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altos: optimize Viterbi implementation
[fw/altos]
/
src
/
core
/
ao_fec.h
diff --git
a/src/core/ao_fec.h
b/src/core/ao_fec.h
index db5523a36c94c61299e1939087638a4f38aae957..d4f64b740ac85e4a5d48f7be1932f5f3cb03380d 100644
(file)
--- a/
src/core/ao_fec.h
+++ b/
src/core/ao_fec.h
@@
-42,7
+42,7
@@
ao_fec_prepare(uint8_t *in, uint8_t len, uint8_t *out);
* must be 'len' bytes long. 'out' and 'in' can be
* the same array
*/
* must be 'len' bytes long. 'out' and 'in' can be
* the same array
*/
-uint8_t
+void
ao_fec_whiten(uint8_t *in, uint8_t len, uint8_t *out);
/*
ao_fec_whiten(uint8_t *in, uint8_t len, uint8_t *out);
/*
@@
-57,4
+57,12
@@
ao_fec_encode(uint8_t *in, uint8_t len, uint8_t *out);
uint8_t
ao_fec_interleave(uint8_t *in, uint8_t len, uint8_t *out);
uint8_t
ao_fec_interleave(uint8_t *in, uint8_t len, uint8_t *out);
+/*
+ * Decode data. 'in' is one byte per bit, soft decision
+ * 'out' must be len/8 bytes long
+ */
+
+uint8_t
+ao_fec_decode(uint8_t *in, uint16_t in_len, uint8_t *out);
+
#endif /* _AO_FEC_H_ */
#endif /* _AO_FEC_H_ */