static int cache_control(stream_t *cache, int cmd, void *arg)
{
struct priv *s = cache->priv;
int r = STREAM_ERROR;
assert(cmd > 0);
pthread_mutex_lock(&s->mutex);
r = cache_get_cached_control(cache, cmd, arg);
if (r != STREAM_ERROR)
goto done;
MP_VERBOSE(s, "blocking for STREAM_CTRL %d\n", cmd);
s->control = cmd;
s->control_arg = arg;
double retry = 0;
while (s->control != CACHE_CTRL_NONE) {
if (mp_cancel_test(s->cache->cancel)) {
s->eof = 1;
r = STREAM_UNSUPPORTED;
goto done;
}
cache_wakeup_and_wait(s, &retry);
}
r = s->control_res;
if (s->control_flush) {
stream_drop_buffers(cache);
cache->pos = s->read_filepos;
}
done:
pthread_mutex_unlock(&s->mutex);
return r;
}
static int do_seek(stream_t *s, int64_t newpos) {
stream_drop_buffers(s);
dvd_seek(s, s->priv,newpos/2048);
return 1;
}
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_config_t *conf = (dvb_config_t *) priv->config;
int devno;
int i;
if((card < 0) || (card > conf->count))
{
MP_ERR(stream, "dvb_set_channel: INVALID CARD NUMBER: %d vs %d, abort\n", card, conf->count);
return 0;
}
devno = conf->cards[card].devno;
new_list = conf->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(priv->is_on) //the fds are already open and we have to stop the demuxers
{
for(i = 0; i < priv->demux_fds_cnt; i++)
dvb_demux_stop(priv->demux_fds[i]);
priv->retry = 0;
while(dvb_streaming_read(stream, buf, 4096) > 0); //empty both the stream's and driver's buffer
if(priv->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;
}
}
priv->card = card;
priv->list = new_list;
priv->retry = 5;
new_list->current = n;
priv->fd = priv->dvr_fd;
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 != priv->last_freq)
if (! dvb_tune(priv, channel->freq, channel->pol, channel->srate, channel->diseqc, channel->tone,
channel->inv, channel->mod, channel->gi, channel->trans, channel->bw, channel->cr, channel->cr_lp, channel->hier, priv->cfg_timeout))
return 0;
priv->last_freq = channel->freq;
priv->is_on = 1;
//sets demux filters and restart the stream
for(i = 0; i < channel->pids_cnt; i++)
{
if(! dvb_set_ts_filt(priv,priv->demux_fds[i], channel->pids[i], DMX_PES_OTHER))
return 0;
}
return 1;
}
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;
}
