[gegl] operations/common/gblur-1d: Explicitly set the input format

[Debarshi Ray <debarshir src gnome org>]

commit 2550d9ae833b6984aeb5c33c1dfe42959a1b1274
Author: Debarshi Ray <debarshir gnome org>
Date:   Mon Oct 30 11:49:56 2017 +0100

    operations/common/gblur-1d: Explicitly set the input format
    
    The input format used to be implicitly set while reading the source
    buffer during processing. Make this explicit by setting the format
    during "prepare", so that the code is easier to read.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=789642

 operations/common/gblur-1d.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/operations/common/gblur-1d.c b/operations/common/gblur-1d.c
index ee709dd..d340fb6 100644
--- a/operations/common/gblur-1d.c
+++ b/operations/common/gblur-1d.c
@@ -630,6 +630,7 @@ gegl_gblur_1d_prepare (GeglOperation *operation)
         format = "YaA float";
     }
 
+  gegl_operation_set_format (operation, "input", babl_format (format));
   gegl_operation_set_format (operation, "output", babl_format (format));
 }