audio encoding tester

1 files changed, 21 insertions, 0 deletions

diff --git a/regress/sys/dev/audio/adpcm.h b/regress/sys/dev/audio/adpcm.h
new file mode 100644
index 00000000000..ee8ab459acd
--- /dev/null
+++ b/regress/sys/dev/audio/adpcm.h
@@ -0,0 +1,21 @@
+/*	$OpenBSD: adpcm.h,v 1.1.1.1 2003/02/01 17:58:18 jason Exp $	*/
+
+/*
+** adpcm.h - include file for adpcm coder.
+**
+** Version 1.0, 7-Jul-92.
+*/
+
+struct adpcm_state {
+    int16_t	valprev;	/* Previous output value */
+    char	index;		/* Index into stepsize table */
+};
+
+#ifdef __STDC__
+#define ARGS(x) x
+#else
+#define ARGS(x) ()
+#endif
+
+void adpcm_coder ARGS((int16_t [], char [], int, struct adpcm_state *));
+void adpcm_decoder ARGS((char [], int16_t [], int, struct adpcm_state *));