2 * Copyright (c) 2022 Omar Polo <op@openbsd.org>
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.
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.
39 struct pollfd *player_pfds;
40 static struct imsgbuf *ibuf;
42 static int stopped = 1;
43 static int nextfd = -1;
44 static int64_t samples;
46 volatile sig_atomic_t halted;
49 player_signal_handler(int signo)
55 player_setup(unsigned int bits, unsigned int rate, unsigned int channels)
59 log_debug("%s: bits=%d, rate=%d, channels=%d", __func__,
60 bits, rate, channels);
64 /* don't stop if the parameters are the same */
65 if (bits == par.bits && channels == par.pchan &&
66 par.rate - fpct <= rate && rate <= par.rate + fpct) {
82 if (!sio_setpar(hdl, &par)) {
83 if (errno == EAGAIN) {
84 nfds = sio_pollfd(hdl, player_pfds + 1, POLLOUT);
85 if (poll(player_pfds + 1, nfds, INFTIM) == -1)
89 log_warnx("invalid params (bits=%d, rate=%d, channels=%d",
90 bits, rate, channels);
93 if (!sio_getpar(hdl, &par)) {
94 log_warnx("can't get params");
98 if (par.bits != bits || par.pchan != channels) {
99 log_warnx("failed to set params");
103 /* TODO: check the sample rate? */
106 if (!sio_start(hdl)) {
107 log_warn("sio_start");
115 player_setduration(int64_t duration)
119 seconds = duration / par.rate;
120 imsg_compose(ibuf, IMSG_LEN, 0, 0, -1, &seconds, sizeof(seconds));
125 player_onmove(void *arg, int delta)
127 static int64_t reported;
131 if (llabs(samples - reported) >= par.rate) {
133 sec = samples / par.rate;
135 imsg_compose(ibuf, IMSG_POS, 0, 0, -1, &sec, sizeof(sec));
141 player_setpos(int64_t pos)
144 player_onmove(NULL, 0);
147 /* process only one message */
149 player_dispatch(int64_t *s, int wait)
151 struct player_seek seek;
161 if ((n = imsg_get(ibuf, &imsg)) == -1)
169 if (poll(&pfd, 1, INFTIM) == -1)
171 if ((n = imsg_read(ibuf)) == -1 && errno != EAGAIN)
174 fatalx("pipe closed");
179 switch (imsg.hdr.type) {
182 fatalx("track already enqueued");
183 if ((nextfd = imsg.fd) == -1)
184 fatalx("%s: got invalid file descriptor", __func__);
185 log_debug("song enqueued");
195 if (IMSG_DATA_SIZE(imsg) != sizeof(seek))
196 fatalx("wrong size for seek ctl");
197 memcpy(&seek, imsg.data, sizeof(seek));
198 *s = seek.offset * par.rate;
205 fatalx("unknown imsg %d", imsg.hdr.type);
213 player_senderr(const char *errstr)
218 len = strlen(errstr) + 1;
220 imsg_compose(ibuf, IMSG_ERR, 0, 0, -1, errstr, len);
227 imsg_compose(ibuf, IMSG_EOF, 0, 0, -1, NULL, 0);
232 player_playnext(const char **errstr)
234 static char buf[512];
238 assert(nextfd != -1);
241 /* reset samples and set position to zero */
243 imsg_compose(ibuf, IMSG_POS, 0, 0, -1, &samples, sizeof(samples));
246 r = read(fd, buf, sizeof(buf));
248 /* 8 byte is the larger magic number */
250 *errstr = "read failed";
254 if (lseek(fd, 0, SEEK_SET) == -1) {
255 *errstr = "lseek failed";
259 if (memcmp(buf, "fLaC", 4) == 0)
260 return play_flac(fd, errstr);
261 if (memcmp(buf, "ID3", 3) == 0 ||
262 memcmp(buf, "\xFF\xFB", 2) == 0)
263 return play_mp3(fd, errstr);
264 if (memmem(buf, r, "OpusHead", 8) != NULL)
265 return play_opus(fd, errstr);
266 if (memmem(buf, r, "OggS", 4) != NULL)
267 return play_oggvorbis(fd, errstr);
269 *errstr = "unknown file type";
276 player_pause(int64_t *s)
280 r = player_dispatch(s, 1);
281 return r == IMSG_RESUME || r == IMSG_CTL_SEEK;
285 player_shouldstop(int64_t *s, int wait)
287 switch (player_dispatch(s, wait)) {
300 play(const void *buf, size_t len, int64_t *s)
303 int nfds, revents, r, wait;
307 nfds = sio_pollfd(hdl, player_pfds + 1, POLLOUT);
308 r = poll(player_pfds, nfds + 1, INFTIM);
312 wait = player_pfds[0].revents & (POLLHUP|POLLIN);
313 if (player_shouldstop(s, wait)) {
319 revents = sio_revents(hdl, player_pfds + 1);
320 if (revents & POLLHUP)
321 fatalx("sndio hang-up");
322 if (revents & POLLOUT) {
323 w = sio_write(hdl, buf, len);
333 player(int debug, int verbose)
337 log_init(debug, LOG_DAEMON);
338 log_setverbose(verbose);
340 setproctitle("player");
341 log_procinit("player");
352 if ((hdl = sio_open(SIO_DEVANY, SIO_PLAY, 1)) == NULL)
355 sio_onmove(hdl, player_onmove, NULL);
357 /* allocate one extra for imsg */
358 player_pfds = calloc(sio_nfds(hdl) + 1, sizeof(*player_pfds));
359 if (player_pfds == NULL)
362 player_pfds[0].events = POLLIN;
363 player_pfds[0].fd = 3;
365 ibuf = xmalloc(sizeof(*ibuf));
368 signal(SIGINT, player_signal_handler);
369 signal(SIGTERM, player_signal_handler);
371 signal(SIGHUP, SIG_IGN);
372 signal(SIGPIPE, SIG_IGN);
374 if (pledge("stdio recvfd audio", NULL) == -1)
378 const char *errstr = NULL;
381 player_dispatch(NULL, 1);
383 r = player_playnext(&errstr);
385 player_senderr(errstr);