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<title>GstTagList: GStreamer 1.0 Core Reference Manual</title>
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<a href="#GstTagList.object-hierarchy" class="shortcut">Object Hierarchy</a></span>
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<h2><span class="refentrytitle"><a name="GstTagList.top_of_page"></a>GstTagList</span></h2>
<p>GstTagList — List of tags and values used to describe media metadata</p>
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<div class="refsect1">
<a name="GstTagList.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="GstTagList.html#GstTagForeachFunc" title="GstTagForeachFunc ()">*GstTagForeachFunc</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="GstTagList.html#GstTagMergeFunc" title="GstTagMergeFunc ()">*GstTagMergeFunc</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-register" title="gst_tag_register ()">gst_tag_register</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-register-static" title="gst_tag_register_static ()">gst_tag_register_static</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-merge-use-first" title="gst_tag_merge_use_first ()">gst_tag_merge_use_first</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-merge-strings-with-comma" title="gst_tag_merge_strings_with_comma ()">gst_tag_merge_strings_with_comma</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-exists" title="gst_tag_exists ()">gst_tag_exists</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/gobjectgobject-Type-Information.html#GType"><span class="returnvalue">GType</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-get-type" title="gst_tag_get_type ()">gst_tag_get_type</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-get-nick" title="gst_tag_get_nick ()">gst_tag_get_nick</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-get-description" title="gst_tag_get_description ()">gst_tag_get_description</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GstTagList.html#GstTagFlag" title="enum GstTagFlag"><span class="returnvalue">GstTagFlag</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-get-flag" title="gst_tag_get_flag ()">gst_tag_get_flag</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-is-fixed" title="gst_tag_is_fixed ()">gst_tag_is_fixed</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GstTagList.html" title="GstTagList"><span class="returnvalue">GstTagList</span></a> *
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-new" title="gst_tag_list_new ()">gst_tag_list_new</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GstTagList.html" title="GstTagList"><span class="returnvalue">GstTagList</span></a> *
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-new-empty" title="gst_tag_list_new_empty ()">gst_tag_list_new_empty</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GstTagList.html" title="GstTagList"><span class="returnvalue">GstTagList</span></a> *
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-new-valist" title="gst_tag_list_new_valist ()">gst_tag_list_new_valist</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GstTagList.html" title="GstTagList"><span class="returnvalue">GstTagList</span></a> *
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-new-from-string" title="gst_tag_list_new_from_string ()">gst_tag_list_new_from_string</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-free" title="gst_tag_list_free()">gst_tag_list_free</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GstTagList.html#GstTagScope" title="enum GstTagScope"><span class="returnvalue">GstTagScope</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-scope" title="gst_tag_list_get_scope ()">gst_tag_list_get_scope</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-set-scope" title="gst_tag_list_set_scope ()">gst_tag_list_set_scope</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-to-string" title="gst_tag_list_to_string ()">gst_tag_list_to_string</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-is-empty" title="gst_tag_list_is_empty ()">gst_tag_list_is_empty</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-is-equal" title="gst_tag_list_is_equal ()">gst_tag_list_is_equal</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GstTagList.html" title="GstTagList"><span class="returnvalue">GstTagList</span></a> *
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-copy" title="gst_tag_list_copy ()">gst_tag_list_copy</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GstTagList.html" title="GstTagList"><span class="returnvalue">GstTagList</span></a> *
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-ref" title="gst_tag_list_ref ()">gst_tag_list_ref</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-unref" title="gst_tag_list_unref ()">gst_tag_list_unref</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-is-writable" title="gst_tag_list_is_writable()">gst_tag_list_is_writable</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-make-writable" title="gst_tag_list_make_writable()">gst_tag_list_make_writable</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-insert" title="gst_tag_list_insert ()">gst_tag_list_insert</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GstTagList.html" title="GstTagList"><span class="returnvalue">GstTagList</span></a> *
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-merge" title="gst_tag_list_merge ()">gst_tag_list_merge</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-tag-size" title="gst_tag_list_get_tag_size ()">gst_tag_list_get_tag_size</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-n-tags" title="gst_tag_list_n_tags ()">gst_tag_list_n_tags</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-nth-tag-name" title="gst_tag_list_nth_tag_name ()">gst_tag_list_nth_tag_name</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-add" title="gst_tag_list_add ()">gst_tag_list_add</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-add-value" title="gst_tag_list_add_value ()">gst_tag_list_add_value</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-add-values" title="gst_tag_list_add_values ()">gst_tag_list_add_values</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-add-valist" title="gst_tag_list_add_valist ()">gst_tag_list_add_valist</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-add-valist-values" title="gst_tag_list_add_valist_values ()">gst_tag_list_add_valist_values</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-remove-tag" title="gst_tag_list_remove_tag ()">gst_tag_list_remove_tag</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-foreach" title="gst_tag_list_foreach ()">gst_tag_list_foreach</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <a href="/usr/share/gtk-doc/html/gobjectgobject-Generic-values.html#GValue"><span class="returnvalue">GValue</span></a> *
