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  • Committer: Package Import Robot
  • Author(s): Sebastian Dröge
  • Date: 2012-05-21 11:14:06 UTC
  • mfrom: (1.1.1)
  • Revision ID: package-import@ubuntu.com-20120521111406-1wfas0o9fdaxjyo8
Tags: 0.11.91-1
* New upstream release, "I will give you five magic beans!":
  + debian/libgstreamer.symbols:
    - Update symbols file.
* debian/libgstreamer-dev.install:
  + Don't ship useless .la file for the core plugins.
  + Don't ship .a and .la files for the library.
* debian/control.in:
  + Update debhelper dependency version and Standards-Version.

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docs/libs/html/GstBaseSink.html
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<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="GstBaseSink.html#gst-base-sink-query-latency" title="gst_base_sink_query_latency ()">gst_base_sink_query_latency</a>         (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>,
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                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> *live</code></em>,
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                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> *upstream_live</code></em>,
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                                                         <em class="parameter"><code><a href="../gstreamer-1.0/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> *min_latency</code></em>,
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                                                         <em class="parameter"><code><a href="../gstreamer-1.0/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> *max_latency</code></em>);
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<a href="../gstreamer-1.0/GstClock.html#GstClockTime"><span class="returnvalue">GstClockTime</span></a>        <a class="link" href="GstBaseSink.html#gst-base-sink-get-latency" title="gst_base_sink_get_latency ()">gst_base_sink_get_latency</a>           (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>);
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<a href="../gstreamer-1.0/GstPad.html#GstFlowReturn"><span class="returnvalue">GstFlowReturn</span></a>       <a class="link" href="GstBaseSink.html#gst-base-sink-do-preroll" title="gst_base_sink_do_preroll ()">gst_base_sink_do_preroll</a>            (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>,
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                                                         <em class="parameter"><code><a href="../gstreamer-1.0/gstreamer-GstMiniObject.html#GstMiniObject"><span class="type">GstMiniObject</span></a> *obj</code></em>);
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<a href="../gstreamer-1.0/GstPad.html#GstFlowReturn"><span class="returnvalue">GstFlowReturn</span></a>       <a class="link" href="GstBaseSink.html#gst-base-sink-wait-preroll" title="gst_base_sink_wait_preroll ()">gst_base_sink_wait_preroll</a>          (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>);
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<a href="../gstreamer-1.0/GstClock.html#GstClockReturn"><span class="returnvalue">GstClockReturn</span></a>      <a class="link" href="GstBaseSink.html#gst-base-sink-wait-clock" title="gst_base_sink_wait_clock ()">gst_base_sink_wait_clock</a>            (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>,
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                                                         <em class="parameter"><code><a href="../gstreamer-1.0/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> time</code></em>,
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                                                         <em class="parameter"><code><a href="../gstreamer-1.0/GstClock.html#GstClockTimeDiff"><span class="type">GstClockTimeDiff</span></a> *jitter</code></em>);
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<a href="../gstreamer-1.0/GstPad.html#GstFlowReturn"><span class="returnvalue">GstFlowReturn</span></a>       <a class="link" href="GstBaseSink.html#gst-base-sink-wait-eos" title="gst_base_sink_wait_eos ()">gst_base_sink_wait_eos</a>              (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>,
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                                                         <em class="parameter"><code><a href="../gstreamer-1.0/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> time</code></em>,
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                                                         <em class="parameter"><code><a href="../gstreamer-1.0/GstClock.html#GstClockTimeDiff"><span class="type">GstClockTimeDiff</span></a> *jitter</code></em>);
 
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                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> *min_latency</code></em>,
 
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                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> *max_latency</code></em>);
 
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<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="returnvalue">GstClockTime</span></a>        <a class="link" href="GstBaseSink.html#gst-base-sink-get-latency" title="gst_base_sink_get_latency ()">gst_base_sink_get_latency</a>           (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>);
 
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<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GstFlowReturn"><span class="returnvalue">GstFlowReturn</span></a>       <a class="link" href="GstBaseSink.html#gst-base-sink-do-preroll" title="gst_base_sink_do_preroll ()">gst_base_sink_do_preroll</a>            (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>,
 
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                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMiniObject.html#GstMiniObject"><span class="type">GstMiniObject</span></a> *obj</code></em>);
 
