wearable/docs/gst/html/gstreamer-GstDateTime.html

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  30 <a name="gstreamer-GstDateTime"></a><div class="titlepage"></div>
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  33 <h2><span class="refentrytitle"><a name="gstreamer-GstDateTime.top_of_page"></a>GstDateTime</span></h2>
  34 <p>GstDateTime — A date, time and timezone structure</p>
  35 </td>
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  38 <div class="refsynopsisdiv">
  39 <a name="gstreamer-GstDateTime.synopsis"></a><h2>Synopsis</h2>
  40 <pre class="synopsis">
  41 #include &lt;gst/gst.h&gt;
  42
  43                     <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime">GstDateTime</a>;
  44 #define             <a class="link" href="gstreamer-GstDateTime.html#GST-TYPE-DATE-TIME:CAPS" title="GST_TYPE_DATE_TIME">GST_TYPE_DATE_TIME</a>
  45 <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                <a class="link" href="gstreamer-GstDateTime.html#gst-date-time-get-day" title="gst_date_time_get_day ()">gst_date_time_get_day</a>               (<em class="parameter"><code>const <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> *datetime</code></em>);
  46 <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                <a class="link" href="gstreamer-GstDateTime.html#gst-date-time-get-month" title="gst_date_time_get_month ()">gst_date_time_get_month</a>             (<em class="parameter"><code>const <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> *datetime</code></em>);
  47 <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                <a class="link" href="gstreamer-GstDateTime.html#gst-date-time-get-hour" title="gst_date_time_get_hour ()">gst_date_time_get_hour</a>              (<em class="parameter"><code>const <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> *datetime</code></em>);
  48 <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                <a class="link" href="gstreamer-GstDateTime.html#gst-date-time-get-microsecond" title="gst_date_time_get_microsecond ()">gst_date_time_get_microsecond</a>       (<em class="parameter"><code>const <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> *datetime</code></em>);
  49 <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                <a class="link" href="gstreamer-GstDateTime.html#gst-date-time-get-minute" title="gst_date_time_get_minute ()">gst_date_time_get_minute</a>            (<em class="parameter"><code>const <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> *datetime</code></em>);
  50 <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"><span class="returnvalue">gfloat</span></a>              <a class="link" href="gstreamer-GstDateTime.html#gst-date-time-get-time-zone-offset" title="gst_date_time_get_time_zone_offset ()">gst_date_time_get_time_zone_offset</a>  (<em class="parameter"><code>const <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> *datetime</code></em>);
  51 <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                <a class="link" href="gstreamer-GstDateTime.html#gst-date-time-get-second" title="gst_date_time_get_second ()">gst_date_time_get_second</a>            (<em class="parameter"><code>const <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> *datetime</code></em>);
  52 <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                <a class="link" href="gstreamer-GstDateTime.html#gst-date-time-get-year" title="gst_date_time_get_year ()">gst_date_time_get_year</a>              (<em class="parameter"><code>const <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> *datetime</code></em>);
  53 <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="returnvalue">GstDateTime</span></a> *       <a class="link" href="gstreamer-GstDateTime.html#gst-date-time-new" title="gst_date_time_new ()">gst_date_time_new</a>                   (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"><span class="type">gfloat</span></a> tzoffset</code></em>,
  54                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> year</code></em>,
  55                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> month</code></em>,
  56                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> day</code></em>,
  57                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> hour</code></em>,
  58                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> minute</code></em>,
  59                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> seconds</code></em>);
