gst-plugins-good: deinterlace: make interlacedness test deterministic

[Vincent Penquerc'h]

Module: gst-plugins-good
Branch: master
Commit: 4d51c68fc0d9c43764fba3616a74e19720742da4
URL:    http://cgit.freedesktop.org/gstreamer/gst-plugins-good/commit/?id=4d51c68fc0d9c43764fba3616a74e19720742da4

Author: Vincent Penquerc'h <vincent.penquerch at collabora.co.uk>
Date:   Mon Jan 16 12:13:50 2012 +0000

deinterlace: make interlacedness test deterministic

If the interlaced flag is not present in the caps, we assume the
data is not interlaced, instead of leaving the boolean uninitialized.

---

 gst/deinterlace/gstdeinterlace.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/gst/deinterlace/gstdeinterlace.c b/gst/deinterlace/gstdeinterlace.c
index 6e71bce..373fb20 100644
--- a/gst/deinterlace/gstdeinterlace.c
+++ b/gst/deinterlace/gstdeinterlace.c
@@ -1000,9 +1000,10 @@ gst_deinterlace_get_interlacing_method (const GstCaps * caps)
   GstDeinterlaceInterlacingMethod method = 0;
   gboolean interlaced;
 
-  /* check interlaced cap */
-  gst_structure_get_boolean (gst_caps_get_structure (caps, 0), "interlaced",
-      &interlaced);
+  /* check interlaced cap, defaulting to FALSE */
+  if (!gst_structure_get_boolean (gst_caps_get_structure (caps, 0),
+          "interlaced", &interlaced))
+    interlaced = FALSE;
 
   method =
       interlaced ? GST_DEINTERLACE_INTERLACED : GST_DEINTERLACE_PROGRESSIVE;