Implement meeting assistant v1

MeetingAssistant/Transcription/ConfiguredSpeechRecognitionPipelineFactory.cs

@@ -0,0 +1,29 @@
+using Microsoft.Extensions.Options;
+
+namespace MeetingAssistant.Transcription;
+
+public sealed class ConfiguredSpeechRecognitionPipelineFactory : ISpeechRecognitionPipelineFactory
+{
+    private readonly IServiceProvider services;
+    private readonly MeetingAssistantOptions options;
+
+    public ConfiguredSpeechRecognitionPipelineFactory(
+        IServiceProvider services,
+        IOptions<MeetingAssistantOptions> options)
+    {
+        this.services = services;
+        this.options = options.Value;
+    }
+
+    public ISpeechRecognitionPipeline Create()
+    {
+        return options.Recording.TranscriptionProvider switch
+        {
+            "funasr" => ActivatorUtilities.CreateInstance<FunAsrSpeechRecognitionPipeline>(services),
+            "whisper-local" => ActivatorUtilities.CreateInstance<WhisperLocalSpeechRecognitionPipeline>(services),
+            "azure-speech" => ActivatorUtilities.CreateInstance<AzureSpeechRecognitionPipeline>(services),
+            _ => throw new InvalidOperationException(
+                $"Unsupported speech recognition pipeline '{options.Recording.TranscriptionProvider}'.")
+        };
+    }
+}