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<div id="projectname">gstreamermm
 <span id="projectnumber">1.10.0</span>
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<li class="navelem"><a class="el" href="namespaceGst.html">Gst</a></li><li class="navelem"><a class="el" href="classGst_1_1Context.html">Context</a></li> </ul>
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<a href="#pub-methods">Public Member Functions</a> |
<a href="#pub-static-methods">Static Public Member Functions</a> |
<a href="#pro-methods">Protected Member Functions</a> |
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<div class="title">Gst::Context Class Reference</div> </div>
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<p>Lightweight objects to represent element contexts.
<a href="classGst_1_1Context.html#details">More...</a></p>
<p><code>#include <gstreamermm/context.h></code></p>
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Inheritance diagram for Gst::Context:</div>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:ad92c9b55e40da3f5a1c6f37c843ecef9"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Context.html#ad92c9b55e40da3f5a1c6f37c843ecef9">reference</a> () const</td></tr>
<tr class="memdesc:ad92c9b55e40da3f5a1c6f37c843ecef9"><td class="mdescLeft"> </td><td class="mdescRight">Increment the reference count for this object. <a href="#ad92c9b55e40da3f5a1c6f37c843ecef9">More...</a><br /></td></tr>
<tr class="separator:ad92c9b55e40da3f5a1c6f37c843ecef9"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a37410a24ca79b4d703e6da735236e88b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Context.html#a37410a24ca79b4d703e6da735236e88b">unreference</a> () const</td></tr>
<tr class="memdesc:a37410a24ca79b4d703e6da735236e88b"><td class="mdescLeft"> </td><td class="mdescRight">Decrement the reference count for this object. <a href="#a37410a24ca79b4d703e6da735236e88b">More...</a><br /></td></tr>
<tr class="separator:a37410a24ca79b4d703e6da735236e88b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a58c0a6618dee4a97f22a1e80f2249819"><td class="memItemLeft" align="right" valign="top">GstContext* </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Context.html#a58c0a6618dee4a97f22a1e80f2249819">gobj</a> ()</td></tr>
<tr class="memdesc:a58c0a6618dee4a97f22a1e80f2249819"><td class="mdescLeft"> </td><td class="mdescRight">Provides access to the underlying C instance. <a href="#a58c0a6618dee4a97f22a1e80f2249819">More...</a><br /></td></tr>
<tr class="separator:a58c0a6618dee4a97f22a1e80f2249819"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a348872cac72af96b68a6d00d7c213edf"><td class="memItemLeft" align="right" valign="top">const GstContext* </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Context.html#a348872cac72af96b68a6d00d7c213edf">gobj</a> () const</td></tr>
<tr class="memdesc:a348872cac72af96b68a6d00d7c213edf"><td class="mdescLeft"> </td><td class="mdescRight">Provides access to the underlying C instance. <a href="#a348872cac72af96b68a6d00d7c213edf">More...</a><br /></td></tr>
<tr class="separator:a348872cac72af96b68a6d00d7c213edf"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae0f13d14f43e0852948d9f5ae087e89f"><td class="memItemLeft" align="right" valign="top">GstContext* </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Context.html#ae0f13d14f43e0852948d9f5ae087e89f">gobj_copy</a> () const</td></tr>
<tr class="memdesc:ae0f13d14f43e0852948d9f5ae087e89f"><td class="mdescLeft"> </td><td class="mdescRight">Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. <a href="#ae0f13d14f43e0852948d9f5ae087e89f">More...</a><br /></td></tr>
<tr class="separator:ae0f13d14f43e0852948d9f5ae087e89f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7f015e076e3d2b7ba6e76cec5813b525"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Context.html#a7f015e076e3d2b7ba6e76cec5813b525">Context</a> ()=delete</td></tr>
<tr class="separator:a7f015e076e3d2b7ba6e76cec5813b525"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8f01d2b621d54244dd4cf46e59c73279"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Context.html#a8f01d2b621d54244dd4cf46e59c73279">Context</a> (const <a class="el" href="classGst_1_1Context.html">Context</a>&)=delete</td></tr>
<tr class="separator:a8f01d2b621d54244dd4cf46e59c73279"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a716c65d5f58435ab2b9ce70dc8ae88c1"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classGst_1_1Context.html">Context</a>& </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Context.html#a716c65d5f58435ab2b9ce70dc8ae88c1">operator=</a> (const <a class="el" href="classGst_1_1Context.html">Context</a>&)=delete</td></tr>
