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Added gst_props_get_safe

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Original commit message from CVS:
Added gst_props_get_safe
This commit is contained in:
Wim Taymans 2002-05-08 20:00:35 +00:00
parent e559ea8a64
commit 720ee1f361
2 changed files with 45 additions and 13 deletions
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57
gst/gstprops.c
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@ -1008,6 +1008,22 @@ gst_props_entry_get_safe (const GstPropsEntry *entry, ...)
return result;
}
static gboolean
gst_props_getv (GstProps *props, gboolean safe, gchar *first_name, va_list var_args)
{
while (first_name) {
const GstPropsEntry *entry = gst_props_get_entry (props, first_name);
gboolean result;
if (!entry) return FALSE;
GST_PROPS_ENTRY_READ (entry, var_args, FALSE, &result);
if (!result) return FALSE;
first_name = va_arg (var_args, gchar *);
}
return TRUE;
}
/**
* gst_props_get:
* @props: the props to query
@ -1022,22 +1038,36 @@ gboolean
gst_props_get (GstProps *props, gchar *first_name, ...)
{
va_list var_args;
gboolean ret;
va_start (var_args, first_name);
while (first_name) {
const GstPropsEntry *entry = gst_props_get_entry (props, first_name);
gboolean result;
if (!entry) return FALSE;
GST_PROPS_ENTRY_READ (entry, var_args, FALSE, &result);
if (!result) return FALSE;
first_name = va_arg (var_args, gchar *);
}
ret = gst_props_getv (props, FALSE, first_name, var_args);
va_end (var_args);
return TRUE;
return ret;
}
/**
* gst_props_get_safe:
* @props: the props to query
* @first_name: the first key
* @...: a pointer to a datastructure that can hold the value.
*
* Gets the contents of the props into given key/value pairs.
*
* Returns: TRUE is the props entry could be fetched.
*/
gboolean
gst_props_get_safe (GstProps *props, gchar *first_name, ...)
{
va_list var_args;
gboolean ret;
va_start (var_args, first_name);
ret = gst_props_getv (props, TRUE, first_name, var_args);
va_end (var_args);
return ret;
}
/**
@ -1432,7 +1462,8 @@ gst_props_entry_intersect (GstPropsEntry *entry1, GstPropsEntry *entry2)
if (intersectentry) {
if (intersectentry->propstype == GST_PROPS_LIST_TYPE) {
intersection = g_list_concat (intersection, intersectentry->data.list_data.entries);
intersection = g_list_concat (intersection,
g_list_copy (intersectentry->data.list_data.entries));
/* set the list to NULL because the entries are concatenated to the above
* list and we don't want to free them */
intersectentry->data.list_data.entries = NULL;

1
gst/gstprops.h
View file

@ -106,6 +106,7 @@ GList* gst_props_normalize (GstProps *props);
GstProps* gst_props_set (GstProps *props, const gchar *name, ...);
gboolean gst_props_get (GstProps *props, gchar *first_name, ...);
gboolean gst_props_get_safe (GstProps *props, gchar *first_name, ...);
gboolean gst_props_has_property (GstProps *props, const gchar *name);
gboolean gst_props_has_property_typed (GstProps *props, const gchar *name, GstPropsType type);