107 lines
3.3 KiB
Nix
107 lines
3.3 KiB
Nix
{ stdenv
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, cacert
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, curl
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, runCommandLocal
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, lib
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, autoPatchelfHook
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, libcxx
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, libGL
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, gcc7
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}:
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stdenv.mkDerivation rec {
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pname = "blackmagic-desktop-video";
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version = "12.9a3";
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buildInputs = [
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autoPatchelfHook
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libcxx
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libGL
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gcc7.cc.lib
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];
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# yes, the below download function is an absolute mess.
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# blame blackmagicdesign.
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src = runCommandLocal "${pname}-${lib.versions.majorMinor version}-src.tar.gz"
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rec {
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outputHashMode = "recursive";
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outputHashAlgo = "sha256";
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outputHash = "sha256-H7AHD6u8KsJoL+ug3QCqxuPfMP4A0nHtIyKx5IaQkdQ=";
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impureEnvVars = lib.fetchers.proxyImpureEnvVars;
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nativeBuildInputs = [ curl ];
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# ENV VARS
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SSL_CERT_FILE = "${cacert}/etc/ssl/certs/ca-bundle.crt";
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# from the URL that the POST happens to, see browser console
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DOWNLOADID = "495ebc707969447598c2f1cf0ff8d7d8";
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# from the URL the download page where you click the "only download" button is at
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REFERID = "6e65a87d97bd49e1915c57f8df255f5c";
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SITEURL = "https://www.blackmagicdesign.com/api/register/us/download/${DOWNLOADID}";
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USERAGENT = builtins.concatStringsSep " " [
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"User-Agent: Mozilla/5.0 (X11; Linux ${stdenv.hostPlatform.linuxArch})"
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"AppleWebKit/537.36 (KHTML, like Gecko)"
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"Chrome/77.0.3865.75"
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"Safari/537.36"
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];
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REQJSON = builtins.toJSON {
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"country" = "nl";
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"downloadOnly" = true;
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"platform" = "Linux";
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"policy" = true;
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};
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} ''
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RESOLVEURL=$(curl \
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-s \
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-H "$USERAGENT" \
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-H 'Content-Type: application/json;charset=UTF-8' \
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-H "Referer: https://www.blackmagicdesign.com/support/download/$REFERID/Linux" \
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--data-ascii "$REQJSON" \
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--compressed \
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"$SITEURL")
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curl \
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--retry 3 --retry-delay 3 \
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--compressed \
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"$RESOLVEURL" \
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> $out
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'';
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postUnpack = let
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arch = stdenv.hostPlatform.uname.processor;
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in ''
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tar xf Blackmagic_Desktop_Video_Linux_${lib.head (lib.splitString "a" version)}/other/${arch}/desktopvideo-${version}-${arch}.tar.gz
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unpacked=$NIX_BUILD_TOP/desktopvideo-${version}-${stdenv.hostPlatform.uname.processor}
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'';
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installPhase = ''
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runHook preInstall
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mkdir -p $out/{bin,share/doc,lib/systemd/system}
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cp -r $unpacked/usr/share/doc/desktopvideo $out/share/doc
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cp $unpacked/usr/lib/*.so $out/lib
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cp $unpacked/usr/lib/systemd/system/DesktopVideoHelper.service $out/lib/systemd/system
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cp $unpacked/usr/lib/blackmagic/DesktopVideo/DesktopVideoHelper $out/bin/
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substituteInPlace $out/lib/systemd/system/DesktopVideoHelper.service --replace "/usr/lib/blackmagic/DesktopVideo/DesktopVideoHelper" "$out/bin/DesktopVideoHelper"
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runHook postInstall
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'';
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# i know this is ugly, but it's the cleanest way i found to tell the DesktopVideoHelper where to find its own library
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appendRunpaths = [ "$ORIGIN/../lib" ];
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meta = with lib; {
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homepage = "https://www.blackmagicdesign.com/support/family/capture-and-playback";
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maintainers = [ maintainers.hexchen ];
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license = licenses.unfree;
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description = "Supporting applications for Blackmagic Decklink. Doesn't include the desktop applications, only the helper required to make the driver work";
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platforms = platforms.linux;
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};
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}
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