cannam@126: /* cannam@126: ** Copyright (c) 2002-2016, Erik de Castro Lopo cannam@126: ** All rights reserved. cannam@126: ** cannam@126: ** This code is released under 2-clause BSD license. Please see the cannam@126: ** file at : https://github.com/erikd/libsamplerate/blob/master/COPYING cannam@126: */ cannam@126: cannam@126: #include "config.h" cannam@126: cannam@126: #include cannam@126: #include cannam@126: #include cannam@126: #include cannam@126: cannam@126: #if HAVE_ALARM && HAVE_SIGNAL && HAVE_SIGALRM cannam@126: cannam@126: #include cannam@126: cannam@126: #include cannam@126: cannam@126: #include "util.h" cannam@126: cannam@126: #define SHORT_BUFFER_LEN 512 cannam@126: #define LONG_BUFFER_LEN (1 << 14) cannam@126: cannam@126: typedef struct cannam@126: { double ratio ; cannam@126: int count ; cannam@126: } SRC_PAIR ; cannam@126: cannam@126: static void callback_hang_test (int converter) ; cannam@126: cannam@126: static void alarm_handler (int number) ; cannam@126: static long input_callback (void *cb_data, float **data) ; cannam@126: cannam@126: cannam@126: int cannam@126: main (void) cannam@126: { cannam@126: /* Set up SIGALRM handler. */ cannam@126: signal (SIGALRM, alarm_handler) ; cannam@126: cannam@126: puts ("") ; cannam@126: callback_hang_test (SRC_ZERO_ORDER_HOLD) ; cannam@126: callback_hang_test (SRC_LINEAR) ; cannam@126: callback_hang_test (SRC_SINC_FASTEST) ; cannam@126: puts ("") ; cannam@126: cannam@126: return 0 ; cannam@126: } /* main */ cannam@126: cannam@126: cannam@126: static void cannam@126: callback_hang_test (int converter) cannam@126: { static float output [LONG_BUFFER_LEN] ; cannam@126: static SRC_PAIR pairs [] = cannam@126: { cannam@126: { 1.2, 5 }, { 1.1, 1 }, { 1.0, 1 }, { 3.0, 1 }, { 2.0, 1 }, { 0.3, 1 }, cannam@126: { 1.2, 0 }, { 1.1, 10 }, { 1.0, 1 } cannam@126: } ; cannam@126: cannam@126: cannam@126: SRC_STATE *src_state ; cannam@126: cannam@126: double src_ratio = 1.0 ; cannam@126: int k, error ; cannam@126: cannam@126: printf ("\tcallback_hang_test (%-28s) ....... ", src_get_name (converter)) ; cannam@126: fflush (stdout) ; cannam@126: cannam@126: /* Perform sample rate conversion. */ cannam@126: src_state = src_callback_new (input_callback, converter, 1, &error, NULL) ; cannam@126: if (src_state == NULL) cannam@126: { printf ("\n\nLine %d : src_callback_new () failed : %s\n\n", __LINE__, src_strerror (error)) ; cannam@126: exit (1) ; cannam@126: } ; cannam@126: cannam@126: for (k = 0 ; k < ARRAY_LEN (pairs) ; k++) cannam@126: { alarm (1) ; cannam@126: src_ratio = pairs [k].ratio ; cannam@126: src_callback_read (src_state, src_ratio, pairs [k].count, output) ; cannam@126: } ; cannam@126: cannam@126: src_state = src_delete (src_state) ; cannam@126: cannam@126: alarm (0) ; cannam@126: puts ("ok") ; cannam@126: cannam@126: return ; cannam@126: } /* callback_hang_test */ cannam@126: cannam@126: static void cannam@126: alarm_handler (int number) cannam@126: { cannam@126: (void) number ; cannam@126: printf ("\n\n Error : Hang inside src_callback_read() detected. Exiting!\n\n") ; cannam@126: exit (1) ; cannam@126: } /* alarm_handler */ cannam@126: cannam@126: static long cannam@126: input_callback (void *cb_data, float **data) cannam@126: { cannam@126: static float buffer [20] ; cannam@126: cannam@126: (void) cb_data ; cannam@126: *data = buffer ; cannam@126: cannam@126: return ARRAY_LEN (buffer) ; cannam@126: } /* input_callback */ cannam@126: cannam@126: #else cannam@126: cannam@126: int cannam@126: main (void) cannam@126: { cannam@126: puts ("\tCan't run this test on this platform.") ; cannam@126: return 0 ; cannam@126: } /* main */ cannam@126: cannam@126: #endif