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| <a href="#GstCaps.object-hierarchy" class="shortcut">Object Hierarchy</a></span> |
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| <td valign="top"> |
| <h2><span class="refentrytitle"><a name="GstCaps.top_of_page"></a>GstCaps</span></h2> |
| <p>GstCaps — Structure describing sets of media formats</p> |
| </td> |
| <td class="gallery_image" valign="top" align="right"></td> |
| </tr></table></div> |
| <div class="refsect1"> |
| <a name="GstCaps.functions"></a><h2>Functions</h2> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="functions_return"> |
| <col class="functions_name"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="define_keyword">#define</td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#GST-CAPS-REFCOUNT:CAPS" title="GST_CAPS_REFCOUNT()">GST_CAPS_REFCOUNT</a><span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="define_keyword">#define</td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#GST-CAPS-REFCOUNT-VALUE:CAPS" title="GST_CAPS_REFCOUNT_VALUE()">GST_CAPS_REFCOUNT_VALUE</a><span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="define_keyword">#define</td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#GST-CAPS-IS-SIMPLE:CAPS" title="GST_CAPS_IS_SIMPLE()">GST_CAPS_IS_SIMPLE</a><span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="define_keyword">#define</td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#GST-STATIC-CAPS" title="GST_STATIC_CAPS()">GST_STATIC_CAPS</a><span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="define_keyword">#define</td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#GST-CAPS-FLAGS:CAPS" title="GST_CAPS_FLAGS()">GST_CAPS_FLAGS</a><span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="define_keyword">#define</td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#GST-CAPS-FLAG-IS-SET:CAPS" title="GST_CAPS_FLAG_IS_SET()">GST_CAPS_FLAG_IS_SET</a><span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="define_keyword">#define</td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#GST-CAPS-FLAG-SET:CAPS" title="GST_CAPS_FLAG_SET()">GST_CAPS_FLAG_SET</a><span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="define_keyword">#define</td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#GST-CAPS-FLAG-UNSET:CAPS" title="GST_CAPS_FLAG_UNSET()">GST_CAPS_FLAG_UNSET</a><span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <span class="c_punctuation">(</span><a class="link" href="GstCaps.html#GstCapsForeachFunc" title="GstCapsForeachFunc ()">*GstCapsForeachFunc</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <span class="c_punctuation">(</span><a class="link" href="GstCaps.html#GstCapsMapFunc" title="GstCapsMapFunc ()">*GstCapsMapFunc</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <span class="c_punctuation">(</span><a class="link" href="GstCaps.html#GstCapsFilterMapFunc" title="GstCapsFilterMapFunc ()">*GstCapsFilterMapFunc</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-new-empty" title="gst_caps_new_empty ()">gst_caps_new_empty</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-new-empty-simple" title="gst_caps_new_empty_simple ()">gst_caps_new_empty_simple</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-new-any" title="gst_caps_new_any ()">gst_caps_new_any</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-new-simple" title="gst_caps_new_simple ()">gst_caps_new_simple</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-new-full" title="gst_caps_new_full ()">gst_caps_new_full</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-new-full-valist" title="gst_caps_new_full_valist ()">gst_caps_new_full_valist</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="define_keyword">#define</td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-is-writable" title="gst_caps_is_writable()">gst_caps_is_writable</a><span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-copy" title="gst_caps_copy ()">gst_caps_copy</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-copy-nth" title="gst_caps_copy_nth ()">gst_caps_copy_nth</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-static-caps-get" title="gst_static_caps_get ()">gst_static_caps_get</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="GstCaps.html#gst-static-caps-cleanup" title="gst_static_caps_cleanup ()">gst_static_caps_cleanup</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="GstCaps.html#gst-caps-append" title="gst_caps_append ()">gst_caps_append</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-merge" title="gst_caps_merge ()">gst_caps_merge</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="GstCaps.html#gst-caps-append-structure" title="gst_caps_append_structure ()">gst_caps_append_structure</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="GstCaps.html#gst-caps-append-structure-full" title="gst_caps_append_structure_full ()">gst_caps_append_structure_full</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="GstCaps.html#gst-caps-remove-structure" title="gst_caps_remove_structure ()">gst_caps_remove_structure</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstStructure.html" title="GstStructure"><span class="returnvalue">GstStructure</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-steal-structure" title="gst_caps_steal_structure ()">gst_caps_steal_structure</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-merge-structure" title="gst_caps_merge_structure ()">gst_caps_merge_structure</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-merge-structure-full" title="gst_caps_merge_structure_full ()">gst_caps_merge_structure_full</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-get-size" title="gst_caps_get_size ()">gst_caps_get_size</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstStructure.html" title="GstStructure"><span class="returnvalue">GstStructure</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-get-structure" title="gst_caps_get_structure ()">gst_caps_get_structure</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstCapsFeatures.html" title="GstCapsFeatures"><span class="returnvalue">GstCapsFeatures</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-get-features" title="gst_caps_get_features ()">gst_caps_get_features</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="GstCaps.html#gst-caps-set-features" title="gst_caps_set_features ()">gst_caps_set_features</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="GstCaps.html#gst-caps-set-value" title="gst_caps_set_value ()">gst_caps_set_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="GstCaps.html#gst-caps-set-simple" title="gst_caps_set_simple ()">gst_caps_set_simple</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="GstCaps.html#gst-caps-set-simple-valist" title="gst_caps_set_simple_valist ()">gst_caps_set_simple_valist</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-foreach" title="gst_caps_foreach ()">gst_caps_foreach</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-map-in-place" title="gst_caps_map_in_place ()">gst_caps_map_in_place</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="GstCaps.html#gst-caps-filter-and-map-in-place" title="gst_caps_filter_and_map_in_place ()">gst_caps_filter_and_map_in_place</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-is-any" title="gst_caps_is_any ()">gst_caps_is_any</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-is-empty" title="gst_caps_is_empty ()">gst_caps_is_empty</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-is-fixed" title="gst_caps_is_fixed ()">gst_caps_is_fixed</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-is-equal" title="gst_caps_is_equal ()">gst_caps_is_equal</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-is-equal-fixed" title="gst_caps_is_equal_fixed ()">gst_caps_is_equal_fixed</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-is-strictly-equal" title="gst_caps_is_strictly_equal ()">gst_caps_is_strictly_equal</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-is-always-compatible" title="gst_caps_is_always_compatible ()">gst_caps_is_always_compatible</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-is-subset" title="gst_caps_is_subset ()">gst_caps_is_subset</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-is-subset-structure" title="gst_caps_is_subset_structure ()">gst_caps_is_subset_structure</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-is-subset-structure-full" title="gst_caps_is_subset_structure_full ()">gst_caps_is_subset_structure_full</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-can-intersect" title="gst_caps_can_intersect ()">gst_caps_can_intersect</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-intersect" title="gst_caps_intersect ()">gst_caps_intersect</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-intersect-full" title="gst_caps_intersect_full ()">gst_caps_intersect_full</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-normalize" title="gst_caps_normalize ()">gst_caps_normalize</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-simplify" title="gst_caps_simplify ()">gst_caps_simplify</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-replace" title="gst_caps_replace ()">gst_caps_replace</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-take" title="gst_caps_take ()">gst_caps_take</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-to-string" title="gst_caps_to_string ()">gst_caps_to_string</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-from-string" title="gst_caps_from_string ()">gst_caps_from_string</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-subtract" title="gst_caps_subtract ()">gst_caps_subtract</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="define_keyword">#define</td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-make-writable" title="gst_caps_make_writable()">gst_caps_make_writable</a><span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-truncate" title="gst_caps_truncate ()">gst_caps_truncate</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-fixate" title="gst_caps_fixate ()">gst_caps_fixate</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="GstCaps.html#gst-caps-ref" title="gst_caps_ref ()">gst_caps_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="GstCaps.html#gst-caps-unref" title="gst_caps_unref ()">gst_caps_unref</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect1"> |
| <a name="GstCaps.other"></a><h2>Types and Values</h2> |
| <div class="informaltable"><table 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="GstCaps.html#GstCaps-struct" title="struct GstCaps">GstCaps</a></td> |
| </tr> |
| <tr> |
| <td class="datatype_keyword">struct</td> |
| <td class="function_name"><a class="link" href="GstCaps.html#GstStaticCaps" title="struct GstStaticCaps">GstStaticCaps</a></td> |
| </tr> |
| <tr> |
| <td class="datatype_keyword">enum</td> |
| <td class="function_name"><a class="link" href="GstCaps.html#GstCapsIntersectMode" title="enum GstCapsIntersectMode">GstCapsIntersectMode</a></td> |
| </tr> |
| <tr> |
| <td class="datatype_keyword">enum</td> |
| <td class="function_name"><a class="link" href="GstCaps.html#GstCapsFlags" title="enum GstCapsFlags">GstCapsFlags</a></td> |
| </tr> |
| <tr> |
| <td class="define_keyword">#define</td> |
| <td class="function_name"><a class="link" href="GstCaps.html#GST-CAPS-ANY:CAPS" title="GST_CAPS_ANY">GST_CAPS_ANY</a></td> |
| </tr> |
| <tr> |
| <td class="define_keyword">#define</td> |
| <td class="function_name"><a class="link" href="GstCaps.html#GST-CAPS-NONE:CAPS" title="GST_CAPS_NONE">GST_CAPS_NONE</a></td> |
| </tr> |
| <tr> |
| <td class="define_keyword">#define</td> |
| <td class="function_name"><a class="link" href="GstCaps.html#GST-STATIC-CAPS-ANY:CAPS" title="GST_STATIC_CAPS_ANY">GST_STATIC_CAPS_ANY</a></td> |
| </tr> |
| <tr> |
| <td class="define_keyword">#define</td> |
| <td class="function_name"><a class="link" href="GstCaps.html#GST-STATIC-CAPS-NONE:CAPS" title="GST_STATIC_CAPS_NONE">GST_STATIC_CAPS_NONE</a></td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect1"> |
| <a name="GstCaps.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> GstCaps |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="GstCaps.includes"></a><h2>Includes</h2> |
| <pre class="synopsis">#include <gst/gst.h> |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="GstCaps.description"></a><h2>Description</h2> |
