1<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 2<html> 3<head> 4<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 5<title>gstavprotocol: GStreamer libav 1.0 Plugins Reference Manual</title> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="index.html" title="GStreamer libav 1.0 Plugins Reference Manual"> 8<link rel="up" href="ch01.html" title="gst-libav Base and Support classes"> 9<link rel="prev" href="gst-libav-plugins-gstavcodecmap.html" title="gstavcodecmap"> 10<link rel="next" href="gst-libav-plugins-gstavutils.html" title="gstavutils"> 11<meta name="generator" content="GTK-Doc V1.28 (XML mode)"> 12<link rel="stylesheet" href="style.css" type="text/css"> 13</head> 14<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 15<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle"> 16<td width="100%" align="left" class="shortcuts"> 17<a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span> 18 <a href="#gst-libav-plugins-gstavprotocol.description" class="shortcut">Description</a></span> 19</td> 20<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td> 21<td><a accesskey="u" href="ch01.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td> 22<td><a accesskey="p" href="gst-libav-plugins-gstavcodecmap.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td> 23<td><a accesskey="n" href="gst-libav-plugins-gstavutils.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td> 24</tr></table> 25<div class="refentry"> 26<a name="gst-libav-plugins-gstavprotocol"></a><div class="titlepage"></div> 27<div class="refnamediv"><table width="100%"><tr> 28<td valign="top"> 29<h2><span class="refentrytitle"><a name="gst-libav-plugins-gstavprotocol.top_of_page"></a>gstavprotocol</span></h2> 30<p>gstavprotocol</p> 31</td> 32<td class="gallery_image" valign="top" align="right"></td> 33</tr></table></div> 34<div class="refsect1"> 35<a name="gst-libav-plugins-gstavprotocol.functions"></a><h2>Functions</h2> 36<div class="informaltable"><table class="informaltable" width="100%" border="0"> 37<colgroup> 38<col width="150px" class="functions_return"> 39<col class="functions_name"> 40</colgroup> 41<tbody> 42<tr> 43<td class="define_keyword">#define</td> 44<td class="function_name"> 45<a class="link" href="gst-libav-plugins-gstavprotocol.html#GST-FFMPEG-PIPE-MUTEX-LOCK:CAPS" title="GST_FFMPEG_PIPE_MUTEX_LOCK()">GST_FFMPEG_PIPE_MUTEX_LOCK</a><span class="c_punctuation">()</span> 46</td> 47</tr> 48<tr> 49<td class="define_keyword">#define</td> 50<td class="function_name"> 51<a class="link" href="gst-libav-plugins-gstavprotocol.html#GST-FFMPEG-PIPE-MUTEX-UNLOCK:CAPS" title="GST_FFMPEG_PIPE_MUTEX_UNLOCK()">GST_FFMPEG_PIPE_MUTEX_UNLOCK</a><span class="c_punctuation">()</span> 52</td> 53</tr> 54<tr> 55<td class="define_keyword">#define</td> 56<td class="function_name"> 57<a class="link" href="gst-libav-plugins-gstavprotocol.html#GST-FFMPEG-PIPE-WAIT:CAPS" title="GST_FFMPEG_PIPE_WAIT()">GST_FFMPEG_PIPE_WAIT</a><span class="c_punctuation">()</span> 58</td> 59</tr> 60<tr> 61<td class="define_keyword">#define</td> 62<td class="function_name"> 63<a class="link" href="gst-libav-plugins-gstavprotocol.html#GST-FFMPEG-PIPE-SIGNAL:CAPS" title="GST_FFMPEG_PIPE_SIGNAL()">GST_FFMPEG_PIPE_SIGNAL</a><span class="c_punctuation">()</span> 64</td> 65</tr> 66<tr> 67<td class="function_type"> 68<span class="returnvalue">int</span> 69</td> 70<td class="function_name"> 71<a class="link" href="gst-libav-plugins-gstavprotocol.html#gst-ffmpeg-pipe-open" title="gst_ffmpeg_pipe_open ()">gst_ffmpeg_pipe_open</a> <span class="c_punctuation">()</span> 72</td> 73</tr> 74<tr> 75<td class="function_type"> 76<span class="returnvalue">int</span> 77</td> 78<td class="function_name"> 79<a class="link" href="gst-libav-plugins-gstavprotocol.html#gst-ffmpeg-pipe-close" title="gst_ffmpeg_pipe_close ()">gst_ffmpeg_pipe_close</a> <span class="c_punctuation">()</span> 80</td> 81</tr> 82<tr> 83<td class="function_type"> 84<span class="returnvalue">int</span> 85</td> 86<td class="function_name"> 87<a class="link" href="gst-libav-plugins-gstavprotocol.html#gst-ffmpegdata-open" title="gst_ffmpegdata_open ()">gst_ffmpegdata_open</a> <span class="c_punctuation">()</span> 88</td> 89</tr> 90<tr> 91<td class="function_type"> 92<span class="returnvalue">int</span> 93</td> 