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gst: structure: add more GstIdStr methods
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7613>
This commit is contained in:
François Laignel
parent
86776dc62e
commit
067fe7b9bc
3 changed files with 212 additions and 4 deletions
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@ -42160,7 +42160,7 @@ Free-function: gst_structure_free</doc>
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</constructor>
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<constructor name="new_id_str" c:identifier="gst_structure_new_id_str" version="1.26" introspectable="0">
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<doc xml:space="preserve" filename="../subprojects/gstreamer/gst/gststructure.c">Creates a new #GstStructure with the given name as a GQuark, followed by
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fieldname quark, GType, argument(s) "triplets" in the same format as
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fieldname GstIdStr, GType, argument(s) "triplets" in the same format as
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gst_structure_id_set(). Basically a convenience wrapper around
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gst_structure_new_id_empty() and gst_structure_id_set().
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@ -43066,7 +43066,7 @@ function returns %FALSE.</doc>
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<doc xml:space="preserve" filename="../subprojects/gstreamer/gst/gststructure.c">Get the name of @structure as a GstIdStr.</doc>
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<source-position filename="../subprojects/gstreamer/gst/gststructure.h"/>
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<return-value transfer-ownership="none">
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<doc xml:space="preserve" filename="../subprojects/gstreamer/gst/gststructure.c">the quark representing the name of the structure.</doc>
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<doc xml:space="preserve" filename="../subprojects/gstreamer/gst/gststructure.c">the name of the structure.</doc>
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<type name="IdStr" c:type="const GstIdStr*"/>
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</return-value>
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<parameters>
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@ -43565,11 +43565,91 @@ name.</doc>
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</parameter>
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</parameters>
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</method>
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<method name="id_str_nth_field_name" c:identifier="gst_structure_id_str_nth_field_name" version="1.26">
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<doc xml:space="preserve" filename="../subprojects/gstreamer/gst/gststructure.c">Get the name (as a GstIdStr) of the given field number,
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counting from 0 onwards.</doc>
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<source-position filename="../subprojects/gstreamer/gst/gststructure.h"/>
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<return-value transfer-ownership="none">
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<doc xml:space="preserve" filename="../subprojects/gstreamer/gst/gststructure.c">the name of the given field number</doc>
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<type name="IdStr" c:type="const GstIdStr*"/>
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</return-value>
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<parameters>
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<instance-parameter name="structure" transfer-ownership="none">
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<doc xml:space="preserve" filename="../subprojects/gstreamer/gst/gststructure.c">a #GstStructure</doc>
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<type name="Structure" c:type="const GstStructure*"/>
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</instance-parameter>
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<parameter name="index" transfer-ownership="none">
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<doc xml:space="preserve" filename="../subprojects/gstreamer/gst/gststructure.c">the index to get the name of</doc>
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<type name="guint" c:type="guint"/>
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</parameter>
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</parameters>
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</method>
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<method name="id_str_remove_field" c:identifier="gst_structure_id_str_remove_field" version="1.26">
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<doc xml:space="preserve" filename="../subprojects/gstreamer/gst/gststructure.c">Removes the field with the given name. If the field with the given
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name does not exist, the structure is unchanged.</doc>
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<source-position filename="../subprojects/gstreamer/gst/gststructure.h"/>
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<return-value transfer-ownership="none">
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<type name="none" c:type="void"/>
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</return-value>
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<parameters>
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<instance-parameter name="structure" transfer-ownership="none">
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<doc xml:space="preserve" filename="../subprojects/gstreamer/gst/gststructure.c">a #GstStructure</doc>
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<type name="Structure" c:type="GstStructure*"/>
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</instance-parameter>
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<parameter name="fieldname" transfer-ownership="none">
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<doc xml:space="preserve" filename="../subprojects/gstreamer/gst/gststructure.c">the name of the field to remove</doc>
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<type name="IdStr" c:type="const GstIdStr*"/>
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</parameter>
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</parameters>
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</method>
