#pragma once #include /* See Section 5.1.2.1 of ITU-T V.110 */ #define MAX_D_BITS 48 #define MAX_E_BITS 7 #define MAX_S_BITS 9 #define MAX_X_BITS 2 /*! a 'decoded' representation of a single V.110 frame. contains unpacket D, E, S and X bits */ struct osmo_v110_decoded_frame { ubit_t d_bits[MAX_D_BITS]; ubit_t e_bits[MAX_E_BITS]; ubit_t s_bits[MAX_S_BITS]; ubit_t x_bits[MAX_X_BITS]; }; int osmo_v110_decode_frame(struct osmo_v110_decoded_frame *fr, const ubit_t *ra_bits, size_t n_bits); int osmo_v110_encode_frame(ubit_t *ra_bits, size_t n_bits, const struct osmo_v110_decoded_frame *fr); void osmo_v110_ubit_dump(FILE *outf, const ubit_t *fr, size_t in_len); /*! enum for each supported V.110 synchronous RA1 function (one for each user bitrate) */ enum osmo_v100_sync_ra1_rate { OSMO_V110_SYNC_RA1_600, OSMO_V110_SYNC_RA1_1200, OSMO_V110_SYNC_RA1_2400, OSMO_V110_SYNC_RA1_4800, OSMO_V110_SYNC_RA1_7200, OSMO_V110_SYNC_RA1_9600, OSMO_V110_SYNC_RA1_12000, OSMO_V110_SYNC_RA1_14400, OSMO_V110_SYNC_RA1_19200, OSMO_V110_SYNC_RA1_24000, OSMO_V110_SYNC_RA1_28800, OSMO_V110_SYNC_RA1_38400, _NUM_OSMO_V110_SYNC_RA1 }; extern const ubit_t osmo_v110_e1e2e3[_NUM_OSMO_V110_SYNC_RA1][3]; #define osmo_v110_e1e2e3_set(e_bits, rate) \ memcpy(e_bits, osmo_v110_e1e2e3[rate], 3) #define osmo_v110_e1e2e3_cmp(e_bits, rate) \ memcmp(e_bits, osmo_v110_e1e2e3[rate], 3) int osmo_v110_sync_ra1_get_user_data_chunk_bitlen(enum osmo_v100_sync_ra1_rate rate); int osmo_v110_sync_ra1_get_user_data_rate(enum osmo_v100_sync_ra1_rate rate); int osmo_v110_sync_ra1_get_intermediate_rate(enum osmo_v100_sync_ra1_rate rate); int osmo_v110_sync_ra1_user_to_ir(enum osmo_v100_sync_ra1_rate rate, struct osmo_v110_decoded_frame *fr, const ubit_t *d_in, size_t in_len); int osmo_v110_sync_ra1_ir_to_user(enum osmo_v100_sync_ra1_rate rate, ubit_t *d_out, size_t out_len, const struct osmo_v110_decoded_frame *fr);