Ticket #961: mpeg12.diff

libs/libavcodec/mpeg12.c

@@ -2188 +2188 @@
     const uint8_t *buf_ptr= *pbuf_ptr;
 
     buf_ptr++; //gurantees that -1 is within the array
-    buf_end -= 2; // gurantees that +2 is within the array
+    buf_end -= 3; // gurantees that +3 is within the array
 
     while (buf_ptr < buf_end) {
         if(*buf_ptr==0){
@@ -2202 +2202 @@
         }
         buf_ptr += 2;
     }
-    buf_end += 2; //undo the hack above
+    buf_end += 3; //undo the hack above
     
     *pbuf_ptr = buf_end;
     return -1;