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
|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>GstInterpolationControlSource</title>
<meta name="generator" content="DocBook XSL Stylesheets V1.75.2">
<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="GstControlSource.html" title="GstControlSource">
<link rel="next" href="GstLFOControlSource.html" title="GstLFOControlSource">
<meta name="generator" content="GTK-Doc V1.15 (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="GstControlSource.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="GstLFOControlSource.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td>
</tr>
<tr><td colspan="5" class="shortcuts">
<a href="#GstInterpolationControlSource.synopsis" class="shortcut">Top</a>
|
<a href="#GstInterpolationControlSource.description" class="shortcut">Description</a>
|
<a href="#GstInterpolationControlSource.object-hierarchy" class="shortcut">Object Hierarchy</a>
</td></tr>
</table>
<div class="refentry" title="GstInterpolationControlSource">
<a name="GstInterpolationControlSource"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="GstInterpolationControlSource.top_of_page"></a>GstInterpolationControlSource</span></h2>
<p>GstInterpolationControlSource — interpolation control source</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv" title="Synopsis">
<a name="GstInterpolationControlSource.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
#include <libs/controller/gstinterpolationcontrolsource.h>
<a class="link" href="GstInterpolationControlSource.html#GstInterpolationControlSource-struct" title="GstInterpolationControlSource">GstInterpolationControlSource</a>;
enum <a class="link" href="GstInterpolationControlSource.html#GstInterpolateMode" title="enum GstInterpolateMode">GstInterpolateMode</a>;
<a class="link" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="returnvalue">GstInterpolationControlSource</span></a> * <a class="link" href="GstInterpolationControlSource.html#gst-interpolation-control-source-new" title="gst_interpolation_control_source_new ()">gst_interpolation_control_source_new</a>
(<em class="parameter"><code><span class="type">void</span></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="GstInterpolationControlSource.html#gst-interpolation-control-source-set" title="gst_interpolation_control_source_set ()">gst_interpolation_control_source_set</a>
(<em class="parameter"><code><a class="link" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a> *self</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> timestamp</code></em>,
<em class="parameter"><code>const <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="GstInterpolationControlSource.html#gst-interpolation-control-source-set-from-list" title="gst_interpolation_control_source_set_from_list ()">gst_interpolation_control_source_set_from_list</a>
(<em class="parameter"><code><a class="link" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a> *self</code></em>,
<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Singly-Linked-Lists.html#GSList"><span class="type">GSList</span></a> *timedvalues</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="GstInterpolationControlSource.html#gst-interpolation-control-source-set-interpolation-mode" title="gst_interpolation_control_source_set_interpolation_mode ()">gst_interpolation_control_source_set_interpolation_mode</a>
(<em class="parameter"><code><a class="link" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a> *self</code></em>,
<em class="parameter"><code><a class="link" href="GstInterpolationControlSource.html#GstInterpolateMode" title="enum GstInterpolateMode"><span class="type">GstInterpolateMode</span></a> mode</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Doubly-Linked-Lists.html#GList"><span class="returnvalue">GList</span></a> * <a class="link" href="GstInterpolationControlSource.html#gst-interpolation-control-source-get-all" title="gst_interpolation_control_source_get_all ()">gst_interpolation_control_source_get_all</a>
(<em class="parameter"><code><a class="link" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a> *self</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="GstInterpolationControlSource.html#gst-interpolation-control-source-unset" title="gst_interpolation_control_source_unset ()">gst_interpolation_control_source_unset</a>
(<em class="parameter"><code><a class="link" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a> *self</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> timestamp</code></em>);
<span class="returnvalue">void</span> <a class="link" href="GstInterpolationControlSource.html#gst-interpolation-control-source-unset-all" title="gst_interpolation_control_source_unset_all ()">gst_interpolation_control_source_unset_all</a>
(<em class="parameter"><code><a class="link" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a> *self</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a> <a class="link" href="GstInterpolationControlSource.html#gst-interpolation-control-source-get-count" title="gst_interpolation_control_source_get_count ()">gst_interpolation_control_source_get_count</a>
(<em class="parameter"><code><a class="link" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a> *self</code></em>);
</pre>
</div>
<div class="refsect1" title="Object Hierarchy">
<a name="GstInterpolationControlSource.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>
+----<a class="link" href="GstControlSource.html" title="GstControlSource">GstControlSource</a>
+----GstInterpolationControlSource
</pre>
</div>
<div class="refsect1" title="Description">
<a name="GstInterpolationControlSource.description"></a><h2>Description</h2>
<p>
<a class="link" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a> is a <a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a>, that interpolates values between user-given
control points. It supports several interpolation modes and property types.