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<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GstFlowReturn"><span class="returnvalue">GstFlowReturn</span></a>       <a class="link" href="GstBaseSink.html#gst-base-sink-wait-preroll" title="gst_base_sink_wait_preroll ()">gst_base_sink_wait_preroll</a>          (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>);
 
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<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockReturn"><span class="returnvalue">GstClockReturn</span></a>      <a class="link" href="GstBaseSink.html#gst-base-sink-wait-clock" title="gst_base_sink_wait_clock ()">gst_base_sink_wait_clock</a>            (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>,
 
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                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> time</code></em>,
 
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                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTimeDiff"><span class="type">GstClockTimeDiff</span></a> *jitter</code></em>);
 
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<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GstFlowReturn"><span class="returnvalue">GstFlowReturn</span></a>       <a class="link" href="GstBaseSink.html#gst-base-sink-wait-eos" title="gst_base_sink_wait_eos ()">gst_base_sink_wait_eos</a>              (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>,
 
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                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> time</code></em>,
 
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                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTimeDiff"><span class="type">GstClockTimeDiff</span></a> *jitter</code></em>);
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<span class="returnvalue">void</span>                <a class="link" href="GstBaseSink.html#gst-base-sink-set-sync" title="gst_base_sink_set_sync ()">gst_base_sink_set_sync</a>              (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>,
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                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> sync</code></em>);
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<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="GstBaseSink.html#gst-base-sink-get-sync" title="gst_base_sink_get_sync ()">gst_base_sink_get_sync</a>              (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>);
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                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> enabled</code></em>);
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<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="GstBaseSink.html#gst-base-sink-is-async-enabled" title="gst_base_sink_is_async_enabled ()">gst_base_sink_is_async_enabled</a>      (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>);
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<span class="returnvalue">void</span>                <a class="link" href="GstBaseSink.html#gst-base-sink-set-ts-offset" title="gst_base_sink_set_ts_offset ()">gst_base_sink_set_ts_offset</a>         (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>,
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                                                         <em class="parameter"><code><a href="../gstreamer-1.0/GstClock.html#GstClockTimeDiff"><span class="type">GstClockTimeDiff</span></a> offset</code></em>);
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<a href="../gstreamer-1.0/GstClock.html#GstClockTimeDiff"><span class="returnvalue">GstClockTimeDiff</span></a>    <a class="link" href="GstBaseSink.html#gst-base-sink-get-ts-offset" title="gst_base_sink_get_ts_offset ()">gst_base_sink_get_ts_offset</a>         (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>);
 
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                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTimeDiff"><span class="type">GstClockTimeDiff</span></a> offset</code></em>);
 
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<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTimeDiff"><span class="returnvalue">GstClockTimeDiff</span></a>    <a class="link" href="GstBaseSink.html#gst-base-sink-get-ts-offset" title="gst_base_sink_get_ts_offset ()">gst_base_sink_get_ts_offset</a>         (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>);
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<span class="returnvalue">void</span>                <a class="link" href="GstBaseSink.html#gst-base-sink-set-render-delay" title="gst_base_sink_set_render_delay ()">gst_base_sink_set_render_delay</a>      (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>,
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                                                         <em class="parameter"><code><a href="../gstreamer-1.0/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> delay</code></em>);
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<a href="../gstreamer-1.0/GstClock.html#GstClockTime"><span class="returnvalue">GstClockTime</span></a>        <a class="link" href="GstBaseSink.html#gst-base-sink-get-render-delay" title="gst_base_sink_get_render_delay ()">gst_base_sink_get_render_delay</a>      (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>);
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<a href="../gstreamer-1.0/gstreamer-GstSample.html#GstSample"><span class="returnvalue">GstSample</span></a> *         <a class="link" href="GstBaseSink.html#gst-base-sink-get-last-sample" title="gst_base_sink_get_last_sample ()">gst_base_sink_get_last_sample</a>       (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>);
 
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                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> delay</code></em>);
 
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<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="returnvalue">GstClockTime</span></a>        <a class="link" href="GstBaseSink.html#gst-base-sink-get-render-delay" title="gst_base_sink_get_render_delay ()">gst_base_sink_get_render_delay</a>      (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>);
 