| <p>Caps (capabilities) are lightweight refcounted objects describing media types. |
| They are composed of an array of <a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a>.</p> |
| <p>Caps are exposed on <a class="link" href="GstPadTemplate.html" title="GstPadTemplate"><span class="type">GstPadTemplate</span></a> to describe all possible types a |
| given pad can handle. They are also stored in the <a class="link" href="GstRegistry.html" title="GstRegistry"><span class="type">GstRegistry</span></a> along with |
| a description of the <a class="link" href="GstElement.html" title="GstElement"><span class="type">GstElement</span></a>.</p> |
| <p>Caps are exposed on the element pads using the <a class="link" href="GstPad.html#gst-pad-query-caps" title="gst_pad_query_caps ()"><code class="function">gst_pad_query_caps()</code></a> pad |
| function. This function describes the possible types that the pad can |
| handle or produce at runtime.</p> |
| <p>A <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> can be constructed with the following code fragment:</p> |
| <div class="informalexample"> |
| <table class="listing_frame" border="0" cellpadding="0" cellspacing="0"> |
| <tbody> |
| <tr> |
| <td class="listing_lines" align="right"><pre>1 |
| 2 |
| 3 |
| 4 |
| 5 |
| 6 |
| 7</pre></td> |
| <td class="listing_code"><pre class="programlisting">GstCaps <span class="gtkdoc opt">*</span>caps <span class="gtkdoc opt">=</span> <span class="function"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstCaps.html#gst-caps-new-simple">gst_caps_new_simple</a></span> <span class="gtkdoc opt">(</span><span class="string">"video/x-raw"</span><span class="gtkdoc opt">,</span> |
| <span class="string">"format"</span><span class="gtkdoc opt">,</span> G_TYPE_STRING<span class="gtkdoc opt">,</span> <span class="string">"I420"</span><span class="gtkdoc opt">,</span> |
| <span class="string">"framerate"</span><span class="gtkdoc opt">,</span> GST_TYPE_FRACTION<span class="gtkdoc opt">,</span> <span class="number">25</span><span class="gtkdoc opt">,</span> <span class="number">1</span><span class="gtkdoc opt">,</span> |
| <span class="string">"pixel-aspect-ratio"</span><span class="gtkdoc opt">,</span> GST_TYPE_FRACTION<span class="gtkdoc opt">,</span> <span class="number">1</span><span class="gtkdoc opt">,</span> <span class="number">1</span><span class="gtkdoc opt">,</span> |
| <span class="string">"width"</span><span class="gtkdoc opt">,</span> G_TYPE_INT<span class="gtkdoc opt">,</span> <span class="number">320</span><span class="gtkdoc opt">,</span> |
| <span class="string">"height"</span><span class="gtkdoc opt">,</span> G_TYPE_INT<span class="gtkdoc opt">,</span> <span class="number">240</span><span class="gtkdoc opt">,</span> |
| NULL<span class="gtkdoc opt">);</span></pre></td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| |
| <p></p> |
| <p>A <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> is fixed when it has no properties with ranges or lists. Use |
| <a class="link" href="GstCaps.html#gst-caps-is-fixed" title="gst_caps_is_fixed ()"><code class="function">gst_caps_is_fixed()</code></a> to test for fixed caps. Fixed caps can be used in a |
| caps event to notify downstream elements of the current media type.</p> |
| <p>Various methods exist to work with the media types such as subtracting |
| or intersecting.</p> |
| <p>Be aware that the current <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> / <a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> serialization into string |
| has limited support for nested <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> / <a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> fields. It can only |
| support one level of nesting. Using more levels will lead to unexpected |
| behavior when using serialization features, such as <a class="link" href="GstCaps.html#gst-caps-to-string" title="gst_caps_to_string ()"><code class="function">gst_caps_to_string()</code></a> or |
| <a class="link" href="gstreamer-GstValue.html#gst-value-serialize" title="gst_value_serialize ()"><code class="function">gst_value_serialize()</code></a> and their counterparts.</p> |
| </div> |
| <div class="refsect1"> |
| <a name="GstCaps.functions_details"></a><h2>Functions</h2> |
| <div class="refsect2"> |
| <a name="GST-CAPS-REFCOUNT:CAPS"></a><h3>GST_CAPS_REFCOUNT()</h3> |
| <pre class="programlisting">#define GST_CAPS_REFCOUNT(caps) GST_MINI_OBJECT_REFCOUNT(caps) |
| </pre> |
| <p>Get access to the reference count field of the caps</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.2.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-CAPS-REFCOUNT-VALUE:CAPS"></a><h3>GST_CAPS_REFCOUNT_VALUE()</h3> |
| <pre class="programlisting">#define GST_CAPS_REFCOUNT_VALUE(caps) GST_MINI_OBJECT_REFCOUNT_VALUE(caps) |
| </pre> |
| <p>Get the reference count value of the caps.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.3.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-CAPS-IS-SIMPLE:CAPS"></a><h3>GST_CAPS_IS_SIMPLE()</h3> |
| <pre class="programlisting">#define GST_CAPS_IS_SIMPLE(caps) (gst_caps_get_size(caps) == 1) |
| </pre> |
| <p>Convenience macro that checks if the number of structures in the given caps |
| is exactly one.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.4.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> instance to check</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-STATIC-CAPS"></a><h3>GST_STATIC_CAPS()</h3> |
| <pre class="programlisting">#define GST_STATIC_CAPS(string)</pre> |
| <p>Creates a new <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> static caps from an input string. |
| This can be used in pad templates.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.5.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>string</p></td> |
| <td class="parameter_description"><p>the string describing the caps</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-CAPS-FLAGS:CAPS"></a><h3>GST_CAPS_FLAGS()</h3> |
| <pre class="programlisting">#define GST_CAPS_FLAGS(caps) GST_MINI_OBJECT_FLAGS(caps) |
| </pre> |
| <p>A flags word containing <a class="link" href="GstCaps.html#GstCapsFlags" title="enum GstCapsFlags"><span class="type">GstCapsFlags</span></a> flags set on this caps.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.6.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>.</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-CAPS-FLAG-IS-SET:CAPS"></a><h3>GST_CAPS_FLAG_IS_SET()</h3> |
| <pre class="programlisting">#define GST_CAPS_FLAG_IS_SET(caps,flag) GST_MINI_OBJECT_FLAG_IS_SET (caps, flag) |
| </pre> |
| <p>Gives the status of a specific flag on a caps.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.7.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>.</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>flag</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstCaps.html#GstCapsFlags" title="enum GstCapsFlags"><span class="type">GstCapsFlags</span></a> to check.</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-CAPS-FLAG-SET:CAPS"></a><h3>GST_CAPS_FLAG_SET()</h3> |
| <pre class="programlisting">#define GST_CAPS_FLAG_SET(caps,flag) GST_MINI_OBJECT_FLAG_SET (caps, flag) |
| </pre> |
| <p>Sets a caps flag on a caps.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.8.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>.</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>flag</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstCaps.html#GstCapsFlags" title="enum GstCapsFlags"><span class="type">GstCapsFlags</span></a> to set.</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-CAPS-FLAG-UNSET:CAPS"></a><h3>GST_CAPS_FLAG_UNSET()</h3> |
| <pre class="programlisting">#define GST_CAPS_FLAG_UNSET(caps,flag) GST_MINI_OBJECT_FLAG_UNSET (caps, flag) |
| </pre> |
| <p>Clears a caps flag.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.9.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>.</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>flag</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstCaps.html#GstCapsFlags" title="enum GstCapsFlags"><span class="type">GstCapsFlags</span></a> to clear.</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstCapsForeachFunc"></a><h3>GstCapsForeachFunc ()</h3> |
| <pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| <span class="c_punctuation">(</span>*GstCapsForeachFunc<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="GstCapsFeatures.html" title="GstCapsFeatures"><span class="type">GstCapsFeatures</span></a> *features</code></em>, |
| <em class="parameter"><code><a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> *structure</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-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="GstCaps.html#gst-caps-foreach" title="gst_caps_foreach ()"><code class="function">gst_caps_foreach()</code></a>. The function may |
| not modify <em class="parameter"><code>features</code></em> |
| or <em class="parameter"><code>structure</code></em> |
| .</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.10.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>features</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstCapsFeatures.html" title="GstCapsFeatures"><span class="type">GstCapsFeatures</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>structure</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a></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 class="refsect3"> |
| <a name="id-1.3.11.8.10.6"></a><h4>Returns</h4> |
| <p> <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the foreach operation should continue, <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> if |
| the foreach operation should stop with <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a>.</p> |
| </div> |
| <p class="since">Since: 1.6</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstCapsMapFunc"></a><h3>GstCapsMapFunc ()</h3> |
| <pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| <span class="c_punctuation">(</span>*GstCapsMapFunc<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="GstCapsFeatures.html" title="GstCapsFeatures"><span class="type">GstCapsFeatures</span></a> *features</code></em>, |
| <em class="parameter"><code><a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> *structure</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-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="GstCaps.html#gst-caps-map-in-place" title="gst_caps_map_in_place ()"><code class="function">gst_caps_map_in_place()</code></a>. The function |
| may modify <em class="parameter"><code>features</code></em> |
| and <em class="parameter"><code>structure</code></em> |
| .</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.11.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>features</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstCapsFeatures.html" title="GstCapsFeatures"><span class="type">GstCapsFeatures</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>structure</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a></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 class="refsect3"> |
| <a name="id-1.3.11.8.11.6"></a><h4>Returns</h4> |
| <p> <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the map operation should continue, <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> if |
| the map operation should stop with <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a>.</p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstCapsFilterMapFunc"></a><h3>GstCapsFilterMapFunc ()</h3> |
| <pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| <span class="c_punctuation">(</span>*GstCapsFilterMapFunc<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="GstCapsFeatures.html" title="GstCapsFeatures"><span class="type">GstCapsFeatures</span></a> *features</code></em>, |
| <em class="parameter"><code><a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> *structure</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-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="GstCaps.html#gst-caps-filter-and-map-in-place" title="gst_caps_filter_and_map_in_place ()"><code class="function">gst_caps_filter_and_map_in_place()</code></a>. |
| The function may modify <em class="parameter"><code>features</code></em> |
| and <em class="parameter"><code>structure</code></em> |
| , and both will be |