  60 <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="returnvalue">GstDateTime</span></a> *       <a class="link" href="gstreamer-GstDateTime.html#gst-date-time-new-from-unix-epoch-local-time" title="gst_date_time_new_from_unix_epoch_local_time ()">gst_date_time_new_from_unix_epoch_local_time</a>
  61                                                         (<em class="parameter"><code><span class="type">gint64</span> secs</code></em>);
  62 <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="returnvalue">GstDateTime</span></a> *       <a class="link" href="gstreamer-GstDateTime.html#gst-date-time-new-from-unix-epoch-utc" title="gst_date_time_new_from_unix_epoch_utc ()">gst_date_time_new_from_unix_epoch_utc</a>
  63                                                         (<em class="parameter"><code><span class="type">gint64</span> secs</code></em>);
  64 <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="returnvalue">GstDateTime</span></a> *       <a class="link" href="gstreamer-GstDateTime.html#gst-date-time-new-local-time" title="gst_date_time_new_local_time ()">gst_date_time_new_local_time</a>        (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> year</code></em>,
  65                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> month</code></em>,
  66                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> day</code></em>,
  67                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> hour</code></em>,
  68                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> minute</code></em>,
  69                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> seconds</code></em>);
  70 <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="returnvalue">GstDateTime</span></a> *       <a class="link" href="gstreamer-GstDateTime.html#gst-date-time-new-now-local-time" title="gst_date_time_new_now_local_time ()">gst_date_time_new_now_local_time</a>    (<em class="parameter"><code><span class="type">void</span></code></em>);
  71 <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="returnvalue">GstDateTime</span></a> *       <a class="link" href="gstreamer-GstDateTime.html#gst-date-time-new-now-utc" title="gst_date_time_new_now_utc ()">gst_date_time_new_now_utc</a>           (<em class="parameter"><code><span class="type">void</span></code></em>);
  72 <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="returnvalue">GstDateTime</span></a> *       <a class="link" href="gstreamer-GstDateTime.html#gst-date-time-ref" title="gst_date_time_ref ()">gst_date_time_ref</a>                   (<em class="parameter"><code><a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> *datetime</code></em>);
  73 <span class="returnvalue">void</span>                <a class="link" href="gstreamer-GstDateTime.html#gst-date-time-unref" title="gst_date_time_unref ()">gst_date_time_unref</a>                 (<em class="parameter"><code><a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> *datetime</code></em>);
  74 </pre>
  75 </div>
  76 <div class="refsect1">
  77 <a name="gstreamer-GstDateTime.description"></a><h2>Description</h2>
  78 <p>
  79 Struct to store date, time and timezone information altogether.
  80 <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> is refcounted and immutable.
  81 </p>
  82 <p>
  83 Date information is handled using the proleptic Gregorian calendar.
  84 </p>
  85 <p>
  86 Provides basic creation functions and accessor functions to its fields.
  87 </p>
  88 </div>
  89 <div class="refsect1">
  90 <a name="gstreamer-GstDateTime.details"></a><h2>Details</h2>
  91 <div class="refsect2">
  92 <a name="GstDateTime"></a><h3>GstDateTime</h3>
  93 <pre class="programlisting">typedef struct _GstDateTime GstDateTime;</pre>
  94 <p>
  95 Opaque, immutable, refcounted struct that stores date, time and timezone
  96 information. It currently supports ranges from 0001-01-01 to
  97 9999-12-31 in the Gregorian proleptic calendar.
  98 </p>
  99 <p>
 100 Use the acessor functions to get the stored values.
 101 </p>
 102 </div>
 103 <hr>
 104 <div class="refsect2">
 105 <a name="GST-TYPE-DATE-TIME:CAPS"></a><h3>GST_TYPE_DATE_TIME</h3>
 106 <pre class="programlisting">#define GST_TYPE_DATE_TIME               gst_date_time_get_type ()
 107 </pre>
 108 <p>
 109 a boxed <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Generic-values.html#GValue"><span class="type">GValue</span></a> type for <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> that represents a date and time.
