diff --git a/funcs/qsortrgb.c b/funcs/qsortrgb.c
index 811f97d..6a1a96a 100644
--- a/funcs/qsortrgb.c
+++ b/funcs/qsortrgb.c
@@ -58,16 +58,16 @@ int		x, y, szimg;
 pix		*ppix, *ptr;
 float		rgb[3];
 
-// #if DEBUG_LEVEL
+#if DEBUG_LEVEL
 fprintf(stderr, ">>> %s ( %p %p %d )\n", __func__, psrc, pdst, notused);
-// #endif
+#endif
 
 szimg = pdst->width * pdst->height;
 fprintf(stderr, "%s : %d pixels\n", __func__, szimg);
 
 ppix = calloc(szimg, sizeof(pix));
 
-ptr = ppix;		/* mobile pointer */
+ptr = ppix;				/* mobile pointer */
 for (y=0; y<psrc->height; y++) {
 	for (x=0; x<psrc->width; x++) {
 
@@ -84,7 +84,7 @@ for (y=0; y<psrc->height; y++) {
 
 qsort(ppix, szimg, sizeof(pix), compare_b);
 
-ptr = ppix;		/* mobile pointer */
+ptr = ppix;				/* mobile pointer */
 for (y=0; y<psrc->height; y++) {
 	for (x=0; x<psrc->width; x++) {
 
diff --git a/funcs/t.c b/funcs/t.c
index 8e733c3..d7d543b 100644
--- a/funcs/t.c
+++ b/funcs/t.c
@@ -19,8 +19,6 @@ float		global_fvalue;
  *	nouveau 7 octobre 2020 pendant sonoptic
  */
 
-// 
-
 int essai_qsort_rgb(char *infile)
 {
 FloatImg	src, dst;
diff --git a/funcs/vroum.sh b/funcs/vroum.sh
index 4d3949b..d0bf7ce 100755
--- a/funcs/vroum.sh
+++ b/funcs/vroum.sh
@@ -6,7 +6,7 @@ out=out.fimg
 maxi=99
 W="640"
 H="480"
-grabopt=" -s 640x480 -v -p 0 -n 100 -c cos01 "
+grabopt=" -s 640x480 -v -p 0 -n 500 -c cos01 "
 
 mkdir /tmp/V
 
@@ -15,12 +15,12 @@ G=$(printf "%dx%d+0+0" $W $H)
 for foo in $(seq 0 $maxi)
 do
 
-	echo
+	echo ; echo
 
 	grabvidseq -$grabopt -o $src
 
 	fval=$(echo "$foo / $maxi" | bc -l)
-	./t -k $fval -v qsortrgb $src
+	./t -k $fval  qsortrgb $src
 	echo $foo ' = ' $fval
 
 	dst=$(printf "/tmp/V/%03d.png" $foo)