FreeCalypso > hg > gsm-codec-lib

annotate libgsmefr/frame2params.c @ 282:9ee8ad3d4d30

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
frtest: rm gsmfr-hand-test and gsmfr-max-out utils These hack programs were never properly documented and were written only as part of a debug chase, in pursuit of a bug that ultimately turned out to be in our then-hacky patch to osmo-bts-sysmo, before beginning of proper patches in Osmocom. These hack programs need to be dropped from the present sw package because they depend on old libgsm, and we are eliminating that dependency.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 14 Apr 2024 05:44:47 +0000
parents 4ae1dd43e332
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
34
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 * In this module we implement our EFR_frame2params() unpacking function.
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 */
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 #include "gsm_efr.h"
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 void EFR_frame2params(const uint8_t *frame, int16_t *params)
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 {
45
4ae1dd43e332 libgsmefr/frame2params.c: brown paper bag
Mychaela Falconia <falcon@freecalypso.org>
parents: 34
diff changeset
9 const uint8_t *c = frame;
34
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 /* EFR_MAGIC = (*c >> 4) & 0xF; */
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 params[0] = (*c++ & 0xF) << 3;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 params[0] |= (*c >> 5) & 0x7;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 params[1] = (*c++ & 0x1F) << 3;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 params[1] |= (*c >> 5) & 0x7;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 params[2] = (*c++ & 0x1F) << 4;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 params[2] |= (*c >> 4) & 0xF;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 params[3] = (*c++ & 0xF) << 4;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 params[3] |= (*c >> 4) & 0xF;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 params[4] = (*c++ & 0xF) << 2;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 params[4] |= (*c >> 6) & 0x3;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 params[5] = (*c++ & 0x3F) << 3;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 params[5] |= (*c >> 5) & 0x7;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 params[6] = (*c >> 1) & 0xF;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 params[7] = (*c++ & 0x1) << 3;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 params[7] |= (*c >> 5) & 0x7;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 params[8] = (*c >> 1) & 0xF;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 params[9] = (*c++ & 0x1) << 3;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 params[9] |= (*c >> 5) & 0x7;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 params[10] = (*c >> 1) & 0xF;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 params[11] = (*c++ & 0x1) << 3;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 params[11] |= (*c >> 5) & 0x7;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 params[12] = (*c >> 2) & 0x7;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 params[13] = (*c++ & 0x3) << 1;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 params[13] |= (*c >> 7) & 0x1;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 params[14] = (*c >> 4) & 0x7;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 params[15] = (*c >> 1) & 0x7;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 params[16] = (*c++ & 0x1) << 2;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 params[16] |= (*c >> 6) & 0x3;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 params[17] = (*c >> 1) & 0x1F;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 params[18] = (*c++ & 0x1) << 5;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 params[18] |= (*c >> 3) & 0x1F;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 params[19] = (*c++ & 0x7) << 1;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 params[19] |= (*c >> 7) & 0x1;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 params[20] = (*c >> 3) & 0xF;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 params[21] = (*c++ & 0x7) << 1;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 params[21] |= (*c >> 7) & 0x1;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 params[22] = (*c >> 3) & 0xF;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 params[23] = (*c++ & 0x7) << 1;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 params[23] |= (*c >> 7) & 0x1;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 params[24] = (*c >> 3) & 0xF;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 params[25] = *c++ & 0x7;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 params[26] = (*c >> 5) & 0x7;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 params[27] = (*c >> 2) & 0x7;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 params[28] = (*c++ & 0x3) << 1;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 params[28] |= (*c >> 7) & 0x1;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 params[29] = (*c >> 4) & 0x7;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58 params[30] = (*c++ & 0xF) << 1;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59 params[30] |= (*c >> 7) & 0x1;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60 params[31] = (*c++ & 0x7F) << 2;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
61 params[31] |= (*c >> 6) & 0x3;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
62 params[32] = (*c >> 2) & 0xF;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
63 params[33] = (*c++ & 0x3) << 2;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
64 params[33] |= (*c >> 6) & 0x3;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
65 params[34] = (*c >> 2) & 0xF;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
66 params[35] = (*c++ & 0x3) << 2;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
67 params[35] |= (*c >> 6) & 0x3;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
68 params[36] = (*c >> 2) & 0xF;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
69 params[37] = (*c++ & 0x3) << 2;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
70 params[37] |= (*c >> 6) & 0x3;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
71 params[38] = (*c >> 3) & 0x7;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
72 params[39] = *c++ & 0x7;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
73 params[40] = (*c >> 5) & 0x7;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
74 params[41] = (*c >> 2) & 0x7;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
75 params[42] = (*c++ & 0x3) << 1;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
76 params[42] |= (*c >> 7) & 0x1;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
77 params[43] = (*c >> 2) & 0x1F;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
78 params[44] = (*c++ & 0x3) << 4;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
79 params[44] |= (*c >> 4) & 0xF;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
80 params[45] = *c++ & 0xF;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
81 params[46] = (*c >> 4) & 0xF;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
82 params[47] = *c++ & 0xF;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
83 params[48] = (*c >> 4) & 0xF;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
84 params[49] = *c++ & 0xF;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
85 params[50] = (*c >> 4) & 0xF;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
86 params[51] = (*c >> 1) & 0x7;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
87 params[52] = (*c++ & 0x1) << 2;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
88 params[52] |= (*c >> 6) & 0x3;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
89 params[53] = (*c >> 3) & 0x7;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
90 params[54] = *c++ & 0x7;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
91 params[55] = (*c >> 5) & 0x7;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
92 params[56] = *c++ & 0x1F;
69b9cbca075b libgsmefr: implement frame unpacking
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
93 }