Add C# TTS API (#399)

2023-10-28 23:10:24 +08:00
parent 157628b257
commit 4115f97bf0
7 changed files with 455 additions and 0 deletions
--- a/dotnet-examples/TTS/TTSCore.cs
+++ b/dotnet-examples/TTS/TTSCore.cs
@@ -0,0 +1,70 @@
+using System.Runtime.InteropServices;
+using TTS.Struct;
+
+namespace TTS
+{
+    internal sealed class TTSCore : IDisposable
+    {
+        public const string Filename = "sherpa-onnx-c-api";
+
+        [DllImport(Filename)]
+        private static extern IntPtr SherpaOnnxCreateOfflineTts(SherpaOnnxOfflineTtsConfig handle);
+
+        [DllImport(Filename)]
+        private static extern IntPtr SherpaOnnxOfflineTtsGenerate(IntPtr createOfflineTtsIntptr, IntPtr text, int sid, float speed);
+
+        [DllImport(Filename)]
+        private static extern void SherpaOnnxDestroyOfflineTts(IntPtr intPtr);
+
+        /// <summary>
+        /// 原生句柄
+        /// </summary>
+        private IntPtr thisHandle;
+
+        public TTSCore(SherpaOnnxOfflineTtsConfig modelConfig)
+        {
+            thisHandle = SherpaOnnxCreateOfflineTts(modelConfig);
+        }
+
+        /// <summary>
+        /// 文字转语音
+        /// </summary>
+        /// <param name="text">文字</param>
+        /// <param name="sid">音色</param>
+        /// <param name="speed">速度</param>
+        /// <returns></returns>
+        public SherpaOnnxGeneratedAudioResult ToSpeech(string text, int sid, float speed = 1f)
+        {
+            var result = SherpaOnnxOfflineTtsGenerate(thisHandle, Marshal.StringToCoTaskMemUTF8(text), sid, speed);
+            SherpaOnnxGeneratedAudio impl = (SherpaOnnxGeneratedAudio)Marshal.PtrToStructure(result, typeof(SherpaOnnxGeneratedAudio));
+            return new SherpaOnnxGeneratedAudioResult(result, impl);
+        }
+
+        /// <summary>
+        /// 文字转语音
+        /// </summary>
+        /// <param name="text">文字</param>
+        /// <param name="sid">音色</param>
+        /// <param name="speed">速度</param>
+        /// <returns></returns>
+        public Task<SherpaOnnxGeneratedAudioResult> ToSpeechAsync(string text, int sid, float speed = 1f)
+        {
+            return Task.Run(() => ToSpeech(text, sid, speed));
+        }
+
+        ~TTSCore()
+        {
+            Dispose();
+        }
+
+        public void Dispose()
+        {
+            if (this.thisHandle != IntPtr.Zero)
+            {
+                SherpaOnnxDestroyOfflineTts(this.thisHandle);
+                GC.SuppressFinalize(this);
+                this.thisHandle = IntPtr.Zero;
+            }
+        }
+    }
+}