2 files changed, 86 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/libraries/piper-phonemize/default.nix b/nixpkgs/pkgs/development/libraries/piper-phonemize/default.nix
new file mode 100644
index 000000000000..fd1c1ae34b4c
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/piper-phonemize/default.nix
@@ -0,0 +1,60 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+
+# build
+, cmake
+, pkg-config
+
+# runtime
+, espeak-ng
+, onnxruntime
+}:
+
+let
+  espeak-ng' = espeak-ng.overrideAttrs (oldAttrs: {
+    version = "1.52-dev";
+    src = fetchFromGitHub {
+      owner = "rhasspy";
+      repo = "espeak-ng";
+      rev = "61504f6b76bf9ebbb39b07d21cff2a02b87c99ff";
+      hash = "sha256-RBHL11L5uazAFsPFwul2QIyJREXk9Uz8HTZx9JqmyIQ=";
+    };
+
+    patches = [
+      ./espeak-mbrola.patch
+    ];
+  });
+in
+stdenv.mkDerivation rec {
+  pname = "piper-phonemize";
+  version = "1.1.0";
+
+  src = fetchFromGitHub {
+    owner = "rhasspy";
+    repo = "piper-phonemize";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-cMer7CSLOXv3jc9huVA3Oy5cjXjOX9XuEXpIWau1BNQ=";
+  };
+
+  nativeBuildInputs = [
+    cmake
+    pkg-config
+  ];
+
+  buildInputs = [
+    espeak-ng'
+    onnxruntime
+  ];
+
+  passthru = {
+    espeak-ng = espeak-ng';
+  };
+
+  meta = with lib; {
+    description = "C++ library for converting text to phonemes for Piper";
+    homepage = "https://github.com/rhasspy/piper-phonemize";
+    license = licenses.mit;
+    maintainers = with maintainers; [ hexa ];
+  };
+}
diff --git a/nixpkgs/pkgs/development/libraries/piper-phonemize/espeak-mbrola.patch b/nixpkgs/pkgs/development/libraries/piper-phonemize/espeak-mbrola.patch
new file mode 100644
index 000000000000..9d3f0aeb4abe
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/piper-phonemize/espeak-mbrola.patch
@@ -0,0 +1,26 @@
+diff --git a/src/libespeak-ng/mbrowrap.c b/src/libespeak-ng/mbrowrap.c
+index ae137873..9015cc01 100644
+--- a/src/libespeak-ng/mbrowrap.c
++++ b/src/libespeak-ng/mbrowrap.c
+@@ -206,7 +206,7 @@ static int start_mbrola(const char *voice_path)
+ 		signal(SIGTERM, SIG_IGN);
+ 
+ 		snprintf(charbuf, sizeof(charbuf), "%g", mbr_volume);
+-		execlp("mbrola", "mbrola", "-e", "-v", charbuf,
++		execlp("@mbrola/bin/mbrola", "mbrola", "-e", "-v", charbuf,
+ 		       voice_path, "-", "-.wav", (char *)NULL);
+ 		/* if execution reaches this point then the exec() failed */
+ 		snprintf(mbr_errorbuf, sizeof(mbr_errorbuf),
+diff --git a/src/libespeak-ng/synth_mbrola.c b/src/libespeak-ng/synth_mbrola.c
+index 734631b7..46d1f13e 100644
+--- a/src/libespeak-ng/synth_mbrola.c
++++ b/src/libespeak-ng/synth_mbrola.c
+@@ -85,7 +85,7 @@ espeak_ng_STATUS LoadMbrolaTable(const char *mbrola_voice, const char *phtrans,
+ 	if (!load_MBR())
+ 		return ENS_MBROLA_NOT_FOUND;
+ 
+-	sprintf(path, "%s/mbrola/%s", path_home, mbrola_voice);
++	sprintf(path, "@mbrola@/share/mbrola/voices/%s/%s", mbrola_voice, mbrola_voice);
+ #if PLATFORM_POSIX
+ 	// if not found, then also look in
+ 	//   usr/share/mbrola/xx, /usr/share/mbrola/xx/xx, /usr/share/mbrola/voices/xx