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<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstSample.html#GstSample"><span class="returnvalue">GstSample</span></a> *         <a class="link" href="GstBaseSink.html#gst-base-sink-get-last-sample" title="gst_base_sink_get_last_sample ()">gst_base_sink_get_last_sample</a>       (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>);
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<span class="returnvalue">void</span>                <a class="link" href="GstBaseSink.html#gst-base-sink-set-blocksize" title="gst_base_sink_set_blocksize ()">gst_base_sink_set_blocksize</a>         (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>,
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                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> blocksize</code></em>);
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<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>               <a class="link" href="GstBaseSink.html#gst-base-sink-get-blocksize" title="gst_base_sink_get_blocksize ()">gst_base_sink_get_blocksize</a>         (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>);
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<pre class="synopsis">
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  <a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObject">GObject</a>
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   +----<a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
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         +----<a href="../gstreamer-1.0/GstObject.html">GstObject</a>
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               +----<a href="../gstreamer-1.0/GstElement.html">GstElement</a>
 
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         +----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstObject.html">GstObject</a>
 
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               +----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html">GstElement</a>
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                     +----GstBaseSink
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</pre>
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</div>
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  "<a class="link" href="GstBaseSink.html#GstBaseSink--async" title='The "async" property'>async</a>"                    <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>              : Read / Write
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  "<a class="link" href="GstBaseSink.html#GstBaseSink--blocksize" title='The "blocksize" property'>blocksize</a>"                <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a>                 : Read / Write
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  "<a class="link" href="GstBaseSink.html#GstBaseSink--enable-last-sample" title='The "enable-last-sample" property'>enable-last-sample</a>"       <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>              : Read / Write
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  "<a class="link" href="GstBaseSink.html#GstBaseSink--last-sample" title='The "last-sample" property'>last-sample</a>"              <a href="../gstreamer-1.0/gstreamer-GstSample.html#GstSample"><span class="type">GstSample</span></a>*            : Read
 
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  "<a class="link" href="GstBaseSink.html#GstBaseSink--last-sample" title='The "last-sample" property'>last-sample</a>"              <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstSample.html#GstSample"><span class="type">GstSample</span></a>*            : Read
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  "<a class="link" href="GstBaseSink.html#GstBaseSink--max-lateness" title='The "max-lateness" property'>max-lateness</a>"             <span class="type">gint64</span>                : Read / Write
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  "<a class="link" href="GstBaseSink.html#GstBaseSink--qos" title='The "qos" property'>qos</a>"                      <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>              : Read / Write
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  "<a class="link" href="GstBaseSink.html#GstBaseSink--render-delay" title='The "render-delay" property'>render-delay</a>"             <span class="type">guint64</span>               : Read / Write
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<a name="GstBaseSink.description"></a><h2>Description</h2>
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<p>
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<a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> is the base class for sink elements in GStreamer, such as
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xvimagesink or filesink. It is a layer on top of <a href="../gstreamer-1.0/GstElement.html"><span class="type">GstElement</span></a> that provides a
 
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xvimagesink or filesink. It is a layer on top of <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html"><span class="type">GstElement</span></a> that provides a
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simplified interface to plugin writers. <a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> handles many details
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for you, for example: preroll, clock synchronization, state changes,
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activation in push or pull mode, and queries.
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</p>
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<p>
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In most cases, when writing sink elements, there is no need to implement
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class methods from <a href="../gstreamer-1.0/GstElement.html"><span class="type">GstElement</span></a> or to set functions on pads, because the
 
136
class methods from <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html"><span class="type">GstElement</span></a> or to set functions on pads, because the
137
137
<a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> infrastructure should be sufficient.
138
138
</p>
139
139
<p>
162
162
<span class="gtkdoc opt">{</span>
163
163
  GstElementClass <span class="gtkdoc opt">*</span>gstelement_class <span class="gtkdoc opt">=</span> <span class="function">GST_ELEMENT_CLASS</span> <span class="gtkdoc opt">(</span>klass<span class="gtkdoc opt">);</span>
164
164
 
165
 
  <span class="gtkdoc slc">// sinktemplate should be a <a href="../gstreamer-1.0/GstPadTemplate.html#GstStaticPadTemplate">GstStaticPadTemplate</a> with direction</span>
166
 
  <span class="gtkdoc slc">// <a href="../gstreamer-1.0/GstPad.html#GST-PAD-SINK:CAPS">GST_PAD_SINK</a> and name &quot;sink&quot;</span>
167
 