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-value-index" title="gst_tag_list_get_value_index ()">gst_tag_list_get_value_index</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-copy-value" title="gst_tag_list_copy_value ()">gst_tag_list_copy_value</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-boolean" title="gst_tag_list_get_boolean ()">gst_tag_list_get_boolean</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-boolean-index" title="gst_tag_list_get_boolean_index ()">gst_tag_list_get_boolean_index</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-int" title="gst_tag_list_get_int ()">gst_tag_list_get_int</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-int-index" title="gst_tag_list_get_int_index ()">gst_tag_list_get_int_index</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-uint" title="gst_tag_list_get_uint ()">gst_tag_list_get_uint</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-uint-index" title="gst_tag_list_get_uint_index ()">gst_tag_list_get_uint_index</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-int64" title="gst_tag_list_get_int64 ()">gst_tag_list_get_int64</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-int64-index" title="gst_tag_list_get_int64_index ()">gst_tag_list_get_int64_index</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-uint64" title="gst_tag_list_get_uint64 ()">gst_tag_list_get_uint64</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-uint64-index" title="gst_tag_list_get_uint64_index ()">gst_tag_list_get_uint64_index</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-float" title="gst_tag_list_get_float ()">gst_tag_list_get_float</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-float-index" title="gst_tag_list_get_float_index ()">gst_tag_list_get_float_index</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-double" title="gst_tag_list_get_double ()">gst_tag_list_get_double</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-double-index" title="gst_tag_list_get_double_index ()">gst_tag_list_get_double_index</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-string" title="gst_tag_list_get_string ()">gst_tag_list_get_string</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-string-index" title="gst_tag_list_get_string_index ()">gst_tag_list_get_string_index</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-peek-string-index" title="gst_tag_list_peek_string_index ()">gst_tag_list_peek_string_index</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-pointer" title="gst_tag_list_get_pointer ()">gst_tag_list_get_pointer</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-pointer-index" title="gst_tag_list_get_pointer_index ()">gst_tag_list_get_pointer_index</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-date" title="gst_tag_list_get_date ()">gst_tag_list_get_date</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-date-index" title="gst_tag_list_get_date_index ()">gst_tag_list_get_date_index</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-date-time" title="gst_tag_list_get_date_time ()">gst_tag_list_get_date_time</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-date-time-index" title="gst_tag_list_get_date_time_index ()">gst_tag_list_get_date_time_index</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-sample" title="gst_tag_list_get_sample ()">gst_tag_list_get_sample</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="GstTagList.html#gst-tag-list-get-sample-index" title="gst_tag_list_get_sample_index ()">gst_tag_list_get_sample_index</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GstTagList.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody>
<tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="GstTagList.html#GstTagList-struct" title="struct GstTagList">GstTagList</a></td>
</tr>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="GstTagList.html#GstTagMergeMode" title="enum GstTagMergeMode">GstTagMergeMode</a></td>
</tr>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="GstTagList.html#GstTagFlag" title="enum GstTagFlag">GstTagFlag</a></td>
</tr>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="GstTagList.html#GstTagScope" title="enum GstTagScope">GstTagScope</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-TITLE:CAPS" title="GST_TAG_TITLE">GST_TAG_TITLE</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-TITLE-SORTNAME:CAPS" title="GST_TAG_TITLE_SORTNAME">GST_TAG_TITLE_SORTNAME</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-ARTIST:CAPS" title="GST_TAG_ARTIST">GST_TAG_ARTIST</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-ARTIST-SORTNAME:CAPS" title="GST_TAG_ARTIST_SORTNAME">GST_TAG_ARTIST_SORTNAME</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-ALBUM:CAPS" title="GST_TAG_ALBUM">GST_TAG_ALBUM</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-ALBUM-SORTNAME:CAPS" title="GST_TAG_ALBUM_SORTNAME">GST_TAG_ALBUM_SORTNAME</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-ALBUM-ARTIST:CAPS" title="GST_TAG_ALBUM_ARTIST">GST_TAG_ALBUM_ARTIST</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-ALBUM-ARTIST-SORTNAME:CAPS" title="GST_TAG_ALBUM_ARTIST_SORTNAME">GST_TAG_ALBUM_ARTIST_SORTNAME</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-DATE:CAPS" title="GST_TAG_DATE">GST_TAG_DATE</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-DATE-TIME:CAPS" title="GST_TAG_DATE_TIME">GST_TAG_DATE_TIME</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-GENRE:CAPS" title="GST_TAG_GENRE">GST_TAG_GENRE</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-COMMENT:CAPS" title="GST_TAG_COMMENT">GST_TAG_COMMENT</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-EXTENDED-COMMENT:CAPS" title="GST_TAG_EXTENDED_COMMENT">GST_TAG_EXTENDED_COMMENT</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-TRACK-NUMBER:CAPS" title="GST_TAG_TRACK_NUMBER">GST_TAG_TRACK_NUMBER</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-TRACK-COUNT:CAPS" title="GST_TAG_TRACK_COUNT">GST_TAG_TRACK_COUNT</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-ALBUM-VOLUME-NUMBER:CAPS" title="GST_TAG_ALBUM_VOLUME_NUMBER">GST_TAG_ALBUM_VOLUME_NUMBER</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-ALBUM-VOLUME-COUNT:CAPS" title="GST_TAG_ALBUM_VOLUME_COUNT">GST_TAG_ALBUM_VOLUME_COUNT</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-LOCATION:CAPS" title="GST_TAG_LOCATION">GST_TAG_LOCATION</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-HOMEPAGE:CAPS" title="GST_TAG_HOMEPAGE">GST_TAG_HOMEPAGE</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-DESCRIPTION:CAPS" title="GST_TAG_DESCRIPTION">GST_TAG_DESCRIPTION</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-VERSION:CAPS" title="GST_TAG_VERSION">GST_TAG_VERSION</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-ISRC:CAPS" title="GST_TAG_ISRC">GST_TAG_ISRC</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-ORGANIZATION:CAPS" title="GST_TAG_ORGANIZATION">GST_TAG_ORGANIZATION</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-COPYRIGHT:CAPS" title="GST_TAG_COPYRIGHT">GST_TAG_COPYRIGHT</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-COPYRIGHT-URI:CAPS" title="GST_TAG_COPYRIGHT_URI">GST_TAG_COPYRIGHT_URI</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-ENCODED-BY:CAPS" title="GST_TAG_ENCODED_BY">GST_TAG_ENCODED_BY</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-COMPOSER:CAPS" title="GST_TAG_COMPOSER">GST_TAG_COMPOSER</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-CONTACT:CAPS" title="GST_TAG_CONTACT">GST_TAG_CONTACT</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-LICENSE:CAPS" title="GST_TAG_LICENSE">GST_TAG_LICENSE</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-LICENSE-URI:CAPS" title="GST_TAG_LICENSE_URI">GST_TAG_LICENSE_URI</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-PERFORMER:CAPS" title="GST_TAG_PERFORMER">GST_TAG_PERFORMER</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-DURATION:CAPS" title="GST_TAG_DURATION">GST_TAG_DURATION</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-CODEC:CAPS" title="GST_TAG_CODEC">GST_TAG_CODEC</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-VIDEO-CODEC:CAPS" title="GST_TAG_VIDEO_CODEC">GST_TAG_VIDEO_CODEC</