depot/third_party/nixpkgs/pkgs/os-specific/linux/v4l-utils/default.nix

{
  stdenv,
  lib,
  fetchurl,
  pkg-config,
  perl,
  argp-standalone,
  libjpeg,
  udev,
  withUtils ? true,
  withGUI ? true,
  alsa-lib,
  libX11,
  qtbase,
  libGLU,
  wrapQtAppsHook,
}:

# See libv4l in all-packages.nix for the libs only (overrides alsa, libX11 & QT)

let
  withQt = withUtils && withGUI;

in
# we need to use stdenv.mkDerivation in order not to pollute the libv4l’s closure with Qt
stdenv.mkDerivation rec {
  pname = "v4l-utils";
  version = "1.24.1";

  src = fetchurl {
    url = "https://linuxtv.org/downloads/${pname}/${pname}-${version}.tar.bz2";
    hash = "sha256-y7f+imMH9c5TOgXN7XC7k8O6BjlaubbQB+tTt12AX1s=";
  };

  outputs = [ "out" ] ++ lib.optional withUtils "lib" ++ [ "dev" ];

  configureFlags = (
    if withUtils then
      [
        "--with-localedir=${placeholder "lib"}/share/locale"
        "--with-udevdir=${placeholder "out"}/lib/udev"
      ]
    else
      [
        "--disable-v4l-utils"
      ]
  );

  postFixup = ''
    # Create symlink for V4l1 compatibility
    ln -s "$dev/include/libv4l1-videodev.h" "$dev/include/videodev.h"
  '';

  nativeBuildInputs = [
    pkg-config
    perl
  ] ++ lib.optional withQt wrapQtAppsHook;

  buildInputs =
    [ udev ]
    ++ lib.optional (!stdenv.hostPlatform.isGnu) argp-standalone
    ++ lib.optionals withQt [
      alsa-lib
      libX11
      qtbase
      libGLU
    ];

  propagatedBuildInputs = [ libjpeg ];

  postPatch = ''
    patchShebangs utils/
  '';

  enableParallelBuilding = true;

  meta = with lib; {
    description = "V4L utils and libv4l, provide common image formats regardless of the v4l device";
    homepage = "https://linuxtv.org/projects.php";
    changelog = "https://git.linuxtv.org/v4l-utils.git/plain/ChangeLog?h=v4l-utils-${version}";
    license = with licenses; [
      lgpl21Plus
      gpl2Plus
    ];
    maintainers = with maintainers; [ codyopel ];
    platforms = platforms.linux;
  };
}