gboolean
xmr_player_play(XmrPlayer *player)
{
XmrPlayerPrivate *priv;
g_return_val_if_fail( player != NULL, FALSE);
priv = player->priv;
g_return_val_if_fail( priv->playbin != NULL, FALSE);
g_return_val_if_fail( priv->uri != NULL, FALSE);
if (priv->stream_change_pending == FALSE)
{
xmr_debug ("no stream change pending, just restarting playback");
start_state_change (player, GST_STATE_PLAYING, FINISH_TRACK_CHANGE);
}
else if (priv->current_track_finishing)
{
xmr_debug ("current track finishing -> just setting URI on playbin");
g_object_set(priv->playbin, "uri", priv->uri, NULL);
track_change_done(player, NULL);
}
else
{
xmr_debug ("play next song");
start_state_change(player, GST_STATE_READY, SET_NEXT_URI);
}
return TRUE;
}
static gboolean
impl_play (RBPlayer *player, RBPlayerPlayType play_type, gint64 crossfade, GError **error)
{
RBPlayerGst *mp = RB_PLAYER_GST (player);
g_return_val_if_fail (mp->priv->playbin != NULL, FALSE);
mp->priv->track_change = TRUE;
if (mp->priv->stream_change_pending == FALSE) {
rb_debug ("no stream change pending, just restarting playback");
mp->priv->track_change = FALSE;
start_state_change (mp, GST_STATE_PLAYING, FINISH_TRACK_CHANGE);
} else if (mp->priv->current_track_finishing) {
switch (play_type) {
case RB_PLAYER_PLAY_AFTER_EOS:
rb_debug ("current track finishing -> just setting URI on playbin");
g_object_set (mp->priv->playbin, "uri", mp->priv->uri, NULL);
mp->priv->playbin_stream_changing = TRUE;
track_change_done (mp, NULL);
break;
case RB_PLAYER_PLAY_REPLACE:
case RB_PLAYER_PLAY_CROSSFADE:
rb_debug ("current track finishing, waiting for EOS to start next");
break;
default:
g_assert_not_reached ();
}
} else {
gboolean reused = FALSE;
/* try to reuse the stream */
if (mp->priv->prev_uri != NULL) {
g_signal_emit (mp,
signals[CAN_REUSE_STREAM], 0,
mp->priv->uri, mp->priv->prev_uri, mp->priv->playbin,
&reused);
if (reused) {
rb_debug ("reusing stream to switch from %s to %s", mp->priv->prev_uri, mp->priv->uri);
g_signal_emit (player,
signals[REUSE_STREAM], 0,
mp->priv->uri, mp->priv->prev_uri, mp->priv->playbin);
track_change_done (mp, *error);
}
}
/* no stream reuse, so stop, set the new URI, then start */
if (reused == FALSE) {
rb_debug ("not in transition, stopping current track to start the new one");
start_state_change (mp, GST_STATE_READY, SET_NEXT_URI);
}
}
return TRUE;
}
static gboolean
impl_close (RBPlayer *player, const char *uri, GError **error)
{
RBPlayerGst *mp = RB_PLAYER_GST (player);
if ((uri != NULL) && (mp->priv->uri != NULL) && strcmp (mp->priv->uri, uri) == 0) {
rb_debug ("URI doesn't match current playing URI; ignoring");
return TRUE;
}
mp->priv->playing = FALSE;
mp->priv->buffering = FALSE;
mp->priv->current_track_finishing = FALSE;
_destroy_stream_data (mp);
if (uri == NULL) {
_destroy_next_stream_data (mp);
}
g_free (mp->priv->uri);
g_free (mp->priv->prev_uri);
mp->priv->uri = NULL;
mp->priv->prev_uri = NULL;
if (mp->priv->tick_timeout_id != 0) {
g_source_remove (mp->priv->tick_timeout_id);
mp->priv->tick_timeout_id = 0;
}
if (mp->priv->playbin != NULL) {
start_state_change (mp, GST_STATE_NULL, PLAYER_SHUTDOWN);
}
return TRUE;
}
static void
state_change_finished (RBPlayerGst *mp, GError *error)
{
enum StateChangeAction action = mp->priv->state_change_action;
mp->priv->state_change_action = DO_NOTHING;
