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 <h2><span class="refentrytitle"><a name="gstreamer-GstUtils.top_of_page"></a>GstUtils</span></h2>
 <p>GstUtils — Various utility functions</p>
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 <a name="gstreamer-GstUtils.synopsis"></a><h2>Synopsis</h2>
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 #include &lt;gst/gst.h&gt;

 #define             <a class="link" href="gstreamer-GstUtils.html#GST-CALL-PARENT:CAPS" title="GST_CALL_PARENT()">GST_CALL_PARENT</a>                     (parent_class_cast,
                                                          name,
                                                          args)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-CALL-PARENT-WITH-DEFAULT:CAPS" title="GST_CALL_PARENT_WITH_DEFAULT()">GST_CALL_PARENT_WITH_DEFAULT</a>        (parent_class_cast,
                                                          name,
                                                          args,
                                                          def_return)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-READ-UINT8:CAPS" title="GST_READ_UINT8()">GST_READ_UINT8</a>                      (data)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-READ-UINT16-LE:CAPS" title="GST_READ_UINT16_LE()">GST_READ_UINT16_LE</a>                  (data)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-READ-UINT16-BE:CAPS" title="GST_READ_UINT16_BE()">GST_READ_UINT16_BE</a>                  (data)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-READ-UINT24-LE:CAPS" title="GST_READ_UINT24_LE()">GST_READ_UINT24_LE</a>                  (data)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-READ-UINT24-BE:CAPS" title="GST_READ_UINT24_BE()">GST_READ_UINT24_BE</a>                  (data)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-READ-UINT32-LE:CAPS" title="GST_READ_UINT32_LE()">GST_READ_UINT32_LE</a>                  (data)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-READ-UINT32-BE:CAPS" title="GST_READ_UINT32_BE()">GST_READ_UINT32_BE</a>                  (data)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-READ-UINT64-LE:CAPS" title="GST_READ_UINT64_LE()">GST_READ_UINT64_LE</a>                  (data)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-READ-UINT64-BE:CAPS" title="GST_READ_UINT64_BE()">GST_READ_UINT64_BE</a>                  (data)
 <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-GstUtils.html#GST-READ-FLOAT-LE:CAPS" title="GST_READ_FLOAT_LE ()">GST_READ_FLOAT_LE</a>                   (<em class="parameter"><code>const <span class="type">guint8</span> *data</code></em>);
 <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-GstUtils.html#GST-READ-FLOAT-BE:CAPS" title="GST_READ_FLOAT_BE ()">GST_READ_FLOAT_BE</a>                   (<em class="parameter"><code>const <span class="type">guint8</span> *data</code></em>);
 <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="returnvalue">gdouble</span></a>             <a class="link" href="gstreamer-GstUtils.html#GST-READ-DOUBLE-LE:CAPS" title="GST_READ_DOUBLE_LE ()">GST_READ_DOUBLE_LE</a>                  (<em class="parameter"><code>const <span class="type">guint8</span> *data</code></em>);
 <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="returnvalue">gdouble</span></a>             <a class="link" href="gstreamer-GstUtils.html#GST-READ-DOUBLE-BE:CAPS" title="GST_READ_DOUBLE_BE ()">GST_READ_DOUBLE_BE</a>                  (<em class="parameter"><code>const <span class="type">guint8</span> *data</code></em>);
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-WRITE-UINT8:CAPS" title="GST_WRITE_UINT8()">GST_WRITE_UINT8</a>                     (data,
                                                          num)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-WRITE-UINT16-LE:CAPS" title="GST_WRITE_UINT16_LE()">GST_WRITE_UINT16_LE</a>                 (data,
                                                          num)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-WRITE-UINT16-BE:CAPS" title="GST_WRITE_UINT16_BE()">GST_WRITE_UINT16_BE</a>                 (data,
                                                          num)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-WRITE-UINT24-LE:CAPS" title="GST_WRITE_UINT24_LE()">GST_WRITE_UINT24_LE</a>                 (data,
                                                          num)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-WRITE-UINT24-BE:CAPS" title="GST_WRITE_UINT24_BE()">GST_WRITE_UINT24_BE</a>                 (data,
                                                          num)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-WRITE-UINT32-LE:CAPS" title="GST_WRITE_UINT32_LE()">GST_WRITE_UINT32_LE</a>                 (data,
                                                          num)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-WRITE-UINT32-BE:CAPS" title="GST_WRITE_UINT32_BE()">GST_WRITE_UINT32_BE</a>                 (data,
                                                          num)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-WRITE-UINT64-LE:CAPS" title="GST_WRITE_UINT64_LE()">GST_WRITE_UINT64_LE</a>                 (data,
                                                          num)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-WRITE-UINT64-BE:CAPS" title="GST_WRITE_UINT64_BE()">GST_WRITE_UINT64_BE</a>                 (data,
                                                          num)
 <span class="returnvalue">void</span>                <a class="link" href="gstreamer-GstUtils.html#GST-WRITE-FLOAT-LE:CAPS" title="GST_WRITE_FLOAT_LE ()">GST_WRITE_FLOAT_LE</a>                  (<em class="parameter"><code><span class="type">guint8</span> *data</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"><span class="type">gfloat</span></a> num</code></em>);
 <span class="returnvalue">void</span>                <a class="link" href="gstreamer-GstUtils.html#GST-WRITE-FLOAT-BE:CAPS" title="GST_WRITE_FLOAT_BE ()">GST_WRITE_FLOAT_BE</a>                  (<em class="parameter"><code><span class="type">guint8</span> *data</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"><span class="type">gfloat</span></a> num</code></em>);
 <span class="returnvalue">void</span>                <a class="link" href="gstreamer-GstUtils.html#GST-WRITE-DOUBLE-LE:CAPS" title="GST_WRITE_DOUBLE_LE ()">GST_WRITE_DOUBLE_LE</a>                 (<em class="parameter"><code><span class="type">guint8</span> *data</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> num</code></em>);
 <span class="returnvalue">void</span>                <a class="link" href="gstreamer-GstUtils.html#GST-WRITE-DOUBLE-BE:CAPS" title="GST_WRITE_DOUBLE_BE ()">GST_WRITE_DOUBLE_BE</a>                 (<em class="parameter"><code><span class="type">guint8</span> *data</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> num</code></em>);
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-ROUND-UP-2:CAPS" title="GST_ROUND_UP_2()">GST_ROUND_UP_2</a>                      (num)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-ROUND-UP-4:CAPS" title="GST_ROUND_UP_4()">GST_ROUND_UP_4</a>                      (num)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-ROUND-UP-8:CAPS" title="GST_ROUND_UP_8()">GST_ROUND_UP_8</a>                      (num)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-ROUND-UP-16:CAPS" title="GST_ROUND_UP_16()">GST_ROUND_UP_16</a>                     (num)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-ROUND-UP-32:CAPS" title="GST_ROUND_UP_32()">GST_ROUND_UP_32</a>                     (num)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-ROUND-UP-64:CAPS" title="GST_ROUND_UP_64()">GST_ROUND_UP_64</a>                     (num)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-ROUND-DOWN-2:CAPS" title="GST_ROUND_DOWN_2()">GST_ROUND_DOWN_2</a>                    (num)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-ROUND-DOWN-4:CAPS" title="GST_ROUND_DOWN_4()">GST_ROUND_DOWN_4</a>                    (num)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-ROUND-DOWN-8:CAPS" title="GST_ROUND_DOWN_8()">GST_ROUND_DOWN_8</a>                    (num)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-ROUND-DOWN-16:CAPS" title="GST_ROUND_DOWN_16()">GST_ROUND_DOWN_16</a>                   (num)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-ROUND-DOWN-32:CAPS" title="GST_ROUND_DOWN_32()">GST_ROUND_DOWN_32</a>                   (num)
 #define             <a class="link" href="gstreamer-GstUtils.html#GST-ROUND-DOWN-64:CAPS" title="GST_ROUND_DOWN_64()">GST_ROUND_DOWN_64</a>                   (num)
 #define             <a class="link" href="gstreamer-GstUtils.html#GDOUBLE-FROM-BE:CAPS" title="GDOUBLE_FROM_BE()">GDOUBLE_FROM_BE</a>                     (val)
 #define             <a class="link" href="gstreamer-GstUtils.html#GDOUBLE-FROM-LE:CAPS" title="GDOUBLE_FROM_LE()">GDOUBLE_FROM_LE</a>                     (val)
 <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="returnvalue">gdouble</span></a>             <a class="link" href="gstreamer-GstUtils.html#GDOUBLE-SWAP-LE-BE:CAPS" title="GDOUBLE_SWAP_LE_BE ()">GDOUBLE_SWAP_LE_BE</a>                  (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> in</code></em>);
 #define             <a class="link" href="gstreamer-GstUtils.html#GDOUBLE-TO-BE:CAPS" title="GDOUBLE_TO_BE()">GDOUBLE_TO_BE</a>                       (val)
 #define             <a class="link" href="gstreamer-GstUtils.html#GDOUBLE-TO-LE:CAPS" title="GDOUBLE_TO_LE()">GDOUBLE_TO_LE</a>                       (val)
