Add flake and some utils

.envrc

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+use flake

.gitignore

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+.direnv

README.md

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+This is discosip, PRJ16, an attempt to enable use of discord from a SIP phone.

flake.lock

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+{
+  "nodes": {
+    "devshell": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      },
+      "locked": {
+        "lastModified": 1655976588,
+        "narHash": "sha256-VreHyH6ITkf/1EX/8h15UqhddJnUleb0HgbC3gMkAEQ=",
+        "owner": "numtide",
+        "repo": "devshell",
+        "rev": "899ca4629020592a13a46783587f6e674179d1db",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "devshell",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1642700792,
+        "narHash": "sha256-XqHrk7hFb+zBvRg6Ghl+AZDq03ov6OshJLiSWOoX5es=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "846b2ae0fc4cc943637d3d1def4454213e203cba",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1643381941,
+        "narHash": "sha256-pHTwvnN4tTsEKkWlXQ8JMY423epos8wUOhthpwJjtpc=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "5efc8ca954272c4376ac929f4c5ffefcc20551d5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1656490020,
+        "narHash": "sha256-xonV1ITvAtwtoM58Iaz77mrkkj3NQKvP2QOPYZNiNvs=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "23488b5815ef60b3084a874f71fdae2dff52e1f7",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "type": "indirect"
+      }
+    },
+    "root": {
+      "inputs": {
+        "devshell": "devshell",
+        "nixpkgs": "nixpkgs_2",
+        "utils": "utils"
+      }
+    },
+    "utils": {
+      "locked": {
+        "lastModified": 1656065134,
+        "narHash": "sha256-oc6E6ByIw3oJaIyc67maaFcnjYOz1mMcOtHxbEf9NwQ=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "bee6a7250dd1b01844a2de7e02e4df7d8a0a206c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

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+{
+  description = "A basic flake from samw";
+  inputs = {
+    utils.url = "github:numtide/flake-utils";
+    devshell.url = "github:numtide/devshell";
+  };
+  outputs = {
+    self,
+    nixpkgs,
+    utils,
+    devshell,
+  }:
+    utils.lib.eachDefaultSystem (system: let
+      pkgs = import nixpkgs {
+        inherit system;
+
+        overlays = [devshell.overlay];
+      };
+    in {
+      devShells.default = pkgs.devshell.mkShell {
+        packages = with pkgs; [
+          ffmpeg
+          (callPackage ./pjsip {inherit (darwin.apple_sdk.frameworks) AppKit;})
+        ];
+      };
+      formatter = pkgs.alejandra;
+    });
+}

pjsip/default.nix

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+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  openssl,
+  libsamplerate,
+  alsa-lib,
+  AppKit,
+  fetchpatch,
+}:
+stdenv.mkDerivation rec {
+  pname = "pjsip";
+  version = "2.12.1";
+
+  src = fetchFromGitHub {
+    owner = pname;
+    repo = "pjproject";
+    rev = version;
+    sha256 = "sha256-HIDL4xzzTu3irzrIOf8qSNCAvHGOMpi8EDeqZb8mMnc=";
+  };
+
+  patches = [
+    ./fix-aarch64.patch
+  ];
+
+  buildInputs =
+    [openssl libsamplerate]
+    ++ lib.optional stdenv.isLinux alsa-lib
+    ++ lib.optional stdenv.isDarwin AppKit;
+
+  preConfigure = ''
+    export LD=$CC
+  '';
+
+  postInstall = ''
+    mkdir -p $out/bin
+    cp pjsip-apps/bin/pjsua-* $out/bin/pjsua
+    mkdir -p $out/share/${pname}-${version}/samples
+    cp pjsip-apps/bin/samples/*/* $out/share/${pname}-${version}/samples
+  '';
+
+  # We need the libgcc_s.so.1 loadable (for pthread_cancel to work)
+  dontPatchELF = true;
+
+  meta = with lib; {
+    description = "A multimedia communication library written in C, implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE";
+    homepage = "https://pjsip.org/";
+    license = licenses.gpl2Plus;
+    maintainers = with maintainers; [olynch];
+    mainProgram = "pjsua";
+    platforms = platforms.linux ++ platforms.darwin;
+  };
+}

pjsip/fix-aarch64.patch

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+--- a/aconfigure
++++ b/aconfigure
+@@ -9174,6 +9174,10 @@
+				 ac_webrtc_instset=neon
+				 ac_webrtc_cflags="-DWEBRTC_ARCH_ARM64"
+			    	 ;;
++                             arm64*|aarch64*)
++                                 ac_webrtc_instset=neon
++                                 ac_webrtc_cflags="-DWEBRTC_ARCH_ARM64"
++                                 ;;
+                              *)
+                                  ac_webrtc_instset=sse2
+                                  ;;