C++ API for speaker diarization (#1396)

sherpa-onnx/csrc/offline-speaker-diarization-impl.h

@@ -0,0 +1,31 @@
+// sherpa-onnx/csrc/offline-speaker-diarization-impl.h
+//
+// Copyright (c)  2024  Xiaomi Corporation
+
+#ifndef SHERPA_ONNX_CSRC_OFFLINE_SPEAKER_DIARIZATION_IMPL_H_
+#define SHERPA_ONNX_CSRC_OFFLINE_SPEAKER_DIARIZATION_IMPL_H_
+
+#include <functional>
+#include <memory>
+
+#include "sherpa-onnx/csrc/offline-speaker-diarization.h"
+namespace sherpa_onnx {
+
+class OfflineSpeakerDiarizationImpl {
+ public:
+  static std::unique_ptr<OfflineSpeakerDiarizationImpl> Create(
+      const OfflineSpeakerDiarizationConfig &config);
+
+  virtual ~OfflineSpeakerDiarizationImpl() = default;
+
+  virtual int32_t SampleRate() const = 0;
+
+  virtual OfflineSpeakerDiarizationResult Process(
+      const float *audio, int32_t n,
+      OfflineSpeakerDiarizationProgressCallback callback = nullptr,
+      void *callback_arg = nullptr) const = 0;
+};
+
+}  // namespace sherpa_onnx
+
+#endif  // SHERPA_ONNX_CSRC_OFFLINE_SPEAKER_DIARIZATION_IMPL_H_