static GStaticRWLock lock = G_STATIC_RW_LOCK_INIT;
void
-_gst_meta_init (void)
+_priv_gst_meta_initialize (void)
{
metainfo = g_hash_table_new (g_str_hash, g_str_equal);
}
/**
- * gst_meta_register_info:
- * @info: a #GstMetaInfo
+ * gst_meta_register:
+ * @api: the name of the #GstMeta API
+ * @impl: the name of the #GstMeta implementation
+ * @size: the size of the #GstMeta structure
+ * @init_func: a #GstMetaInitFunction
+ * @free_func: a #GstMetaFreeFunction
+ * @copy_func: a #GstMetaCopyFunction
+ * @transform_func: a #GstMetaTransformFunction
*
- * Register a #GstMetaInfo. The same @info can be retrieved later with
- * gst_meta_get_info() by using @impl as the key.
+ * Register a new #GstMeta implementation.
*
- * Returns: a #GstMetaInfo that can be used to access metadata.
+ * The same @info can be retrieved later with gst_meta_get_info() by using
+ * @impl as the key.
+ *
+ * Returns: (transfer none): a #GstMetaInfo that can be used to access metadata.
*/
const GstMetaInfo *
gst_meta_register (const gchar * api, const gchar * impl, gsize size,
GstMetaInitFunction init_func, GstMetaFreeFunction free_func,
- GstMetaCopyFunction copy_func,
- GstMetaTransformFunction transform_func,
- GstMetaSerializeFunction serialize_func,
- GstMetaDeserializeFunction deserialize_func)
+ GstMetaCopyFunction copy_func, GstMetaTransformFunction transform_func)
{
GstMetaInfo *info;
info = g_slice_new (GstMetaInfo);
info->api = g_quark_from_string (api);
- info->impl = g_quark_from_string (impl);
+ info->type = g_pointer_type_register_static (impl);
info->size = size;
info->init_func = init_func;
info->free_func = free_func;
info->copy_func = copy_func;
info->transform_func = transform_func;
- info->serialize_func = serialize_func;
- info->deserialize_func = deserialize_func;
GST_DEBUG ("register \"%s\" implementing \"%s\" of size %" G_GSIZE_FORMAT,
api, impl, size);
* gst_meta_get_info:
* @impl: the name
*
- * Lookup a previously registered meta info structure by its implementor name
+ * Lookup a previously registered meta info structure by its implementation name
* @impl.
*
- * Returns: a #GstMetaInfo with @impl or #NULL when no such metainfo
- * exists.
+ * Returns: (transfer none): a #GstMetaInfo with @impl, or #NULL when no such
+ * metainfo exists.
*/
const GstMetaInfo *
gst_meta_get_info (const gchar * impl)
return info;
}
-
-/* Timing metadata */
-static void
-meta_timing_copy (GstBuffer * copybuf, GstMetaTiming * meta,
- GstBuffer * buffer, gsize offset, gsize size)
-{
- GstMetaTiming *timing;
-
- GST_DEBUG ("trans called from buffer %p to %p, meta %p, %u-%u", buffer,
- copybuf, meta, offset, size);
-
- timing = gst_buffer_add_meta_timing (copybuf);
- if (offset == 0) {
- /* same offset, copy timestamps */
- timing->pts = meta->pts;
- timing->dts = meta->dts;
- if (size == gst_buffer_get_size (buffer)) {
- /* same size, copy duration */
- timing->duration = meta->duration;
- } else {
- /* else clear */
- timing->duration = GST_CLOCK_TIME_NONE;
- }
- } else {
- timing->pts = -1;
- timing->dts = -1;
- timing->duration = -1;
- }
- timing->clock_rate = meta->clock_rate;
-}
-
-const GstMetaInfo *
-gst_meta_timing_get_info (void)
-{
- static const GstMetaInfo *meta_info = NULL;
-
- if (meta_info == NULL) {
- meta_info = gst_meta_register ("GstMetaTiming", "GstMetaTiming",
- sizeof (GstMetaTiming),
- (GstMetaInitFunction) NULL,
- (GstMetaFreeFunction) NULL,
- (GstMetaCopyFunction) meta_timing_copy,
- (GstMetaTransformFunction) NULL,
- (GstMetaSerializeFunction) NULL, (GstMetaDeserializeFunction) NULL);
- }
- return meta_info;
-}