</p>
<p>
To use <a class="link" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a> get a new instance by calling
<a class="link" href="GstInterpolationControlSource.html#gst-interpolation-control-source-new" title="gst_interpolation_control_source_new ()"><code class="function">gst_interpolation_control_source_new()</code></a>, bind it to a <a href="/usr/share/gtk-doc/html/gobject/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a>, select a interpolation mode with
<a class="link" href="GstInterpolationControlSource.html#gst-interpolation-control-source-set-interpolation-mode" title="gst_interpolation_control_source_set_interpolation_mode ()"><code class="function">gst_interpolation_control_source_set_interpolation_mode()</code></a> and set some control points by calling
<a class="link" href="GstInterpolationControlSource.html#gst-interpolation-control-source-set" title="gst_interpolation_control_source_set ()"><code class="function">gst_interpolation_control_source_set()</code></a>.
</p>
<p>
All functions are MT-safe.
</p>
</div>
<div class="refsect1" title="Details">
<a name="GstInterpolationControlSource.details"></a><h2>Details</h2>
<div class="refsect2" title="GstInterpolationControlSource">
<a name="GstInterpolationControlSource-struct"></a><h3>GstInterpolationControlSource</h3>
<pre class="programlisting">typedef struct _GstInterpolationControlSource GstInterpolationControlSource;</pre>
<p>
The instance structure of <a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a>.
</p>
</div>
<hr>
<div class="refsect2" title="enum GstInterpolateMode">
<a name="GstInterpolateMode"></a><h3>enum GstInterpolateMode</h3>
<pre class="programlisting">typedef enum
{
GST_INTERPOLATE_NONE,
GST_INTERPOLATE_TRIGGER,
GST_INTERPOLATE_LINEAR,
GST_INTERPOLATE_QUADRATIC,
GST_INTERPOLATE_CUBIC,
GST_INTERPOLATE_USER
} GstInterpolateMode;
</pre>
<p>
The various interpolation modes available.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><a name="GST-INTERPOLATE-NONE:CAPS"></a><span class="term"><code class="literal">GST_INTERPOLATE_NONE</code></span></p></td>
<td>steps-like interpolation, default
</td>
</tr>
<tr>
<td><p><a name="GST-INTERPOLATE-TRIGGER:CAPS"></a><span class="term"><code class="literal">GST_INTERPOLATE_TRIGGER</code></span></p></td>
<td>returns the default value of the property,
except for times with specific values
</td>
</tr>
<tr>
<td><p><a name="GST-INTERPOLATE-LINEAR:CAPS"></a><span class="term"><code class="literal">GST_INTERPOLATE_LINEAR</code></span></p></td>
<td>linear interpolation
</td>
</tr>
<tr>
<td><p><a name="GST-INTERPOLATE-QUADRATIC:CAPS"></a><span class="term"><code class="literal">GST_INTERPOLATE_QUADRATIC</code></span></p></td>
<td>square interpolation (deprecated, maps to cubic)
</td>
</tr>
<tr>
<td><p><a name="GST-INTERPOLATE-CUBIC:CAPS"></a><span class="term"><code class="literal">GST_INTERPOLATE_CUBIC</code></span></p></td>
<td>cubic interpolation
</td>
</tr>
<tr>
<td><p><a name="GST-INTERPOLATE-USER:CAPS"></a><span class="term"><code class="literal">GST_INTERPOLATE_USER</code></span></p></td>
<td>user-provided interpolation (not yet available)
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="gst_interpolation_control_source_new ()">
<a name="gst-interpolation-control-source-new"></a><h3>gst_interpolation_control_source_new ()</h3>
<pre class="programlisting"><a class="link" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="returnvalue">GstInterpolationControlSource</span></a> * gst_interpolation_control_source_new
(<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>
This returns a new, unbound <a class="link" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a new, unbound <a class="link" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a>.
