libsndfile with Pulse Audio

pulse.c

#include <stdio.h>

#include <sndfile.h>

#include <pulse/pulseaudio.h>
#include <pulse/simple.h>

int main(int argc, char* argv[])
{
    if (argc != 2)
    {
        printf("Usage: %s [filename]\n", argv[0]);
        return 0;
    }
    
    SNDFILE *f;
    SF_INFO info;
    
    f = sf_open(argv[1], SFM_READ, &info);
    int res = sf_error(f);
    
    if (res != 0)
    {
        printf("File error: %s\n", sf_strerror(f));
        return 0;
    }

    pa_simple *s;
    pa_sample_spec ss;

    ss.format = PA_SAMPLE_FLOAT32NE;
    ss.channels = info.channels;
    ss.rate = info.samplerate;
    
    s = pa_simple_new(NULL, "Nexus", PA_STREAM_PLAYBACK, NULL, "Music", &ss, NULL, NULL, NULL);
    
    double duration;
    duration = (1.0 * info.frames) / info.samplerate;
    
    printf("Sample rate: %iHz\n", info.samplerate);
    printf("Channels: %i\n", info.channels);
    printf("Duration: %fs\n", duration);

    int done = 0;
    int *err;
    
    float *buf;
    buf = (float*) malloc(256 * info.channels * sizeof(float));
    
    while (!done && (err >= 0))
    {
        int count = sf_readf_float(f, buf, 256);
        pa_simple_write(s, buf, (256 * info.channels * sizeof(float)), err);
        
        if (count < 256)
            done = 1;
    }
    
    free(buf);
    
    sf_close(f);
    
    pa_simple_free(s);
    
    return 0;
}