This file is indexed.

/usr/share/doc/gstreamer0.10-doc/gstreamer-libs-0.10/GstControlSource.html is in gstreamer0.10-doc 0.10.36-1.2ubuntu3.

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
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>GstControlSource</title>
<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
<link rel="home" href="index.html" title="GStreamer 0.10 Library Reference Manual">
<link rel="up" href="gstreamer-control.html" title="GStreamer Dynamic Parameter Control">
<link rel="prev" href="GstController.html" title="GstController">
<link rel="next" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource">
<meta name="generator" content="GTK-Doc V1.18 (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="2">
<tr valign="middle">
<td><a accesskey="p" href="GstController.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td>
<td><a accesskey="u" href="gstreamer-control.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></a></td>
<td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td>
<th width="100%" align="center">GStreamer 0.10 Library Reference Manual</th>
<td><a accesskey="n" href="GstInterpolationControlSource.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td>
</tr>
<tr><td colspan="5" class="shortcuts">
<a href="#GstControlSource.synopsis" class="shortcut">Top</a>
                   | 
                  <a href="#GstControlSource.description" class="shortcut">Description</a>
                   | 
                  <a href="#GstControlSource.object-hierarchy" class="shortcut">Object Hierarchy</a>
</td></tr>
</table>
<div class="refentry">
<a name="GstControlSource"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="GstControlSource.top_of_page"></a>GstControlSource</span></h2>
<p>GstControlSource — base class for control source sources</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<a name="GstControlSource.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
#include &lt;libs/controller/gstcontrolsource.h&gt;

struct              <a class="link" href="GstControlSource.html#GstControlSource-struct" title="struct GstControlSource">GstControlSource</a>;
struct              <a class="link" href="GstControlSource.html#GstControlSourceClass" title="struct GstControlSourceClass">GstControlSourceClass</a>;
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            (<a class="link" href="GstControlSource.html#GstControlSourceBind" title="GstControlSourceBind ()">*GstControlSourceBind</a>)             (<em class="parameter"><code><a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> *self</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> *pspec</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            (<a class="link" href="GstControlSource.html#GstControlSourceGetValue" title="GstControlSourceGetValue ()">*GstControlSourceGetValue</a>)         (<em class="parameter"><code><a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> *self</code></em>,
                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> timestamp</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue"><span class="type">GValue</span></a> *value</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            (<a class="link" href="GstControlSource.html#GstControlSourceGetValueArray" title="GstControlSourceGetValueArray ()">*GstControlSourceGetValueArray</a>)    (<em class="parameter"><code><a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> *self</code></em>,
                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> timestamp</code></em>,
                                                         <em class="parameter"><code><a class="link" href="GstControlSource.html#GstValueArray" title="struct GstValueArray"><span class="type">GstValueArray</span></a> *value_array</code></em>);
struct              <a class="link" href="GstControlSource.html#GstTimedValue" title="struct GstTimedValue">GstTimedValue</a>;
struct              <a class="link" href="GstControlSource.html#GstValueArray" title="struct GstValueArray">GstValueArray</a>;
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="GstControlSource.html#gst-control-source-bind" title="gst_control_source_bind ()">gst_control_source_bind</a>             (<em class="parameter"><code><a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> *self</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> *pspec</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="GstControlSource.html#gst-control-source-get-value" title="gst_control_source_get_value ()">gst_control_source_get_value</a>        (<em class="parameter"><code><a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> *self</code></em>,
                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> timestamp</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue"><span class="type">GValue</span></a> *value</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="GstControlSource.html#gst-control-source-get-value-array" title="gst_control_source_get_value_array ()">gst_control_source_get_value_array</a>  (<em class="parameter"><code><a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> *self</code></em>,
                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> timestamp</code></em>,
                                                         <em class="parameter"><code><a class="link" href="GstControlSource.html#GstValueArray" title="struct GstValueArray"><span class="type">GstValueArray</span></a> *value_array</code></em>);
</pre>
</div>
<div class="refsect1">
<a name="GstControlSource.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
  <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject">GObject</a>
   +----GstControlSource
         +----<a class="link" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource">GstInterpolationControlSource</a>
         +----<a class="link" href="GstLFOControlSource.html" title="GstLFOControlSource">GstLFOControlSource</a>
</pre>
</div>
<div class="refsect1">
<a name="GstControlSource.description"></a><h2>Description</h2>
<p>
The <a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> is a base class for control value sources that could
be used by <a class="link" href="GstController.html" title="GstController"><span class="type">GstController</span></a> to get timestamp-value pairs.
</p>
<p>
A <a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> is used by first getting an instance, binding it to a
<a href="/usr/share/gtk-doc/html/gobject/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> (for example by using <a class="link" href="GstController.html#gst-controller-set-control-source" title="gst_controller_set_control_source ()"><code class="function">gst_controller_set_control_source()</code></a>) and
then by having it used by the <a class="link" href="GstController.html" title="GstController"><span class="type">GstController</span></a> or calling
<a class="link" href="GstControlSource.html#gst-control-source-get-value" title="gst_control_source_get_value ()"><code class="function">gst_control_source_get_value()</code></a> or <a class="link" href="GstControlSource.html#gst-control-source-get-value-array" title="gst_control_source_get_value_array ()"><code class="function">gst_control_source_get_value_array()</code></a>.
</p>
<p>
For implementing a new <a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> one has to implement a
<a class="link" href="GstControlSource.html#GstControlSourceBind" title="GstControlSourceBind ()"><span class="type">GstControlSourceBind</span></a> method, which will depending on the <a href="/usr/share/gtk-doc/html/gobject/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> set up
the control source for use and sets the <a class="link" href="GstControlSource.html#GstControlSourceGetValue" title="GstControlSourceGetValue ()"><span class="type">GstControlSourceGetValue</span></a> and
<a class="link" href="GstControlSource.html#GstControlSourceGetValueArray" title="GstControlSourceGetValueArray ()"><span class="type">GstControlSourceGetValueArray</span></a> functions. These are then used by
<a class="link" href="GstControlSource.html#gst-control-source-get-value" title="gst_control_source_get_value ()"><code class="function">gst_control_source_get_value()</code></a> or <a class="link" href="GstControlSource.html#gst-control-source-get-value-array" title="gst_control_source_get_value_array ()"><code class="function">gst_control_source_get_value_array()</code></a>
to get values for specific timestamps.
</p>
</div>
<div class="refsect1">
<a name="GstControlSource.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="GstControlSource-struct"></a><h3>struct GstControlSource</h3>
<pre class="programlisting">struct GstControlSource {
  GstControlSourceGetValue get_value;             /* Returns the value for a property at a given timestamp */
  GstControlSourceGetValueArray get_value_array;  /* Returns values for a property in a given timespan */
};
</pre>
<p>
The instance structure of <a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><a class="link" href="GstControlSource.html#GstControlSourceGetValue" title="GstControlSourceGetValue ()"><span class="type">GstControlSourceGetValue</span></a> <em class="structfield"><code><a name="GstControlSource-struct.get-value"></a>get_value</code></em>;</span></p></td>
<td>Function for returning a value for a given timestamp</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="GstControlSource.html#GstControlSourceGetValueArray" title="GstControlSourceGetValueArray ()"><span class="type">GstControlSourceGetValueArray</span></a> <em class="structfield"><code><a name="GstControlSource-struct.get-value-array"></a>get_value_array</code></em>;</span></p></td>
<td>Function for returning a <a class="link" href="GstControlSource.html#GstValueArray" title="struct GstValueArray"><span class="type">GstValueArray</span></a> for a given timestamp</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GstControlSourceClass"></a><h3>struct GstControlSourceClass</h3>
<pre class="programlisting">struct GstControlSourceClass {
  GObjectClass parent_class;
  
  GstControlSourceBind bind;  /* Binds the GstControlSource to a specific GParamSpec */
};
</pre>
<p>
The class structure of <a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObjectClass"><span class="type">GObjectClass</span></a> <em class="structfield"><code><a name="GstControlSourceClass.parent-class"></a>parent_class</code></em>;</span></p></td>
<td>Parent class</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="GstControlSource.html#GstControlSourceBind" title="GstControlSourceBind ()"><span class="type">GstControlSourceBind</span></a> <em class="structfield"><code><a name="GstControlSourceClass.bind"></a>bind</code></em>;</span></p></td>
<td>Class method for binding the <a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> to a specific GParamSpec</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GstControlSourceBind"></a><h3>GstControlSourceBind ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            (*GstControlSourceBind)             (<em class="parameter"><code><a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> *self</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> *pspec</code></em>);</pre>
<p>
Function for binding a <a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> to a <a href="/usr/share/gtk-doc/html/gobject/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>self</code></em> :</span></p></td>
<td>the <a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> instance</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>pspec</code></em> :</span></p></td>
<td>
<a href="/usr/share/gtk-doc/html/gobject/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> that should be bound to</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the property could be bound to the <a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a>, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwise.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GstControlSourceGetValue"></a><h3>GstControlSourceGetValue ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            (*GstControlSourceGetValue)         (<em class="parameter"><code><a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> *self</code></em>,
                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> timestamp</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>
Function for returning a value for a given timestamp.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>self</code></em> :</span></p></td>
<td>the <a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> instance</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>timestamp</code></em> :</span></p></td>
<td>timestamp for which a value should be calculated</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue"><span class="type">GValue</span></a> which will be set to the result. It must be initialized to the correct type.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the value was successfully calculated.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GstControlSourceGetValueArray"></a><h3>GstControlSourceGetValueArray ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            (*GstControlSourceGetValueArray)    (<em class="parameter"><code><a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> *self</code></em>,
