libhb: enable burn-in of all supported text subtitle formats

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@6141 b64f7644-9d1e-0410-96f1-a4d463321fa5

1 files changed, 6 insertions, 3 deletions

diff --git a/libhb/stream.c b/libhb/stream.c
index a48d339f1..b133dda78 100644
--- a/libhb/stream.c
+++ b/libhb/stream.c
@@ -5228,9 +5228,12 @@ static void add_ffmpeg_subtitle( hb_title_t *title, hb_stream_t *stream, int id
     strncpy( subtitle->iso639_2, language->iso639_2, 4 );
 
     // Copy the extradata for the subtitle track
-    subtitle->extradata = malloc( codec->extradata_size );
-    memcpy( subtitle->extradata, codec->extradata, codec->extradata_size );
-    subtitle->extradata_size = codec->extradata_size;
+    if (codec->extradata != NULL)
+    {
+        subtitle->extradata = malloc( codec->extradata_size );
+        memcpy( subtitle->extradata, codec->extradata, codec->extradata_size );
+        subtitle->extradata_size = codec->extradata_size;
+    }
 
     subtitle->track = id;
     hb_list_add(title->list_subtitle, subtitle);