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-rw-r--r--noncore/multimedia/opierec/adpcm.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/noncore/multimedia/opierec/adpcm.h b/noncore/multimedia/opierec/adpcm.h
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+++ b/noncore/multimedia/opierec/adpcm.h
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+/*
+** adpcm.h - include file for adpcm coder.
+**
+** Version 1.0, 7-Jul-92.
+*/
+
+struct adpcm_state {
+ short 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((short [], char [], int, struct adpcm_state *));
+void adpcm_decoder ARGS((char [], short [], int, struct adpcm_state *));