gsm-net-reveng: trau-decode/amr8-common.c annotate

annotate trau-decode/amr8-common.c @ 106:028307356ba9

trau-decode: new program trau-amr8-dump

author	Mychaela Falconia <falcon@freecalypso.org>
date	Fri, 21 Nov 2025 06:37:46 +0000
parents	699afc9ef063
children	b3ebfbeee32b

rev	line source
0 131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1 /*
101 625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	2 * Here we implement parsing/decoding of TRAU-AMR-8k frames per 3GPP TS 48.061,
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	3 * striving to decode and display as much as we can.
0 131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	4 */
131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	5
131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	6 #include <stdio.h>
131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	7 #include <stdint.h>
101 625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	8 #include <stdbool.h>
0 131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	9 #include <stdlib.h>
131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	10 #include <string.h>
131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	11 #include <strings.h>
79 8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	12 #include "osmo_bits.h"
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	13
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	14 /*
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	15 * AMR TRAU parity (same as EFR)
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	16 *
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	17 * g(x) = x^3 + x^1 + 1
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	18 */
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	19 static const struct osmo_crc8gen_code gsm0860_amr_crc3 = {
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	20 .bits = 3,
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	21 .poly = 0x3,
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	22 .init = 0x0,
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	23 .remainder = 0x7,
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	24 };
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	25
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	26 static int saved_mode, saved_mode_valid;
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	27
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	28 static char *fclass_names[4] = {
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	29 "No_Speech", "Speech_Bad", "Speech_Degraded", "Speech_Good"
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	30 };
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	31
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	32 static char *nospch_class_names[8] = {
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	33 "No_Data", "invalid", "invalid", "invalid",
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	34 "Sid_Bad", "Sid_Update", "Onset", "Sid_First"
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	35 };
0 131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	36
103 4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	37 static const uint8_t params_lsf_475_515[] = {8, 8, 7, 0};
101 625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	38 static const uint8_t params_lsf_59_67_74[] = {8, 9, 9, 0};
91 bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	39
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	40 static const uint8_t params_475_sf1[] = {8, 7, 2, 8, 0};
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	41 static const uint8_t params_475_sf3[] = {4, 7, 2, 8, 0};
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	42 static const uint8_t params_475_sf24[] = {4, 7, 2, 0};
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	43
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	44 static const uint8_t params_515_sf1[] = {8, 7, 2, 6, 0};
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	45 static const uint8_t params_515_sf234[] = {4, 7, 2, 6, 0};
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	46
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	47 static const uint8_t params_59_sf13[] = {8, 9, 2, 6, 0};
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	48 static const uint8_t params_59_sf24[] = {4, 9, 2, 6, 0};
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	49
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	50 static const uint8_t params_67_sf13[] = {8, 11, 3, 7, 0};
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	51 static const uint8_t params_67_sf24[] = {4, 11, 3, 7, 0};
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	52
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	53 static const uint8_t params_74_sf13[] = {8, 13, 4, 7, 0};
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	54 static const uint8_t params_74_sf24[] = {5, 13, 4, 7, 0};
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	55
101 625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	56 static const uint8_t params_sid[] = {3, 8, 9, 9, 6, 0};
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	57
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	58 static const ubit_t bit8_0[8] = { 0, };
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	59
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	60 /!< check sync pattern for AMR No_Speech + low bit rate /
106 028307356ba9 trau-decode: new program trau-amr8-dump Mychaela Falconia <falcon@freecalypso.org> parents: 105 diff changeset	61 bool is_amr_low(const ubit_t *bits)
101 625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	62 {
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	63 int i;
91 bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	64
101 625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	65 /* TS 08.61 Section 6.8.2.1.2 */
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	66 if (memcmp(bits, bit8_0, sizeof(bit8_0)))
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	67 return false;
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	68 if (bits[8] != 1)
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	69 return false;
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	70 if (bits[16] != 1)
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	71 return false;
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	72 if (bits[24] != 0 \|\| bits[25] != 1)
