From 3c91e92068fe657a19e729b8235e27ce6d4243ac Mon Sep 17 00:00:00 2001
From: Evan Richter <evanjrichter@gmail.com>
Date: Tue, 23 Jan 2024 14:09:02 -0700
Subject: [PATCH 1/2] onevpl-intel-gpu: init at 23.4.3

---
 pkgs/by-name/on/onevpl-intel-gpu/package.nix | 38 ++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 pkgs/by-name/on/onevpl-intel-gpu/package.nix

diff --git a/pkgs/by-name/on/onevpl-intel-gpu/package.nix b/pkgs/by-name/on/onevpl-intel-gpu/package.nix
new file mode 100644
index 000000000000..64e6f9d262f2
--- /dev/null
+++ b/pkgs/by-name/on/onevpl-intel-gpu/package.nix
@@ -0,0 +1,38 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, cmake
+, pkg-config
+, libdrm
+, libva
+}:
+
+stdenv.mkDerivation rec {
+  pname = "onevpl-intel-gpu";
+  version = "23.4.3";
+
+  outputs = [ "out" "dev" ];
+
+  src = fetchFromGitHub {
+    owner = "oneapi-src";
+    repo = "oneVPL-intel-gpu";
+    rev = "intel-onevpl-${version}";
+    sha256 = "sha256-oDwDMUq6JpRJH5nbANb7TJLW7HRYA9y0xZxEsoepx/U=";
+  };
+
+  nativeBuildInputs = [ cmake pkg-config ];
+
+  buildInputs = [ libdrm libva ];
+
+  meta = {
+    description = "oneAPI Video Processing Library Intel GPU implementation";
+    homepage = "https://github.com/oneapi-src/oneVPL-intel-gpu";
+    changelog = "https://github.com/oneapi-src/oneVPL-intel-gpu/releases/tag/${src.rev}";
+    license = [ lib.licenses.mit ];
+    platforms = lib.platforms.linux;
+    # CMake adds x86 specific compiler flags in <source>/builder/FindGlobals.cmake
+    # NOTE: https://github.com/oneapi-src/oneVPL-intel-gpu/issues/303
+    broken = !stdenv.hostPlatform.isx86;
+    maintainers = [ lib.maintainers.evanrichter ];
+  };
+}

From 88add7e28ef9e6610619bac4752a11be0830a0d2 Mon Sep 17 00:00:00 2001
From: Philipp Jungkamp <p.jungkamp@gmx.net>
Date: Fri, 1 Sep 2023 00:28:34 +0200
Subject: [PATCH 2/2] ffmpeg: add withVPL option for libvpl

Co-authored-by: Evan Richter <evanjrichter@gmail.com>
---
 pkgs/development/libraries/ffmpeg/generic.nix | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/pkgs/development/libraries/ffmpeg/generic.nix b/pkgs/development/libraries/ffmpeg/generic.nix
index a44501fea081..f666b08af8ee 100644
--- a/pkgs/development/libraries/ffmpeg/generic.nix
+++ b/pkgs/development/libraries/ffmpeg/generic.nix
@@ -92,6 +92,7 @@
 , withVmaf ? withFullDeps && !stdenv.isAarch64 && lib.versionAtLeast version "5" # Netflix's VMAF (Video Multi-Method Assessment Fusion)
 , withVoAmrwbenc ? withFullDeps && withVersion3 # AMR-WB encoder
 , withVorbis ? withHeadlessDeps # Vorbis de/encoding, native encoder exists
+, withVpl ? false # Hardware acceleration via intel libvpl
 , withVpx ? withHeadlessDeps && stdenv.buildPlatform == stdenv.hostPlatform # VP8 & VP9 de/encoding
 , withVulkan ? withFullDeps && !stdenv.isDarwin
 , withWebp ? withFullDeps # WebP encoder
@@ -237,6 +238,7 @@
 , libvdpau
 , libvmaf
 , libvorbis
+, libvpl
 , libvpx
 , libwebp
 , libX11
@@ -319,6 +321,7 @@ assert withGPLv3 -> withGPL && withVersion3;
  *  Build dependencies
  */
 assert withPixelutils -> buildAvutil;
+assert !(withMfx && withVpl); # incompatible features
 /*
  *  Program dependencies
  */
@@ -529,6 +532,9 @@ stdenv.mkDerivation (finalAttrs: {
     (enableFeature withV4l2M2m "v4l2-m2m")
     (enableFeature withVaapi "vaapi")
     (enableFeature withVdpau "vdpau")
+  ] ++ optionals (versionAtLeast version "6.0")  [
+    (enableFeature withVpl "libvpl")
+  ] ++ [
     (enableFeature withVidStab "libvidstab") # Actual min. version 2.0
     (enableFeature withVmaf "libvmaf")
     (enableFeature withVoAmrwbenc "libvo-amrwbenc")
@@ -643,6 +649,7 @@ stdenv.mkDerivation (finalAttrs: {
   ++ optionals withVmaf [ libvmaf ]
   ++ optionals withVoAmrwbenc [ vo-amrwbenc ]
   ++ optionals withVorbis [ libvorbis ]
+  ++ optionals withVpl [ libvpl ]
   ++ optionals withVpx [ libvpx ]
   ++ optionals withVulkan [ vulkan-headers vulkan-loader ]
   ++ optionals withWebp [ libwebp ]