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-AUDIO-CODEC:CAPS" title="GST_TAG_AUDIO_CODEC">GST_TAG_AUDIO_CODEC</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-SUBTITLE-CODEC:CAPS" title="GST_TAG_SUBTITLE_CODEC">GST_TAG_SUBTITLE_CODEC</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-CONTAINER-FORMAT:CAPS" title="GST_TAG_CONTAINER_FORMAT">GST_TAG_CONTAINER_FORMAT</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-BITRATE:CAPS" title="GST_TAG_BITRATE">GST_TAG_BITRATE</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-NOMINAL-BITRATE:CAPS" title="GST_TAG_NOMINAL_BITRATE">GST_TAG_NOMINAL_BITRATE</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-MINIMUM-BITRATE:CAPS" title="GST_TAG_MINIMUM_BITRATE">GST_TAG_MINIMUM_BITRATE</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-MAXIMUM-BITRATE:CAPS" title="GST_TAG_MAXIMUM_BITRATE">GST_TAG_MAXIMUM_BITRATE</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-SERIAL:CAPS" title="GST_TAG_SERIAL">GST_TAG_SERIAL</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-ENCODER:CAPS" title="GST_TAG_ENCODER">GST_TAG_ENCODER</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-ENCODER-VERSION:CAPS" title="GST_TAG_ENCODER_VERSION">GST_TAG_ENCODER_VERSION</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-TRACK-GAIN:CAPS" title="GST_TAG_TRACK_GAIN">GST_TAG_TRACK_GAIN</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-TRACK-PEAK:CAPS" title="GST_TAG_TRACK_PEAK">GST_TAG_TRACK_PEAK</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-ALBUM-GAIN:CAPS" title="GST_TAG_ALBUM_GAIN">GST_TAG_ALBUM_GAIN</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-ALBUM-PEAK:CAPS" title="GST_TAG_ALBUM_PEAK">GST_TAG_ALBUM_PEAK</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-REFERENCE-LEVEL:CAPS" title="GST_TAG_REFERENCE_LEVEL">GST_TAG_REFERENCE_LEVEL</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-LANGUAGE-CODE:CAPS" title="GST_TAG_LANGUAGE_CODE">GST_TAG_LANGUAGE_CODE</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-LANGUAGE-NAME:CAPS" title="GST_TAG_LANGUAGE_NAME">GST_TAG_LANGUAGE_NAME</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-IMAGE:CAPS" title="GST_TAG_IMAGE">GST_TAG_IMAGE</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-PREVIEW-IMAGE:CAPS" title="GST_TAG_PREVIEW_IMAGE">GST_TAG_PREVIEW_IMAGE</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-ATTACHMENT:CAPS" title="GST_TAG_ATTACHMENT">GST_TAG_ATTACHMENT</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-BEATS-PER-MINUTE:CAPS" title="GST_TAG_BEATS_PER_MINUTE">GST_TAG_BEATS_PER_MINUTE</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-KEYWORDS:CAPS" title="GST_TAG_KEYWORDS">GST_TAG_KEYWORDS</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-GEO-LOCATION-NAME:CAPS" title="GST_TAG_GEO_LOCATION_NAME">GST_TAG_GEO_LOCATION_NAME</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-GEO-LOCATION-LATITUDE:CAPS" title="GST_TAG_GEO_LOCATION_LATITUDE">GST_TAG_GEO_LOCATION_LATITUDE</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-GEO-LOCATION-LONGITUDE:CAPS" title="GST_TAG_GEO_LOCATION_LONGITUDE">GST_TAG_GEO_LOCATION_LONGITUDE</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-GEO-LOCATION-ELEVATION:CAPS" title="GST_TAG_GEO_LOCATION_ELEVATION">GST_TAG_GEO_LOCATION_ELEVATION</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-GEO-LOCATION-CITY:CAPS" title="GST_TAG_GEO_LOCATION_CITY">GST_TAG_GEO_LOCATION_CITY</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-GEO-LOCATION-COUNTRY:CAPS" title="GST_TAG_GEO_LOCATION_COUNTRY">GST_TAG_GEO_LOCATION_COUNTRY</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-GEO-LOCATION-SUBLOCATION:CAPS" title="GST_TAG_GEO_LOCATION_SUBLOCATION">GST_TAG_GEO_LOCATION_SUBLOCATION</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-GEO-LOCATION-HORIZONTAL-ERROR:CAPS" title="GST_TAG_GEO_LOCATION_HORIZONTAL_ERROR">GST_TAG_GEO_LOCATION_HORIZONTAL_ERROR</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-GEO-LOCATION-MOVEMENT-DIRECTION:CAPS" title="GST_TAG_GEO_LOCATION_MOVEMENT_DIRECTION">GST_TAG_GEO_LOCATION_MOVEMENT_DIRECTION</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-GEO-LOCATION-MOVEMENT-SPEED:CAPS" title="GST_TAG_GEO_LOCATION_MOVEMENT_SPEED">GST_TAG_GEO_LOCATION_MOVEMENT_SPEED</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-GEO-LOCATION-CAPTURE-DIRECTION:CAPS" title="GST_TAG_GEO_LOCATION_CAPTURE_DIRECTION">GST_TAG_GEO_LOCATION_CAPTURE_DIRECTION</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-SHOW-NAME:CAPS" title="GST_TAG_SHOW_NAME">GST_TAG_SHOW_NAME</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-SHOW-SORTNAME:CAPS" title="GST_TAG_SHOW_SORTNAME">GST_TAG_SHOW_SORTNAME</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-SHOW-EPISODE-NUMBER:CAPS" title="GST_TAG_SHOW_EPISODE_NUMBER">GST_TAG_SHOW_EPISODE_NUMBER</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-SHOW-SEASON-NUMBER:CAPS" title="GST_TAG_SHOW_SEASON_NUMBER">GST_TAG_SHOW_SEASON_NUMBER</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-LYRICS:CAPS" title="GST_TAG_LYRICS">GST_TAG_LYRICS</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-COMPOSER-SORTNAME:CAPS" title="GST_TAG_COMPOSER_SORTNAME">GST_TAG_COMPOSER_SORTNAME</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-GROUPING:CAPS" title="GST_TAG_GROUPING">GST_TAG_GROUPING</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-USER-RATING:CAPS" title="GST_TAG_USER_RATING">GST_TAG_USER_RATING</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-DEVICE-MANUFACTURER:CAPS" title="GST_TAG_DEVICE_MANUFACTURER">GST_TAG_DEVICE_MANUFACTURER</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-DEVICE-MODEL:CAPS" title="GST_TAG_DEVICE_MODEL">GST_TAG_DEVICE_MODEL</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-APPLICATION-NAME:CAPS" title="GST_TAG_APPLICATION_NAME">GST_TAG_APPLICATION_NAME</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-APPLICATION-DATA:CAPS" title="GST_TAG_APPLICATION_DATA">GST_TAG_APPLICATION_DATA</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-IMAGE-ORIENTATION:CAPS" title="GST_TAG_IMAGE_ORIENTATION">GST_TAG_IMAGE_ORIENTATION</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-PUBLISHER:CAPS" title="GST_TAG_PUBLISHER">GST_TAG_PUBLISHER</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-INTERPRETED-BY:CAPS" title="GST_TAG_INTERPRETED_BY">GST_TAG_INTERPRETED_BY</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-MIDI-BASE-NOTE:CAPS" title="GST_TAG_MIDI_BASE_NOTE">GST_TAG_MIDI_BASE_NOTE</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="GstTagList.html#GST-TAG-PRIVATE-DATA:CAPS" title="GST_TAG_PRIVATE_DATA">GST_TAG_PRIVATE_DATA</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GstTagList.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen"> <a href="https://developer.gnome.org/gobject/unstable/gobject-Boxed-Types.html">GBoxed</a>
<span class="lineart">╰──</span> GstTagList
</pre>
</div>
<div class="refsect1">
<a name="GstTagList.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include &lt;gst/gst.h&gt;
</pre>
</div>
<div class="refsect1">
<a name="GstTagList.description"></a><h2>Description</h2>
<p>List of tags and values used to describe media metadata.</p>
<p>Strings in structures must be ASCII or UTF-8 encoded. Other encodings are
not allowed. Strings must not be empty or <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</p>
</div>
<div class="refsect1">
<a name="GstTagList.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="GstTagForeachFunc"></a><h3>GstTagForeachFunc ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