  <span class="function"><a href="../gstreamer-1.0/GstElement.html#gst-element-class-add-pad-template">gst_element_class_add_pad_template</a></span> <span class="gtkdoc opt">(</span>gstelement_class<span class="gtkdoc opt">,</span>
168
 
      <span class="function"><a href="../gstreamer-1.0/GstPadTemplate.html#gst-static-pad-template-get">gst_static_pad_template_get</a></span> <span class="gtkdoc opt">(&amp;</span>sinktemplate<span class="gtkdoc opt">));</span>
 
165
  <span class="gtkdoc slc">// sinktemplate should be a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPadTemplate.html#GstStaticPadTemplate">GstStaticPadTemplate</a> with direction</span>
 
166
  <span class="gtkdoc slc">// <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GST-PAD-SINK:CAPS">GST_PAD_SINK</a> and name &quot;sink&quot;</span>
 
167
  <span class="function"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html#gst-element-class-add-pad-template">gst_element_class_add_pad_template</a></span> <span class="gtkdoc opt">(</span>gstelement_class<span class="gtkdoc opt">,</span>
 
168
      <span class="function"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPadTemplate.html#gst-static-pad-template-get">gst_static_pad_template_get</a></span> <span class="gtkdoc opt">(&amp;</span>sinktemplate<span class="gtkdoc opt">));</span>
169
169
  <span class="gtkdoc slc">// see <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElementFactory.html#GstElementDetails">GstElementDetails</a></span>
170
170
  <span class="function"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html#gst-element-class-set-details">gst_element_class_set_details</a></span> <span class="gtkdoc opt">(</span>gstelement_class<span class="gtkdoc opt">, &amp;</span>details<span class="gtkdoc opt">);</span>
171
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<span class="gtkdoc opt">}</span></pre></td>
178
178
</p>
179
179
<p>
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180
<a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> will handle the prerolling correctly. This means that it will
181
 
return <a href="../gstreamer-1.0/GstElement.html#GST-STATE-CHANGE-ASYNC:CAPS"><span class="type">GST_STATE_CHANGE_ASYNC</span></a> from a state change to PAUSED until the first
 
181
return <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html#GST-STATE-CHANGE-ASYNC:CAPS"><span class="type">GST_STATE_CHANGE_ASYNC</span></a> from a state change to PAUSED until the first
182
182
buffer arrives in this element. The base class will call the
183
183
<a class="link" href="GstBaseSink.html#GstBaseSinkClass.preroll"><code class="function">GstBaseSinkClass.preroll()</code></a> vmethod with this preroll buffer and will then
184
184
commit the state change to the next asynchronously pending state.
186
186
<p>
187
187
When the element is set to PLAYING, <a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> will synchronise on the
188
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clock using the times returned from <a class="link" href="GstBaseSink.html#GstBaseSinkClass.get-times"><code class="function">GstBaseSinkClass.get_times()</code></a>. If this
189
 
function returns <a href="../gstreamer-1.0/GstClock.html#GST-CLOCK-TIME-NONE:CAPS"><span class="type">GST_CLOCK_TIME_NONE</span></a> for the start time, no synchronisation
 
189
function returns <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GST-CLOCK-TIME-NONE:CAPS"><span class="type">GST_CLOCK_TIME_NONE</span></a> for the start time, no synchronisation
190
190
will be done. Synchronisation can be disabled entirely by setting the object
191
191
<a class="link" href="GstBaseSink.html#GstBaseSink--sync" title='The "sync" property'><span class="type">"sync"</span></a> property to <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a>.
192
192
</p>
218
218
</p>
219
219
<p>
220
220
<a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> will by default report the current playback position in
221
 
<a href="../gstreamer-1.0/gstreamer-GstFormat.html#GST-FORMAT-TIME:CAPS"><span class="type">GST_FORMAT_TIME</span></a> based on the current clock time and segment information.
 
