Ticket #510: patch

libavcodec/h264.c

@@ -7487 +7487 @@
         if((state&0xFFFFFF00) == 0x100 && (state&0xFFFFFF1F) != 0x107 && (state&0xFFFFFF1F) != 0x108 && (state&0xFFFFFF1F) != 0x109){
             if(has_sps){
                 while(i>4 && buf[i-5]==0) i--;
-                return i-4;
+
+                i -= 4;
+
+                // XXX Keep the size aligned on a boundary of 2 bytes.
+                if (i % 2)
+                    i++;
+
+                return i;
             }
         }
         if (i<buf_size)