| removed from the caps if <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> is returned.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.12.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>features</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstCapsFeatures.html" title="GstCapsFeatures"><span class="type">GstCapsFeatures</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>structure</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a></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 class="refsect3"> |
| <a name="id-1.3.11.8.12.6"></a><h4>Returns</h4> |
| <p> <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the features and structure should be preserved, |
| <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> if it should be removed.</p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-new-empty"></a><h3>gst_caps_new_empty ()</h3> |
| <pre class="programlisting"><a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| gst_caps_new_empty (<em class="parameter"><code><span class="type">void</span></code></em>);</pre> |
| <p>Creates a new <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> that is empty. That is, the returned |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> contains no media formats. |
| The <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> is guaranteed to be writable. |
| Caller is responsible for unreffing the returned caps.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.13.5"></a><h4>Returns</h4> |
| <p> the new <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>. </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-caps-new-empty-simple"></a><h3>gst_caps_new_empty_simple ()</h3> |
| <pre class="programlisting"><a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| gst_caps_new_empty_simple (<em class="parameter"><code>const <span class="type">char</span> *media_type</code></em>);</pre> |
| <p>Creates a new <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> that contains one <a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> with name |
| <em class="parameter"><code>media_type</code></em> |
| . |
| Caller is responsible for unreffing the returned caps.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.14.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>media_type</p></td> |
| <td class="parameter_description"><p>the media type of the structure</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.14.6"></a><h4>Returns</h4> |
| <p> the new <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>. </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-caps-new-any"></a><h3>gst_caps_new_any ()</h3> |
| <pre class="programlisting"><a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| gst_caps_new_any (<em class="parameter"><code><span class="type">void</span></code></em>);</pre> |
| <p>Creates a new <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> that indicates that it is compatible with |
| any media format.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.15.5"></a><h4>Returns</h4> |
| <p> the new <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>. </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-caps-new-simple"></a><h3>gst_caps_new_simple ()</h3> |
| <pre class="programlisting"><a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| gst_caps_new_simple (<em class="parameter"><code>const <span class="type">char</span> *media_type</code></em>, |
| <em class="parameter"><code>const <span class="type">char</span> *fieldname</code></em>, |
| <em class="parameter"><code>...</code></em>);</pre> |
| <p>Creates a new <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> that contains one <a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a>. The |
| structure is defined by the arguments, which have the same format |
| as <a class="link" href="GstStructure.html#gst-structure-new" title="gst_structure_new ()"><code class="function">gst_structure_new()</code></a>. |
| Caller is responsible for unreffing the returned caps.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.16.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>media_type</p></td> |
| <td class="parameter_description"><p>the media type of the structure</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>fieldname</p></td> |
| <td class="parameter_description"><p>first field to set</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>...</p></td> |
| <td class="parameter_description"><p>additional arguments</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.16.6"></a><h4>Returns</h4> |
| <p> the new <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>. </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-caps-new-full"></a><h3>gst_caps_new_full ()</h3> |
| <pre class="programlisting"><a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| gst_caps_new_full (<em class="parameter"><code><a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> *struct1</code></em>, |
| <em class="parameter"><code>...</code></em>);</pre> |
| <p>Creates a new <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> and adds all the structures listed as |
| arguments. The list must be <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>-terminated. The structures |
| are not copied; the returned <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> owns the structures.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.17.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>struct1</p></td> |
| <td class="parameter_description"><p>the first structure to add</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>...</p></td> |
| <td class="parameter_description"><p>additional structures to add</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.17.6"></a><h4>Returns</h4> |
| <p> the new <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>. </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-caps-new-full-valist"></a><h3>gst_caps_new_full_valist ()</h3> |
| <pre class="programlisting"><a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| gst_caps_new_full_valist (<em class="parameter"><code><a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> *structure</code></em>, |
| <em class="parameter"><code><span class="type">va_list</span> var_args</code></em>);</pre> |
| <p>Creates a new <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> and adds all the structures listed as |
| arguments. The list must be <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>-terminated. The structures |
| are not copied; the returned <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> owns the structures.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.18.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>structure</p></td> |
| <td class="parameter_description"><p>the first structure to add</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>var_args</p></td> |
| <td class="parameter_description"><p>additional structures to add</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.18.6"></a><h4>Returns</h4> |
| <p> the new <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>. </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-caps-is-writable"></a><h3>gst_caps_is_writable()</h3> |
| <pre class="programlisting">#define gst_caps_is_writable(caps) gst_mini_object_is_writable (GST_MINI_OBJECT_CAST (caps)) |
| </pre> |
| <p>Tests if you can safely modify <em class="parameter"><code>caps</code></em> |
| . It is only safe to modify caps when |
| there is only one owner of the caps - ie, the object is writable.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.19.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-copy"></a><h3>gst_caps_copy ()</h3> |
| <pre class="programlisting"><a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| gst_caps_copy (<em class="parameter"><code>const <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>);</pre> |
| <p>Creates a new <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> as a copy of the old <em class="parameter"><code>caps</code></em> |
| . The new caps will have a |
| refcount of 1, owned by the caller. The structures are copied as well.</p> |
| <p>Note that this function is the semantic equivalent of a <a class="link" href="GstCaps.html#gst-caps-ref" title="gst_caps_ref ()"><code class="function">gst_caps_ref()</code></a> |
| followed by a <a class="link" href="GstCaps.html#gst-caps-make-writable" title="gst_caps_make_writable()"><code class="function">gst_caps_make_writable()</code></a>. If you only want to hold on to a |
| reference to the data, you should use <a class="link" href="GstCaps.html#gst-caps-ref" title="gst_caps_ref ()"><code class="function">gst_caps_ref()</code></a>.</p> |
| <p>When you are finished with the caps, call <a class="link" href="GstCaps.html#gst-caps-unref" title="gst_caps_unref ()"><code class="function">gst_caps_unref()</code></a> on it.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.20.7"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>.</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.20.8"></a><h4>Returns</h4> |
| <p> the new <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a></p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-copy-nth"></a><h3>gst_caps_copy_nth ()</h3> |
| <pre class="programlisting"><a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| gst_caps_copy_nth (<em class="parameter"><code>const <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> nth</code></em>);</pre> |
| <p>Creates a new <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> and appends a copy of the nth structure |
| contained in <em class="parameter"><code>caps</code></em> |
| .</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.21.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to copy</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>nth</p></td> |
| <td class="parameter_description"><p>the nth structure to copy</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.21.6"></a><h4>Returns</h4> |
| <p> the new <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>. </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-static-caps-get"></a><h3>gst_static_caps_get ()</h3> |
| <pre class="programlisting"><a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| gst_static_caps_get (<em class="parameter"><code><a class="link" href="GstCaps.html#GstStaticCaps" title="struct GstStaticCaps"><span class="type">GstStaticCaps</span></a> *static_caps</code></em>);</pre> |
| <p>Converts a <a class="link" href="GstCaps.html#GstStaticCaps" title="struct GstStaticCaps"><span class="type">GstStaticCaps</span></a> to a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.22.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>static_caps</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstCaps.html#GstStaticCaps" title="struct GstStaticCaps"><span class="type">GstStaticCaps</span></a> to convert</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.22.6"></a><h4>Returns</h4> |
| <p> a pointer to the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>. Unref after usage. |
| Since the core holds an additional ref to the returned caps, |
| use <a class="link" href="GstCaps.html#gst-caps-make-writable" title="gst_caps_make_writable()"><code class="function">gst_caps_make_writable()</code></a> on the returned caps to modify it. </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-static-caps-cleanup"></a><h3>gst_static_caps_cleanup ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> |
| gst_static_caps_cleanup (<em class="parameter"><code><a class="link" href="GstCaps.html#GstStaticCaps" title="struct GstStaticCaps"><span class="type">GstStaticCaps</span></a> *static_caps</code></em>);</pre> |
| <p>Clean up the cached caps contained in <em class="parameter"><code>static_caps</code></em> |
| .</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.23.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>static_caps</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstCaps.html#GstStaticCaps" title="struct GstStaticCaps"><span class="type">GstStaticCaps</span></a> to clean</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-append"></a><h3>gst_caps_append ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> |
| gst_caps_append (<em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps1</code></em>, |
| <em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps2</code></em>);</pre> |
| <p>Appends the structures contained in <em class="parameter"><code>caps2</code></em> |
| to <em class="parameter"><code>caps1</code></em> |