<tr class="separator:a716c65d5f58435ab2b9ce70dc8ae88c1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa535d5cd6222fb7cfbd9081e4f66ea76"><td class="memItemLeft" align="right" valign="top">Glib::RefPtr< <a class="el" href="classGst_1_1Context.html">Gst::Context</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Context.html#aa535d5cd6222fb7cfbd9081e4f66ea76">copy</a> () const</td></tr>
<tr class="memdesc:aa535d5cd6222fb7cfbd9081e4f66ea76"><td class="mdescLeft"> </td><td class="mdescRight">Creates a copy of the context. <a href="#aa535d5cd6222fb7cfbd9081e4f66ea76">More...</a><br /></td></tr>
<tr class="separator:aa535d5cd6222fb7cfbd9081e4f66ea76"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8b508c9486859e20b21e27dcf4b2b294"><td class="memItemLeft" align="right" valign="top">Glib::ustring </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Context.html#a8b508c9486859e20b21e27dcf4b2b294">get_context_type</a> () const</td></tr>
<tr class="memdesc:a8b508c9486859e20b21e27dcf4b2b294"><td class="mdescLeft"> </td><td class="mdescRight">Get the type of <em>context</em>. <a href="#a8b508c9486859e20b21e27dcf4b2b294">More...</a><br /></td></tr>
<tr class="separator:a8b508c9486859e20b21e27dcf4b2b294"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a419c1699d6ba61b55e408c11a368c0fe"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Context.html#a419c1699d6ba61b55e408c11a368c0fe">has_context_type</a> (const Glib::ustring& context_type) const</td></tr>
<tr class="memdesc:a419c1699d6ba61b55e408c11a368c0fe"><td class="mdescLeft"> </td><td class="mdescRight">Checks if <em>context</em> has <em>context_type</em>. <a href="#a419c1699d6ba61b55e408c11a368c0fe">More...</a><br /></td></tr>
<tr class="separator:a419c1699d6ba61b55e408c11a368c0fe"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a29b78297399d9cdb9833b1e3b4ca9707"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Context.html#a29b78297399d9cdb9833b1e3b4ca9707">is_persistent</a> () const</td></tr>
<tr class="memdesc:a29b78297399d9cdb9833b1e3b4ca9707"><td class="mdescLeft"> </td><td class="mdescRight"><a class="el" href="classGst_1_1Check.html">Check</a> if <em>context</em> is persistent. <a href="#a29b78297399d9cdb9833b1e3b4ca9707">More...</a><br /></td></tr>
<tr class="separator:a29b78297399d9cdb9833b1e3b4ca9707"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a4d9a1589adc27b2a691ea9d7a7092f0f"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classGst_1_1Structure.html">Gst::Structure</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Context.html#a4d9a1589adc27b2a691ea9d7a7092f0f">writable_structure</a> () const</td></tr>
<tr class="memdesc:a4d9a1589adc27b2a691ea9d7a7092f0f"><td class="mdescLeft"> </td><td class="mdescRight">Get a writable version of the structure. <a href="#a4d9a1589adc27b2a691ea9d7a7092f0f">More...</a><br /></td></tr>
<tr class="separator:a4d9a1589adc27b2a691ea9d7a7092f0f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_methods_classGst_1_1MiniObject"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classGst_1_1MiniObject')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="classGst_1_1MiniObject.html">Gst::MiniObject</a></td></tr>
<tr class="memitem:a464d71a821944237d053b9494782e128 inherit pub_methods_classGst_1_1MiniObject"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MiniObject.html#a464d71a821944237d053b9494782e128">reference</a> () const</td></tr>
<tr class="memdesc:a464d71a821944237d053b9494782e128 inherit pub_methods_classGst_1_1MiniObject"><td class="mdescLeft"> </td><td class="mdescRight">Increment the reference count for this object. <a href="classGst_1_1MiniObject.html#a464d71a821944237d053b9494782e128">More...</a><br /></td></tr>
<tr class="separator:a464d71a821944237d053b9494782e128 inherit pub_methods_classGst_1_1MiniObject"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a1946d3fbaf972906211c47eb7cffd11d inherit pub_methods_classGst_1_1MiniObject"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MiniObject.html#a1946d3fbaf972906211c47eb7cffd11d">unreference</a> () const</td></tr>
<tr class="memdesc:a1946d3fbaf972906211c47eb7cffd11d inherit pub_methods_classGst_1_1MiniObject"><td class="mdescLeft"> </td><td class="mdescRight">Decrement the reference count for this object. <a href="classGst_1_1MiniObject.html#a1946d3fbaf972906211c47eb7cffd11d">More...</a><br /></td></tr>
