configure.ac: Check for libdvdnav to build resindvd.

Original commit message from CVS:
* configure.ac:
Check for libdvdnav to build resindvd.
* ext/Makefile.am:
* ext/resindvd/Makefile.am:
* ext/resindvd/gstmpegdefs.h:
* ext/resindvd/gstmpegdemux.c:
* ext/resindvd/gstmpegdemux.h:
* ext/resindvd/gstmpegdesc.c:
* ext/resindvd/gstmpegdesc.h:
* ext/resindvd/gstpesfilter.c:
* ext/resindvd/gstpesfilter.h:
* ext/resindvd/plugin.c:
* ext/resindvd/resin-play:
* ext/resindvd/resindvdbin.c:
* ext/resindvd/resindvdbin.h:
* ext/resindvd/resindvdsrc.c:
* ext/resindvd/resindvdsrc.h:
* ext/resindvd/rsnaudiomunge.c:
* ext/resindvd/rsnaudiomunge.h:
* ext/resindvd/rsnbasesrc.c:
* ext/resindvd/rsnbasesrc.h:
* ext/resindvd/rsnpushsrc.c:
* ext/resindvd/rsnpushsrc.h:
* ext/resindvd/rsnstreamselector.c:
* ext/resindvd/rsnstreamselector.h:
First commit of DVD-Video playback component 'rsndvdbin'
and helper elements.
Use --enable-experimental for now, but feel free to give it a
try using the resin-play script.
* gst/dvdspu/gstdvdspu.c:
Add some extra guards for malformed events.

1 files changed, 10 insertions, 0 deletions

diff --git a/gst/dvdspu/gstdvdspu.c b/gst/dvdspu/gstdvdspu.c
index c16743bd..680d9101 100644
--- a/gst/dvdspu/gstdvdspu.c
+++ b/gst/dvdspu/gstdvdspu.c
@@ -395,12 +395,22 @@ gst_dvd_spu_video_event (GstPad * pad, GstEvent * event)
       const GstStructure *structure = gst_event_get_structure (event);
       const char *event_type;
 
+      if (structure == NULL) {
+        res = gst_pad_event_default (pad, event);
+        break;
+      }
+
       if (!gst_structure_has_name (structure, "application/x-gst-dvd")) {
         res = gst_pad_event_default (pad, event);
         break;
       }
 
       event_type = gst_structure_get_string (structure, "event");
+      if (event_type == NULL) {
+        res = gst_pad_event_default (pad, event);
+        break;
+      }
+
       GST_DEBUG_OBJECT (dvdspu,
           "DVD event of type %s on video pad", event_type);