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