<span class="c_punctuation">(</span>*GstTagForeachFunc<span class="c_punctuation">)</span> (<em class="parameter"><code>const <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> *list</code></em>,
<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *tag</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
<p>A function that will be called in <a class="link" href="GstTagList.html#gst-tag-list-foreach" title="gst_tag_list_foreach ()"><code class="function">gst_tag_list_foreach()</code></a>. The function may
not modify the tag list.</p>
<div class="refsect3">
<a name="GstTagForeachFunc.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>list</p></td>
<td class="parameter_description"><p>the <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>tag</p></td>
<td class="parameter_description"><p>a name of a tag in <em class="parameter"><code>list</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GstTagMergeFunc"></a><h3>GstTagMergeFunc ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
<span class="c_punctuation">(</span>*GstTagMergeFunc<span class="c_punctuation">)</span> (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobjectgobject-Generic-values.html#GValue"><span class="type">GValue</span></a> *dest</code></em>,
<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobjectgobject-Generic-values.html#GValue"><span class="type">GValue</span></a> *src</code></em>);</pre>
<p>A function for merging multiple values of a tag used when registering
tags.</p>
<div class="refsect3">
<a name="GstTagMergeFunc.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>dest</p></td>
<td class="parameter_description"><p>the destination <a href="/usr/share/gtk-doc/html/gobjectgobject-Generic-values.html#GValue"><span class="type">GValue</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>src</p></td>
<td class="parameter_description"><p>the source <a href="/usr/share/gtk-doc/html/gobjectgobject-Generic-values.html#GValue"><span class="type">GValue</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-register"></a><h3>gst_tag_register ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_tag_register (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>,
<em class="parameter"><code><a class="link" href="GstTagList.html#GstTagFlag" title="enum GstTagFlag"><span class="type">GstTagFlag</span></a> flag</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobjectgobject-Type-Information.html#GType"><span class="type">GType</span></a> type</code></em>,
<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *nick</code></em>,
<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *blurb</code></em>,
<em class="parameter"><code><a class="link" href="GstTagList.html#GstTagMergeFunc" title="GstTagMergeFunc ()"><span class="type">GstTagMergeFunc</span></a> func</code></em>);</pre>
<p>Registers a new tag type for the use with GStreamer's type system. If a type
with that name is already registered, that one is used.
The old registration may have used a different type however. So don't rely
on your supplied values.</p>
<p>Important: if you do not supply a merge function the implication will be
that there can only be one single value for this tag in a tag list and
any additional values will silently be discarded when being added (unless
<a class="link" href="GstTagList.html#GST-TAG-MERGE-REPLACE:CAPS"><span class="type">GST_TAG_MERGE_REPLACE</span></a>, <a class="link" href="GstTagList.html#GST-TAG-MERGE-REPLACE-ALL:CAPS"><span class="type">GST_TAG_MERGE_REPLACE_ALL</span></a>, or
<a class="link" href="GstTagList.html#GST-TAG-MERGE-PREPEND:CAPS"><span class="type">GST_TAG_MERGE_PREPEND</span></a> is used as merge mode, in which case the new
value will replace the old one in the list).</p>
<p>The merge function will be called from <a class="link" href="GstTagList.html#gst-tag-list-copy-value" title="gst_tag_list_copy_value ()"><code class="function">gst_tag_list_copy_value()</code></a> when
it is required that one or more values for a tag be condensed into
one single value. This may happen from <a class="link" href="GstTagList.html#gst-tag-list-get-string" title="gst_tag_list_get_string ()"><code class="function">gst_tag_list_get_string()</code></a>,
<a class="link" href="GstTagList.html#gst-tag-list-get-int" title="gst_tag_list_get_int ()"><code class="function">gst_tag_list_get_int()</code></a>, <a class="link" href="GstTagList.html#gst-tag-list-get-double" title="gst_tag_list_get_double ()"><code class="function">gst_tag_list_get_double()</code></a> etc. What will happen
exactly in that case depends on how the tag was registered and if a
merge function was supplied and if so which one.</p>
<p>Two default merge functions are provided: <a class="link" href="GstTagList.html#gst-tag-merge-use-first" title="gst_tag_merge_use_first ()"><code class="function">gst_tag_merge_use_first()</code></a> and
<a class="link" href="GstTagList.html#gst-tag-merge-strings-with-comma" title="gst_tag_merge_strings_with_comma ()"><code class="function">gst_tag_merge_strings_with_comma()</code></a>.</p>
<div class="refsect3">
<a name="gst-tag-register.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>name</p></td>
<td class="parameter_description"><p>the name or identifier string</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>flag</p></td>
<td class="parameter_description"><p>a flag describing the type of tag info</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>type</p></td>
<td class="parameter_description"><p>the type this data is in</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>nick</p></td>
<td class="parameter_description"><p>human-readable name</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>blurb</p></td>
<td class="parameter_description"><p>a human-readable description about this tag</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>func</p></td>
<td class="parameter_description"><p> function for merging multiple values of this tag, or <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>][<acronym title="The callback is valid only during the call to the method."><span class="acronym">scope call</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-register-static"></a><h3>gst_tag_register_static ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_tag_register_static (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>,
<em class="parameter"><code><a class="link" href="GstTagList.html#GstTagFlag" title="enum GstTagFlag"><span class="type">GstTagFlag</span></a> flag</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobjectgobject-Type-Information.html#GType"><span class="type">GType</span></a> type</code></em>,
<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *nick</code></em>,
<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *blurb</code></em>,
<em class="parameter"><code><a class="link" href="GstTagList.html#GstTagMergeFunc" title="GstTagMergeFunc ()"><span class="type">GstTagMergeFunc</span></a> func</code></em>);</pre>
<p>Registers a new tag type for the use with GStreamer's type system.</p>
<p>Same as <a class="link" href="GstTagList.html#gst-tag-register" title="gst_tag_register ()"><code class="function">gst_tag_register()</code></a>, but <em class="parameter"><code>name</code></em>
, <em class="parameter"><code>nick</code></em>
, and <em class="parameter"><code>blurb</code></em>
must be
static strings or inlined strings, as they will not be copied. (GStreamer
plugins will be made resident once loaded, so this function can be used
even from dynamically loaded plugins.)</p>
