FreeCalypso > hg > gsm-codec-lib
view frtest/decode-r.c @ 282:9ee8ad3d4d30
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 | 14b627682458 |
children | cfa3006a66da |
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/* * gsmfr-decode-r is like gsmfr-decode, but writes the decoded PCM * output in our "robe" format instead of WAV. */ #include <stdio.h> #include <stdint.h> #include <stdlib.h> #include <gsm.h> #include "../libgsmfrp/gsm_fr_preproc.h" #include "../libtest/binreader.h" #include "../libtest/robewrite.h" main(argc, argv) char **argv; { FILE *binf, *outf; gsm dec_state; struct gsmfr_preproc_state *pp_state; uint8_t frame[BINFILE_MAX_FRAME]; int16_t pcm[160]; int rc, bfi, taf; if (argc != 3) { fprintf(stderr, "usage: %s input.gsm output.robe\n", argv[0]); exit(1); } binf = fopen(argv[1], "r"); if (!binf) { perror(argv[1]); exit(1); } outf = fopen(argv[2], "w"); if (!outf) { perror(argv[2]); exit(1); } dec_state = gsm_create(); if (!dec_state) { fprintf(stderr, "gsm_create() failed!\n"); exit(1); } pp_state = gsmfr_preproc_create(); if (!pp_state) { fprintf(stderr, "gsmfr_preproc_create() failed!\n"); exit(1); } for (;;) { rc = binfile_read_frame(binf, frame); if (rc < 0) { fprintf(stderr, "error: garbage in %s\n", argv[1]); exit(1); } if (!rc) break; if (frame[0] == 0xBF) { bfi = 1; taf = frame[1] & 1; } else if ((frame[0] & 0xF0) == 0xD0) bfi = 0; else { fprintf(stderr, "error: %s is not in FR codec format\n", argv[1]); exit(1); } if (bfi) gsmfr_preproc_bfi(pp_state, taf, frame); else gsmfr_preproc_good_frame(pp_state, frame); gsm_decode(dec_state, frame, pcm); write_pcm_to_robe(outf, pcm); } fclose(outf); exit(0); }