| . The structures in |
| <em class="parameter"><code>caps2</code></em> |
| are not copied -- they are transferred to <em class="parameter"><code>caps1</code></em> |
| , and then <em class="parameter"><code>caps2</code></em> |
| is |
| freed. If either caps is ANY, the resulting caps will be ANY.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.24.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps1</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> that will be appended to</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>caps2</p></td> |
| <td class="parameter_description"><p> the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to append. </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> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-merge"></a><h3>gst_caps_merge ()</h3> |
| <pre class="programlisting"><a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| gst_caps_merge (<em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps1</code></em>, |
| <em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps2</code></em>);</pre> |
| <p>Appends the structures contained in <em class="parameter"><code>caps2</code></em> |
| to <em class="parameter"><code>caps1</code></em> |
| if they are not yet |
| expressed by <em class="parameter"><code>caps1</code></em> |
| . The structures in <em class="parameter"><code>caps2</code></em> |
| are not copied -- they are |
| transferred to a writable copy of <em class="parameter"><code>caps1</code></em> |
| , and then <em class="parameter"><code>caps2</code></em> |
| is freed. |
| If either caps is ANY, the resulting caps will be ANY.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.25.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps1</p></td> |
| <td class="parameter_description"><p> the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> that will take the new entries. </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> |
| <tr> |
| <td class="parameter_name"><p>caps2</p></td> |
| <td class="parameter_description"><p> the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to merge in. </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="id-1.3.11.8.25.6"></a><h4>Returns</h4> |
| <p> the merged caps. </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-caps-append-structure"></a><h3>gst_caps_append_structure ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> |
| gst_caps_append_structure (<em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>, |
| <em class="parameter"><code><a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> *structure</code></em>);</pre> |
| <p>Appends <em class="parameter"><code>structure</code></em> |
| to <em class="parameter"><code>caps</code></em> |
| . The structure is not copied; <em class="parameter"><code>caps</code></em> |
| |
| becomes the owner of <em class="parameter"><code>structure</code></em> |
| .</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.26.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> that will be appended to</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>structure</p></td> |
| <td class="parameter_description"><p> the <a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> to append. </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> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-append-structure-full"></a><h3>gst_caps_append_structure_full ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> |
| gst_caps_append_structure_full (<em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>, |
| <em class="parameter"><code><a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> *structure</code></em>, |
| <em class="parameter"><code><a class="link" href="GstCapsFeatures.html" title="GstCapsFeatures"><span class="type">GstCapsFeatures</span></a> *features</code></em>);</pre> |
| <p>Appends <em class="parameter"><code>structure</code></em> |
| with <em class="parameter"><code>features</code></em> |
| to <em class="parameter"><code>caps</code></em> |
| . The structure is not copied; <em class="parameter"><code>caps</code></em> |
| |
| becomes the owner of <em class="parameter"><code>structure</code></em> |
| .</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.27.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> that will be appended to</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>structure</p></td> |
| <td class="parameter_description"><p> the <a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> to append. </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> |
| <tr> |
| <td class="parameter_name"><p>features</p></td> |
| <td class="parameter_description"><p> the <a class="link" href="GstCapsFeatures.html" title="GstCapsFeatures"><span class="type">GstCapsFeatures</span></a> to append. </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>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <p class="since">Since: 1.2</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-remove-structure"></a><h3>gst_caps_remove_structure ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> |
| gst_caps_remove_structure (<em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> idx</code></em>);</pre> |
| <p>removes the structure with the given index from the list of structures |
| contained in <em class="parameter"><code>caps</code></em> |
| .</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.28.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to remove from</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>idx</p></td> |
| <td class="parameter_description"><p>Index of the structure to remove</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-steal-structure"></a><h3>gst_caps_steal_structure ()</h3> |
| <pre class="programlisting"><a class="link" href="GstStructure.html" title="GstStructure"><span class="returnvalue">GstStructure</span></a> * |
| gst_caps_steal_structure (<em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> index</code></em>);</pre> |
| <p>Retrieves the structure with the given index from the list of structures |
| contained in <em class="parameter"><code>caps</code></em> |
| . The caller becomes the owner of the returned structure.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.29.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to retrieve from</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>index</p></td> |
| <td class="parameter_description"><p>Index of the structure to retrieve</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.29.6"></a><h4>Returns</h4> |
| <p> a pointer to the <a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> corresponding |
| to <em class="parameter"><code>index</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-caps-merge-structure"></a><h3>gst_caps_merge_structure ()</h3> |
| <pre class="programlisting"><a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| gst_caps_merge_structure (<em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>, |
| <em class="parameter"><code><a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> *structure</code></em>);</pre> |
| <p>Appends <em class="parameter"><code>structure</code></em> |
| to <em class="parameter"><code>caps</code></em> |
| if its not already expressed by <em class="parameter"><code>caps</code></em> |
| .</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.30.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p> the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to merge into. </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> |
| <tr> |
| <td class="parameter_name"><p>structure</p></td> |
| <td class="parameter_description"><p> the <a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> to merge. </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="id-1.3.11.8.30.6"></a><h4>Returns</h4> |
| <p> the merged caps. </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-caps-merge-structure-full"></a><h3>gst_caps_merge_structure_full ()</h3> |
| <pre class="programlisting"><a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| gst_caps_merge_structure_full (<em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>, |
| <em class="parameter"><code><a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> *structure</code></em>, |
| <em class="parameter"><code><a class="link" href="GstCapsFeatures.html" title="GstCapsFeatures"><span class="type">GstCapsFeatures</span></a> *features</code></em>);</pre> |
| <p>Appends <em class="parameter"><code>structure</code></em> |
| with <em class="parameter"><code>features</code></em> |
| to <em class="parameter"><code>caps</code></em> |
| if its not already expressed by <em class="parameter"><code>caps</code></em> |
| .</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.31.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p> the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to merge into. </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> |
| <tr> |
| <td class="parameter_name"><p>structure</p></td> |
| <td class="parameter_description"><p> the <a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> to merge. </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> |
| <tr> |
| <td class="parameter_name"><p>features</p></td> |
| <td class="parameter_description"><p> the <a class="link" href="GstCapsFeatures.html" title="GstCapsFeatures"><span class="type">GstCapsFeatures</span></a> to merge. </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>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.31.6"></a><h4>Returns</h4> |
| <p> the merged caps. </p> |
| <p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p> |
| </div> |
| <p class="since">Since: 1.2</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-get-size"></a><h3>gst_caps_get_size ()</h3> |
| <pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> |
| gst_caps_get_size (<em class="parameter"><code>const <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>);</pre> |
| <p>Gets the number of structures contained in <em class="parameter"><code>caps</code></em> |
| .</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.32.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.32.6"></a><h4>Returns</h4> |
| <p> the number of structures that <em class="parameter"><code>caps</code></em> |
| contains</p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-get-structure"></a><h3>gst_caps_get_structure ()</h3> |
| <pre class="programlisting"><a class="link" href="GstStructure.html" title="GstStructure"><span class="returnvalue">GstStructure</span></a> * |
| gst_caps_get_structure (<em class="parameter"><code>const <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> index</code></em>);</pre> |
| <p>Finds the structure in <em class="parameter"><code>caps</code></em> |
| that has the index <em class="parameter"><code>index</code></em> |
| , and |
| returns it.</p> |
| <p>WARNING: This function takes a const GstCaps *, but returns a |
| non-const GstStructure *. This is for programming convenience -- |
| the caller should be aware that structures inside a constant |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> should not be modified. However, if you know the caps |
| are writable, either because you have just copied them or made |
| them writable with <a class="link" href="GstCaps.html#gst-caps-make-writable" title="gst_caps_make_writable()"><code class="function">gst_caps_make_writable()</code></a>, you may modify the |
| structure returned in the usual way, e.g. with functions like |
| <a class="link" href="GstStructure.html#gst-structure-set" title="gst_structure_set ()"><code class="function">gst_structure_set()</code></a>.</p> |
| <p>You do not need to free or unref the structure returned, it |
| belongs to the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.33.7"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</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 of the structure</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.33.8"></a><h4>Returns</h4> |
| <p> a pointer to the <a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> corresponding |
| to <em class="parameter"><code>index</code></em> |
| . </p> |
| <p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-get-features"></a><h3>gst_caps_get_features ()</h3> |
| <pre class="programlisting"><a class="link" href="GstCapsFeatures.html" title="GstCapsFeatures"><span class="returnvalue">GstCapsFeatures</span></a> * |