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	73 return false;
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	74 for (i = 32; i < 20 * 8; i += 8) {
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	75 if (bits[i] != 1)
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	76 return false;
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	77 }
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	78 return true;
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	79 }
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	80
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	81 /!< check sync pattern for AMR 6.7kBit/s /
106 028307356ba9 trau-decode: new program trau-amr8-dump Mychaela Falconia <falcon@freecalypso.org> parents: 105 diff changeset	82 bool is_amr_67(const ubit_t *bits)
101 625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	83 {
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	84 int i;
91 bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	85
101 625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	86 /* TS 08.61 Section 6.8.2.1.3 */
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	87 if (memcmp(bits, bit8_0, sizeof(bit8_0)))
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	88 return false;
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	89 if (bits[8] != 1)
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	90 return false;
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	91 if (bits[16] != 1)
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	92 return false;
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	93 if (bits[24] != 1)
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	94 return false;
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	95 if (bits[32] != 1)
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	96 return false;
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	97 if (bits[40] != 0)
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	98 return false;
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	99 for (i = 48; i < 20 * 8; i += 16) {
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	100 if (bits[i] != 1)
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	101 return false;
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	102 }
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	103 return true;
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	104 }
91 bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	105
101 625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	106 /!< check sync pattern for AMR 7.4kBit/s /
106 028307356ba9 trau-decode: new program trau-amr8-dump Mychaela Falconia <falcon@freecalypso.org> parents: 105 diff changeset	107 bool is_amr_74(const ubit_t *bits)
101 625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	108 {
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	109 if (bits[0] != 0 \|\| bits[1] != 0 \|\| bits[2] != 1)
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	110 return false;
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	111 if (bits[8] != 0)
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	112 return false;
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	113 if (bits[16] != 1)
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	114 return false;
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	115 if (bits[24] != 0)
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	116 return false;
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	117
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	118 return true;
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	119 }
91 bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	120
0 131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	121 static unsigned
131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	122 bits_to_num(bits, nbits)
79 8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	123 ubit_t *bits;
0 131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	124 unsigned nbits;
131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	125 {
131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	126 unsigned accum;
131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	127 unsigned n;
131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	128
131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	129 accum = 0;
131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	130 for (n = 0; n < nbits; n++) {
131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	131 accum <<= 1;
131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	132 if (*bits)
131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	133 accum \|= 1;
131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	134 bits++;
131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	135 }
131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	136 return accum;
131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	137 }
131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	138
79 8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	139 static void
91 bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	140 print_generic_params(bits, ltab)
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	141 ubit_t *bits;
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	142 uint8_t *ltab;
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	143 {
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	144 uint8_t *tp;
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	145 unsigned n, p;
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	146
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	147 for (tp = ltab; n = *tp; tp++) {
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	148 p = bits_to_num(bits, n);
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	149 bits += n;
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	150 printf(" %u", p);
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	151 }
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	152 }
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	153
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	154 static void
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	155 print_speech_params(bits, ltab)
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	156 ubit_t *bits;
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	157 uint8_t *ltab;
