push sheeet

pkgs/by-name/lp/lpcnet/darwin.patch

@@ -0,0 +1,13 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 1600871..1536c55 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -158,7 +158,7 @@ elseif(${SSE} AND (${SSE_PRESENT} OR ${SSE_PRESENT} GREATER 0))
+ # AVX and AVX2 machines will also match on SSE
+     message(STATUS "sse processor flags found or enabled.")
+     set(LPCNET_C_PROC_FLAGS -msse4.1)
+-elseif(${NEON} AND (${NEON_PRESENT} OR ${NEON_PRESENT} GREATER 0))
++elseif(${NEON} AND (${NEON_PRESENT} OR ${NEON_PRESENT} GREATER 0) AND NOT APPLE)
+     # RPi / ARM 32bit
+     message(STATUS "neon processor flags found or enabled.")
+     set(LPCNET_C_PROC_FLAGS -mfpu=neon -march=armv8-a -mtune=cortex-a53)

pkgs/by-name/lp/lpcnet/package.nix

@@ -0,0 +1,69 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  fetchurl,
+  cmake,
+  codec2,
+  sox,
+}:
+
+stdenv.mkDerivation (finalAttrs: {
+  pname = "LPCNet";
+  version = "0.5-unstable-2025-01-19";
+
+  src = fetchFromGitHub {
+    owner = "drowe67";
+    repo = "LPCNet";
+    rev = "c8e51ac5e2fe674849cb53e7da44689b572cc246";
+    sha256 = "sha256-0Knoym+deTuFAyJrrD55MijVh6DlhJp3lss66BJUHiA=";
+  };
+
+  patches = [
+    # extracted from https://github.com/drowe67/LPCNet/pull/59
+    ./darwin.patch
+  ];
+
+  passthru = {
+    # Prebuilt neural network model that is needed during the build - can be overwritten
+    nnmodel = fetchurl {
+      url = "http://rowetel.com/downloads/deep/lpcnet_191005_v1.0.tgz";
+      hash = "sha256-UJRAkkdR/dh/+qVoPuPd3ZN69cgzuRBMzOZdUWFJJsg=";
+    };
+  };
+
+  preConfigure = ''
+    mkdir build
+    cp \
+      ${finalAttrs.finalPackage.passthru.nnmodel} \
+      build/${finalAttrs.finalPackage.passthru.nnmodel.name}
+  '';
+
+  nativeBuildInputs = [
+    cmake
+  ];
+
+  buildInputs = [
+    codec2
+  ];
+
+  doCheck = true;
+  nativeCheckInputs = [
+    # NOTE: From some reason, the tests pass without this on x86_64-linux, but
+    # not on aarch64-linux, although the relevant test is not enabled
+    # conditionally, see:
+    # https://github.com/drowe67/LPCNet/blob/c8e51ac5e2fe674849cb53e7da44689b572cc246/CMakeLists.txt#L220-L225
+    sox
+  ];
+
+  meta = {
+    description = "Experimental Neural Net speech coding for FreeDV";
+    homepage = "https://github.com/drowe67/LPCNet";
+    license = lib.licenses.bsd3;
+    maintainers = with lib.maintainers; [
+      doronbehar
+      mvs
+    ];
+    platforms = lib.platforms.all;
+  };
+})