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value: add GstTagList serialisation/deserialisation

Browse source 
So we can serialise/deserialise taglists inside structures,
which used to work automagically before because GstTagList
was just a typedef to GstStructure (same for the GType),
but now that it's a separate GType we need to register
explicit functions for this.

Helps with GDP stuff in pipelines/streamheader tests.
This commit is contained in:
Tim-Philipp Müller 2012-07-20 00:49:28 +01:00
parent 80f94703f9
commit ffdefd7720
2 changed files with 50 additions and 0 deletions
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2
gst/gststructure.c
View file

@ -1681,6 +1681,8 @@ gst_structure_get_abbrs (gint * n_abbrs)
{"datetime", GST_TYPE_DATE_TIME}
,
{"bitmask", GST_TYPE_BITMASK}
,
{"taglist", GST_TYPE_TAG_LIST}
};
_num = G_N_ELEMENTS (dyn_abbrs);
/* permanently allocate and copy the array now */

48
gst/gstvalue.c
View file

@ -1958,6 +1958,43 @@ gst_value_deserialize_structure (GValue * dest, const gchar * s)
return FALSE;
}
/**************
* GstTagList *
**************/
static gboolean
gst_value_deserialize_tag_list (GValue * dest, const gchar * s)
{
GstTagList *taglist;
if (*s != '"') {
taglist = gst_tag_list_new_from_string (s);
} else {
gchar *str = gst_string_unwrap (s);
if (G_UNLIKELY (!str))
return FALSE;
taglist = gst_tag_list_new_from_string (str);
g_free (str);
}
if (G_LIKELY (taglist != NULL)) {
g_value_take_boxed (dest, taglist);
return TRUE;
}
return FALSE;
}
static gchar *
gst_value_serialize_tag_list (const GValue * value)
{
GstTagList *taglist = g_value_get_boxed (value);
return gst_string_take_and_wrap (gst_tag_list_to_string (taglist));
}
/*************
* GstBuffer *
*************/
@ -5806,6 +5843,17 @@ _priv_gst_value_initialize (void)
gst_value.type = GST_TYPE_STRUCTURE;
gst_value_register (&gst_value);
}
{
static GstValueTable gst_value = {
0,
NULL,
gst_value_serialize_tag_list,
gst_value_deserialize_tag_list,
};
gst_value.type = GST_TYPE_TAG_LIST;
gst_value_register (&gst_value);
}
{
static GstValueTable gst_value = {
0,