int dvb_set_channel(stream_t *stream, int card, int n)
{
dvb_channels_list *new_list;
dvb_channel_t *channel;
dvb_priv_t *priv = stream->priv;
char buf[4096];
dvb_state_t *state = (dvb_state_t *) priv->state;
int devno;
int i;
if ((card < 0) || (card > state->count)) {
MP_ERR(stream, "dvb_set_channel: INVALID CARD NUMBER: %d vs %d, abort\n",
card, state->count);
return 0;
}
devno = state->cards[card].devno;
new_list = state->cards[card].list;
if ((n > new_list->NUM_CHANNELS) || (n < 0)) {
MP_ERR(stream, "dvb_set_channel: INVALID CHANNEL NUMBER: %d, for "
"card %d, abort\n", n, card);
return 0;
}
channel = &(new_list->channels[n]);
if (state->is_on) { //the fds are already open and we have to stop the demuxers
for (i = 0; i < state->demux_fds_cnt; i++)
dvb_demux_stop(state->demux_fds[i]);
state->retry = 0;
//empty both the stream's and driver's buffer
while (dvb_streaming_read(stream, buf, 4096) > 0) {}
if (state->card != card) {
dvbin_close(stream);
if (!dvb_open_devices(priv, devno, channel->pids_cnt)) {
MP_ERR(stream, "DVB_SET_CHANNEL, COULDN'T OPEN DEVICES OF "
"CARD: %d, EXIT\n", card);
return 0;
}
} else {
// close all demux_fds with pos > pids required for the new channel
// or open other demux_fds if we have too few
if (!dvb_fix_demuxes(priv, channel->pids_cnt))
return 0;
}
} else {
if (!dvb_open_devices(priv, devno, channel->pids_cnt)) {
MP_ERR(stream, "DVB_SET_CHANNEL2, COULDN'T OPEN DEVICES OF "
"CARD: %d, EXIT\n", card);
return 0;
}
}
state->card = card;
state->list = new_list;
state->retry = 5;
new_list->current = n;
MP_VERBOSE(stream, "DVB_SET_CHANNEL: new channel name=%s, card: %d, "
"channel %d\n", channel->name, card, n);
stream_drop_buffers(stream);
if (channel->freq != state->last_freq) {
if (!dvb_tune(priv, channel->freq, channel->pol, channel->srate,
channel->diseqc, channel->tone,
channel->is_dvb_s2, channel->stream_id, channel->inv,
channel->mod, channel->gi,
channel->trans, channel->bw, channel->cr, channel->cr_lp,
channel->hier, priv->cfg_timeout))
return 0;
}
state->last_freq = channel->freq;
state->is_on = 1;
if (channel->service_id != -1) {
/* We need the PMT-PID in addition.
If it has not yet beem resolved, do it now. */
for (i = 0; i < channel->pids_cnt; i++) {
if (channel->pids[i] == -1) {
MP_VERBOSE(stream, "DVB_SET_CHANNEL: PMT-PID for service %d "
"not resolved yet, parsing PAT...\n",
channel->service_id);
int pmt_pid = dvb_get_pmt_pid(priv, card, channel->service_id);
MP_VERBOSE(stream, "DVB_SET_CHANNEL: Found PMT-PID: %d\n",
pmt_pid);
channel->pids[i] = pmt_pid;
}
}
}
// sets demux filters and restart the stream
for (i = 0; i < channel->pids_cnt; i++) {
if (channel->pids[i] == -1) {
// In case PMT was not resolved, skip it here.
