faked-alsa.cc
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// sherpa-onnx/python/csrc/faked-alsa.cc
//
// Copyright (c) 2024 Xiaomi Corporation
#include "sherpa-onnx/csrc/macros.h"
#include "sherpa-onnx/python/csrc/alsa.h"
namespace sherpa_onnx {
class FakedAlsa {
public:
explicit FakedAlsa(const char *) {
SHERPA_ONNX_LOGE("This function is for Linux only.");
#if (SHERPA_ONNX_ENABLE_ALSA == 0) && (defined(__unix__) || defined(__unix))
SHERPA_ONNX_LOGE(R"doc(
sherpa-onnx is compiled without alsa support. To enable that, please run
(1) sudo apt-get install alsa-utils libasound2-dev
(2) rebuild sherpa-onnx
)doc");
#endif
exit(-1);
}
std::vector<float> Read(int32_t) const { return {}; }
int32_t GetExpectedSampleRate() const { return -1; }
int32_t GetActualSampleRate() const { return -1; }
};
void PybindAlsa(py::module *m) {
using PyClass = FakedAlsa;
py::class_<PyClass>(*m, "Alsa")
.def(py::init<const char *>(), py::arg("device_name"))
.def(
"read",
[](PyClass &self, int32_t num_samples) -> std::vector<float> {
return self.Read(num_samples);
},
py::arg("num_samples"), py::call_guard<py::gil_scoped_release>())
.def_property_readonly("expected_sample_rate",
&PyClass::GetExpectedSampleRate)
.def_property_readonly("actual_sample_rate",
&PyClass::GetActualSampleRate);
}
} // namespace sherpa_onnx