<div class="refsect3">
<a name="gst-tag-register-static.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>name</p></td>
<td class="parameter_description"><p>the name or identifier string (string constant)</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>flag</p></td>
<td class="parameter_description"><p>a flag describing the type of tag info</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>type</p></td>
<td class="parameter_description"><p>the type this data is in</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>nick</p></td>
<td class="parameter_description"><p>human-readable name or short description (string constant)</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>blurb</p></td>
<td class="parameter_description"><p>a human-readable description for this tag (string constant)</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>func</p></td>
<td class="parameter_description"><p> function for merging multiple values of this tag, or <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>][<acronym title="The callback is valid only during the call to the method."><span class="acronym">scope call</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-merge-use-first"></a><h3>gst_tag_merge_use_first ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_tag_merge_use_first (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobjectgobject-Generic-values.html#GValue"><span class="type">GValue</span></a> *dest</code></em>,
<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobjectgobject-Generic-values.html#GValue"><span class="type">GValue</span></a> *src</code></em>);</pre>
<p>This is a convenience function for the func argument of <a class="link" href="GstTagList.html#gst-tag-register" title="gst_tag_register ()"><code class="function">gst_tag_register()</code></a>.
It creates a copy of the first value from the list.</p>
<div class="refsect3">
<a name="gst-tag-merge-use-first.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>dest</p></td>
<td class="parameter_description"><p> uninitialized GValue to store result in. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Out parameter, where caller must allocate storage."><span class="acronym">out caller-allocates</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>src</p></td>
<td class="parameter_description"><p>GValue to copy from</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-merge-strings-with-comma"></a><h3>gst_tag_merge_strings_with_comma ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_tag_merge_strings_with_comma (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobjectgobject-Generic-values.html#GValue"><span class="type">GValue</span></a> *dest</code></em>,
<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobjectgobject-Generic-values.html#GValue"><span class="type">GValue</span></a> *src</code></em>);</pre>
<p>This is a convenience function for the func argument of <a class="link" href="GstTagList.html#gst-tag-register" title="gst_tag_register ()"><code class="function">gst_tag_register()</code></a>.
It concatenates all given strings using a comma. The tag must be registered
as a G_TYPE_STRING or this function will fail.</p>
<div class="refsect3">
<a name="gst-tag-merge-strings-with-comma.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>dest</p></td>
<td class="parameter_description"><p> uninitialized GValue to store result in. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Out parameter, where caller must allocate storage."><span class="acronym">out caller-allocates</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>src</p></td>
<td class="parameter_description"><p>GValue to copy from</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-exists"></a><h3>gst_tag_exists ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_tag_exists (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *tag</code></em>);</pre>
<p>Checks if the given type is already registered.</p>
<div class="refsect3">
<a name="gst-tag-exists.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>tag</p></td>
<td class="parameter_description"><p>name of the tag</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-tag-exists.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the type is already registered</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-get-type"></a><h3>gst_tag_get_type ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/gobjectgobject-Type-Information.html#GType"><span class="returnvalue">GType</span></a>
gst_tag_get_type (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *tag</code></em>);</pre>
<p>Gets the <a href="/usr/share/gtk-doc/html/gobjectgobject-Type-Information.html#GType"><span class="type">GType</span></a> used for this tag.</p>
<div class="refsect3">
<a name="gst-tag-get-type.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>tag</p></td>
<td class="parameter_description"><p>the tag</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-tag-get-type.returns"></a><h4>Returns</h4>
<p> the <a href="/usr/share/gtk-doc/html/gobjectgobject-Type-Information.html#GType"><span class="type">GType</span></a> of this tag</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-get-nick"></a><h3>gst_tag_get_nick ()</h3>
<pre class="programlisting">const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
gst_tag_get_nick (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *tag</code></em>);</pre>
<p>Returns the human-readable name of this tag, You must not change or free
this string.</p>
<div class="refsect3">
<a name="gst-tag-get-nick.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>tag</p></td>
<td class="parameter_description"><p>the tag</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-tag-get-nick.returns"></a><h4>Returns</h4>
<p> the human-readable name of this tag</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-get-description"></a><h3>gst_tag_get_description ()</h3>
<pre class="programlisting">const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
gst_tag_get_description (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *tag</code></em>);</pre>
<p>Returns the human-readable description of this tag, You must not change or
free this string.</p>
<div class="refsect3">
<a name="gst-tag-get-description.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>tag</p></td>
<td class="parameter_description"><p>the tag</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-tag-get-description.returns"></a><h4>Returns</h4>
<p> the human-readable description of this tag</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-get-flag"></a><h3>gst_tag_get_flag ()</h3>
<pre class="programlisting"><a class="link" href="GstTagList.html#GstTagFlag" title="enum GstTagFlag"><span class="returnvalue">GstTagFlag</span></a>
gst_tag_get_flag (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *tag</code></em>);</pre>
<p>Gets the flag of <em class="parameter"><code>tag</code></em>
.</p>
<div class="refsect3">
<a name="gst-tag-get-flag.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>tag</p></td>
<td class="parameter_description"><p>the tag</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-tag-get-flag.returns"></a><h4>Returns</h4>
<p> the flag of this tag.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-is-fixed"></a><h3>gst_tag_is_fixed ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_tag_is_fixed (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *tag</code></em>);</pre>
<p>Checks if the given tag is fixed. A fixed tag can only contain one value.
