altos: Incremental viterbi decode

[fw/altos] / src / core / ao_fec.h

diff --git a/src/core/ao_fec.h b/src/core/ao_fec.h
index e3c55d6e240527a3390ebd799a15381005b350bf..4fd398eb8c9f121c32ec234a93ff51789456a447 100644 (file)
--- a/src/core/ao_fec.h
+++ b/src/core/ao_fec.h
@@ -66,8 +66,10 @@ ao_fec_encode(uint8_t *in, uint8_t len, uint8_t *out);
  * 'out' must be len/8 bytes long
  */
 
+#define AO_FEC_DECODE_BLOCK    (8 * 32)        /* callback must return multiples of this many bits */
+
 uint8_t
-ao_fec_decode(uint8_t *in, uint16_t in_len, uint8_t *out, uint8_t out_len);
+ao_fec_decode(uint8_t *in, uint16_t in_len, uint8_t *out, uint8_t out_len, uint16_t (*callback)());
 
 /*
  * Interleave data packed in bytes. 'out' must be 'len' bytes long.