94<td class="function_name"> 95<a class="link" href="gst-libav-plugins-gstavprotocol.html#gst-ffmpegdata-close" title="gst_ffmpegdata_close ()">gst_ffmpegdata_close</a> <span class="c_punctuation">()</span> 96</td> 97</tr> 98</tbody> 99</table></div> 100</div> 101<div class="refsect1"> 102<a name="gst-libav-plugins-gstavprotocol.other"></a><h2>Types and Values</h2> 103<div class="informaltable"><table class="informaltable" width="100%" border="0"> 104<colgroup> 105<col width="150px" class="name"> 106<col class="description"> 107</colgroup> 108<tbody><tr> 109<td class="datatype_keyword">struct</td> 110<td class="function_name"><a class="link" href="gst-libav-plugins-gstavprotocol.html#GstFFMpegPipe" title="struct GstFFMpegPipe">GstFFMpegPipe</a></td> 111</tr></tbody> 112</table></div> 113</div> 114<div class="refsect1"> 115<a name="gst-libav-plugins-gstavprotocol.description"></a><h2>Description</h2> 116</div> 117<div class="refsect1"> 118<a name="gst-libav-plugins-gstavprotocol.functions_details"></a><h2>Functions</h2> 119<div class="refsect2"> 120<a name="GST-FFMPEG-PIPE-MUTEX-LOCK:CAPS"></a><h3>GST_FFMPEG_PIPE_MUTEX_LOCK()</h3> 121<pre class="programlisting">#define GST_FFMPEG_PIPE_MUTEX_LOCK(m)</pre> 122</div> 123<hr> 124<div class="refsect2"> 125<a name="GST-FFMPEG-PIPE-MUTEX-UNLOCK:CAPS"></a><h3>GST_FFMPEG_PIPE_MUTEX_UNLOCK()</h3> 126<pre class="programlisting">#define GST_FFMPEG_PIPE_MUTEX_UNLOCK(m)</pre> 127</div> 128<hr> 129<div class="refsect2"> 130<a name="GST-FFMPEG-PIPE-WAIT:CAPS"></a><h3>GST_FFMPEG_PIPE_WAIT()</h3> 131<pre class="programlisting">#define GST_FFMPEG_PIPE_WAIT(m)</pre> 132</div> 133<hr> 134<div class="refsect2"> 135<a name="GST-FFMPEG-PIPE-SIGNAL:CAPS"></a><h3>GST_FFMPEG_PIPE_SIGNAL()</h3> 136<pre class="programlisting">#define GST_FFMPEG_PIPE_SIGNAL(m)</pre> 137</div> 138<hr> 139<div class="refsect2"> 140<a name="gst-ffmpeg-pipe-open"></a><h3>gst_ffmpeg_pipe_open ()</h3> 141<pre class="programlisting"><span class="returnvalue">int</span> 142gst_ffmpeg_pipe_open (<em class="parameter"><code><a class="link" href="gst-libav-plugins-gstavprotocol.html#GstFFMpegPipe" title="struct GstFFMpegPipe"><span class="type">GstFFMpegPipe</span></a> *ffpipe</code></em>, 143 <em class="parameter"><code><span class="type">int</span> flags</code></em>, 144 <em class="parameter"><code><span class="type">AVIOContext</span> **context</code></em>);</pre> 145</div> 146<hr> 147<div class="refsect2"> 148<a name="gst-ffmpeg-pipe-close"></a><h3>gst_ffmpeg_pipe_close ()</h3> 149<pre class="programlisting"><span class="returnvalue">int</span> 150gst_ffmpeg_pipe_close (<em class="parameter"><code><span class="type">AVIOContext</span> *h</code></em>);</pre> 151</div> 152<hr> 153<div class="refsect2"> 154<a name="gst-ffmpegdata-open"></a><h3>gst_ffmpegdata_open ()</h3> 155<pre class="programlisting"><span class="returnvalue">int</span> 156gst_ffmpegdata_open (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstPad.html#GstPad-struct"><span class="type">GstPad</span></a> *pad</code></em>, 157 <em class="parameter"><code><span class="type">int</span> flags</code></em>, 158 <em class="parameter"><code><span class="type">AVIOContext</span> **context</code></em>);</pre> 159</div> 160<hr> 161<div class="refsect2"> 162<a name="gst-ffmpegdata-close"></a><h3>gst_ffmpegdata_close ()</h3> 163<pre class="programlisting"><span class="returnvalue">int</span> 164gst_ffmpegdata_close (<em class="parameter"><code><span class="type">AVIOContext</span> *h</code></em>);</pre> 165</div> 166</div> 167<div class="refsect1"> 168<a name="gst-libav-plugins-gstavprotocol.other_details"></a><h2>Types and Values</h2> 169<div class="refsect2"> 170<a name="GstFFMpegPipe"></a><h3>struct GstFFMpegPipe</h3> 171<pre class="programlisting">struct GstFFMpegPipe { 172 /* lock for syncing */ 173 GMutex tlock; 174 /* with TLOCK */ 175 /* signals counterpart thread to have a look */ 176 GCond cond; 177 /* seen eos */ 178 gboolean eos; 179 /* flowreturn obtained by src task */ 180 GstFlowReturn srcresult; 181 /* adpater collecting data */ 182 GstAdapter *adapter; 183 /* amount needed in adapter by src task */ 184 guint needed; 185}; 186</pre> 187</div> 188</div> 189</div> 190<div class="footer"> 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