Bug 679823 – [0.11] playsink: pad 0x123456 has no probe with id `4' warning

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Bug 679823 - [0.11] playsink: pad 0x123456 has no probe with id `4' warning


Summary:	[0.11] playsink: pad 0x123456 has no probe with id `4' warning


Status:	RESOLVED FIXED

Product:	GStreamer
Classification:	Platform
Component:	gst-plugins-base
Version:	0.11.x
Hardware:	Other Linux

Importance:	Normal blocker
Target Milestone:	0.11.x
Assigned To:	GStreamer Maintainers
QA Contact:	GStreamer Maintainers

URL:
Whiteboard:

Depends on:
Blocks:

Reported:	2012-07-12 20:05 UTC by Tim-Philipp Müller
Modified:	2012-09-04 08:07 UTC

See Also:
GNOME target:	---
GNOME version:	---

Attachments
simple wrapper around playbin to play multiple files (1.02 KB, text/x-csrc) 2012-08-29 20:12 UTC, Arnaud Vrac	Details

Description Tim-Philipp Müller 2012-07-12 20:05:12 UTC

I get this occasionally when switching to the next song in totem's playlist. Seems to be a race of some sort(?).

Stack trace (other threads not particularly interesting):

+ Trace 230504

Thread 17 (Thread 0x7fffcbd07700 (LWP 4288))

#0 gst_pad_remove_probe
at gstpad.c line 1303
#1 audio_set_blocked
at gstplaysink.c line 3809
#2 sinkpad_blocked_cb
at gstplaysink.c line 3903
#3 probe_hook_marshal
at gstpad.c line 2986
#4 g_hook_list_marshal
at /tmp/buildd/glib2.0-2.32.3/./glib/ghook.c line 676
#5 do_probe_callbacks
at gstpad.c line 3077
#6 gst_pad_push_event_unchecked
at gstpad.c line 4420
#7 push_sticky
at gstpad.c line 3232
#8 events_foreach
at gstpad.c line 514
#9 check_sticky
at gstpad.c line 3271
#10 gst_pad_push_event
at gstpad.c line 4564
#11 gst_pad_send_event_unchecked
at gstpad.c line 4746
#12 gst_pad_send_event
at gstpad.c line 4896
#13 stream_changed_data_probe
at gstplaybin2.c line 2725
#14 probe_hook_marshal
at gstpad.c line 2986
#15 g_hook_list_marshal
at /tmp/buildd/glib2.0-2.32.3/./glib/ghook.c line 676
#16 do_probe_callbacks
at gstpad.c line 3077
#17 gst_pad_send_event_unchecked
at gstpad.c line 4729
#18 gst_pad_push_event_unchecked
at gstpad.c line 4441
#19 push_sticky
at gstpad.c line 3232
#20 events_foreach
at gstpad.c line 514
#21 check_sticky
at gstpad.c line 3271
#22 gst_pad_push_event
at gstpad.c line 4564
#23 gst_selector_pad_event
at gstinputselector.c line 548
#24 gst_pad_send_event_unchecked
at gstpad.c line 4746
#25 gst_pad_push_event_unchecked
at gstpad.c line 4441
#26 push_sticky
at gstpad.c line 3232
#27 events_foreach
at gstpad.c line 514
#28 check_sticky
at gstpad.c line 3271
#29 gst_pad_push_event
at gstpad.c line 4564
#30 gst_pad_send_event_unchecked
at gstpad.c line 4746
#31 gst_pad_push_event_unchecked
at gstpad.c line 4441
#32 push_sticky
at gstpad.c line 3232
#33 events_foreach
at gstpad.c line 514
#34 check_sticky
at gstpad.c line 3271
#35 gst_pad_push_data
at gstpad.c line 3784
#36 gst_pad_chain_data_unchecked
at gstpad.c line 3588
#37 gst_pad_push_data
at gstpad.c line 3801
#38 gst_pad_push
at gstpad.c line 3904
#39 gst_video_decoder_clip_and_push_buf
at gstvideodecoder.c line 2307
#40 gst_video_decoder_finish_frame
at gstvideodecoder.c line 2223
#41 gst_ffmpegviddec_video_frame
at gstffmpegviddec.c line 1138
#42 gst_ffmpegviddec_frame
at gstffmpegviddec.c line 1195
#43 gst_ffmpegviddec_handle_frame
at gstffmpegviddec.c line 1310
#44 gst_video_decoder_decode_frame
at gstvideodecoder.c line 2468
#45 gst_video_decoder_chain_forward
at gstvideodecoder.c line 1616
#46 gst_video_decoder_chain
at gstvideodecoder.c line 1860
#47 gst_pad_chain_data_unchecked
at gstpad.c line 3588
#48 gst_pad_push_data
at gstpad.c line 3801
#49 gst_pad_push
at gstpad.c line 3904
#50 gst_base_parse_push_frame
at gstbaseparse.c line 2080
#51 gst_base_parse_handle_and_push_frame
at gstbaseparse.c line 1905
#52 gst_base_parse_finish_frame
at gstbaseparse.c line 2200
#53 gst_h263_parse_handle_frame
at gsth263parse.c line 344
#54 gst_base_parse_handle_buffer
at gstbaseparse.c line 1770
#55 gst_base_parse_chain
at gstbaseparse.c line 2589
#56 gst_pad_chain_data_unchecked
at gstpad.c line 3588
#57 gst_pad_push_data
at gstpad.c line 3801
#58 gst_pad_push
at gstpad.c line 3904
#59 gst_single_queue_push_one
at gstmultiqueue.c line 1057
#60 gst_multi_queue_loop
at gstmultiqueue.c line 1303
#61 gst_task_func
at gsttask.c line 316
#62 g_thread_pool_thread_proxy
at /tmp/buildd/glib2.0-2.32.3/./glib/gthreadpool.c line 309
#63 g_thread_proxy
at /tmp/buildd/glib2.0-2.32.3/./glib/gthread.c line 801
#64 start_thread
at pthread_create.c line 304
#65 clone
at ../sysdeps/unix/sysv/linux/x86_64/clone.S line 112
#66 ??

Comment 1 Tim-Philipp Müller 2012-08-07 10:16:07 UTC

I actually get this constantly now, after which things hang (but can continue to next song in totem with next button). Marking up.

Comment 2 Arnaud Vrac 2012-08-29 20:11:35 UTC

To reproduce this you simply need to play a video file, then an audio file, then a video file again.

I attached a sample player to reproduce it easily. Run it this way:
./player <video_file> <audio_file> <video_file>

Comment 3 Arnaud Vrac 2012-08-29 20:12:43 UTC

Created attachment 222838 [details]
simple wrapper around playbin to play multiple files

Comment 4 Wim Taymans 2012-09-04 08:07:11 UTC

commit ac61fb52211418a269b61f4b542b3cc3c006d441
Author: Wim Taymans <wim.taymans@collabora.co.uk>
Date:   Tue Sep 4 10:03:25 2012 +0200

    playsink: unblock pads before releasing
    
    Fixes https://bugzilla.gnome.org/show_bug.cgi?id=679823