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="gst_interpolation_control_source_set ()">
<a name="gst-interpolation-control-source-set"></a><h3>gst_interpolation_control_source_set ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_interpolation_control_source_set
(<em class="parameter"><code><a class="link" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a> *self</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> timestamp</code></em>,
<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobject/gobject-Generic-values.html#GValue"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>
Set the value of given controller-handled property at a certain time.
</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="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a> object
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>timestamp</code></em> :</span></p></td>
<td>the time the control-change is scheduled for
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>the control-value
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> FALSE if the values couldn't be set, TRUE otherwise.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="gst_interpolation_control_source_set_from_list ()">
<a name="gst-interpolation-control-source-set-from-list"></a><h3>gst_interpolation_control_source_set_from_list ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_interpolation_control_source_set_from_list
(<em class="parameter"><code><a class="link" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a> *self</code></em>,
<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Singly-Linked-Lists.html#GSList"><span class="type">GSList</span></a> *timedvalues</code></em>);</pre>
<p>
Sets multiple timed values at once.
</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="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a> object
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>timedvalues</code></em> :</span></p></td>
<td>a list with <a class="link" href="GstControlSource.html#GstTimedValue" title="GstTimedValue"><span class="type">GstTimedValue</span></a> items
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> FALSE if the values couldn't be set, TRUE otherwise.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="gst_interpolation_control_source_set_interpolation_mode ()">
<a name="gst-interpolation-control-source-set-interpolation-mode"></a><h3>gst_interpolation_control_source_set_interpolation_mode ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_interpolation_control_source_set_interpolation_mode
(<em class="parameter"><code><a class="link" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a> *self</code></em>,
<em class="parameter"><code><a class="link" href="GstInterpolationControlSource.html#GstInterpolateMode" title="enum GstInterpolateMode"><span class="type">GstInterpolateMode</span></a> mode</code></em>);</pre>
<p>
Sets the given interpolation mode.
</p>
<p>
</p>
<div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Note</h3>
<p>User interpolation is not yet available and quadratic interpolation
is deprecated and maps to cubic interpolation.</p>
</div>
<p>
</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="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a> object
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>mode</code></em> :</span></p></td>
<td>interpolation mode
</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 interpolation mode could be set, <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" title="gst_interpolation_control_source_get_all ()">
<a name="gst-interpolation-control-source-get-all"></a><h3>gst_interpolation_control_source_get_all ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Doubly-Linked-Lists.html#GList"><span class="returnvalue">GList</span></a> * gst_interpolation_control_source_get_all
(<em class="parameter"><code><a class="link" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a> *self</code></em>);</pre>
<p>
Returns a read-only copy of the list of <a class="link" href="GstControlSource.html#GstTimedValue" title="GstTimedValue"><span class="type">GstTimedValue</span></a> for the given property.
Free the list after done with it.
</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="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a> to get the list from
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a copy of the list, or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if the property isn't handled by the controller
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="gst_interpolation_control_source_unset ()">
<a name="gst-interpolation-control-source-unset"></a><h3>gst_interpolation_control_source_unset ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gst_interpolation_control_source_unset
(<em class="parameter"><code><a class="link" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a> *self</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> timestamp</code></em>);</pre>
<p>
Used to remove the value of given controller-handled property at a certain
time.
</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="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a> object
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>timestamp</code></em> :</span></p></td>
<td>the time the control-change should be removed from
</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 unset (i.e. not found, TRUE otherwise.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="gst_interpolation_control_source_unset_all ()">
<a name="gst-interpolation-control-source-unset-all"></a><h3>gst_interpolation_control_source_unset_all ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gst_interpolation_control_source_unset_all
(<em class="parameter"><code><a class="link" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a> *self</code></em>);</pre>
<p>
Used to remove all time-stamped values of given controller-handled property
</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="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a> object
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="gst_interpolation_control_source_get_count ()">
<a name="gst-interpolation-control-source-get-count"></a><h3>gst_interpolation_control_source_get_count ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a> gst_interpolation_control_source_get_count
(<em class="parameter"><code><a class="link" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a> *self</code></em>);</pre>
<p>
Returns the number of control points that are set.
</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="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a> to get the number of values from
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the number of control points that are set.
</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="footer">
<hr>
Generated by GTK-Doc V1.15</div>
</body>
</html>
|
