Stupid one liner.  Pushing now because when the RM tells me to, I'll be asleep.  Note the mixed width/height:

diff --git a/ext/theora/gsttheoradec.c b/ext/theora/gsttheoradec.c
index 6eef472..ad23bd9 100644
--- a/ext/theora/gsttheoradec.c
+++ b/ext/theora/gsttheoradec.c
@@ -1004,7 +1004,7 @@ theora_handle_image (GstTheoraDec * dec, th_ycbcr_buffer buf, GstBuffer ** out)
 
   for (plane = 0; plane < 3; plane++) {
     width = gst_video_format_get_component_width (format, plane, dec->width);
-    height = gst_video_format_get_component_width (format, plane, dec->height);
+    height = gst_video_format_get_component_height (format, plane, dec->height);
     stride = gst_video_format_get_row_stride (format, plane, dec->width);
 
     dest =