 #define             <a class="link" href="gstreamer-GstUtils.html#GFLOAT-FROM-BE:CAPS" title="GFLOAT_FROM_BE()">GFLOAT_FROM_BE</a>                      (val)
 #define             <a class="link" href="gstreamer-GstUtils.html#GFLOAT-FROM-LE:CAPS" title="GFLOAT_FROM_LE()">GFLOAT_FROM_LE</a>                      (val)
 <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-GstUtils.html#GFLOAT-SWAP-LE-BE:CAPS" title="GFLOAT_SWAP_LE_BE ()">GFLOAT_SWAP_LE_BE</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> in</code></em>);
 #define             <a class="link" href="gstreamer-GstUtils.html#GFLOAT-TO-BE:CAPS" title="GFLOAT_TO_BE()">GFLOAT_TO_BE</a>                        (val)
 #define             <a class="link" href="gstreamer-GstUtils.html#GFLOAT-TO-LE:CAPS" title="GFLOAT_TO_LE()">GFLOAT_TO_LE</a>                        (val)
 #define             <a class="link" href="gstreamer-GstUtils.html#gst-guint64-to-gdouble" title="gst_guint64_to_gdouble()">gst_guint64_to_gdouble</a>              (value)
 #define             <a class="link" href="gstreamer-GstUtils.html#gst-gdouble-to-guint64" title="gst_gdouble_to_guint64()">gst_gdouble_to_guint64</a>              (value)
 <span class="returnvalue">void</span>                <a class="link" href="gstreamer-GstUtils.html#gst-util-dump-mem" title="gst_util_dump_mem ()">gst_util_dump_mem</a>                   (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"><span class="type">guchar</span></a> *mem</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> size</code></em>);
 <span class="returnvalue">guint64</span>             <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale" title="gst_util_uint64_scale ()">gst_util_uint64_scale</a>               (<em class="parameter"><code><span class="type">guint64</span> val</code></em>,
                                                          <em class="parameter"><code><span class="type">guint64</span> num</code></em>,
                                                          <em class="parameter"><code><span class="type">guint64</span> denom</code></em>);
 <span class="returnvalue">guint64</span>             <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-round" title="gst_util_uint64_scale_round ()">gst_util_uint64_scale_round</a>         (<em class="parameter"><code><span class="type">guint64</span> val</code></em>,
                                                          <em class="parameter"><code><span class="type">guint64</span> num</code></em>,
                                                          <em class="parameter"><code><span class="type">guint64</span> denom</code></em>);
 <span class="returnvalue">guint64</span>             <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-ceil" title="gst_util_uint64_scale_ceil ()">gst_util_uint64_scale_ceil</a>          (<em class="parameter"><code><span class="type">guint64</span> val</code></em>,
                                                          <em class="parameter"><code><span class="type">guint64</span> num</code></em>,
                                                          <em class="parameter"><code><span class="type">guint64</span> denom</code></em>);
 <span class="returnvalue">guint64</span>             <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-int" title="gst_util_uint64_scale_int ()">gst_util_uint64_scale_int</a>           (<em class="parameter"><code><span class="type">guint64</span> val</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> num</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> denom</code></em>);
 <span class="returnvalue">guint64</span>             <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-int-round" title="gst_util_uint64_scale_int_round ()">gst_util_uint64_scale_int_round</a>     (<em class="parameter"><code><span class="type">guint64</span> val</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> num</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> denom</code></em>);
 <span class="returnvalue">guint64</span>             <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-int-ceil" title="gst_util_uint64_scale_int_ceil ()">gst_util_uint64_scale_int_ceil</a>      (<em class="parameter"><code><span class="type">guint64</span> val</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> num</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> denom</code></em>);
 <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-GstUtils.html#gst-util-greatest-common-divisor" title="gst_util_greatest_common_divisor ()">gst_util_greatest_common_divisor</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> a</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> b</code></em>);
 <span class="returnvalue">gint64</span>              <a class="link" href="gstreamer-GstUtils.html#gst-util-greatest-common-divisor-int64" title="gst_util_greatest_common_divisor_int64 ()">gst_util_greatest_common_divisor_int64</a>
                                                         (<em class="parameter"><code><span class="type">gint64</span> a</code></em>,
                                                          <em class="parameter"><code><span class="type">gint64</span> b</code></em>);
 <span class="returnvalue">void</span>                <a class="link" href="gstreamer-GstUtils.html#gst-util-fraction-to-double" title="gst_util_fraction_to_double ()">gst_util_fraction_to_double</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> src_n</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> src_d</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> *dest</code></em>);
 <span class="returnvalue">void</span>                <a class="link" href="gstreamer-GstUtils.html#gst-util-double-to-fraction" title="gst_util_double_to_fraction ()">gst_util_double_to_fraction</a>         (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> src</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *dest_n</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *dest_d</code></em>);
 <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="gstreamer-GstUtils.html#gst-util-fraction-multiply" title="gst_util_fraction_multiply ()">gst_util_fraction_multiply</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> a_n</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> a_d</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> b_n</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> b_d</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *res_n</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *res_d</code></em>);
 <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="gstreamer-GstUtils.html#gst-util-fraction-add" title="gst_util_fraction_add ()">gst_util_fraction_add</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> a_n</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> a_d</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> b_n</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> b_d</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *res_n</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *res_d</code></em>);
 <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-GstUtils.html#gst-util-fraction-compare" title="gst_util_fraction_compare ()">gst_util_fraction_compare</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> a_n</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> a_d</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> b_n</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> b_d</code></em>);
 <span class="returnvalue">guint32</span>             <a class="link" href="gstreamer-GstUtils.html#gst-util-seqnum-next" title="gst_util_seqnum_next ()">gst_util_seqnum_next</a>                (<em class="parameter"><code><span class="type">void</span></code></em>);
 <span class="returnvalue">gint32</span>              <a class="link" href="gstreamer-GstUtils.html#gst-util-seqnum-compare" title="gst_util_seqnum_compare ()">gst_util_seqnum_compare</a>             (<em class="parameter"><code><span class="type">guint32</span> s1</code></em>,
                                                          <em class="parameter"><code><span class="type">guint32</span> s2</code></em>);
 <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>               <a class="link" href="gstreamer-GstUtils.html#gst-util-group-id-next" title="gst_util_group_id_next ()">gst_util_group_id_next</a>              (<em class="parameter"><code><span class="type">void</span></code></em>);
 <span class="returnvalue">void</span>                <a class="link" href="gstreamer-GstUtils.html#gst-util-set-object-arg" title="gst_util_set_object_arg ()">gst_util_set_object_arg</a>             (<em class="parameter"><code><a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObject"><span class="type">GObject</span></a> *object</code></em>,
                                                          <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>,
                                                          <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *value</code></em>);
 <span class="returnvalue">void</span>                <a class="link" href="gstreamer-GstUtils.html#gst-util-set-value-from-string" title="gst_util_set_value_from_string ()">gst_util_set_value_from_string</a>      (<em class="parameter"><code><a href="http://library.gnome.org/devel/gobject/unstable/gobject-Generic-values.html#GValue"><span class="type">GValue</span></a> *value</code></em>,