Unfixed tags can contain lists of values.</p>
<div class="refsect3">
<a name="gst-tag-is-fixed.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>tag</p></td>
<td class="parameter_description"><p>tag to check</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-tag-is-fixed.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>, if the given tag is fixed.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-list-new"></a><h3>gst_tag_list_new ()</h3>
<pre class="programlisting"><a class="link" href="GstTagList.html" title="GstTagList"><span class="returnvalue">GstTagList</span></a> *
gst_tag_list_new (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *tag</code></em>,
<em class="parameter"><code>...</code></em>);</pre>
<p>Creates a new taglist and appends the values for the given tags. It expects
tag-value pairs like <a class="link" href="GstTagList.html#gst-tag-list-add" title="gst_tag_list_add ()"><code class="function">gst_tag_list_add()</code></a>, and a <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> terminator after the
last pair. The type of the values is implicit and is documented in the API
reference, but can also be queried at runtime with <a class="link" href="GstTagList.html#gst-tag-get-type" title="gst_tag_get_type ()"><code class="function">gst_tag_get_type()</code></a>. It
is an error to pass a value of a type not matching the tag type into this
function. The tag list will make copies of any arguments passed
(e.g. strings, buffers).</p>
<p>After creation you might also want to set a <a class="link" href="GstTagList.html#GstTagScope" title="enum GstTagScope"><span class="type">GstTagScope</span></a> on the returned
taglist to signal if the contained tags are global or stream tags. By
default stream scope is assumes. See <a class="link" href="GstTagList.html#gst-tag-list-set-scope" title="gst_tag_list_set_scope ()"><code class="function">gst_tag_list_set_scope()</code></a>.</p>
<p>Free-function: gst_tag_list_unref</p>
<div class="refsect3">
<a name="gst-tag-list-new.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tag</p></td>
<td class="parameter_description"><p>tag</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>...</p></td>
<td class="parameter_description"><p><a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>-terminated list of values to set</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-tag-list-new.returns"></a><h4>Returns</h4>
<p> a new <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a>. Free with <a class="link" href="GstTagList.html#gst-tag-list-unref" title="gst_tag_list_unref ()"><code class="function">gst_tag_list_unref()</code></a>
when no longer needed. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-list-new-empty"></a><h3>gst_tag_list_new_empty ()</h3>
<pre class="programlisting"><a class="link" href="GstTagList.html" title="GstTagList"><span class="returnvalue">GstTagList</span></a> *
gst_tag_list_new_empty (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Creates a new empty GstTagList.</p>
<p>Free-function: gst_tag_list_unref</p>
<div class="refsect3">
<a name="gst-tag-list-new-empty.returns"></a><h4>Returns</h4>
<p> An empty tag list. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-list-new-valist"></a><h3>gst_tag_list_new_valist ()</h3>
<pre class="programlisting"><a class="link" href="GstTagList.html" title="GstTagList"><span class="returnvalue">GstTagList</span></a> *
gst_tag_list_new_valist (<em class="parameter"><code><span class="type">va_list</span> var_args</code></em>);</pre>
<p>Just like <a class="link" href="GstTagList.html#gst-tag-list-new" title="gst_tag_list_new ()"><code class="function">gst_tag_list_new()</code></a>, only that it takes a va_list argument.
Useful mostly for language bindings.</p>
<p>Free-function: gst_tag_list_unref</p>
<div class="refsect3">
<a name="gst-tag-list-new-valist.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>var_args</p></td>
<td class="parameter_description"><p>tag / value pairs to set</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-tag-list-new-valist.returns"></a><h4>Returns</h4>
<p> a new <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a>. Free with <a class="link" href="GstTagList.html#gst-tag-list-unref" title="gst_tag_list_unref ()"><code class="function">gst_tag_list_unref()</code></a>
when no longer needed. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-list-new-from-string"></a><h3>gst_tag_list_new_from_string ()</h3>
<pre class="programlisting"><a class="link" href="GstTagList.html" title="GstTagList"><span class="returnvalue">GstTagList</span></a> *
gst_tag_list_new_from_string (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *str</code></em>);</pre>
<p>Deserializes a tag list.</p>
<div class="refsect3">
<a name="gst-tag-list-new-from-string.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>str</p></td>
<td class="parameter_description"><p>a string created with <a class="link" href="GstTagList.html#gst-tag-list-to-string" title="gst_tag_list_to_string ()"><code class="function">gst_tag_list_to_string()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-tag-list-new-from-string.returns"></a><h4>Returns</h4>
<p> a new <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a>, or <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> in case of an
error. </p>
<p><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-list-free"></a><h3>gst_tag_list_free()</h3>
<pre class="programlisting">#define gst_tag_list_free(taglist) gst_tag_list_unref(taglist)
</pre>
<div class="warning"><p><code class="literal">gst_tag_list_free</code> is deprecated and should not be used in newly-written code.</p></div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-list-get-scope"></a><h3>gst_tag_list_get_scope ()</h3>
<pre class="programlisting"><a class="link" href="GstTagList.html#GstTagScope" title="enum GstTagScope"><span class="returnvalue">GstTagScope</span></a>
gst_tag_list_get_scope (<em class="parameter"><code>const <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> *list</code></em>);</pre>
<p>Gets the scope of <em class="parameter"><code>list</code></em>
.</p>
<div class="refsect3">
<a name="gst-tag-list-get-scope.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>list</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-tag-list-get-scope.returns"></a><h4>Returns</h4>
<p> The scope of <em class="parameter"><code>list</code></em>
</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-list-set-scope"></a><h3>gst_tag_list_set_scope ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_tag_list_set_scope (<em class="parameter"><code><a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> *list</code></em>,
<em class="parameter"><code><a class="link" href="GstTagList.html#GstTagScope" title="enum GstTagScope"><span class="type">GstTagScope</span></a> scope</code></em>);</pre>
<p>Sets the scope of <em class="parameter"><code>list</code></em>
to <em class="parameter"><code>scope</code></em>
. By default the scope
of a taglist is stream scope.</p>
<div class="refsect3">
<a name="gst-tag-list-set-scope.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>list</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>scope</p></td>
<td class="parameter_description"><p>new scope for <em class="parameter"><code>list</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-list-to-string"></a><h3>gst_tag_list_to_string ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
gst_tag_list_to_string (<em class="parameter"><code>const <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> *list</code></em>);</pre>
<p>Serializes a tag list to a string.</p>
<div class="refsect3">
<a name="gst-tag-list-to-string.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>list</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-tag-list-to-string.returns"></a><h4>Returns</h4>
<p> a newly-allocated string, or <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> in case of
an error. The string must be freed with <a href="/usr/share/gtk-doc/html/glibglib-Memory-Allocation.html#g-free"><code class="function">g_free()</code></a> when no longer
needed. </p>
<p><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-list-is-empty"></a><h3>gst_tag_list_is_empty ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_tag_list_is_empty (<em class="parameter"><code>const <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> *list</code></em>);</pre>
<p>Checks if the given taglist is empty.</p>
