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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 30cff6b60890
children
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1 /*
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2 * twamr-encode-r is a speech encoder utility going from "robe" (raw BE)
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3 * input to RFC 4867 storage format (.amr) output.
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4 */
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5
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6 #include <stdio.h>
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7 #include <stdint.h>
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8 #include <stdlib.h>
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9 #include <string.h>
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10 #include <strings.h>
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11 #include <unistd.h>
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12 #include "../libtwamr/tw_amr.h"
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13 #include "../libtest/roberead.h"
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15 main(argc, argv)
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16 char **argv;
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17 {
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18 char *infname, *outfname, *mode_arg;
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19 FILE *inf, *outf;
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20 struct amr_encoder_state *state;
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21 enum Mode mode_val;
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22 int16_t pcm[160];
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23 struct amr_param_frame frame;
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24 uint8_t out_bytes[AMR_IETF_MAX_PL];
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25 int opt, dtx = 0, vad2 = 0, use_mode_file = 0, rc;
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26 unsigned nbytes;
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27 extern int optind;
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28
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29 while ((opt = getopt(argc, argv, "d2")) != EOF) {
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30 switch (opt) {
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31 case 'd':
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32 dtx = 1;
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33 continue;
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34 case '2':
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35 vad2 = 1;
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36 continue;
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37 default:
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38 usage:
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39 fprintf(stderr,
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40 "usage: %s [-d] [-2] input.robe mode output.amr\n",
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41 argv[0]);
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42 exit(1);
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43 }
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44 }
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45 if (argc != optind + 3)
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46 goto usage;
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47 infname = argv[optind];
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48 mode_arg = argv[optind+1];
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49 outfname = argv[optind+2];
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50
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51 inf = fopen(infname, "r");
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52 if (!inf) {
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53 perror(infname);
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54 exit(1);
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55 }
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56 if (!strncmp(mode_arg, "file:", 5)) {
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57 open_mode_file(mode_arg + 5);
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58 use_mode_file = 1;
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59 } else {
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60 rc = grok_mode_name(mode_arg, &mode_val);
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61 if (rc < 0) {
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62 fprintf(stderr, "error: invalid mode argument \"%s\"\n",
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63 mode_arg);
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64 exit(1);
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65 }
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66 }
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67 outf = fopen(outfname, "w");
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68 if (!outf) {
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69 perror(outfname);
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70 exit(1);
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71 }
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72 state = amr_encoder_create(dtx, vad2);
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73 if (!state) {
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74 perror("amr_encoder_create()");
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75 exit(1);
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76 }
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77 fwrite(amr_file_header_magic, 1, AMR_IETF_HDR_LEN, outf);
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78 for (;;) {
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79 rc = robe_get_pcm_block(inf, pcm);
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80 if (!rc)
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81 break;
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82 if (use_mode_file)
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83 read_mode_file_line(&mode_val);
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84 amr_encode_frame(state, mode_val, pcm, &frame);
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85 nbytes = amr_frame_to_ietf(&frame, out_bytes);
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86 fwrite(out_bytes, 1, nbytes, outf);
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87 }
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88 fclose(outf);
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89 exit(0);
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90 }