                                                          <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *value_str</code></em>);
 <a class="link" href="GstClock.html#GstClockTime" title="GstClockTime"><span class="returnvalue">GstClockTime</span></a>        <a class="link" href="gstreamer-GstUtils.html#gst-util-get-timestamp" title="gst_util_get_timestamp ()">gst_util_get_timestamp</a>              (<em class="parameter"><code><span class="type">void</span></code></em>);
 enum                <a class="link" href="gstreamer-GstUtils.html#GstSearchMode" title="enum GstSearchMode">GstSearchMode</a>;
 <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a>            <a class="link" href="gstreamer-GstUtils.html#gst-util-array-binary-search" title="gst_util_array_binary_search ()">gst_util_array_binary_search</a>        (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> array</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> num_elements</code></em>,
                                                          <em class="parameter"><code><span class="type">gsize</span> element_size</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Doubly-Linked-Lists.html#GCompareDataFunc"><span class="type">GCompareDataFunc</span></a> search_func</code></em>,
                                                          <em class="parameter"><code><a class="link" href="gstreamer-GstUtils.html#GstSearchMode" title="enum GstSearchMode"><span class="type">GstSearchMode</span></a> mode</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gconstpointer"><span class="type">gconstpointer</span></a> search_data</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);
 </pre>
 </div>
 <div class="refsect1">
 <a name="gstreamer-GstUtils.description"></a><h2>Description</h2>
 </div>
 <div class="refsect1">
 <a name="gstreamer-GstUtils.details"></a><h2>Details</h2>
 <div class="refsect2">
 <a name="GST-CALL-PARENT:CAPS"></a><h3>GST_CALL_PARENT()</h3>
 <pre class="programlisting">#define             GST_CALL_PARENT(parent_class_cast, name, args)</pre>
 <p>
 Just call the parent handler.  This assumes that there is a variable
 named parent_class that points to the (duh!) parent class.  Note that
 this macro is not to be used with things that return something, use
 the _WITH_DEFAULT version for that
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>parent_class_cast</code></em> :</span></p></td>
 <td>the name of the class cast macro for the parent type</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
 <td>name of the function to call</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>args</code></em> :</span></p></td>
 <td>arguments enclosed in '( )'</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-CALL-PARENT-WITH-DEFAULT:CAPS"></a><h3>GST_CALL_PARENT_WITH_DEFAULT()</h3>
 <pre class="programlisting">#define             GST_CALL_PARENT_WITH_DEFAULT(parent_class_cast, name, args, def_return)</pre>
 <p>
 Same as <a class="link" href="gstreamer-GstUtils.html#GST-CALL-PARENT:CAPS" title="GST_CALL_PARENT()"><code class="function">GST_CALL_PARENT()</code></a>, but in case there is no implementation, it
 evaluates to <em class="parameter"><code>def_return</code></em>.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>parent_class_cast</code></em> :</span></p></td>
 <td>the name of the class cast macro for the parent type</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
 <td>name of the function to call</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>args</code></em> :</span></p></td>
 <td>arguments enclosed in '( )'</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>def_return</code></em> :</span></p></td>
 <td>default result</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-READ-UINT8:CAPS"></a><h3>GST_READ_UINT8()</h3>
 <pre class="programlisting">#define GST_READ_UINT8(data)            (_GST_GET (data, 0,  8,  0))
 </pre>
 <p>
 Read an 8 bit unsigned integer value from the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-READ-UINT16-LE:CAPS"></a><h3>GST_READ_UINT16_LE()</h3>
 <pre class="programlisting">#  define GST_READ_UINT16_LE(data)      _GST_FAST_READ_SWAP (16, data)
 </pre>
 <p>
 Read a 16 bit unsigned integer value in little endian format from the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-READ-UINT16-BE:CAPS"></a><h3>GST_READ_UINT16_BE()</h3>
 <pre class="programlisting">#  define GST_READ_UINT16_BE(data)      _GST_FAST_READ (16, data)
 </pre>
 <p>
 Read a 16 bit unsigned integer value in big endian format from the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-READ-UINT24-LE:CAPS"></a><h3>GST_READ_UINT24_LE()</h3>
 <pre class="programlisting">#define GST_READ_UINT24_LE(data) __gst_slow_read24_le((const guint8 *)(data))
 </pre>
 <p>
 Read a 24 bit unsigned integer value in little endian format from the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-READ-UINT24-BE:CAPS"></a><h3>GST_READ_UINT24_BE()</h3>
 <pre class="programlisting">#define GST_READ_UINT24_BE(data) __gst_slow_read24_be((const guint8 *)(data))
 </pre>
 <p>
 Read a 24 bit unsigned integer value in big endian format from the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-READ-UINT32-LE:CAPS"></a><h3>GST_READ_UINT32_LE()</h3>
 <pre class="programlisting">#  define GST_READ_UINT32_LE(data)      _GST_FAST_READ_SWAP (32, data)
 </pre>
 <p>
 Read a 32 bit unsigned integer value in little endian format from the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-READ-UINT32-BE:CAPS"></a><h3>GST_READ_UINT32_BE()</h3>
 <pre class="programlisting">#  define GST_READ_UINT32_BE(data)      _GST_FAST_READ (32, data)
 </pre>
 <p>
 Read a 32 bit unsigned integer value in big endian format from the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-READ-UINT64-LE:CAPS"></a><h3>GST_READ_UINT64_LE()</h3>
 <pre class="programlisting">#  define GST_READ_UINT64_LE(data)      _GST_FAST_READ_SWAP (64, data)
 </pre>
 <p>
 Read a 64 bit unsigned integer value in little endian format from the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-READ-UINT64-BE:CAPS"></a><h3>GST_READ_UINT64_BE()</h3>
 <pre class="programlisting">#  define GST_READ_UINT64_BE(data)      _GST_FAST_READ (64, data)
 </pre>
 <p>
 Read a 64 bit unsigned integer value in big endian format from the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-READ-FLOAT-LE:CAPS"></a><h3>GST_READ_FLOAT_LE ()</h3>
 <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"><span class="returnvalue">gfloat</span></a>              GST_READ_FLOAT_LE                   (<em class="parameter"><code>const <span class="type">guint8</span> *data</code></em>);</pre>
 <p>
 Read a 32 bit float value in little endian format from the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr>
 <tr>
 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 <td>The floating point value read from <em class="parameter"><code>data</code></em>
 </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-READ-FLOAT-BE:CAPS"></a><h3>GST_READ_FLOAT_BE ()</h3>
 <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"><span class="returnvalue">gfloat</span></a>              GST_READ_FLOAT_BE                   (<em class="parameter"><code>const <span class="type">guint8</span> *data</code></em>);</pre>
 <p>
 Read a 32 bit float value in big endian format from the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr>
 <tr>
 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 <td>The floating point value read from <em class="parameter"><code>data</code></em>
 </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-READ-DOUBLE-LE:CAPS"></a><h3>GST_READ_DOUBLE_LE ()</h3>
 <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="returnvalue">gdouble</span></a>             GST_READ_DOUBLE_LE                  (<em class="parameter"><code>const <span class="type">guint8</span> *data</code></em>);</pre>
 <p>
 Read a 64 bit double value in little endian format from the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr>
 <tr>
 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 <td>The double-precision floating point value read from <em class="parameter"><code>data</code></em>
 </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-READ-DOUBLE-BE:CAPS"></a><h3>GST_READ_DOUBLE_BE ()</h3>
 <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="returnvalue">gdouble</span></a>             GST_READ_DOUBLE_BE                  (<em class="parameter"><code>const <span class="type">guint8</span> *data</code></em>);</pre>
 <p>
 Read a 64 bit double value in big endian format from the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr>
 <tr>
 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 <td>The double-precision floating point value read from <em class="parameter"><code>data</code></em>
 </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-WRITE-UINT8:CAPS"></a><h3>GST_WRITE_UINT8()</h3>
 <pre class="programlisting">#define             GST_WRITE_UINT8(data, num)</pre>
 <p>
 Store an 8 bit unsigned integer value into the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>value to store</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-WRITE-UINT16-LE:CAPS"></a><h3>GST_WRITE_UINT16_LE()</h3>
 <pre class="programlisting">#define             GST_WRITE_UINT16_LE(data, num)</pre>
 <p>
 Store a 16 bit unsigned integer value in little endian format into the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>value to store</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-WRITE-UINT16-BE:CAPS"></a><h3>GST_WRITE_UINT16_BE()</h3>
