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comparison amrtest/tseq-dec.c @ 430:edbbbf1c4ab1

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implement twamr-tseq-dec test program
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 07 May 2024 23:35:41 +0000
parents amrtest/tseq-enc.c@cf90077b753c
children
comparison
equal deleted inserted replaced
429:3ce30a95769e 430:edbbbf1c4ab1
1 /*
2 * twamr-tseq-dec is a test program for our AMR decoder: it reads
3 * 3GPP AMR *.cod files as input and writes 16-bit linear PCM (raw)
4 * files as output, allowing libtwamr decoder to be tested with the
5 * official test sequences.
6 *
7 * Both input and output are read/written in the host machine's
8 * native byte order.
9 */
10
11 #include <stdio.h>
12 #include <stdint.h>
13 #include <stdlib.h>
14 #include <string.h>
15 #include <strings.h>
16 #include <unistd.h>
17 #include "../libtwamr/tw_amr.h"
18
19 static int
20 read_input(inf, cod, filename_for_errs)
21 FILE *inf;
22 uint16_t *cod;
23 char *filename_for_errs;
24 {
25 int cc;
26
27 cc = fread(cod, 2, AMR_COD_WORDS, inf);
28 if (cc == 0)
29 return 0;
30 if (cc != AMR_COD_WORDS) {
31 fprintf(stderr, "error: short read from %s\n",
32 filename_for_errs);
33 exit(1);
34 }
35 return 1;
36 }
37
38 main(argc, argv)
39 char **argv;
40 {
41 char *infname, *outfname;
42 FILE *inf, *outf;
43 struct amr_decoder_state *state;
44 uint16_t cod[AMR_COD_WORDS];
45 struct amr_param_frame frame;
46 int16_t pcm[160];
47 int opt, use_rxtype = 0, rc;
48 unsigned frame_no;
49 extern int optind;
50
51 while ((opt = getopt(argc, argv, "r")) != EOF) {
52 switch (opt) {
53 case 'r':
54 use_rxtype = 1;
55 continue;
56 default:
57 usage:
58 fprintf(stderr, "usage: %s [-r] input.cod output.out\n",
59 argv[0]);
60 exit(1);
61 }
62 }
63 if (argc != optind + 2)
64 goto usage;
65 infname = argv[optind];
66 outfname = argv[optind+1];
67
68 inf = fopen(infname, "r");
69 if (!inf) {
70 perror(infname);
71 exit(1);
72 }
73 outf = fopen(outfname, "w");
74 if (!outf) {
75 perror(outfname);
76 exit(1);
77 }
78 state = amr_decoder_create();
79 if (!state) {
80 perror("amr_decoder_create()");
81 exit(1);
82 }
83 for (frame_no = 0; ; frame_no++) {
84 rc = read_input(inf, cod, infname);
85 if (!rc)
86 break;
87 rc = amr_frame_from_tseq(cod, use_rxtype, &frame);
88 if (rc < 0) {
89 fprintf(stderr,
90 "error in %s frame %u: amr_frame_from_tseq() returned %d\n",
91 infname, frame_no, rc);
92 exit(1);
93 }
94 amr_decode_frame(state, &frame, pcm);
95 fwrite(pcm, 2, 160, outf);
96 }
97 fclose(outf);
98 exit(0);
99 }