221
<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstFormat.html#GST-FORMAT-TIME:CAPS"><span class="type">GST_FORMAT_TIME</span></a> based on the current clock time and segment information.
222
222
If no clock has been set on the element, the query will be forwarded
223
223
upstream.
224
224
</p>
345
345
<col align="left" valign="top">
346
346
<tbody>
347
347
<tr>
348
 
<td><p><span class="term"><a href="../gstreamer-1.0/GstElement.html#GstElementClass"><span class="type">GstElementClass</span></a> <em class="structfield"><code><a name="GstBaseSinkClass.parent-class"></a>parent_class</code></em>;</span></p></td>
 
348
<td><p><span class="term"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html#GstElementClass"><span class="type">GstElementClass</span></a> <em class="structfield"><code><a name="GstBaseSinkClass.parent-class"></a>parent_class</code></em>;</span></p></td>
349
349
<td>Element parent class</td>
350
350
</tr>
351
351
<tr>
398
398
</tr>
399
399
<tr>
400
400
<td><p><span class="term"><em class="structfield"><code><a name="GstBaseSinkClass.query"></a>query</code></em> ()</span></p></td>
401
 
<td>perform a <a href="../gstreamer-1.0/gstreamer-GstQuery.html#GstQuery"><span class="type">GstQuery</span></a> on the element. Since: 0.10.36</td>
 
401
<td>perform a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstQuery.html#GstQuery"><span class="type">GstQuery</span></a> on the element. Since: 0.10.36</td>
402
402
</tr>
403
403
<tr>
404
404
<td><p><span class="term"><em class="structfield"><code><a name="GstBaseSinkClass.event"></a>event</code></em> ()</span></p></td>
432
432
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            gst_base_sink_query_latency         (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>,
433
433
                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> *live</code></em>,
434
434
                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> *upstream_live</code></em>,
435
 
                                                         <em class="parameter"><code><a href="../gstreamer-1.0/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> *min_latency</code></em>,
436
 
                                                         <em class="parameter"><code><a href="../gstreamer-1.0/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> *max_latency</code></em>);</pre>
 
435
                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> *min_latency</code></em>,
 
436
                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> *max_latency</code></em>);</pre>
437
437
<p>
438
438
Query the sink for the latency parameters. The latency will be queried from
439
439
the upstream elements. <em class="parameter"><code>live</code></em> will be TRUE if <em class="parameter"><code>sink</code></em> is configured to
486
486
<hr>
487
487
<div class="refsect2">
488
488
<a name="gst-base-sink-get-latency"></a><h3>gst_base_sink_get_latency ()</h3>
489
 
<pre class="programlisting"><a href="../gstreamer-1.0/GstClock.html#GstClockTime"><span class="returnvalue">GstClockTime</span></a>        gst_base_sink_get_latency           (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>);</pre>
 
489
<pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="returnvalue">GstClockTime</span></a>        gst_base_sink_get_latency           (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>);</pre>
490
490
<p>
491
491
Get the currently configured latency.
492
492
</p>
508
508
<hr>
509
509
<div class="refsect2">
510
510
<a name="gst-base-sink-do-preroll"></a><h3>gst_base_sink_do_preroll ()</h3>
511
 
<pre class="programlisting"><a href="../gstreamer-1.0/GstPad.html#GstFlowReturn"><span class="returnvalue">GstFlowReturn</span></a>       gst_base_sink_do_preroll            (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>,
512
 
                                                         <em class="parameter"><code><a href="../gstreamer-1.0/gstreamer-GstMiniObject.html#GstMiniObject"><span class="type">GstMiniObject</span></a> *obj</code></em>);</pre>
 
511
<pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GstFlowReturn"><span class="returnvalue">GstFlowReturn</span></a>       gst_base_sink_do_preroll            (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>,
 
512
                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMiniObject.html#GstMiniObject"><span class="type">GstMiniObject</span></a> *obj</code></em>);</pre>
513
513
<p>
514
514
If the <em class="parameter"><code>sink</code></em> spawns its own thread for pulling buffers from upstream it
515
515
should call this method after it has pulled a buffer. If the element needed
534
534
<tr>
535
535
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
536
536
<td>
537
 
<a href="../gstreamer-1.0/GstPad.html#GST-FLOW-OK:CAPS"><span class="type">GST_FLOW_OK</span></a> if the preroll completed and processing can
 
537
<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GST-FLOW-OK:CAPS"><span class="type">GST_FLOW_OK</span></a> if the preroll completed and processing can
538
538
continue. Any other return value should be returned from the render vmethod.</td>
539
539
</tr>
540
540
</tbody>
544
544
<hr>
545
545
<div class="refsect2">
546
546
<a name="gst-base-sink-wait-preroll"></a><h3>gst_base_sink_wait_preroll ()</h3>
547
 
