respect filename:literal define for both input and output filenames

Author: Cristy

magick/image.c

@@ -2759,6 +2759,9 @@ MagickExport MagickBooleanType SetImageInfo(ImageInfo *image_info,
     *q,
     subimage[MaxTextExtent];
 
+  const char
+    *p;
+
   const MagicInfo
     *magic_info;
 
@@ -2774,9 +2777,6 @@ MagickExport MagickBooleanType SetImageInfo(ImageInfo *image_info,
   MagickBooleanType
     status;
 
-  const char
-    *p;
-
   ssize_t
     count;
 
@@ -2791,6 +2791,8 @@ MagickExport MagickBooleanType SetImageInfo(ImageInfo *image_info,
   if (IsEventLogging() != MagickFalse)
     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
       image_info->filename);
+  if (IsStringTrue(GetImageOption(image_info,"filename:literal")) != MagickFalse)
+    return(MagickTrue);
   *subimage='\0';
   GetPathComponent(image_info->filename,SubimagePath,subimage);
   if (*subimage != '\0')