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comparison efrtest/etsi-dec.c @ 150:da17c7f02c6c

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gsmefr-etsi-dec: add BE support
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 14 Dec 2022 22:04:39 +0000
parents 8ed838709897
children 9f354d2aea13
comparison
equal deleted inserted replaced
149:95d47a34070a 150:da17c7f02c6c
2 * gsmefr-etsi-dec is a test program for our EFR decoder: it reads ETSI's 2 * gsmefr-etsi-dec is a test program for our EFR decoder: it reads ETSI's
3 * .dec format as input and writes raw 16-bit PCM (same as ETSI's *.out) 3 * .dec format as input and writes raw 16-bit PCM (same as ETSI's *.out)
4 * as output, allowing our decoder to be tested with ETSI's official test 4 * as output, allowing our decoder to be tested with ETSI's official test
5 * sequences. 5 * sequences.
6 * 6 *
7 * ETSI input and output files are read and written in LE byte order, 7 * ETSI input and output files are read and written in LE byte order
8 * matching the official test sequences in ts_100725v050200p0.zip. 8 * by default, or in BE byte order if -b option is given.
9 */ 9 */
10 10
11 #include <stdio.h> 11 #include <stdio.h>
12 #include <stdint.h> 12 #include <stdint.h>
13 #include <stdlib.h> 13 #include <stdlib.h>
14 #include <string.h> 14 #include <string.h>
15 #include <strings.h> 15 #include <strings.h>
16 #include "../libgsmefr/gsm_efr.h" 16 #include "../libgsmefr/gsm_efr.h"
17 #include "etsi.h" 17 #include "etsi.h"
18
19 static void
20 write_pcm_be(outf, pcm)
21 FILE *outf;
22 int16_t *pcm;
23 {
24 uint8_t bytes[320], *dp;
25 int16_t samp;
26 unsigned n;
27
28 dp = bytes;
29 for (n = 0; n < 160; n++) {
30 samp = pcm[n];
31 *dp++ = (samp >> 8) & 0xFF;
32 *dp++ = samp & 0xFF;
33 }
34 fwrite(bytes, 2, 160, outf);
35 }
18 36
19 static void 37 static void
20 write_pcm_le(outf, pcm) 38 write_pcm_le(outf, pcm)
21 FILE *outf; 39 FILE *outf;
22 int16_t *pcm; 40 int16_t *pcm;
35 } 53 }
36 54
37 main(argc, argv) 55 main(argc, argv)
38 char **argv; 56 char **argv;
39 { 57 {
58 int big_endian;
59 char *infname, *outfname;
40 FILE *inf, *outf; 60 FILE *inf, *outf;
41 struct EFR_decoder_state *state; 61 struct EFR_decoder_state *state;
42 unsigned frame_no; 62 unsigned frame_no;
43 uint8_t input_bits[ETSI_DEC_NWORDS], frame[EFR_RTP_FRAME_LEN]; 63 uint8_t input_bits[ETSI_DEC_NWORDS], frame[EFR_RTP_FRAME_LEN];
44 int16_t pcm[160]; 64 int16_t pcm[160];
45 int rc; 65 int rc;
46 66
47 if (argc != 3) { 67 if (argc == 3 && argv[1][0] != '-') {
48 fprintf(stderr, "usage: %s input.dec output.out\n", argv[0]); 68 big_endian = 0;
69 infname = argv[1];
70 outfname = argv[2];
71 } else if (argc == 4 && !strcmp(argv[1], "-b")) {
72 big_endian = 1;
73 infname = argv[2];
74 outfname = argv[3];
75 } else {
76 fprintf(stderr, "usage: %s [-b] input.dec output.out\n",
77 argv[0]);
49 exit(1); 78 exit(1);
50 } 79 }
51 inf = fopen(argv[1], "r"); 80 inf = fopen(infname, "r");
52 if (!inf) { 81 if (!inf) {
53 perror(argv[1]); 82 perror(infname);
54 exit(1); 83 exit(1);
55 } 84 }
56 outf = fopen(argv[2], "w"); 85 outf = fopen(outfname, "w");
57 if (!outf) { 86 if (!outf) {
58 perror(argv[2]); 87 perror(outfname);
59 exit(1); 88 exit(1);
60 } 89 }
61 state = EFR_decoder_create(); 90 state = EFR_decoder_create();
62 if (!state) { 91 if (!state) {
63 perror("EFR_decoder_create()"); 92 perror("EFR_decoder_create()");
64 exit(1); 93 exit(1);
65 } 94 }
66 for (frame_no = 0; ; frame_no++) { 95 for (frame_no = 0; ; frame_no++) {
67 rc = read_etsi_bits(inf, 0, input_bits, ETSI_DEC_NWORDS, 96 rc = read_etsi_bits(inf, big_endian, input_bits,
68 argv[1]); 97 ETSI_DEC_NWORDS, infname);
69 if (!rc) 98 if (!rc)
70 break; 99 break;
71 if (input_bits[0] > 1) { 100 if (input_bits[0] > 1) {
72 fprintf(stderr, "error in %s frame #%u: BFI > 1\n", 101 fprintf(stderr, "error in %s frame #%u: BFI > 1\n",
73 argv[1], frame_no); 102 infname, frame_no);
74 exit(1); 103 exit(1);
75 } 104 }
76 bits2frame(input_bits + 1, frame, argv[1], frame_no); 105 bits2frame(input_bits + 1, frame, infname, frame_no);
77 if (input_bits[245] > 2) { 106 if (input_bits[245] > 2) {
78 fprintf(stderr, "error in %s frame #%u: SID > 2\n", 107 fprintf(stderr, "error in %s frame #%u: SID > 2\n",
79 argv[1], frame_no); 108 infname, frame_no);
80 exit(1); 109 exit(1);
81 } 110 }
82 if (input_bits[246] > 1) { 111 if (input_bits[246] > 1) {
83 fprintf(stderr, "error in %s frame #%u: TAF > 1\n", 112 fprintf(stderr, "error in %s frame #%u: TAF > 1\n",
84 argv[1], frame_no); 113 infname, frame_no);
85 exit(1); 114 exit(1);
86 } 115 }
87 rc = EFR_sid_classify(frame); 116 rc = EFR_sid_classify(frame);
88 if (input_bits[245] != rc) { 117 if (input_bits[245] != rc) {
89 fprintf(stderr, 118 fprintf(stderr,
90 "warning: frame #%u has mismatching SID (file says %u, analysis yields %d)\n", 119 "warning: frame #%u has mismatching SID (file says %u, analysis yields %d)\n",
91 frame_no, input_bits[245], rc); 120 frame_no, input_bits[245], rc);
92 } 121 }
93 EFR_decode_frame(state, frame, input_bits[0], input_bits[246], 122 EFR_decode_frame(state, frame, input_bits[0], input_bits[246],
94 pcm); 123 pcm);
95 write_pcm_le(outf, pcm); 124 if (big_endian)
125 write_pcm_be(outf, pcm);
126 else
127 write_pcm_le(outf, pcm);
96 } 128 }
97 fclose(outf); 129 fclose(outf);
98 exit(0); 130 exit(0);
99 } 131 }