<tr class="separator:a1946d3fbaf972906211c47eb7cffd11d inherit pub_methods_classGst_1_1MiniObject"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae94fda9a1f137629b5e2e827bea75b08 inherit pub_methods_classGst_1_1MiniObject"><td class="memItemLeft" align="right" valign="top">GstMiniObject* </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MiniObject.html#ae94fda9a1f137629b5e2e827bea75b08">gobj</a> ()</td></tr>
<tr class="memdesc:ae94fda9a1f137629b5e2e827bea75b08 inherit pub_methods_classGst_1_1MiniObject"><td class="mdescLeft"> </td><td class="mdescRight">Provides access to the underlying C instance. <a href="classGst_1_1MiniObject.html#ae94fda9a1f137629b5e2e827bea75b08">More...</a><br /></td></tr>
<tr class="separator:ae94fda9a1f137629b5e2e827bea75b08 inherit pub_methods_classGst_1_1MiniObject"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a17493d7c362acbbe26c2c201f3d9ee84 inherit pub_methods_classGst_1_1MiniObject"><td class="memItemLeft" align="right" valign="top">const GstMiniObject* </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MiniObject.html#a17493d7c362acbbe26c2c201f3d9ee84">gobj</a> () const</td></tr>
<tr class="memdesc:a17493d7c362acbbe26c2c201f3d9ee84 inherit pub_methods_classGst_1_1MiniObject"><td class="mdescLeft"> </td><td class="mdescRight">Provides access to the underlying C instance. <a href="classGst_1_1MiniObject.html#a17493d7c362acbbe26c2c201f3d9ee84">More...</a><br /></td></tr>
<tr class="separator:a17493d7c362acbbe26c2c201f3d9ee84 inherit pub_methods_classGst_1_1MiniObject"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af923b7ca703939fce2210fa40ac78b16 inherit pub_methods_classGst_1_1MiniObject"><td class="memItemLeft" align="right" valign="top">GstMiniObject* </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MiniObject.html#af923b7ca703939fce2210fa40ac78b16">gobj_copy</a> () const</td></tr>
<tr class="memdesc:af923b7ca703939fce2210fa40ac78b16 inherit pub_methods_classGst_1_1MiniObject"><td class="mdescLeft"> </td><td class="mdescRight">Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. <a href="classGst_1_1MiniObject.html#af923b7ca703939fce2210fa40ac78b16">More...</a><br /></td></tr>
<tr class="separator:af923b7ca703939fce2210fa40ac78b16 inherit pub_methods_classGst_1_1MiniObject"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a1b87e56eeae583af8e16b2892fbcf4ce inherit pub_methods_classGst_1_1MiniObject"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MiniObject.html#a1b87e56eeae583af8e16b2892fbcf4ce">MiniObject</a> ()=delete</td></tr>
<tr class="separator:a1b87e56eeae583af8e16b2892fbcf4ce inherit pub_methods_classGst_1_1MiniObject"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a15ae36653947b4e3a3d60a008fc71c7b inherit pub_methods_classGst_1_1MiniObject"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MiniObject.html#a15ae36653947b4e3a3d60a008fc71c7b">MiniObject</a> (const <a class="el" href="classGst_1_1MiniObject.html">MiniObject</a>&)=delete</td></tr>
<tr class="separator:a15ae36653947b4e3a3d60a008fc71c7b inherit pub_methods_classGst_1_1MiniObject"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a217d2040d40f2f9586f1c0cbbf324ddb inherit pub_methods_classGst_1_1MiniObject"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classGst_1_1MiniObject.html">MiniObject</a>& </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MiniObject.html#a217d2040d40f2f9586f1c0cbbf324ddb">operator=</a> (const <a class="el" href="classGst_1_1MiniObject.html">MiniObject</a>&)=delete</td></tr>
<tr class="separator:a217d2040d40f2f9586f1c0cbbf324ddb inherit pub_methods_classGst_1_1MiniObject"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae90229dda07195e7b0a10a69f08cee53 inherit pub_methods_classGst_1_1MiniObject"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MiniObject.html#ae90229dda07195e7b0a10a69f08cee53">~MiniObject</a> ()</td></tr>
<tr class="separator:ae90229dda07195e7b0a10a69f08cee53 inherit pub_methods_classGst_1_1MiniObject"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aea7d25b9d49ef944bc94bfe4a190885b inherit pub_methods_classGst_1_1MiniObject"><td class="memItemLeft" align="right" valign="top">guint </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MiniObject.html#aea7d25b9d49ef944bc94bfe4a190885b">get_flags</a> () const</td></tr>
