linux aplay 移植

#include <alsa/asoundlib.h>

int main(int argc, char *argv[]) {
    int err;
    snd_pcm_t *handle;
    snd_pcm_hw_params_t *params;

    if (argc < 2) {
        fprintf(stderr, "Usage: %s <file>\n", argv[0]);
        return 1;
    }

    // Open PCM device for playback.
    if ((err = snd_pcm_open(&handle, "default", SND_PCM_STREAM_PLAYBACK, 0)) < 0) {
        fprintf(stderr, "Cannot open audio device (%s)\n", snd_strerror(err));
        return 1;
    }

    // Allocate a hardware parameters object.
    snd_pcm_hw_params_alloca(&params);

    // Fill it in with default values.
    snd_pcm_hw_params_any(handle, params);

    // Set the desired hardware parameters.
    snd_pcm_hw_params_set_access(handle, params, SND_PCM_ACCESS_RW_INTERLEAVED);
    snd_pcm_hw_params_set_format(handle, params, SND_PCM_FORMAT_S16_LE);
    snd_pcm_hw_params_set_rate_near(handle, params, &rate, 0);
    snd_pcm_hw_params_set_channels(handle, params, 2);

    // Apply the hardware parameters.
    snd_pcm_hw_params(handle, params);

    // ... (Read and play the WAV file here)

    snd_pcm_close(handle);
    return 0;
}