FreeCalypso > hg > gsm-codec-lib

annotate libtwamr/dhf_subst.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 f0496507d409
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 /*
431
f0496507d409 libtwamr: implement amr_dhf_subst_efr()
Mychaela Falconia <falcon@freecalypso.org>
parents: 355
diff changeset
2 * The function implemented in this module is an aid for AMR-EFR interworking:
f0496507d409 libtwamr: implement amr_dhf_subst_efr()
Mychaela Falconia <falcon@freecalypso.org>
parents: 355
diff changeset
3 * it is meant to be invoked directly after amr_encode_frame(), it checks
f0496507d409 libtwamr: implement amr_dhf_subst_efr()
Mychaela Falconia <falcon@freecalypso.org>
parents: 355
diff changeset
4 * the encoder output for MR122 DHF, and if the generated frame exactly
f0496507d409 libtwamr: implement amr_dhf_subst_efr()
Mychaela Falconia <falcon@freecalypso.org>
parents: 355
diff changeset
5 * matches MR122 DHF, it is changed to GSM-EFR DHF.
355
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 */
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 #include <stdint.h>
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 #include <string.h>
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 #include "tw_amr.h"
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11
431
f0496507d409 libtwamr: implement amr_dhf_subst_efr()
Mychaela Falconia <falcon@freecalypso.org>
parents: 355
diff changeset
12 void amr_dhf_subst_efr(struct amr_param_frame *frame)
355
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 {
431
f0496507d409 libtwamr: implement amr_dhf_subst_efr()
Mychaela Falconia <falcon@freecalypso.org>
parents: 355
diff changeset
14 if (frame->type != TX_SPEECH_GOOD)
f0496507d409 libtwamr: implement amr_dhf_subst_efr()
Mychaela Falconia <falcon@freecalypso.org>
parents: 355
diff changeset
15 return;
f0496507d409 libtwamr: implement amr_dhf_subst_efr()
Mychaela Falconia <falcon@freecalypso.org>
parents: 355
diff changeset
16 if (frame->mode != MR122)
f0496507d409 libtwamr: implement amr_dhf_subst_efr()
Mychaela Falconia <falcon@freecalypso.org>
parents: 355
diff changeset
17 return;
f0496507d409 libtwamr: implement amr_dhf_subst_efr()
Mychaela Falconia <falcon@freecalypso.org>
parents: 355
diff changeset
18 if (memcmp(frame->param, amr_dhf_mr122, AMR_MAX_PRM * sizeof(int16_t)))
f0496507d409 libtwamr: implement amr_dhf_subst_efr()
Mychaela Falconia <falcon@freecalypso.org>
parents: 355
diff changeset
19 return;
f0496507d409 libtwamr: implement amr_dhf_subst_efr()
Mychaela Falconia <falcon@freecalypso.org>
parents: 355
diff changeset
20 memcpy(frame->param, amr_dhf_gsmefr, AMR_MAX_PRM * sizeof(int16_t));
355
9beb01439a90 libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 }