Harald Welte | 065dab8 | 2022-11-29 23:13:06 +0100 | [diff] [blame] | 1 | #include <stdio.h> |
| 2 | #include <stdlib.h> |
| 3 | #include <stdint.h> |
| 4 | #include <unistd.h> |
| 5 | |
| 6 | #include <osmocom/core/bits.h> |
| 7 | #include <osmocom/isdn/v110.h> |
| 8 | |
| 9 | |
| 10 | static void test_frame_enc(void) |
| 11 | { |
| 12 | struct osmo_v110_decoded_frame fr; |
| 13 | ubit_t bits[80]; |
| 14 | unsigned int i; |
| 15 | |
| 16 | memset(&fr, 0, sizeof(fr)); |
| 17 | |
| 18 | /* we abuse the fact that ubit_t is 8bit so we can actually |
| 19 | * store integer values to clearly identify which bit ends up where */ |
| 20 | |
| 21 | /* D1..D48: 101..148 */ |
| 22 | for (i = 0; i < ARRAY_SIZE(fr.d_bits); i++) |
| 23 | fr.d_bits[i] = 101 + i; |
| 24 | /* E1..E7: 201..207 */ |
| 25 | for (i = 0; i < ARRAY_SIZE(fr.e_bits); i++) |
| 26 | fr.e_bits[i] = 201 + i; |
| 27 | /* S1..S9: 211..219 */ |
| 28 | for (i = 0; i < ARRAY_SIZE(fr.s_bits); i++) |
| 29 | fr.s_bits[i] = 211 + i; |
| 30 | /* X1..X2: 221..222 */ |
| 31 | for (i = 0; i < ARRAY_SIZE(fr.x_bits); i++) |
| 32 | fr.x_bits[i] = 221 + i; |
| 33 | |
| 34 | /* run encoder and dump to stdout */ |
| 35 | memset(bits, 0xff, sizeof(bits)); |
| 36 | osmo_v110_encode_frame(bits, sizeof(bits), &fr); |
| 37 | osmo_v110_ubit_dump(stdout, bits, sizeof(bits)); |
| 38 | |
| 39 | /* run decoder on what we just encoded */ |
| 40 | memset(&fr, 0, sizeof(fr)); |
| 41 | osmo_v110_decode_frame(&fr, bits, sizeof(bits)); |
| 42 | |
| 43 | /* re-encode and dump again 'expout' will match it. */ |
| 44 | memset(bits, 0xff, sizeof(bits)); |
| 45 | osmo_v110_encode_frame(bits, sizeof(bits), &fr); |
| 46 | osmo_v110_ubit_dump(stdout, bits, sizeof(bits)); |
| 47 | } |
| 48 | |
| 49 | |
| 50 | int main(int argc, char **argv) |
| 51 | { |
| 52 | test_frame_enc(); |
| 53 | } |
| 54 | |