C API for speaker diarization (#1402)

sherpa-onnx/csrc/fast-clustering-config.h

@@ -20,8 +20,8 @@ struct FastClusteringConfig {
 
   // distance threshold.
   //
-  // The lower, the more clusters it will generate.
-  // The higher, the fewer clusters it will generate.
+  // The smaller, the more clusters it will generate.
+  // The larger, the fewer clusters it will generate.
   float threshold = 0.5;
 
   FastClusteringConfig() = default;

sherpa-onnx/csrc/offline-speaker-diarization.cc

@@ -43,6 +43,16 @@ bool OfflineSpeakerDiarizationConfig::Validate() const {
     return false;
   }
 
+  if (min_duration_on < 0) {
+    SHERPA_ONNX_LOGE("min_duration_on %.3f is negative", min_duration_on);
+    return false;
+  }
+
+  if (min_duration_off < 0) {
+    SHERPA_ONNX_LOGE("min_duration_off %.3f is negative", min_duration_off);
+    return false;
+  }
+
   return true;
 }
 

sherpa-onnx/csrc/sherpa-onnx-offline-speaker-diarization.cc

@@ -7,7 +7,7 @@
 #include "sherpa-onnx/csrc/wave-reader.h"
 
 static int32_t ProgressCallback(int32_t processed_chunks, int32_t num_chunks,
-                                void *arg) {
+                                void *) {
   float progress = 100.0 * processed_chunks / num_chunks;
   fprintf(stderr, "progress %.2f%%\n", progress);