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authorjacqueline <me@jacqueline.id.au>2023-08-04 20:07:44 +1000
committerjacqueline <me@jacqueline.id.au>2023-08-04 20:07:44 +1000
commit60f767713227b5405b855e6e6e2a0475ecd96bcc (patch)
treefe55b7048e9e7f1f587f465a1845aef9d3b7b731 /lib/libsamplerate/libsamplerate-0.2.2/tests/callback_test.c
parent3b240d1cd5c52caf189ca036a1a841f7e6d84ccd (diff)
downloadtangara-fw-60f767713227b5405b855e6e6e2a0475ecd96bcc.tar.gz
Do our own resampling
Diffstat (limited to 'lib/libsamplerate/libsamplerate-0.2.2/tests/callback_test.c')
-rwxr-xr-xlib/libsamplerate/libsamplerate-0.2.2/tests/callback_test.c238
1 files changed, 0 insertions, 238 deletions
diff --git a/lib/libsamplerate/libsamplerate-0.2.2/tests/callback_test.c b/lib/libsamplerate/libsamplerate-0.2.2/tests/callback_test.c
deleted file mode 100755
index c13d2061..00000000
--- a/lib/libsamplerate/libsamplerate-0.2.2/tests/callback_test.c
+++ /dev/null
@@ -1,238 +0,0 @@
-/*
-** Copyright (c) 2003-2016, Erik de Castro Lopo <erikd@mega-nerd.com>
-** All rights reserved.
-**
-** This code is released under 2-clause BSD license. Please see the
-** file at : https://github.com/libsndfile/libsamplerate/blob/master/COPYING
-*/
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-
-#include <samplerate.h>
-
-#include "util.h"
-
-#define BUFFER_LEN 10000
-#define CB_READ_LEN 256
-
-static void callback_test (int converter, double ratio) ;
-static void end_of_stream_test (int converter) ;
-
-int
-main (void)
-{ static double src_ratios [] =
- { 1.0, 0.099, 0.1, 0.33333333, 0.789, 1.0001, 1.9, 3.1, 9.9
- } ;
-
- int k ;
-
- puts ("") ;
-
- puts (" Zero Order Hold interpolator :") ;
- for (k = 0 ; k < ARRAY_LEN (src_ratios) ; k++)
- callback_test (SRC_ZERO_ORDER_HOLD, src_ratios [k]) ;
-
- puts (" Linear interpolator :") ;
- for (k = 0 ; k < ARRAY_LEN (src_ratios) ; k++)
- callback_test (SRC_LINEAR, src_ratios [k]) ;
-
-#ifdef ENABLE_SINC_FAST_CONVERTER
- puts (" Sinc interpolator :") ;
- for (k = 0 ; k < ARRAY_LEN (src_ratios) ; k++)
- callback_test (SRC_SINC_FASTEST, src_ratios [k]) ;
-#endif
- puts ("") ;
-
- puts (" End of stream test :") ;
- end_of_stream_test (SRC_ZERO_ORDER_HOLD) ;
- end_of_stream_test (SRC_LINEAR) ;
-#ifdef ENABLE_SINC_FAST_CONVERTER
- end_of_stream_test (SRC_SINC_FASTEST) ;
-#endif
-
- puts ("") ;
- return 0 ;
-} /* main */
-
-/*=====================================================================================
-*/
-
-typedef struct
-{ int channels ;
- long count, total ;
- int end_of_data ;
- float data [BUFFER_LEN] ;
-} TEST_CB_DATA ;
-
-static long
-test_callback_func (void *cb_data, float **data)
-{ TEST_CB_DATA *pcb_data ;
-
- long frames ;
-
- if ((pcb_data = cb_data) == NULL)
- return 0 ;
-
- if (data == NULL)
- return 0 ;
-
- if (pcb_data->total - pcb_data->count > CB_READ_LEN)
- frames = CB_READ_LEN / pcb_data->channels ;
- else
- frames = (pcb_data->total - pcb_data->count) / pcb_data->channels ;
-
- *data = pcb_data->data + pcb_data->count ;
- pcb_data->count += frames ;
-
- return frames ;
-} /* test_callback_func */
-
-
-static void
-callback_test (int converter, double src_ratio)
-{ static TEST_CB_DATA test_callback_data ;
- static float output [BUFFER_LEN] ;
-
- SRC_STATE *src_state ;
-
- long read_count, read_total ;
- int error ;
-
- printf ("\tcallback_test (SRC ratio = %6.4f) ........... ", src_ratio) ;
- fflush (stdout) ;
-
- test_callback_data.channels = 2 ;
- test_callback_data.count = 0 ;
- test_callback_data.end_of_data = 0 ;
- test_callback_data.total = ARRAY_LEN (test_callback_data.data) ;