<div class="refsect3">
<a name="gst-tag-list-is-empty.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>list</p></td>
<td class="parameter_description"><p>A <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-tag-list-is-empty.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the taglist is empty, otherwise <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a>.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-list-is-equal"></a><h3>gst_tag_list_is_equal ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_tag_list_is_equal (<em class="parameter"><code>const <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> *list1</code></em>,
<em class="parameter"><code>const <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> *list2</code></em>);</pre>
<p>Checks if the two given taglists are equal.</p>
<div class="refsect3">
<a name="gst-tag-list-is-equal.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>list1</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>list2</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-tag-list-is-equal.returns"></a><h4>Returns</h4>
<p> <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the taglists are equal, otherwise <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-list-copy"></a><h3>gst_tag_list_copy ()</h3>
<pre class="programlisting"><a class="link" href="GstTagList.html" title="GstTagList"><span class="returnvalue">GstTagList</span></a> *
gst_tag_list_copy (<em class="parameter"><code>const <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> *taglist</code></em>);</pre>
<p>Creates a new <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> as a copy of the old <em class="parameter"><code>taglist</code></em>
. The new taglist
will have a refcount of 1, owned by the caller, and will be writable as
a result.</p>
<p>Note that this function is the semantic equivalent of a <a class="link" href="GstTagList.html#gst-tag-list-ref" title="gst_tag_list_ref ()"><code class="function">gst_tag_list_ref()</code></a>
followed by a <a class="link" href="GstTagList.html#gst-tag-list-make-writable" title="gst_tag_list_make_writable()"><code class="function">gst_tag_list_make_writable()</code></a>. If you only want to hold on to a
reference to the data, you should use <a class="link" href="GstTagList.html#gst-tag-list-ref" title="gst_tag_list_ref ()"><code class="function">gst_tag_list_ref()</code></a>.</p>
<p>When you are finished with the taglist, call <a class="link" href="GstTagList.html#gst-tag-list-unref" title="gst_tag_list_unref ()"><code class="function">gst_tag_list_unref()</code></a> on it.</p>
<div class="refsect3">
<a name="gst-tag-list-copy.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>taglist</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-tag-list-copy.returns"></a><h4>Returns</h4>
<p> the new <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-list-ref"></a><h3>gst_tag_list_ref ()</h3>
<pre class="programlisting"><a class="link" href="GstTagList.html" title="GstTagList"><span class="returnvalue">GstTagList</span></a> *
gst_tag_list_ref (<em class="parameter"><code><a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> *taglist</code></em>);</pre>
<p>Add a reference to a <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> mini object.</p>
<p>From this point on, until the caller calls <a class="link" href="GstTagList.html#gst-tag-list-unref" title="gst_tag_list_unref ()"><code class="function">gst_tag_list_unref()</code></a> or
<a class="link" href="GstTagList.html#gst-tag-list-make-writable" title="gst_tag_list_make_writable()"><code class="function">gst_tag_list_make_writable()</code></a>, it is guaranteed that the taglist object will
not change. To use a <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> object, you must always have a refcount on
it -- either the one made implicitly by e.g. <a class="link" href="GstTagList.html#gst-tag-list-new" title="gst_tag_list_new ()"><code class="function">gst_tag_list_new()</code></a>, or via
taking one explicitly with this function.</p>
<div class="refsect3">
<a name="gst-tag-list-ref.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>taglist</p></td>
<td class="parameter_description"><p>the <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> to reference</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-tag-list-ref.returns"></a><h4>Returns</h4>
<p> the same <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> mini object.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-list-unref"></a><h3>gst_tag_list_unref ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_tag_list_unref (<em class="parameter"><code><a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> *taglist</code></em>);</pre>
<p>Unref a <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a>, and and free all its memory when the refcount reaches 0.</p>
<div class="refsect3">
<a name="gst-tag-list-unref.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>taglist</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-list-is-writable"></a><h3>gst_tag_list_is_writable()</h3>
<pre class="programlisting">#define gst_tag_list_is_writable(taglist) gst_mini_object_is_writable (GST_MINI_OBJECT_CAST (taglist))
</pre>
<p>Tests if you can safely modify <em class="parameter"><code>taglist</code></em>
. It is only safe to modify taglist
when there is only one owner of the taglist - ie, the refcount is 1.</p>
<div class="refsect3">
<a name="gst-tag-list-is-writable.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>taglist</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-list-make-writable"></a><h3>gst_tag_list_make_writable()</h3>
<pre class="programlisting">#define gst_tag_list_make_writable(taglist) GST_TAG_LIST (gst_mini_object_make_writable (GST_MINI_OBJECT_CAST (taglist)))
</pre>
<p>Returns a writable copy of <em class="parameter"><code>taglist</code></em>
.</p>
<p>If there is only one reference count on <em class="parameter"><code>taglist</code></em>
, the caller must be the
owner, and so this function will return the taglist object unchanged. If on
the other hand there is more than one reference on the object, a new taglist
object will be returned (which will be a copy of <em class="parameter"><code>taglist</code></em>
). The caller's
reference on <em class="parameter"><code>taglist</code></em>
will be removed, and instead the caller will own a
reference to the returned object.</p>
<p>In short, this function unrefs the taglist in the argument and refs the
taglist that it returns. Don't access the argument after calling this
function. See also: <a class="link" href="GstTagList.html#gst-tag-list-ref" title="gst_tag_list_ref ()"><code class="function">gst_tag_list_ref()</code></a>.</p>
<div class="refsect3">
<a name="gst-tag-list-make-writable.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>taglist</p></td>
<td class="parameter_description"><p> a <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-tag-list-make-writable.returns"></a><h4>Returns</h4>
<p> a writable taglist which may or may not be the
same as <em class="parameter"><code>taglist</code></em>
. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-list-insert"></a><h3>gst_tag_list_insert ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_tag_list_insert (<em class="parameter"><code><a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> *into</code></em>,
<em class="parameter"><code>const <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> *from</code></em>,
<em class="parameter"><code><a class="link" href="GstTagList.html#GstTagMergeMode" title="enum GstTagMergeMode"><span class="type">GstTagMergeMode</span></a> mode</code></em>);</pre>
<p>Inserts the tags of the <em class="parameter"><code>from</code></em>
list into the first list using the given mode.</p>
<div class="refsect3">
<a name="gst-tag-list-insert.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>into</p></td>
<td class="parameter_description"><p>list to merge into</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>from</p></td>
<td class="parameter_description"><p>list to merge from</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>mode</p></td>
<td class="parameter_description"><p>the mode to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-list-merge"></a><h3>gst_tag_list_merge ()</h3>
<pre class="programlisting"><a class="link" href="GstTagList.html" title="GstTagList"><span class="returnvalue">GstTagList</span></a> *
