From f7892cd41e6cc68fc864df119dc03b9d2b1ce9d5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vin=C3=ADcius=20Egidio?= <me@vinicius.io>
Date: Tue, 14 Jul 2026 22:49:49 +0100
Subject: [PATCH] [libavif] Add svt feature for SVT-AV1 encoding (#52859)

---
 ports/libavif/dependencies.diff | 7 ++++++-
 ports/libavif/portfile.cmake    | 3 +++
 ports/libavif/vcpkg.json        | 8 ++++++++
 versions/baseline.json          | 2 +-
 versions/l-/libavif.json        | 5 +++++
 5 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/ports/libavif/dependencies.diff b/ports/libavif/dependencies.diff
index 2a0f48992d..adaa0fc2c3 100644
--- a/ports/libavif/dependencies.diff
+++ b/ports/libavif/dependencies.diff
@@ -10,7 +10,7 @@ index a28e6c3..aaeb5d2 100644
      set(AVIF_LIB_USE_CXX ON)
  endif(AVIF_LIBYUV_ENABLED)
  
-@@ -849,13 +850,38 @@ if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL)
+@@ -849,13 +850,43 @@ if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL)
  
      # Enable CMake configs in VCPKG mode
      if(BUILD_SHARED_LIBS OR VCPKG_TARGET_TRIPLET)
@@ -25,6 +25,11 @@ index a28e6c3..aaeb5d2 100644
 +                list(APPEND avif_static_link_libs AOM::aom)
 +                string(APPEND avif_find_dependencies "find_dependency(AOM CONFIG)\n")
 +            endif()
++            if(AVIF_CODEC_SVT_ENABLED)
++                find_package(SVT-AV1 CONFIG REQUIRED)
++                list(APPEND avif_static_link_libs SVT-AV1::SVT-AV1)
++                string(APPEND avif_find_dependencies "find_dependency(SVT-AV1 CONFIG)\n")
++            endif()
 +            if(AVIF_CODEC_DAV1D_ENABLED)
 +                list(APPEND avif_static_link_libs ${DAV1D_LIBRARIES} ${CMAKE_DL_LIBS})
 +            endif()
diff --git a/ports/libavif/portfile.cmake b/ports/libavif/portfile.cmake
index 690bc33e45..2b8e42622c 100644
--- a/ports/libavif/portfile.cmake
+++ b/ports/libavif/portfile.cmake
@@ -17,6 +17,9 @@ endif()
 if("dav1d" IN_LIST FEATURES)
     list(APPEND FEATURE_OPTIONS "-DAVIF_CODEC_DAV1D=SYSTEM")
 endif()
+if("svt" IN_LIST FEATURES)
+    list(APPEND FEATURE_OPTIONS "-DAVIF_CODEC_SVT=SYSTEM")
+endif()
 
 vcpkg_find_acquire_program(PKGCONFIG)
 
diff --git a/ports/libavif/vcpkg.json b/ports/libavif/vcpkg.json
index 93d36b22db..10925a60bf 100644
--- a/ports/libavif/vcpkg.json
+++ b/ports/libavif/vcpkg.json
@@ -1,6 +1,7 @@
 {
   "name": "libavif",
   "version-semver": "1.4.2",
+  "port-version": 1,
   "description": "Library for encoding and decoding AVIF files",
   "homepage": "https://github.com/AOMediaCodec/libavif",
   "license": "BSD-2-Clause AND Apache-2.0",
@@ -27,6 +28,13 @@
       "dependencies": [
         "dav1d"
       ]
+    },
+    "svt": {
+      "description": "SVT-AV1 encoder library",
+      "supports": "!x86 & !arm32 & !uwp",
+      "dependencies": [
+        "svt-av1"
+      ]
     }
   }
 }
diff --git a/versions/baseline.json b/versions/baseline.json
index 8e8883c6cf..526b8c6de7 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -4798,7 +4798,7 @@
     },
     "libavif": {
       "baseline": "1.4.2",
-      "port-version": 0
+      "port-version": 1
     },
     "libb2": {
       "baseline": "0.98.1",
diff --git a/versions/l-/libavif.json b/versions/l-/libavif.json
index 29db57f032..077470cd6f 100644
--- a/versions/l-/libavif.json
+++ b/versions/l-/libavif.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "cad3f5196a32c420fb9aebfc2a8a5876e5c36129",
+      "version-semver": "1.4.2",
+      "port-version": 1
+    },
     {
       "git-tree": "cc1d820f4db3384d7184714b82878fe8fa5b71fc",
       "version-semver": "1.4.2",