| gst_caps_get_features (<em class="parameter"><code>const <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> index</code></em>);</pre> |
| <p>Finds the features in <em class="parameter"><code>caps</code></em> |
| that has the index <em class="parameter"><code>index</code></em> |
| , and |
| returns it.</p> |
| <p>WARNING: This function takes a const GstCaps *, but returns a |
| non-const GstCapsFeatures *. This is for programming convenience -- |
| the caller should be aware that structures inside a constant |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> should not be modified. However, if you know the caps |
| are writable, either because you have just copied them or made |
| them writable with <a class="link" href="GstCaps.html#gst-caps-make-writable" title="gst_caps_make_writable()"><code class="function">gst_caps_make_writable()</code></a>, you may modify the |
| features returned in the usual way, e.g. with functions like |
| <a class="link" href="GstCapsFeatures.html#gst-caps-features-add" title="gst_caps_features_add ()"><code class="function">gst_caps_features_add()</code></a>.</p> |
| <p>You do not need to free or unref the structure returned, it |
| belongs to the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.34.7"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</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 of the structure</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.34.8"></a><h4>Returns</h4> |
| <p> a pointer to the <a class="link" href="GstCapsFeatures.html" title="GstCapsFeatures"><span class="type">GstCapsFeatures</span></a> corresponding |
| to <em class="parameter"><code>index</code></em> |
| . </p> |
| <p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p> |
| </div> |
| <p class="since">Since: 1.2</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-set-features"></a><h3>gst_caps_set_features ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> |
| gst_caps_set_features (<em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> index</code></em>, |
| <em class="parameter"><code><a class="link" href="GstCapsFeatures.html" title="GstCapsFeatures"><span class="type">GstCapsFeatures</span></a> *features</code></em>);</pre> |
| <p>Sets the <a class="link" href="GstCapsFeatures.html" title="GstCapsFeatures"><span class="type">GstCapsFeatures</span></a> <em class="parameter"><code>features</code></em> |
| for the structure at <em class="parameter"><code>index</code></em> |
| .</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.35.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</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 of the structure</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>features</p></td> |
| <td class="parameter_description"><p> the <a class="link" href="GstCapsFeatures.html" title="GstCapsFeatures"><span class="type">GstCapsFeatures</span></a> to set. </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="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <p class="since">Since: 1.2</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-set-value"></a><h3>gst_caps_set_value ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> |
| gst_caps_set_value (<em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>, |
| <em class="parameter"><code>const <span class="type">char</span> *field</code></em>, |
| <em class="parameter"><code>const <a href="https://developer.gnome.org/gobject/unstable/gobject-Generic-values.html#GValue"><span class="type">GValue</span></a> *value</code></em>);</pre> |
| <p>Sets the given <em class="parameter"><code>field</code></em> |
| on all structures of <em class="parameter"><code>caps</code></em> |
| to the given <em class="parameter"><code>value</code></em> |
| . |
| This is a convenience function for calling <a class="link" href="GstStructure.html#gst-structure-set-value" title="gst_structure_set_value ()"><code class="function">gst_structure_set_value()</code></a> on |
| all structures of <em class="parameter"><code>caps</code></em> |
| .</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.36.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>a writable caps</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>field</p></td> |
| <td class="parameter_description"><p>name of the field to set</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>value</p></td> |
| <td class="parameter_description"><p>value to set the field to</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-set-simple"></a><h3>gst_caps_set_simple ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> |
| gst_caps_set_simple (<em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>, |
| <em class="parameter"><code>const <span class="type">char</span> *field</code></em>, |
| <em class="parameter"><code>...</code></em>);</pre> |
| <p>Sets fields in a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>. The arguments must be passed in the same |
| manner as <a class="link" href="GstStructure.html#gst-structure-set" title="gst_structure_set ()"><code class="function">gst_structure_set()</code></a>, and be <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>-terminated.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.37.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to set</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>field</p></td> |
| <td class="parameter_description"><p>first field to set</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>...</p></td> |
| <td class="parameter_description"><p>additional parameters</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-set-simple-valist"></a><h3>gst_caps_set_simple_valist ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> |
| gst_caps_set_simple_valist (<em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>, |
| <em class="parameter"><code>const <span class="type">char</span> *field</code></em>, |
| <em class="parameter"><code><span class="type">va_list</span> varargs</code></em>);</pre> |
| <p>Sets fields in a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>. The arguments must be passed in the same |
| manner as <a class="link" href="GstStructure.html#gst-structure-set" title="gst_structure_set ()"><code class="function">gst_structure_set()</code></a>, and be <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>-terminated.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.38.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to set</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>field</p></td> |
| <td class="parameter_description"><p>first field to set</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>varargs</p></td> |
| <td class="parameter_description"><p>additional parameters</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-foreach"></a><h3>gst_caps_foreach ()</h3> |
| <pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| gst_caps_foreach (<em class="parameter"><code>const <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>, |
| <em class="parameter"><code><a class="link" href="GstCaps.html#GstCapsForeachFunc" title="GstCapsForeachFunc ()"><span class="type">GstCapsForeachFunc</span></a> func</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre> |
| <p>Calls the provided function once for each structure and caps feature in the |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>. The function must not modify the fields. |
| Also see <a class="link" href="GstCaps.html#gst-caps-map-in-place" title="gst_caps_map_in_place ()"><code class="function">gst_caps_map_in_place()</code></a> and <a class="link" href="GstCaps.html#gst-caps-filter-and-map-in-place" title="gst_caps_filter_and_map_in_place ()"><code class="function">gst_caps_filter_and_map_in_place()</code></a>.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.39.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>func</p></td> |
| <td class="parameter_description"><p> a function to call for each field. </p></td> |
| <td class="parameter_annotations"><span class="annotation">[<acronym title="The callback is valid only during the call to the method."><span class="acronym">scope call</span></acronym>]</span></td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>user_data</p></td> |
| <td class="parameter_description"><p> private data. </p></td> |
| <td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym>]</span></td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.39.6"></a><h4>Returns</h4> |
| <p> <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the supplied function returns <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> for each call, |
| <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwise.</p> |
| </div> |
| <p class="since">Since: 1.6</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-map-in-place"></a><h3>gst_caps_map_in_place ()</h3> |
| <pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| gst_caps_map_in_place (<em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>, |
| <em class="parameter"><code><a class="link" href="GstCaps.html#GstCapsMapFunc" title="GstCapsMapFunc ()"><span class="type">GstCapsMapFunc</span></a> func</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre> |
| <p>Calls the provided function once for each structure and caps feature in the |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>. In contrast to <a class="link" href="GstCaps.html#gst-caps-foreach" title="gst_caps_foreach ()"><code class="function">gst_caps_foreach()</code></a>, the function may modify but not |
| delete the structures and features. The caps must be mutable.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.40.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>func</p></td> |
| <td class="parameter_description"><p> a function to call for each field. </p></td> |
| <td class="parameter_annotations"><span class="annotation">[<acronym title="The callback is valid only during the call to the method."><span class="acronym">scope call</span></acronym>]</span></td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>user_data</p></td> |
| <td class="parameter_description"><p> private data. </p></td> |
| <td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym>]</span></td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.40.6"></a><h4>Returns</h4> |
| <p> <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the supplied function returns <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> for each call, |
| <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwise.</p> |
| </div> |
| <p class="since">Since: 1.6</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-filter-and-map-in-place"></a><h3>gst_caps_filter_and_map_in_place ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> |
| gst_caps_filter_and_map_in_place (<em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>, |
| <em class="parameter"><code><a class="link" href="GstCaps.html#GstCapsFilterMapFunc" title="GstCapsFilterMapFunc ()"><span class="type">GstCapsFilterMapFunc</span></a> func</code></em>, |
| <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre> |
| <p>Calls the provided function once for each structure and caps feature in the |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>. In contrast to <a class="link" href="GstCaps.html#gst-caps-foreach" title="gst_caps_foreach ()"><code class="function">gst_caps_foreach()</code></a>, the function may modify the |
| structure and features. In contrast to <a class="link" href="GstCaps.html#gst-caps-filter-and-map-in-place" title="gst_caps_filter_and_map_in_place ()"><code class="function">gst_caps_filter_and_map_in_place()</code></a>, |
| the structure and features are removed from the caps if <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> is returned |
| from the function. |
| The caps must be mutable.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.41.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>func</p></td> |
| <td class="parameter_description"><p> a function to call for each field. </p></td> |
| <td class="parameter_annotations"><span class="annotation">[<acronym title="The callback is valid only during the call to the method."><span class="acronym">scope call</span></acronym>]</span></td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>user_data</p></td> |
| <td class="parameter_description"><p> private data. </p></td> |
| <td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym>]</span></td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <p class="since">Since: 1.6</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-is-any"></a><h3>gst_caps_is_any ()</h3> |
