From eaa1c038a2f0e3dd1a9409694e27613284bd9f93 Mon Sep 17 00:00:00 2001
From: DarthSim <darthsim@gmail.com>
Date: Mon, 7 Feb 2022 16:33:09 +0600
Subject: [PATCH] Fix AVIF speed

---
 vips/vips.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/vips/vips.c b/vips/vips.c
index d409ae10..d6639923 100644
--- a/vips/vips.c
+++ b/vips/vips.c
@@ -620,7 +620,7 @@ vips_avifsave_go(VipsImage *in, void **buf, size_t *len, int quality, int speed)
     "Q", quality,
     "compression", VIPS_FOREIGN_HEIF_COMPRESSION_AV1,
   #if VIPS_SUPPORT_AVIF_EFFORT
-    "effort", speed,
+    "effort", 9-speed,
   #elif VIPS_SUPPORT_AVIF_SPEED
     "speed", speed,
   #endif