FreeCalypso > hg > gsm-codec-lib

annotate libtest/binreader.c @ 45:4ae1dd43e332

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
libgsmefr/frame2params.c: brown paper bag
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 25 Nov 2022 02:40:21 +0000
parents 820d88b97924
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
10
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 * Here we implement our binfile_read_frame() function.
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 */
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 #include <stdio.h>
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 #include <stdint.h>
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 #include "binreader.h"
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 int binfile_read_frame(FILE *binf, uint8_t *frame)
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 {
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 int cc, morelen;
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 cc = fread(frame, 1, 1, binf);
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 if (cc != 1)
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 return 0;
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 if (frame[0] == 0xBF)
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 morelen = 1;
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 else if ((frame[0] & 0xF0) == 0xC0)
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 morelen = 30;
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 else if ((frame[0] & 0xF0) == 0xD0)
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 morelen = 32;
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 else
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 return -1;
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 cc = fread(frame+1, 1, morelen, binf);
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 if (cc == morelen)
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 return 1;
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 else
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 return -2;
820d88b97924 libtest: implement binary file reader
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 }