switch (action) {
case DO_NOTHING:
break;
case PLAYER_SHUTDOWN:
if (error != NULL) {
g_warning ("unable to shut down player pipeline: %s\n", error->message);
}
break;
case SET_NEXT_URI:
if (error != NULL) {
g_warning ("unable to stop playback: %s\n", error->message);
} else {
GstBus *bus;
/* flush bus to ensure tags from the previous stream don't
* get applied to the new one
*/
bus = gst_element_get_bus (mp->priv->playbin);
gst_bus_set_flushing (bus, TRUE);
gst_bus_set_flushing (bus, FALSE);
gst_object_unref (bus);
rb_debug ("setting new playback URI %s", mp->priv->uri);
g_object_set (mp->priv->playbin, "uri", mp->priv->uri, NULL);
start_state_change (mp, GST_STATE_PLAYING, FINISH_TRACK_CHANGE);
}
break;
case STOP_TICK_TIMER:
if (error != NULL) {
g_warning ("unable to pause playback: %s\n", error->message);
} else {
if (mp->priv->tick_timeout_id != 0) {
g_source_remove (mp->priv->tick_timeout_id);
mp->priv->tick_timeout_id = 0;
}
}
break;
case FINISH_TRACK_CHANGE:
track_change_done (mp, error);
break;
}
}
gboolean
xmr_player_resume(XmrPlayer *player)
{
g_return_val_if_fail( player != NULL, FALSE);
g_return_val_if_fail( player->priv->playbin != NULL, FALSE);
if (player->priv->playing)
return TRUE;
start_state_change(player, GST_STATE_PLAYING, FINISH_TRACK_CHANGE);
return TRUE;
}
static void
impl_pause (RBPlayer *player)
{
RBPlayerGst *mp = RB_PLAYER_GST (player);
if (!mp->priv->playing)
return;
mp->priv->playing = FALSE;
g_return_if_fail (mp->priv->playbin != NULL);
start_state_change (mp, GST_STATE_PAUSED, STOP_TICK_TIMER);
}
void
xmr_player_pause(XmrPlayer *player)
{
XmrPlayerPrivate *priv;
g_return_if_fail( player != NULL);
priv = player->priv;
if (!priv->playing)
return ;
priv->playing = FALSE;
g_return_if_fail( priv->playbin != NULL);
start_state_change(player, GST_STATE_PAUSED, STOP_TICK_TIMER);
}
static void
state_change_finished(XmrPlayer *player, GError *error)
{
XmrPlayerPrivate *priv = player->priv;
enum StateChangeAction action = priv->state_change_action;
priv->state_change_action = DO_NOTHING;
switch (action)
{
case DO_NOTHING:
break;
case PLAYER_SHUTDOWN:
if (error != NULL) {
g_warning ("unable to shut down player pipeline: %s\n", error->message);
}
break;
case SET_NEXT_URI:
if (error != NULL) {
g_warning ("unable to stop playback: %s\n", error->message);
} else {
xmr_debug ("setting new playback URI %s", priv->uri);
g_object_set (priv->playbin, "uri", priv->uri, NULL);
start_state_change (player, GST_STATE_PLAYING, FINISH_TRACK_CHANGE);
}
break;
case STOP_TICK_TIMER:
if (error != NULL) {
g_warning ("unable to pause playback: %s\n", error->message);
} else {
if (priv->tick_timeout_id != 0) {
g_source_remove (priv->tick_timeout_id);
priv->tick_timeout_id = 0;
}
}
break;
case FINISH_TRACK_CHANGE:
track_change_done (player, error);
break;
}
}
static gboolean
bus_cb (GstBus *bus, GstMessage *message, RBPlayerGst *mp)
{
const GstStructure *structure;
g_return_val_if_fail (mp != NULL, FALSE);
switch (GST_MESSAGE_TYPE (message)) {
case GST_MESSAGE_ERROR: {
char *debug = NULL;
GError *error = NULL;
GError *sig_error = NULL;
int code;
gboolean emit = TRUE;
gst_message_parse_error (message, &error, &debug);
/* If we've already got an error, ignore 'internal data flow error'
* type messages, as they're too generic to be helpful.
