pyrox.dev
1{
2 stdenv,
3 lib,
4 blackmagic-desktop-video,
5 kernel,
6 fetchpatch,
7}:
8stdenv.mkDerivation (finalAttrs: {
9 pname = "decklink";
10
11 # the download is a horrible curl mess. we reuse it between the kernel module
12 # and desktop service, since the version of the two have to match anyways.
13 # See pkgs/by-name/bl/blackmagic-desktop-video/package.nix for more.
14 inherit (blackmagic-desktop-video) src version;
15
16 patches = lib.optionals (lib.versionAtLeast kernel.modDirVersion "6.13") [
17 # needed for version 14.4.x to build for kernel 6.13
18 (fetchpatch {
19 name = "01-update-makefiles";
20 url = "https://aur.archlinux.org/cgit/aur.git/plain/01-update-makefiles.patch?h=decklink";
21 hash = "sha256-l3iu0fG/QJMdGI/WSlNn+qjF4nK25JxoiwhPrMGTqE4=";
22 })
23 ];
24
25 KERNELDIR = "${kernel.dev}/lib/modules/${kernel.modDirVersion}/build";
26 INSTALL_MOD_PATH = placeholder "out";
27
28 nativeBuildInputs = kernel.moduleBuildDependencies;
29
30 postUnpack =
31 let
32 arch = stdenv.hostPlatform.uname.processor;
33 in
34 ''
35 tar xf Blackmagic_Desktop_Video_Linux_${lib.head (lib.splitString "a" finalAttrs.version)}/other/${arch}/desktopvideo-${finalAttrs.version}-${arch}.tar.gz
36 moduleRoot=$NIX_BUILD_TOP/desktopvideo-${finalAttrs.version}-${stdenv.hostPlatform.uname.processor}/usr/src
37 sourceRoot=$moduleRoot
38 '';
39
40 buildPhase = ''
41 runHook preBuild
42 make -C $moduleRoot/blackmagic-${finalAttrs.version} -j$NIX_BUILD_CORES
43 make -C $moduleRoot/blackmagic-io-${finalAttrs.version} -j$NIX_BUILD_CORES
44 runHook postBuild
45 '';
46
47 installPhase = ''
48 runHook preInstall
49 make -C $KERNELDIR M=$moduleRoot/blackmagic-${finalAttrs.version} modules_install
50 make -C $KERNELDIR M=$moduleRoot/blackmagic-io-${finalAttrs.version} modules_install
51 runHook postInstall
52 '';
53
54 meta = with lib; {
55 homepage = "https://www.blackmagicdesign.com/support/family/capture-and-playback";
56 maintainers = [ maintainers.naxdy ];
57 license = licenses.unfree;
58 description = "Kernel module for the Blackmagic Design Decklink cards";
59 sourceProvenance = with lib.sourceTypes; [ binaryFirmware ];
60 platforms = platforms.linux;
61 };
62})