| <pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| gst_caps_is_any (<em class="parameter"><code>const <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>);</pre> |
| <p>Determines if <em class="parameter"><code>caps</code></em> |
| represents any media format.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.42.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to test</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.42.6"></a><h4>Returns</h4> |
| <p> <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if <em class="parameter"><code>caps</code></em> |
| represents any format.</p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-is-empty"></a><h3>gst_caps_is_empty ()</h3> |
| <pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| gst_caps_is_empty (<em class="parameter"><code>const <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>);</pre> |
| <p>Determines if <em class="parameter"><code>caps</code></em> |
| represents no media formats.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.43.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to test</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.43.6"></a><h4>Returns</h4> |
| <p> <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if <em class="parameter"><code>caps</code></em> |
| represents no formats.</p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-is-fixed"></a><h3>gst_caps_is_fixed ()</h3> |
| <pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| gst_caps_is_fixed (<em class="parameter"><code>const <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>);</pre> |
| <p>Fixed <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> describe exactly one format, that is, they have exactly |
| one structure, and each field in the structure describes a fixed type. |
| Examples of non-fixed types are GST_TYPE_INT_RANGE and GST_TYPE_LIST.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.44.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to test</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.44.6"></a><h4>Returns</h4> |
| <p> <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if <em class="parameter"><code>caps</code></em> |
| is fixed</p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-is-equal"></a><h3>gst_caps_is_equal ()</h3> |
| <pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| gst_caps_is_equal (<em class="parameter"><code>const <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps1</code></em>, |
| <em class="parameter"><code>const <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps2</code></em>);</pre> |
| <p>Checks if the given caps represent the same set of caps.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.45.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps1</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>caps2</p></td> |
| <td class="parameter_description"><p>another <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.45.6"></a><h4>Returns</h4> |
| <p> <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if both caps are equal.</p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-is-equal-fixed"></a><h3>gst_caps_is_equal_fixed ()</h3> |
| <pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| gst_caps_is_equal_fixed (<em class="parameter"><code>const <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps1</code></em>, |
| <em class="parameter"><code>const <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps2</code></em>);</pre> |
| <p>Tests if two <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> are equal. This function only works on fixed |
| <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.46.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps1</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to test</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>caps2</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to test</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.46.6"></a><h4>Returns</h4> |
| <p> <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the arguments represent the same format</p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-is-strictly-equal"></a><h3>gst_caps_is_strictly_equal ()</h3> |
| <pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| gst_caps_is_strictly_equal (<em class="parameter"><code>const <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps1</code></em>, |
| <em class="parameter"><code>const <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps2</code></em>);</pre> |
| <p>Checks if the given caps are exactly the same set of caps.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.47.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps1</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>caps2</p></td> |
| <td class="parameter_description"><p>another <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.47.6"></a><h4>Returns</h4> |
| <p> <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if both caps are strictly equal.</p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-is-always-compatible"></a><h3>gst_caps_is_always_compatible ()</h3> |
| <pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| gst_caps_is_always_compatible (<em class="parameter"><code>const <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps1</code></em>, |
| <em class="parameter"><code>const <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps2</code></em>);</pre> |
| <p>A given <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> structure is always compatible with another if |
| every media format that is in the first is also contained in the |
| second. That is, <em class="parameter"><code>caps1</code></em> |
| is a subset of <em class="parameter"><code>caps2</code></em> |
| .</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.48.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps1</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to test</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>caps2</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to test</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.48.6"></a><h4>Returns</h4> |
| <p> <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if <em class="parameter"><code>caps1</code></em> |
| is a subset of <em class="parameter"><code>caps2</code></em> |
| .</p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-is-subset"></a><h3>gst_caps_is_subset ()</h3> |
| <pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| gst_caps_is_subset (<em class="parameter"><code>const <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *subset</code></em>, |
| <em class="parameter"><code>const <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *superset</code></em>);</pre> |
| <p>Checks if all caps represented by <em class="parameter"><code>subset</code></em> |
| are also represented by <em class="parameter"><code>superset</code></em> |
| .</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.49.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>subset</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>superset</p></td> |
| <td class="parameter_description"><p>a potentially greater <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.49.6"></a><h4>Returns</h4> |
| <p> <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if <em class="parameter"><code>subset</code></em> |
| is a subset of <em class="parameter"><code>superset</code></em> |
| </p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-is-subset-structure"></a><h3>gst_caps_is_subset_structure ()</h3> |
| <pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| gst_caps_is_subset_structure (<em class="parameter"><code>const <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>, |
| <em class="parameter"><code>const <a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> *structure</code></em>);</pre> |
| <p>Checks if <em class="parameter"><code>structure</code></em> |
| is a subset of <em class="parameter"><code>caps</code></em> |
| . See <a class="link" href="GstCaps.html#gst-caps-is-subset" title="gst_caps_is_subset ()"><code class="function">gst_caps_is_subset()</code></a> |
| for more information.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.50.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>structure</p></td> |
| <td class="parameter_description"><p>a potential <a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> subset of <em class="parameter"><code>caps</code></em> |
| </p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.50.6"></a><h4>Returns</h4> |
| <p> <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if <em class="parameter"><code>structure</code></em> |
| is a subset of <em class="parameter"><code>caps</code></em> |
| </p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-is-subset-structure-full"></a><h3>gst_caps_is_subset_structure_full ()</h3> |
| <pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| gst_caps_is_subset_structure_full (<em class="parameter"><code>const <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>, |
| <em class="parameter"><code>const <a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> *structure</code></em>, |
| <em class="parameter"><code>const <a class="link" href="GstCapsFeatures.html" title="GstCapsFeatures"><span class="type">GstCapsFeatures</span></a> *features</code></em>);</pre> |
| <p>Checks if <em class="parameter"><code>structure</code></em> |
| is a subset of <em class="parameter"><code>caps</code></em> |
| . See <a class="link" href="GstCaps.html#gst-caps-is-subset" title="gst_caps_is_subset ()"><code class="function">gst_caps_is_subset()</code></a> |
| for more information.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.51.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>structure</p></td> |
| <td class="parameter_description"><p>a potential <a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> subset of <em class="parameter"><code>caps</code></em> |
| </p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>features</p></td> |
| <td class="parameter_description"><p> a <a class="link" href="GstCapsFeatures.html" title="GstCapsFeatures"><span class="type">GstCapsFeatures</span></a> for <em class="parameter"><code>structure</code></em> |
| . </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> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.51.6"></a><h4>Returns</h4> |
| <p> <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if <em class="parameter"><code>structure</code></em> |
| is a subset of <em class="parameter"><code>caps</code></em> |
| </p> |
| </div> |
| <p class="since">Since: 1.2</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-can-intersect"></a><h3>gst_caps_can_intersect ()</h3> |
| <pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| gst_caps_can_intersect (<em class="parameter"><code>const <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps1</code></em>, |
| <em class="parameter"><code>const <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps2</code></em>);</pre> |
| <p>Tries intersecting <em class="parameter"><code>caps1</code></em> |
| and <em class="parameter"><code>caps2</code></em> |
| and reports whether the result would not |
| be empty</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.52.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps1</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to intersect</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>caps2</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to intersect</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.52.6"></a><h4>Returns</h4> |
| <p> <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if intersection would be not empty</p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-intersect"></a><h3>gst_caps_intersect ()</h3> |
| <pre class="programlisting"><a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| gst_caps_intersect (<em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps1</code></em>, |
| <em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps2</code></em>);</pre> |
| <p>Creates a new <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> that contains all the formats that are common |
| to both <em class="parameter"><code>caps1</code></em> |
| and <em class="parameter"><code>caps2</code></em> |
