8 #include <osmocom/core/endian.h>
31 #if OSMO_IS_LITTLE_ENDIAN
38 #elif OSMO_IS_BIG_ENDIAN
40 uint8_t cmr:4, f:1, ft_hi:3;
41 uint8_t ft_lo:1, q:1, data_start:6;
44 } __attribute__((packed));
47 #define AMR_HDR_BWE_LEN_BITS 10
81 #if OSMO_IS_LITTLE_ENDIAN
90 #elif OSMO_IS_BIG_ENDIAN
92 uint8_t cmr:4, pad1:4;
93 uint8_t f:1, ft:4, q:1, pad2:2;
96 } __attribute__((packed));
98 static inline void *osmo_amr_get_payload(
struct amr_hdr *amrh)
100 return (uint8_t *)amrh +
sizeof(
struct amr_hdr);
115 #define AMR_FT_GSM_EFR_SID 9
116 #define AMR_FT_TDMA_EFR_SID 10
117 #define AMR_FT_PDC_EFR_SID 11
119 #define AMR_FT_NO_DATA 15
120 #define AMR_FT_MAX 16
127 #define AMR_FT_0_LEN_BITS 95
128 #define AMR_FT_1_LEN_BITS 103
129 #define AMR_FT_2_LEN_BITS 118
130 #define AMR_FT_3_LEN_BITS 134
131 #define AMR_FT_4_LEN_BITS 148
132 #define AMR_FT_5_LEN_BITS 159
133 #define AMR_FT_6_LEN_BITS 204
134 #define AMR_FT_7_LEN_BITS 244
135 #define AMR_FT_SID_LEN_BITS 39
136 #define AMR_FT_GSM_EFR_SID_LEN_BITS 43
137 #define AMR_FT_TDMA_EFR_SID_LEN_BITS 38
138 #define AMR_FT_PDC_EFR_SID_LEN_BITS 37
140 #define AMR_FT_NO_DATA_LEN_BITS 0
146 #define AMR_FT_0_LEN ((AMR_FT_0_LEN_BITS+7)/8)
147 #define AMR_FT_1_LEN ((AMR_FT_1_LEN_BITS+7)/8)
148 #define AMR_FT_2_LEN ((AMR_FT_2_LEN_BITS+7)/8)
149 #define AMR_FT_3_LEN ((AMR_FT_3_LEN_BITS+7)/8)
150 #define AMR_FT_4_LEN ((AMR_FT_4_LEN_BITS+7)/8)
151 #define AMR_FT_5_LEN ((AMR_FT_5_LEN_BITS+7)/8)
152 #define AMR_FT_6_LEN ((AMR_FT_6_LEN_BITS+7)/8)
153 #define AMR_FT_7_LEN ((AMR_FT_7_LEN_BITS+7)/8)
154 #define AMR_FT_SID_LEN ((AMR_FT_SID_LEN_BITS+7)/8)
155 #define AMR_FT_GSM_EFR_SID_LEN ((AMR_FT_GSM_EFR_SID_LEN_BITS+7)/8)
156 #define AMR_FT_TDMA_EFR_SID_LEN ((AMR_FT_TDMA_EFR_SID_LEN_BITS+7)/8)
157 #define AMR_FT_PDC_EFR_SID_LEN ((AMR_FT_PDC_EFR_SID_LEN_BITS+7)/8)
159 #define AMR_FT_NO_DATA_LEN ((AMR_FT_NO_DATA_LEN_BITS+7)/8)
161 int osmo_amr_ft_valid(uint8_t amr_ft);
162 size_t osmo_amr_bytes(uint8_t amr_cmr);
163 size_t osmo_amr_bits(uint8_t amr_ft);
165 bool osmo_amr_is_oa(
const uint8_t *payload,
unsigned int payload_len);
166 int osmo_amr_oa_to_bwe(uint8_t *payload,
unsigned int payload_len);
167 int osmo_amr_bwe_to_oa(uint8_t *payload,
unsigned int payload_len,
168 unsigned int payload_maxlen);
169 int osmo_amr_bwe_to_iuup(uint8_t *payload,
unsigned int payload_len);
170 int osmo_amr_iuup_to_bwe(uint8_t *payload,
unsigned int payload_len,
171 unsigned int payload_maxlen);
172 int osmo_amr_bytes_to_ft(
size_t bytes);