/*

 *  This extra small demo sends a random samples to your speakers.

 */

#include "../include/asoundlib.h"

static char *device = "default";			/* playback device */

unsigned char buffer[16*1024];				/* some random data */

int main(void)

{

	int err;

	unsigned int i;

	snd_pcm_t *handle;

	snd_pcm_sframes_t frames;

	for (i = 0; i < sizeof(buffer); i++)

		buffer[i] = random() & 0xff;

	if ((err = snd_pcm_open(&handle, device, SND_PCM_STREAM_PLAYBACK, 0)) < 0) {

		printf("Playback open error: %s\n", snd_strerror(err));

		exit(EXIT_FAILURE);

	}

	if ((err = snd_pcm_set_params(handle,

				      SND_PCM_FORMAT_U8,

				      SND_PCM_ACCESS_RW_INTERLEAVED,

				      1,

				      48000,

				      1,

				      500000)) < 0) {	/* 0.5sec */

		printf("Playback open error: %s\n", snd_strerror(err));

		exit(EXIT_FAILURE);

	}

        for (i = 0; i < 16; i++) {

		frames = snd_pcm_writei(handle, buffer, sizeof(buffer));

		if (frames < 0)

			frames = snd_pcm_recover(handle, frames, 0);

		if (frames < 0) {

			printf("snd_pcm_writei failed: %s\n", snd_strerror(frames));

			break;

		}

		if (frames > 0 && frames < (long)sizeof(buffer))

			printf("Short write (expected %li, wrote %li)\n", (long)sizeof(buffer), frames);

	}

	/* pass the remaining samples, otherwise they're dropped in close */

	err = snd_pcm_drain(handle);

	if (err < 0)

		printf("snd_pcm_drain failed: %s\n", snd_strerror(err));

	snd_pcm_close(handle);

	return 0;

}