cannam@85: /*
cannam@85: ** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com>
cannam@85: **
cannam@85: ** This program is free software; you can redistribute it and/or modify
cannam@85: ** it under the terms of the GNU General Public License as published by
cannam@85: ** the Free Software Foundation; either version 2 of the License, or
cannam@85: ** (at your option) any later version.
cannam@85: **
cannam@85: ** This program is distributed in the hope that it will be useful,
cannam@85: ** but WITHOUT ANY WARRANTY; without even the implied warranty of
cannam@85: ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
cannam@85: ** GNU General Public License for more details.
cannam@85: **
cannam@85: ** You should have received a copy of the GNU General Public License
cannam@85: ** along with this program; if not, write to the Free Software
cannam@85: ** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
cannam@85: */
cannam@85: 
cannam@85: #include "config.h"
cannam@85: 
cannam@85: #include <stdio.h>
cannam@85: #include <stdlib.h>
cannam@85: #include <unistd.h>
cannam@85: #include <math.h>
cannam@85: 
cannam@85: #if HAVE_ALARM && HAVE_SIGNAL && HAVE_SIGALRM
cannam@85: 
cannam@85: #include <signal.h>
cannam@85: 
cannam@85: #include <samplerate.h>
cannam@85: 
cannam@85: #include "util.h"
cannam@85: 
cannam@85: #define	SHORT_BUFFER_LEN	512
cannam@85: #define	LONG_BUFFER_LEN		(1 << 14)
cannam@85: 
cannam@85: typedef struct
cannam@85: {	double ratio ;
cannam@85: 	int count ;
cannam@85: } SRC_PAIR ;
cannam@85: 
cannam@85: static void callback_hang_test (int converter) ;
cannam@85: 
cannam@85: static void alarm_handler (int number) ;
cannam@85: static long input_callback (void *cb_data, float **data) ;
cannam@85: 
cannam@85: 
cannam@85: int
cannam@85: main (void)
cannam@85: {
cannam@85: 	/* Set up SIGALRM handler. */
cannam@85: 	signal (SIGALRM, alarm_handler) ;
cannam@85: 
cannam@85: 	puts ("") ;
cannam@85: 	callback_hang_test (SRC_ZERO_ORDER_HOLD) ;
cannam@85: 	callback_hang_test (SRC_LINEAR) ;
cannam@85: 	callback_hang_test (SRC_SINC_FASTEST) ;
cannam@85: 	puts ("") ;
cannam@85: 
cannam@85: 	return 0 ;
cannam@85: } /* main */
cannam@85: 
cannam@85: 
cannam@85: static void
cannam@85: callback_hang_test (int converter)
cannam@85: {	static float output [LONG_BUFFER_LEN] ;
cannam@85: 	static SRC_PAIR pairs [] =
cannam@85: 	{
cannam@85: 		{ 1.2, 5 }, { 1.1, 1 }, { 1.0, 1 }, { 3.0, 1 }, { 2.0, 1 }, { 0.3, 1 },
cannam@85: 		{ 1.2, 0 }, { 1.1, 10 }, { 1.0, 1 }
cannam@85: 		} ;
cannam@85: 
cannam@85: 
cannam@85: 	SRC_STATE	*src_state ;
cannam@85: 
cannam@85: 	double src_ratio = 1.0 ;
cannam@85: 	int k, error ;
cannam@85: 
cannam@85: 	printf ("\tcallback_hang_test  (%-28s) ....... ", src_get_name (converter)) ;
cannam@85: 	fflush (stdout) ;
cannam@85: 
cannam@85: 	/* Perform sample rate conversion. */
cannam@85: 	src_state = src_callback_new (input_callback, converter, 1, &error, NULL) ;
cannam@85: 	if (src_state == NULL)
cannam@85: 	{	printf ("\n\nLine %d : src_callback_new () failed : %s\n\n", __LINE__, src_strerror (error)) ;
cannam@85: 		exit (1) ;
cannam@85: 		} ;
cannam@85: 
cannam@85: 	for (k = 0 ; k < ARRAY_LEN (pairs) ; k++)
cannam@85: 	{	alarm (1) ;
cannam@85: 		src_ratio = pairs [k].ratio ;
cannam@85: 		src_callback_read (src_state, src_ratio, pairs [k].count, output) ;
cannam@85: 		} ;
cannam@85: 
cannam@85: 	src_state = src_delete (src_state) ;
cannam@85: 
cannam@85: 	alarm (0) ;
cannam@85: 	puts ("ok") ;
cannam@85: 
cannam@85: 	return ;
cannam@85: } /* callback_hang_test */
cannam@85: 
cannam@85: static void
cannam@85: alarm_handler (int number)
cannam@85: {
cannam@85: 	(void) number ;
cannam@85: 	printf ("\n\n    Error : Hang inside src_callback_read() detected. Exiting!\n\n") ;
cannam@85: 	exit (1) ;
cannam@85: } /* alarm_handler */
cannam@85: 
cannam@85: static long
cannam@85: input_callback (void *cb_data, float **data)
cannam@85: {
cannam@85: 	static float buffer [20] ;
cannam@85: 
cannam@85: 	(void) cb_data ;
cannam@85: 	*data = buffer ;
cannam@85: 
cannam@85: 	return ARRAY_LEN (buffer) ;
cannam@85: } /* input_callback */
cannam@85: 
cannam@85: #else
cannam@85: 
cannam@85: int
cannam@85: main (void)
cannam@85: {
cannam@85: 	puts ("\tCan't run this test on this platform.") ;
cannam@85: 	return 0 ;
cannam@85: } /* main */
cannam@85: 
cannam@85: #endif