static int set_avtransport_uri(struct action_event *event)
{
if (obtain_instanceid(event, NULL) < 0) {
return -1;
}
char *uri = upnp_get_string(event, "CurrentURI");
if (uri == NULL) {
return -1;
}
service_lock();
char *meta = upnp_get_string(event, "CurrentURIMetaData");
// Transport URI/Meta set now, current URI/Meta when it starts playing.
int requires_meta_update = replace_transport_uri_and_meta(uri, meta);
if (transport_state_ == TRANSPORT_PLAYING) {
// Uh, wrong state.
// Usually, this should not be called while we are PLAYING, only
// STOPPED or PAUSED. But if actually some controller sets this
// while playing, probably the best is to update the current
// current URI/Meta as well to reflect the state best.
replace_current_uri_and_meta(uri, meta);
}
output_set_uri(uri, (requires_meta_update
? update_meta_from_stream
: NULL));
service_unlock();
free(uri);
free(meta);
return 0;
}
static void inform_play_transition_from_output(enum PlayFeedback fb) {
service_lock();
switch (fb) {
case PLAY_STOPPED:
replace_transport_uri_and_meta("", "");
replace_current_uri_and_meta("", "");
change_transport_state(TRANSPORT_STOPPED);
break;
case PLAY_STARTED_NEXT_STREAM: {
const char *av_uri = get_var(TRANSPORT_VAR_NEXT_AV_URI);
const char *av_meta = get_var(TRANSPORT_VAR_NEXT_AV_URI_META);
replace_transport_uri_and_meta(av_uri, av_meta);
replace_current_uri_and_meta(av_uri, av_meta);
replace_var(TRANSPORT_VAR_NEXT_AV_URI, "");
replace_var(TRANSPORT_VAR_NEXT_AV_URI_META, "");
break;
}
}
service_unlock();
}
static int play(struct action_event *event)
{
if (obtain_instanceid(event, NULL) < 0) {
return -1;
}
int rc = 0;
service_lock();
switch (transport_state_) {
// even if already playing, we must restart playback when Play
// action is executed. Kinsky, for example, would not send Stop
// when changing tracks and playback is already in progress -
// it will just set new URI, and send Play command
case TRANSPORT_PLAYING:
case TRANSPORT_STOPPED:
// If we were stopped before, we start a new song now. So just
// set the time to zero now; otherwise we will see the old
// value of the previous song until it updates some fractions
// of a second later.
replace_var(TRANSPORT_VAR_REL_TIME_POS, kZeroTime);
/* >>> fall through */
case TRANSPORT_PAUSED_PLAYBACK:
if (output_play(&inform_play_transition_from_output)) {
upnp_set_error(event, 704, "Playing failed");
rc = -1;
} else {
change_transport_state(TRANSPORT_PLAYING);
const char *av_uri = get_var(TRANSPORT_VAR_AV_URI);
const char *av_meta = get_var(TRANSPORT_VAR_AV_URI_META);
replace_current_uri_and_meta(av_uri, av_meta);
}
break;
case TRANSPORT_NO_MEDIA_PRESENT:
case TRANSPORT_TRANSITIONING:
case TRANSPORT_PAUSED_RECORDING:
case TRANSPORT_RECORDING:
/* action not allowed in these states - error 701 */
upnp_set_error(event, UPNP_TRANSPORT_E_TRANSITION_NA,
"Transition not allowed; allowed=%s",
get_var(TRANSPORT_VAR_CUR_TRANSPORT_ACTIONS));
rc = -1;
break;
}
service_unlock();
return rc;
}
void timerPlay(char *uri)
{
service_lock();
output_stop();
change_transport_state(TRANSPORT_STOPPED);
output_set_uri(uri, NULL);
replace_var(TRANSPORT_VAR_REL_TIME_POS, kZeroTime);
if (output_play(&inform_play_transition_from_output)) {
} else {
change_transport_state(TRANSPORT_PLAYING);
const char *av_uri = get_var(TRANSPORT_VAR_AV_URI);
const char *av_meta = get_var(TRANSPORT_VAR_AV_URI_META);
replace_current_uri_and_meta(av_uri, av_meta);
}
service_unlock();
}