| . Defaults to <a class="link" href="GstCaps.html#GST-CAPS-INTERSECT-ZIG-ZAG:CAPS"><code class="literal">GST_CAPS_INTERSECT_ZIG_ZAG</code></a> mode.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.53.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps1</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to intersect</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>caps2</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to intersect</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.53.6"></a><h4>Returns</h4> |
| <p> the new <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a></p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-intersect-full"></a><h3>gst_caps_intersect_full ()</h3> |
| <pre class="programlisting"><a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| gst_caps_intersect_full (<em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps1</code></em>, |
| <em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps2</code></em>, |
| <em class="parameter"><code><a class="link" href="GstCaps.html#GstCapsIntersectMode" title="enum GstCapsIntersectMode"><span class="type">GstCapsIntersectMode</span></a> mode</code></em>);</pre> |
| <p>Creates a new <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> that contains all the formats that are common |
| to both <em class="parameter"><code>caps1</code></em> |
| and <em class="parameter"><code>caps2</code></em> |
| , the order is defined by the <a class="link" href="GstCaps.html#GstCapsIntersectMode" title="enum GstCapsIntersectMode"><span class="type">GstCapsIntersectMode</span></a> |
| used.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.54.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps1</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to intersect</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>caps2</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to intersect</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>mode</p></td> |
| <td class="parameter_description"><p>The intersection algorithm/mode to use</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.54.6"></a><h4>Returns</h4> |
| <p> the new <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a></p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-normalize"></a><h3>gst_caps_normalize ()</h3> |
| <pre class="programlisting"><a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| gst_caps_normalize (<em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>);</pre> |
| <p>Returns a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> that represents the same set of formats as |
| <em class="parameter"><code>caps</code></em> |
| , but contains no lists. Each list is expanded into separate |
| <em class="parameter"><code>GstStructures</code></em> |
| .</p> |
| <p>This function takes ownership of <em class="parameter"><code>caps</code></em> |
| .</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.55.6"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p> a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to normalize. </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="id-1.3.11.8.55.7"></a><h4>Returns</h4> |
| <p> the normalized <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>. </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-caps-simplify"></a><h3>gst_caps_simplify ()</h3> |
| <pre class="programlisting"><a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| gst_caps_simplify (<em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>);</pre> |
| <p>Converts the given <em class="parameter"><code>caps</code></em> |
| into a representation that represents the |
| same set of formats, but in a simpler form. Component structures that are |
| identical are merged. Component structures that have values that can be |
| merged are also merged.</p> |
| <p>This method does not preserve the original order of <em class="parameter"><code>caps</code></em> |
| .</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.56.6"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p> a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to simplify. </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="id-1.3.11.8.56.7"></a><h4>Returns</h4> |
| <p> The simplified caps.</p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-replace"></a><h3>gst_caps_replace ()</h3> |
| <pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| gst_caps_replace (<em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> **old_caps</code></em>, |
| <em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *new_caps</code></em>);</pre> |
| <p>Modifies a pointer to a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to point to a different <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>. The |
| modification is done atomically (so this is useful for ensuring thread safety |
| in some cases), and the reference counts are updated appropriately (the old |
| caps is unreffed, the new is reffed).</p> |
| <p>Either <em class="parameter"><code>new_caps</code></em> |
| or the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> pointed to by <em class="parameter"><code>old_caps</code></em> |
| may be <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.57.6"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>old_caps</p></td> |
| <td class="parameter_description"><p> pointer to a pointer |
| to a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to be replaced. </p></td> |
| <td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for input and for returning results. Default is transfer full."><span class="acronym">inout</span></acronym>][<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></td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>new_caps</p></td> |
| <td class="parameter_description"><p> pointer to a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> that will |
| replace the caps pointed to by <em class="parameter"><code>old_caps</code></em> |
| . </p></td> |
| <td class="parameter_annotations"><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.57.7"></a><h4>Returns</h4> |
| <p> <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if <em class="parameter"><code>new_caps</code></em> |
| was different from <em class="parameter"><code>old_caps</code></em> |
| </p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-take"></a><h3>gst_caps_take ()</h3> |
| <pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| gst_caps_take (<em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> **old_caps</code></em>, |
| <em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *new_caps</code></em>);</pre> |
| <p>Modifies a pointer to a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to point to a different <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>. This |
| function is similar to <a class="link" href="GstCaps.html#gst-caps-replace" title="gst_caps_replace ()"><code class="function">gst_caps_replace()</code></a> except that it takes ownership |
| of <em class="parameter"><code>new_caps</code></em> |
| .</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.58.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>old_caps</p></td> |
| <td class="parameter_description"><p> pointer to a pointer to a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to be |
| replaced. </p></td> |
| <td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for input and for returning results. Default is transfer full."><span class="acronym">inout</span></acronym>][<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>new_caps</p></td> |
| <td class="parameter_description"><p> pointer to a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> that will |
| replace the caps pointed to by <em class="parameter"><code>old_caps</code></em> |
| . </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>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.58.6"></a><h4>Returns</h4> |
| <p> <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if <em class="parameter"><code>new_caps</code></em> |
| was different from <em class="parameter"><code>old_caps</code></em> |
| </p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-to-string"></a><h3>gst_caps_to_string ()</h3> |
| <pre class="programlisting"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> * |
| gst_caps_to_string (<em class="parameter"><code>const <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>);</pre> |
| <p>Converts <em class="parameter"><code>caps</code></em> |
| to a string representation. This string representation |
| can be converted back to a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> by <a class="link" href="GstCaps.html#gst-caps-from-string" title="gst_caps_from_string ()"><code class="function">gst_caps_from_string()</code></a>.</p> |
| <p>For debugging purposes its easier to do something like this:</p> |
| <div class="informalexample"> |
| <table class="listing_frame" border="0" cellpadding="0" cellspacing="0"> |
| <tbody> |
| <tr> |
| <td class="listing_lines" align="right"><pre>1</pre></td> |
| <td class="listing_code"><pre class="programlisting"><span class="function"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstInfo.html#GST-LOG:CAPS">GST_LOG</a></span> <span class="gtkdoc opt">(</span><span class="string">"caps are %"</span> GST_PTR_FORMAT<span class="gtkdoc opt">,</span> caps<span class="gtkdoc opt">);</span></pre></td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| |
| <p> |
| This prints the caps in human readable form.</p> |
| <p>The current implementation of serialization will lead to unexpected results |
| when there are nested <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> / <a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> deeper than one level.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.59.9"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.59.10"></a><h4>Returns</h4> |
| <p> a newly allocated string representing <em class="parameter"><code>caps</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-caps-from-string"></a><h3>gst_caps_from_string ()</h3> |
| <pre class="programlisting"><a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| gst_caps_from_string (<em class="parameter"><code>const <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *string</code></em>);</pre> |
| <p>Converts <em class="parameter"><code>caps</code></em> |
| from a string representation.</p> |
| <p>The current implementation of serialization will lead to unexpected results |
| when there are nested <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> / <a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a> deeper than one level.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.60.6"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>string</p></td> |
| <td class="parameter_description"><p>a string to convert to <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.60.7"></a><h4>Returns</h4> |
| <p> a newly allocated <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>. </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-caps-subtract"></a><h3>gst_caps_subtract ()</h3> |
| <pre class="programlisting"><a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| gst_caps_subtract (<em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *minuend</code></em>, |
| <em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *subtrahend</code></em>);</pre> |
| <p>Subtracts the <em class="parameter"><code>subtrahend</code></em> |
| from the <em class="parameter"><code>minuend</code></em> |
| .</p> |
| <div class="note">This function does not work reliably if optional properties for caps |
| are included on one caps and omitted on the other.</div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.61.6"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>minuend</p></td> |
| <td class="parameter_description"><p><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to subtract from</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>subtrahend</p></td> |
| <td class="parameter_description"><p><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to subtract</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.61.7"></a><h4>Returns</h4> |
| <p> the resulting caps</p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-make-writable"></a><h3>gst_caps_make_writable()</h3> |
| <pre class="programlisting">#define gst_caps_make_writable(caps) GST_CAPS_CAST (gst_mini_object_make_writable (GST_MINI_OBJECT_CAST (caps))) |
| </pre> |
| <p>Returns a writable copy of <em class="parameter"><code>caps</code></em> |
| .</p> |