 <pre class="programlisting">#define             GST_WRITE_UINT16_BE(data, num)</pre>
 <p>
 Store a 16 bit unsigned integer value in big endian format into the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>value to store</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-WRITE-UINT24-LE:CAPS"></a><h3>GST_WRITE_UINT24_LE()</h3>
 <pre class="programlisting">#define             GST_WRITE_UINT24_LE(data, num)</pre>
 <p>
 Store a 24 bit unsigned integer value in little endian format into the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>value to store</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-WRITE-UINT24-BE:CAPS"></a><h3>GST_WRITE_UINT24_BE()</h3>
 <pre class="programlisting">#define             GST_WRITE_UINT24_BE(data, num)</pre>
 <p>
 Store a 24 bit unsigned integer value in big endian format into the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>value to store</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-WRITE-UINT32-LE:CAPS"></a><h3>GST_WRITE_UINT32_LE()</h3>
 <pre class="programlisting">#define             GST_WRITE_UINT32_LE(data, num)</pre>
 <p>
 Store a 32 bit unsigned integer value in little endian format into the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>value to store</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-WRITE-UINT32-BE:CAPS"></a><h3>GST_WRITE_UINT32_BE()</h3>
 <pre class="programlisting">#define             GST_WRITE_UINT32_BE(data, num)</pre>
 <p>
 Store a 32 bit unsigned integer value in big endian format into the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>value to store</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-WRITE-UINT64-LE:CAPS"></a><h3>GST_WRITE_UINT64_LE()</h3>
 <pre class="programlisting">#define             GST_WRITE_UINT64_LE(data, num)</pre>
 <p>
 Store a 64 bit unsigned integer value in little endian format into the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>value to store</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-WRITE-UINT64-BE:CAPS"></a><h3>GST_WRITE_UINT64_BE()</h3>
 <pre class="programlisting">#define             GST_WRITE_UINT64_BE(data, num)</pre>
 <p>
 Store a 64 bit unsigned integer value in big endian format into the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>value to store</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-WRITE-FLOAT-LE:CAPS"></a><h3>GST_WRITE_FLOAT_LE ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>                GST_WRITE_FLOAT_LE                  (<em class="parameter"><code><span class="type">guint8</span> *data</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"><span class="type">gfloat</span></a> num</code></em>);</pre>
 <p>
 Store a 32 bit float value in little endian format into the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>value to store</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-WRITE-FLOAT-BE:CAPS"></a><h3>GST_WRITE_FLOAT_BE ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>                GST_WRITE_FLOAT_BE                  (<em class="parameter"><code><span class="type">guint8</span> *data</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"><span class="type">gfloat</span></a> num</code></em>);</pre>
 <p>
 Store a 32 bit float value in big endian format into the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>value to store</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-WRITE-DOUBLE-LE:CAPS"></a><h3>GST_WRITE_DOUBLE_LE ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>                GST_WRITE_DOUBLE_LE                 (<em class="parameter"><code><span class="type">guint8</span> *data</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> num</code></em>);</pre>
 <p>
 Store a 64 bit double value in little endian format into the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>value to store</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-WRITE-DOUBLE-BE:CAPS"></a><h3>GST_WRITE_DOUBLE_BE ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>                GST_WRITE_DOUBLE_BE                 (<em class="parameter"><code><span class="type">guint8</span> *data</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> num</code></em>);</pre>
 <p>
 Store a 64 bit double value in big endian format into the memory buffer.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
 <td>memory location</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>value to store</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-ROUND-UP-2:CAPS"></a><h3>GST_ROUND_UP_2()</h3>
 <pre class="programlisting">#define GST_ROUND_UP_2(num)  (((num)+1)&amp;~1)
 </pre>
 <p>
 Rounds an integer value up to the next multiple of 2.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>integer value to round up</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-ROUND-UP-4:CAPS"></a><h3>GST_ROUND_UP_4()</h3>
 <pre class="programlisting">#define GST_ROUND_UP_4(num)  (((num)+3)&amp;~3)
 </pre>
 <p>
 Rounds an integer value up to the next multiple of 4.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>integer value to round up</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-ROUND-UP-8:CAPS"></a><h3>GST_ROUND_UP_8()</h3>
 <pre class="programlisting">#define GST_ROUND_UP_8(num)  (((num)+7)&amp;~7)
 </pre>
 <p>
 Rounds an integer value up to the next multiple of 8.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>integer value to round up</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-ROUND-UP-16:CAPS"></a><h3>GST_ROUND_UP_16()</h3>
 <pre class="programlisting">#define GST_ROUND_UP_16(num) (((num)+15)&amp;~15)
 </pre>
 <p>
 Rounds an integer value up to the next multiple of 16.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>integer value to round up</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-ROUND-UP-32:CAPS"></a><h3>GST_ROUND_UP_32()</h3>
 <pre class="programlisting">#define GST_ROUND_UP_32(num) (((num)+31)&amp;~31)
 </pre>
 <p>
 Rounds an integer value up to the next multiple of 32.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>integer value to round up</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-ROUND-UP-64:CAPS"></a><h3>GST_ROUND_UP_64()</h3>
 <pre class="programlisting">#define GST_ROUND_UP_64(num) (((num)+63)&amp;~63)
 </pre>
 <p>
 Rounds an integer value up to the next multiple of 64.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>integer value to round up</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-ROUND-DOWN-2:CAPS"></a><h3>GST_ROUND_DOWN_2()</h3>
 <pre class="programlisting">#define GST_ROUND_DOWN_2(num)  ((num)&amp;(~1))
 </pre>
 <p>
 Rounds an integer value down to the next multiple of 2.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>integer value to round down</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-ROUND-DOWN-4:CAPS"></a><h3>GST_ROUND_DOWN_4()</h3>
 <pre class="programlisting">#define GST_ROUND_DOWN_4(num)  ((num)&amp;(~3))
 </pre>
 <p>
 Rounds an integer value down to the next multiple of 4.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>integer value to round down</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-ROUND-DOWN-8:CAPS"></a><h3>GST_ROUND_DOWN_8()</h3>
 <pre class="programlisting">#define GST_ROUND_DOWN_8(num)  ((num)&amp;(~7))
 </pre>
 <p>
 Rounds an integer value down to the next multiple of 8.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>integer value to round down</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-ROUND-DOWN-16:CAPS"></a><h3>GST_ROUND_DOWN_16()</h3>
 <pre class="programlisting">#define GST_ROUND_DOWN_16(num) ((num)&amp;(~15))
 </pre>
 <p>
 Rounds an integer value down to the next multiple of 16.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>integer value to round down</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-ROUND-DOWN-32:CAPS"></a><h3>GST_ROUND_DOWN_32()</h3>
 <pre class="programlisting">#define GST_ROUND_DOWN_32(num) ((num)&amp;(~31))
 </pre>
 <p>
 Rounds an integer value down to the next multiple of 32.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>integer value to round down</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GST-ROUND-DOWN-64:CAPS"></a><h3>GST_ROUND_DOWN_64()</h3>
 <pre class="programlisting">#define GST_ROUND_DOWN_64(num) ((num)&amp;(~63))
 </pre>
 <p>
 Rounds an integer value down to the next multiple of 64.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>integer value to round down</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GDOUBLE-FROM-BE:CAPS"></a><h3>GDOUBLE_FROM_BE()</h3>
 <pre class="programlisting">#define GDOUBLE_FROM_BE(val) (GDOUBLE_TO_BE (val))
 </pre>
 <p>
 Convert 64-bit floating point value (double) from big endian byte order
 into native byte order.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>val</code></em> :</span></p></td>
 <td>value</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GDOUBLE-FROM-LE:CAPS"></a><h3>GDOUBLE_FROM_LE()</h3>
 <pre class="programlisting">#define GDOUBLE_FROM_LE(val) (GDOUBLE_TO_LE (val))
 </pre>
 <p>
 Convert 64-bit floating point value (double) from little endian byte order
 into native byte order.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>val</code></em> :</span></p></td>
 <td>value</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GDOUBLE-SWAP-LE-BE:CAPS"></a><h3>GDOUBLE_SWAP_LE_BE ()</h3>
 <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="returnvalue">gdouble</span></a>             GDOUBLE_SWAP_LE_BE                  (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> in</code></em>);</pre>
 <p>
 Swap byte order of a 64-bit floating point value (double).