 110 </p>
 111 <div class="variablelist"><table border="0">
 112 <col align="left" valign="top">
 113 <tbody><tr>
 114 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 115 <td>the <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Type-Information.html#GType"><span class="type">GType</span></a> of GstDateTime</td>
 116 </tr></tbody>
 117 </table></div>
 118 <p class="since">Since 0.10.31</p>
 119 </div>
 120 <hr>
 121 <div class="refsect2">
 122 <a name="gst-date-time-get-day"></a><h3>gst_date_time_get_day ()</h3>
 123 <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                gst_date_time_get_day               (<em class="parameter"><code>const <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> *datetime</code></em>);</pre>
 124 <p>
 125 Returns the day of this <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a>.
 126 </p>
 127 <div class="variablelist"><table border="0">
 128 <col align="left" valign="top">
 129 <tbody>
 130 <tr>
 131 <td><p><span class="term"><em class="parameter"><code>datetime</code></em> :</span></p></td>
 132 <td>a <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a>
 133 </td>
 134 </tr>
 135 <tr>
 136 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 137 <td>The day of this <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a>
 138 </td>
 139 </tr>
 140 </tbody>
 141 </table></div>
 142 <p class="since">Since 0.10.31</p>
 143 </div>
 144 <hr>
 145 <div class="refsect2">
 146 <a name="gst-date-time-get-month"></a><h3>gst_date_time_get_month ()</h3>
 147 <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                gst_date_time_get_month             (<em class="parameter"><code>const <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> *datetime</code></em>);</pre>
 148 <p>
 149 Returns the month of this <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a>. January is 1, February is 2, etc..
 150 </p>
 151 <div class="variablelist"><table border="0">
 152 <col align="left" valign="top">
 153 <tbody>
 154 <tr>
 155 <td><p><span class="term"><em class="parameter"><code>datetime</code></em> :</span></p></td>
 156 <td>a <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a>
 157 </td>
 158 </tr>
 159 <tr>
 160 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 161 <td>The month of this <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a>
 162 </td>
 163 </tr>
 164 </tbody>
 165 </table></div>
 166 <p class="since">Since 0.10.31</p>
 167 </div>
 168 <hr>
 169 <div class="refsect2">
 170 <a name="gst-date-time-get-hour"></a><h3>gst_date_time_get_hour ()</h3>
 171 <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                gst_date_time_get_hour              (<em class="parameter"><code>const <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> *datetime</code></em>);</pre>
 172 <p>
 173 Retrieves the hour of the day represented by <em class="parameter"><code>datetime</code></em> in the gregorian
 174 calendar. The return is in the range of 0 to 23.
 175 </p>
 176 <div class="variablelist"><table border="0">
 177 <col align="left" valign="top">
 178 <tbody>
 179 <tr>
 180 <td><p><span class="term"><em class="parameter"><code>datetime</code></em> :</span></p></td>
 181 <td>a <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a>
 182 </td>
 183 </tr>
 184 <tr>
 185 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 186 <td>the hour of the day</td>
 187 </tr>
 188 </tbody>
 189 </table></div>
 190 <p class="since">Since 0.10.31</p>
 191 </div>
 192 <hr>
 193 <div class="refsect2">
 194 <a name="gst-date-time-get-microsecond"></a><h3>gst_date_time_get_microsecond ()</h3>
 195 <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                gst_date_time_get_microsecond       (<em class="parameter"><code>const <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> *datetime</code></em>);</pre>
 196 <p>
 197 Retrieves the fractional part of the seconds in microseconds represented by
 198 <em class="parameter"><code>datetime</code></em> in the gregorian calendar.
 199 </p>
 200 <div class="variablelist"><table border="0">
 201 <col align="left" valign="top">
 202 <tbody>
 203 <tr>
 204 <td><p><span class="term"><em class="parameter"><code>datetime</code></em> :</span></p></td>
 205 <td>a <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a>
 206 </td>
 207 </tr>
 208 <tr>
 209 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 210 <td>the microsecond of the second</td>
 211 </tr>
 212 </tbody>
 213 </table></div>
 214 <p class="since">Since 0.10.31</p>
 215 </div>
 216 <hr>
 217 <div class="refsect2">
 218 <a name="gst-date-time-get-minute"></a><h3>gst_date_time_get_minute ()</h3>
 219 <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                gst_date_time_get_minute            (<em class="parameter"><code>const <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> *datetime</code></em>);</pre>
 220 <p>
 221 Retrieves the minute of the hour represented by <em class="parameter"><code>datetime</code></em> in the gregorian
 222 calendar.
