From 4dc18dd8ee943438b649861bb483ebcf140815ca Mon Sep 17 00:00:00 2001
From: Reuben Morais <reuben.morais@gmail.com>
Date: Thu, 10 Oct 2019 22:04:44 +0200
Subject: [PATCH] Expose and use model sample rate in .NET
---
native_client/dotnet/DeepSpeechClient/DeepSpeech.cs | 9 +++++++++
.../dotnet/DeepSpeechClient/Interfaces/IDeepSpeech.cs | 6 ++++++
native_client/dotnet/DeepSpeechClient/NativeImp.cs | 3 +++
3 files changed, 18 insertions(+)
diff --git a/native_client/dotnet/DeepSpeechClient/DeepSpeech.cs b/native_client/dotnet/DeepSpeechClient/DeepSpeech.cs
index 25fcc109..9bbf5e3c 100644
--- a/native_client/dotnet/DeepSpeechClient/DeepSpeech.cs
+++ b/native_client/dotnet/DeepSpeechClient/DeepSpeech.cs
@@ -64,6 +64,15 @@ namespace DeepSpeechClient
EvaluateResultCode(resultCode);
}
+ /// <summary>
+ /// Return the sample rate expected by the model.
+ /// </summary>
+ /// <returns>Sample rate.</returns>
+ public unsafe int GetModelSampleRate()
+ {
+ return NativeImp.DS_GetModelSampleRate(_modelStatePP);
+ }
+
/// <summary>
/// Evaluate the result code and will raise an exception if necessary.
/// </summary>
diff --git a/native_client/dotnet/DeepSpeechClient/Interfaces/IDeepSpeech.cs b/native_client/dotnet/DeepSpeechClient/Interfaces/IDeepSpeech.cs
index 79af2964..f7bbee98 100644
--- a/native_client/dotnet/DeepSpeechClient/Interfaces/IDeepSpeech.cs
+++ b/native_client/dotnet/DeepSpeechClient/Interfaces/IDeepSpeech.cs
@@ -24,6 +24,12 @@ namespace DeepSpeechClient.Interfaces
string aAlphabetConfigPath,
uint aBeamWidth);
+ /// <summary>
+ /// Return the sample rate expected by the model.
+ /// </summary>
+ /// <returns>Sample rate.</returns>
+ unsafe int GetModelSampleRate();
+
/// <summary>
/// Enable decoding using beam scoring with a KenLM language model.
/// </summary>
diff --git a/native_client/dotnet/DeepSpeechClient/NativeImp.cs b/native_client/dotnet/DeepSpeechClient/NativeImp.cs
index 74de9197..92cdb150 100644
--- a/native_client/dotnet/DeepSpeechClient/NativeImp.cs
+++ b/native_client/dotnet/DeepSpeechClient/NativeImp.cs
@@ -20,6 +20,9 @@ namespace DeepSpeechClient
uint aBeamWidth,
ref IntPtr** pint);
+ [DllImport("libdeepspeech.so", CallingConvention = CallingConvention.Cdecl)]
+ internal unsafe static extern int DS_GetModelSampleRate(IntPtr** aCtx);
+
[DllImport("libdeepspeech.so", CallingConvention = CallingConvention.Cdecl)]
internal static unsafe extern ErrorCodes DS_EnableDecoderWithLM(IntPtr** aCtx,
string aLMPath,