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>in</code></em> :</span></p></td>
 <td>input value</td>
 </tr>
 <tr>
 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 <td>
 <em class="parameter"><code>in</code></em> byte-swapped.</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GDOUBLE-TO-BE:CAPS"></a><h3>GDOUBLE_TO_BE()</h3>
 <pre class="programlisting">#define GDOUBLE_TO_BE(val)   (GDOUBLE_SWAP_LE_BE (val))
 </pre>
 <p>
 Convert 64-bit floating point value (double) from native byte order into
 big endian byte order.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>val</code></em> :</span></p></td>
 <td>value</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GDOUBLE-TO-LE:CAPS"></a><h3>GDOUBLE_TO_LE()</h3>
 <pre class="programlisting">#define GDOUBLE_TO_LE(val)   ((gdouble) (val))
 </pre>
 <p>
 Convert 64-bit floating point value (double) from native byte order into
 little endian byte order.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>val</code></em> :</span></p></td>
 <td>value</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GFLOAT-FROM-BE:CAPS"></a><h3>GFLOAT_FROM_BE()</h3>
 <pre class="programlisting">#define GFLOAT_FROM_BE(val)  (GFLOAT_TO_BE (val))
 </pre>
 <p>
 Convert 32-bit floating point value (float) from big endian byte order
 into native byte order.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>val</code></em> :</span></p></td>
 <td>value</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GFLOAT-FROM-LE:CAPS"></a><h3>GFLOAT_FROM_LE()</h3>
 <pre class="programlisting">#define GFLOAT_FROM_LE(val)  (GFLOAT_TO_LE (val))
 </pre>
 <p>
 Convert 32-bit floating point value (float) from little endian byte order
 into native byte order.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>val</code></em> :</span></p></td>
 <td>value</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GFLOAT-SWAP-LE-BE:CAPS"></a><h3>GFLOAT_SWAP_LE_BE ()</h3>
 <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"><span class="returnvalue">gfloat</span></a>              GFLOAT_SWAP_LE_BE                   (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"><span class="type">gfloat</span></a> in</code></em>);</pre>
 <p>
 Swap byte order of a 32-bit floating point value (float).
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>in</code></em> :</span></p></td>
 <td>input value</td>
 </tr>
 <tr>
 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 <td>
 <em class="parameter"><code>in</code></em> byte-swapped.</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GFLOAT-TO-BE:CAPS"></a><h3>GFLOAT_TO_BE()</h3>
 <pre class="programlisting">#define GFLOAT_TO_BE(val)    (GFLOAT_SWAP_LE_BE (val))
 </pre>
 <p>
 Convert 32-bit floating point value (float) from native byte order into
 big endian byte order.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>val</code></em> :</span></p></td>
 <td>value</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GFLOAT-TO-LE:CAPS"></a><h3>GFLOAT_TO_LE()</h3>
 <pre class="programlisting">#define GFLOAT_TO_LE(val)    ((gfloat) (val))
 </pre>
 <p>
 Convert 32-bit floating point value (float) from native byte order into
 little endian byte order.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><em class="parameter"><code>val</code></em> :</span></p></td>
 <td>value</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-guint64-to-gdouble"></a><h3>gst_guint64_to_gdouble()</h3>
 <pre class="programlisting">#define         gst_guint64_to_gdouble(value)   gst_util_guint64_to_gdouble(value)
 </pre>
 <p>
 Convert <em class="parameter"><code>value</code></em> to a gdouble.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
 <td>the <span class="type">guint64</span> value to convert</td>
 </tr>
 <tr>
 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 <td>
 <em class="parameter"><code>value</code></em> converted to a <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a>.</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-gdouble-to-guint64"></a><h3>gst_gdouble_to_guint64()</h3>
 <pre class="programlisting">#define         gst_gdouble_to_guint64(value)   gst_util_gdouble_to_guint64(value)
 </pre>
 <p>
 Convert <em class="parameter"><code>value</code></em> to a guint64.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
 <td>the <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> value to convert</td>
 </tr>
 <tr>
 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 <td>
 <em class="parameter"><code>value</code></em> converted to a <span class="type">guint64</span>.</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-util-dump-mem"></a><h3>gst_util_dump_mem ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>                gst_util_dump_mem                   (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guchar"><span class="type">guchar</span></a> *mem</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> size</code></em>);</pre>
 <p>
 Dumps the memory block into a hex representation. Useful for debugging.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>mem</code></em> :</span></p></td>
 <td>a pointer to the memory to dump</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>size</code></em> :</span></p></td>
 <td>the size of the memory block to dump</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-util-uint64-scale"></a><h3>gst_util_uint64_scale ()</h3>
 <pre class="programlisting"><span class="returnvalue">guint64</span>             gst_util_uint64_scale               (<em class="parameter"><code><span class="type">guint64</span> val</code></em>,
                                                          <em class="parameter"><code><span class="type">guint64</span> num</code></em>,
                                                          <em class="parameter"><code><span class="type">guint64</span> denom</code></em>);</pre>
 <p>
 Scale <em class="parameter"><code>val</code></em> by the rational number <em class="parameter"><code>num</code></em> / <em class="parameter"><code>denom</code></em>, avoiding overflows and
 underflows and without loss of precision.
 </p>
 <p>
 This function can potentially be very slow if val and num are both
 greater than G_MAXUINT32.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>val</code></em> :</span></p></td>
 <td>the number to scale</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>the numerator of the scale ratio</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>denom</code></em> :</span></p></td>
 <td>the denominator of the scale ratio</td>
 </tr>
 <tr>
 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 <td>
 <em class="parameter"><code>val</code></em> * <em class="parameter"><code>num</code></em> / <em class="parameter"><code>denom</code></em>.  In the case of an overflow, this
 function returns G_MAXUINT64.  If the result is not exactly
 representable as an integer it is truncated.  See also
 <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-round" title="gst_util_uint64_scale_round ()"><code class="function">gst_util_uint64_scale_round()</code></a>, <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-ceil" title="gst_util_uint64_scale_ceil ()"><code class="function">gst_util_uint64_scale_ceil()</code></a>,
 <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-int" title="gst_util_uint64_scale_int ()"><code class="function">gst_util_uint64_scale_int()</code></a>, <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-int-round" title="gst_util_uint64_scale_int_round ()"><code class="function">gst_util_uint64_scale_int_round()</code></a>,
 <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-int-ceil" title="gst_util_uint64_scale_int_ceil ()"><code class="function">gst_util_uint64_scale_int_ceil()</code></a>.</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-util-uint64-scale-round"></a><h3>gst_util_uint64_scale_round ()</h3>
 <pre class="programlisting"><span class="returnvalue">guint64</span>             gst_util_uint64_scale_round         (<em class="parameter"><code><span class="type">guint64</span> val</code></em>,
                                                          <em class="parameter"><code><span class="type">guint64</span> num</code></em>,
                                                          <em class="parameter"><code><span class="type">guint64</span> denom</code></em>);</pre>
 <p>
 Scale <em class="parameter"><code>val</code></em> by the rational number <em class="parameter"><code>num</code></em> / <em class="parameter"><code>denom</code></em>, avoiding overflows and
 underflows and without loss of precision.
