Explicitly set image format in CustomStreamToImage()

diff --git a/MagickCore/blob.c b/MagickCore/blob.c
index cb5b53b15f3bc35113c2e8406665236cefb5c4fa..a124baa62c39e664ba9bb2e3948bce5bbaac68eb 100644 (file)
--- a/MagickCore/blob.c
+++ b/MagickCore/blob.c
@@ -768,6 +768,8 @@ MagickExport Image *CustomStreamToImage(const ImageInfo *image_info,
         Native blob support for this image format or SetImageInfo changed the
         blob to a file.
       */
+      (void) FormatLocaleString(blob_info->filename,MagickPathExtent,"%s:%s",
+        blob_info->magick,image_info->filename);
       image=ReadImage(blob_info,exception);
       if (image != (Image *) NULL)
         (void) CloseBlob(image);