From 98bb7d0c2e82ab0ec2c6237ba6472e253ddbf31c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
Date: Sun, 19 Apr 2020 18:29:18 +0300
Subject: [PATCH] video-anc: Register an init function for Bar meta

The init function is mandatory and we keep around uninitialized memory
otherwise.

Fixes https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/issues/747
---
 gst-libs/gst/video/video-anc.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/gst-libs/gst/video/video-anc.c b/gst-libs/gst/video/video-anc.c
index 102240ba00..4b0a105b29 100644
--- a/gst-libs/gst/video/video-anc.c
+++ b/gst-libs/gst/video/video-anc.c
@@ -1242,6 +1242,20 @@ gst_video_bar_meta_api_get_type (void)
   return type;
 }
 
+static gboolean
+gst_video_bar_meta_init (GstMeta * meta, gpointer params, GstBuffer * buffer)
+{
+  GstVideoBarMeta *emeta = (GstVideoBarMeta *) meta;
+
+  emeta->field = 0;
+  emeta->is_letterbox = FALSE;
+  emeta->bar_data1 = 0;
+  emeta->bar_data2 = 0;
+
+  return TRUE;
+}
+
+
 const GstMetaInfo *
 gst_video_bar_meta_get_info (void)
 {
@@ -1251,7 +1265,7 @@ gst_video_bar_meta_get_info (void)
     const GstMetaInfo *mi = gst_meta_register (GST_VIDEO_BAR_META_API_TYPE,
         "GstVideoBarMeta",
         sizeof (GstVideoBarMeta),
-        NULL,
+        gst_video_bar_meta_init,
         NULL,
         NULL);
     g_once_init_leave ((GstMetaInfo **) & meta_info, (GstMetaInfo *) mi);