MP_ERR(stream, "DVB_SET_CHANNEL: PMT-PID not found, "
"teletext-decoding may fail.\n");
} else {
if (!dvb_set_ts_filt(priv, state->demux_fds[i], channel->pids[i],
DMX_PES_OTHER))
return 0;
}
}
return 1;
}
int main(int argc, char **argv)
{
struct arguments args;
char *homedir = getenv("HOME");
char *channel = NULL;
int lnb = -1, idx = -1;
int vpid = -1, apid = -1, sid = -1;
int pmtpid = 0;
int pat_fd = -1, pmt_fd = -1, sid_fd = -1;
int audio_fd = -1, video_fd = -1;
int dvr_fd = -1, file_fd = -1;
int err = -1;
int r;
struct dvb_v5_fe_parms *parms = NULL;
const struct argp argp = {
.options = options,
.parser = parse_opt,
.doc = N_("DVB zap utility"),
.args_doc = N_("<channel name> [or <frequency> if in monitor mode]"),
};
#ifdef ENABLE_NLS
setlocale (LC_ALL, "");
bindtextdomain (PACKAGE, LOCALEDIR);
textdomain (PACKAGE);
#endif
memset(&args, 0, sizeof(args));
args.sat_number = -1;
args.lna = LNA_AUTO;
args.input_format = FILE_DVBV5;
argp_parse(&argp, argc, argv, ARGP_NO_HELP | ARGP_NO_EXIT, &idx, &args);
if (idx < argc)
channel = argv[idx];
if (!channel) {
argp_help(&argp, stderr, ARGP_HELP_STD_HELP, PROGRAM_NAME);
return -1;
}
if (args.input_format == FILE_UNKNOWN) {
fprintf(stderr, _("ERROR: Please specify a valid format\n"));
argp_help(&argp, stderr, ARGP_HELP_STD_HELP, PROGRAM_NAME);
return -1;
}
if (!args.traffic_monitor && args.search) {
fprintf(stderr, _("ERROR: search string can be used only on monitor mode\n"));
argp_help(&argp, stderr, ARGP_HELP_STD_HELP, PROGRAM_NAME);
return -1;
}
if (args.lnb_name) {
lnb = dvb_sat_search_lnb(args.lnb_name);
if (lnb < 0) {
printf(_("Please select one of the LNBf's below:\n"));
dvb_print_all_lnb();
exit(1);
} else {
printf(_("Using LNBf "));
dvb_print_lnb(lnb);
}
}
r = asprintf(&args.demux_dev,
"/dev/dvb/adapter%i/demux%i", args.adapter, args.demux);
if (r < 0) {
fprintf(stderr, _("asprintf error\n"));
return -1;
}
r = asprintf(&args.dvr_dev,
"/dev/dvb/adapter%i/dvr%i", args.adapter, args.demux);
if (r < 0) {
fprintf(stderr, _("asprintf error\n"));
return -1;
}
if (args.silent < 2)
fprintf(stderr, _("using demux '%s'\n"), args.demux_dev);
if (!args.confname) {
if (!homedir)
ERROR(_("$HOME not set"));
r = asprintf(&args.confname, "%s/.tzap/%i/%s",
homedir, args.adapter, CHANNEL_FILE);
if (access(args.confname, R_OK)) {
free(args.confname);
r = asprintf(&args.confname, "%s/.tzap/%s",
homedir, CHANNEL_FILE);
}
}
fprintf(stderr, _("reading channels from file '%s'\n"), args.confname);
parms = dvb_fe_open(args.adapter, args.frontend, args.verbose, args.force_dvbv3);
if (!parms)
goto err;
if (lnb >= 0)
parms->lnb = dvb_sat_get_lnb(lnb);
if (args.sat_number > 0)
parms->sat_number = args.sat_number % 3;
parms->diseqc_wait = args.diseqc_wait;
parms->freq_bpf = args.freq_bpf;
parms->lna = args.lna;
r = dvb_fe_set_default_country(parms, args.cc);
if (r < 0)
fprintf(stderr, _("Failed to set the country code:%s\n"), args.cc);
if (parse(&args, parms, channel, &vpid, &apid, &sid))
goto err;
if (setup_frontend(&args, parms) < 0)
goto err;
if (args.exit_after_tuning) {
err = 0;
check_frontend(&args, parms);
goto err;
}
if (args.traffic_monitor) {
signal(SIGTERM, do_timeout);
signal(SIGINT, do_timeout);
if (args.timeout > 0) {
signal(SIGINT, do_timeout);
alarm(args.timeout);
}
err = do_traffic_monitor(&args, parms);
goto err;
}
if (args.rec_psi) {
if (sid < 0) {
fprintf(stderr, _("Service id 0x%04x was not specified at the file\n"),