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	158 {
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	159 fputs(" ", stdout);
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	160 print_generic_params(bits, ltab);
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	161 putchar('\n');
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	162 }
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	163
bbb28d5447f9 trau-parse AMR: extract and print speech parameters Mychaela Falconia <falcon@freecalypso.org> parents: 90 diff changeset	164 static void
93 fa80ce9b076c trau-parse AMR: check spare bits and report not-all-1s Mychaela Falconia <falcon@freecalypso.org> parents: 92 diff changeset	165 check_spare_bits(bits, nbits, desc)
fa80ce9b076c trau-parse AMR: check spare bits and report not-all-1s Mychaela Falconia <falcon@freecalypso.org> parents: 92 diff changeset	166 ubit_t *bits;
fa80ce9b076c trau-parse AMR: check spare bits and report not-all-1s Mychaela Falconia <falcon@freecalypso.org> parents: 92 diff changeset	167 unsigned nbits;
fa80ce9b076c trau-parse AMR: check spare bits and report not-all-1s Mychaela Falconia <falcon@freecalypso.org> parents: 92 diff changeset	168 char *desc;
fa80ce9b076c trau-parse AMR: check spare bits and report not-all-1s Mychaela Falconia <falcon@freecalypso.org> parents: 92 diff changeset	169 {
fa80ce9b076c trau-parse AMR: check spare bits and report not-all-1s Mychaela Falconia <falcon@freecalypso.org> parents: 92 diff changeset	170 while (nbits) {
fa80ce9b076c trau-parse AMR: check spare bits and report not-all-1s Mychaela Falconia <falcon@freecalypso.org> parents: 92 diff changeset	171 if (*bits == 0)
fa80ce9b076c trau-parse AMR: check spare bits and report not-all-1s Mychaela Falconia <falcon@freecalypso.org> parents: 92 diff changeset	172 break;
fa80ce9b076c trau-parse AMR: check spare bits and report not-all-1s Mychaela Falconia <falcon@freecalypso.org> parents: 92 diff changeset	173 bits++;
fa80ce9b076c trau-parse AMR: check spare bits and report not-all-1s Mychaela Falconia <falcon@freecalypso.org> parents: 92 diff changeset	174 nbits--;
fa80ce9b076c trau-parse AMR: check spare bits and report not-all-1s Mychaela Falconia <falcon@freecalypso.org> parents: 92 diff changeset	175 }
fa80ce9b076c trau-parse AMR: check spare bits and report not-all-1s Mychaela Falconia <falcon@freecalypso.org> parents: 92 diff changeset	176 if (!nbits)
fa80ce9b076c trau-parse AMR: check spare bits and report not-all-1s Mychaela Falconia <falcon@freecalypso.org> parents: 92 diff changeset	177 return;
fa80ce9b076c trau-parse AMR: check spare bits and report not-all-1s Mychaela Falconia <falcon@freecalypso.org> parents: 92 diff changeset	178 printf(" Extra data in bits %s\n", desc);
fa80ce9b076c trau-parse AMR: check spare bits and report not-all-1s Mychaela Falconia <falcon@freecalypso.org> parents: 92 diff changeset	179 }
fa80ce9b076c trau-parse AMR: check spare bits and report not-all-1s Mychaela Falconia <falcon@freecalypso.org> parents: 92 diff changeset	180
fa80ce9b076c trau-parse AMR: check spare bits and report not-all-1s Mychaela Falconia <falcon@freecalypso.org> parents: 92 diff changeset	181 static void
103 4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	182 decode_mode_0(c_bits, d_bits)
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	183 ubit_t c_bits, d_bits;
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	184 {
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	185 ubit_t crc_collect[36];
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	186 int crc1, crc2, crc3, crc4;
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	187
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	188 bcopy(c_bits, crc_collect, 5);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	189 bcopy(d_bits + 3, crc_collect + 5, 16);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	190 bcopy(d_bits + 20, crc_collect + 21, 2);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	191 bcopy(d_bits + 23, crc_collect + 23, 9);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	192 bcopy(d_bits + 47, crc_collect + 32, 4);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	193 crc1 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 36,
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	194 d_bits + 51);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	195 crc2 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, d_bits + 54, 7,
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	196 d_bits + 72);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	197 bcopy(d_bits + 75, crc_collect, 2);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	198 bcopy(d_bits + 92, crc_collect + 2, 4);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	199 crc3 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 6,
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	200 d_bits + 96);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	201 crc4 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, d_bits + 99, 2,
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	202 d_bits + 112);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	203 printf(" CRC %s %s %s %s\n",
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	204 crc1 ? "bad" : "good", crc2 ? "bad" : "good",
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	205 crc3 ? "bad" : "good", crc4 ? "bad" : "good");
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	206 if (crc1)
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	207 saved_mode_valid = 0;
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	208 print_speech_params(d_bits + 3, params_lsf_475_515);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	209 print_speech_params(d_bits + 26, params_475_sf1);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	210 print_speech_params(d_bits + 59, params_475_sf24);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	211 print_speech_params(d_bits + 75, params_475_sf3);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	212 print_speech_params(d_bits + 99, params_475_sf24);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	213 check_spare_bits(d_bits, 3, "D1..D3");
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	214 check_spare_bits(d_bits + 115, 126 - 115, "D116..D126");
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	215 }
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	216