<pre class="programlisting"><a href="../gstreamer-1.0/GstPad.html#GstFlowReturn"><span class="returnvalue">GstFlowReturn</span></a>       gst_base_sink_wait_preroll          (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>);</pre>
 
547
<pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GstFlowReturn"><span class="returnvalue">GstFlowReturn</span></a>       gst_base_sink_wait_preroll          (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>);</pre>
548
548
<p>
549
549
If the <a class="link" href="GstBaseSink.html#GstBaseSinkClass.render"><code class="function">GstBaseSinkClass.render()</code></a> method performs its own synchronisation
550
550
against the clock it must unblock when going from PLAYING to the PAUSED state
552
552
</p>
553
553
<p>
554
554
This function will block until a state change to PLAYING happens (in which
555
 
case this function returns <a href="../gstreamer-1.0/GstPad.html#GST-FLOW-OK:CAPS"><span class="type">GST_FLOW_OK</span></a>) or the processing must be stopped due
 
555
case this function returns <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GST-FLOW-OK:CAPS"><span class="type">GST_FLOW_OK</span></a>) or the processing must be stopped due
556
556
to a state change to READY or a FLUSH event (in which case this function
557
 
returns <a href="../gstreamer-1.0/GstPad.html#GST-FLOW-FLUSHING:CAPS"><span class="type">GST_FLOW_FLUSHING</span></a>).
 
557
returns <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GST-FLOW-FLUSHING:CAPS"><span class="type">GST_FLOW_FLUSHING</span></a>).
558
558
</p>
559
559
<p>
560
560
This function should only be called with the PREROLL_LOCK held, like in the
570
570
<tr>
571
571
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
572
572
<td>
573
 
<a href="../gstreamer-1.0/GstPad.html#GST-FLOW-OK:CAPS"><span class="type">GST_FLOW_OK</span></a> if the preroll completed and processing can
 
573
<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GST-FLOW-OK:CAPS"><span class="type">GST_FLOW_OK</span></a> if the preroll completed and processing can
574
574
continue. Any other return value should be returned from the render vmethod.</td>
575
575
</tr>
576
576
</tbody>
580
580
<hr>
581
581
<div class="refsect2">
582
582
<a name="gst-base-sink-wait-clock"></a><h3>gst_base_sink_wait_clock ()</h3>
583
 
<pre class="programlisting"><a href="../gstreamer-1.0/GstClock.html#GstClockReturn"><span class="returnvalue">GstClockReturn</span></a>      gst_base_sink_wait_clock            (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>,
584
 
                                                         <em class="parameter"><code><a href="../gstreamer-1.0/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> time</code></em>,
585
 
                                                         <em class="parameter"><code><a href="../gstreamer-1.0/GstClock.html#GstClockTimeDiff"><span class="type">GstClockTimeDiff</span></a> *jitter</code></em>);</pre>
 
583
<pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockReturn"><span class="returnvalue">GstClockReturn</span></a>      gst_base_sink_wait_clock            (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>,
 
584
                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> time</code></em>,
 
585
                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTimeDiff"><span class="type">GstClockTimeDiff</span></a> *jitter</code></em>);</pre>
586
586
<p>
587
587
This function will block until <em class="parameter"><code>time</code></em> is reached. It is usually called by
588
588
subclasses that use their own internal synchronisation.
589
589
</p>
590
590
<p>
591
 
If <em class="parameter"><code>time</code></em> is not valid, no sycnhronisation is done and <a href="../gstreamer-1.0/GstClock.html#GST-CLOCK-BADTIME:CAPS"><span class="type">GST_CLOCK_BADTIME</span></a> is
 
591
If <em class="parameter"><code>time</code></em> is not valid, no sycnhronisation is done and <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GST-CLOCK-BADTIME:CAPS"><span class="type">GST_CLOCK_BADTIME</span></a> is
592
592
returned. Likewise, if synchronisation is disabled in the element or there
593
 
is no clock, no synchronisation is done and <a href="../gstreamer-1.0/GstClock.html#GST-CLOCK-BADTIME:CAPS"><span class="type">GST_CLOCK_BADTIME</span></a> is returned.
 
