fixed problem for SWFs without an END tag

diff --git a/src/swfbbox.c b/src/swfbbox.c
index 138ad1e..9fbacaf 100644 (file)
--- a/src/swfbbox.c
+++ b/src/swfbbox.c
@@ -543,7 +543,7 @@ static SRECT getMovieClipBBox(TAG*tag)
 
     memset(&movieSize,0,sizeof(SRECT));
 
-    while (tag->id != ST_END) {
+    while (tag && tag->id != ST_END) {
        if (swf_isPlaceTag(tag)) {
            if(hasid(tag)) {
                depth2id[swf_GetDepth(tag)] = swf_GetPlaceID(tag);