                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> timestamp</code></em>,
                                                         <em class="parameter"><code><a class="link" href="GstControlSource.html#GstValueArray" title="struct GstValueArray"><span class="type">GstValueArray</span></a> *value_array</code></em>);</pre>
<p>
Function for returning a <a class="link" href="GstControlSource.html#GstValueArray" title="struct GstValueArray"><span class="type">GstValueArray</span></a> for a given timestamp.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>self</code></em> :</span></p></td>
<td>the <a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> instance</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>timestamp</code></em> :</span></p></td>
<td>timestamp for which a value should be calculated</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>value_array</code></em> :</span></p></td>
<td>array to put control-values in</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the values were successfully calculated.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GstTimedValue"></a><h3>struct GstTimedValue</h3>
<pre class="programlisting">struct GstTimedValue {
  GstClockTime timestamp;
  GValue value;
};
</pre>
<p>
Structure for saving a timestamp and a value.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> <em class="structfield"><code><a name="GstTimedValue.timestamp"></a>timestamp</code></em>;</span></p></td>
<td>timestamp of the value change</td>
</tr>
<tr>
<td><p><span class="term"><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue"><span class="type">GValue</span></a> <em class="structfield"><code><a name="GstTimedValue.value"></a>value</code></em>;</span></p></td>
<td>the corresponding value</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GstValueArray"></a><h3>struct GstValueArray</h3>
<pre class="programlisting">struct GstValueArray {
  const gchar *property_name;
  gint nbsamples;
  GstClockTime sample_interval;
  gpointer *values;
};
</pre>
<p>
Structure to receive multiple values at once.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term">const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="GstValueArray.property-name"></a>property_name</code></em>;</span></p></td>
<td>the name of the property this array belongs to</td>
</tr>
<tr>
<td><p><span class="term"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> <em class="structfield"><code><a name="GstValueArray.nbsamples"></a>nbsamples</code></em>;</span></p></td>
<td>number of samples requested</td>
</tr>
<tr>
<td><p><span class="term"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> <em class="structfield"><code><a name="GstValueArray.sample-interval"></a>sample_interval</code></em>;</span></p></td>
<td>interval between each sample</td>
</tr>
<tr>
<td><p><span class="term"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> *<em class="structfield"><code><a name="GstValueArray.values"></a>values</code></em>;</span></p></td>
<td>pointer to the array</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gst-control-source-bind"></a><h3>gst_control_source_bind ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            gst_control_source_bind             (<em class="parameter"><code><a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> *self</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> *pspec</code></em>);</pre>
<p>
Binds a <a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> to a specific property. This must be called only once for a
<a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>self</code></em> :</span></p></td>
<td>the <a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>pspec</code></em> :</span></p></td>
<td>
<a href="/usr/share/gtk-doc/html/gobject/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> for the property for which this <a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> should generate values.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the <a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> was bound correctly, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwise.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gst-control-source-get-value"></a><h3>gst_control_source_get_value ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            gst_control_source_get_value        (<em class="parameter"><code><a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> *self</code></em>,
                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> timestamp</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>
Gets the value for this <a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> at a given timestamp.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>self</code></em> :</span></p></td>
<td>the <a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>timestamp</code></em> :</span></p></td>
<td>the time for which the value should be returned</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>the value</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>FALSE if the value couldn't be returned, TRUE otherwise.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gst-control-source-get-value-array"></a><h3>gst_control_source_get_value_array ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            gst_control_source_get_value_array  (<em class="parameter"><code><a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> *self</code></em>,
                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> timestamp</code></em>,
                                                         <em class="parameter"><code><a class="link" href="GstControlSource.html#GstValueArray" title="struct GstValueArray"><span class="type">GstValueArray</span></a> *value_array</code></em>);</pre>
<p>
Gets an array of values for one element property.
</p>
<p>
All fields of <em class="parameter"><code>value_array</code></em> must be filled correctly. Especially the
<em class="parameter"><code>value_array-&gt;values</code></em> array must be big enough to keep the requested amount
of values.
</p>
<p>
The type of the values in the array is the same as the property's type.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>self</code></em> :</span></p></td>
<td>the <a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>timestamp</code></em> :</span></p></td>
<td>the time that should be processed</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>value_array</code></em> :</span></p></td>
<td>array to put control-values in</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the given array could be filled, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwise</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="footer">
<hr>
          Generated by GTK-Doc V1.18</div>
</body>
</html>