
<td class="parameter_description"><p>The Component on which this buffer was received</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>buffer</p></td>
<td class="parameter_description"><p>the <span class="type">GstBuffer</span> coming from the known source</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data set when the signal handler was connected.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p>Flags: Run Last</p>
</div>
<hr>
<div class="refsect2">
<a name="FsStreamTransmitter-local-candidates-prepared"></a><h3>The <code class="literal">“local-candidates-prepared”</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
user_function (<a class="link" href="FsStreamTransmitter.html" title="FsStreamTransmitter"><span class="type">FsStreamTransmitter</span></a> *self,
               <span class="type">gpointer</span>             user_data)</pre>
<p>This signal is emitted when all local candidates have been
prepared, an ICE implementation would send its SDP offer or answer.</p>
<div class="refsect3">
<a name="id-1.3.2.3.13.4.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>self</p></td>
<td class="parameter_description"><p><a class="link" href="FsStreamTransmitter.html" title="FsStreamTransmitter"><span class="type">FsStreamTransmitter</span></a> that emitted the signal</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data set when the signal handler was connected.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p>Flags: Run Last</p>
</div>
<hr>
<div class="refsect2">
<a name="FsStreamTransmitter-new-active-candidate-pair"></a><h3>The <code class="literal">“new-active-candidate-pair”</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
user_function (<a class="link" href="FsStreamTransmitter.html" title="FsStreamTransmitter"><span class="type">FsStreamTransmitter</span></a> *self,
               <a class="link" href="farstream-libs-FsCandidate.html#FsCandidate" title="struct FsCandidate"><span class="type">FsCandidate</span></a>         *local_candidate,
               <a class="link" href="farstream-libs-FsCandidate.html#FsCandidate" title="struct FsCandidate"><span class="type">FsCandidate</span></a>         *remote_candidate,
               <span class="type">gpointer</span>             user_data)</pre>
<p>This signal is emitted when there is a new active chandidate pair that has
been established. This is specially useful for ICE where the active
candidate pair can change automatically due to network conditions. The user
must not modify the candidates and must copy them if he wants to use them
outside the callback scope.</p>
<div class="refsect3">
<a name="id-1.3.2.3.13.5.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>self</p></td>
<td class="parameter_description"><p><a class="link" href="FsStreamTransmitter.html" title="FsStreamTransmitter"><span class="type">FsStreamTransmitter</span></a> that emitted the signal</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>local_candidate</p></td>
<td class="parameter_description"><p><a class="link" href="farstream-libs-FsCandidate.html#FsCandidate" title="struct FsCandidate"><span class="type">FsCandidate</span></a> of the local candidate being used</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>remote_candidate</p></td>
<td class="parameter_description"><p><a class="link" href="farstream-libs-FsCandidate.html#FsCandidate" title="struct FsCandidate"><span class="type">FsCandidate</span></a> of the remote candidate being used</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data set when the signal handler was connected.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p>Flags: Run Last</p>
</div>
<hr>
<div class="refsect2">
<a name="FsStreamTransmitter-new-local-candidate"></a><h3>The <code class="literal">“new-local-candidate”</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
user_function (<a class="link" href="FsStreamTransmitter.html" title="FsStreamTransmitter"><span class="type">FsStreamTransmitter</span></a> *self,
               <a class="link" href="farstream-libs-FsCandidate.html#FsCandidate" title="struct FsCandidate"><span class="type">FsCandidate</span></a>         *local_candidate,
               <span class="type">gpointer</span>             user_data)</pre>
<p>This signal is emitted when a new local candidate is discovered.</p>
<div class="refsect3">
<a name="id-1.3.2.3.13.6.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>self</p></td>
<td class="parameter_description"><p><a class="link" href="FsStream.html" title="FsStream"><span class="type">FsStream</span></a> that emitted the signal</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>local_candidate</p></td>
<td class="parameter_description"><p><a class="link" href="farstream-libs-FsCandidate.html#FsCandidate" title="struct FsCandidate"><span class="type">FsCandidate</span></a> of the local candidate</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data set when the signal handler was connected.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p>Flags: Run Last</p>
</div>
<hr>
<div class="refsect2">
<a name="FsStreamTransmitter-state-changed"></a><h3>The <code class="literal">“state-changed”</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
user_function (<a class="link" href="FsStreamTransmitter.html" title="FsStreamTransmitter"><span class="type">FsStreamTransmitter</span></a> *self,
               <span class="type">guint</span>                component,
               <a class="link" href="FsStream.html#FsStreamState" title="enum FsStreamState"><span class="type">FsStreamState</span></a>        state,
               <span class="type">gpointer</span>             user_data)</pre>
<p>This signal is emitted when the ICE state (or equivalent) of the component
changes</p>
<div class="refsect3">
<a name="id-1.3.2.3.13.7.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>self</p></td>
<td class="parameter_description"><p><a class="link" href="FsStreamTransmitter.html" title="FsStreamTransmitter"><span class="type">FsStreamTransmitter</span></a> that emitted the signal</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>component</p></td>
<td class="parameter_description"><p>the id of the component which state has changed</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>state</p></td>
<td class="parameter_description"><p>the new state of the component</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data set when the signal handler was connected.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p>Flags: Run Last</p>
</div>
</div>
</div>
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