 </p>
 <p>
 This function can potentially be very slow if val and num are both
 greater than G_MAXUINT32.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>val</code></em> :</span></p></td>
 <td>the number to scale</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>the numerator of the scale ratio</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>denom</code></em> :</span></p></td>
 <td>the denominator of the scale ratio</td>
 </tr>
 <tr>
 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 <td>
 <em class="parameter"><code>val</code></em> * <em class="parameter"><code>num</code></em> / <em class="parameter"><code>denom</code></em>.  In the case of an overflow, this
 function returns G_MAXUINT64.  If the result is not exactly
 representable as an integer, it is rounded to the nearest integer
 (half-way cases are rounded up).  See also <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale" title="gst_util_uint64_scale ()"><code class="function">gst_util_uint64_scale()</code></a>,
 <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-ceil" title="gst_util_uint64_scale_ceil ()"><code class="function">gst_util_uint64_scale_ceil()</code></a>, <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-int" title="gst_util_uint64_scale_int ()"><code class="function">gst_util_uint64_scale_int()</code></a>,
 <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-int-round" title="gst_util_uint64_scale_int_round ()"><code class="function">gst_util_uint64_scale_int_round()</code></a>, <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-int-ceil" title="gst_util_uint64_scale_int_ceil ()"><code class="function">gst_util_uint64_scale_int_ceil()</code></a>.</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-util-uint64-scale-ceil"></a><h3>gst_util_uint64_scale_ceil ()</h3>
 <pre class="programlisting"><span class="returnvalue">guint64</span>             gst_util_uint64_scale_ceil          (<em class="parameter"><code><span class="type">guint64</span> val</code></em>,
                                                          <em class="parameter"><code><span class="type">guint64</span> num</code></em>,
                                                          <em class="parameter"><code><span class="type">guint64</span> denom</code></em>);</pre>
 <p>
 Scale <em class="parameter"><code>val</code></em> by the rational number <em class="parameter"><code>num</code></em> / <em class="parameter"><code>denom</code></em>, avoiding overflows and
 underflows and without loss of precision.
 </p>
 <p>
 This function can potentially be very slow if val and num are both
 greater than G_MAXUINT32.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>val</code></em> :</span></p></td>
 <td>the number to scale</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>the numerator of the scale ratio</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>denom</code></em> :</span></p></td>
 <td>the denominator of the scale ratio</td>
 </tr>
 <tr>
 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 <td>
 <em class="parameter"><code>val</code></em> * <em class="parameter"><code>num</code></em> / <em class="parameter"><code>denom</code></em>.  In the case of an overflow, this
 function returns G_MAXUINT64.  If the result is not exactly
 representable as an integer, it is rounded up.  See also
 <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale" title="gst_util_uint64_scale ()"><code class="function">gst_util_uint64_scale()</code></a>, <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-round" title="gst_util_uint64_scale_round ()"><code class="function">gst_util_uint64_scale_round()</code></a>,
 <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-int" title="gst_util_uint64_scale_int ()"><code class="function">gst_util_uint64_scale_int()</code></a>, <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-int-round" title="gst_util_uint64_scale_int_round ()"><code class="function">gst_util_uint64_scale_int_round()</code></a>,
 <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-int-ceil" title="gst_util_uint64_scale_int_ceil ()"><code class="function">gst_util_uint64_scale_int_ceil()</code></a>.</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-util-uint64-scale-int"></a><h3>gst_util_uint64_scale_int ()</h3>
 <pre class="programlisting"><span class="returnvalue">guint64</span>             gst_util_uint64_scale_int           (<em class="parameter"><code><span class="type">guint64</span> val</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> num</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> denom</code></em>);</pre>
 <p>
 Scale <em class="parameter"><code>val</code></em> by the rational number <em class="parameter"><code>num</code></em> / <em class="parameter"><code>denom</code></em>, avoiding overflows and
 underflows and without loss of precision.  <em class="parameter"><code>num</code></em> must be non-negative and
 <em class="parameter"><code>denom</code></em> must be positive.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>val</code></em> :</span></p></td>
 <td>guint64 (such as a <a class="link" href="GstClock.html#GstClockTime" title="GstClockTime"><span class="type">GstClockTime</span></a>) to scale.</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>numerator of the scale factor.</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>denom</code></em> :</span></p></td>
 <td>denominator of the scale factor.</td>
 </tr>
 <tr>
 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 <td>
 <em class="parameter"><code>val</code></em> * <em class="parameter"><code>num</code></em> / <em class="parameter"><code>denom</code></em>.  In the case of an overflow, this
 function returns G_MAXUINT64.  If the result is not exactly
 representable as an integer, it is truncated.  See also
 <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-int-round" title="gst_util_uint64_scale_int_round ()"><code class="function">gst_util_uint64_scale_int_round()</code></a>, <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-int-ceil" title="gst_util_uint64_scale_int_ceil ()"><code class="function">gst_util_uint64_scale_int_ceil()</code></a>,
 <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale" title="gst_util_uint64_scale ()"><code class="function">gst_util_uint64_scale()</code></a>, <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-round" title="gst_util_uint64_scale_round ()"><code class="function">gst_util_uint64_scale_round()</code></a>,
 <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-ceil" title="gst_util_uint64_scale_ceil ()"><code class="function">gst_util_uint64_scale_ceil()</code></a>.</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-util-uint64-scale-int-round"></a><h3>gst_util_uint64_scale_int_round ()</h3>
 <pre class="programlisting"><span class="returnvalue">guint64</span>             gst_util_uint64_scale_int_round     (<em class="parameter"><code><span class="type">guint64</span> val</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> num</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> denom</code></em>);</pre>
 <p>
 Scale <em class="parameter"><code>val</code></em> by the rational number <em class="parameter"><code>num</code></em> / <em class="parameter"><code>denom</code></em>, avoiding overflows and
 underflows and without loss of precision.  <em class="parameter"><code>num</code></em> must be non-negative and
 <em class="parameter"><code>denom</code></em> must be positive.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>val</code></em> :</span></p></td>
 <td>guint64 (such as a <a class="link" href="GstClock.html#GstClockTime" title="GstClockTime"><span class="type">GstClockTime</span></a>) to scale.</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>numerator of the scale factor.</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>denom</code></em> :</span></p></td>
 <td>denominator of the scale factor.</td>
 </tr>
 <tr>
 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 <td>
 <em class="parameter"><code>val</code></em> * <em class="parameter"><code>num</code></em> / <em class="parameter"><code>denom</code></em>.  In the case of an overflow, this
 function returns G_MAXUINT64.  If the result is not exactly
 representable as an integer, it is rounded to the nearest integer
 (half-way cases are rounded up).  See also <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-int" title="gst_util_uint64_scale_int ()"><code class="function">gst_util_uint64_scale_int()</code></a>,
 <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-int-ceil" title="gst_util_uint64_scale_int_ceil ()"><code class="function">gst_util_uint64_scale_int_ceil()</code></a>, <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale" title="gst_util_uint64_scale ()"><code class="function">gst_util_uint64_scale()</code></a>,
 <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-round" title="gst_util_uint64_scale_round ()"><code class="function">gst_util_uint64_scale_round()</code></a>, <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-ceil" title="gst_util_uint64_scale_ceil ()"><code class="function">gst_util_uint64_scale_ceil()</code></a>.</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-util-uint64-scale-int-ceil"></a><h3>gst_util_uint64_scale_int_ceil ()</h3>
 <pre class="programlisting"><span class="returnvalue">guint64</span>             gst_util_uint64_scale_int_ceil      (<em class="parameter"><code><span class="type">guint64</span> val</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> num</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> denom</code></em>);</pre>
 <p>
 Scale <em class="parameter"><code>val</code></em> by the rational number <em class="parameter"><code>num</code></em> / <em class="parameter"><code>denom</code></em>, avoiding overflows and
 underflows and without loss of precision.  <em class="parameter"><code>num</code></em> must be non-negative and
 <em class="parameter"><code>denom</code></em> must be positive.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>val</code></em> :</span></p></td>
 <td>guint64 (such as a <a class="link" href="GstClock.html#GstClockTime" title="GstClockTime"><span class="type">GstClockTime</span></a>) to scale.</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>num</code></em> :</span></p></td>
 <td>numerator of the scale factor.</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>denom</code></em> :</span></p></td>
 <td>denominator of the scale factor.</td>
 </tr>
 <tr>
 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 <td>
 <em class="parameter"><code>val</code></em> * <em class="parameter"><code>num</code></em> / <em class="parameter"><code>denom</code></em>.  In the case of an overflow, this
 function returns G_MAXUINT64.  If the result is not exactly
 representable as an integer, it is rounded up.  See also
 <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-int" title="gst_util_uint64_scale_int ()"><code class="function">gst_util_uint64_scale_int()</code></a>, <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-int-round" title="gst_util_uint64_scale_int_round ()"><code class="function">gst_util_uint64_scale_int_round()</code></a>,
