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caps, structure, taglist: micro-optimisations

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Avoid some unnecessary GValue copying by making use of
gst_structure_id_take_value() where possible.
This commit is contained in:
Tim-Philipp Müller 2012-12-22 16:50:49 +00:00
parent 172011d1f5
commit 22036ef1c4
3 changed files with 9 additions and 15 deletions
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12
gst/gstcaps.c
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@ -1350,8 +1350,7 @@ gst_caps_structure_subtract_field (GQuark field_id, const GValue * value,
return FALSE;
} else {
structure = gst_structure_copy (e->subtract_from);
gst_structure_id_set_value (structure, field_id, &subtraction);
g_value_unset (&subtraction);
gst_structure_id_take_value (structure, field_id, &subtraction);
e->put_into = g_slist_prepend (e->put_into, structure);
return TRUE;
}
@ -1488,9 +1487,7 @@ gst_caps_normalize_foreach (GQuark field_id, const GValue * value, gpointer ptr)
}
gst_value_init_and_copy (&val, gst_value_list_get_value (value, 0));
gst_structure_id_set_value (nf->structure, field_id, &val);
g_value_unset (&val);
gst_structure_id_take_value (nf->structure, field_id, &val);
return FALSE;
}
return TRUE;
@ -1611,11 +1608,12 @@ gst_caps_structure_simplify (GstStructure ** result,
* but at most one field: field.name */
if (G_IS_VALUE (&field.value)) {
if (gst_structure_n_fields (simplify) == gst_structure_n_fields (compare)) {
gst_structure_id_set_value (compare, field.name, &field.value);
gst_structure_id_take_value (compare, field.name, &field.value);
*result = NULL;
ret = TRUE;
} else {
g_value_unset (&field.value);
}
g_value_unset (&field.value);
} else if (gst_structure_n_fields (simplify) <=
gst_structure_n_fields (compare)) {
/* compare is just more specific, will be optimized away later */

6
gst/gststructure.c
View file

@ -2687,8 +2687,7 @@ default_fixate (GQuark field_id, const GValue * value, gpointer data)
GValue v = { 0 };
if (gst_value_fixate (&v, value)) {
gst_structure_id_set_value (s, field_id, &v);
g_value_unset (&v);
gst_structure_id_take_value (s, field_id, &v);
}
return TRUE;
}
@ -3023,8 +3022,7 @@ gst_structure_intersect_field1 (GQuark id, const GValue * val1, gpointer data)
} else {
GValue dest_value = { 0 };
if (gst_value_intersect (&dest_value, val1, val2)) {
gst_structure_id_set_value (idata->dest, id, &dest_value);
g_value_unset (&dest_value);
gst_structure_id_take_value (idata->dest, id, &dest_value);
} else {
return FALSE;
}

6
gst/gsttaglist.c
View file

@ -1026,13 +1026,11 @@ gst_tag_list_add_value_internal (GstTagList * tag_list, GstTagMergeMode mode,
break;
case GST_TAG_MERGE_PREPEND:
gst_value_list_merge (&dest, value, value2);
gst_structure_id_set_value (list, tag_quark, &dest);
g_value_unset (&dest);
gst_structure_id_take_value (list, tag_quark, &dest);
break;
case GST_TAG_MERGE_APPEND:
gst_value_list_merge (&dest, value2, value);
gst_structure_id_set_value (list, tag_quark, &dest);
g_value_unset (&dest);
gst_structure_id_take_value (list, tag_quark, &dest);
break;
case GST_TAG_MERGE_KEEP:
case GST_TAG_MERGE_KEEP_ALL: