vsp-lib: Don't pass WPF index and format to comparison functions

The information is already known to the pipeline configuration
functions, store it internally and reuse it instead of having to pass it
explicitly.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/tests/vsp-unit-test-0004.sh b/tests/vsp-unit-test-0004.sh
index fd49af1..12a2545 100755
--- a/tests/vsp-unit-test-0004.sh
+++ b/tests/vsp-unit-test-0004.sh
@@ -21,7 +21,7 @@ test_histogram() {
 	$vsp_runner $mdev input 0 $format &
 	$vsp_runner $mdev output 0 $format
 
-	result=$(compare_histograms $format 0)
+	result=$(compare_histograms)
 
 	test_complete $result
 }