| <p>If there is only one reference count on <em class="parameter"><code>caps</code></em> |
| , the caller must be the owner, |
| and so this function will return the caps object unchanged. If on the other |
| hand there is more than one reference on the object, a new caps object will |
| be returned. The caller's reference on <em class="parameter"><code>caps</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 caps in the argument and refs the caps |
| that it returns. Don't access the argument after calling this function. See |
| also: <a class="link" href="GstCaps.html#gst-caps-ref" title="gst_caps_ref ()"><code class="function">gst_caps_ref()</code></a>.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.62.7"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p> a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</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="id-1.3.11.8.62.8"></a><h4>Returns</h4> |
| <p> a writable caps which may or may not be the |
| same as <em class="parameter"><code>caps</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-caps-truncate"></a><h3>gst_caps_truncate ()</h3> |
| <pre class="programlisting"><a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| gst_caps_truncate (<em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>);</pre> |
| <p>Discard all but the first structure from <em class="parameter"><code>caps</code></em> |
| . Useful when |
| fixating.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.63.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p> the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to truncate. </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="id-1.3.11.8.63.6"></a><h4>Returns</h4> |
| <p> truncated caps. </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-caps-fixate"></a><h3>gst_caps_fixate ()</h3> |
| <pre class="programlisting"><a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| gst_caps_fixate (<em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>);</pre> |
| <p>Modifies the given <em class="parameter"><code>caps</code></em> |
| into a representation with only fixed |
| values. First the caps will be truncated and then the first structure will be |
| fixated with <a class="link" href="GstStructure.html#gst-structure-fixate" title="gst_structure_fixate ()"><code class="function">gst_structure_fixate()</code></a>.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.64.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p> a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to fixate. </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="id-1.3.11.8.64.6"></a><h4>Returns</h4> |
| <p> the fixated caps. </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-caps-ref"></a><h3>gst_caps_ref ()</h3> |
| <pre class="programlisting"><a class="link" href="GstCaps.html" title="GstCaps"><span class="returnvalue">GstCaps</span></a> * |
| gst_caps_ref (<em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>);</pre> |
| <p>Add a reference to a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> object.</p> |
| <p>From this point on, until the caller calls <a class="link" href="GstCaps.html#gst-caps-unref" title="gst_caps_unref ()"><code class="function">gst_caps_unref()</code></a> or |
| <a class="link" href="GstCaps.html#gst-caps-make-writable" title="gst_caps_make_writable()"><code class="function">gst_caps_make_writable()</code></a>, it is guaranteed that the caps object will not |
| change. This means its structures won't change, etc. To use a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> |
| object, you must always have a refcount on it -- either the one made |
| implicitly by e.g. <a class="link" href="GstCaps.html#gst-caps-new-simple" title="gst_caps_new_simple ()"><code class="function">gst_caps_new_simple()</code></a>, or via taking one explicitly with |
| this function.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.65.6"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>the <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> to reference</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.65.7"></a><h4>Returns</h4> |
| <p> the same <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> object.</p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-caps-unref"></a><h3>gst_caps_unref ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> |
| gst_caps_unref (<em class="parameter"><code><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *caps</code></em>);</pre> |
| <p>Unref a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> and and free all its structures and the |
| structures' values when the refcount reaches 0.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.8.66.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table 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>caps</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>.</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="GstCaps.other_details"></a><h2>Types and Values</h2> |
| <div class="refsect2"> |
| <a name="GstCaps-struct"></a><h3>struct GstCaps</h3> |
| <pre class="programlisting">struct GstCaps { |
| GstMiniObject mini_object; |
| }; |
| </pre> |
| <p>Object describing media types.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.9.2.5"></a><h4>Members</h4> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="300px" class="struct_members_name"> |
| <col class="struct_members_description"> |
| <col width="200px" class="struct_members_annotations"> |
| </colgroup> |
| <tbody><tr> |
| <td class="struct_member_name"><p><a class="link" href="gstreamer-GstMiniObject.html#GstMiniObject" title="struct GstMiniObject"><span class="type">GstMiniObject</span></a> <em class="structfield"><code><a name="GstCaps-struct.mini-object"></a>mini_object</code></em>;</p></td> |
| <td class="struct_member_description"><p>the parent type</p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstStaticCaps"></a><h3>struct GstStaticCaps</h3> |
| <pre class="programlisting">struct GstStaticCaps { |
| GstCaps *caps; |
| const char *string; |
| }; |
| </pre> |
| <p>Datastructure to initialize <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> from a string description usually |
| used in conjunction with <a class="link" href="GstCaps.html#GST-STATIC-CAPS" title="GST_STATIC_CAPS()"><code class="function">GST_STATIC_CAPS()</code></a> and <a class="link" href="GstCaps.html#gst-static-caps-get" title="gst_static_caps_get ()"><code class="function">gst_static_caps_get()</code></a> to |
| instantiate a <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a>.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.9.3.5"></a><h4>Members</h4> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="300px" class="struct_members_name"> |
| <col class="struct_members_description"> |
| <col width="200px" class="struct_members_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="struct_member_name"><p><a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> *<em class="structfield"><code><a name="GstStaticCaps.caps"></a>caps</code></em>;</p></td> |
| <td class="struct_member_description"><p>the cached <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a></p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="struct_member_name"><p>const <span class="type">char</span> *<em class="structfield"><code><a name="GstStaticCaps.string"></a>string</code></em>;</p></td> |
| <td class="struct_member_description"><p>a string describing a caps</p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstCapsIntersectMode"></a><h3>enum GstCapsIntersectMode</h3> |
| <p>Modes of caps intersection</p> |
| <p><em class="parameter"><code>GST_CAPS_INTERSECT_ZIG_ZAG</code></em> |
| tries to preserve overall order of both caps |
| by iterating on the caps' structures as the following matrix shows:</p> |
| <div class="informalexample"> |
| <table class="listing_frame" border="0" cellpadding="0" cellspacing="0"> |
| <tbody> |
| <tr> |
| <td class="listing_lines" align="right"><pre>1 |
| 2 |
| 3 |
| 4 |
| 5</pre></td> |
| <td class="listing_code"><pre class="programlisting">caps1 |
| <span class="gtkdoc opt">+-------------</span> |
| <span class="gtkdoc opt">|</span> <span class="number">1 2 4 7</span> |
| caps2 <span class="gtkdoc opt">|</span> <span class="number">3 5 8 10</span> |
| <span class="gtkdoc opt">|</span> <span class="number">6 9 11 12</span></pre></td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| |
| <p> |
| Used when there is no explicit precedence of one caps over the other. e.g. |
| tee's sink pad getcaps function, it will probe its src pad peers' for their |
| caps and intersect them with this mode.</p> |
| <p><em class="parameter"><code>GST_CAPS_INTERSECT_FIRST</code></em> |
| is useful when an element wants to preserve |
| another element's caps priority order when intersecting with its own caps. |
| Example: If caps1 is [A, B, C] and caps2 is [E, B, D, A], the result |
| would be [A, B], maintaining the first caps priority on the intersection.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.9.4.8"></a><h4>Members</h4> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="300px" class="enum_members_name"> |
| <col class="enum_members_description"> |
| <col width="200px" class="enum_members_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="enum_member_name"><p><a name="GST-CAPS-INTERSECT-ZIG-ZAG:CAPS"></a>GST_CAPS_INTERSECT_ZIG_ZAG</p></td> |
| <td class="enum_member_description"> |
| <p>Zig-zags over both caps.</p> |
| </td> |
| <td class="enum_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="enum_member_name"><p><a name="GST-CAPS-INTERSECT-FIRST:CAPS"></a>GST_CAPS_INTERSECT_FIRST</p></td> |
| <td class="enum_member_description"> |
| <p>Keeps the first caps order.</p> |
| </td> |
| <td class="enum_member_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstCapsFlags"></a><h3>enum GstCapsFlags</h3> |
| <p>Extra flags for a caps.</p> |
| <div class="refsect3"> |
| <a name="id-1.3.11.9.5.4"></a><h4>Members</h4> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="300px" class="enum_members_name"> |
| <col class="enum_members_description"> |
| <col width="200px" class="enum_members_annotations"> |
| </colgroup> |
| <tbody><tr> |
| <td class="enum_member_name"><p><a name="GST-CAPS-FLAG-ANY:CAPS"></a>GST_CAPS_FLAG_ANY</p></td> |
| <td class="enum_member_description"> |
| <p>Caps has no specific content, but can contain |
| anything.</p> |
| </td> |
| <td class="enum_member_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-CAPS-ANY:CAPS"></a><h3>GST_CAPS_ANY</h3> |
| <pre class="programlisting">#define GST_CAPS_ANY _gst_caps_any |
| </pre> |
| <p>Means that the element/pad can output 'anything'. Useful for elements |
| that output unknown media, such as filesrc. This macro returns a singleton and |
| should not be unreffed.</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-CAPS-NONE:CAPS"></a><h3>GST_CAPS_NONE</h3> |
| <pre class="programlisting">#define GST_CAPS_NONE _gst_caps_none |
| </pre> |
| <p>The opposite of <a class="link" href="GstCaps.html#GST-CAPS-ANY:CAPS" title="GST_CAPS_ANY"><code class="literal">GST_CAPS_ANY</code></a>: it means that the pad/element outputs an |
| undefined media type that can not be detected. This macro returns a singleton |
| and should not be unreffed.</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-STATIC-CAPS-ANY:CAPS"></a><h3>GST_STATIC_CAPS_ANY</h3> |
| <pre class="programlisting">#define GST_STATIC_CAPS_ANY GST_STATIC_CAPS("ANY") |
| </pre> |
| <p>Creates a new <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> static caps that matches anything. |
| This can be used in pad templates.</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GST-STATIC-CAPS-NONE:CAPS"></a><h3>GST_STATIC_CAPS_NONE</h3> |
| <pre class="programlisting">#define GST_STATIC_CAPS_NONE GST_STATIC_CAPS("NONE") |
| </pre> |
| <p>Creates a new <a class="link" href="GstCaps.html" title="GstCaps"><span class="type">GstCaps</span></a> static caps that matches nothing. |
| This can be used in pad templates.</p> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="GstCaps.see-also"></a><h2>See Also</h2> |
| <p><a class="link" href="GstStructure.html" title="GstStructure"><span class="type">GstStructure</span></a>, <a class="link" href="gstreamer-GstMiniObject.html#GstMiniObject" title="struct GstMiniObject"><span class="type">GstMiniObject</span></a></p> |
| </div> |
| </div> |
| <div class="footer"> |
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