sid);
goto err;
}
sid_fd = dvb_dmx_open(args.adapter, args.demux);
if (sid_fd < 0) {
perror(_("opening pat demux failed"));
return -1;
}
pmtpid = dvb_get_pmt_pid(sid_fd, sid);
dvb_dmx_close(sid_fd);
if (pmtpid <= 0) {
fprintf(stderr, _("couldn't find pmt-pid for sid %04x\n"),
sid);
goto err;
}
if ((pat_fd = open(args.demux_dev, O_RDWR)) < 0) {
perror(_("opening pat demux failed"));
goto err;
}
if (dvb_set_pesfilter(pat_fd, 0, DMX_PES_OTHER,
args.dvr ? DMX_OUT_TS_TAP : DMX_OUT_DECODER,
args.dvr ? 64 * 1024 : 0) < 0)
goto err;
if ((pmt_fd = open(args.demux_dev, O_RDWR)) < 0) {
perror(_("opening pmt demux failed"));
goto err;
}
if (dvb_set_pesfilter(pmt_fd, pmtpid, DMX_PES_OTHER,
args.dvr ? DMX_OUT_TS_TAP : DMX_OUT_DECODER,
args.dvr ? 64 * 1024 : 0) < 0)
goto err;
}
if (args.all_pids++) {
vpid = 0x2000;
apid = 0;
}
if (vpid >= 0) {
if (args.silent < 2) {
if (vpid == 0x2000)
fprintf(stderr, _("pass all PID's to TS\n"));
else
fprintf(stderr, _("video pid %d\n"), vpid);
}
if ((video_fd = open(args.demux_dev, O_RDWR)) < 0) {
PERROR(_("failed opening '%s'"), args.demux_dev);
goto err;
}
if (args.silent < 2)
fprintf(stderr, _(" dvb_set_pesfilter %d\n"), vpid);
if (vpid == 0x2000) {
if (ioctl(video_fd, DMX_SET_BUFFER_SIZE, 1024 * 1024) == -1)
perror(_("DMX_SET_BUFFER_SIZE failed"));
if (dvb_set_pesfilter(video_fd, vpid, DMX_PES_OTHER,
DMX_OUT_TS_TAP, 0) < 0)
goto err;
} else {
if (dvb_set_pesfilter(video_fd, vpid, DMX_PES_VIDEO,
args.dvr ? DMX_OUT_TS_TAP : DMX_OUT_DECODER,
args.dvr ? 64 * 1024 : 0) < 0)
goto err;
}
}
if (apid > 0) {
if (args.silent < 2)
fprintf(stderr, _("audio pid %d\n"), apid);
if ((audio_fd = open(args.demux_dev, O_RDWR)) < 0) {
PERROR(_("failed opening '%s'"), args.demux_dev);
goto err;
}
if (args.silent < 2)
fprintf(stderr, _(" dvb_set_pesfilter %d\n"), apid);
if (dvb_set_pesfilter(audio_fd, apid, DMX_PES_AUDIO,
args.dvr ? DMX_OUT_TS_TAP : DMX_OUT_DECODER,
args.dvr ? 64 * 1024 : 0) < 0)
goto err;
}
signal(SIGALRM, do_timeout);
signal(SIGTERM, do_timeout);
if (args.timeout > 0) {
signal(SIGINT, do_timeout);
alarm(args.timeout);
}
if (!check_frontend(&args, parms)) {
err = 1;
fprintf(stderr, _("frontend doesn't lock\n"));
goto err;
}
if (args.dvr) {
if (args.filename) {
file_fd = STDOUT_FILENO;
if (strcmp(args.filename, "-") != 0) {
file_fd = open(args.filename,
#ifdef O_LARGEFILE
O_LARGEFILE |
#endif
O_WRONLY | O_CREAT,
0644);
if (file_fd < 0) {
PERROR(_("open of '%s' failed"),
args.filename);
return -1;
}
}
}
if (args.silent < 2)
get_show_stats(&args, parms, 0);
if (file_fd >= 0) {
if ((dvr_fd = open(args.dvr_dev, O_RDONLY)) < 0) {
PERROR(_("failed opening '%s'"), args.dvr_dev);
goto err;
}
if (!timeout_flag)
fprintf(stderr, _("Record to file '%s' started\n"), args.filename);
copy_to_file(dvr_fd, file_fd, args.timeout, args.silent);
} else {
if (!timeout_flag)
fprintf(stderr, _("DVR interface '%s' can now be opened\n"), args.dvr_dev);
get_show_stats(&args, parms, 1);
}
if (args.silent < 2)
get_show_stats(&args, parms, 0);
}
err = 0;
err:
if (file_fd > 0)
close(file_fd);
if (dvr_fd > 0)
close(dvr_fd);
if (pat_fd > 0)
close(pat_fd);
if (pmt_fd > 0)
close(pmt_fd);
if (audio_fd > 0)
close(audio_fd);
if (video_fd > 0)
close(video_fd);
if (parms)
dvb_fe_close(parms);
if (args.confname)
free(args.confname);
if (args.demux_dev)
free(args.demux_dev);
if (args.dvr_dev)
free(args.dvr_dev);
return err;
}