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	217 static void
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	218 decode_mode_1(c_bits, d_bits)
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	219 ubit_t c_bits, d_bits;
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	220 {
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	221 ubit_t crc_collect[37];
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	222 int crc1, crc2, crc3, crc4;
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	223
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	224 bcopy(c_bits, crc_collect, 5);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	225 bcopy(d_bits + 5, crc_collect + 5, 16);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	226 bcopy(d_bits + 23, crc_collect + 21, 11);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	227 bcopy(d_bits + 46, crc_collect + 32, 5);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	228 crc1 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 37,
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	229 d_bits + 51);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	230 bcopy(d_bits + 54, crc_collect, 7);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	231 bcopy(d_bits + 73, crc_collect + 7, 5);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	232 crc2 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 12,
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	233 d_bits + 78);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	234 bcopy(d_bits + 81, crc_collect, 2);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	235 bcopy(d_bits + 95, crc_collect + 2, 5);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	236 crc3 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 7,
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	237 d_bits + 100);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	238 bcopy(d_bits + 103, crc_collect, 2);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	239 bcopy(d_bits + 117, crc_collect + 2, 5);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	240 crc4 = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 7,
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	241 d_bits + 122);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	242 printf(" CRC %s %s %s %s\n",
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	243 crc1 ? "bad" : "good", crc2 ? "bad" : "good",
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	244 crc3 ? "bad" : "good", crc4 ? "bad" : "good");
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	245 if (crc1)
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	246 saved_mode_valid = 0;
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	247 print_speech_params(d_bits + 5, params_lsf_475_515);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	248 print_speech_params(d_bits + 28, params_515_sf1);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	249 print_speech_params(d_bits + 59, params_515_sf234);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	250 print_speech_params(d_bits + 81, params_515_sf234);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	251 print_speech_params(d_bits + 103, params_515_sf234);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	252 check_spare_bits(d_bits, 5, "D1..D5");
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	253 if (!d_bits[125])
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	254 puts(" Bit D126 is 0 (expected 1)");
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	255 }
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	256
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	257 static void
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	258 decode_mode_2(c_bits, d_bits)
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	259 ubit_t c_bits, d_bits;
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	260 {
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	261 ubit_t crc_collect[34];
104 9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	262 int crc_stat;
103 4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	263
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	264 bcopy(c_bits, crc_collect, 5);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	265 bcopy(d_bits, crc_collect + 5, 17);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	266 bcopy(d_bits + 26, crc_collect + 22, 8);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	267 bcopy(d_bits + 47, crc_collect + 30, 4);
104 9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	268 crc_stat = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 34,
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	269 d_bits + 51);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	270 printf(" CRC %s\n", crc_stat ? "bad" : "good");
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	271 if (crc_stat)
103 4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	272 saved_mode_valid = 0;
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	273 print_speech_params(d_bits, params_lsf_59_67_74);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	274 print_speech_params(d_bits + 26, params_59_sf13);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	275 print_speech_params(d_bits + 59, params_59_sf24);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	276 print_speech_params(d_bits + 80, params_59_sf13);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	277 print_speech_params(d_bits + 105, params_59_sf24);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	278 }
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	279
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	280 static void (*per_mode_decode[3])() = {
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	281 decode_mode_0,
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	282 decode_mode_1,
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	283 decode_mode_2
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	284 };
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	285
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	286 static void
102 b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	287 decode_speech_frame(c_bits, d_bits)
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	288 ubit_t c_bits, d_bits;
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	289 {