*/
if (mp->priv->emitted_error &&
error->domain == GST_STREAM_ERROR &&
error->code == GST_STREAM_ERROR_FAILED) {
rb_debug ("Ignoring generic error \"%s\"", error->message);
emit = FALSE;
}
code = rb_gst_error_get_error_code (error);
if (emit) {
if (message_from_sink (mp->priv->audio_sink, message)) {
rb_debug ("got error from sink: %s (%s)", error->message, debug);
/* Translators: the parameter here is an error message */
g_set_error (&sig_error,
RB_PLAYER_ERROR,
code,
_("Failed to open output device: %s"),
error->message);
} else {
rb_debug ("got error from stream: %s (%s)", error->message, debug);
g_set_error (&sig_error,
RB_PLAYER_ERROR,
code,
"%s",
error->message);
}
state_change_finished (mp, sig_error);
mp->priv->emitted_error = TRUE;
if (mp->priv->playbin_stream_changing) {
emit_playing_stream_and_tags (mp, TRUE);
}
_rb_player_emit_error (RB_PLAYER (mp), mp->priv->stream_data, sig_error);
}
/* close if not already closing */
if (mp->priv->uri != NULL)
rb_player_close (RB_PLAYER (mp), NULL, NULL);
g_error_free (error);
g_free (debug);
break;
}
case GST_MESSAGE_EOS:
if (mp->priv->stream_change_pending) {
rb_debug ("got EOS with stream change pending");
start_state_change (mp, GST_STATE_READY, SET_NEXT_URI);
} else {
_rb_player_emit_eos (RB_PLAYER (mp), mp->priv->stream_data, FALSE);
}
break;
case GST_MESSAGE_STATE_CHANGED:
{
GstState oldstate;
GstState newstate;
GstState pending;
gst_message_parse_state_changed (message, &oldstate, &newstate, &pending);
if (GST_MESSAGE_SRC (message) == GST_OBJECT (mp->priv->playbin)) {
if (pending == GST_STATE_VOID_PENDING) {
rb_debug ("playbin reached state %s", gst_element_state_get_name (newstate));
state_change_finished (mp, NULL);
}
}
break;
}
case GST_MESSAGE_TAG: {
GstTagList *tags;
if (mp->priv->playbin_stream_changing) {
rb_debug ("ignoring tags during playbin stream change");
break;
}
gst_message_parse_tag (message, &tags);
if (mp->priv->stream_change_pending) {
mp->priv->stream_tags = g_list_append (mp->priv->stream_tags, tags);
} else {
gst_tag_list_foreach (tags, (GstTagForeachFunc) process_tag, mp);
gst_tag_list_free (tags);
}
break;
}
case GST_MESSAGE_BUFFERING: {
gint progress;
structure = gst_message_get_structure (message);
if (!gst_structure_get_int (structure, "buffer-percent", &progress)) {
g_warning ("Could not get value from BUFFERING message");
break;
}
if (progress >= 100) {
mp->priv->buffering = FALSE;
if (mp->priv->playing) {
rb_debug ("buffering done, setting pipeline back to PLAYING");
gst_element_set_state (mp->priv->playbin, GST_STATE_PLAYING);
} else {
rb_debug ("buffering done, leaving pipeline PAUSED");
}
} else if (mp->priv->buffering == FALSE && mp->priv->playing) {
rb_debug ("buffering - temporarily pausing playback");
gst_element_set_state (mp->priv->playbin, GST_STATE_PAUSED);
mp->priv->buffering = TRUE;
}
_rb_player_emit_buffering (RB_PLAYER (mp), mp->priv->stream_data, progress);
break;
}
case GST_MESSAGE_APPLICATION:
structure = gst_message_get_structure (message);
_rb_player_emit_event (RB_PLAYER (mp), mp->priv->stream_data, gst_structure_get_name (structure), NULL);
break;
case GST_MESSAGE_STREAM_START:
if (mp->priv->playbin_stream_changing) {
rb_debug ("got STREAM_START message");
mp->priv->playbin_stream_changing = FALSE;
emit_playing_stream_and_tags (mp, TRUE);
}
break;
case GST_MESSAGE_ELEMENT:
structure = gst_message_get_structure (message);
if (gst_is_missing_plugin_message (message)) {
handle_missing_plugin_message (mp, message);
} else if (gst_structure_has_name (structure, "redirect")) {
const char *uri = gst_structure_get_string (structure, "new-location");
_rb_player_emit_redirect (RB_PLAYER (mp), mp->priv->stream_data, uri);
}
break;
default:
break;
}
/* emit message signals too, so plugins can process messages */
gst_bus_async_signal_func (bus, message, NULL);
return TRUE;
}