<tr class="separator:aea7d25b9d49ef944bc94bfe4a190885b inherit pub_methods_classGst_1_1MiniObject"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae0c291f0989acbe9083755aeaa995ea1 inherit pub_methods_classGst_1_1MiniObject"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MiniObject.html#ae0c291f0989acbe9083755aeaa995ea1">set_flags</a> (const guint& value)</td></tr>
<tr class="separator:ae0c291f0989acbe9083755aeaa995ea1 inherit pub_methods_classGst_1_1MiniObject"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa0064361def478a0d642d66a095f45c0 inherit pub_methods_classGst_1_1MiniObject"><td class="memItemLeft" align="right" valign="top">gint </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MiniObject.html#aa0064361def478a0d642d66a095f45c0">get_refcount</a> () const</td></tr>
<tr class="separator:aa0064361def478a0d642d66a095f45c0 inherit pub_methods_classGst_1_1MiniObject"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:afae66f78abe7c10b8f885368ebb7c319 inherit pub_methods_classGst_1_1MiniObject"><td class="memItemLeft" align="right" valign="top">gint </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MiniObject.html#afae66f78abe7c10b8f885368ebb7c319">get_lockstate</a> () const</td></tr>
<tr class="separator:afae66f78abe7c10b8f885368ebb7c319 inherit pub_methods_classGst_1_1MiniObject"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aad5ba3f0085198bcca37d8e57f0d3c4d inherit pub_methods_classGst_1_1MiniObject"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MiniObject.html#aad5ba3f0085198bcca37d8e57f0d3c4d">lock</a> (<a class="el" href="group__gstreamermmEnums.html#ga2b9102a456ce11974b6b9f8547a38861">LockFlags</a> flags)</td></tr>
<tr class="memdesc:aad5ba3f0085198bcca37d8e57f0d3c4d inherit pub_methods_classGst_1_1MiniObject"><td class="mdescLeft"> </td><td class="mdescRight">Lock the mini-object with the specified access mode in <em>flags</em>. <a href="classGst_1_1MiniObject.html#aad5ba3f0085198bcca37d8e57f0d3c4d">More...</a><br /></td></tr>
<tr class="separator:aad5ba3f0085198bcca37d8e57f0d3c4d inherit pub_methods_classGst_1_1MiniObject"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:afbdf917368edf5ea0ee8cac6482d74b5 inherit pub_methods_classGst_1_1MiniObject"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MiniObject.html#afbdf917368edf5ea0ee8cac6482d74b5">unlock</a> (<a class="el" href="group__gstreamermmEnums.html#ga2b9102a456ce11974b6b9f8547a38861">LockFlags</a> flags)</td></tr>
<tr class="memdesc:afbdf917368edf5ea0ee8cac6482d74b5 inherit pub_methods_classGst_1_1MiniObject"><td class="mdescLeft"> </td><td class="mdescRight">Unlock the mini-object with the specified access mode in <em>flags</em>. <a href="classGst_1_1MiniObject.html#afbdf917368edf5ea0ee8cac6482d74b5">More...</a><br /></td></tr>
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<tr class="memitem:acaed2eddf2838dfbb544d65b37fdf6e0 inherit pub_methods_classGst_1_1MiniObject"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MiniObject.html#acaed2eddf2838dfbb544d65b37fdf6e0">is_writable</a> () const</td></tr>
<tr class="memdesc:acaed2eddf2838dfbb544d65b37fdf6e0 inherit pub_methods_classGst_1_1MiniObject"><td class="mdescLeft"> </td><td class="mdescRight">If <em>mini_object</em> has the LOCKABLE flag set, check if the current EXCLUSIVE lock on <em>object</em> is the only one, this means that changes to the object will not be visible to any other object. <a href="classGst_1_1MiniObject.html#acaed2eddf2838dfbb544d65b37fdf6e0">More...</a><br /></td></tr>
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<tr class="memitem:aaa082ae18e7f378f59156da600d0f9c5 inherit pub_methods_classGst_1_1MiniObject"><td class="memItemLeft" align="right" valign="top">Glib::RefPtr< <a class="el" href="classGst_1_1MiniObject.html">MiniObject</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MiniObject.html#aaa082ae18e7f378f59156da600d0f9c5">create_writable</a> ()</td></tr>
<tr class="memdesc:aaa082ae18e7f378f59156da600d0f9c5 inherit pub_methods_classGst_1_1MiniObject"><td class="mdescLeft"> </td><td class="mdescRight">Checks if a mini-object is writable. <a href="classGst_1_1MiniObject.html#aaa082ae18e7f378f59156da600d0f9c5">More...</a><br /></td></tr>
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<tr class="memitem:a791442ba75dad37af2354d0d72e83229 inherit pub_methods_classGst_1_1MiniObject"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MiniObject.html#a791442ba75dad37af2354d0d72e83229">set_qdata</a> (GQuark quark, <a class="el" href="classGst_1_1QuarkData.html">QuarkData</a>* data)</td></tr>