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	290 unsigned c1_3 = bits_to_num(c_bits, 3);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	291 unsigned rif = (c1_3 >= 3);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	292 unsigned c4_5 = bits_to_num(c_bits + 3, 2);
103 4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	293 unsigned mode;
102 b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	294
104 9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	295 printf(" Speech: RIF=%u FC=%s\n", rif, fclass_names[c4_5]);
103 4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	296 if (rif) {
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	297 printf(" CMR=%u\n", c1_3 - 3);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	298 if (!saved_mode_valid) {
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	299 puts(" Mode unknown, cannot decode");
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	300 return;
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	301 }
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	302 mode = saved_mode;
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	303 saved_mode_valid = 0;
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	304 } else {
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	305 mode = c1_3;
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	306 saved_mode = mode;
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	307 saved_mode_valid = 1;
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	308 }
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	309 printf(" Decoding per speech mode %u\n", mode);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	310 per_mode_decode[mode](c_bits, d_bits);
102 b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	311 }
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	312
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	313 static void
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	314 decode_nospeech_frame(c_bits, d_bits)
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	315 ubit_t c_bits, d_bits;
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	316 {
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	317 ubit_t crc_collect[5 + 51];
103 4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	318 unsigned cmi, cmr;
102 b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	319 int crc_stat;
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	320
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	321 printf(" No_Speech: RIF=%u TA=%u UFE/DFE=%u\n", c_bits[2],
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	322 bits_to_num(d_bits, 6), d_bits[6]);
103 4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	323 cmi = bits_to_num(d_bits + 10, 3);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	324 cmr = bits_to_num(d_bits + 13, 3);
102 b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	325 printf(" No_Spch_Class=%u%u%u (%s) CMI=%u CMR=%u\n",
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	326 d_bits[7], d_bits[8], d_bits[9],
103 4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	327 nospch_class_names[bits_to_num(d_bits + 7, 3)], cmi, cmr);
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	328 if (cmi <= 2) {
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	329 saved_mode = cmi;
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	330 saved_mode_valid = 1;
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	331 } else {
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	332 saved_mode_valid = 0;
4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	333 }
102 b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	334 bcopy(c_bits, crc_collect, 5);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	335 bcopy(d_bits, crc_collect + 5, 51);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	336 crc_stat = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect,
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	337 5 + 51, d_bits + 51);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	338 printf(" CRC %s\n", crc_stat ? "bad" : "good");
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	339 fputs(" SID", stdout);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	340 print_generic_params(d_bits + 16, params_sid);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	341 putchar('\n');
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	342 printf(" PAB=%u TAE=%u%u DTXd=%u TFOE=%u\n", d_bits[59], d_bits[60],
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	343 d_bits[61], d_bits[62], d_bits[63]);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	344 check_spare_bits(d_bits + 64, 61, "D65..D125");
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	345 }
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	346
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	347 static void
101 625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	348 handle_amr8_low(frame_bits)
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	349 ubit_t *frame_bits;
79 8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	350 {
102 b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	351 ubit_t *c_bits = frame_bits + 17;
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	352 ubit_t d_bits[126];
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	353
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	354 bcopy(frame_bits + 9, d_bits, 7);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	355 bcopy(frame_bits + 22, d_bits + 7, 2);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	356 bcopy(frame_bits + 26, d_bits + 9, 6);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	357 bcopy(frame_bits + 33, d_bits + 15, 7);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	358 bcopy(frame_bits + 41, d_bits + 22, 7);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	359 bcopy(frame_bits + 49, d_bits + 29, 7);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	360 bcopy(frame_bits + 57, d_bits + 36, 7);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	361 bcopy(frame_bits + 65, d_bits + 43, 7);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	362 bcopy(frame_bits + 73, d_bits + 50, 7);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	363 bcopy(frame_bits + 81, d_bits + 57, 7);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	364 bcopy(frame_bits + 89, d_bits + 64, 7);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	365 bcopy(frame_bits + 97, d_bits + 71, 7);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	366 bcopy(frame_bits + 105, d_bits + 78, 7);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	367 bcopy(frame_bits + 113, d_bits + 85, 7);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	368 bcopy(frame_bits + 121, d_bits + 92, 7);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	369 bcopy(frame_bits + 129, d_bits + 99, 7);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	370 bcopy(frame_bits + 137, d_bits + 106, 7);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	371 bcopy(frame_bits + 145, d_bits + 113, 7);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	372 bcopy(frame_bits + 153, d_bits + 120, 6);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	373
