formatting, another MCU test

libvips/foreign/vips2jpeg.c

@@ -613,6 +613,7 @@ write_vips( Write *write, int qfac, const char *profile,
 	 */
 	if( restart_interval > 0 )
 		write->cinfo.restart_interval = restart_interval;
+
 #ifdef HAVE_JPEG_EXT_PARAMS
 	/* Apply trellis quantisation to each 8x8 block. Implies 
 	 * "optimize_coding".
@@ -853,7 +854,7 @@ vips__jpeg_write_target( VipsImage *in, VipsTarget *target,
 	gboolean strip, gboolean trellis_quant,
 	gboolean overshoot_deringing, gboolean optimize_scans,
 	int quant_table, VipsForeignSubsample subsample_mode,
-	int restart_interval)
+	int restart_interval )
 {
 	Write *write;
 

test/test-suite/test_foreign.py

@@ -303,6 +303,12 @@ class TestForeign:
         assert len(r10) > len(r0)
         assert len(r2) > len(r10)
 
+        # we should be able to reload jpegs with extra MCU markers 
+        im0 = pyvips.Image.jpegload_buffer(r0)
+        im10 = pyvips.Image.jpegload_buffer(r10)
+        assert im0.avg() == im10.avg()
+
+
     @skip_if_no("jpegload")
     def test_truncated(self):
         # This should open (there's enough there for the header)