| GStreamer 0.10 Core Reference Manual | ||||
|---|---|---|---|---|
#include <gst/gst.h> gboolean (*GstFilterFunc) (gpointer obj, gpointer user_data); GList* gst_filter_run (const GList *list, GstFilterFunc func, gboolean first, gpointer user_data);
Example 9. Filtering a list
GList *node;
GstObject *result = NULL;
node = gst_filter_run (list, (GstFilterFunc) my_filter, TRUE, NULL);
if (node) {
result = GST_OBJECT (node->data);
gst_object_ref (result);
gst_list_free (node);
}
gboolean (*GstFilterFunc) (gpointer obj,
gpointer user_data);
Function prototype for a filter callback taht can be use in gst_filter_run().
The function should apply its filtering to obj. Additional data passed to
gst_filter_run() are in data.
obj :obj the object
the object
user_data :user_data filter data
filter data
Returns :Returns TRUE for success.
TRUE for success.
TRUETRUE
obj : |
the object |
user_data : |
filter data |
| Returns : | TRUE for success.
|
GList* gst_filter_run (const GList *list,
GstFilterFunc func,
gboolean first,
gpointer user_data);
Iterates over the elements in list, calling func with the
list item data for each item. If func returns TRUE, data is
prepended to the list of results returned. If first is true,
the search is halted after the first result is found.
list :list a linked list
a linked list
func :func the function to execute for each item
the function to execute for each item
first :first flag to stop execution after a successful item
flag to stop execution after a successful item
user_data :user_data user data
user data
Returns :Returns the list of results
the list of results
list : |
a linked list |
func : |
the function to execute for each item |
first : |
flag to stop execution after a successful item |
user_data : |
user data |
| Returns : | the list of results |