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	374 printf(" C1-C5: %u%u%u %u%u\n", c_bits[0], c_bits[1], c_bits[2],
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	375 c_bits[3], c_bits[4]);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	376 printf(" Config_Prot=%u%u%u Msg_No=%u%u\n", d_bits[54], d_bits[55],
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	377 d_bits[56], d_bits[57], d_bits[58]);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	378 if (c_bits[3] \|\| c_bits[4])
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	379 decode_speech_frame(c_bits, d_bits);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	380 else
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	381 decode_nospeech_frame(c_bits, d_bits);
b59a61446c34 TRAU-AMR-8k: implement No_Speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 101 diff changeset	382 printf(" T=%u\n", frame_bits[159]);
79 8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	383 }
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	384
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	385 static void
104 9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	386 decode_6k7_7k4_common(c_bits, d_bits, mode, cmr_offset)
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	387 ubit_t c_bits, d_bits;
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	388 char *mode;
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	389 {
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	390 unsigned c1_3 = bits_to_num(c_bits, 3);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	391 unsigned rif, fc, cmr_code;
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	392
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	393 printf(" %s speech, C1-C3: %u%u%u\n", mode, c_bits[0], c_bits[1],
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	394 c_bits[2]);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	395 switch (c1_3) {
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	396 case 0:
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	397 rif = 0;
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	398 fc = 1;
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	399 break;
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	400 case 1:
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	401 rif = 0;
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	402 fc = 3;
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	403 break;
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	404 case 2:
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	405 rif = 1;
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	406 fc = 1;
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	407 cmr_code = bits_to_num(d_bits + cmr_offset, 3);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	408 break;
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	409 default:
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	410 rif = 1;
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	411 fc = 3;
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	412 cmr_code = c1_3;
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	413 }
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	414 printf(" RIF=%u FC=%s\n", rif, fclass_names[fc]);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	415 if (rif) {
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	416 if (cmr_code >= 3)
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	417 printf(" CMR=%u\n", cmr_code - 3);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	418 else
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	419 puts(" CMR code in data bits is invalid");
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	420 }
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	421 }
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	422
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	423 static void
101 625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	424 handle_amr8_6k7(frame_bits)
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	425 ubit_t *frame_bits;
79 8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	426 {
104 9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	427 ubit_t *c_bits = frame_bits + 17;
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	428 ubit_t d_bits[137], crc_collect[35];
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	429 int crc_stat;
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	430
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	431 bcopy(frame_bits + 9, d_bits, 7);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	432 bcopy(frame_bits + 20, d_bits + 7, 4);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	433 bcopy(frame_bits + 25, d_bits + 11, 7);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	434 bcopy(frame_bits + 33, d_bits + 18, 7);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	435 bcopy(frame_bits + 41, d_bits + 25, 7);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	436 bcopy(frame_bits + 49, d_bits + 32, 15);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	437 bcopy(frame_bits + 65, d_bits + 47, 15);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	438 bcopy(frame_bits + 81, d_bits + 62, 15);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	439 bcopy(frame_bits + 97, d_bits + 77, 15);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	440 bcopy(frame_bits + 113, d_bits + 92, 15);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	441 bcopy(frame_bits + 129, d_bits + 107, 15);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	442 bcopy(frame_bits + 145, d_bits + 122, 15);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	443