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<method name="id_str_remove_fields" c:identifier="gst_structure_id_str_remove_fields" version="1.26" introspectable="0">
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<doc xml:space="preserve" filename="../subprojects/gstreamer/gst/gststructure.c">Removes the fields with the given names. If a field does not exist, the
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argument is ignored.</doc>
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<source-position filename="../subprojects/gstreamer/gst/gststructure.h"/>
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<return-value transfer-ownership="none">
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<type name="none" c:type="void"/>
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</return-value>
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<parameters>
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<instance-parameter name="structure" transfer-ownership="none">
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<doc xml:space="preserve" filename="../subprojects/gstreamer/gst/gststructure.c">a #GstStructure</doc>
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<type name="Structure" c:type="GstStructure*"/>
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</instance-parameter>
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<parameter name="fieldname" transfer-ownership="none">
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<doc xml:space="preserve" filename="../subprojects/gstreamer/gst/gststructure.c">the name of the field to remove</doc>
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<type name="IdStr" c:type="const GstIdStr*"/>
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</parameter>
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<parameter name="..." transfer-ownership="none">
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<doc xml:space="preserve" filename="../subprojects/gstreamer/gst/gststructure.c">%NULL-terminated list of more fieldnames to remove</doc>
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<varargs/>
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</parameter>
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</parameters>
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</method>
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<method name="id_str_remove_fields_valist" c:identifier="gst_structure_id_str_remove_fields_valist" version="1.26" introspectable="0">
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<doc xml:space="preserve" filename="../subprojects/gstreamer/gst/gststructure.c">va_list form of gst_structure_id_str_remove_fields().</doc>
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<source-position filename="../subprojects/gstreamer/gst/gststructure.h"/>
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<return-value transfer-ownership="none">
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<type name="none" c:type="void"/>
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</return-value>
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<parameters>
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<instance-parameter name="structure" transfer-ownership="none">
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<doc xml:space="preserve" filename="../subprojects/gstreamer/gst/gststructure.c">a #GstStructure</doc>
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<type name="Structure" c:type="GstStructure*"/>
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</instance-parameter>
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<parameter name="fieldname" transfer-ownership="none">
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<doc xml:space="preserve" filename="../subprojects/gstreamer/gst/gststructure.c">the name of the field to remove</doc>
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<type name="IdStr" c:type="const GstIdStr*"/>
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</parameter>
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<parameter name="varargs" transfer-ownership="none">
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<doc xml:space="preserve" filename="../subprojects/gstreamer/gst/gststructure.c">%NULL-terminated list of more fieldnames to remove</doc>
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<type name="va_list" c:type="va_list"/>
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</parameter>
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</parameters>
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</method>
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<method name="id_str_set" c:identifier="gst_structure_id_str_set" version="1.26" introspectable="0">
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<doc xml:space="preserve" filename="../subprojects/gstreamer/gst/gststructure.c">Identical to gst_structure_set, except that field names are
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passed using a GstIdStr for the field name. This allows more efficient
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setting of the structure if the caller already knows the associated
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quark values.
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setting of the structure if the caller already owns the associated
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GstIdStr values or if they can be built from static literals.
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The last variable argument must be %NULL.</doc>
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<source-position filename="../subprojects/gstreamer/gst/gststructure.h"/>
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<return-value transfer-ownership="none">
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@ -1827,6 +1827,94 @@ gst_structure_remove_fields_valist (GstStructure * structure,
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}
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}
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/**
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* gst_structure_id_str_remove_field:
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* @structure: a #GstStructure
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* @fieldname: the name of the field to remove
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*
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* Removes the field with the given name. If the field with the given
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* name does not exist, the structure is unchanged.