 223 </p>
 224 <div class="variablelist"><table border="0">
 225 <col align="left" valign="top">
 226 <tbody>
 227 <tr>
 228 <td><p><span class="term"><em class="parameter"><code>datetime</code></em> :</span></p></td>
 229 <td>a <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a>
 230 </td>
 231 </tr>
 232 <tr>
 233 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 234 <td>the minute of the hour</td>
 235 </tr>
 236 </tbody>
 237 </table></div>
 238 <p class="since">Since 0.10.31</p>
 239 </div>
 240 <hr>
 241 <div class="refsect2">
 242 <a name="gst-date-time-get-time-zone-offset"></a><h3>gst_date_time_get_time_zone_offset ()</h3>
 243 <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"><span class="returnvalue">gfloat</span></a>              gst_date_time_get_time_zone_offset  (<em class="parameter"><code>const <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> *datetime</code></em>);</pre>
 244 <p>
 245 Retrieves the offset from UTC in hours that the timezone specified
 246 by <em class="parameter"><code>datetime</code></em> represents. Timezones ahead (to the east) of UTC have positive
 247 values, timezones before (to the west) of UTC have negative values.
 248 If <em class="parameter"><code>datetime</code></em> represents UTC time, then the offset is zero.
 249 </p>
 250 <div class="variablelist"><table border="0">
 251 <col align="left" valign="top">
 252 <tbody>
 253 <tr>
 254 <td><p><span class="term"><em class="parameter"><code>datetime</code></em> :</span></p></td>
 255 <td>a <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a>
 256 </td>
 257 </tr>
 258 <tr>
 259 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 260 <td>the offset from UTC in hours</td>
 261 </tr>
 262 </tbody>
 263 </table></div>
 264 <p class="since">Since 0.10.31</p>
 265 </div>
 266 <hr>
 267 <div class="refsect2">
 268 <a name="gst-date-time-get-second"></a><h3>gst_date_time_get_second ()</h3>
 269 <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                gst_date_time_get_second            (<em class="parameter"><code>const <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> *datetime</code></em>);</pre>
 270 <p>
 271 Retrieves the second of the minute represented by <em class="parameter"><code>datetime</code></em> in the gregorian
 272 calendar.
 273 </p>
 274 <div class="variablelist"><table border="0">
 275 <col align="left" valign="top">
 276 <tbody>
 277 <tr>
 278 <td><p><span class="term"><em class="parameter"><code>datetime</code></em> :</span></p></td>
 279 <td>a <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a>
 280 </td>
 281 </tr>
 282 <tr>
 283 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 284 <td>the second represented by <em class="parameter"><code>datetime</code></em>
 285 </td>
 286 </tr>
 287 </tbody>
 288 </table></div>
 289 <p class="since">Since 0.10.31</p>
 290 </div>
 291 <hr>
 292 <div class="refsect2">
 293 <a name="gst-date-time-get-year"></a><h3>gst_date_time_get_year ()</h3>
 294 <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                gst_date_time_get_year              (<em class="parameter"><code>const <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> *datetime</code></em>);</pre>
 295 <p>
 296 Returns the year of this <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a>
 297 </p>
 298 <div class="variablelist"><table border="0">
 299 <col align="left" valign="top">
 300 <tbody>
 301 <tr>
 302 <td><p><span class="term"><em class="parameter"><code>datetime</code></em> :</span></p></td>
 303 <td>a <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a>
 304 </td>
 305 </tr>
 306 <tr>
 307 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 308 <td>The year of this <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a>
 309 </td>
 310 </tr>
 311 </tbody>
 312 </table></div>
 313 <p class="since">Since 0.10.31</p>
 314 </div>
 315 <hr>
 316 <div class="refsect2">
 317 <a name="gst-date-time-new"></a><h3>gst_date_time_new ()</h3>
 318 <pre class="programlisting"><a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="returnvalue">GstDateTime</span></a> *       gst_date_time_new                   (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"><span class="type">gfloat</span></a> tzoffset</code></em>,
 319                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> year</code></em>,
 320                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> month</code></em>,
 321                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> day</code></em>,
 322                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> hour</code></em>,
 323                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> minute</code></em>,
 324                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> seconds</code></em>);</pre>
 325 <p>
 326 Creates a new <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> using the date and times in the gregorian calendar
 327 in the supplied timezone.