gst_tag_list_merge (<em class="parameter"><code>const <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> *list1</code></em>,
<em class="parameter"><code>const <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> *list2</code></em>,
<em class="parameter"><code><a class="link" href="GstTagList.html#GstTagMergeMode" title="enum GstTagMergeMode"><span class="type">GstTagMergeMode</span></a> mode</code></em>);</pre>
<p>Merges the two given lists into a new list. If one of the lists is <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>, a
copy of the other is returned. If both lists are <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>, <a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> is returned.</p>
<p>Free-function: gst_tag_list_unref</p>
<div class="refsect3">
<a name="gst-tag-list-merge.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>list1</p></td>
<td class="parameter_description"><p> first list to merge. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>list2</p></td>
<td class="parameter_description"><p> second list to merge. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>mode</p></td>
<td class="parameter_description"><p>the mode to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-tag-list-merge.returns"></a><h4>Returns</h4>
<p> the new list. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>][<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-list-get-tag-size"></a><h3>gst_tag_list_get_tag_size ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>
gst_tag_list_get_tag_size (<em class="parameter"><code>const <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> *list</code></em>,
<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *tag</code></em>);</pre>
<p>Checks how many value are stored in this tag list for the given tag.</p>
<div class="refsect3">
<a name="gst-tag-list-get-tag-size.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>list</p></td>
<td class="parameter_description"><p>a taglist</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>tag</p></td>
<td class="parameter_description"><p>the tag to query</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-tag-list-get-tag-size.returns"></a><h4>Returns</h4>
<p> The number of tags stored</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-list-n-tags"></a><h3>gst_tag_list_n_tags ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>
gst_tag_list_n_tags (<em class="parameter"><code>const <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> *list</code></em>);</pre>
<p>Get the number of tags in <em class="parameter"><code>list</code></em>
.</p>
<div class="refsect3">
<a name="gst-tag-list-n-tags.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>list</p></td>
<td class="parameter_description"><p>A <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-tag-list-n-tags.returns"></a><h4>Returns</h4>
<p> The number of tags in <em class="parameter"><code>list</code></em>
.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-list-nth-tag-name"></a><h3>gst_tag_list_nth_tag_name ()</h3>
<pre class="programlisting">const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
gst_tag_list_nth_tag_name (<em class="parameter"><code>const <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> *list</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#guint"><span class="type">guint</span></a> index</code></em>);</pre>
<p>Get the name of the tag in <em class="parameter"><code>list</code></em>
at <em class="parameter"><code>index</code></em>
.</p>
<div class="refsect3">
<a name="gst-tag-list-nth-tag-name.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>list</p></td>
<td class="parameter_description"><p>A <a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>index</p></td>
<td class="parameter_description"><p>the index</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-tag-list-nth-tag-name.returns"></a><h4>Returns</h4>
<p> The name of the tag at <em class="parameter"><code>index</code></em>
.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-list-add"></a><h3>gst_tag_list_add ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_tag_list_add (<em class="parameter"><code><a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> *list</code></em>,
<em class="parameter"><code><a class="link" href="GstTagList.html#GstTagMergeMode" title="enum GstTagMergeMode"><span class="type">GstTagMergeMode</span></a> mode</code></em>,
<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *tag</code></em>,
<em class="parameter"><code>...</code></em>);</pre>
<p>Sets the values for the given tags using the specified mode.</p>
<div class="refsect3">
<a name="gst-tag-list-add.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>list</p></td>
<td class="parameter_description"><p>list to set tags in</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>mode</p></td>
<td class="parameter_description"><p>the mode to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>tag</p></td>
<td class="parameter_description"><p>tag</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>...</p></td>
<td class="parameter_description"><p><a href="/usr/share/gtk-doc/html/glibglib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>-terminated list of values to set</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-list-add-value"></a><h3>gst_tag_list_add_value ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_tag_list_add_value (<em class="parameter"><code><a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> *list</code></em>,
<em class="parameter"><code><a class="link" href="GstTagList.html#GstTagMergeMode" title="enum GstTagMergeMode"><span class="type">GstTagMergeMode</span></a> mode</code></em>,
<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *tag</code></em>,
<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/gobjectgobject-Generic-values.html#GValue"><span class="type">GValue</span></a> *value</code></em>);</pre>
<p>Sets the GValue for a given tag using the specified mode.</p>
<div class="refsect3">
<a name="gst-tag-list-add-value.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>list</p></td>
<td class="parameter_description"><p>list to set tags in</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>mode</p></td>
<td class="parameter_description"><p>the mode to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>tag</p></td>
<td class="parameter_description"><p>tag</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>GValue for this tag</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-list-add-values"></a><h3>gst_tag_list_add_values ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_tag_list_add_values (<em class="parameter"><code><a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> *list</code></em>,
<em class="parameter"><code><a class="link" href="GstTagList.html#GstTagMergeMode" title="enum GstTagMergeMode"><span class="type">GstTagMergeMode</span></a> mode</code></em>,
<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *tag</code></em>,
<em class="parameter"><code>...</code></em>);</pre>
<p>Sets the GValues for the given tags using the specified mode.</p>
<div class="refsect3">
<a name="gst-tag-list-add-values.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>list</p></td>
<td class="parameter_description"><p>list to set tags in</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>mode</p></td>
<td class="parameter_description"><p>the mode to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>tag</p></td>
<td class="parameter_description"><p>tag</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>...</p></td>
<td class="parameter_description"><p>GValues to set</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gst-tag-list-add-valist"></a><h3>gst_tag_list_add_valist ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_tag_list_add_valist (<em class="parameter"><code><a class="link" href="GstTagList.html" title="GstTagList"><span class="type">GstTagList</span></a> *list</code></em>,
<em class="parameter"><code><a class="link" href="GstTagList.html#GstTagMergeMode" title="enum GstTagMergeMode"><span class="type">GstTagMergeMode</span></a> mode</code></em>,
<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *tag</code></em>,
<em class="parameter"><code><span class="type">va_list</span> var_args</code></em>);</pre>
<p>Sets the values for the given tags using the specified mode.</p>
<div class="refsect3">
<a name="gst-tag-list-add-valist.parameters"></a><h4>Parameters</h4>