This file is indexed.

/usr/share/gtk-doc/html/gst-plugins-good-plugins-1.0/gst-plugins-good-plugins-rtprtxreceive.html is in gstreamer1.0-plugins-good-doc 1.10.4-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>rtprtxreceive: GStreamer Good Plugins 1.0 Plugins Reference Manual</title>
<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
<link rel="home" href="index.html" title="GStreamer Good Plugins 1.0 Plugins Reference Manual">
<link rel="up" href="ch01.html" title="gst-plugins-good Elements">
<link rel="prev" href="gst-plugins-good-plugins-rtprtxqueue.html" title="rtprtxqueue">
<link rel="next" href="gst-plugins-good-plugins-rtprtxsend.html" title="rtprtxsend">
<meta name="generator" content="GTK-Doc V1.25 (XML mode)">
<link rel="stylesheet" href="style.css" type="text/css">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle">
<td width="100%" align="left" class="shortcuts">
<a href="#" class="shortcut">Top</a><span id="nav_description">  <span class="dim">|</span> 
                  <a href="#gst-plugins-good-plugins-rtprtxreceive.description" class="shortcut">Description</a></span><span id="nav_hierarchy">  <span class="dim">|</span> 
                  <a href="#gst-plugins-good-plugins-rtprtxreceive.object-hierarchy" class="shortcut">Object Hierarchy</a></span><span id="nav_properties">  <span class="dim">|</span> 
                  <a href="#gst-plugins-good-plugins-rtprtxreceive.properties" class="shortcut">Properties</a></span>
</td>
<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td>
<td><a accesskey="u" href="ch01.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td>
<td><a accesskey="p" href="gst-plugins-good-plugins-rtprtxqueue.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td>
<td><a accesskey="n" href="gst-plugins-good-plugins-rtprtxsend.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td>
</tr></table>
<div class="refentry">
<a name="gst-plugins-good-plugins-rtprtxreceive"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gst-plugins-good-plugins-rtprtxreceive.top_of_page"></a>rtprtxreceive</span></h2>
<p>rtprtxreceive</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-rtprtxreceive.properties"></a><h2>Properties</h2>
<div class="informaltable"><table class="informaltable" 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"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-rtprtxreceive.html#GstRtpRtxReceive--num-rtx-requests" title="The “num-rtx-requests” property">num-rtx-requests</a></td>
<td class="property_flags">Read</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-rtprtxreceive.html#GstRtpRtxReceive--num-rtx-packets" title="The “num-rtx-packets” property">num-rtx-packets</a></td>
<td class="property_flags">Read</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-rtprtxreceive.html#GstRtpRtxReceive--num-rtx-assoc-packets" title="The “num-rtx-assoc-packets” property">num-rtx-assoc-packets</a></td>
<td class="property_flags">Read</td>
</tr>
<tr>
<td class="property_type">
<a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstStructure.html#GstStructure-struct"><span class="type">GstStructure</span></a> *</td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-rtprtxreceive.html#GstRtpRtxReceive--payload-type-map" title="The “payload-type-map” property">payload-type-map</a></td>
<td class="property_flags">Read / Write</td>
</tr>
</tbody>
</table></div>
</div>
<a name="GstRtpRtxReceive"></a><div class="refsect1">
<a name="gst-plugins-good-plugins-rtprtxreceive.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" 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="gst-plugins-good-plugins-rtprtxreceive.html#GstRtpRtxReceive-struct" title="struct GstRtpRtxReceive">GstRtpRtxReceive</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-rtprtxreceive.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen">    <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject-struct">GObject</a>
    <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
        <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstObject.html#GstObject-struct">GstObject</a>
            <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#GstElement-struct">GstElement</a>
                <span class="lineart">╰──</span> GstRtpRtxReceive
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-rtprtxreceive.description"></a><h2>Description</h2>
<p>The receiver will listen to the custom retransmission events from the
downstream jitterbuffer and will remember the SSRC1 of the stream and
seqnum that was requested. When it sees a packet with one of the stored
seqnum, it associates the SSRC2 of the stream with the SSRC1 of the
master stream. From then it knows that SSRC2 is the retransmission
stream of SSRC1. This algorithm is stated in RFC 4588. For this
algorithm to work, RFC4588 also states that no two pending retransmission
requests can exist for the same seqnum and different SSRCs or else it
would be impossible to associate the retransmission with the original
requester SSRC.
