#ifndef RRBB_H
#define RRBB_H
#define FASTER13 1 // Don't pack 8 samples per byte.
//typedef short slice_t;
/*
* Maximum size (in bytes) of an AX.25 frame including the 2 octet FCS.
*/
#define MAX_FRAME_LEN ((AX25_MAX_PACKET_LEN) + 2)
* Maximum number of bits in AX.25 frame excluding the flags.
* Adequate for extreme case of bit stuffing after every 5 bits
* which could never happen.
#define MAX_NUM_BITS (MAX_FRAME_LEN * 8 * 6 / 5)
typedef struct rrbb_s {
int magic1;
struct rrbb_s* nextp; /* Next pointer to maintain a queue. */
int chan; /* Radio channel from which it was received. */
int subchan; /* Which modem when more than one per channel. */
int slice; /* Which slicer. */
alevel_t alevel; /* Received audio level at time of frame capture. */
unsigned int len; /* Current number of samples in array. */
int is_scrambled; /* Is data scrambled G3RUH / K9NG style? */
int descram_state; /* Descrambler state before first data bit of frame. */
int prev_descram; /* Previous descrambled bit. */
unsigned char fdata[MAX_NUM_BITS];
int magic2;
} *rrbb_t;
rrbb_t rrbb_new (int chan, int subchan, int slice, int is_scrambled, int descram_state, int prev_descram);
void rrbb_clear (rrbb_t b, int is_scrambled, int descram_state, int prev_descram);
static inline /*__attribute__((always_inline))*/ void rrbb_append_bit (rrbb_t b, const unsigned char val)
{
if (b->len >= MAX_NUM_BITS) {
return; /* Silently discard if full. */
}
b->fdata[b->len] = val;
b->len++;
static inline /*__attribute__((always_inline))*/ unsigned char rrbb_get_bit (const rrbb_t b, const int ind)
return (b->fdata[ind]);
void rrbb_chop8 (rrbb_t b);
int rrbb_get_len (rrbb_t b);
//void rrbb_flip_bit (rrbb_t b, unsigned int ind);
void rrbb_delete (rrbb_t b);
void rrbb_set_nextp (rrbb_t b, rrbb_t np);
rrbb_t rrbb_get_nextp (rrbb_t b);
int rrbb_get_chan (rrbb_t b);
int rrbb_get_subchan (rrbb_t b);
int rrbb_get_slice (rrbb_t b);
void rrbb_set_audio_level (rrbb_t b, alevel_t alevel);
alevel_t rrbb_get_audio_level (rrbb_t b);
int rrbb_get_is_scrambled (rrbb_t b);
int rrbb_get_descram_state (rrbb_t b);
int rrbb_get_prev_descram (rrbb_t b);
#endif