FreeCalypso > hg > gsm-codec-lib

annotate libtwamr/dhf_check.c @ 585:3c6bf0d26ee7 default tip

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
TW-TS-005 reader: fix maximum line length bug TW-TS-005 section 4.1 states: The maximum allowed length of each line is 80 characters, not including the OS-specific newline encoding. The implementation of this line length limit in the TW-TS-005 hex file reader function in the present suite was wrong, such that lines of the full maximum length could not be read. Fix it. Note that this bug affects comment lines too, not just actual RTP payloads. Neither Annex A nor Annex B features an RTP payload format that goes to the maximum of 40 bytes, but if a comment line goes to the maximum allowed length of 80 characters not including the terminating newline, the bug will be triggered, necessitating the present fix.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 25 Feb 2025 07:49:28 +0000
parents 9beb01439a90
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
355
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 * This module implements the DHF checking function.
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 */
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 #include <stdint.h>
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 #include <string.h>
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 #include "tw_amr.h"
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 #include "typedef.h"
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 #include "namespace.h"
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 #include "bitno.h"
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 static const Word16 * const dhf_per_mode[8] = {
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 amr_dhf_mr475,
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 amr_dhf_mr515,
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 amr_dhf_mr59,
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 amr_dhf_mr67,
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 amr_dhf_mr74,
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 amr_dhf_mr795,
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 amr_dhf_mr102,
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 amr_dhf_mr122
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 };
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 int amr_check_dhf(const struct amr_param_frame *frame, int first_sub_only)
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 {
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 const Word16 *table;
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 Word16 nparam;
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 if (frame->type != RX_SPEECH_GOOD)
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 return 0;
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 if ((frame->mode & 0x87) == 0x87)
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 table = amr_dhf_gsmefr;
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 else
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 table = dhf_per_mode[frame->mode & 7];
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 if (first_sub_only)
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 nparam = prmnofsf[frame->mode & 7];
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 else
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 nparam = prmno[frame->mode & 7];
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 if (memcmp(frame->param, table, nparam * sizeof(int16_t)))
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 return 0;
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 else
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 return 1;
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 }