When the RTX receiver has associated the retransmission packets,
it can depayload and forward them to the source pad of the element.
RTX is SSRC-multiplexed. See <a class="link" href="gst-plugins-good-plugins-rtprtxsend.html#GstRtpRtxSend"><span class="type">GstRtpRtxSend</span></a></p>
<div class="refsect2">
<a name="id-1.2.201.7.3"></a><h3>Example pipelines</h3>
<div class="informalexample">
  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
    <tbody>
      <tr>
        <td class="listing_lines" align="right"><pre>1
2
3
4
5
6</pre></td>
        <td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> rtpsession name<span class="gtkdoc opt">=</span>rtpsession \
        audiotestsrc <span class="gtkdoc opt">!</span> speexenc <span class="gtkdoc opt">!</span> rtpspeexpay pt<span class="gtkdoc opt">=</span><span class="number">97</span> <span class="gtkdoc opt">!</span> rtprtxsend rtx<span class="gtkdoc opt">-</span>payload<span class="gtkdoc opt">-</span>type<span class="gtkdoc opt">=</span><span class="number">99</span> <span class="gtkdoc opt">!</span> \
            identity drop<span class="gtkdoc opt">-</span>probability<span class="gtkdoc opt">=</span><span class="number">0.1</span> <span class="gtkdoc opt">!</span> rtpsession<span class="gtkdoc opt">.</span>send_rtp_sink \
            rtpsession<span class="gtkdoc opt">.</span>send_rtp_src <span class="gtkdoc opt">!</span> udpsink host<span class="gtkdoc opt">=</span><span class="string">&quot;127.0.0.1&quot;</span> port<span class="gtkdoc opt">=</span><span class="number">5000</span> \
        udpsrc port<span class="gtkdoc opt">=</span><span class="number">5001</span> <span class="gtkdoc opt">!</span> rtpsession<span class="gtkdoc opt">.</span>recv_rtcp_sink \
        rtpsession<span class="gtkdoc opt">.</span>send_rtcp_src <span class="gtkdoc opt">!</span> udpsink host<span class="gtkdoc opt">=</span><span class="string">&quot;127.0.0.1&quot;</span> port<span class="gtkdoc opt">=</span><span class="number">5002</span> sync<span class="gtkdoc opt">=</span><span class="keyword">false</span> async<span class="gtkdoc opt">=</span><span class="keyword">false</span></pre></td>
      </tr>
    </tbody>
  </table>
</div>
 Send audio stream through port 5000. (5001 and 5002 are just the rtcp link with the receiver)
<div class="informalexample">
  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
    <tbody>
      <tr>
        <td class="listing_lines" align="right"><pre>1
2
3
4
5
6
7</pre></td>
        <td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> rtpsession name<span class="gtkdoc opt">=</span>rtpsession \
        udpsrc port<span class="gtkdoc opt">=</span><span class="number">5000</span> caps<span class="gtkdoc opt">=</span><span class="string">&quot;application/x-rtp,media=(string)audio,clock-rate=(int)44100,encoding-name=(string)SPEEX,encoding-params=(string)1,octet-align=(string)1&quot;</span> <span class="gtkdoc opt">!</span> \
            rtpsession<span class="gtkdoc opt">.</span>recv_rtp_sink \
            rtpsession<span class="gtkdoc opt">.</span>recv_rtp_src <span class="gtkdoc opt">!</span> rtprtxreceive rtx<span class="gtkdoc opt">-</span>payload<span class="gtkdoc opt">-</span>types<span class="gtkdoc opt">=</span><span class="string">&quot;99&quot;</span> <span class="gtkdoc opt">!</span> rtpjitterbuffer <span class="keyword">do</span><span class="gtkdoc opt">-</span>retransmission<span class="gtkdoc opt">=</span><span class="keyword">true</span> <span class="gtkdoc opt">!</span> rtpspeexdepay <span class="gtkdoc opt">!</span> \
            speexdec <span class="gtkdoc opt">!</span> audioconvert <span class="gtkdoc opt">!</span> autoaudiosink \
        rtpsession<span class="gtkdoc opt">.</span>send_rtcp_src <span class="gtkdoc opt">!</span> udpsink host<span class="gtkdoc opt">=</span><span class="string">&quot;127.0.0.1&quot;</span> port<span class="gtkdoc opt">=</span><span class="number">5001</span> \
        udpsrc port<span class="gtkdoc opt">=</span><span class="number">5002</span> <span class="gtkdoc opt">!</span> rtpsession<span class="gtkdoc opt">.</span>recv_rtcp_sink sync<span class="gtkdoc opt">=</span>fakse async<span class="gtkdoc opt">=</span><span class="keyword">false</span></pre></td>
      </tr>
    </tbody>
  </table>
</div>
 Receive audio stream from port 5000. (5001 and 5002 are just the rtcp link with the sender)
On sender side make sure to use a different payload type for the stream and
its associated retransmission stream (see <a class="link" href="gst-plugins-good-plugins-rtprtxsend.html#GstRtpRtxSend"><span class="type">GstRtpRtxSend</span></a>). Note that several retransmission streams can
have the same payload type so this is not deterministic. Actually the
rtprtxreceiver element does the association using seqnum values.