 <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale" title="gst_util_uint64_scale ()"><code class="function">gst_util_uint64_scale()</code></a>, <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-round" title="gst_util_uint64_scale_round ()"><code class="function">gst_util_uint64_scale_round()</code></a>,
 <a class="link" href="gstreamer-GstUtils.html#gst-util-uint64-scale-ceil" title="gst_util_uint64_scale_ceil ()"><code class="function">gst_util_uint64_scale_ceil()</code></a>.</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-util-greatest-common-divisor"></a><h3>gst_util_greatest_common_divisor ()</h3>
 <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                gst_util_greatest_common_divisor    (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> a</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> b</code></em>);</pre>
 <p>
 Calculates the greatest common divisor of <em class="parameter"><code>a</code></em>
 and <em class="parameter"><code>b</code></em>.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>a</code></em> :</span></p></td>
 <td>First value as <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>
 </td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>b</code></em> :</span></p></td>
 <td>Second value as <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>
 </td>
 </tr>
 <tr>
 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 <td>Greatest common divisor of <em class="parameter"><code>a</code></em> and <em class="parameter"><code>b</code></em>
 </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-util-greatest-common-divisor-int64"></a><h3>gst_util_greatest_common_divisor_int64 ()</h3>
 <pre class="programlisting"><span class="returnvalue">gint64</span>              gst_util_greatest_common_divisor_int64
                                                         (<em class="parameter"><code><span class="type">gint64</span> a</code></em>,
                                                          <em class="parameter"><code><span class="type">gint64</span> b</code></em>);</pre>
 <p>
 Calculates the greatest common divisor of <em class="parameter"><code>a</code></em>
 and <em class="parameter"><code>b</code></em>.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>a</code></em> :</span></p></td>
 <td>First value as <span class="type">gint64</span>
 </td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>b</code></em> :</span></p></td>
 <td>Second value as <span class="type">gint64</span>
 </td>
 </tr>
 <tr>
 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 <td>Greatest common divisor of <em class="parameter"><code>a</code></em> and <em class="parameter"><code>b</code></em>
 </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-util-fraction-to-double"></a><h3>gst_util_fraction_to_double ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>                gst_util_fraction_to_double         (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> src_n</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> src_d</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> *dest</code></em>);</pre>
 <p>
 Transforms a fraction to a <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a>.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>src_n</code></em> :</span></p></td>
 <td>Fraction numerator as <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>
 </td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>src_d</code></em> :</span></p></td>
 <td>Fraction denominator <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>
 </td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>dest</code></em> :</span></p></td>
 <td>pointer to a <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> for the result. <span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span>
 </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-util-double-to-fraction"></a><h3>gst_util_double_to_fraction ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>                gst_util_double_to_fraction         (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> src</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *dest_n</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *dest_d</code></em>);</pre>
 <p>
 Transforms a <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> to a fraction and simplifies
 the result.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>src</code></em> :</span></p></td>
 <td>
 <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> to transform</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>dest_n</code></em> :</span></p></td>
 <td>pointer to a <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> to hold the result numerator. <span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span>
 </td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>dest_d</code></em> :</span></p></td>
 <td>pointer to a <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> to hold the result denominator. <span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span>
 </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-util-fraction-multiply"></a><h3>gst_util_fraction_multiply ()</h3>
 <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            gst_util_fraction_multiply          (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> a_n</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> a_d</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> b_n</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> b_d</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *res_n</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *res_d</code></em>);</pre>
 <p>
 Multiplies the fractions <em class="parameter"><code>a_n</code></em>/<em class="parameter"><code>a_d</code></em> and <em class="parameter"><code>b_n</code></em>/<em class="parameter"><code>b_d</code></em> and stores
 the result in <em class="parameter"><code>res_n</code></em> and <em class="parameter"><code>res_d</code></em>.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>a_n</code></em> :</span></p></td>
 <td>Numerator of first value</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>a_d</code></em> :</span></p></td>
 <td>Denominator of first value</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>b_n</code></em> :</span></p></td>
 <td>Numerator of second value</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>b_d</code></em> :</span></p></td>
 <td>Denominator of second value</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>res_n</code></em> :</span></p></td>
 <td>Pointer to <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> to hold the result numerator. <span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span>
 </td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>res_d</code></em> :</span></p></td>
 <td>Pointer to <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> to hold the result denominator. <span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span>
 </td>
 </tr>
 <tr>
 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 <td>
 <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> on overflow, <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> otherwise.</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-util-fraction-add"></a><h3>gst_util_fraction_add ()</h3>
 <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            gst_util_fraction_add               (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> a_n</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> a_d</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> b_n</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> b_d</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *res_n</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> *res_d</code></em>);</pre>
 <p>
 Adds the fractions <em class="parameter"><code>a_n</code></em>/<em class="parameter"><code>a_d</code></em> and <em class="parameter"><code>b_n</code></em>/<em class="parameter"><code>b_d</code></em> and stores
 the result in <em class="parameter"><code>res_n</code></em> and <em class="parameter"><code>res_d</code></em>.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>a_n</code></em> :</span></p></td>
 <td>Numerator of first value</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>a_d</code></em> :</span></p></td>
 <td>Denominator of first value</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>b_n</code></em> :</span></p></td>
 <td>Numerator of second value</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>b_d</code></em> :</span></p></td>
 <td>Denominator of second value</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>res_n</code></em> :</span></p></td>
 <td>Pointer to <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> to hold the result numerator. <span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span>
 </td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>res_d</code></em> :</span></p></td>
 <td>Pointer to <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> to hold the result denominator. <span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span>
 </td>
 </tr>
 <tr>
 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 <td>
 <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> on overflow, <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> otherwise.</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-util-fraction-compare"></a><h3>gst_util_fraction_compare ()</h3>
 <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                gst_util_fraction_compare           (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> a_n</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> a_d</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> b_n</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> b_d</code></em>);</pre>
 <p>
 Compares the fractions <em class="parameter"><code>a_n</code></em>/<em class="parameter"><code>a_d</code></em> and <em class="parameter"><code>b_n</code></em>/<em class="parameter"><code>b_d</code></em> and returns
 -1 if a &lt; b, 0 if a = b and 1 if a &gt; b.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>a_n</code></em> :</span></p></td>
 <td>Numerator of first value</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>a_d</code></em> :</span></p></td>
 <td>Denominator of first value</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>b_n</code></em> :</span></p></td>
 <td>Numerator of second value</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>b_d</code></em> :</span></p></td>
 <td>Denominator of second value</td>
 </tr>
 <tr>
 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 <td>-1 if a &lt; b; 0 if a = b; 1 if a &gt; b.</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-util-seqnum-next"></a><h3>gst_util_seqnum_next ()</h3>
 <pre class="programlisting"><span class="returnvalue">guint32</span>             gst_util_seqnum_next                (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
 <p>
 Return a constantly incrementing sequence number.