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	444 decode_6k7_7k4_common(c_bits, d_bits, "MR67", 0);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	445 bcopy(c_bits, crc_collect, 3);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	446 bcopy(d_bits, crc_collect + 3, 17);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	447 crc_collect[20] = d_bits[19];
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	448 crc_collect[21] = d_bits[23];
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	449 bcopy(d_bits + 26, crc_collect + 22, 8);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	450 bcopy(d_bits + 48, crc_collect + 30, 5);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	451 crc_stat = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 35,
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	452 d_bits + 55);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	453 printf(" CRC %s\n", crc_stat ? "bad" : "good");
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	454 print_speech_params(d_bits, params_lsf_59_67_74);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	455 print_speech_params(d_bits + 26, params_67_sf13);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	456 print_speech_params(d_bits + 58, params_67_sf24);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	457 print_speech_params(d_bits + 83, params_67_sf13);
9cc76853d291 TRAU-AMR-8k: implement MR67 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 103 diff changeset	458 print_speech_params(d_bits + 112, params_67_sf24);
105 699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	459
103 4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	460 saved_mode_valid = 0;
79 8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	461 }
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	462
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	463 static void
101 625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	464 handle_amr8_7k4(frame_bits)
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	465 ubit_t *frame_bits;
79 8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	466 {
105 699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	467 ubit_t *c_bits = frame_bits + 17;
699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	468 ubit_t d_bits[151], crc_collect[37];
699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	469 int crc_stat;
699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	470
699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	471 bcopy(frame_bits + 3, d_bits, 5);
699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	472 bcopy(frame_bits + 9, d_bits + 5, 7);
699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	473 bcopy(frame_bits + 20, d_bits + 12, 4);
699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	474 bcopy(frame_bits + 25, d_bits + 16, 135);
699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	475
699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	476 decode_6k7_7k4_common(c_bits, d_bits, "MR74", 5);
699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	477 bcopy(c_bits, crc_collect, 3);
699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	478 bcopy(d_bits, crc_collect + 3, 20);
699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	479 bcopy(d_bits + 21, crc_collect + 23, 3);
699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	480 bcopy(d_bits + 26, crc_collect + 26, 6);
699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	481 bcopy(d_bits + 51, crc_collect + 32, 2);
699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	482 bcopy(d_bits + 54, crc_collect + 34, 3);
699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	483 crc_stat = osmo_crc8gen_check_bits(&gsm0860_amr_crc3, crc_collect, 37,
699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	484 d_bits + 58);
699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	485 printf(" CRC %s\n", crc_stat ? "bad" : "good");
699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	486 print_speech_params(d_bits, params_lsf_59_67_74);
699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	487 print_speech_params(d_bits + 26, params_74_sf13);
699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	488 print_speech_params(d_bits + 61, params_74_sf24);
699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	489 print_speech_params(d_bits + 90, params_74_sf13);
699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	490 print_speech_params(d_bits + 122, params_74_sf24);
699afc9ef063 TRAU-AMR-8k: implement MR74 speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 104 diff changeset	491
103 4edffa52802d TRAU-AMR-8k: implement low speech decoding Mychaela Falconia <falcon@freecalypso.org> parents: 102 diff changeset	492 saved_mode_valid = 0;
79 8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	493 }
8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	494
78 00fd38c7c8fe trau-decode: factor out parse-amr.c Mychaela Falconia <falcon@freecalypso.org> parents: 77 diff changeset	495 void
101 625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	496 print_amr8_frame(frame_bits)
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	497 ubit_t *frame_bits;
0 131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	498 {
101 625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	499 if (is_amr_low(frame_bits))
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	500 handle_amr8_low(frame_bits);
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	501 else if (is_amr_67(frame_bits))
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	502 handle_amr8_6k7(frame_bits);
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	503 else if (is_amr_74(frame_bits))
625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	504 handle_amr8_7k4(frame_bits);
79 8c1f20e845a1 trau-parse: more thorough AMR decoding Mychaela Falconia <falcon@freecalypso.org> parents: 78 diff changeset	505 else
101 625be4b2922f trau-decode: start framework for TRAU-AMR-8k decoding Mychaela Falconia <falcon@freecalypso.org> parents: 93 diff changeset	506 puts(" Unrecognized format by sync pattern");
0 131e0f1972bb beginning of trau-parse program Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	507 }

FreeCalypso > hg > gsm-net-reveng

annotate trau-decode/amr8-common.c @ 106:028307356ba9