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| <h2><span class="refentrytitle"><a name="GstSystemClock.top_of_page"></a>GstSystemClock</span></h2> |
| <p>GstSystemClock — Default clock that uses the current system time</p> |
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| </tr></table></div> |
| <div class="refsect1"> |
| <a name="GstSystemClock.functions"></a><h2>Functions</h2> |
| <div class="informaltable"><table class="informaltable" width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="functions_return"> |
| <col class="functions_name"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstClock.html" title="GstClock"><span class="returnvalue">GstClock</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstSystemClock.html#gst-system-clock-obtain" title="gst_system_clock_obtain ()">gst_system_clock_obtain</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <span class="returnvalue">void</span> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstSystemClock.html#gst-system-clock-set-default" title="gst_system_clock_set_default ()">gst_system_clock_set_default</a> <span class="c_punctuation">()</span> |
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| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect1"> |
| <a name="GstSystemClock.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 class="link" href="GstSystemClock.html#GstClockType" title="enum GstClockType"><span class="type">GstClockType</span></a></td> |
| <td class="property_name"><a class="link" href="GstSystemClock.html#GstSystemClock--clock-type" title="The “clock-type” property">clock-type</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect1"> |
| <a name="GstSystemClock.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">enum</td> |
| <td class="function_name"><a class="link" href="GstSystemClock.html#GstClockType" title="enum GstClockType">GstClockType</a></td> |
| </tr> |
| <tr> |
| <td class="datatype_keyword">struct</td> |
| <td class="function_name"><a class="link" href="GstSystemClock.html#GstSystemClock-struct" title="struct GstSystemClock">GstSystemClock</a></td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect1"> |
| <a name="GstSystemClock.object-hierarchy"></a><h2>Object Hierarchy</h2> |
| <pre class="screen"> <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct">GObject</a> |
| <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a> |
| <span class="lineart">╰──</span> <a class="link" href="GstObject.html" title="GstObject">GstObject</a> |
| <span class="lineart">╰──</span> <a class="link" href="GstClock.html" title="GstClock">GstClock</a> |
| <span class="lineart">╰──</span> GstSystemClock |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="GstSystemClock.includes"></a><h2>Includes</h2> |
| <pre class="synopsis">#include <gst/gst.h> |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="GstSystemClock.description"></a><h2>Description</h2> |
| <p>The GStreamer core provides a GstSystemClock based on the system time. |
| Asynchronous callbacks are scheduled from an internal thread.</p> |
| <p>Clock implementors are encouraged to subclass this systemclock as it |
| implements the async notification.</p> |
| <p>Subclasses can however override all of the important methods for sync and |
| async notifications to implement their own callback methods or blocking |
| wait operations.</p> |
| </div> |
| <div class="refsect1"> |
| <a name="GstSystemClock.functions_details"></a><h2>Functions</h2> |
| <div class="refsect2"> |
| <a name="gst-system-clock-obtain"></a><h3>gst_system_clock_obtain ()</h3> |
| <pre class="programlisting"><a class="link" href="GstClock.html" title="GstClock"><span class="returnvalue">GstClock</span></a> * |
| gst_system_clock_obtain (<em class="parameter"><code><span class="type">void</span></code></em>);</pre> |
| <p>Get a handle to the default system clock. The refcount of the |
| clock will be increased so you need to unref the clock after |
| usage.</p> |
| <div class="refsect3"> |
| <a name="gst-system-clock-obtain.returns"></a><h4>Returns</h4> |
| <p> the default clock.</p> |
| <p>MT safe. </p> |
| <p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-system-clock-set-default"></a><h3>gst_system_clock_set_default ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> |
| gst_system_clock_set_default (<em class="parameter"><code><a class="link" href="GstClock.html" title="GstClock"><span class="type">GstClock</span></a> *new_clock</code></em>);</pre> |
| <p>Sets the default system clock that can be obtained with |
| <a class="link" href="GstSystemClock.html#gst-system-clock-obtain" title="gst_system_clock_obtain ()"><code class="function">gst_system_clock_obtain()</code></a>.</p> |
| <p>This is mostly used for testing and debugging purposes when you |
| want to have control over the time reported by the default system |
| clock.</p> |
| <p>MT safe.</p> |
| <div class="refsect3"> |
| <a name="gst-system-clock-set-default.parameters"></a><h4>Parameters</h4> |
| <div class="informaltable"><table class="informaltable" width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody><tr> |
| <td class="parameter_name"><p>new_clock</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstClock.html" title="GstClock"><span class="type">GstClock</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <p class="since">Since: <a class="link" href="ix04.html#api-index-1.4">1.4</a></p> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="GstSystemClock.other_details"></a><h2>Types and Values</h2> |
| <div class="refsect2"> |
| <a name="GstClockType"></a><h3>enum GstClockType</h3> |
| <p>The different kind of clocks.</p> |
| <div class="refsect3"> |
| <a name="GstClockType.members"></a><h4>Members</h4> |
| <div class="informaltable"><table class="informaltable" width="100%" border="0"> |
| <colgroup> |
| <col width="300px" class="enum_members_name"> |
| <col class="enum_members_description"> |
| <col width="200px" class="enum_members_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="enum_member_name"><p><a name="GST-CLOCK-TYPE-REALTIME:CAPS"></a>GST_CLOCK_TYPE_REALTIME</p></td> |
| <td class="enum_member_description"> |
| <p>time since Epoch</p> |
| </td> |
| <td class="enum_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="enum_member_name"><p><a name="GST-CLOCK-TYPE-MONOTONIC:CAPS"></a>GST_CLOCK_TYPE_MONOTONIC</p></td> |
| <td class="enum_member_description"> |
| <p>monotonic time since some unspecified starting |
| point</p> |
| </td> |
| <td class="enum_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="enum_member_name"><p><a name="GST-CLOCK-TYPE-OTHER:CAPS"></a>GST_CLOCK_TYPE_OTHER</p></td> |
| <td class="enum_member_description"> |
| <p>some other time source is used (Since 1.0.5)</p> |
| </td> |
| <td class="enum_member_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstSystemClock-struct"></a><h3>struct GstSystemClock</h3> |
| <pre class="programlisting">struct GstSystemClock;</pre> |
| <p>The default implementation of a <a class="link" href="GstClock.html" title="GstClock"><span class="type">GstClock</span></a> that uses the system time.</p> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="GstSystemClock.property-details"></a><h2>Property Details</h2> |
| <div class="refsect2"> |
| <a name="GstSystemClock--clock-type"></a><h3>The <code class="literal">“clock-type”</code> property</h3> |
| <pre class="programlisting"> “clock-type” <a class="link" href="GstSystemClock.html#GstClockType" title="enum GstClockType"><span class="type">GstClockType</span></a></pre> |
| <p>The type of underlying clock implementation used.</p> |
| <p>Flags: Read / Write</p> |
| <p>Default value: GST_CLOCK_TYPE_MONOTONIC</p> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="GstSystemClock.see-also"></a><h2>See Also</h2> |
| <p><a class="link" href="GstClock.html" title="GstClock"><span class="type">GstClock</span></a></p> |
| </div> |
| </div> |
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