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comparison amrefr/tseq-enc.c @ 434:ba5031723ab6

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implement amrefr-tseq-enc test program
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 08 May 2024 02:17:08 +0000
parents efrtest/etsi-enc.c@51678b070c7a
children 026bdc1f0dda
comparison
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433:51678b070c7a 434:ba5031723ab6
1 /*
2 * amrefr-tseq-enc is a test program for our libtwamr-based "alternative EFR"
3 * encoder: it functions just like gsmefr-etsi-enc, but uses libtwamr as
4 * the encoder engine instead of libgsmefr. Libgsmefr functions are still
5 * used for frame packing, but not for actual encoding. Note that there is
6 * no -d option in this version, and no DTX encoding support: a DTX-capable
7 * AMR-EFR hybrid is a beast that is currently outside our capabilities.
8 *
9 * The byte order is LE by default or BE with -b option. Practical testing
10 * will always require some manual byte-swap conversion: t??_efr.cod files
11 * in amr122_efr.zip are shipped in BE, but the corresponding t??.inp files
12 * in the 06.74 package are LE.
13 */
14
15 #include <stdio.h>
16 #include <stdint.h>
17 #include <stdlib.h>
18 #include <string.h>
19 #include <strings.h>
20 #include <unistd.h>
21 #include "../libgsmefr/gsm_efr.h"
22 #include "../libtwamr/tw_amr.h"
23
24 main(argc, argv)
25 char **argv;
26 {
27 char *infname, *outfname;
28 FILE *inf, *outf;
29 struct amr_encoder_state *state;
30 int16_t pcm[160];
31 struct amr_param_frame amr_frame;
32 uint8_t efr_frame[EFR_RTP_FRAME_LEN], bits[250];
33 int opt, rc, big_endian = 0;
34 extern int optind;
35
36 while ((opt = getopt(argc, argv, "b")) != EOF) {
37 switch (opt) {
38 case 'b':
39 big_endian = 1;
40 continue;
41 default:
42 usage:
43 fprintf(stderr, "usage: %s [-b] input.inp output.cod\n",
44 argv[0]);
45 exit(1);
46 }
47 }
48 if (argc != optind + 2)
49 goto usage;
50 infname = argv[optind];
51 outfname = argv[optind+1];
52
53 inf = fopen(infname, "r");
54 if (!inf) {
55 perror(infname);
56 exit(1);
57 }
58 outf = fopen(outfname, "w");
59 if (!outf) {
60 perror(outfname);
61 exit(1);
62 }
63 state = amr_encoder_create(0, 0);
64 if (!state) {
65 perror("amr_encoder_create()");
66 exit(1);
67 }
68 for (;;) {
69 rc = read_input(inf, pcm, infname, big_endian);
70 if (!rc)
71 break;
72 amr_encode_frame(state, MR122, pcm, &amr_frame);
73 amr_dhf_subst_efr(&amr_frame);
74 EFR_params2frame(amr_frame.param, efr_frame);
75 frame2bits(efr_frame, bits);
76 bits[248] = 1;
77 bits[249] = 1;
78 emit_output(outf, bits + 4, 246, big_endian);
79 }
80 fclose(outf);
81 exit(0);
82 }