593
is no clock, no synchronisation is done and <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GST-CLOCK-BADTIME:CAPS"><span class="type">GST_CLOCK_BADTIME</span></a> is returned.
594
594
</p>
595
595
<p>
596
596
This function should only be called with the PREROLL_LOCK held, like when
621
621
</tr>
622
622
<tr>
623
623
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
624
 
<td><a href="../gstreamer-1.0/GstClock.html#GstClockReturn"><span class="type">GstClockReturn</span></a></td>
 
624
<td><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockReturn"><span class="type">GstClockReturn</span></a></td>
625
625
</tr>
626
626
</tbody>
627
627
</table></div>
630
630
<hr>
631
631
<div class="refsect2">
632
632
<a name="gst-base-sink-wait-eos"></a><h3>gst_base_sink_wait_eos ()</h3>
633
 
<pre class="programlisting"><a href="../gstreamer-1.0/GstPad.html#GstFlowReturn"><span class="returnvalue">GstFlowReturn</span></a>       gst_base_sink_wait_eos              (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>,
634
 
                                                         <em class="parameter"><code><a href="../gstreamer-1.0/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> time</code></em>,
635
 
                                                         <em class="parameter"><code><a href="../gstreamer-1.0/GstClock.html#GstClockTimeDiff"><span class="type">GstClockTimeDiff</span></a> *jitter</code></em>);</pre>
 
633
<pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GstFlowReturn"><span class="returnvalue">GstFlowReturn</span></a>       gst_base_sink_wait_eos              (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>,
 
634
                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> time</code></em>,
 
635
                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTimeDiff"><span class="type">GstClockTimeDiff</span></a> *jitter</code></em>);</pre>
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<p>
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637
This function will block until <em class="parameter"><code>time</code></em> is reached. It is usually called by
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638
subclasses that use their own internal synchronisation but want to let the
664
664
</tr>
665
665
<tr>
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666
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
667
 
<td><a href="../gstreamer-1.0/GstPad.html#GstFlowReturn"><span class="type">GstFlowReturn</span></a></td>
 
667
<td><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GstFlowReturn"><span class="type">GstFlowReturn</span></a></td>
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</tr>
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</tbody>
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</table></div>
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871
<div class="refsect2">
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<a name="gst-base-sink-set-ts-offset"></a><h3>gst_base_sink_set_ts_offset ()</h3>
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<pre class="programlisting"><span class="returnvalue">void</span>                gst_base_sink_set_ts_offset         (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>,
874
 
                                                         <em class="parameter"><code><a href="../gstreamer-1.0/GstClock.html#GstClockTimeDiff"><span class="type">GstClockTimeDiff</span></a> offset</code></em>);</pre>
 
874
                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTimeDiff"><span class="type">GstClockTimeDiff</span></a> offset</code></em>);</pre>
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<p>
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Adjust the synchronisation of <em class="parameter"><code>sink</code></em> with <em class="parameter"><code>offset</code></em>. A negative value will
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877
render buffers earlier than their timestamp. A positive value will delay
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896
<hr>
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897
<div class="refsect2">
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<a name="gst-base-sink-get-ts-offset"></a><h3>gst_base_sink_get_ts_offset ()</h3>
899
 
<pre class="programlisting"><a href="../gstreamer-1.0/GstClock.html#GstClockTimeDiff"><span class="returnvalue">GstClockTimeDiff</span></a>    gst_base_sink_get_ts_offset         (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>);</pre>
 
899
<pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTimeDiff"><span class="returnvalue">GstClockTimeDiff</span></a>    gst_base_sink_get_ts_offset         (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>);</pre>
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900
<p>
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901
Get the synchronisation offset of <em class="parameter"><code>sink</code></em>.
902
902
</p>
919
919
<div class="refsect2">
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920
<a name="gst-base-sink-set-render-delay"></a><h3>gst_base_sink_set_render_delay ()</h3>
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<pre class="programlisting"><span class="returnvalue">void</span>                gst_base_sink_set_render_delay      (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>,
922
 
                                                         <em class="parameter"><code><a href="../gstreamer-1.0/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> delay</code></em>);</pre>
 
