shithub: libsamplerate

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ref: b2cc20febf5d8bc50eaa4d6ad03c67d6f303d77f
parent: 4d82b20a5f76a56f9dafb714de102ab43cbd18cd
author: Erik de Castro Lopo <erikd@miles>
date: Wed Aug 10 23:59:11 EDT 2005 

termination_test.c : Add sanity test to check first output sample after reset.


--- a/tests/termination_test.c
+++ b/tests/termination_test.c
@@ -28,7 +28,7 @@
 #define	LONG_BUFFER_LEN		((1 << 16) - 20)
 
 static void stream_test (int converter, double ratio) ;
-static void term_test (int converter, double ratio) ;
+static void init_term_test (int converter, double ratio) ;
 
 static int	next_block_length (int reset) ;
 
@@ -44,7 +44,7 @@
 	puts ("\n    Zero Order Hold interpolator:") ;
 
 	for (k = 0 ; k < ARRAY_LEN (src_ratios) ; k++)
-		term_test (SRC_ZERO_ORDER_HOLD, src_ratios [k]) ;
+		init_term_test (SRC_ZERO_ORDER_HOLD, src_ratios [k]) ;
 	puts ("") ;
 	for (k = 0 ; k < ARRAY_LEN (src_ratios) ; k++)
 		stream_test (SRC_ZERO_ORDER_HOLD, src_ratios [k]) ;
@@ -52,7 +52,7 @@
 
 	puts ("\n    Linear interpolator:") ;
 	for (k = 0 ; k < ARRAY_LEN (src_ratios) ; k++)
-		term_test (SRC_LINEAR, src_ratios [k]) ;
+		init_term_test (SRC_LINEAR, src_ratios [k]) ;
 	puts ("") ;
 	for (k = 0 ; k < ARRAY_LEN (src_ratios) ; k++)
 		stream_test (SRC_LINEAR, src_ratios [k]) ;
@@ -60,7 +60,7 @@
 
 	puts ("\n    Sinc interpolator:") ;
 	for (k = 0 ; k < ARRAY_LEN (src_ratios) ; k++)
-		term_test (SRC_SINC_FASTEST, src_ratios [k]) ;
+		init_term_test (SRC_SINC_FASTEST, src_ratios [k]) ;
 	puts ("") ;
 	for (k = 0 ; k < ARRAY_LEN (src_ratios) ; k++)
 		stream_test (SRC_SINC_FASTEST, src_ratios [k]) ;
@@ -71,14 +71,14 @@
 } /* main */
 
 static void
-term_test (int converter, double src_ratio)
+init_term_test (int converter, double src_ratio)
 {	static float input [SHORT_BUFFER_LEN], output [SHORT_BUFFER_LEN] ;
 
 	SRC_DATA	src_data ;
 
-	int input_len, output_len, error, terminate ;
+	int k, input_len, output_len, error, terminate ;
 
-	printf ("\ttermination_test (SRC ratio = %7.4f) .......... ", src_ratio) ;
+	printf ("\tinit_term_test (SRC ratio = %7.4f) .......... ", src_ratio) ;
 	fflush (stdout) ;
 
 	/* Calculate maximun input and output lengths. */
@@ -94,6 +94,9 @@
 	/* Reduce input_len by 10 so output is longer than necessary. */
 	input_len -= 10 ;
 
+	for (k = 0 ; k < ARRAY_LEN (input) ; k++)
+		input [k] = 1.0 ;
+
 	if (output_len > SHORT_BUFFER_LEN)
 	{	printf ("\n\nLine %d : output_len > SHORT_BUFFER_LEN\n\n", __LINE__) ;
 		exit (1) ;
@@ -132,10 +135,16 @@
 		exit (1) ;
 		} ;
 
+	if (fabs (output [0]) < 0.1)
+	{	printf ("\n\nLine %d : First output sample is bad.\n\n", __LINE__) ;
+		printf ("\toutput [0] == %f\n\n", output [0]) ;
+		exit (1) ;
+		}
+
 	puts ("ok") ;
 
 	return ;
-} /* term_test */
+} /* init_term_test */
 
 static void
 stream_test (int converter, double src_ratio)