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lv2: ensure uniqe property names

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Copy and adjust the code from ladspa plugin to ensure unique gobject property
names.
This commit is contained in:
Stefan Kost 2011-05-25 23:13:17 +03:00
parent 7751dbb8e1
commit 579188d436
1 changed files with 30 additions and 9 deletions
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39
ext/lv2/gstlv2.c
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@ -382,9 +382,38 @@ static gchar *
gst_lv2_class_get_param_name (GstLV2Class * klass, SLV2Port port)
{
SLV2Plugin lv2plugin = klass->plugin;
gchar *ret;
return g_strdup (slv2_value_as_string (slv2_port_get_symbol (lv2plugin,
ret = g_strdup (slv2_value_as_string (slv2_port_get_symbol (lv2plugin,
port)));
/* this is the same thing that param_spec_* will do */
g_strcanon (ret, G_CSET_A_2_Z G_CSET_a_2_z G_CSET_DIGITS "-", '-');
/* satisfy glib2 (argname[0] must be [A-Za-z]) */
if (!((ret[0] >= 'a' && ret[0] <= 'z') || (ret[0] >= 'A' && ret[0] <= 'Z'))) {
gchar *tempstr = ret;
ret = g_strconcat ("param-", ret, NULL);
g_free (tempstr);
}
/* check for duplicate property names */
if (g_object_class_find_property (G_OBJECT_CLASS (klass), ret)) {
gint n = 1;
gchar *nret = g_strdup_printf ("%s-%d", ret, n++);
while (g_object_class_find_property (G_OBJECT_CLASS (klass), nret)) {
g_free (nret);
nret = g_strdup_printf ("%s-%d", ret, n++);
}
g_free (ret);
ret = nret;
}
GST_DEBUG ("built property name '%s' from port name '%s'", ret,
slv2_value_as_string (slv2_port_get_symbol (lv2plugin, port)));
return ret;
}
static gchar *
@ -408,14 +437,6 @@ gst_lv2_class_get_param_spec (GstLV2Class * klass, gint portnum)
nick = gst_lv2_class_get_param_nick (klass, port);
name = gst_lv2_class_get_param_name (klass, port);
g_strcanon (name, G_CSET_A_2_Z G_CSET_a_2_z G_CSET_DIGITS "-", '-');
if (!((name[0] >= 'a' && name[0] <= 'z') || (name[0] >= 'A'
&& name[0] <= 'Z'))) {
gchar *tempstr = name;
name = g_strconcat ("param-", name, NULL);
g_free (tempstr);
}
GST_DEBUG ("%s trying port %s : %s",
slv2_value_as_string (slv2_plugin_get_uri (lv2plugin)), name, nick);