 328 </p>
 329 <p>
 330 <em class="parameter"><code>year</code></em> should be from 1 to 9999, <em class="parameter"><code>month</code></em> should be from 1 to 12, <em class="parameter"><code>day</code></em> from
 331 1 to 31, <em class="parameter"><code>hour</code></em> from 0 to 23, <em class="parameter"><code>minutes</code></em> and <em class="parameter"><code>seconds</code></em> from 0 to 59.
 332 </p>
 333 <p>
 334 Note that <em class="parameter"><code>tzoffset</code></em> is a float and was chosen so for being able to handle
 335 some fractional timezones, while it still keeps the readability of
 336 represeting it in hours for most timezones.
 337 </p>
 338 <p>
 339 Free-function: gst_date_time_unref
 340 </p>
 341 <div class="variablelist"><table border="0">
 342 <col align="left" valign="top">
 343 <tbody>
 344 <tr>
 345 <td><p><span class="term"><em class="parameter"><code>tzoffset</code></em> :</span></p></td>
 346 <td>Offset from UTC in hours.</td>
 347 </tr>
 348 <tr>
 349 <td><p><span class="term"><em class="parameter"><code>year</code></em> :</span></p></td>
 350 <td>the gregorian year</td>
 351 </tr>
 352 <tr>
 353 <td><p><span class="term"><em class="parameter"><code>month</code></em> :</span></p></td>
 354 <td>the gregorian month</td>
 355 </tr>
 356 <tr>
 357 <td><p><span class="term"><em class="parameter"><code>day</code></em> :</span></p></td>
 358 <td>the day of the gregorian month</td>
 359 </tr>
 360 <tr>
 361 <td><p><span class="term"><em class="parameter"><code>hour</code></em> :</span></p></td>
 362 <td>the hour of the day</td>
 363 </tr>
 364 <tr>
 365 <td><p><span class="term"><em class="parameter"><code>minute</code></em> :</span></p></td>
 366 <td>the minute of the hour</td>
 367 </tr>
 368 <tr>
 369 <td><p><span class="term"><em class="parameter"><code>seconds</code></em> :</span></p></td>
 370 <td>the second of the minute</td>
 371 </tr>
 372 <tr>
 373 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 374 <td>the newly created <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a>. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span>
 375 </td>
 376 </tr>
 377 </tbody>
 378 </table></div>
 379 <p class="since">Since 0.10.31</p>
 380 </div>
 381 <hr>
 382 <div class="refsect2">
 383 <a name="gst-date-time-new-from-unix-epoch-local-time"></a><h3>gst_date_time_new_from_unix_epoch_local_time ()</h3>
 384 <pre class="programlisting"><a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="returnvalue">GstDateTime</span></a> *       gst_date_time_new_from_unix_epoch_local_time
 385                                                         (<em class="parameter"><code><span class="type">gint64</span> secs</code></em>);</pre>
 386 <p>
 387 Creates a new <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> using the time since Jan 1, 1970 specified by
 388 <em class="parameter"><code>secs</code></em>. The <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> is in the local timezone.