On receiver side set all the retransmission payload types (Those informations are retrieve
through SDP).
You should still hear a clear sound when setting drop-probability to something greater than 0.
The rtpjitterbuffer will generate a custom upstream event GstRTPRetransmissionRequest when
it assumes that one packet is missing. Then this request is translated to a FB NACK in the rtcp link
Finally the rtpsession of the sender side re-convert it in a GstRTPRetransmissionRequest that will
be handle by rtprtxsend.
When increasing this value it may be possible that even the retransmission stream would be dropped
so the receiver will ask to resend the packets again and again until it actually receive them.
If the value is too high the rtprtxsend will not be able to retrieve the packet in its list of
stored packets. For learning purpose you could try to increase the max-size-packets or max-size-time
rtprtxsender's properties.
Also note that you should use rtprtxsend through rtpbin and its set-aux-send property. See <a class="link" href="gst-plugins-good-plugins-rtpbin.html#GstRtpBin"><span class="type">GstRtpBin</span></a>.
<div class="informalexample">
  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
    <tbody>
      <tr>
        <td class="listing_lines" align="right"><pre>1
2
3
4
5
6
7
8
9
10
11
12</pre></td>
        <td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> rtpsession name<span class="gtkdoc opt">=</span>rtpsession0 \
        audiotestsrc wave<span class="gtkdoc opt">=</span><span class="number">0</span> <span class="gtkdoc opt">!</span> speexenc <span class="gtkdoc opt">!</span> rtpspeexpay pt<span class="gtkdoc opt">=</span><span class="number">97</span> <span class="gtkdoc opt">!</span> rtprtxsend rtx<span class="gtkdoc opt">-</span>payload<span class="gtkdoc opt">-</span>type<span class="gtkdoc opt">=</span><span class="number">99</span> seqnum<span class="gtkdoc opt">-</span>offset<span class="gtkdoc opt">=</span><span class="number">1</span> <span class="gtkdoc opt">!</span> \
            identity drop<span class="gtkdoc opt">-</span>probability<span class="gtkdoc opt">=</span><span class="number">0.1</span> <span class="gtkdoc opt">!</span> rtpsession0<span class="gtkdoc opt">.</span>send_rtp_sink \
            rtpsession0<span class="gtkdoc opt">.</span>send_rtp_src <span class="gtkdoc opt">!</span> udpsink host<span class="gtkdoc opt">=</span><span class="string">&quot;127.0.0.1&quot;</span> port<span class="gtkdoc opt">=</span><span class="number">5000</span> \
        udpsrc port<span class="gtkdoc opt">=</span><span class="number">5001</span> <span class="gtkdoc opt">!</span> rtpsession0<span class="gtkdoc opt">.</span>recv_rtcp_sink \
        rtpsession0<span class="gtkdoc opt">.</span>send_rtcp_src <span class="gtkdoc opt">!</span> udpsink host<span class="gtkdoc opt">=</span><span class="string">&quot;127.0.0.1&quot;</span> port<span class="gtkdoc opt">=</span><span class="number">5002</span> sync<span class="gtkdoc opt">=</span><span class="keyword">false</span> async<span class="gtkdoc opt">=</span><span class="keyword">false</span> \
               rtpsession name<span class="gtkdoc opt">=</span>rtpsession1 \
        audiotestsrc wave<span class="gtkdoc opt">=</span><span class="number">0</span> <span class="gtkdoc opt">!</span> speexenc <span class="gtkdoc opt">!</span> rtpspeexpay pt<span class="gtkdoc opt">=</span><span class="number">97</span> <span class="gtkdoc opt">!</span> rtprtxsend rtx<span class="gtkdoc opt">-</span>payload<span class="gtkdoc opt">-</span>type<span class="gtkdoc opt">=</span><span class="number">99</span> seqnum<span class="gtkdoc opt">-</span>offset<span class="gtkdoc opt">=</span><span class="number">10</span> <span class="gtkdoc opt">!</span> \
            identity drop<span class="gtkdoc opt">-</span>probability<span class="gtkdoc opt">=</span><span class="number">0.1</span> <span class="gtkdoc opt">!</span> rtpsession1<span class="gtkdoc opt">.</span>send_rtp_sink \
