$ rhythmbox -D player

(rhythmbox:26914): Gtk-CRITICAL **: gtk_css_provider_load_from_path: assertion 'path != NULL' failed
(09:20:13) [0x243c780] [player_settings_changed_cb] rb-shell-player.c:923: track transition time changed
(09:20:13) [0x243c780] [player_settings_changed_cb] rb-shell-player.c:914: play order setting changed
(09:20:13) [0x243c780] [rb_shell_player_sync_buttons] rb-shell-player.c:1974: syncing with source (nil)
(09:20:13) [0x243c780] [rb_shell_player_sync_control_state] rb-shell-player.c:1468: syncing control state
(09:20:13) [0x243c780] [rb_shell_player_set_playing_source_internal] rb-shell-player.c:2055: setting playing source to (nil)
(09:20:13) [0x243c780] [rb_shell_player_sync_with_source] rb-shell-player.c:1882: playing source: (nil), active entry: (nil)
(09:20:13) [0x243c780] [rb_shell_player_sync_control_state] rb-shell-player.c:1468: syncing control state

(rhythmbox:26914): GLib-GObject-CRITICAL **: object SoupServer 0x2b14510 finalized while still in-construction

(rhythmbox:26914): GLib-GObject-CRITICAL **: Custom constructor for class SoupServer returned NULL (which is invalid). Please use GInitable instead.

(rhythmbox:26914): GLib-GObject-CRITICAL **: object SoupServer 0x2b14510 finalized while still in-construction

(rhythmbox:26914): GLib-GObject-CRITICAL **: Custom constructor for class SoupServer returned NULL (which is invalid). Please use GInitable instead.

(rhythmbox:26914): GLib-GObject-CRITICAL **: object SoupServer 0x7ff438003480 finalized while still in-construction

