alsa-play.h
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// sherpa-onnx/csrc/alsa-play.h
//
// Copyright (c) 2022-2023 Xiaomi Corporation
#ifndef SHERPA_ONNX_CSRC_ALSA_PLAY_H_
#define SHERPA_ONNX_CSRC_ALSA_PLAY_H_
#include <cstdint>
#include <memory>
#include <vector>
#include "alsa/asoundlib.h"
#include "sherpa-onnx/csrc/resample.h"
namespace sherpa_onnx {
class AlsaPlay {
public:
AlsaPlay(const char *device_name, int32_t sample_rate);
~AlsaPlay();
void Play(const std::vector<float> &samples);
// wait for all the samples to be played
void Drain();
private:
void SetParameters(int32_t sample_rate);
private:
snd_pcm_t *handle_ = nullptr;
std::unique_ptr<LinearResample> resampler_;
std::vector<int16_t> buf_;
};
} // namespace sherpa_onnx
#endif // SHERPA_ONNX_CSRC_ALSA_PLAY_H_