 389 </p>
 390 <p>
 391 Free-function: gst_date_time_unref
 392 </p>
 393 <div class="variablelist"><table border="0">
 394 <col align="left" valign="top">
 395 <tbody>
 396 <tr>
 397 <td><p><span class="term"><em class="parameter"><code>secs</code></em> :</span></p></td>
 398 <td>seconds from the Unix epoch</td>
 399 </tr>
 400 <tr>
 401 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 402 <td>the newly created <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a>. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span>
 403 </td>
 404 </tr>
 405 </tbody>
 406 </table></div>
 407 <p class="since">Since 0.10.31</p>
 408 </div>
 409 <hr>
 410 <div class="refsect2">
 411 <a name="gst-date-time-new-from-unix-epoch-utc"></a><h3>gst_date_time_new_from_unix_epoch_utc ()</h3>
 412 <pre class="programlisting"><a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="returnvalue">GstDateTime</span></a> *       gst_date_time_new_from_unix_epoch_utc
 413                                                         (<em class="parameter"><code><span class="type">gint64</span> secs</code></em>);</pre>
 414 <p>
 415 Creates a new <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> using the time since Jan 1, 1970 specified by
 416 <em class="parameter"><code>secs</code></em>. The <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> is in the UTC timezone.
 417 </p>
 418 <p>
 419 Free-function: gst_date_time_unref
 420 </p>
 421 <div class="variablelist"><table border="0">
 422 <col align="left" valign="top">
 423 <tbody>
 424 <tr>
 425 <td><p><span class="term"><em class="parameter"><code>secs</code></em> :</span></p></td>
 426 <td>seconds from the Unix epoch</td>
 427 </tr>
 428 <tr>
 429 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 430 <td>the newly created <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a>. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span>
 431 </td>
 432 </tr>
 433 </tbody>
 434 </table></div>
 435 <p class="since">Since 0.10.31</p>
 436 </div>
 437 <hr>
 438 <div class="refsect2">
 439 <a name="gst-date-time-new-local-time"></a><h3>gst_date_time_new_local_time ()</h3>
 440 <pre class="programlisting"><a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="returnvalue">GstDateTime</span></a> *       gst_date_time_new_local_time        (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> year</code></em>,
 441                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> month</code></em>,
 442                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> day</code></em>,
 443                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> hour</code></em>,
 444                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> minute</code></em>,
 445                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> seconds</code></em>);</pre>
 446 <p>
 447 Creates a new <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> using the date and times in the gregorian calendar
 448 in the local timezone.
 449 </p>
 450 <p>
 451 <em class="parameter"><code>year</code></em> should be from 1 to 9999, <em class="parameter"><code>month</code></em> should be from 1 to 12, <em class="parameter"><code>day</code></em> from
 452 1 to 31, <em class="parameter"><code>hour</code></em> from 0 to 23, <em class="parameter"><code>minutes</code></em> and <em class="parameter"><code>seconds</code></em> from 0 to 59.
 453 </p>
 454 <p>
 455 Free-function: gst_date_time_unref
 456 </p>
 457 <div class="variablelist"><table border="0">
 458 <col align="left" valign="top">
 459 <tbody>
 460 <tr>
 461 <td><p><span class="term"><em class="parameter"><code>year</code></em> :</span></p></td>
 462 <td>the gregorian year</td>
 463 </tr>
 464 <tr>
 465 <td><p><span class="term"><em class="parameter"><code>month</code></em> :</span></p></td>
 466 <td>the gregorian month</td>
 467 </tr>
 468 <tr>
 469 <td><p><span class="term"><em class="parameter"><code>day</code></em> :</span></p></td>
 470 <td>the day of the gregorian month</td>
 471 </tr>
 472 <tr>
 473 <td><p><span class="term"><em class="parameter"><code>hour</code></em> :</span></p></td>
 474 <td>the hour of the day</td>
 475 </tr>
 476 <tr>
 477 <td><p><span class="term"><em class="parameter"><code>minute</code></em> :</span></p></td>
 478 <td>the minute of the hour</td>
 479 </tr>
 480 <tr>
 481 <td><p><span class="term"><em class="parameter"><code>seconds</code></em> :</span></p></td>
 482 <td>the second of the minute</td>
 483 </tr>
 484 <tr>
 485 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 486 <td>the newly created <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a>. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span>
 487 </td>
 488 </tr>
 489 </tbody>
 490 </table></div>
 491 <p class="since">Since 0.10.31</p>
 492 </div>
 493 <hr>
 494 <div class="refsect2">
 495 <a name="gst-date-time-new-now-local-time"></a><h3>gst_date_time_new_now_local_time ()</h3>
 496 <pre class="programlisting"><a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="returnvalue">GstDateTime</span></a> *       gst_date_time_new_now_local_time    (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
