Add C++ runtime for MeloTTS (#1138)

scripts/apk/build-apk-tts-engine.sh.in

@@ -78,6 +78,10 @@ sed -i.bak s/"lang = null"/"lang = \"$lang_iso_639_3\""/ ./TtsEngine.kt
 git diff
 popd
 
+if [[ $model_dir == vits-melo-tts-zh_en ]]; then
+  lang=zh_en
+fi
+
 for arch in arm64-v8a armeabi-v7a x86_64 x86; do
   log "------------------------------------------------------------"
   log "build tts apk for $arch"

scripts/apk/build-apk-tts.sh.in

@@ -76,6 +76,10 @@ sed -i.bak s/"modelName = null"/"modelName = \"$model_name\""/ ./MainActivity.kt
 git diff
 popd
 
+if [[ $model_dir == vits-melo-tts-zh_en ]]; then
+  lang=zh_en
+fi
+
 for arch in arm64-v8a armeabi-v7a x86_64 x86; do
   log "------------------------------------------------------------"
   log "build tts apk for $arch"

scripts/apk/generate-tts-apk-script.py

@@ -312,6 +312,11 @@ def get_vits_models() -> List[TtsModel]:
             model_name="vits-zh-hf-fanchen-wnj.onnx",
             lang="zh",
         ),
+        TtsModel(
+            model_dir="vits-melo-tts-zh_en",
+            model_name="model.onnx",
+            lang="zh",
+        ),
         TtsModel(
             model_dir="vits-zh-hf-fanchen-C",
             model_name="vits-zh-hf-fanchen-C.onnx",
@@ -339,18 +344,21 @@ def get_vits_models() -> List[TtsModel]:
         ),
     ]
 
-    rule_fsts = ["phone.fst", "date.fst", "number.fst", "new_heteronym.fst"]
+    rule_fsts = ["phone.fst", "date.fst", "number.fst"]
     for m in chinese_models:
         s = [f"{m.model_dir}/{r}" for r in rule_fsts]
-        if "vits-zh-hf" in m.model_dir or "sherpa-onnx-vits-zh-ll" == m.model_dir:
+        if (
+            "vits-zh-hf" in m.model_dir
+            or "sherpa-onnx-vits-zh-ll" == m.model_dir
+            or "melo-tts" in m.model_dir
+        ):
             s = s[:-1]
             m.dict_dir = m.model_dir + "/dict"
+        else:
+            m.rule_fars = f"{m.model_dir}/rule.far"
 
         m.rule_fsts = ",".join(s)
 
-        if "vits-zh-hf" not in m.model_dir and "zh-ll" not in m.model_dir:
-            m.rule_fars = f"{m.model_dir}/rule.far"
-
     all_models = chinese_models + [
         TtsModel(
             model_dir="vits-cantonese-hf-xiaomaiiwn",