<tr class="memdesc:a791442ba75dad37af2354d0d72e83229 inherit pub_methods_classGst_1_1MiniObject"><td class="mdescLeft"> </td><td class="mdescRight">This sets an opaque, named pointer on a miniobject. <a href="classGst_1_1MiniObject.html#a791442ba75dad37af2354d0d72e83229">More...</a><br /></td></tr>
<tr class="separator:a791442ba75dad37af2354d0d72e83229 inherit pub_methods_classGst_1_1MiniObject"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ada6175a263b84c230b256e96b5cb7088 inherit pub_methods_classGst_1_1MiniObject"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classGst_1_1QuarkData.html">QuarkData</a>* </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MiniObject.html#ada6175a263b84c230b256e96b5cb7088">get_qdata</a> (GQuark quark) const</td></tr>
<tr class="memdesc:ada6175a263b84c230b256e96b5cb7088 inherit pub_methods_classGst_1_1MiniObject"><td class="mdescLeft"> </td><td class="mdescRight">This function gets back user data pointers stored via <a class="el" href="classGst_1_1MiniObject.html#a791442ba75dad37af2354d0d72e83229" title="This sets an opaque, named pointer on a miniobject. ">set_qdata()</a>. <a href="classGst_1_1MiniObject.html#ada6175a263b84c230b256e96b5cb7088">More...</a><br /></td></tr>
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<tr class="memitem:adc97e339061f89323ca099a6889b74bf inherit pub_methods_classGst_1_1MiniObject"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classGst_1_1QuarkData.html">QuarkData</a>* </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MiniObject.html#adc97e339061f89323ca099a6889b74bf">steal_qdata</a> (GQuark quark)</td></tr>
<tr class="memdesc:adc97e339061f89323ca099a6889b74bf inherit pub_methods_classGst_1_1MiniObject"><td class="mdescLeft"> </td><td class="mdescRight">This function gets back user data pointers stored via <a class="el" href="classGst_1_1MiniObject.html#a791442ba75dad37af2354d0d72e83229" title="This sets an opaque, named pointer on a miniobject. ">set_qdata()</a> and removes the data from <em>object</em> without invoking its destroy() function (if any was set). <a href="classGst_1_1MiniObject.html#adc97e339061f89323ca099a6889b74bf">More...</a><br /></td></tr>
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<tr class="memitem:a09152ec3b8558cbea3bbd2faed65037e inherit pub_methods_classGst_1_1MiniObject"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MiniObject.html#a09152ec3b8558cbea3bbd2faed65037e">add_finalize_notifier</a> (const <a class="el" href="classGst_1_1MiniObject.html#aaf54e796d4c1d985d9e9f36c27aaac0a">SlotFinalizer</a>& slot)</td></tr>
<tr class="memdesc:a09152ec3b8558cbea3bbd2faed65037e inherit pub_methods_classGst_1_1MiniObject"><td class="mdescLeft"> </td><td class="mdescRight">Adds notifier when mini object is finalized. <a href="classGst_1_1MiniObject.html#a09152ec3b8558cbea3bbd2faed65037e">More...</a><br /></td></tr>
<tr class="separator:a09152ec3b8558cbea3bbd2faed65037e inherit pub_methods_classGst_1_1MiniObject"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a6742cd5c88ae7aa9cb439060557cd770 inherit pub_methods_classGst_1_1MiniObject"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MiniObject.html#a6742cd5c88ae7aa9cb439060557cd770">remove_finalize_notifier</a> ()</td></tr>
<tr class="memdesc:a6742cd5c88ae7aa9cb439060557cd770 inherit pub_methods_classGst_1_1MiniObject"><td class="mdescLeft"> </td><td class="mdescRight">Remove finalize notifier. <a href="classGst_1_1MiniObject.html#a6742cd5c88ae7aa9cb439060557cd770">More...</a><br /></td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a>
Static Public Member Functions</h2></td></tr>
<tr class="memitem:ae8d12392678b9c30f1e706b5780efdf9"><td class="memItemLeft" align="right" valign="top">static Glib::RefPtr< <a class="el" href="classGst_1_1Context.html">Gst::Context</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Context.html#ae8d12392678b9c30f1e706b5780efdf9">create</a> (const Glib::ustring& context_type, bool persistent)</td></tr>
<tr class="memdesc:ae8d12392678b9c30f1e706b5780efdf9"><td class="mdescLeft"> </td><td class="mdescRight">Create a new context. <a href="#ae8d12392678b9c30f1e706b5780efdf9">More...</a><br /></td></tr>
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Protected Member Functions</h2></td></tr>
<tr class="memitem:a4ee0bfaf7a4b2849c6eafe66b09ff8bc"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Context.html#a4ee0bfaf7a4b2849c6eafe66b09ff8bc">operator delete</a> (void*, std::size_t)</td></tr>