            rtpsession1<span class="gtkdoc opt">.</span>send_rtp_src <span class="gtkdoc opt">!</span> udpsink host<span class="gtkdoc opt">=</span><span class="string">&quot;127.0.0.1&quot;</span> port<span class="gtkdoc opt">=</span><span class="number">5000</span> \
        udpsrc port<span class="gtkdoc opt">=</span><span class="number">5004</span> <span class="gtkdoc opt">!</span> rtpsession1<span class="gtkdoc opt">.</span>recv_rtcp_sink \
        rtpsession1<span class="gtkdoc opt">.</span>send_rtcp_src <span class="gtkdoc opt">!</span> udpsink host<span class="gtkdoc opt">=</span><span class="string">&quot;127.0.0.1&quot;</span> port<span class="gtkdoc opt">=</span><span class="number">5002</span> sync<span class="gtkdoc opt">=</span><span class="keyword">false</span> async<span class="gtkdoc opt">=</span><span class="keyword">false</span></pre></td>
      </tr>
    </tbody>
  </table>
</div>
 Send two audio streams to port 5000.
<div class="informalexample">
  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
    <tbody>
      <tr>
        <td class="listing_lines" align="right"><pre>1
2
3
4
5
6
7
8</pre></td>
        <td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> rtpsession name<span class="gtkdoc opt">=</span>rtpsession
        udpsrc port<span class="gtkdoc opt">=</span><span class="number">5000</span> caps<span class="gtkdoc opt">=</span><span class="string">&quot;application/x-rtp,media=(string)audio,clock-rate=(int)44100,encoding-name=(string)SPEEX,encoding-params=(string)1,octet-align=(string)1&quot;</span> <span class="gtkdoc opt">!</span> \
            rtpsession<span class="gtkdoc opt">.</span>recv_rtp_sink \
            rtpsession<span class="gtkdoc opt">.</span>recv_rtp_src <span class="gtkdoc opt">!</span> rtprtxreceive rtx<span class="gtkdoc opt">-</span>payload<span class="gtkdoc opt">-</span>types<span class="gtkdoc opt">=</span><span class="string">&quot;99&quot;</span> <span class="gtkdoc opt">!</span> rtpssrcdemux name<span class="gtkdoc opt">=</span>demux \
            demux<span class="gtkdoc opt">. !</span> queue <span class="gtkdoc opt">!</span> rtpjitterbuffer <span class="keyword">do</span><span class="gtkdoc opt">-</span>retransmission<span class="gtkdoc opt">=</span><span class="keyword">true</span> <span class="gtkdoc opt">!</span> rtpspeexdepay <span class="gtkdoc opt">!</span> speexdec <span class="gtkdoc opt">!</span> audioconvert <span class="gtkdoc opt">!</span> autoaudiosink \
            demux<span class="gtkdoc opt">. !</span> queue <span class="gtkdoc opt">!</span> rtpjitterbuffer <span class="keyword">do</span><span class="gtkdoc opt">-</span>retransmission<span class="gtkdoc opt">=</span><span class="keyword">true</span> <span class="gtkdoc opt">!</span> rtpspeexdepay <span class="gtkdoc opt">!</span> speexdec <span class="gtkdoc opt">!</span> audioconvert <span class="gtkdoc opt">!</span> autoaudiosink \
        rtpsession<span class="gtkdoc opt">.</span>send_rtcp_src <span class="gtkdoc opt">! !</span> tee name<span class="gtkdoc opt">=</span>t <span class="gtkdoc opt">!</span> queue <span class="gtkdoc opt">!</span> udpsink host<span class="gtkdoc opt">=</span><span class="string">&quot;127.0.0.1&quot;</span> port<span class="gtkdoc opt">=</span><span class="number">5001</span> t<span class="gtkdoc opt">. !</span> queue <span class="gtkdoc opt">!</span> udpsink host<span class="gtkdoc opt">=</span><span class="string">&quot;127.0.0.1&quot;</span> port<span class="gtkdoc opt">=</span><span class="number">5004</span> \
        udpsrc port<span class="gtkdoc opt">=</span><span class="number">5002</span> <span class="gtkdoc opt">!</span> rtpsession<span class="gtkdoc opt">.</span>recv_rtcp_sink sync<span class="gtkdoc opt">=</span>fakse async<span class="gtkdoc opt">=</span><span class="keyword">false</span></pre></td>
      </tr>
    </tbody>
  </table>
</div>
 Receive audio stream from port 5000.
