#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <gnome.h>
#include "voice.h"

void voice_init(struct _voice *voice)
{
	memset(voice,0,sizeof(struct _voice));

    /* read from config file ... if fail, set default */
	gnome_config_push_prefix("/liteamp/voice/");	
	voice->on = gnome_config_get_bool("on=FALSE");
	gnome_config_pop_prefix();
}

void voice_quit()
{
}

void voice_apply_change(struct _voice *voice)
{
	voice->on = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(voice->chk));
	
	gnome_config_push_prefix("/liteamp/voice/");	
	gnome_config_set_bool("on",voice->on);
	gnome_config_pop_prefix();
}

gint voice_play_it(gint16** d, gint length,struct _voice *voice,gint nch,gint samplerate,gint bitrate)
{
	int x;
	int left, right;
	gint16 *dataptr = (gint16 *)*d;

	
	for (x = 0; x < length; x += 4)
	{
		left = dataptr[1] - dataptr[0];
		right = dataptr[0] - dataptr[1];
		if (left < -32768)
			left = -32768;
		if (left > 32767)
			left = 32767;
		if (right < -32768)
			right = -32768;
		if (right > 32767)
			right = 32767;
		dataptr[0] = left;
		dataptr[1] = right;
		dataptr += 2;
	}

	return length;
}