FreeCalypso > hg > gsm-codec-lib
view dev/gsmfr-dhf.c @ 585:3c6bf0d26ee7 default tip
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 | 37dc5c84bbe9 |
children |
line wrap: on
line source
/* * This program is meant to be run only once by the developer - it * generates RTP-packed form of the decoder homing frame for GSM-FR, * as specified in more recent versions of GSM 06.10 spec. */ #include <stdio.h> #include <stdint.h> #include <stdlib.h> #include <string.h> #include <strings.h> extern void gsmfr_pack_to_rtp(const int16_t *params, uint8_t *frame); static const int16_t larc[8] = {9, 23, 15, 8, 7, 3, 3, 2}; main(argc, argv) char **argv; { int16_t params[76], *pp; uint8_t frame[33]; unsigned m, n; /* gather params */ bcopy(larc, params, sizeof(int16_t) * 8); pp = params + 8; for (m = 0; m < 4; m++) { *pp++ = 40; *pp++ = 0; *pp++ = 0; *pp++ = 0; for (n = 0; n < 13; n++) { if (m == 3 && n == 4) *pp++ = 3; else *pp++ = 4; } } /* generate frame */ gsmfr_pack_to_rtp(params, frame); /* print the frame */ for (n = 0; n < 33; n++) { printf("0x%02X,", frame[n]); if (n == 4 || n == 11 || n == 18 || n == 25 || n == 32) putchar('\n'); else putchar(' '); } exit(0); }