-
- if ((src_state = src_callback_new (test_callback_func, converter, test_callback_data.channels, &error, &test_callback_data)) == NULL)
- { printf ("\n\nLine %d : %s\n\n", __LINE__, src_strerror (error)) ;
- exit (1) ;
- } ;
-
- read_total = 0 ;
- do
- { /* We will be throwing away output data, so just grab as much as possible. */
- read_count = ARRAY_LEN (output) / test_callback_data.channels ;
- read_count = src_callback_read (src_state, src_ratio, read_count, output) ;
- read_total += read_count ;
- }
- while (read_count > 0) ;
-
- if ((error = src_error (src_state)) != 0)
- { printf ("\n\nLine %d : %s\n\n", __LINE__, src_strerror (error)) ;
- exit (1) ;
- } ;
-
- src_delete (src_state) ;
-
- if (fabs (read_total / src_ratio - ARRAY_LEN (test_callback_data.data)) > 2.0)
- { printf ("\n\nLine %d : input / output length mismatch.\n\n", __LINE__) ;
- printf (" input len : %d\n", ARRAY_LEN (test_callback_data.data)) ;
- printf (" output len : %ld (should be %g +/- 2)\n\n", read_total,
- floor (0.5 + src_ratio * ARRAY_LEN (test_callback_data.data))) ;
- exit (1) ;
- } ;
-
- puts ("ok") ;
-
- return ;
-} /* callback_test */
-
-/*=====================================================================================
-*/
-
-static long
-eos_callback_func (void *cb_data, float **data)
-{
- TEST_CB_DATA *pcb_data ;
- long frames ;
-
- if (data == NULL)
- return 0 ;
-
- if ((pcb_data = cb_data) == NULL)
- return 0 ;
-
- /*
- ** Return immediately if there is no more data.
- ** In this case, the output pointer 'data' will not be set and
- ** valgrind should not warn about it.
- */
- if (pcb_data->end_of_data)
- return 0 ;
-
- if (pcb_data->total - pcb_data->count > CB_READ_LEN)
- frames = CB_READ_LEN / pcb_data->channels ;
- else
- frames = (pcb_data->total - pcb_data->count) / pcb_data->channels ;
-
- *data = pcb_data->data + pcb_data->count ;
- pcb_data->count += frames ;
-
- /*
- ** Set end_of_data so that the next call to the callback function will
- ** return zero ocunt without setting the 'data' pointer.
- */
- if (pcb_data->total < 2 * pcb_data->count)
- pcb_data->end_of_data = 1 ;
-
- return frames ;
-} /* eos_callback_data */
-
-
-static void
-end_of_stream_test (int converter)
-{ static TEST_CB_DATA test_callback_data ;
- static float output [BUFFER_LEN] ;
-
- SRC_STATE *src_state ;
-
- double src_ratio = 0.3 ;
- long read_count ;
- int error ;
-
- printf ("\t%-30s ........... ", src_get_name (converter)) ;
- fflush (stdout) ;
-
- test_callback_data.channels = 2 ;
- test_callback_data.count = 0 ;
- test_callback_data.end_of_data = 0 ;
- test_callback_data.total = ARRAY_LEN (test_callback_data.data) ;
-
- if ((src_state = src_callback_new (eos_callback_func, converter, test_callback_data.channels, &error, &test_callback_data)) == NULL)
- { printf ("\n\nLine %d : %s\n\n", __LINE__, src_strerror (error)) ;
- exit (1) ;
- } ;
-
- do
- { /* We will be throwing away output data, so just grab as much as possible. */
- read_count = ARRAY_LEN (output) / test_callback_data.channels ;
- read_count = src_callback_read (src_state, src_ratio, read_count, output) ;
- }
- while (read_count > 0) ;
-
- if ((error = src_error (src_state)) != 0)
- { printf ("\n\nLine %d : %s\n\n", __LINE__, src_strerror (error)) ;
- exit (1) ;
- } ;
-
- src_delete (src_state) ;
-
- if (test_callback_data.end_of_data == 0)
- { printf ("\n\nLine %d : test_callback_data.end_of_data should not be 0."
- " This is a bug in the test.\n\n", __LINE__) ;
- exit (1) ;
- } ;
-
- puts ("ok") ;
- return ;
-} /* end_of_stream_test */