nv-codec-headers: bring package to top-level

pkgs/development/libraries/ffmpeg-full/default.nix

@@ -96,7 +96,7 @@
 , libxcbshapeExtlib ? true # X11 grabbing shape rendering
 , libXv ? null # Xlib support
 , lzma ? null # xz-utils
-, nvenc ? false, nvidia-video-sdk ? null # NVIDIA NVENC support
+, nvenc ? false, nvidia-video-sdk ? null, nv-codec-headers ? null # NVIDIA NVENC support
 , callPackage # needed for NVENC to access external ffmpeg nvidia headers
 , openal ? null # OpenAL 1.1 capture support
 #, opencl ? null # OpenCL code
@@ -176,8 +176,6 @@
 let
   inherit (stdenv) isCygwin isFreeBSD isLinux;
   inherit (stdenv.lib) optional optionals optionalString enableFeature;
-
-  nv-codec-headers = callPackage ./nv-codec-headers.nix { };
 in
 
 /*

pkgs/development/libraries/ffmpeg-full/nv-codec-headers.nix

@@ -1,22 +0,0 @@
-{ stdenv, fetchgit }:
-
-stdenv.mkDerivation rec {
-  name = "nv-codec-headers-${version}";
-  version = "n8.1.24.2";
-
-  src = fetchgit {
-    url = "https://git.videolan.org/git/ffmpeg/nv-codec-headers.git";
-    rev = "${version}";
-    sha256 = "122i3f6whiz5yp44dhk73ifr1973z8vvfbg4216vb782bl8b5bam";
-  };
-
-  makeFlags = [ "PREFIX=$(out)" ];
-
-  meta = {
-    description = "ffmpeg nvidia headers for NVENC";
-    homepage = http://ffmpeg.org/;
-    license = stdenv.lib.licenses.gpl3Plus;
-    maintainers = [ stdenv.lib.maintainers.MP2E ];
-    platforms = stdenv.lib.platforms.all;
-  };
-}