From c27fa30028316dd8d8c9907e8b9deb4cedbef7b2 Mon Sep 17 00:00:00 2001
From: "R. RyanTM" <ryantm-bot@ryantm.com>
Date: Wed, 18 Nov 2020 18:56:03 +0000
Subject: [PATCH 1/2] libavif: 0.8.2 -> 0.8.3

---
 pkgs/development/libraries/libavif/default.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/libraries/libavif/default.nix b/pkgs/development/libraries/libavif/default.nix
index e8fdc6eb206..e19e0303293 100644
--- a/pkgs/development/libraries/libavif/default.nix
+++ b/pkgs/development/libraries/libavif/default.nix
@@ -11,13 +11,13 @@
 
 stdenv.mkDerivation rec {
   pname = "libavif";
-  version = "0.8.2";
+  version = "0.8.3";
 
   src = fetchFromGitHub {
     owner = "AOMediaCodec";
     repo = pname;
     rev = "v${version}";
-    sha256 = "0f0l8ywz2jhc9mkfrzdxdvr3q39a404yn9wcyvqshfbkbprsan4p";
+    sha256 = "1d6ql4vq338dvz61d5im06dh8m9rqfk37f9i356j3njpq604i1f6";
   };
 
   # reco: encode libaom slowest but best, decode dav1d fastest

From 88db71c9aae7938d9b375ccc7c78d9582d078c9f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Maciej=20Kr=C3=BCger?= <mkg20001@gmail.com>
Date: Wed, 18 Nov 2020 23:20:04 +0100
Subject: [PATCH 2/2] libavif: disable libaom decoder

---
 pkgs/development/libraries/libavif/default.nix | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/libraries/libavif/default.nix b/pkgs/development/libraries/libavif/default.nix
index e19e0303293..09456433c1a 100644
--- a/pkgs/development/libraries/libavif/default.nix
+++ b/pkgs/development/libraries/libavif/default.nix
@@ -24,8 +24,9 @@ stdenv.mkDerivation rec {
 
   cmakeFlags = [
     "-DBUILD_SHARED_LIBS=ON"
-    "-DAVIF_CODEC_AOM=ON"
-    "-DAVIF_CODEC_DAV1D=ON"
+    "-DAVIF_CODEC_AOM=ON" # best encoder (slow but small)
+    "-DAVIF_CODEC_DAV1D=ON" # best decoder (fast)
+    "-DAVIF_CODEC_AOM_DECODE=OFF"
     "-DAVIF_BUILD_APPS=ON"
   ];