diff --git a/tests/lavfi-regression.sh b/tests/lavfi-regression.sh
index 8f47ee4f75..1bb0dfe477 100755
--- a/tests/lavfi-regression.sh
+++ b/tests/lavfi-regression.sh
@@ -38,12 +38,12 @@ do_lavfi "fade"               "fade=in:5:15,fade=out:30:15"
 do_lavfi "null"               "null"
 do_lavfi "overlay"            "split[m],scale=88:72,pad=96:80:4:4[o2];[m]fifo,[o2]overlay=240:16"
 do_lavfi "pad"                "pad=iw*1.5:ih*1.5:iw*0.3:ih*0.2"
-do_lavfi "pp"                 "mp=pp=de/tn/l5/al"
-do_lavfi "pp2"                "mp=pp=fq:16/fa/lb"
-do_lavfi "pp3"                "mp=pp=fq:8/ac/li"
-do_lavfi "pp4"                "mp=pp=ci"
+do_lavfi "pp"                 "mp=pp=be/de/tn/l5/al"
+do_lavfi "pp2"                "mp=pp=be/fq:16/fa/lb"
+do_lavfi "pp3"                "mp=pp=be/fq:8/ac/li"
+do_lavfi "pp4"                "mp=pp=be/ci"
 do_lavfi "pp5"                "mp=pp=md"
-do_lavfi "pp6"                "mp=pp=fd"
+do_lavfi "pp6"                "mp=pp=be/fd"
 do_lavfi "scale200"           "scale=200:200"
 do_lavfi "scale500"           "scale=500:500"
 do_lavfi "select"             "select=not(eq(mod(n\,2)\,0)+eq(mod(n\,3)\,0))"
diff --git a/tests/ref/lavfi/pp b/tests/ref/lavfi/pp
index 4d26254723..554a0b2540 100644
--- a/tests/ref/lavfi/pp
+++ b/tests/ref/lavfi/pp
@@ -1 +1 @@
-pp                  3ddfb037bb1f941d6526a2473a191677
+pp                  520803fe1843d384b852ff9750e815c9
diff --git a/tests/ref/lavfi/pp2 b/tests/ref/lavfi/pp2
index 2694bfae9d..4517f3caca 100644
--- a/tests/ref/lavfi/pp2
+++ b/tests/ref/lavfi/pp2
@@ -1 +1 @@
-pp2                 79e3480bfc7561f6a175138727319999
+pp2                 1a34413c53356a5fc4f891e50f8400c8
diff --git a/tests/ref/lavfi/pp3 b/tests/ref/lavfi/pp3
index ea406b985e..3c64c1c599 100644
--- a/tests/ref/lavfi/pp3
+++ b/tests/ref/lavfi/pp3
@@ -1 +1 @@
-pp3                 d5feed74a102bf241cd57a3784eda8c0
+pp3                 192df08ba93baa48d90551509b64615c
diff --git a/tests/ref/lavfi/pp4 b/tests/ref/lavfi/pp4
index ebbc69286e..88f8ed07e6 100644
--- a/tests/ref/lavfi/pp4
+++ b/tests/ref/lavfi/pp4
@@ -1 +1 @@
-pp4                 9584bae9fe344e2ffa9d73a8370e8b11
+pp4                 23b157b7a658800954f095f950f18165
diff --git a/tests/ref/lavfi/pp6 b/tests/ref/lavfi/pp6
index b56d971514..9547ac7ee5 100644
--- a/tests/ref/lavfi/pp6
+++ b/tests/ref/lavfi/pp6
@@ -1 +1 @@
-pp6                 4a2f70e09ef52a48df2e5be8b8e2859f
+pp6                 9ace50ed384e9a085965c52366e9cd6f