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query: make sure query is writable

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Make sure the Query is writable before executing the setters.
This commit is contained in:
Wim Taymans 2011-05-10 15:41:54 +02:00
parent 933446ec44
commit df4a8e2f23
1 changed files with 29 additions and 0 deletions
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29
gst/gstquery.c
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@ -845,6 +845,25 @@ gst_query_get_structure (GstQuery * query)
return GST_QUERY_STRUCTURE (query);
}
/**
* gst_query_writable_structure:
* @query: a #GstQuery
*
* Get the structure of a query.
*
* Returns: (transfer none): the #GstStructure of the query. The structure is
* still owned by the query and will therefore be freed when the query
* is unreffed.
*/
GstStructure *
gst_query_writable_structure (GstQuery * query)
{
g_return_val_if_fail (GST_IS_QUERY (query), NULL);
g_return_val_if_fail (gst_query_is_writable (query), NULL);
return GST_QUERY_STRUCTURE (query);
}
/**
* gst_query_new_seeking:
* @format: the default #GstFormat for the new query
@ -890,6 +909,7 @@ gst_query_set_seeking (GstQuery * query, GstFormat format,
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_SEEKING);
g_return_if_fail (gst_query_is_writable (query));
structure = GST_QUERY_STRUCTURE (query);
gst_structure_id_set (structure,
@ -988,6 +1008,7 @@ gst_query_set_formats (GstQuery * query, gint n_formats, ...)
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_FORMATS);
g_return_if_fail (gst_query_is_writable (query));
g_value_init (&list, GST_TYPE_LIST);
@ -1025,6 +1046,7 @@ gst_query_set_formatsv (GstQuery * query, gint n_formats,
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_FORMATS);
g_return_if_fail (gst_query_is_writable (query));
g_value_init (&list, GST_TYPE_LIST);
for (i = 0; i < n_formats; i++) {
@ -1152,6 +1174,7 @@ gst_query_set_buffering_percent (GstQuery * query, gboolean busy, gint percent)
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_BUFFERING);
g_return_if_fail (gst_query_is_writable (query));
g_return_if_fail (percent >= 0 && percent <= 100);
structure = GST_QUERY_STRUCTURE (query);
@ -1207,6 +1230,7 @@ gst_query_set_buffering_stats (GstQuery * query, GstBufferingMode mode,
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_BUFFERING);
g_return_if_fail (gst_query_is_writable (query));
structure = GST_QUERY_STRUCTURE (query);
gst_structure_id_set (structure,
@ -1273,6 +1297,7 @@ gst_query_set_buffering_range (GstQuery * query, GstFormat format,
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_BUFFERING);
g_return_if_fail (gst_query_is_writable (query));
structure = GST_QUERY_STRUCTURE (query);
gst_structure_id_set (structure,
@ -1345,6 +1370,7 @@ gst_query_add_buffering_range (GstQuery * query, gint64 start, gint64 stop)
GstStructure *structure;
g_return_val_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_BUFFERING, FALSE);
g_return_val_if_fail (gst_query_is_writable (query), FALSE);
if (G_UNLIKELY (start >= stop))
return FALSE;
@ -1493,6 +1519,7 @@ gst_query_set_uri (GstQuery * query, const gchar * uri)
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_URI);
g_return_if_fail (gst_query_is_writable (query));
g_return_if_fail (gst_uri_is_valid (uri));
structure = GST_QUERY_STRUCTURE (query);
@ -1586,6 +1613,7 @@ gst_query_set_allocation_params (GstQuery * query, guint size,
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_ALLOCATION);
g_return_if_fail (gst_query_is_writable (query));
structure = GST_QUERY_STRUCTURE (query);
gst_structure_id_set (structure,
@ -1642,6 +1670,7 @@ gst_query_add_allocation_meta (GstQuery * query, const gchar * api)
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_ALLOCATION);
g_return_if_fail (gst_query_is_writable (query));
structure = GST_QUERY_STRUCTURE (query);
value = gst_structure_id_get_value (structure, GST_QUARK (META));