 497 <p>
 498 Creates a new <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> representing the current date and time.
 499 </p>
 500 <p>
 501 Free-function: gst_date_time_unref
 502 </p>
 503 <div class="variablelist"><table border="0">
 504 <col align="left" valign="top">
 505 <tbody><tr>
 506 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 507 <td>the newly created <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> which should
 508 be freed with <a class="link" href="gstreamer-GstDateTime.html#gst-date-time-unref" title="gst_date_time_unref ()"><code class="function">gst_date_time_unref()</code></a>. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span>
 509 </td>
 510 </tr></tbody>
 511 </table></div>
 512 <p class="since">Since 0.10.31</p>
 513 </div>
 514 <hr>
 515 <div class="refsect2">
 516 <a name="gst-date-time-new-now-utc"></a><h3>gst_date_time_new_now_utc ()</h3>
 517 <pre class="programlisting"><a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="returnvalue">GstDateTime</span></a> *       gst_date_time_new_now_utc           (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
 518 <p>
 519 Creates a new <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> that represents the current instant at Universal
 520 coordinated time.
 521 </p>
 522 <p>
 523 Free-function: gst_date_time_unref
 524 </p>
 525 <div class="variablelist"><table border="0">
 526 <col align="left" valign="top">
 527 <tbody><tr>
 528 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 529 <td>the newly created <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> which should
 530 be freed with <a class="link" href="gstreamer-GstDateTime.html#gst-date-time-unref" title="gst_date_time_unref ()"><code class="function">gst_date_time_unref()</code></a>. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span>
 531 </td>
 532 </tr></tbody>
 533 </table></div>
 534 <p class="since">Since 0.10.31</p>
 535 </div>
 536 <hr>
 537 <div class="refsect2">
 538 <a name="gst-date-time-ref"></a><h3>gst_date_time_ref ()</h3>
 539 <pre class="programlisting"><a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="returnvalue">GstDateTime</span></a> *       gst_date_time_ref                   (<em class="parameter"><code><a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> *datetime</code></em>);</pre>
 540 <p>
 541 Atomically increments the reference count of <em class="parameter"><code>datetime</code></em> by one.
 542 </p>
 543 <div class="variablelist"><table border="0">
 544 <col align="left" valign="top">
 545 <tbody>
 546 <tr>
 547 <td><p><span class="term"><em class="parameter"><code>datetime</code></em> :</span></p></td>
 548 <td>a <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a>
 549 </td>
 550 </tr>
 551 <tr>
 552 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 553 <td>the reference <em class="parameter"><code>datetime</code></em>. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span>
 554 </td>
 555 </tr>
 556 </tbody>
 557 </table></div>
 558 <p class="since">Since 0.10.31</p>
 559 </div>
 560 <hr>
 561 <div class="refsect2">
 562 <a name="gst-date-time-unref"></a><h3>gst_date_time_unref ()</h3>
 563 <pre class="programlisting"><span class="returnvalue">void</span>                gst_date_time_unref                 (<em class="parameter"><code><a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a> *datetime</code></em>);</pre>
 564 <p>
 565 Atomically decrements the reference count of <em class="parameter"><code>datetime</code></em> by one.  When the
 566 reference count reaches zero, the structure is freed.
 567 </p>
 568 <div class="variablelist"><table border="0">
 569 <col align="left" valign="top">
 570 <tbody><tr>
 571 <td><p><span class="term"><em class="parameter"><code>datetime</code></em> :</span></p></td>
 572 <td>a <a class="link" href="gstreamer-GstDateTime.html#GstDateTime" title="GstDateTime"><span class="type">GstDateTime</span></a>. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span>
 573 </td>
 574 </tr></tbody>
 575 </table></div>
 576 <p class="since">Since 0.10.31</p>
 577 </div>
 578 </div>
 579 </div>
 580 <div class="footer">
 581 <hr>
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