Add Python API for source separation (#2283)

sherpa-onnx/python/csrc/offline-source-separation-model-config.cc

@@ -0,0 +1,37 @@
+// sherpa-onnx/python/csrc/offline-source-separation-model-config.cc
+//
+// Copyright (c)  2025  Xiaomi Corporation
+
+#include "sherpa-onnx/python/csrc/offline-source-separation-model-config.h"
+
+#include <string>
+
+#include "sherpa-onnx/csrc/offline-source-separation-model-config.h"
+#include "sherpa-onnx/python/csrc/offline-source-separation-spleeter-model-config.h"
+#include "sherpa-onnx/python/csrc/offline-source-separation-uvr-model-config.h"
+
+namespace sherpa_onnx {
+
+void PybindOfflineSourceSeparationModelConfig(py::module *m) {
+  PybindOfflineSourceSeparationSpleeterModelConfig(m);
+  PybindOfflineSourceSeparationUvrModelConfig(m);
+
+  using PyClass = OfflineSourceSeparationModelConfig;
+  py::class_<PyClass>(*m, "OfflineSourceSeparationModelConfig")
+      .def(py::init<const OfflineSourceSeparationSpleeterModelConfig &,
+                    const OfflineSourceSeparationUvrModelConfig &, int32_t,
+                    bool, const std::string &>(),
+           py::arg("spleeter") = OfflineSourceSeparationSpleeterModelConfig{},
+           py::arg("uvr") = OfflineSourceSeparationUvrModelConfig{},
+           py::arg("num_threads") = 1, py::arg("debug") = false,
+           py::arg("provider") = "cpu")
+      .def_readwrite("spleeter", &PyClass::spleeter)
+      .def_readwrite("uvr", &PyClass::uvr)
+      .def_readwrite("num_threads", &PyClass::num_threads)
+      .def_readwrite("debug", &PyClass::debug)
+      .def_readwrite("provider", &PyClass::provider)
+      .def("validate", &PyClass::Validate)
+      .def("__str__", &PyClass::ToString);
+}
+
+}  // namespace sherpa_onnx