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*
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* Since: 1.26
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*/
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void
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gst_structure_id_str_remove_field (GstStructure * structure,
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const GstIdStr * fieldname)
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{
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GstStructureField *field;
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guint i, len;
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g_return_if_fail (structure != NULL);
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g_return_if_fail (fieldname != NULL);
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g_return_if_fail (IS_MUTABLE (structure));
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len = GST_STRUCTURE_LEN (structure);
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for (i = 0; i < len; i++) {
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field = GST_STRUCTURE_FIELD (structure, i);
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if (gst_id_str_is_equal (&field->name, fieldname)) {
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if (G_IS_VALUE (&field->value)) {
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g_value_unset (&field->value);
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}
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gst_id_str_clear (&field->name);
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_structure_remove_index (structure, i);
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return;
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}
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}
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}
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/**
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* gst_structure_id_str_remove_fields:
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* @structure: a #GstStructure
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* @fieldname: the name of the field to remove
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* @...: %NULL-terminated list of more fieldnames to remove
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*
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* Removes the fields with the given names. If a field does not exist, the
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* argument is ignored.
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*
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* Since: 1.26
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*/
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void
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gst_structure_id_str_remove_fields (GstStructure * structure,
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const GstIdStr * fieldname, ...)
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{
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va_list varargs;
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g_return_if_fail (structure != NULL);
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g_return_if_fail (fieldname != NULL);
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/* mutability checked in remove_field */
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va_start (varargs, fieldname);
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gst_structure_id_str_remove_fields_valist (structure, fieldname, varargs);
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va_end (varargs);
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}
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/**
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* gst_structure_id_str_remove_fields_valist:
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* @structure: a #GstStructure
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* @fieldname: the name of the field to remove
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* @varargs: %NULL-terminated list of more fieldnames to remove
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*
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* va_list form of gst_structure_id_str_remove_fields().
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*
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* Since: 1.26
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*/
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void
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gst_structure_id_str_remove_fields_valist (GstStructure * structure,
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const GstIdStr * fieldname, va_list varargs)
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{
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const GstIdStr *field = fieldname;
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g_return_if_fail (structure != NULL);
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g_return_if_fail (fieldname != NULL);
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/* mutability checked in remove_field */
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while (field) {
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gst_structure_id_str_remove_field (structure, field);
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field = va_arg (varargs, const GstIdStr *);
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}
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}
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/**
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* gst_structure_remove_all_fields:
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* @structure: a #GstStructure
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@ -1918,6 +2006,32 @@ gst_structure_nth_field_name (const GstStructure * structure, guint index)
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return gst_id_str_as_str (&field->name);
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}
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/**
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* gst_structure_id_str_nth_field_name:
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* @structure: a #GstStructure
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* @index: the index to get the name of
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*
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* Get the name (as a GstIdStr) of the given field number,
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* counting from 0 onwards.
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*
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* Returns: the name of the given field number
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*
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* Since: 1.26
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*/
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const GstIdStr *
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gst_structure_id_str_nth_field_name (const GstStructure * structure,
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guint index)
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{
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GstStructureField *field;
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g_return_val_if_fail (structure != NULL, NULL);
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g_return_val_if_fail (index < GST_STRUCTURE_LEN (structure), NULL);
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field = GST_STRUCTURE_FIELD (structure, index);
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return &field->name;
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}
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typedef struct
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{
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GstStructureForeachFunc func;
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@ -377,6 +377,17 @@ void gst_structure_remove_fields_valist (GstStructure *
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const gchar * fieldname,
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va_list varargs);
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GST_API
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void gst_structure_id_str_remove_field (GstStructure * structure,
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const GstIdStr * fieldname);
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GST_API
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void gst_structure_id_str_remove_fields (GstStructure * structure,
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const GstIdStr * fieldname,
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...) G_GNUC_NULL_TERMINATED;
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GST_API
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void gst_structure_id_str_remove_fields_valist(GstStructure * structure,
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const GstIdStr * fieldname,
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va_list varargs);
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GST_API
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void gst_structure_remove_all_fields (GstStructure * structure);
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GST_API
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@ -412,6 +423,9 @@ gint gst_structure_n_fields (const GstStructure *
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GST_API
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const gchar * gst_structure_nth_field_name (const GstStructure * structure,
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guint index);
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GST_API
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const GstIdStr * gst_structure_id_str_nth_field_name(const GstStructure * structure,
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guint index);
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GST_DEPRECATED_FOR(gst_structure_id_str_has_field)
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gboolean gst_structure_id_has_field (const GstStructure * structure,
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GQuark field);
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