FreeCalypso > hg > gsm-codec-lib
annotate frtest/max-out.c @ 176:9fb22fa4d373
doc/RTP-analysis: document rtp-g711-extr
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Tue, 27 Dec 2022 01:29:14 +0000 |
parents | a5ffec18e4cd |
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rev | line source |
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1 /* |
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2 * This program reads an extended-libgsm binary file (which must be in FR |
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3 * codec format, not EFR) and performs the following processing, in this |
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4 * order: |
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5 * |
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6 * 1) dumps every frame in human-readable form just like gsmrec-dump; |
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7 * 2) passes the frame stream through our DTX Rx preprocessor; |
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8 * 3) dumps the output from the preprocessor; |
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9 * 4) feeds this output to the standard 06.10 decoder (libgsm); |
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10 * 5) finds the highest-magnitude PCM sample in the decoder output and |
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11 * reports this maximum output magnitude. |
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12 * |
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13 * This program is intended to serve as a debug aid, for troubleshooting |
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14 * of our libgsmfrp+libgsm stack. |
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15 */ |
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16 |
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17 #include <stdio.h> |
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18 #include <stdint.h> |
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19 #include <stdlib.h> |
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20 #include <gsm.h> |
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21 #include "../libgsmfrp/gsm_fr_preproc.h" |
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22 #include "../libtest/binreader.h" |
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23 |
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24 main(argc, argv) |
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25 char **argv; |
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26 { |
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27 FILE *binf; |
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28 gsm dec_state; |
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29 struct gsmfr_preproc_state *pp_state; |
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30 unsigned frame_index; |
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31 uint8_t frame[BINFILE_MAX_FRAME]; |
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32 int16_t pcm[160]; |
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33 gsm_signal fr_params[76]; |
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34 int rc, bfi, taf; |
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35 int i, j, n; |
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36 unsigned samp_abs, samp_max; |
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37 |
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38 if (argc != 2) { |
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39 fprintf(stderr, "usage: %s bin-stream-file\n", argv[0]); |
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40 exit(1); |
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41 } |
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42 binf = fopen(argv[1], "r"); |
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43 if (!binf) { |
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44 perror(argv[1]); |
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45 exit(1); |
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46 } |
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47 dec_state = gsm_create(); |
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48 if (!dec_state) { |
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49 fprintf(stderr, "gsm_create() failed!\n"); |
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50 exit(1); |
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51 } |
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52 pp_state = gsmfr_preproc_create(); |
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53 if (!pp_state) { |
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54 fprintf(stderr, "gsmfr_preproc_create() failed!\n"); |
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55 exit(1); |
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56 } |
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57 for (frame_index = 0; ; frame_index++) { |
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58 rc = binfile_read_frame(binf, frame); |
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59 if (rc < 0) { |
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60 fprintf(stderr, "error: garbage in %s\n", argv[1]); |
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61 exit(1); |
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62 } |
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63 if (!rc) |
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64 break; |
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65 printf("#%u: ", frame_index); |
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66 switch (frame[0] & 0xF0) { |
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67 case 0xB0: |
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68 bfi = 1; |
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69 taf = frame[1] & 1; |
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70 printf("BFI TAF=%u\n", taf); |
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71 break; |
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72 case 0xD0: |
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73 bfi = 0; |
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74 fputs("FR", stdout); |
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75 gsm_explode(dec_state, frame, fr_params); |
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76 n = 0; |
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77 for (i = 0; i < 8; i++) |
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78 printf(" %d", fr_params[n++]); |
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79 putchar('\n'); |
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80 for (i = 0; i < 4; i++) { |
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81 putchar(' '); |
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82 for (j = 0; j < 17; j++) |
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83 printf(" %d", fr_params[n++]); |
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84 putchar('\n'); |
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85 } |
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86 break; |
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87 default: |
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88 fprintf(stderr, "error: %s is not in FR codec format\n", |
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89 argv[1]); |
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90 exit(1); |
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91 } |
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92 if (bfi) |
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93 gsmfr_preproc_bfi(pp_state, taf, frame); |
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94 else |
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95 gsmfr_preproc_good_frame(pp_state, frame); |
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96 fputs("Xform:", stdout); |
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97 gsm_explode(dec_state, frame, fr_params); |
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98 n = 0; |
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99 for (i = 0; i < 8; i++) |
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100 printf(" %d", fr_params[n++]); |
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101 putchar('\n'); |
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102 for (i = 0; i < 4; i++) { |
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103 putchar(' '); |
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104 for (j = 0; j < 17; j++) |
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105 printf(" %d", fr_params[n++]); |
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106 putchar('\n'); |
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107 } |
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108 gsm_decode(dec_state, frame, pcm); |
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109 samp_max = 0; |
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110 for (i = 0; i < 160; i++) { |
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111 if (pcm[i] >= 0) |
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112 samp_abs = pcm[i]; |
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113 else |
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114 samp_abs = -pcm[i]; |
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115 if (samp_abs > samp_max) |
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116 samp_max = samp_abs; |
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117 } |
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118 printf(" MAX=%u\n", samp_max); |
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gsmfr-decode test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
119 } |
f88817a233fb
gsmfr-decode test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
120 exit(0); |
f88817a233fb
gsmfr-decode test program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
121 } |