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	#include <stdio.h>
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	#include <stdio.h>
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	#include <stdlib.h>
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	#include <stdlib.h>
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	#include <alsa/asoundlib.h>
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	#include <alsa/asoundlib.h>
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	int exact_rate = 44100;
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	int exact_rate = 44100;
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#define BUFFER_SIZE	1024
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	main (int argc, char *argv[])
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	main (int argc, char *argv[])
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	{
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	{
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		int i;
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		int i,j;
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		int err;
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		int err;
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		short buf[128];
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		short buf[BUFFER_SIZE];
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		snd_pcm_t *capture_handle;
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		snd_pcm_t *capture_handle;
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		snd_pcm_hw_params_t *hw_params;
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		snd_pcm_hw_params_t *hw_params;
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		if ((err = snd_pcm_open (&capture_handle, argv[1], SND_PCM_STREAM_CAPTURE, 0)) < 0) {
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		if ((err = snd_pcm_open (&capture_handle, argv[1], SND_PCM_STREAM_CAPTURE, 0)) < 0) {
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			fprintf (stderr, "cannot open audio device %s (%s)\n",
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			fprintf (stderr, "cannot open audio device %s (%s)\n",
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				 argv[1],
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				 argv[1],
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				 snd_strerror (err));
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				 snd_strerror (err));
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			exit (1);
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			exit (1);
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		}
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		}
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fprintf (stdout,"nastaveni formatu");
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fprintf (stdout,"nastaveni formatu\n");
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		if ((err = snd_pcm_hw_params_malloc (&hw_params)) < 0) {
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		if ((err = snd_pcm_hw_params_malloc (&hw_params)) < 0) {
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			fprintf (stderr, "cannot allocate hardware parameter structure (%s)\n",
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			fprintf (stderr, "cannot allocate hardware parameter structure (%s)\n",
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				 snd_strerror (err));
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				 snd_strerror (err));
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			exit (1);
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			exit (1);
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		if ((err = snd_pcm_hw_params_set_format (capture_handle, hw_params, SND_PCM_FORMAT_S16_LE)) < 0) {
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		if ((err = snd_pcm_hw_params_set_format (capture_handle, hw_params, SND_PCM_FORMAT_S16_LE)) < 0) {
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			fprintf (stderr, "cannot set sample format (%s)\n",
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			fprintf (stderr, "cannot set sample format (%s)\n",
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				 snd_strerror (err));
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				 snd_strerror (err));
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			exit (1);
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			exit (1);
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		}
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		}
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fprintf (stdout,"nastaveni formatu");
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fprintf (stdout,"nastaveni formatu\n");
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		if ((err = snd_pcm_hw_params_set_rate_near (capture_handle, hw_params, &exact_rate, 0)) < 0) {
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		if ((err = snd_pcm_hw_params_set_rate_near (capture_handle, hw_params, &exact_rate, 0)) < 0) {
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			fprintf (stderr, "cannot set sample rate (%s)\n",
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			fprintf (stderr, "cannot set sample rate (%s)\n",
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				 snd_strerror (err));
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				 snd_strerror (err));
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			exit (1);
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			exit (1);
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		}
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		}
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fprintf (stdout,"nastaveni vzorkovani");
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fprintf (stdout,"nastaveni vzorkovani\n");
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		if ((err = snd_pcm_hw_params_set_channels (capture_handle, hw_params, 2)) < 0) {
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		if ((err = snd_pcm_hw_params_set_channels (capture_handle, hw_params, 2)) < 0) {
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			fprintf (stderr, "cannot set channel count (%s)\n",
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			fprintf (stderr, "cannot set channel count (%s)\n",
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				 snd_strerror (err));
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				 snd_strerror (err));
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			exit (1);
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			exit (1);
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		}
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		}
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fprintf (stdout,"nastaveni poctu kanalu");
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fprintf (stdout,"nastaveni poctu kanalu\n");
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		if ((err = snd_pcm_hw_params (capture_handle, hw_params)) < 0) {
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		if ((err = snd_pcm_hw_params (capture_handle, hw_params)) < 0) {
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			fprintf (stderr, "cannot set parameters (%s)\n",
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			fprintf (stderr, "cannot set parameters (%s)\n",
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				 snd_strerror (err));
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				 snd_strerror (err));
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			exit (1);
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			exit (1);
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		}
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		}
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fprintf (stdout,"nastaveni parametru");
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fprintf (stdout,"nastaveni parametru\n");
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		snd_pcm_hw_params_free (hw_params);
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		snd_pcm_hw_params_free (hw_params);
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		if ((err = snd_pcm_prepare (capture_handle)) < 0) {
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		if ((err = snd_pcm_prepare (capture_handle)) < 0) {
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			fprintf (stderr, "cannot prepare audio interface for use (%s)\n",
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			fprintf (stderr, "cannot prepare audio interface for use (%s)\n",
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				 snd_strerror (err));
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				 snd_strerror (err));
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			exit (1);
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			exit (1);
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		}
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		}
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fprintf (stdout,"povoleni audia");
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fprintf (stdout,"povoleni audia\n");
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		for (i = 0; i < 10; ++i) {
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			if ((err = snd_pcm_readi (capture_handle, buf, 128)) != 128) {
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		if ((err = snd_pcm_readi (capture_handle, buf, BUFFER_SIZE)) != BUFFER_SIZE) {
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				fprintf (stderr, "read from audio interface failed (%s)\n",
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				fprintf (stderr, "read from audio interface failed (%s)\n",
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					 snd_strerror (err));
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					 snd_strerror (err));
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				exit (1);
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				exit (1);
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			}
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		}
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		}
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		for (j=0; j < 500; j=j+2) fprintf (stdout,"%u:%d %d\n ",j,buf[j], buf[j+1]);
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		snd_pcm_close (capture_handle);
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		snd_pcm_close (capture_handle);
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		exit (0);
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		exit (0);
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	}
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	}
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