On sender side the two streams have the same payload type for master streams, Same about retransmission streams.
The streams are sent to the network through two distincts sessions.
But we need to set a different seqnum-offset to make sure their seqnum navigate at a different rate like in concrete cases.
We could also choose the same seqnum offset but we would require to set a different initial seqnum value.
This is also why the rtprtxreceive can succeed to do the association between master and retransmission stream.
On receiver side the same session is used to receive the two streams. So the rtpssrcdemux is here to demultiplex
those two streams. The rtprtxreceive is responsible for reconstructing the original packets from the two retransmission streams.
You can play with the drop-probability value for one or both streams.
You should hear a clear sound. (after a few seconds the two streams wave feel synchronized)
</div>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="id-1.2.201.7.4.1"></a><h3>Element Information</h3>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">plugin</span></p></td>
<td>
            <a class="link" href="gst-plugins-good-plugins-plugin-rtpmanager.html#plugin-rtpmanager">rtpmanager</a>
          </td>
</tr>
<tr>
<td><p><span class="term">author</span></p></td>
<td>Julien Isorce &lt;julien.isorce@collabora.co.uk&gt;</td>
</tr>
<tr>
<td><p><span class="term">class</span></p></td>
<td>Codec</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="id-1.2.201.7.4.2"></a><h3>Element Pads</h3>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">name</span></p></td>
<td>sink</td>
</tr>
<tr>
<td><p><span class="term">direction</span></p></td>
<td>sink</td>
</tr>
<tr>
<td><p><span class="term">presence</span></p></td>
<td>always</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>application/x-rtp</td>
</tr>
</tbody>
</table></div>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">name</span></p></td>
<td>src</td>
</tr>
<tr>
<td><p><span class="term">direction</span></p></td>
<td>source</td>
</tr>
<tr>
<td><p><span class="term">presence</span></p></td>
<td>always</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>application/x-rtp</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-rtprtxreceive.functions_details"></a><h2>Functions</h2>
<p></p>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-rtprtxreceive.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstRtpRtxReceive-struct"></a><h3>struct GstRtpRtxReceive</h3>
<pre class="programlisting">struct GstRtpRtxReceive;</pre>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-rtprtxreceive.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GstRtpRtxReceive--num-rtx-requests"></a><h3>The <code class="literal">“num-rtx-requests”</code> property</h3>
<pre class="programlisting">  “num-rtx-requests”         <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></pre>
<p>Number of retransmission events received.</p>
<p>Flags: Read</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstRtpRtxReceive--num-rtx-packets"></a><h3>The <code class="literal">“num-rtx-packets”</code> property</h3>
<pre class="programlisting">  “num-rtx-packets”          <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></pre>
<p> Number of retransmission packets received.</p>
<p>Flags: Read</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstRtpRtxReceive--num-rtx-assoc-packets"></a><h3>The <code class="literal">“num-rtx-assoc-packets”</code> property</h3>
<pre class="programlisting">  “num-rtx-assoc-packets”    <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></pre>
<p>Number of retransmission packets correctly associated with retransmission requests.</p>
<p>Flags: Read</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstRtpRtxReceive--payload-type-map"></a><h3>The <code class="literal">“payload-type-map”</code> property</h3>
<pre class="programlisting">  “payload-type-map”         <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstStructure.html#GstStructure-struct"><span class="type">GstStructure</span></a> *</pre>
<p>Map of original payload types to their retransmission payload types.</p>
<p>Flags: Read / Write</p>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-rtprtxreceive.see-also"></a><h2>See Also</h2>
<p>rtprtxsend, rtpsession, rtpjitterbuffer</p>
</div>
</div>
<div class="footer">
<hr>Generated by GTK-Doc V1.25</div>
</body>
</html>