add cosyvoice code

runtime/python/cosyvoice.proto

@@ -0,0 +1,56 @@
+# Copyright (c) 2024 Alibaba Inc (authors: Xiang Lyu)
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+syntax = "proto3";
+
+package cosyvoice;
+option go_package = "protos/";
+
+service CosyVoice{
+  rpc Inference(Request) returns (Response) {}
+}
+
+message Request{
+  oneof RequestPayload {
+    sftRequest sft_request = 1;
+    zeroshotRequest zero_shot_request = 2;
+    crosslingualRequest cross_lingual_request = 3;
+    instructRequest instruct_request = 4;
+  }
+}
+
+message sftRequest{
+  string spk_id = 1;
+  string tts_text = 2;
+}
+
+message zeroshotRequest{
+  string tts_text = 1;
+  string prompt_text = 2;
+  bytes prompt_audio = 3;
+}
+
+message crosslingualRequest{
+  string tts_text = 1;
+  bytes prompt_audio = 2;
+}
+
+message instructRequest{
+  string tts_text = 1;
+  string spk_id = 2;
+  string instruct_text = 3;
+}
+
+message Response{
+  bytes tts_audio = 1;
+}