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formatter: Implement the GESExtractable interface

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Make it a GInitially unowned, GESProject will become the owner
This commit is contained in:
Thibault Saunier 2012-09-24 22:24:42 +02:00
parent 346a01b4eb
commit a89683f06a
2 changed files with 75 additions and 3 deletions
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74
ges/ges-formatter.c
View file

@ -51,7 +51,11 @@
#include "ges-internal.h"
#include "ges.h"
G_DEFINE_ABSTRACT_TYPE (GESFormatter, ges_formatter, G_TYPE_OBJECT);
static void ges_extractable_interface_init (GESExtractableInterface * iface);
G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GESFormatter, ges_formatter,
G_TYPE_INITIALLY_UNOWNED, G_IMPLEMENT_INTERFACE (GES_TYPE_EXTRACTABLE,
ges_extractable_interface_init));
struct _GESFormatterPrivate
{
@ -71,6 +75,74 @@ enum
LAST_SIGNAL
};
/* Utils */
static GESFormatterClass *
ges_formatter_find_for_uri (const gchar * uri)
{
GType *formatters;
guint n_formatters, i;
GESFormatterClass *class, *ret = NULL;
formatters = g_type_children (GES_TYPE_FORMATTER, &n_formatters);
for (i = 0; i < n_formatters; i++) {
class = g_type_class_ref (formatters[i]);
if (class->can_load_uri (uri, NULL)) {
ret = class;
break;
}
g_type_class_unref (class);
}
g_free (formatters);
return ret;
}
/* GESExtractable implementation */
static gchar *
extractable_check_id (GType type, const gchar * id)
{
if (gst_uri_is_valid (id))
return g_strdup (id);
return NULL;
}
static gchar *
extractable_get_id (GESExtractable * self)
{
GESAsset *asset;
if (!(asset = ges_extractable_get_asset (self)))
return NULL;
return g_strdup (ges_asset_get_id (asset));
}
static GType
extractable_get_real_extractable_type (GType type, const gchar * id)
{
GType real_type = G_TYPE_NONE;
GESFormatterClass *class;
class = ges_formatter_find_for_uri (id);
if (class) {
real_type = G_OBJECT_CLASS_TYPE (class);
g_type_class_unref (class);
}
return real_type;
}
static void
ges_extractable_interface_init (GESExtractableInterface * iface)
{
iface->check_id = (GESExtractableCheckId) extractable_check_id;
iface->get_id = extractable_get_id;
iface->get_real_extractable_type = extractable_get_real_extractable_type;
}
static void
ges_formatter_class_init (GESFormatterClass * klass)
{

4
ges/ges-formatter.h
View file

@ -50,7 +50,7 @@ typedef struct _GESFormatterPrivate GESFormatterPrivate;
*/
struct _GESFormatter {
GObject parent;
GInitiallyUnowned parent;
/*< private >*/
GESFormatterPrivate *priv;
@ -114,7 +114,7 @@ typedef gboolean (*GESFormatterSaveToURIMethod) (GESFormatter *formatter,
*/
struct _GESFormatterClass {
GObjectClass parent_class;
GInitiallyUnownedClass parent_class;
GESFormatterCanLoadURIMethod can_load_uri;
GESFormatterCanSaveURIMethod can_save_uri;