video: Don't corrupt caption GstMeta

the meta initialization function is provided *after* the base implementation
fields have been set so do *NOT* reset them otherwise it would result
in corrupted GstMeta.

Instead explicitely set our fields to the default values we actually want.

diff --git a/gst-libs/gst/video/video-anc.c b/gst-libs/gst/video/video-anc.c
index eb1c18681de2b247cc1f90c028000e7b1675e25d..32d075ee1fd04ef074a844074a5649c298380d1c 100644 (file)
--- a/gst-libs/gst/video/video-anc.c
+++ b/gst-libs/gst/video/video-anc.c
@@ -458,8 +458,9 @@ gst_video_caption_meta_init (GstMeta * meta, gpointer params,
 {
   GstVideoCaptionMeta *emeta = (GstVideoCaptionMeta *) meta;
 
-  memset (emeta, 0, sizeof (GstVideoCaptionMeta));
   emeta->caption_type = GST_VIDEO_CAPTION_TYPE_UNKNOWN;
+  emeta->data = NULL;
+  emeta->size = 0;
 
   return TRUE;
 }