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<tr class="inherit_header pro_methods_classGst_1_1MiniObject"><td colspan="2" onclick="javascript:toggleInherit('pro_methods_classGst_1_1MiniObject')"><img src="closed.png" alt="-"/> Protected Member Functions inherited from <a class="el" href="classGst_1_1MiniObject.html">Gst::MiniObject</a></td></tr>
<tr class="memitem:ae5e12067f87b9ac8f27c6267ebe15259 inherit pro_methods_classGst_1_1MiniObject"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MiniObject.html#ae5e12067f87b9ac8f27c6267ebe15259">operator delete</a> (void*, std::size_t)</td></tr>
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Related Functions</h2></td></tr>
<tr><td class="ititle" colspan="2"><p>(Note that these are not member functions.) </p>
</td></tr>
<tr class="memitem:aee2d2684162420274929dbf03d66b717"><td class="memItemLeft" align="right" valign="top">Glib::RefPtr< <a class="el" href="classGst_1_1Context.html">Gst::Context</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1Context.html#aee2d2684162420274929dbf03d66b717">wrap</a> (GstContext* object, bool take_copy=false)</td></tr>
<tr class="memdesc:aee2d2684162420274929dbf03d66b717"><td class="mdescLeft"> </td><td class="mdescRight">A <a class="el" href="namespaceGlib.html#a43fcab2a44083e8b7b6a1c8193acae2b">Glib::wrap()</a> method for this object. <a href="#aee2d2684162420274929dbf03d66b717">More...</a><br /></td></tr>
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<tr class="inherit_header related_classGst_1_1MiniObject"><td colspan="2" onclick="javascript:toggleInherit('related_classGst_1_1MiniObject')"><img src="closed.png" alt="-"/> Related Functions inherited from <a class="el" href="classGst_1_1MiniObject.html">Gst::MiniObject</a></td></tr>
<tr class="memitem:a8498c52b750a4114b6d97d5d79842a14 inherit related_classGst_1_1MiniObject"><td class="memItemLeft" align="right" valign="top">Glib::RefPtr< <a class="el" href="classGst_1_1MiniObject.html">Gst::MiniObject</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MiniObject.html#a8498c52b750a4114b6d97d5d79842a14">wrap</a> (GstMiniObject* object, bool take_copy=false)</td></tr>
<tr class="memdesc:a8498c52b750a4114b6d97d5d79842a14 inherit related_classGst_1_1MiniObject"><td class="mdescLeft"> </td><td class="mdescRight">A <a class="el" href="namespaceGlib.html#a43fcab2a44083e8b7b6a1c8193acae2b">Glib::wrap()</a> method for this object. <a href="classGst_1_1MiniObject.html#a8498c52b750a4114b6d97d5d79842a14">More...</a><br /></td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="inherited"></a>
Additional Inherited Members</h2></td></tr>
<tr class="inherit_header pub_types_classGst_1_1MiniObject"><td colspan="2" onclick="javascript:toggleInherit('pub_types_classGst_1_1MiniObject')"><img src="closed.png" alt="-"/> Public Types inherited from <a class="el" href="classGst_1_1MiniObject.html">Gst::MiniObject</a></td></tr>
<tr class="memitem:aaf54e796d4c1d985d9e9f36c27aaac0a inherit pub_types_classGst_1_1MiniObject"><td class="memItemLeft" align="right" valign="top">typedef sigc::slot< void > </td><td class="memItemRight" valign="bottom"><a class="el" href="classGst_1_1MiniObject.html#aaf54e796d4c1d985d9e9f36c27aaac0a">SlotFinalizer</a></td></tr>
<tr class="separator:aaf54e796d4c1d985d9e9f36c27aaac0a inherit pub_types_classGst_1_1MiniObject"><td class="memSeparator" colspan="2"> </td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Lightweight objects to represent element contexts. </p>
<p><a class="el" href="classGst_1_1Context.html" title="Lightweight objects to represent element contexts. ">Gst::Context</a> is a container object used to store contexts like a device context, a display server connection and similar concepts that should be shared between multiple elements.</p>
<p>Applications can set a context on a complete pipeline by using <a class="el" href="classGst_1_1Element.html#aacb864fcef4a93fc45a9af3627db0c6b" title="Sets the context of the element. ">Gst::Element::set_context()</a>, which will then be propagated to all child elements. Elements can handle these in <a class="el" href="classGst_1_1Element.html#a0a910b5a5812341da6a9568f59dc9d51" title="Set a Gst::Context on the element. ">Gst::Element::set_context_vfunc()</a> and merge them with the context information they already have.</p>
<p>When an element needs a context it will do the following actions in this order until one step succeeds:</p><ol type="1">
<li><a class="el" href="classGst_1_1Check.html">Check</a> if the element already has a context</li>
