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Create type find function for gdk_pixbuf

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Original commit message from CVS:
Create type find function for gdk_pixbuf
This commit is contained in:
David Schleef 2003-10-29 05:40:48 +00:00
parent dc555da5f8
commit c19bc2bfe1
1 changed files with 36 additions and 0 deletions
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36
ext/gdk_pixbuf/gstgdkpixbuf.c
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@ -107,6 +107,7 @@ static void gst_gdk_pixbuf_get_property(GObject *object, guint prop_id,
GParamSpec *pspec);
static void gst_gdk_pixbuf_chain (GstPad *pad, GstData *_data);
static void gst_gdk_pixbuf_type_find (GstTypeFind *tf, gpointer ignore);
static GstElementClass *parent_class = NULL;
@ -365,6 +366,38 @@ gst_gdk_pixbuf_get_property (GObject *object, guint prop_id,
}
}
#define GST_GDK_PIXBUF_TYPE_FIND_SIZE 1024
static void
gst_gdk_pixbuf_type_find (GstTypeFind *tf, gpointer ignore)
{
guint8 *data;
GdkPixbufLoader *pixbuf_loader;
GdkPixbufFormat *format;
GError *error = NULL;
data = gst_type_find_peek (tf, 0, GST_GDK_PIXBUF_TYPE_FIND_SIZE);
if (data == NULL) return;
GST_DEBUG ("gst_gdk_pixbuf_type_find");
pixbuf_loader = gdk_pixbuf_loader_new();
gdk_pixbuf_loader_write (pixbuf_loader, data, GST_GDK_PIXBUF_TYPE_FIND_SIZE,
&error);
format = gdk_pixbuf_loader_get_format (pixbuf_loader);
if (format != NULL) {
gchar **mlist = gdk_pixbuf_format_get_mime_types(format);
gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM,
gst_caps_new ("gdk_pixbuf_type_find", mlist[0], NULL));
}
g_object_unref (G_OBJECT (pixbuf_loader));
}
/* entry point to initialize the plug-in
* initialize the plug-in itself
* register the element factories and pad templates
@ -386,6 +419,9 @@ plugin_init (GModule *module, GstPlugin *plugin)
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
gst_type_find_factory_register (plugin, "image/*", GST_ELEMENT_RANK_MARGINAL,
gst_gdk_pixbuf_type_find, NULL, GST_CAPS_ANY, NULL);
/* plugin initialisation succeeded */
return TRUE;
}