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protection: implement meta transform function

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Copy the GstMeta contents over to the new buffer.

https://bugzilla.gnome.org/show_bug.cgi?id=749590
This commit is contained in:
Philippe Normand 2015-05-19 18:58:11 +02:00 committed by Tim-Philipp Müller
parent 6d78d32d51
commit ee40730558
1 changed files with 23 additions and 2 deletions
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25
gst/gstprotection.c
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@ -84,6 +84,28 @@ gst_protection_meta_free (GstMeta * meta, GstBuffer * buffer)
gst_structure_free (protection_meta->info);
}
static gboolean
gst_protection_meta_transform (GstBuffer * transbuf, GstMeta * meta,
GstBuffer * buffer, GQuark type, gpointer data)
{
GstProtectionMeta *protection_meta = (GstProtectionMeta *) meta;
if (GST_META_TRANSFORM_IS_COPY (type)) {
GstMetaTransformCopy *copy = data;
if (!copy->region) {
/* only copy if the complete data is copied as well */
gst_buffer_add_protection_meta (transbuf,
gst_structure_copy (protection_meta->info));
} else {
return FALSE;
}
} else {
/* transform type not supported */
return FALSE;
}
return TRUE;
}
const GstMetaInfo *
gst_protection_meta_get_info (void)
{
@ -93,8 +115,7 @@ gst_protection_meta_get_info (void)
const GstMetaInfo *meta =
gst_meta_register (GST_PROTECTION_META_API_TYPE, "GstProtectionMeta",
sizeof (GstProtectionMeta), gst_protection_meta_init,
gst_protection_meta_free,
(GstMetaTransformFunction) NULL);
gst_protection_meta_free, gst_protection_meta_transform);
g_once_init_leave (&protection_meta_info, meta);
}