922
                                                         <em class="parameter"><code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="type">GstClockTime</span></a> delay</code></em>);</pre>
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<p>
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Set the render delay in <em class="parameter"><code>sink</code></em> to <em class="parameter"><code>delay</code></em>. The render delay is the time
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925
between actual rendering of a buffer and its synchronisation time. Some
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952
<hr>
953
953
<div class="refsect2">
954
954
<a name="gst-base-sink-get-render-delay"></a><h3>gst_base_sink_get_render_delay ()</h3>
955
 
<pre class="programlisting"><a href="../gstreamer-1.0/GstClock.html#GstClockTime"><span class="returnvalue">GstClockTime</span></a>        gst_base_sink_get_render_delay      (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>);</pre>
 
955
<pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime"><span class="returnvalue">GstClockTime</span></a>        gst_base_sink_get_render_delay      (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>);</pre>
956
956
<p>
957
957
Get the render delay of <em class="parameter"><code>sink</code></em>. see <a class="link" href="GstBaseSink.html#gst-base-sink-set-render-delay" title="gst_base_sink_set_render_delay ()"><code class="function">gst_base_sink_set_render_delay()</code></a> for more
958
958
information about the render delay.
976
976
<hr>
977
977
<div class="refsect2">
978
978
<a name="gst-base-sink-get-last-sample"></a><h3>gst_base_sink_get_last_sample ()</h3>
979
 
<pre class="programlisting"><a href="../gstreamer-1.0/gstreamer-GstSample.html#GstSample"><span class="returnvalue">GstSample</span></a> *         gst_base_sink_get_last_sample       (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>);</pre>
 
979
<pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstSample.html#GstSample"><span class="returnvalue">GstSample</span></a> *         gst_base_sink_get_last_sample       (<em class="parameter"><code><a class="link" href="GstBaseSink.html" title="GstBaseSink"><span class="type">GstBaseSink</span></a> *sink</code></em>);</pre>
980
980
<p>
981
981
Get the last sample that arrived in the sink and was used for preroll or for
982
982
rendering. This property can be used to generate thumbnails.
983
983
</p>
984
984
<p>
985
 
The <a href="../gstreamer-1.0/gstreamer-GstCaps.html#GstCaps"><span class="type">GstCaps</span></a> on the sample can be used to determine the type of the buffer.
 
985
The <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps"><span class="type">GstCaps</span></a> on the sample can be used to determine the type of the buffer.
986
986
</p>
987
987
<p>
988
988
Free-function: gst_sample_unref
996
996
</tr>
997
997
<tr>
998
998
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
999
 
<td>a <a href="../gstreamer-1.0/gstreamer-GstSample.html#GstSample"><span class="type">GstSample</span></a>. <a href="../gstreamer-1.0/gstreamer-GstSample.html#gst-sample-unref"><code class="function">gst_sample_unref()</code></a> after usage.
 
999
<td>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstSample.html#GstSample"><span class="type">GstSample</span></a>. <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstSample.html#gst-sample-unref"><code class="function">gst_sample_unref()</code></a> after usage.
1000
1000
This function returns NULL when no buffer has arrived in the sink yet
1001
1001
or when the sink is not in PAUSED or PLAYING. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span>
1002
1002
</td>
1110
1110
<pre class="programlisting">#define GST_BASE_SINK_PAD(obj)          (GST_BASE_SINK_CAST (obj)-&gt;sinkpad)
1111
1111
</pre>
1112
1112
<p>
1113
 
Gives the pointer to the <a href="../gstreamer-1.0/GstPad.html"><span class="type">GstPad</span></a> object of the element.
 
1113
Gives the pointer to the <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html"><span class="type">GstPad</span></a> object of the element.
1114
1114
</p>
1115
1115
<div class="variablelist"><table border="0">
1116
1116
<col align="left" valign="top">
1208
1208
<hr>
1209
1209
<div class="refsect2">
1210
1210
<a name="GstBaseSink--last-sample"></a><h3>The <code class="literal">"last-sample"</code> property</h3>
1211
 
<pre class="programlisting">  "last-sample"              <a href="../gstreamer-1.0/gstreamer-GstSample.html#GstSample"><span class="type">GstSample</span></a>*            : Read</pre>
 
1211
<pre class="programlisting">  "last-sample"              <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstSample.html#GstSample"><span class="type">GstSample</span></a>*            : Read</pre>
1212
1212
<p>
1213
1213
The last buffer that arrived in the sink and was used for preroll or for
1214
1214
rendering. This property can be used to generate thumbnails. This property