 </p>
 <p>
 This function is used internally to GStreamer to be able to determine which
 events and messages are "the same". For example, elements may set the seqnum
 on a segment-done message to be the same as that of the last seek event, to
 indicate that event and the message correspond to the same segment.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 <td>A constantly incrementing 32-bit unsigned integer, which might
 overflow back to 0 at some point. Use <a class="link" href="gstreamer-GstUtils.html#gst-util-seqnum-compare" title="gst_util_seqnum_compare ()"><code class="function">gst_util_seqnum_compare()</code></a> to make sure
 you handle wraparound correctly.</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-util-seqnum-compare"></a><h3>gst_util_seqnum_compare ()</h3>
 <pre class="programlisting"><span class="returnvalue">gint32</span>              gst_util_seqnum_compare             (<em class="parameter"><code><span class="type">guint32</span> s1</code></em>,
                                                          <em class="parameter"><code><span class="type">guint32</span> s2</code></em>);</pre>
 <p>
 Compare two sequence numbers, handling wraparound.
 </p>
 <p>
 The current implementation just returns (gint32)(<em class="parameter"><code>s1</code></em> - <em class="parameter"><code>s2</code></em>).
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>s1</code></em> :</span></p></td>
 <td>A sequence number.</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>s2</code></em> :</span></p></td>
 <td>Another sequence number.</td>
 </tr>
 <tr>
 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 <td>A negative number if <em class="parameter"><code>s1</code></em> is before <em class="parameter"><code>s2</code></em>, 0 if they are equal, or a
 positive number if <em class="parameter"><code>s1</code></em> is after <em class="parameter"><code>s2</code></em>.</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-util-group-id-next"></a><h3>gst_util_group_id_next ()</h3>
 <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>               gst_util_group_id_next              (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-util-set-object-arg"></a><h3>gst_util_set_object_arg ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>                gst_util_set_object_arg             (<em class="parameter"><code><a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObject"><span class="type">GObject</span></a> *object</code></em>,
                                                          <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>,
                                                          <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *value</code></em>);</pre>
 <p>
 Convertes the string value to the type of the objects argument and
 sets the argument with it.
 </p>
 <p>
 Note that this function silently returns if <em class="parameter"><code>object</code></em> has no property named
 <em class="parameter"><code>name</code></em> or when <em class="parameter"><code>value</code></em> cannot be converted to the type of the property.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>object</code></em> :</span></p></td>
 <td>the object to set the argument of</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
 <td>the name of the argument to set</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
 <td>the string value to set</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-util-set-value-from-string"></a><h3>gst_util_set_value_from_string ()</h3>
 <pre class="programlisting"><span class="returnvalue">void</span>                gst_util_set_value_from_string      (<em class="parameter"><code><a href="http://library.gnome.org/devel/gobject/unstable/gobject-Generic-values.html#GValue"><span class="type">GValue</span></a> *value</code></em>,
                                                          <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *value_str</code></em>);</pre>
 <p>
 Converts the string to the type of the value and
 sets the value with it.
 </p>
 <p>
 Note that this function is dangerous as it does not return any indication
 if the conversion worked or not.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
 <td>the value to set. <span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym> caller-allocates]</span>
 </td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>value_str</code></em> :</span></p></td>
 <td>the string to get the value from</td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-util-get-timestamp"></a><h3>gst_util_get_timestamp ()</h3>
 <pre class="programlisting"><a class="link" href="GstClock.html#GstClockTime" title="GstClockTime"><span class="returnvalue">GstClockTime</span></a>        gst_util_get_timestamp              (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
 <p>
 Get a timestamp as GstClockTime to be used for interval measurements.
 The timestamp should not be interpreted in any other way.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody><tr>
 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 <td>the timestamp</td>
 </tr></tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="GstSearchMode"></a><h3>enum GstSearchMode</h3>
 <pre class="programlisting">typedef enum {
   GST_SEARCH_MODE_EXACT = 0,
   GST_SEARCH_MODE_BEFORE,
   GST_SEARCH_MODE_AFTER
 } GstSearchMode;
 </pre>
 <p>
 The different search modes.
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><a name="GST-SEARCH-MODE-EXACT:CAPS"></a><span class="term"><code class="literal">GST_SEARCH_MODE_EXACT</code></span></p></td>
 <td>Only search for exact matches.
 </td>
 </tr>
 <tr>
 <td><p><a name="GST-SEARCH-MODE-BEFORE:CAPS"></a><span class="term"><code class="literal">GST_SEARCH_MODE_BEFORE</code></span></p></td>
 <td>Search for an exact match or the element just before.
 </td>
 </tr>
 <tr>
 <td><p><a name="GST-SEARCH-MODE-AFTER:CAPS"></a><span class="term"><code class="literal">GST_SEARCH_MODE_AFTER</code></span></p></td>
 <td>Search for an exact match or the element just after.
 </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 <hr>
 <div class="refsect2">
 <a name="gst-util-array-binary-search"></a><h3>gst_util_array_binary_search ()</h3>
 <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a>            gst_util_array_binary_search        (<em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> array</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> num_elements</code></em>,
                                                          <em class="parameter"><code><span class="type">gsize</span> element_size</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Doubly-Linked-Lists.html#GCompareDataFunc"><span class="type">GCompareDataFunc</span></a> search_func</code></em>,
                                                          <em class="parameter"><code><a class="link" href="gstreamer-GstUtils.html#GstSearchMode" title="enum GstSearchMode"><span class="type">GstSearchMode</span></a> mode</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gconstpointer"><span class="type">gconstpointer</span></a> search_data</code></em>,
                                                          <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
 <p>
 Searches inside <em class="parameter"><code>array</code></em> for <em class="parameter"><code>search_data</code></em> by using the comparison function
 <em class="parameter"><code>search_func</code></em>. <em class="parameter"><code>array</code></em> must be sorted ascending.
 </p>
 <p>
 As <em class="parameter"><code>search_data</code></em> is always passed as second argument to <em class="parameter"><code>search_func</code></em> it's
 not required that <em class="parameter"><code>search_data</code></em> has the same type as the array elements.
 </p>
 <p>
 The complexity of this search function is O(log (num_elements)).
 </p>
 <div class="variablelist"><table border="0" class="variablelist">
 <colgroup>
 <col align="left" valign="top">
 <col>
 </colgroup>
 <tbody>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>array</code></em> :</span></p></td>
 <td>the sorted input array</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>num_elements</code></em> :</span></p></td>
 <td>number of elements in the array</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>element_size</code></em> :</span></p></td>
 <td>size of every element in bytes</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>search_func</code></em> :</span></p></td>
 <td>function to compare two elements, <em class="parameter"><code>search_data</code></em> will always be passed as second argument. <span class="annotation">[<acronym title="The callback is valid only during the call to the method."><span class="acronym">scope call</span></acronym>]</span>
 </td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>mode</code></em> :</span></p></td>
 <td>search mode that should be used</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>search_data</code></em> :</span></p></td>
 <td>element that should be found</td>
 </tr>
 <tr>
 <td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
 <td>data to pass to <em class="parameter"><code>search_func</code></em>. <span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym>]</span>
 </td>
 </tr>
 <tr>
 <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
 <td>The address of the found element or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if nothing was found. <span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span>
 </td>
 </tr>
 </tbody>
 </table></div>
 </div>
 </div>
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