(rhythmbox:26914): GLib-GObject-CRITICAL **: Custom constructor for class SoupServer returned NULL (which is invalid). Please use GInitable instead.
(09:20:14) [0x243c780] [rb_generic_player_plugin_init] rb-generic-player-plugin.c:84: RBGenericPlayerPlugin initialising
Unable to open ~/.mtpz-data for reading, MTPZ disabled.(09:20:14) [0x243c780] [rb_shell_player_set_source_internal] rb-shell-player.c:3041: selected source 0x28203c0
(09:20:14) [0x243c780] [rb_shell_player_sync_with_selected_source] rb-shell-player.c:2350: syncing with selected source: 0x28203c0
(09:20:14) [0x243c780] [rb_shell_player_sync_with_selected_source] rb-shell-player.c:2353: no playing source, new source is 0x28203c0
(09:20:14) [0x243c780] [rb_shell_player_sync_with_source] rb-shell-player.c:1882: playing source: (nil), active entry: (nil)
(09:20:14) [0x243c780] [rb_shell_player_sync_buttons] rb-shell-player.c:1974: syncing with source 0x28203c0
(09:20:16) [0x243c780] [rb_shell_player_set_source_internal] rb-shell-player.c:3041: selected source 0x2a62700
(09:20:16) [0x243c780] [rb_shell_player_sync_with_selected_source] rb-shell-player.c:2350: syncing with selected source: 0x2a62700
(09:20:16) [0x243c780] [rb_shell_player_sync_with_selected_source] rb-shell-player.c:2353: no playing source, new source is 0x2a62700
(09:20:16) [0x243c780] [rb_shell_player_sync_with_source] rb-shell-player.c:1882: playing source: (nil), active entry: (nil)
(09:20:16) [0x243c780] [rb_shell_player_sync_buttons] rb-shell-player.c:1974: syncing with source 0x2a62700
(09:20:24) [0x243c780] [rb_shell_player_entry_activated_cb] rb-shell-player.c:1645: got entry 0x7ff4209a62b0 activated
(09:20:24) [0x243c780] [rb_shell_player_set_playing_source_internal] rb-shell-player.c:2055: setting playing source to 0x2a62700
(09:20:24) [0x243c780] [player_has_prev_changed_cb] rb-mpris-plugin.c:1309: emitting CanGoPrevious change
(09:20:24) [0x243c780] [rb_shell_player_sync_with_source] rb-shell-player.c:1882: playing source: 0x2a62700, active entry: (nil)
(09:20:24) [0x243c780] [rb_shell_player_sync_buttons] rb-shell-player.c:1974: syncing with source 0x2a62700
(09:20:24) [0x243c780] [rb_shell_player_set_playing_entry] rb-shell-player.c:880: Success!
(09:20:24) [0x3843000] [playlist_entry_cb] rb-shell-player.c:645: adding stream url http://1741.live.streamtheworld.com:80/CBC_R1_MTL_H_SC (0x388e350)
(09:20:24) [0x3843000] [playlist_entry_cb] rb-shell-player.c:645: adding stream url http://1741.live.streamtheworld.com:3690/CBC_R1_MTL_H_SC (0x388e350)
(09:20:24) [0x3843000] [playlist_entry_cb] rb-shell-player.c:645: adding stream url http://1741.live.streamtheworld.com:443/CBC_R1_MTL_H_SC (0x388e350)
(09:20:24) [0x3843000] [open_location_thread] rb-shell-player.c:684: playing first stream url http://1741.live.streamtheworld.com:80/CBC_R1_MTL_H_SC
(09:20:24) [0x3843000] [rb_shell_player_open_playlist_url] rb-shell-player.c:333: playing stream url http://1741.live.streamtheworld.com:80/CBC_R1_MTL_H_SC
(09:20:24) [0x3843000] [rb_player_gst_try_audio_sink] rb-player-gst-helper.c:101: audio sink autoaudiosink changed to READY state successfully
(09:20:24) [0x3843000] [create_stream] rb-player-gst-xfade.c:2106: creating new stream for http://1741.live.streamtheworld.com:80/CBC_R1_MTL_H_SC (stream data 0x7ff4209a62b0)
(09:20:24) [0x3843000] [dump_stream_list] rb-player-gst-xfade.c:496: current stream list:
(09:20:24) [0x3843000] [dump_stream_list] rb-player-gst-xfade.c:519: [waiting] http://1741.live.streamtheworld.com:80/CBC_R1_MTL_H_SC
(09:20:24) [0x3843000] [stream_source_setup_cb] rb-player-gst-xfade.c:1973: got source notification for stream http://1741.live.streamtheworld.com:80/CBC_R1_MTL_H_SC
(09:20:24) [0x3843000] [start_sink_locked] rb-player-gst-xfade.c:2779: starting sink
(09:20:24) [0x3843000] [start_sink_locked] rb-player-gst-xfade.c:2873: adder is now PAUSED
(09:20:24) [0x3843000] [start_sink_locked] rb-player-gst-xfade.c:2875: silencebin is now PAUSED
(09:20:24) [0x7ff42c1df680] [stream_pad_added_cb] rb-player-gst-xfade.c:2006: got decoded audio pad for stream http://1741.live.streamtheworld.com:80/CBC_R1_MTL_H_SC
(09:20:24) [0x7ff42c1df050] [stream_src_blocked_cb] rb-player-gst-xfade.c:2520: stream http://1741.live.streamtheworld.com:80/CBC_R1_MTL_H_SC requires buffering
(09:20:24) [0x3843000] [start_sink_locked] rb-player-gst-xfade.c:2870: outputbin is now PAUSED
(09:20:24) [0x3843000] [rb_player_gst_find_element_with_property] rb-player-gst-helper.c:151: iterating bin looking for property volume
(09:20:24) [0x3843000] [find_property_element] rb-player-gst-helper.c:117: found property "volume" on element autoaudiosink0-actual-sink-pulse
(09:20:24) [0x3843000] [start_sink_locked] rb-player-gst-xfade.c:2938: sink playing
(09:20:24) [0x3843000] [rb_player_gst_xfade_bus_cb] rb-player-gst-xfade.c:1896: still buffering, 1
**
Rhythmbox:ERROR:rb-player.c:638:_rb_player_emit_buffering: assertion failed: (rb_is_main_thread ())
Aborted (core dumped)