<li><a class="el" href="classGst_1_1Query.html" title="A class used to perform queries on pads and elements. ">Query</a> downstream with <a class="el" href="namespaceGst.html#ga4f1a3aebb6bc7d8271761147c11542d7a53e9d2bb6290d374846a085b5bc8e151" title="Query the pipeline-local context from downstream or upstream (since 1.2). ">Gst::QUERY_CONTEXT</a> for the context</li>
<li><a class="el" href="classGst_1_1Query.html" title="A class used to perform queries on pads and elements. ">Query</a> upstream with <a class="el" href="namespaceGst.html#ga4f1a3aebb6bc7d8271761147c11542d7a53e9d2bb6290d374846a085b5bc8e151" title="Query the pipeline-local context from downstream or upstream (since 1.2). ">Gst::QUERY_CONTEXT</a> for the context</li>
<li>Post a <a class="el" href="namespaceGst.html#ga704e8de3c3f9698d3c3ca15d61190a86a1c12abecd74731502865ececde721b63" title="Message indicating that an element wants a specific context (Since 1.2). ">Gst::MESSAGE_NEED_CONTEXT</a> message on the bus with the required context types and afterwards check if a usable context was set now</li>
<li>Create a context by itself and post a <a class="el" href="namespaceGst.html#ga704e8de3c3f9698d3c3ca15d61190a86a47b1bd5d5e1021dab773d5a87897847c" title="Message indicating that an element created a context (Since 1.2). ">Gst::MESSAGE_HAVE_CONTEXT</a> message on the bus.</li>
</ol>
<p>Bins will catch <a class="el" href="namespaceGst.html#ga704e8de3c3f9698d3c3ca15d61190a86a1c12abecd74731502865ececde721b63" title="Message indicating that an element wants a specific context (Since 1.2). ">Gst::MESSAGE_NEED_CONTEXT</a> messages and will set any previously known context on the element that asks for it if possible. Otherwise the application should provide one if it can.</p>
<p>Last reviewed on 2016-05-16 (1.8.0)</p>
<p>Since: 1.2 </p>
</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a7f015e076e3d2b7ba6e76cec5813b525">◆ </a></span>Context() <span class="overload">[1/2]</span></h2>
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<td class="memname">Gst::Context::Context </td>
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<span class="mlabels"><span class="mlabel">delete</span></span> </td>
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<td class="memname">Gst::Context::Context </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classGst_1_1Context.html">Context</a>& </td>
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<h2 class="groupheader">Member Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#aa535d5cd6222fb7cfbd9081e4f66ea76">◆ </a></span>copy()</h2>
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<td class="memname">Glib::RefPtr<<a class="el" href="classGst_1_1Context.html">Gst::Context</a>> Gst::Context::copy </td>
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<p>Creates a copy of the context. </p>
<p>Returns a copy of the context.</p>
<dl class="section return"><dt>Returns</dt><dd>A new copy of <em>context</em>.</dd></dl>
<p>MT safe. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ae8d12392678b9c30f1e706b5780efdf9">◆ </a></span>create()</h2>
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<td class="memname">static Glib::RefPtr<<a class="el" href="classGst_1_1Context.html">Gst::Context</a>> Gst::Context::create </td>
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<td class="paramtype">const Glib::ustring & </td>
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<p>Create a new context. </p>
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<dl class="section return"><dt>Returns</dt><dd>The new context. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a8b508c9486859e20b21e27dcf4b2b294">◆ </a></span>get_context_type()</h2>
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<p>Get the type of <em>context</em>. </p>
<dl class="section return"><dt>Returns</dt><dd>The type of the context. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a58c0a6618dee4a97f22a1e80f2249819">◆ </a></span>gobj() <span class="overload">[1/2]</span></h2>
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<td class="memname">GstContext* Gst::Context::gobj </td>
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<p>Provides access to the underlying C instance. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a348872cac72af96b68a6d00d7c213edf">◆ </a></span>gobj() <span class="overload">[2/2]</span></h2>
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<td class="memname">const GstContext* Gst::Context::gobj </td>
