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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/streaming_test.c
parent3b240d1cd5c52caf189ca036a1a841f7e6d84ccd (diff)
downloadtangara-fw-60f767713227b5405b855e6e6e2a0475ecd96bcc.tar.gz
Do our own resampling
Diffstat (limited to 'lib/libsamplerate/libsamplerate-0.2.2/tests/streaming_test.c')
-rwxr-xr-xlib/libsamplerate/libsamplerate-0.2.2/tests/streaming_test.c149
1 files changed, 0 insertions, 149 deletions
diff --git a/lib/libsamplerate/libsamplerate-0.2.2/tests/streaming_test.c b/lib/libsamplerate/libsamplerate-0.2.2/tests/streaming_test.c
deleted file mode 100755
index 45ad2516..00000000
--- a/lib/libsamplerate/libsamplerate-0.2.2/tests/streaming_test.c
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
-** Copyright (c) 2002-2016, 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 <stdlib.h>
-#include <stdio.h>
-#include <math.h>
-
-#include <samplerate.h>
-
-#include "util.h"
-
-#define BUFFER_LEN (1<<15)
-
-#define BLOCK_LEN 100
-
-static void stream_test (int converter, double ratio) ;
-
-int
-main (void)
-{ static double src_ratios [] =
- { 0.3, 0.9, 1.1, 3.0
- } ;
-
- int k ;
-
- puts ("\n Zero Order Hold interpolator:") ;
- for (k = 0 ; k < ARRAY_LEN (src_ratios) ; k++)
- stream_test (SRC_ZERO_ORDER_HOLD, src_ratios [k]) ;
-
- puts ("\n Linear interpolator:") ;
- for (k = 0 ; k < ARRAY_LEN (src_ratios) ; k++)
- stream_test (SRC_LINEAR, src_ratios [k]) ;
-
- puts ("\n Sinc interpolator:") ;
- for (k = 0 ; k < ARRAY_LEN (src_ratios) ; k++)
- stream_test (SRC_SINC_FASTEST, src_ratios [k]) ;
-
- puts ("") ;
-
- return 0 ;
-} /* main */
-
-static void
-stream_test (int converter, double src_ratio)
-{ static float input [BUFFER_LEN], output [BUFFER_LEN] ;
-
- SRC_STATE *src_state ;
- SRC_DATA src_data ;
-
- int input_len, output_len, current_in, current_out ;
- int error, terminate ;
-
- printf ("\tstreaming_test (SRC ratio = %6.4f) ........... ", src_ratio) ;
- fflush (stdout) ;
-
- /* Calculate maximun input and output lengths. */
- if (src_ratio >= 1.0)
- { output_len = BUFFER_LEN ;
- input_len = (int) floor (BUFFER_LEN / src_ratio) ;
- }
- else
- { input_len = BUFFER_LEN ;
- output_len = (int) floor (BUFFER_LEN * src_ratio) ;
- } ;
-
- /* Reduce input_len by 10 so output is longer than necessary. */
- input_len -= 10 ;
-
- if (output_len > BUFFER_LEN)
- { printf ("\n\nLine %d : output_len > BUFFER_LEN\n\n", __LINE__) ;
- exit (1) ;
- } ;
-
- current_in = current_out = 0 ;
-
- /* Perform sample rate conversion. */
- if ((src_state = src_new (converter, 1, &error)) == NULL)
- { printf ("\n\nLine %d : src_new() failed : %s\n\n", __LINE__, src_strerror (error)) ;
- exit (1) ;
- } ;
-
- src_data.end_of_input = 0 ; /* Set this later. */
-
- src_data.data_in = input ;
- src_data.input_frames = BLOCK_LEN ;
-
- src_data.src_ratio = src_ratio ;
-
- src_data.data_out = output ;
- src_data.output_frames = BLOCK_LEN ;
-
- while (1)
- { if ((error = src_process (src_state, &src_data)))
- { printf ("\n\nLine %d : %s\n\n", __LINE__, src_strerror (error)) ;
-
-printf ("src_data.input_frames : %ld\n", src_data.input_frames) ;
-printf ("src_data.output_frames : %ld\n", src_data.output_frames) ;
-
- exit (1) ;
- } ;
-
- if (src_data.end_of_input && src_data.output_frames_gen == 0)
- break ;
-
- current_in += src_data.input_frames_used ;
- current_out += src_data.output_frames_gen ;
-
- src_data.data_in += src_data.input_frames_used ;
- src_data.data_out += src_data.output_frames_gen ;
-
- src_data.input_frames = MIN (BLOCK_LEN, input_len - current_in) ;
- src_data.output_frames = MIN (BLOCK_LEN, output_len - current_out) ;
-
- src_data.end_of_input = (current_in >= input_len) ? 1 : 0 ;
- } ;
-
- src_state = src_delete (src_state) ;
-
- terminate = (int) ceil ((src_ratio >= 1.0) ? src_ratio : 1.0 / src_ratio) ;
-
- if (fabs (current_out - src_ratio * input_len) > 2 * terminate)
- { printf ("\n\nLine %d : bad output data length %d should be %d.\n", __LINE__,
- current_out, (int) floor (src_ratio * input_len)) ;
- printf ("\tsrc_ratio : %.4f\n", src_ratio) ;
- printf ("\tinput_len : %d\n\toutput_len : %d\n\n", input_len, output_len) ;
- exit (1) ;
- } ;
-
- if (current_in != input_len)
- { printf ("\n\nLine %d : unused input.\n", __LINE__) ;
- printf ("\tinput_len : %d\n", input_len) ;
- printf ("\tinput_frames_used : %d\n\n", current_in) ;
- exit (1) ;
- } ;
-
- puts ("ok") ;
-
- return ;
-} /* stream_test */
-