1 /*
2  * Copyright (c) 2022 Omar Polo <op@openbsd.org>
3  *
4  * Permission to use, copy, modify, and distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 #include <sys/types.h>
18 #include <sys/queue.h>
19 #include <sys/uio.h>
20 
21 #include <err.h>
22 #include <event.h>
23 #include <fcntl.h>
24 #include <math.h>
25 #include <inttypes.h>
26 #include <sndio.h>
27 #include <stdio.h>
28 #include <stdint.h>
29 #include <imsg.h>
30 #include <unistd.h>
31 
32 #include <vorbis/codec.h>
33 #include <vorbis/vorbisfile.h>
34 
35 #include "amused.h"
36 
37 #ifndef nitems
38 #define nitems(x) (sizeof(x)/sizeof(x[0]))
39 #endif
40 
41 void
42 play_oggvorbis(int fd)
43 {
44 	static uint8_t pcmout[4096];
45 	FILE *f;
46 	OggVorbis_File vf;
47 	int current_section, eof = 0;
48 
49 	if ((f = fdopen(fd, "r")) == NULL)
50 		err(1, "fdopen");
51 
52 	if (ov_open_callbacks(f, &vf, NULL, 0, OV_CALLBACKS_NOCLOSE) < 0)
53 		errx(1, "input is not an Ogg bitstream");
54 
55 	{
56 		char **ptr;
57 		vorbis_info *vi;
58 
59 		vi = ov_info(&vf, -1);
60 		for (ptr = ov_comment(&vf, -1)->user_comments; *ptr; ++ptr)
61 			printf("%s\n", *ptr);
62 
63 		printf("bitstream is %d channel, %ldHz\n", vi->channels, vi->rate);
64 
65 		if (player_setrate(vi->rate) == -1)
66 			err(1, "player_setrate");
67 	}
68 
69 	while (!eof) {
70 		long ret;
71 
72 		if (player_shouldstop())
73 			break;
74 
75 		ret = ov_read(&vf, pcmout, sizeof(pcmout), 0, 2, 1,
76 		    &current_section);
77 		if (ret == 0)
78 			eof = 1;
79 		else if (ret < 0)
80 			warnx("non-fatal error in the stream %ld", ret);
81 		else {
82 			/* TODO: deal with sample rate changes */
83 			sio_write(hdl, pcmout, ret);
84 		}
85 	}
86 
87 	ov_clear(&vf);
88 }