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<p>Provides access to the underlying C instance. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ae0f13d14f43e0852948d9f5ae087e89f">◆ </a></span>gobj_copy()</h2>
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<td class="memname">GstContext* Gst::Context::gobj_copy </td>
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<p>Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a419c1699d6ba61b55e408c11a368c0fe">◆ </a></span>has_context_type()</h2>
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<td class="memname">bool Gst::Context::has_context_type </td>
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<p>Checks if <em>context</em> has <em>context_type</em>. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">context_type</td><td><a class="el" href="classGst_1_1Context.html" title="Lightweight objects to represent element contexts. ">Context</a> type to check. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd><code>true</code> if <em>context</em> has <em>context_type</em>. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a29b78297399d9cdb9833b1e3b4ca9707">◆ </a></span>is_persistent()</h2>
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<p><a class="el" href="classGst_1_1Check.html">Check</a> if <em>context</em> is persistent. </p>
<dl class="section return"><dt>Returns</dt><dd><code>true</code> if the context is persistent. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a4ee0bfaf7a4b2849c6eafe66b09ff8bc">◆ </a></span>operator delete()</h2>
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<td class="memname">void Gst::Context::operator delete </td>
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<h2 class="memtitle"><span class="permalink"><a href="#a716c65d5f58435ab2b9ce70dc8ae88c1">◆ </a></span>operator=()</h2>
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<td class="memname"><a class="el" href="classGst_1_1Context.html">Context</a>& Gst::Context::operator= </td>
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<span class="mlabels"><span class="mlabel">delete</span></span> </td>
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<h2 class="memtitle"><span class="permalink"><a href="#ad92c9b55e40da3f5a1c6f37c843ecef9">◆ </a></span>reference()</h2>
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<td class="memname">void Gst::Context::reference </td>
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<p>Increment the reference count for this object. </p>
<p>You should never need to do this manually - use the object via a RefPtr instead. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a37410a24ca79b4d703e6da735236e88b">◆ </a></span>unreference()</h2>
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<td class="memname">void Gst::Context::unreference </td>
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<p>Decrement the reference count for this object. </p>
<p>You should never need to do this manually - use the object via a RefPtr instead. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a4d9a1589adc27b2a691ea9d7a7092f0f">◆ </a></span>writable_structure()</h2>
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<td class="memname"><a class="el" href="classGst_1_1Structure.html">Gst::Structure</a> Gst::Context::writable_structure </td>
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<p>Get a writable version of the structure. </p>
<dl class="section return"><dt>Returns</dt><dd>The structure of the context. The structure is still owned by the context, which means that you should not free it and that the pointer becomes invalid when you free the context. This function checks if <em>context</em> is writable. </dd></dl>
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<h2 class="groupheader">Friends And Related Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#aee2d2684162420274929dbf03d66b717">◆ </a></span>wrap()</h2>
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<td class="memname">Glib::RefPtr< <a class="el" href="classGst_1_1Context.html">Gst::Context</a> > wrap </td>
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<p>A <a class="el" href="namespaceGlib.html#a43fcab2a44083e8b7b6a1c8193acae2b">Glib::wrap()</a> method for this object. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">object</td><td>The C instance. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>A C++ instance that wraps this C instance. </dd></dl>
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